考虑寄生电感的谐振开关电容变换器电压尖峰抑制

doi:10.19595/j.cnki.1000-6753.tces.L90231

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Abstract The resonant switched capacitor converter (RSCC) based on silicon carbide (SiC) devices is suitable for high operation efficiency and power density due to its soft switching characteristics. However, the high operation frequency makes it sensitive to the parasitic inductance, which may cause the voltage spike of switching devices. By analyzing the RSCC laminated busbar model, the equivalent circuit with parasitic inductance was built. The influence of parasitic inductance on the operating mode of the circuit was studied, and the relationship between the parasitic inductance and the voltage spike of the switching devices was derived. Accordingly, this paper proposed two voltage spike suppression methods for optimizing the laminated busbar model and the snubber capacitance. Simulation and experimental results verified the effectiveness and feasibility of the voltage spike suppression methods in this paper.

Key words： Resonant switched capacitor converter laminated busbar parasitic inductance voltage spike suppression

Received: 04 July 2020

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TM46

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	Articles by authors
	Liu Yan
	Yang Xiaofeng
	Yan Chengzhang
	Chen Qian
	Wen Piao
	Igarashi Seiki

Cite this article:

Liu Yan,Yang Xiaofeng,Yan Chengzhang等. Suppression of Voltage Spike in Resonant Switched Capacitor Converter Considering Parasitic Inductance[J]. Transactions of China Electrotechnical Society, 2021, 36(12): 2627-2639.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90231 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I12/2627

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