Persönliche Liste Prof. Bretschneider

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Rösch, Dennis; Nicolai, Steffen; Bretschneider, Peter;
Container-based virtualization of an IEC 61850 substation co-simulation approach. - In: IEEE Xplore digital library, ISSN 2473-2001, (2022), insges. 6 S.

In automated structures of the power grid, such as the digitized substations, dependencies of the functionality on the communication network are increasingly the focus of considerations. A co-simulation enables the joint and holistic analysis of the two subsystems - the power grid and the network communication infrastructure. Our approach presented here is considered with the real-world requirements of IEC 61850-based substations and is assigned to them. From this, the requirements for co-simulation and coupling of the two subsystems are derived. Using the IEC 61850 communication standard consequently, a substation can be fully described and automatically passed to the co-simulation by a presented framework to perform analyses in real-time online operation. By automation, the framework can reduce the implementation effort, which is usually significantly higher within virtualization than in available network simulation systems. Under certain prerequisites and conditions, our approach enables the generation of valid network traffic, which can be used for downstream analyses of the network.



https://doi.org/10.1109/MSCPES55116.2022.9770163
Kummerow, André; Schäfer, Kevin; Gupta, Parul; Nicolai, Steffen; Bretschneider, Peter;
Combined network intrusion and phasor data anomaly detection for secure dynamic control centers. - In: Energies, ISSN 1996-1073, Bd. 15 (2022), 9, 3455, S. 1-16

The dynamic operation of power transmission systems requires the acquisition of reliable and accurate measurement and state information. The use of TCP/IP-based communication protocols such as IEEE C37.118 or IEC 61850 introduces different gateways to launch cyber-attacks and to compromise major system operation functionalities. Within this study, a combined network intrusion and phasor data anomaly detection system is proposed to enable a secure system operation in the presence of cyber-attacks for dynamic control centers. This includes the utilization of expert-rules, one-class classifiers, as well as recurrent neural networks to monitor different network packet and measurement information. The effectiveness of the proposed network intrusion and phasor data anomaly detection system is shown within a real-time simulation testbed considering multiple operation and cyber-attack conditions.



https://doi.org/10.3390/en15093455
Eckner, Stefanie; Bretschneider, Peter;
Multiagent-system based smart charging algorithm for a time-variant set of electric vehicles. - In: 5th E-Mobility Power System Integration Symposium (EMOB 2021), (2022), S. 100-104

The electrification of the mobility sector is of major importance on the way to a carbon-free society. However, delivering the charging power for the increasing number of electric vehicles may create considerable strain for the supply grid. On the other hand, the long parking hours of an average vehicle facilitate the use of smart charging algorithms, which in the future might even provide an operating reserve for the electrical grid. Therefore, a well thought-out approach to private and public charging stations will assure the success of the coupling between the sectors of electricity and mobility. We present a multiagent system, which allocates balanced charging power to satisfy simulated charging requests from a set of charging stations sharing one grid connection point with limited power input. The multiagent system with a time-discretisation of one minute is based on the python osbrain module. The merit function includes the target of meeting all charging demands in the given time and the goal of distributing the power consumption as uniformly over time as possible. A variable set of parameters allows to probe the range between focussing on fulfilment of charging requests and supplying maximum flexibility to the local grid. Additionally, the performance of the multiagent system is discussed in the context of scalability and efficiency of the algorithm.



Kummerow, André; Monsalve, Cristian; Bretschneider, Peter;
Siamese recurrent neural networks for the robust classification of grid disturbances in transmission power systems considering unknown events. - In: IET smart grid, ISSN 2515-2947, Bd. 5 (2022), 1, S. 51-61

The automated identification and localisation of grid disturbances is a major research area and key technology for the monitoring and control of future power systems. Current recognition systems rely on sufficient training data and are very error-prone to disturbance events, which are unseen during training. This study introduces a robust Siamese recurrent neural network using attention-based embedding functions to simultaneously identify and locate disturbances from synchrophasor data. Additionally, a novel double-sigmoid classifier is introduced for reliable differentiation between known and unknown disturbance types and locations. Different models are evaluated within an open-set classification problem for a generic power transmission system considering different unknown disturbance events. A detailed analysis of the results is provided and classification results are compared with a state-of-the-art open-set classifier.



https://doi.org/10.1049/stg2.12051
Monsalve, Cristian; Naumann, Steffi; Kharboutli, Samir; Nicolai, Steffen; Bretschneider, Peter;
Modelling and coupling multi-energy systems for supplying methane to transportation sector in Germany. - In: ETG Congress 2021, (2021), S. 353-357

The MethQuest research project is about creating new processes for generating renewable gas fuels and progressing existing technologies. At the same time, the project investigates appropriate optimization concepts for motors and engines in cars, ships and electric power generation systems. In addition, MethQuest aims to develop solutions for linking infra-structure for electricity, gas and heat and researches the possible effects and benefits the large-scale introduction of renewable gas might have in the energy sector in Germany. The project is divided into several individual projects in order to deal with the large topic area in a targeted manner. The project MethSys is developing a whole-area simulation for Germany covering the supply of renewable energy methane and the entire logistics chain from generation, transport and storage through to end-users. The group is likewise creating a comprehensive concept illustrating how the operation of Power-to-Gas (P2G) plants can best be controlled across the entire energy system to ensure an optimum grid operation. The paper describes the models and methodology used for evaluating technically electric distribution grid and assessing regional infrastructure requirements for integrating P2G that allow supplying the transportation sector under different market development scenarios.



https://ieeexplore.ieee.org/document/9469637
Kharboutli, Samir; Bretschneider, Peter;
Analysis of methodologies for systemic assessment of buildings and districts. - In: ETG Congress 2021, (2021), S. 383-388

The focus of the paper is the analysis of different methodologies for the evaluation of systemic aspects of buildings and districts. A distinction is made between the objectives of economy, ecology, system serviceability and resilience. For each sub-area, common quantification options are analysed and evaluated in order to present the research needs and further development possibilities with regard to a holistic evaluation. This intended evaluation will have to take different, possibly conflicting, criteria into account, for which a multi-cultural objective function is likely to be formulated in the case of the search for the optimal solution.



https://ieeexplore.ieee.org/document/9469641
Naumann, Steffi; Bretschneider, Peter;
Planning strategy for a zero carbon cross sectoral energy system. - In: ETG Congress 2021, (2021), S. 13-18

This paper presents a new multi-criteria optimization model for energy system planning that combines the sectors of electricity, heat, material use (gas, fuels, H2) and mobility. In contrast to other multi-criteria approaches for energy-system-planning the aim of the presented model is to find an optimal set of technologies to reduce and finally provide a CO2 neutral energy system by 2050 at the latest in a cost-optimal manner. To do so, a wide set of generation and storage technologies as well as the sector connecting Power-to-X technologies are modeled in a technical and economical manner. The planning process is restricted by realistic assumptions for the potentials and the annual expansion rates for the different technologies. To depict the uncertain political and social conditions, a euphoric and a conservative scenario are investigated. The different accounting methods for the emissions are discussed to find an energy system that is not strongly dependent on the remaining German energy system. The assumptions and first results of the case study for Thuringia are presented and discussed in the paper.



https://ieeexplore.ieee.org/document/9469518
Monsalve, Cristian; Alramlawi, Mansour; Ruhe, Stephan; Schäfer, Kevin; Nicolai, Steffen; Bretschneider, Peter;
A novel framework architecture for distributed digital twins in power systems. - In: ETG Congress 2021, (2021), S. 483-488

This paper presents a comprehensive approach of a novel framework architecture for distributed digital twins (DTs) in power systems. This scientific work is a part of the research project AUTOGRID1, which goal is the development and investigation of new methods and algorithms to increase the automation-level for the distribution grid operation based on distributed DTs.. A higher automation level is required in order to maintain the stability and safe operation of the grid under high penetration of renewable energies and power electronic devices. In this sense, the DTs are an important part of this project, because they allow enhancing the system observability, capture systems dynamic and adapt the DT models according to changes and events in the real systems. Hence, this paper describes a framework architecture for coupling multiple DT models, their requirements and the implemented functionalities in each DT.



https://ieeexplore.ieee.org/document/9469650
Kummerow, André; Dirbas, Mohammad; Monsalve, Cristian; Nicolai, Steffen; Bretschneider, Peter;
Influence of autoregressive noise on phasor data based disturbance classification. - In: SEST21, (2021), insges. 6 S.

