基于三相电流型五电平整流器的空间矢量脉宽调制算法

doi:10.19595/j.cnki.1000-6753.tces.191449

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Abstract The multilevel current source rectifier (MCSR) consists of multiple paralleled three-phase current source bridge rectifiers. If the traditional space vector pulse width modulation (SVPWM) method is used, it involves a lot of trigonometric functions, which affects the data processing efficiency of the controller. Therefore, a space vector pulse width modulation method based on three-phase MCSR in 60° coordinate system is proposed, and the calculation process of basic vector and action time is simplified effectively. At the same time, a method for reasonably distributing the switching time and sequence of the redundant switch is proposed to balance dc current. Thus, the current balance inductance at each switching period withstands a zero average voltage, thereby solving the current imbalance problem of the balance inductance and realizing the automatic average of DC current. Finally, the simulation and experiment of three-phase 5L-CSR were carried out to verify the proposed method.

Key words： Multilevel space vector pulse width modulation current source rectifier average inductor current balancing

Received: 09 November 2019

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TM461

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	Articles by authors
	Zhang Qiang
	Wu Yanfei
	Zhang Baoshun
	Zhang Yuchuan

Cite this article:

Zhang Qiang,Wu Yanfei,Zhang Baoshun等. Space Vector Pulse Width Modulation Strategy Based on Three-Phase Five-Level Current Source Rectifier[J]. Transactions of China Electrotechnical Society, 2020, 35(24): 5134-5141.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191449 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I24/5134

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