Review of Voltage Balancing Techniques for Series-Connected SiC Metal–Oxide–Semiconductor Field-Effect Transistors

Lucheng Sun (), Mingzhong Qiao, Yihui Xia, Bo Wu and Fulin Chen
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Lucheng Sun: The College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
Mingzhong Qiao: The College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
Yihui Xia: The College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
Bo Wu: The College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
Fulin Chen: State Grid Yuncheng Power Supply Co., Yuncheng 044000, China

Energies, 2024, vol. 17, issue 23, 1-24

Abstract: Power devices in series are low-voltage power devices used in medium- and high-voltage applications in a more direct program. However, when power devices in series are used, because of their electrical performance parameters or external circuit conditions, there are unique short-circuit voltage imbalances, a serious threat to the safety of the device. The article first summarizes the research status and characteristics of the four models of SiC MOSFETs based on the domestic and international research on the models of SiC MOSFETs in recent years; second, the voltage balancing technology of series-connected SiC MOSFETs is sorted out and summarized, and then the driving circuits of SiC MOSFETs are sorted out and summarized. Again, several voltage balancing techniques reviewed are compared in six different aspects: cost, modularity, complexity, speed of voltage balancing, losses, and effectiveness of voltage balancing. Finally, an outlook of voltage balancing techniques for series SiC MOSFETs is provided.

Keywords: silicon carbide metal–oxide–semiconductor field-effect transistors; voltage balancing technology; device in series connection; mathematical model; drive circuit (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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