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      • Analysis and Modeling for Stray Inductance of Commutation Circuit in Indirect Matrix Converter

        Yang Mei,Ziyu Liu,Shiheng Niu,Weichao Huang 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5

        Due to the complex commutation method and process of IMC, the stray inductances of the commutation circuit cannot be negligible, which induces voltage spikes while the power device operates at high frequency. As a result, the voltage stress of power devices is increased, which even causes over voltage damage of the power device. In order to estimate the stray inductance and select appropriate devices, the equivalent circuit model of the commutation circuit is constructed, and the main factors and the effect mechanism are analyzed based on the analysis of the commutation process and circuit of the IMC. A 3D model of the IMC is established by ANSYS software based on the electromagnetic calculation to extract the stray inductance of commutation circuit. The experimental results show that the accurately stray inductance parameters of the commutation circuit can be obtained by using the model, which demonstrates the validity of the analysis and modeling.

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