The automated classification of grid disturbances based on phasor measurement units (PMU) is a key application for a fast and reliable monitoring and control of future power systems. The predominant use of dynamic simulations for the training of the classification models can lead to severe misclassifications during the application phase due to measurement induced error signals. As an advancement to standard white noise approaches, an optimization-based error model is introduced for the synthesis of PMU measurement signals with specific noise characteristics. This approach allows a flexible creation of more sophisticated error signals. Extensive simulation studies are performed for a disturbance classification model based on a recurrent neural network using a large electrical transmission grid.



https://doi.org/10.1109/SEST50973.2021.9543278
Rösch, Dennis; Nicolai, Steffen; Bretschneider, Peter;
Combined simulation and virtualization approach for interconnected substation automation. - In: 2021 6th International Conference on Smart and Sustainable Technologies (SpliTech), (2021), insges. 6 S.

The interaction between communication technology and the power grids is a major issue in research studies to investigate the effect of cyberattacks, communication failures and other errors to the physical behavior of the power grid. Especially the interconnected digitalized substations of the modern power grids are of interest due to their high-risk potential and dependence of communication technology. Disturbances and negative influences on these key control entities can affect the entire underlying power supply as a critical infrastructure. Recent publications and research projects are trying to investigate the effects by using simulation tools within co-simulation approaches. In this paper, we present a novel approach using a conventional real-time power grid simulation and to combine it with a container-based virtualization of the communication infrastructure. The communication infrastructure contains all the important and necessary components, hosts, devices, and communication aspects to set the network traffic and interactivity of substation automation setups regarding the IEC 61850 standard. This paper will show the feasibility of combining online real-time grid simulation to a container-based virtualization on the process level. The evaluation is done by analyzing occurred time delays and latency about requirements given by IEC 61850 standard. A validation against these transmission time requirements is presented to provide an indication of the feasibility of our approach.



https://doi.org/10.23919/SpliTech52315.2021.9566380
Sommer, Henrik; Winkelkotte, Martin; Bretschneider, Peter;
Optimization of a parametric fundamental model for unit commitment modeling. - In: Von Komponenten bis zum Gesamtsystem für die Energiewende, (2021), S. 525-530

Sommer, Henrik; Winkelkotte, Martin; Bretschneider, Peter;
Optimierung eines parametrischen Fundamentalmodells zur Kraftwerkseinsatzplanung. - In: RET.Con 2021, (2021), S. 162-170

Die Strompreisprognose stellt eine wichtige sehr Eingangsgröße für die Optimierung der eigenen Position am Strommarkt dar. Mit ihrer Hilfe lassen sich Handelserlöse vergrößern und Risiken minimieren. Für die Prognose kommen dabei verschiedene Verfahren zum Einsatz. Eine Modellierungsmethode sind die sogenannten Fundamentalmodelle (FM). In der vorliegenden Arbeit wird ein neuer Ansatz vorgeschlagen und untersucht, der einen Beitrag zur Verbesserung der Prognosegüte von datensparsamen FM leistet. Diese Verbesserung betrifft insbesondere die Güte des zu prognostizierenden Kraftwerkseinsatzes, welcher eine signifikante Zwischengröße bei der Strompreisprognose mit FM darstellt. Die Arbeit ist folgendermaßen aufgebaut: Abschnitt 1 liefert eine kurze Einführung und Übersicht zum Thema der Strompreisprognose. Der Abschnitt 2 erläutert das Funktionsprinzip eines FM, bevor im Abschnitt 3 das weiterentwickelte Modell beschrieben wird. Im Abschnitt 4 werden die Ergebnisse einer exemplarischen Untersuchung vorgestellt und in Abschnitt 5 evaluiert.



Bauer, Fabian; Hagner, Jessica; Bretschneider, Peter; Klaiber, Stefan;
Improvement of the prediction quality of electrical load profiles with artificial neural networks. - In: Machine Learning for Cyber Physical Systems, (2021), S. 13-21

Against the backdrop of the economically and ecologically optimal management of electrical energy systems, accurate predictions of consumption load profiles play an important role. On this basis, it is possible to plan and implement the use of controllable energy generation and storage systems as well as energy procurement with the required lead-time, taking into account the technical and contractual boundary conditions.The recorded electrical load profiles will increase considerably in the course of the digitization of the energy industry. In order to make the most accurate predictions possible, it is necessary to develop and investigate models that take account of the growing quantity structure and, due to the significantly higher number of observations, improve the forecasting quality as far as possible.Artificial neural networks (ANN) are increasingly being used to solve non-linear problems for a growing amount of data that is affected by human and other unpredictable influences. Consequently, the model approach of an ANN is chosen for predicting load profiles. Aim of the thesis is the simulative investigation and the evaluation of the quality and optimality of a prediction model based on an ANN for electrical load profiles.



Flemming, Sebastian; Naumann, Steffi; Bretschneider, Peter;
Energie- und Lademanagement für eine CO2-neutralen Beladung von batterieelektrisch betriebenen Service-Fahrzeugen auf dem Flughafenvorfeld. - In: RET.Con 2020, (2020), S. 188-196

Im Projekt: ALEC (Alternation * Light * Electric * Constructions) ist eine der Zielstellungen die Realisierung einer CO2-neutralen elektrischen Nachladung von batterieelektrisch betriebenen Service-Fahrzeugen auf dem Flughafenvorfeld zu ermöglichen. Für die Umsetzung der obenstehenden Zielsetzung stellen die Autoren ihr Konzept und den Umsetzungstand zum Zusammenspiel zwischen lokalem Lademanagementsystem (LMS) und überlagertem Energiemanagementsystem (üEMS) vor. Das LMS übernimmt hierbei die Funktion der Datenaufbereitung und -aggregation verschiedener Informationen der einzelnen Elektrofahrzeuge. Unter Verwendung der aggregierten Informationen aus den LMS und der erwarteten Energiebereitstellung aus lokalen, erneuerbaren Quellen ermittelt das üEMS die optimale, CO2-minimale elektrische Nachladung der Elektrofahrzeugflotte auf dem Flughafenvorfeld. Der auf diesem Weg generierte Flottenladefahrplan wird abschließend im LMS disaggregiert und fahrzeugspezifische Ladefahrpläne generiert.



https://dx.doi.org/10.22032/dbt.46248
Ruhe, Stephan; Fechner, Max; Nicolai, Steffen; Bretschneider, Peter;
Simulation of coupled components within Power-Hardware-in-the-Loop (PHiL) test bench. - In: Verifying the targets, (2020), insges. 6 S.

Power Hardware-in-the-Loop (PHiL) becomes more and more an important part at the investigation of dynamics and stability issues of the electrical grids. As derived from Hardware-in-the-Loop (HiL) approach, one of the central PHiL requirements is to feedback measurement signals into the simulation. In PHIL applications, the operational behavior of a connected device is integrated within real-time simulations. With the integration of the Hardware under Test (HuT) into a PHiL test bench, stability issues may arise. Therefore, this paper focuses on the stability investigation and the description of typical PHiL setup and condititions. The frequency domain modelling reveals phenomenon of instability as well as concepts of Interface Algorithm (IA) and Compensation Methods (CM). To investigate the behavior of different devices as HuT, also the HuT is modelled and simulated in the real time environment. In the next step, the analog loopback integrates HuT models into PHiL simulation by using HYPERSIM from OPAL-RT as simulation software (time domain). Analog loopback introduces time delay into the PHiL simulation that would also occur in real PHiL applications with connected devices to build a more realistic environment. The simulation with analog loopback consists of implemented IAs which feedback operational behavior of HuT models into PHiL test bench. In selected simulation approaches, the mentioned technique loops back currents of various loads and inverters. Therefore it is possible to evaluate the feedback of devices with different described methods and their impact on stability and signal fidelity.



https://doi.org/10.1109/UPEC49904.2020.9209844
Pemsel, Jonas; Warweg, Oliver; Bretschneider, Peter;
Application of blockchain technology for electricity supplier change. - In: 2020 17th International Conference on the European Energy Market (EEM), (2020), insges. 6 S.

