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Article

A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter

by
Guozheng Zhang
1,
Shuo Wang
1,
Chen Li
2,
Xinmin Li
2 and
Xin Gu
1,*
1
School of Electrical Engineering, Tiangong University, Tianjin 300387, China
2
Advanced Electrical Equipment Innovation Center, Zhejiang University, Hangzhou 311107, China
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2023, 14(2), 53; https://doi.org/10.3390/wevj14020053
Submission received: 13 January 2023 / Revised: 8 February 2023 / Accepted: 8 February 2023 / Published: 15 February 2023
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Abstract

A modular multilevel converter (MMC) can generate different common-mode voltage (CMV) values due to the high-frequency changing of the switching state under various modulation strategies. The high-frequency dv/dt will produce common-mode current in the equivalent common-mode loop to the ground, which will affect the insulation and shorten the life of the equipment. To eliminate the effect of common-mode voltage on MMC operation, a common-mode voltage elimination strategy (0CMV-SVPWM) is proposed for five-level MMC space vector pulse width modulation (SVPWM) by using the vector that does not generate common-mode voltage as the reference vector in this paper. The proposed strategy is studied and analyzed by the rapid prototype development experimental system based on RT-LAB to verify the feasibility and effectiveness of the proposed strategy.
Keywords: modular multilevel converter; common-mode voltage; five-level space vector; zero common-mode voltage modular multilevel converter; common-mode voltage; five-level space vector; zero common-mode voltage

Share and Cite

MDPI and ACS Style

Zhang, G.; Wang, S.; Li, C.; Li, X.; Gu, X. A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter. World Electr. Veh. J. 2023, 14, 53. https://doi.org/10.3390/wevj14020053

AMA Style

Zhang G, Wang S, Li C, Li X, Gu X. A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter. World Electric Vehicle Journal. 2023; 14(2):53. https://doi.org/10.3390/wevj14020053

Chicago/Turabian Style

Zhang, Guozheng, Shuo Wang, Chen Li, Xinmin Li, and Xin Gu. 2023. "A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter" World Electric Vehicle Journal 14, no. 2: 53. https://doi.org/10.3390/wevj14020053

APA Style

Zhang, G., Wang, S., Li, C., Li, X., & Gu, X. (2023). A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter. World Electric Vehicle Journal, 14(2), 53. https://doi.org/10.3390/wevj14020053

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