用于改善直流链电流纹波的电流源型整流器扇区优化调制策略

doi:10.19595/j.cnki.1000-6753.tces.201008

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Abstract Twelve sector space vector pulse width modulation (SVPWM) can shorten the commutation process and reduce the switching loss of current source rectifier. However, the DC link current ripple is large when the rectifier is in operation. The DC link current ripple can be reduced by increasing the inductance, but the inductance loss and size will increase accordingly, affecting the overall operation performance of the system. Therefore, this paper proposes an optimized modulation strategy for DC link current ripple in wide range operation. Secondly, based on the twelve-sector implementation mechanism and inductor current ripple generation principle, the current ripple expression is deduced and analyzed through the proposed current ripple analysis model, and the peak distribution of DC link current ripple of the two modulation strategies is compared and analyzed. Finally, the theoretical analysis and the effectiveness of the proposed method are verified through simulation and experimental prototype.

Key words： Current source rectifier optimized modulation DC link current ripple twelve sectors

Received: 11 August 2020

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TM461

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	Articles by authors
	Xiao Huihui
	Zhou Chenli
	Guo Qiang
	Li Shan
	Zhou Qingqing

Cite this article:

Xiao Huihui,Zhou Chenli,Guo Qiang等. Optimized Sector Modulation Strategy of Current Source Rectifier for DC-Link Current Ripple Reduction[J]. Transactions of China Electrotechnical Society, 2021, 36(24): 5250-5260.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201008 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I24/5250

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