In the course of digitalization various technologies which could deeply transform present processes are put forth. As such an innovation, blockchain is attributed to have potential to make energy industry procedures more efficient and to simplify them. The aim of this paper is to examine the applicability of this technology using the change of power supplier as an example. Based on Ethereum a proper blockchain solution for the use-case is developed using smart contracts to handle all processes of the example. Beside qualitative evaluation of manipulation security and privacy, a test scenario is built to measure the speed in which the developed solution allows supplier changes.



https://doi.org/10.1109/EEM49802.2020.9221923
Lenk, Steve; Arnoldt, Alexander; Rösch, Dennis; Bretschneider, Peter;
Hardware/Software architecture to investigate resilience in energy management for smart grids. - In: Smart grids: key enablers of a green power system, (2020), S. 51-55

In the age of digitization, for critical infrastructures arises new challenges due to the amount of data to handle, the increasing automation level and threats to cybersecurity. Resilience of critical systems, i. e., to be prepared for and to prevent threats, to protect systems against them, to respond to threats and to recover from them, rises in priority. Here, we present a hardware-software architecture design for energy management systems as part of critical energy infrastructures, which is scalable, distributable, parallelizable and adaptable. Therefore, it is capable to handle the increasing amount of data but it also allows an in-depth monitoring. This enables the investigation of the impact of diverse threat scenarios like technical errors, human failure and cyber attacks. Thus, it is the basis for developing resilient algorithms, improved communications channels and monitoring mechanisms for energy management systems.



https://doi.org/10.1109/ISGT-Europe47291.2020.9248776
Klaiber, Stefan; Bauer, Fabian; Bretschneider, Peter;
Improvement of grid loss forecast for energy transmission grids :
Verbesserung der Netzverlustprognose für Energieübertragungsnetze. - In: Automatisierungstechnik, ISSN 2196-677X, Bd. 68 (2020), 9, S. 738-749

Bei der Energieübertragung entstehen Netzverluste in den Leitungen und Betriebsmitteln des elektrischen Energiesystems. Die Höhe der Netzverluste ist sowohl von der Netzlast als auch von zahlreichen weiteren Einflussgrößen abhängig. Einen besonderen Einfluss hat dabei die fluktuierende und größtenteils verbrauchsferne Erzeugung durch erneuerbare Energien. Die Übertragungsnetzbetreiber müssen die elektrische Energie zum Ausgleich der Netzverluste im Voraus beschaffen. Um die benötigte Ausgleichsenergie möglichst kostenminimal einzukaufen, ist eine genaue Prognose der Netzverluste notwendig. Im Rahmen des vorliegenden Beitrags wird ein Verfahren vorgestellt, das für die Prognose der Netzverluste im Übertragungsnetz der 50Hertz Transmission GmbH zum Einsatz kommt. Als Modellansatz der Prognosemethode werden Künstliche Neuronale Netze verwendet. Das als Ergebnis der Arbeiten entwickelte Modell für die Netzverlustprognose steigert die Prognosegüte im Vergleich zum bisherigen Modell um sieben Prozent und befindet sich bei 50Hertz seit Juni 2019 im operativen Einsatz.



https://doi.org/10.1515/auto-2020-0076
Kummerow, André; Monsalve, Cristian; Nicolai, Steffen; Bretschneider, Peter;
Simultaneous online identification and localization of disturbances in power transmission systems. - In: New businesses for energy transition, (2019), insges. 5 S.

Within this survey an approach is presented for the simultaneous online identification and localization of grid disturbances in transmission power systems using different techniques for multivariate time series classification. For the generation of the training data dynamic simulations are performed using DIgSILENT® PowerFactory combined with a Monte Carlo based initial state selection. Within this survey different classifiers are developed and compared with each other including dynamic time warping, support vector machines, shapelets, recurrent neural networks and random forests. The performance is evaluated in terms of classification accuracy and prediction time.



https://doi.org/10.1109/ISGTEurope.2019.8905711
Arnoldt, Alexander; Bretschneider, Peter;
Model predictive control considering forecast deviation in local districts. - In: 16th International Conference on the European Energy Market (EEM), (2019), insges. 5 S.

The state of the art in science is to take into account forecast uncertainties in optimization either in the form of variant calculations or in stochastic optimization models. This paper presents an alternative approach for the consideration of forecast uncertainties within model predictive control. The approach defines a guaranteed flexibility range, which is responsible for the compensation of expected forecast errors. It is proven that the risk can be reduced with the help of quantiles based flexibility bands. To implement the approach, a controllable resource is required in the energy system. In this case it is an energy storage device. The result shows that with the help of the new approach it is possible to minimize the forecast uncertainties in the local energy system and thus reduce the impact on the overall system. With this algorithmic approach, the planning reliability in the overall energy system is to be increased.



https://doi.org/10.1109/EEM.2019.8916514
Albayrak, Sahin; Bretschneider, Peter; El Sayed, Nadim; Freund, Daniel; Hühn, Thomas; Jiang, Teng; Khan, Manzoor Achmed; Malsch, Michael; Nicolai, Steffen; Novitskiy, Alexander; Prinz, Steffen; Rädel, Uwe; Rüster, Christian; Ruhe, Stephan; Schäfer, Kevin; Schaller, Falk; Schlegel, Steffen; Schönfeld, Benjamin; Westermann, Dirk; Yang, Shangdan;
Robuste Steuerung- und Regelung von Verteilernetzen mit hohem Anteil regelfähiger Erzeuger und Lasten mit dem Ansatz Flexible AC Distribution Systems (FACDS) - VEREDELE : Abschlussbericht : Laufzeit: 01.08.2015-31.12.2018. - [Ilmenau] : Fraunhofer IOSB-AST. - 1 Online-Ressource (152 Seiten, 8,94 MB)Förderkennzeichen BMWi 0325800A-F

https://doi.org/10.2314/KXP:1680890948
Kummerow, André; Rösch, Dennis; Monsalve, Cristian; Nicolai, Steffen; Bretschneider, Peter; Brosinsky, Christoph; Westermann, Dirk;
Challenges and opportunities for phasor data based event detection in transmission control centers under cyber security constraints. - In: 2019 IEEE Milan PowerTech, (2019), insges. 6 S.

https://doi.org/10.1109/PTC.2019.8810711
Kummerow, André; Brosinsky, Christoph; Monsalve, Cristian; Nicolai, Steffen; Bretschneider, Peter; Westermann, Dirk;
PMU-based online and offline applications for modern power system control centers in hybrid AC-HVDC transmission systems. - In: Internationaler ETG-Kongress 2019, (2019), S. 405-410

Flemming, Sebastian; Nicolai, Steffen; Bretschneider, Peter;
Konzept für ein energieeffizientes Industriegebiet Erfurter Kreuz. - In: RET.Con 2018, (2018), S. 149-153

Im Projekt: "Konzept für ein energieeffizientes Industriegebiet Erfurter Kreuz" wurden mögliche Synergiepotentiale bei einer energetischen Kopplung von mehreren räumlich benachbarten bzw. in einem Industriegebiet ansässigen Unternehmen untersucht und ökonomisch und ökologisch bewertet. Im Fokus der Untersuchung standen Varianten zur energetischen Kopplung für verschiedene Energieformen bis hin zur Integration zusätzlicher Erzeugungsanlagen zur nachhaltigen Bereitstellung von elektrischer und/oder thermischer Energie.



https://doi.org/10.22032/dbt.45832
Kummerow, André; Nicolai, Steffen; Bretschneider, Peter;
Outlier detection methods for uncovering of critical events in historical phasor measurement records. - In: 2018 3rd International Conference on Power and Renewable Energy, (2018), 08006, S. 1-6

The scope of this survey is the uncovering of potential critical events from mixed PMU data sets. An unsupervised procedure is introduced with the use of different outlier detection methods. For that, different techniques for signal analysis are used to generate features in time and frequency domain as well as linear and non-linear dimension reduction techniques. That approach enables the exploration of critical grid dynamics in power systems without prior knowledge about existing failure patterns. Furthermore new failure patterns can be extracted for the creation of training data sets used for online detection algorithms.



https://doi.org/10.1051/e3sconf/20186408006
Kummerow, André; Nicolai, Steffen; Bretschneider, Peter;
Spatial and temporal PMU data compression for efficient data archiving in modern control centres. - In: 2018 IEEE International Energy Conference (ENERGYCON), ISBN 978-1-5386-3669-5, (2018), insges. 6 S.

