基于重复控制的单相分时复合级联光伏逆变器控制

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Abstract A combined control strategy of the PI and the repetitive control(RC)is proposed and applied into the time-sharing cascaded photovoltaic inverter system in order to improve the inverter’ s steady state performance. Based on the mathematical analysis on the internal model as well as on the discrete domain bode-plot, the underlying mechanism for the repetitive control to achieve zero static error compensation but result in one period delay is revealed. The proposed combined control strategy can precisely compensate the system with good phase/amplitude frequency performance. The experiments on an 1kW prototype prove the validity of the proposed control strategy.

Key words： Time-sharing photovoltaic inverter repetitive control discrete Bode plot

Received: 10 January 2010 Published: 07 March 2014

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TM464

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	Articles by authors
	Geng Pan
	Wu Weimin
	Ye Yinzhong
	Liu Yijian

Cite this article:

Geng Pan,Wu Weimin,Ye Yinzhong等. Single-Phase Time-Sharing Cascaded Photovoltaic Inverter Based on Repetitive Control[J]. Transactions of China Electrotechnical Society, 2011, 26(3): 116-122.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I3/116

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