EMC research of new energy vehicle based on four-leg inverter

Kaijie Yu; Jiujian Chang

doi:10.1117/12.3008703

27 October 2023 EMC research of new energy vehicle based on four-leg inverter

Kaijie Yu, Jiujian Chang

Proceedings Volume 12922, Third International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2023); 1292219 (2023) https://doi.org/10.1117/12.3008703
Event: The Third International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2023), 2023, Xiamen, China

Abstract

To address the problem of excessive common mode voltage at the output of permanent magnet synchronous motor for new energy vehicles under high voltage platform, which is likely to cause electromagnetic interference to other electronic devices, this paper proposes a method to suppress common mode voltage using model predictive current control on the inverter circuit of four legs. Firstly, the correspondence between different switching vectors and common- mode voltage is derived, and the fourth leg is decoupled from the other three legs. The control is simplified by optimizing the vector selection, while achieving the common-mode voltage suppression to essentially zero. Then MPCC is used to track current, improving the THD of the load current, and a penalty function is added to reduce the switching frequency in the cost function. Finally, through double closed-loop simulation of the electric drive circuit in MATLAB, it is confirmed that the proposed method in this paper can effectively suppress the common-mode voltage, while improving the quality of the load current, reducing the switching frequency, and effectively suppressing electromagnetic interference.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kaijie Yu and Jiujian Chang "EMC research of new energy vehicle based on four-leg inverter", Proc. SPIE 12922, Third International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2023), 1292219 (27 October 2023); https://doi.org/10.1117/12.3008703

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