Article | Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015 | Average Model of a Synchronous Half-Bridge DC/DC Converter Considering Losses and Dynamics
Göm menyn

Title:
Average Model of a Synchronous Half-Bridge DC/DC Converter Considering Losses and Dynamics
Author:
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
DOI:
10.3384/ecp15118479
Download:
Full text (pdf)
Year:
2015
Conference:
Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015
Issue:
118
Article no.:
051
Pages:
479-484
No. of pages:
6
Publication type:
Abstract and Fulltext
Published:
2015-09-18
ISBN:
978-91-7685-955-1
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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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.

Keywords: power electronics; average model; DC/DC converter losses; acausal modeling

Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Author:
Michael Winter, Sascha Moser, Stefan Schoenewolf, Julian Taube, Hans-Georg Herzog
Title:
Average Model of a Synchronous Half-Bridge DC/DC Converter Considering Losses and Dynamics
DOI:
http://dx.doi.org/10.3384/ecp15118479
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Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Author:
Michael Winter, Sascha Moser, Stefan Schoenewolf, Julian Taube, Hans-Georg Herzog
Title:
Average Model of a Synchronous Half-Bridge DC/DC Converter Considering Losses and Dynamics
DOI:
http://dx.doi.org/10.3384/ecp15118479
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