Modellierung und Parameteridentifikation für die Echtzeittemperaturregelung bei retinalen Lasertherapien :
Modeling and parameter identification for real-time temperature controlled retinal laser therapies. - In: Automatisierungstechnik, ISSN 2196-677X, Bd. 68 (2020), 11, S. 953-966
Laser photocoagulation is a widely used treatment for a variety of retinal diseases. Temperature-controlled irradiation is a promising approach to enable uniform heating, reduce the risks of over- or undertreatment, and unburden the ophthalmologists from a time consuming manual power titration. In this paper, an approach is proposed for the development of models with different levels of detail, which serve as a basis for improved, more accurate observer and control designs. To this end, we employ a heat diffusion model and propose a suitable discretization and subsequent model reduction procedures. Since the absorption of the laser light can vary strongly at each irradiation site, a method for identifying the absorption coefficient is presented. To identify a parameter in a reduced order model, an optimal interpolatory projection method for parametric systems is used. In order to provide an online identification of the absorption coefficient, we prove and exploit monotonicity of the parameter influence.
https://doi.org/10.1515/auto-2020-0074
Model predictive control without terminal constraints or costs for holonomic mobile robots. - In: Robotics and autonomous systems, ISSN 1872-793X, Bd. 127 (2020), 103468
https://doi.org/10.1016/j.robot.2020.103468
Towards multiobjective optimization and control of smart grids. - In: Optimal control, applications and methods, ISSN 1099-1514, Bd. 41 (2020), 1, S. 128-145
https://doi.org/10.1002/oca.2532
Towards price-based predictive control of a small-scale electricity network. - In: International journal of control, ISSN 1366-5820, Bd. 93 (2020), 1, S. 40-61
https://doi.org/10.1080/00207179.2017.1339329
Towards velocity turnpikes in optimal control of mechanical systems. - In: IFAC-PapersOnLine, ISSN 2405-8963, Bd. 52 (2019), 16, S. 490-495
https://doi.org/10.1016/j.ifacol.2019.12.009
Surrogate models for coupled microgrids. - In: Progress in industrial mathematics at ECMI 2018, (2019), S. 477-483
https://doi.org/10.1007/978-3-030-27550-1_60
Distributed optimization based control on the example of microgrids. - In: Computational intelligence and optimization methods for control engineering, (2019), S. 173-200
https://doi.org/10.1007/978-3-030-25446-9_8
Ersatzmodelle in bidirektionaler Optimierung gekoppelter Microgrids :
Surrogate models in bidirectional optimization of coupled microgrids. - In: Automatisierungstechnik, ISSN 2196-677X, Bd. 67 (2019), 12, S. 1035-1046
https://doi.org/10.1515/auto-2019-0075
Symmetry and motion primitives in model predictive control. - In: Mathematics of control, signals, and systems, ISSN 1435-568X, Bd. 31 (2019), 4, S. 455-485
https://doi.org/10.1007/s00498-019-00246-7
Towards optimal control of concentric tube robots in stereotactic neurosurgery. - In: Mathematical and computer modelling of dynamical systems, ISSN 1744-5051, Bd. 25 (2019), 6, S. 560-574
https://doi.org/10.1080/13873954.2019.1690004