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XU Xiaoxian,SHA Guanglin,ZHUANG Yuan,LIU Jinqi,WANG Cong.Model and Loss Analysis of Novel Switching of IGBT Modules[J].JOURNAL OF POWER SUPPLY,2018,16(6):152-158
Model and Loss Analysis of Novel Switching of IGBT Modules
Received:July 07, 2017  Revised:March 23, 2018
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DOI:10.13234/j.issn.2095-2805.2018.6.152
Keywords:insulated gate bipolar transistor(IGBT)  switching transient model  switching loss model  curve fitting
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AuthorInstitutionEmail
XU Xiaoxian School of Mechanical Electronic & Information Engineering, China University of Mining & TechnologyBeijing, Beijing , China 517324122@qq.com
SHA Guanglin China Electric Power Research Institute, Beijing , China
ZHUANG Yuan School of Mechanical Electronic & Information Engineering, China University of Mining & TechnologyBeijing, Beijing , China
LIU Jinqi School of Mechanical Electronic & Information Engineering, China University of Mining & TechnologyBeijing, Beijing , China
WANG Cong School of Mechanical Electronic & Information Engineering, China University of Mining & TechnologyBeijing, Beijing , China
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Abstract:
      To solve the problems in the switching model of insulated gate bipolar transistor(IGBT) modules, such as poor versality, low fitness, and difficulty in the continuous calculation of switch loss in real time, by analyzing the dynamic and static characteristics of IGBT modules during switching, the corresponding switching model and loss model of IGBT modules are established based on curve fitting theory, in which the effects of parameters like device junction temperature and stray inductance on the waveforms of instantaneous voltage and current during the switching of IGBT are considered. The switching model with high versatility is suitable for the circuit where the conduction currents of the switch in the adjacent switching cycles are not equal, while the loss model with high accuracy can accumulate the loss value of the calculated circuit in real time. Finally, the switching process was simulated based a Matlab/Simulink environment, and a double phase-shift DC-DC experimental prototype was established to conduct verifications. Simulation and experimental results verified the proposed switching model and loss model as well as their accuracies.
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