功率解耦后三相-单相矩阵变换器的闭环控制策略

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Abstract Regarding most of the three-phase to single-phase matrix converters (3-1 MC), three-phase currents are distorted and the capacity of power supply is usually twice as much as output power, because the inherent single-phase power component is directly coupled to the input side. This paper proposes a power decoupling circuit to compensate the impact of the pulsed power component. However, 3-1 MC power decoupling topology increases power switches which have effects on closed loop control strategy. Thus, a novel control system is proposed based on virtual dc link voltage feedback, using the decoupled small signal dynamic model which is deduced from the gradually simplified average signal model. In addition, the method for calculating PI parameters of the control system has been optimized. Finally, several experiments show that the unit power factor is achieved, and instantaneous current and output voltage can be adjusted with good dynamics.

Key words： Three-phase to single-phase matrix converter power decoupling small-signal model closed-loop control unit power factor

Received: 13 December 2013 Published: 30 November 2015

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TM46

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	Zhang Wenbin
	Ge Hongjuan
	Xu Yuxiang

Cite this article:

Zhang Wenbin,Ge Hongjuan,Xu Yuxiang. Control Strategy of Three-Phase to Single-Phase Matrix Converter with Power Decoupling Capacity[J]. Transactions of China Electrotechnical Society, 2015, 30(22): 100-107.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I22/100

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