级联H桥整流器稳定运行区域和直流侧电压平衡策略的调节能力分析

doi:10.19595/j.cnki.1000-6753.tces.L80559

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Abstract It is important for cascaded H-bridge rectifier (CHBR) to analyze the steady-state operating region (SOR) and regulation capacity of voltage balance strategy. However, there is no widely applicable method to evaluate the regulation capacity of voltage balance strategy. This paper presents a general analytical method for SOR of CHBR based on phasor diagram. Meanwhile, an index of power imbalance is defined, and modulation index regulation of four-cells CHBR is used as an example. The mathematical expressions for CHBR are determined. Finally, the validity and effectiveness of the proposed analysis method are verified by the simulation and experiments on a four-cells CHBR.

Key words： Cascaded H-bridge rectifier steady-state operating region power deviation coefficient DC voltage balancing control strategies

Received: 30 June 2018 Published: 29 July 2019

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TM461

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	Wang Xin
	Wang Chenchen
	Gu Changbin

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Wang Xin,Wang Chenchen,Gu Changbin. Analysis about Steady-State Operating Region and Regulation Capacity of Voltage Balance Strategy for Cascaded H-Bridge Rectifier[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 2970-2979.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L80559 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I14/2970

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