Title :
Thermal-electrical modeling and simulation of resonantly operated DC-DC converters based on extended describing function method
Author :
Jianxun Lv ; Zhiyu Cao ; Frohleke, Norbert ; Bocker, Joachim ; Haiwen Yuan ; Hanguang Mi
Author_Institution :
Power Electron. & Electr. Drives, Paderborn Univ., Paderborn, Germany
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
Due to the very large difference between electrical and thermal time constants, stimulation for resonantly operated DC-DC converters using physical or ideal switching model is very time-consuming or impossible with limited computational resources. In order to overcome this problem a novel thermal-electrical averaging model of resonantly operated DC-DC converters is proposed in this contribution. The electrical model is based on extended describing function method. All required parameters for the thermal model can be obtained from datasheets. As examples thermal-electrical models of series-parallel resonant converters with LC- and C-type output filters are given and verified by comparison with a standard simulation tool. The thermal-electrical modeling procedure proposed in this contribution can of course also be applied for other types of resonant converters.
Keywords :
DC-DC power convertors; resonant power convertors; LC-type output filters; electrical time constants; extended describing function method; resonantly operated DC-DC converters; series-parallel resonant converters; switching model; thermal time constants; thermal-electrical averaging model; thermal-electrical modeling; Computational modeling; Insulated gate bipolar transistors; Integrated circuit modeling; Inverters; Mathematical model; Semiconductor device modeling; Switches; DC power supply; Modeling; Resonant converter; Simulation;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