The scope of this survey is the compression of PMU data by eliminating redundant information with statistical methods. With that the storage demand in wide area monitoring systems for archiving massive phasor data can be significantly reduced and enables the efficient integration of PMU based applications in modern control centres. Within this paper a general concept is introduced for data reduction in space and time dimension combining different techniques from dimensionality reduction. For this purpose several unsupervised statistical learning methods (e.g. PCA, ICA, NMF) are tested using a real PMU measurement dataset.



https://doi.org/10.1109/ENERGYCON.2018.8398809
Naumann, Steffi; Warweg, Oliver; Klaiber, Stefan; Bretschneider, Peter;
A smart market approach to coordinate market and grid operations. - In: 2018 15th International Conference on the European Energy Market (EEM), ISBN 978-1-5386-1488-4, (2018), insges. 5 S.

Within the venture "REGEES" (REGenerative rEnewable Electricity System) a new approach for a Coordinated Market Grid Operation Management (CMGOM) was developed. It envisages the extension of the balancing process of Balance Responsible Party (BRP) including information of current or estimated grid situation. This paper discusses two different approaches to calculate the restrictions for BRPs by the DSO and the resultant consequences for BRPs optimization. The approaches are applied and assessed in test cases that show their benefits and disadvantages.



https://doi.org/10.1109/EEM.2018.8469214
Ruhe, Stephan; Nicolai, Steffen; Bretschneider, Peter;
Modelling and simulation of electrical phenomena in a real time test bench. - In: 2018 53rd International Universities Power Engineering Conference (UPEC), ISBN 978-1-5386-2910-9, (2018), insges. 6 S.

The energy transition main targets are increase of energy efficiency and promotion of renewable technologies, hence the number of components with power electronics is growing in the electrical system. The research project VEREDELE examines these effects and resulting interactions in order to identify possible challenges and develop suitable solutions. Especially active components, such as electric vehicles, pose major challenges for the modelling and simulation of these devices. The Power-Hardware-in-the-Loop (PHIL) test bed that built up is a solution to this problem and allows the integration of real devices (loads and feeds) into a grid simulation. A model library developed for system tests, which makes it possible to generate any system states to monitor the real behaviour of the equipment and to conclude on potential critical grid states. Furthermore, the characteristics of the signal source of the simulation system examined in this paper and an evaluation of the usability of the system for the intended investigations is given.



https://doi.org/10.1109/UPEC.2018.8542092
Yang, Shangdan; Ruhe, Stephan; Schaller, Falk; Nicolai, Steffen; Bretschneider, Peter;
Dynamic simulation of low-voltage distribution grid with integration of power electronics coupled loads and generators. - In: 2018 53rd International Universities Power Engineering Conference (UPEC), ISBN 978-1-5386-2910-9, (2018), insges. 5 S.

More and more active components, i.e. renewable generators, controllable loads, and storages, were integrated to low-voltage distribution grids. They were often interfaced with power electronics and their active participation in the power system may lead to voltage instabilities and power quality problems. Therefore, one research topic was to analyse the dynamic interactions between these active components, and to develop appropriate control architecture and techniques, which are able to avoid the corresponding instabilities and improve the power quality in the low voltage grids. One challenge of such dynamic simulation was to simulate the interacted system with time resolution of millisecond and to ensure the synchronization between them. In this paper, the suitable dynamic models of single-phase power electronic load and three-phase power electronic generator were conducted. These dynamic models were simulated and validated by the voltage-step-response, respectively. The voltage unbalance was used to quantify the interactions between the dynamic models and grid. In the steady state, the power electronic load induced less voltage unbalance comparing to the conventional passive load, because the power electronic load had better power factor. In certain dynamic processes, with the higher penetration of PE components in the LV grid, we observed the significant increase of voltage unbalance, which was induced by the interactions between the controllers of the active components. Such effects should be considered in the design of low-voltage gird system and its components.



https://doi.org/10.1109/UPEC.2018.8542090
Naumann, Steffi; Klaiber, Stefan; Kummerow, André; Bretschneider, Peter;
Simulation of coordinated market grid operations considering uncertainties. - In: 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), (2018), S. 1-6

Within the venture "REGEES" (REGenerative rEnewable Electricity System) a new approach for a Coordinated Market Grid Operation Management (CMGOM) was developed. This approach is investigated in a simulation considering uncertainties. Therefore, the energy time series generator as a method to generate time series for demand and feed-in is described and used to generate simulation input in the form of forecast-scenarios for load and feed-in. Uncertainties in the form of forecast errors and stochastic time series properties are taken into account. The optimization problem, which represents the mathematical description for the acquisition and balancing process of the Balance Responsible Party (BRP), is introduced. Finally, the energy system simulation is described for a test case in order to evaluate the CMGOM approach with consideration of uncertainty. For this purpose, deterministic optimization and two versions of optimization with uncertainties are compared.



https://doi.org/10.1109/ISGTEurope.2018.8571833
Kummerow, André; Nicolai, Steffen; Bretschneider, Peter;
Ensemble approach for automated extraction of critical events from mixed historical PMU data sets. - In: 2018 IEEE Power & Energy Society General Meeting (PESGM), (2018), insges. 5 S.

The scope of this survey is the automated extraction of critical events from mixed PMU data sets without prior knowledge about existing failure patterns. An unsupervised procedure is introduced that identifies arbitrary disturbance types (e.g. voltage sags, frequency drops, oscillations) using an ensemble outlier detection approach. For that, different techniques for signal analysis are used to generate features in time and frequency domain. That approach enables the exploration of critical grid dynamics in power systems. Furthermore new failure patterns can be extracted for the creation of training datasets used for online detection algorithms.



https://doi.org/10.1109/PESGM.2018.8586641
Kharboutli, Samir; Flemming, Sebastian; Bretschneider, Peter;
Tiefenbohrung : "Sektorenkopplung". - Aachen : Wissenschaftliche Begleitforschung_ENERGIEWENDEBAUEN, RWTH Aachen University, Lehrstuhl für Gebäude- und Raumklimatechnik. - 1 Online-Ressource (41 Seiten, 30,1 MB). - (Schriftenreihe) ISBN 978-3-942789-96-7
Literaturverzeichnis: Seite 35-37

https://edocs.tib.eu/files/e01fn19/1676399801.pdf
Klaiber, Stefan; Naumann, Steffi; Bretschneider, Peter; Arendarski, Bartlomiej; Kormarnicki, Przemyslaw; Richter, André; Wolter, Martin; Schlegel, Steffen; Westermann, Dirk; Duckheim, Mathias; Donlagic, Tarik;
REGEES - Regenerative electrical power system - 100% integration of renewables in 2030; optimal operation and control strategies for a reliable electrical power system in Germany with total integration of renewable energy infeed in 2030 :
Verbundprojekt "REGEES": Optimale Betriebs- und Regelungsstrategien für das zuverlässige elektrische Energieversorgungssystem Deutschlands bei vollständiger Integration der Einspeisung aus erneuerbaren Energien im Zeithorizont 2030 : Schlussbericht REGEES. - [Ilmenau] : Fraunhofer IOSB-AST. - 1 Online-Ressource (159 Seiten, 10,26 MB)Förderkennzeichen BMWi 0325779A-D. - Verbund-Nummer 01157482

https://doi.org/10.2314/KXP:1665338806
Klaiber, Stefan; Naumann, Steffi; Warweg, Oliver; Bretschneider, Peter;
A new operation management approach to coordinate market and grid oerations. - In: International ETG Congress 2017, (2017), S. 167-172

