Michael Winter
Institute for Energy Conversion Technology, Technische Universitaet Muenchen, Germany
Sascha Moser
Institute for Energy Conversion Technology, Technische Universitaet Muenchen, Germany
Stefan Schoenewolf
Institute for Energy Conversion Technology, Technische Universitaet Muenchen, Germany
Julian Taube
Institute for Energy Conversion Technology, Technische Universitaet Muenchen, Germany
Hans-Georg Herzog
Institute for Energy Conversion Technology, Technische Universitaet Muenchen, Germany
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http://dx.doi.org/10.3384/ecp15118479Published in: Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015
Linköping Electronic Conference Proceedings 118:51, p. 479-484
Published: 2015-09-18
ISBN: 978-91-7685-955-1
ISSN: 1650-3686 (print), 1650-3740 (online)
Nowadays, power electronic systems play a major role in almost every large system. Due to the high switching frequencies, the simulation of these devices is computationally very expensive and not suitable for system simulation. Average models of these power electronic systems are needed to simulate the basic terminal characteristics of these devices without the need to simulate every switching operation. This paper describes a Modelica implementation of a synchronous half-bridge converter for the use in an automotive power net simulation as well as in real-time environments. The model takes into account the losses in the semiconductors as well as the dynamic behavior of the converter. For the parametrization of the model, only the switching frequency and some values from the datasheets of the used components are required. To validate the proposed model, an equivalent SPICE model is developed, serving as a reference model. The dynamic behavior of the two models is compared using step responses of the load current. The relative deviation of the model’s output voltage compared to the SPICE simulation is less than 2%. Furthermore, also the energetic behavior was investigated, and it is shown that the proposed model provides good results for a wide operating area.
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