Yang, Shangdan; Schaller, Falk; Schönfeld, Benjamin; Schlegel, Steffen; Fischer, Benjamin; Jiang, Teng; Nicolai, Steffen; Prinz, Steffen; Malsch, Michael; Westermann, Dirk; Bretschneider, Peter;
A cross voltage-levels simulation approach for interaction analysis in converter-dominated distribution networks :
Spannungsebenen-übergreifende Simulation zur Wechselwirkungsuntersuchung in Stromrichter-dominierten Verteilernetzen. - In: International ETG Congress 2017, (2017), S. 218-223

Zimmermann, Tobias; Klaiber, Stefan; Bretschneider, Peter; Naumann, Steffi;
Acquisition of a balance responsible party under grid restrictions in an extended scheduling system. - In: 2017 14th International Conference on the European Energy Market (EEM), ISBN 978-1-5090-5499-2, (2017), insges. 6 S.

https://doi.org/10.1109/EEM.2017.7981889
Dinther, Clemens; vanFey, Bernhard; Renelt, Sven; Strüker, Jens; Flath, Christoph; Terzidis, Orestis; Bretschneider, Peter;
Dient die 10-Punkte-Agenda der Bundesregierung einer erfolgreichen Energiewende?. - In: Energiewirtschaftliche Tagesfragen, ISSN 0013-743X, Bd. 67 (2017), 3, S. 17-22

Klaiber, Stefan; Waczowicz, Simon; Konotop, Irina; Westermann, Dirk; Mikut, Ralf; Bretschneider, Peter;
Forecast of price elastic load behavior :
Prognose für preisbeeinflusstes Verbrauchsverhalten. - In: Automatisierungstechnik, ISSN 2196-677X, Bd. 65 (2017), 3, S. 179-188

https://doi.org/10.1515/auto-2016-0125
Bretschneider, Peter; Bernard, Thomas; Herzog, Reinhard; Tippmann, Volker; Warweg, Oliver; Naumann, Steffi;
Mit dem Internet der Dinge vom Gebäude- zum Stadtteil-Energiemanagement. - In: VDE-Kongress 2016, (2016), insges. 6 S.

Beyer, Daniel; Ruhe, Stephan; Bretschneider, Peter; Ehrhardt, Jens;
Results of a Monte Carlo based risk analysis on the impact of PEVs to the distribution grid. - In: 2016 IEEE International Energy Conference (ENERGYCON), ISBN 978-1-4673-8463-6, (2016), insges. 7 S.

This paper presents the study results of possible plug in electric vehicle (PEV) integration potentials in a commonly occurring rural distribution grid in Germany as a worst case scenario simulation. This worst case consideration means, that all the simulations are running at a fix defined load point at one specific moment in time. After the simulation case definition, like e.g. the so called "strong load case", the different in Germany commonly occurring PEV-classes are connected step by step to the 0,4 kV grid. So it is possible to compute the maximum integrable amount of PEVs (of each class) in dependency on the grid operation risks. As the core method the conventional Monte Carlo approach were used in a self-implemented characteristic.



https://doi.org/10.1109/ENERGYCON.2016.7514069
Zimmermann, Tobias; Klaiber, Stefan; Bretschneider, Peter;
A Market System Operator as a new role to balance the distribution grid and to coordinate market and grid operations. - In: 2016 IEEE International Energy Conference (ENERGYCON), ISBN 978-1-4673-8463-6, (2016), insges. 6 S.

An approach for an extended market grid operation is introduced in this paper. Therefore a Market System Operator as a new role in the electricity economy is defined and an extended ENTSO-e scheduling system is developed. Additionally a traffic light system for distribution grids is integrated. The special part of renewable energy sources with their specific character is taken into account. The aim is to retain a sustainable and reliable electricity supply system in Germany while and after the energy transition and to keep a free and liberalized electricity market as per specification from EU commission and German government. The approach helps to extend existing procedures without revising existing role models. This strengthens stakeholders and system operators as well as their communication.



https://doi.org/10.1109/ENERGYCON.2016.7514065
Rublack, Liane; Warweg, Oliver; Bretschneider, Peter; Freund, Sebastian; Bieber, Mathilde;
Sensitivity analysis of adiabatic compressed air energy storage. - In: IEEE PES Innovative Smart Grid Technologies, Europe, ISBN 978-1-5090-3358-4, (2016), insges. 6 S.

The increasing use of fluctuating renewable energy represents a challenge for the German electricity market. Electricity storage plants can provide flexibility to the energy system and the development of new, efficient and economical energy storage technologies is of great importance. In this paper, the use of compressed air energy storage plants in the German electricity market is simulated and a sensitivity analysis is carried out. The optimization of the system is done to minimize at each time step the total system costs. The analysis shows the influence of storage plant parameters such as efficiency, storage capacity and natural gas usage on the dispatch and operation hours. It is performed over one year and for three different future scenarios. The results indicate that utilization of storage plants will increase in each scenario considered from 2025 to 2035 but remains in most cases significantly below the maximum capacity of 3000 h/a power generation. While the operation of storage plants lowers the total electricity cost, earnings per plant and profits are not necessarily positive: the wholesale price signals do not create enough revenues to justify the investment in CAES plants.



https://doi.org/10.1109/ISGTEurope.2016.7856246
Arnoldt, Alexander; Dahn, Nikolas; Ruhe, Stephan; Warweg, Oliver; Wenk, Tanja; Bretschneider, Peter;
Abschlussbericht intelligentes Last und Lademanagement : Teilvorhaben des Fraunhofer IOSB-AST im Verbundvorhaben sMobiliTy
Revision: 1.0. - [Ilmenau] : Fraunhofer IOSB, Institutsteil Angewandte Systemtechnik AST. - 1 Online-Ressource (170 Seiten, 7,2 MB)Förderkennzeichen BMBF 01ME12073. - Verbund-Nummer 01132985

https://edocs.tib.eu/files/e01fb16/872858774.pdf
Platzer, Werner; Boie, Inga; Ragwitz, Mario; Kost, Christoph; Thoma, Jürgen; Vogel, Alex; Fluri, Thomas; Pfeiffer, Wulf; Burmeister, Frank; Tham, Nils; Pudlik, Martin; Bohn, Sven; Agsten, Michael; Bretschneider, Peter; Westermann, Dirk; Kranzer, Dirk; Schlegl, Thomas
Fraunhofer Zukunftsthemen "SUPERGRID" : Supergrid - Ansatz für die Integration von Erneuerbaren Energien in Europa und Nordafrika. - Freiburg : Fraunhofer-Institut für Solare Energiesysteme ISE. - 37 Seiten
Konotop, Irina; Waczowicz, Simon; Klaiber, Stefan; Bretschneider, Peter; Mikut, Ralf; Westermann, Dirk;
Investigation and mathematical modelling of the impact of incentive signals to consumers on their consumption, load forecast and network operation. - In: IET generation, transmission & distribution, ISSN 1751-8695, Bd. 10 (2016), 9, S. 2138-2146

http://dx.doi.org/10.1049/iet-gtd.2015.1175
Waczowicz, Simon; Reischl, Markus; Klaiber, Stefan; Bretschneider, Peter; Konotop, Irina; Westermann, Dirk; Hagenmeyer, Veit; Mikut, Ralf;
Virtual storages as theoretically motivated demand response models for enhanced smart grid operations. - In: Energy technology, ISSN 2194-4296, Bd. 4 (2016), 1, S. 163-176

http://dx.doi.org/10.1002/ente.2015003184201
Boie, Inga; Kost, Christoph; Bohn, Sven; Agsten, Michael; Bretschneider, Peter; Snigovyi, Oleksandr; Pudlik, Martin; Ragwitz, Mario; Schlegl, Thomas; Westermann, Dirk;
Opportunities and challenges of high renewable energy deployment and electricity exchange for North Africa and Europe - scenarios for power sector and transmission infrastructure in 2030 and 2050. - In: Renewable energy, ISSN 1879-0682, Bd. 87 (2016), Part 1, Seite 130-144

https://doi.org/10.1016/j.renene.2015.10.008
Weigand, Moritz; Agsten, Michael; Beyer, Daniel; Bohn, Sven; Bretschneider, Peter;
Einfluss künftiger Elektromobilität auf städtische Verteilernetze. - In: Energiewirtschaftliche Tagesfragen, ISSN 0013-743X, Bd. 65 (2015), 3, S. 70-73

Kummerow, André; Klaiber, Stefan; Nicolai, Steffen; Bretschneider, Peter;
Recursive analysis and forecast of superimposed generation and load time series. - In: Proceedings of International ETG Congress 2015, ISBN 978-3-8007-4121-2, (2015), S. 198-203

The scope of this survey is the forecast of mixed power time series characterized by the superimposition of various generation and load components. This can support planning tasks for operational management in grid systems with high proportion of renewable energies. For this study real measured data of several time series as well as measured and forecasted values of weather and PV feed-in data are used. Within the forecast process the number of signal components is stepwise reduced by repetitive analysis and model construction. By that a component-wise modelling is pursued. Different model variations are compared and first results are shown.



https://ieeexplore.ieee.org/document/7388481
Waczowicz, Simo; Reischl, Markus; Hagenmeyer, Veit; Mikut, Ralf; Klaiber, Stefan; Bretschneider, Peter; Konotop, Irina; Westermann, Dirk
Demand response clustering - how do dynamic prices affect household electricity consumption?. - In: 2015 IEEE Eindhoven PowerTech, (2015), insges. 6 S.

https://doi.org/10.1109/PTC.2015.7232493
Klaiber, Stefan; Bretschneider, Peter; Waczowicz, Simon; Mikut, Ralf; Konotop, Irina; Westermann, Dirk
A contribution to the load forecast of price elastic consumption behaviour. - In: 2015 IEEE Eindhoven PowerTech, (2015), insges. 6 S.

https://doi.org/10.1109/PTC.2015.7232548
Fischer, Benjamin; Karstädt, Frank; Beyer, Daniel; Nicolai, Steffen; Bretschneider, Peter;
Redox-Flow-Batterie als Stellglied für regelungstechnische Aufgabenstellungen im elektrischen Niederspannungsnetz. - In: Automation 2014, (2014), S. 1239-1250

Ritter, Sabine; Naumann, Steffi; Klaiber, Stefan; Warweg, Oliver; Bretschneider, Peter;
Influence of accuracy in energy system modeling to profitability analysis of pumped-storage power plants. - In: 2014 11th International Conference on the European Energy Market (EEM), ISBN 978-1-4799-6095-8, (2014), insges. 5 S.

In this paper, a fundamental optimization model containing the German generation and energy storage system has been used to analyze the profitability of pumped-storage power plants within the German energy market. As a result of the optimization, energy prices are calculated based on the power plants' marginal costs according to the merit order principle. This paper demonstrates the influence of increasing model accuracy in the underlying optimization model on the optimization results, particularly regarding the profitability of pumped-storage power plants.



https://doi.org/10.1109/EEM.2014.6861287
Boie, Inga; Pudlik, Martin; Ragwitz, Mario; Sensfuß, Frank; Bohn, Sven; Agsten, Michael; Bretschneider, Peter; Westermann, Dirk
Scenarios for renewable energy deployment in North African countries and electricity exchange with Europe - a modelbased analysis for 2050. - In: International Journal of Smart Grid and Clean Energy, ISSN 2315-4462, Bd. 3 (2014), 3, S. 299-306

http://dx.doi.org/10.12720/sgce.3.3.299-306
Waczowicz, Simon; Klaiber, Stefan; Bretschneider, Peter; Konotop, Irina; Westermann, Dirk; Reischl, Markus; Mikut, Ralf
Data mining to analyse the effects of price signals on household electricity customers :
Data Mining zur Analyse der Auswirkungen von Preissignalen auf Haushaltsstromkunden. - In: Automatisierungstechnik, ISSN 2196-677X, Bd. 62 (2014), 10, S. 740-752

http://dx.doi.org/10.1515/auto-2014-1108
Nicolai, Steffen; Bretschneider, Peter; Westermann, Dirk;
Hierarchische Speichereinsatzoptimierung : mit einem Realisierungsbeispiel auf der Insel Pellworm. - In: Automatisierungstechnik, ISSN 2196-677X, Bd. 62 (2014), 5, S. 364-374

https://doi.org/10.1515/auto-2013-1076
Klaiber, Stefan; Warweg, Oliver; Nicolai, Steffen; Bretschneider, Peter;
Evaluation of energy storages for the optimization of wind energy integration based upon different forecast errors scenarios. - In: Proceedings, 12th Wind Integration Workshop, International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants, 22 - 24 October 2013, London, UK, (2013), S. 371-376

Beyer, Daniel; Fischer, Benjamin; Karstädt, Frank; Arnoldt, Alexander; Agsten, Michael; Bretschneider, Peter;
Analyse des regional und zeitlich aufgelösten Energieausgleichsbedarfs in Deutschland zur Kompensation volatiler Energieerzeugung unter Berücksichtigung der Leitungsbelastung im Übertragungsnetz. - In: Internationaler ETG-Kongress 2013, (2013), insges. 7 S.

Waczowicz, Simon; Klaiber, Stefan; Bretschneider, Peter; Konotop, Irina; Westermann, Dirk; Mikut, Ralf
Virtuelle Speicher als adaptierbare Verbrauchermodelle zur Lastprognose und Betriebsführung in Verteilnetzen. - In: Proceedings, (2013), S. 109-128

http://dx.doi.org/10.5445/KSP/1000036887
Klaiber, Stefan; Bretschneider, Peter; Waczowicz, Simon; Mikut, Ralf; Konotop, Irina; Westermann, Dirk
Intelligente Prognoseverfahren für beeinflusstes Verbrauchsverhalten in Energiesystemen. - In: Proceedings, (2013), S. 93-107

http://dx.doi.org/10.5445/KSP/1000036887
Bohn, Sven; Agsten, Michael; Waldhorst, Oliver; Mitschele-Thiel, Andreas; Westermann, Dirk; Bretschneider, Peter
An ICT architecture for managed charging of electric vehicles in smart grid environments. - In: Journal of Engineering, ISSN 2314-4912, 2013, Article ID 989421, insges. 11 S.

https://doi.org/10.1155/2013/989421
Illing, Björn; Bretschneider, Peter; Westermann, Dirk;
Flat-rate pricing for grid usage in distribution grids. - In: 10th International Conference on the European Energy Market (EEM), 2013, ISBN 978-1-4799-2008-2, (2013), insges. 6 S.

https://doi.org/10.1109/EEM.2013.6607372
Warweg, Oliver; Ifland, Mike; Käßler, Martin; Bretschneider, Peter
Stand der Smart Metering-Technologie. - In: Smart Metering, (2013), S. 61-78

http://www.db-thueringen.de/servlets/DocumentServlet?id=21399
Westermann, Dirk; Döring, Nicola; Bretschneider, Peter
Smart Metering : zwischen technischer Herausforderung und gesellschaftlicher Akzeptanz - interdisziplinärer Status Quo
[Online-Ausg.]. - Ilmenau : Univ.-Verl. Ilmenau, 2013. - Online-Ressource (PDF-Datei: 237 S., 7,27 MB). - (Ilmenauer Beiträge zur elektrischen Energiesystem-, Geräte- und Anlagentechnik ; 5)Parallel als Druckausg. erschienen

Die Energiewende, also die Umstellung der elektrischen Energieversorgung auf überwiegend regenerative Energieerzeugungsanlagen, erfordert grundsätzliche und umfangreiche Änderungen im Versorgungssystem. Ein Baustein stellt die aktive Involvierung der privaten Endverbraucher dar, die mittels Smart-Metering-Technologie eine neue Schnittstelle zum Versorgungssystem erhalten. Das Forschungsprojekt RESIDENS (effizienteRe Energienutzung durch Systemtechnische Integration Des privaten ENdabnehmerS) ist eine Kooperation zwischen Ingenieuren und Sozialwissenschaftlern aus Ilmenau und Jena und untersucht die Potentiale von Smart Metering aus Netz- und Kundenperspektive. In dieser Publikation werden die technischen, juristischen und sozialwissenschaftlichen Ergebnisse des Projekts, als auch praktische Erfahrungen, die mit der Anwendung der Technik im Zusammenhang stehen, erläutert.



http://www.db-thueringen.de/servlets/DocumentServlet?id=21399
Bullinger, Hans-Jörg; Dötsch, Christian; Bretschneider, Peter;
Smart grids - the answer to the new challenges of energy logistics?. - In: CESifo DICE report, ISSN 1613-6373, Bd. 10 (2012), 3, S. 29-35

https://www.econstor.eu/handle/10419/167084
Nicolai, Steffen; Ritter, Sabine; Beyer, Daniel; Bretschneider, Peter;
A hierarchical management approach for electrical energy storages in distribution grids. - In: IEEE Power and Energy Society general meeting, 2012, ISBN 978-1-4673-2727-5, (2012), S. 1-8

In this paper an approach for optimal management of electrical energy storages in distribution grid with high share of renewable energies is presented. Within this approach a multi stage combination of a Storage Scheduling as a long term optimization and a Storage Dispatch as the short term consideration is applied. For this a reference distribution grid with realistic low voltage level structures is applied. The modeling of this reference grid is presented for several levels of the management approach. By means of currently assumed development data for energy generation from renewable fluctuating sources scenarios for the reference distribution grid are developed and the presented approach is investigated in numerical case studies. In conclusion, results of the model calculations are analyzed.



https://doi.org/10.1109/PESGM.2012.6345308
Beyer, Daniel; Karstädt, Frank; Fischer, Benjamin; Agsten, Michael; Bretschneider, Peter;
Electrical power and energy compensation demand with regard to topological restrictions of German mains for an efficient operation of smart grids. - In: 3rd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies (ISGT Europe), 2012, ISBN 978-1-4673-2595-0, (2012), S. 1-8

This paper introduces two newly developed gird models, which are topological orientated and make it capable to study the impact of decentraliced volatile energy generation on the German transmission and distribution grid. With these models it is possible to determine the electrical power and energy compensation demand of the German mains for different energy studies and at the same time investigations regarding to the topological restrictions of the electrical grid and the primary operating resources can be made. The methodical procedure of creating the German electrical transmission and distribution grid models is presented and the database is described. A case studie, for an exemplary region in Germany with the two topological orientated grid models, is performed for different time horizons of an energy lead scenario and shows the electrical power and energy compensation demand, as well as it is showing the restrictions of the grid and the operating resources. It is made clear that the developed models and approaches can be used for deriving optimal locations for energy storages and also to determine the dimensioning of these storages. Furthermore the developing and validation of smart energy management systems can be enhanced by integrating and simulating within the proposed models.



https://doi.org/10.1109/ISGTEurope.2012.6465660
Illing, Björn; Bretschneider, Peter;
Flat-rate pricing for grid usage in distribution grids. - In: 2012 International Conference on Smart Grid Technology, Economics and Policies (SG-TEP), (2012), S. 1-4

The increasing change of the electrical power system caused by the influence of renewable energy on the power flow in the distribution grid mainly affects the distribution system operators. They have to cope with the changed power flow as well as to account for congestions. Therefore they have to take influence on these power flows. One opportunity is represented by variable grid fees which enable a causation-based allocation of grid costs and a higher predictability concerning power system planning. According to the development of pricing in the communication sector flat-rate pricing for grid usage seems to be an appropriate solution. Therefore an approach based on a flatrate tariff with an additional usage-sensitive component is developed.



https://doi.org/10.1109/SG-TEP.2012.6642367
Illing, Björn; Bretschneider, Peter; Westermann, Dirk;
Causation-based approaches of calculating distribution grid fees to integrate renewable energy. - In: International Conference on Electronics, Information and Communication Engineering, (2012), S. 175-178

https://doi.org/10.1115/1.859971.paper32
Petsch, Mathias; Nissen, Volker; Termer, Frank; Flachsenberger, Iris; Schorcht, Hagen; Warweg, Oliver; Werner, Markus; Bretschneider, Peter
Der Einfluss von Smart Metern auf die Geschäftsprozesse kommunaler Energieversorger. - Ilmenau : Techn. Univ., Inst. für Wirtschaftsinformatik. - Online-Ressource (PDF-Datei: III, 18 S., 866 KB). - (Ilmenauer Beiträge zur Wirtschaftsinformatik ; 2012,2) ISBN 978-3-938940-43-3
Publ. entstand im Rahmen der Veranst.: Informatik 2012 : 42. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 16. bis 21.9.2012, TU Braunschweig

http://nbn-resolving.de/urn:nbn:de:gbv:ilm1-2012200300
Warweg, Oliver; Bretschneider, Peter; Schmelzer, Knut; Ifland, Mike; Westermann, Dirk
Auswirkungen zeitvariabler Stromtarife in der Bilanzkreisabrechnung von Haushaltskunden. - In: Smart Grid, (2012), insges. 6 S.

Arnoldt, Alexander; Bretschneider, Peter;
Input model identifying techniques for 48h local wind power forecast. - In: Proceedings of the IASTED International Conference on Power and Energy Systems and Applications, (2011), S. 267-274

Warweg, Oliver; Schaller, Falk; Ritter, Sabine; Bretschneider, Peter;
Technical and regulatory challenges for the integration of electric vehicles into the energy system. - In: 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies (ISGT Europe), 2011, ISBN 978-1-4577-1422-1, (2011), S. 1-8

In this contribution the technical and regulatory challenges for the integration of electric vehicles into the energy system are identified. An investigation on the impact of electric vehicles for the medium voltage and subsequently for the low voltage distribution grid is realized. Therefore a benchmark distribution grid is designed based on existing benchmarks for medium voltage grids. As a result of the following simulation it is necessary to establish a charging management for electric vehicles for a secure integration. After the technical conditions the regulatory framework is considered to analyze whether a charging management operated by the grid operator can be established and how electric vehicles should be integrated into the current role model. Finally an optimization for a charging management operated by an energy retailer under consideration of grid parameters is analyzed.



https://doi.org/10.1109/ISGTEurope.2011.6162657
Nicolai, Steffen; Ritter, Sabine; Beyer, Daniel; Bretschneider, Peter;
Optimal management of electrical energy storages for the integration of decentralized fluctuating generation in distribution grids. - In: 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies (ISGT Europe), 2011, ISBN 978-1-4577-1422-1, (2011), S. 1-8

In this paper an approach for optimal management of electrical energy storages in distribution grids is presented. Thereby, the challenge for distribution grids caused by increasing share of decentralized generation with fluctuating feeding character is especially taken into consideration. A hierarchical approach for operational management of energy storages is presented. For this a reference distribution grid with realistic low voltage level structures is applied. The modeling of this reference grid is presented for the several levels of the management approach. By means of currently assumed development data for energy generation from renewable fluctuating sources scenarios for the reference distribution grid are developed and the presented approach is investigated in numerical case studies. In conclusion, the results of the model calculations are analyzed.



https://doi.org/10.1109/ISGTEurope.2011.6162729
Schmid, Stefan; Schaarschmidt, Lars; Bretschneider, Peter
Pumpspeicherkataster Thüringen : Ergebnisse einer Potenzialanalyse
[Online-Ausg.]. - [Erfurt], 2011. - Online-Ressource (PDF-Datei: 33 S., 7,41 MB)
http://nbn-resolving.de/urn:nbn:de:gbv:27-20120504-135646-3
Illing, Björn; Bretschneider, Peter; Westermann, Dirk
Berechnungsansatz für variable Netznutzungsentgelte zum Einfluss auf den Lastverlauf in der Verteilernetzebene. - In: Internationaler ETG-Kongress 2011, ISBN 978-3-8007-3376-7, 2011, P39, insges. 8 S.

Ritter, Sabine; Rüttinger, Hannes; Ritter, Sebastian; Bretschneider, Peter; Westermann, Dirk;
New approaches for smart grid requirements: grid protection and optimization of distribution grid operation. - In: IEEE Power and Energy Society general meeting, 2011, ISBN 978-1-4577-1001-8, (2011), S. 1-7

https://doi.org/10.1109/PES.2011.6038930
Arnoldt, Alexander; König, Stefan; Mikut, Ralf; Bretschneider, Peter;
Einsatz von Data-Mining-Verfahren zur Einspeisungsprognose für Windenergieanlagen. - In: Automation 2010, (2010), S. 99-102

Arnoldt, Alexander; König, Stefan; Mikut, Ralf; Bretschneider, Peter;
Application of data mining methods for power forecast of wind power plants. - In: Proceedings, 9th International Workshop on the Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants, (2010), insges. 6 S.

Westermann, Dirk; Nicolai, Steffen; Bretschneider, Peter; Schlegel, Steffen;
Mid size energy storages in distribution networks - optimal sizing and management. - In: 16th Power Systems Computation Conference 2008, (2010), S. 979-985

Mattern, Christopher; Bretschneider, Peter;
Predicting pattern-based time series using models derived from statistical data compression. - In: Crossing borders within the ABC, (2010), S. 167-172

https://www.db-thueringen.de/receive/dbt_mods_00016930
Ritter, Sabine; Bretschneider, Peter;
Stochastic optimization of power supply processes in liberalized energy markets. - In: Crossing borders within the ABC, (2010), S. 156-161

https://www.db-thueringen.de/receive/dbt_mods_00016928
Klaiber, Stefan; Nicolai, Steffen; Bretschneider, Peter;
Acquisition of grid losses using intelligent forecast methods. - In: Crossing borders within the ABC, (2010), S. 150-155

https://www.db-thueringen.de/receive/dbt_mods_00016926
Ritter, Sebastian; Ritter, Sabine; Rüttinger, Hannes; Nicolai, Steffen; Bretschneider, Peter;
Optimal planning and operation of power supply in liberalized energy markets. - In: Crossing borders within the ABC, (2010), S. 144-149

https://www.db-thueringen.de/receive/dbt_mods_00016925
Rüttinger, Hannes; Bretschneider, Peter;
IuK-Energie-Labor - Forschungs- und Entwicklungslabor für elektrische Energiesysteme der nächsten Generation. - In: Automation 2009, (2009), S. 51-54

Bretschneider, Peter;
Lineare und nichtlineare Vorhersageverfahren für den Strom- und Gasbedarf. - In: Automation 2009, (2009), S. 45-49

Bretschneider, Peter; Ament, Christoph;
Methoden zur optimalen Betriebsführung elektrischer Energiesysteme mit dezentralen fluktuierenden Erzeugern. - In: Programm [und] Kurzfassungen, (2009), S. 60-61

Westermann, Dirk; Bretschneider, Peter; Rüttinger, Hannes;
A novel approach for distribution system operation utilization state of the art communication technology. - In: PES '09, ISBN 978-1-4244-4240-9, (2009), insges. 6 S.

https://doi.org/10.1109/PES.2009.5275771
Rüttinger, Hannes; Bretschneider, Peter; Westermann, Dirk
IuK-Energie-Labor - Forschungs- und Entwicklungslabor für elektrische Energiesysteme der nächsten Generation. - In: Intelligente Netze, (2009), S. 281

Rüttinger, Hannes; Bretschneider, Peter; Westermann, Dirk
Intelligente Verteilnetze. - In: Intelligente Netze, (2009), S. 89

Westermann, Dirk; Nicolai, Steffen; Bretschneider, Peter;
Energy management for distribution networks with storage systems - a hierarchical approach. - In: Conversion and delivery of electrical energy in the 21st century, ISBN 978-1-4244-1905-0, (2008), S. 1-6

https://doi.org/10.1109/PES.2008.4596533
Ritter, Sebastian; Bretschneider, Peter;
Optimale Planung und Betriebsführung im liberalisierten Energiemarkt. - In: Proceedings, (2007), S. 260-267

http://nbn-resolving.de/urn:nbn:de:0072-70086
Fischer, Benjamin; Schaller, Falk; Yang, Shangdan; Nicolai, Steffen; Bretschneider, Peter;
Testbed for interaction analysis of energy systems and components in the low voltage domain :
Prüfstand zur Wechselwirkungsanalyse von Anlagen und Komponenten im Niederspannungsbereich. - In: International ETG Congress 2017, (2017), S. 387-392

Garcia, Elmar; Bretschneider, Peter; Rauschenbach, Thomas;
Vergleich nichtlinearer Vorhersagemodelle anhand von Referenzbeispielen. - In: Proceedings, (2006), S. 77-89

https://dx.doi.org/10.5445/KSP/1000005189
Bretschneider, Peter; Wernstedt, Jürgen;
Anforderungen und Entwurf von Managementsystemen für die deregulierte Energiewirtschaft. - In: Session 4-10, (2004), S. 79-84

Bretschneider, Peter; Rauschenbach, Thomas;
Ein Beitrag zur Vorhersage nichtlinearer stochastischer Signale. - In: Automatisierungstechnik, ISSN 2196-677X, Bd. 50 (2002), 7, S. 334-345

https://doi.org/10.1524/auto.2002.50.7.334
Bretschneider, Peter;
Ein Beitrag zur Vorhersage musterbasierter nichtlinearer stochastischer Signale. - Ilmenau : ISLE, 2002. - XVI, 129 S.. - (Automatisierungstechnik) : Zugl.: Ilmenau, Techn. Univ., Diss., 2002
ISBN 3-932633-72-5

Wernstedt, Jürgen; Eidt, Stephan; Bretschneider, Peter;
SAT-PROPHET - Energiemanagementsystem für den liberalisierten Markt. - In: Jahresbericht, Bd. 2000 (2001), S. 60-61

Bretschneider, Peter; Eidt, Stephan;
PROPHET HMS : Handelsmanagementsystem für den deregulierten Strommarkt. - In: Jahresbericht, Bd. 1999 (2000), S. 72-73

Rauschenbach, Thomas; Bretschneider, Peter
Pattern based forecast for load curves : method and experiences. - In: Intelligent forecasting systems for refineries and power systems, (2000), S. 65-69

Bretschneider, Peter; Wernstedt, Jürgen
Musterbasierte Vorhersagestrategien für Energiebedarf - Methoden und Praxiserfahrungen. - In: 45. Internationales Wissenschaftliches Kolloquium, (2000), S. 141-146

Bretschneider, Peter; Rauschenbach, Thomas; Wernstedt, Jürgen;
Forecast strategy using an adaptive fuzzy classification algorithm for load. - In: European Control Conference ECC '99, (1999), Paper F1069-1, 4 Seiten

Bretschneider, Peter; Eidt, Stephan;
Energiemanagementsystem PROPHET - Stromhandel im liberalisierten Energiemarkt. - In: Jahresbericht, Bd. 1998 (1998), S. 46-47

Bretschneider, Peter; Rauschenbach, Thomas; Wernstedt, Jürgen
Hybrid forecast strategy using an adaptive fuzzy classification algorithm. - In: Proceedings, (1998), S. 1916-1919

Bretschneider, Peter; Pfützenreuter, Torsten; Rauschenbach, Thomas; Wernstedt, Jürgen
DIMOVOR-Expert - ein modulares System zur Lösung von Diagnose-, Monitoring- und Vorhersageaufgaben. - In: [Vortragsreihen, (1997), S. 429-434

Rauschenbach, Thomas; Bretschneider, Peter; Wernstedt, Jürgen
Vorhersagestrategien unter Verwendung von musterbasierten Methoden. - In: [Vortragsreihen, (1997), S. 406-411

Bretschneider, Peter; Kuhn, Thomas; Wernstedt, Jürgen; Tiedt, H.
Prognosebasierte Online Einsatzplanung von Kraft-Wärmekopplungsanlagen mittels hierarchischer Optimierung. - In: Optimierung in der Energieversorgung II, (1997), S. 27-38