适用于动态电压恢复器的最小能量柔性切换控制策略

doi:10.19595/j.cnki.1000-6753.tces.180726

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Abstract The minimum energy compensation strategy for dynamic voltage restorer (DVR) can effectively reduce the output of active power and prolong the compensation duration. The grid voltage sag is often accompanied by phase angle jumping, and the traditional minimum energy compensation also causes phase angle jumping in load voltage when grid voltage sag and recovery. Therefore, a minimum energy soft-switching control strategy is proposed, which ensures DVR smooth into and smooth out the minimum energy compensation. Thus, it can solve the problem of load voltage phase angle jumping as well as reducing the output of active power. In addition, taking into account the maximum output capability of DVR, the reference voltage can be dynamically adjusted within the limit level during the compensation. The simulation and experimental results verify the correctness of the theoretical analysis.

Key words： Dynamic voltage restorer minimum energy compensation phase angle jumping soft-switching

Received: 25 April 2018 Published: 29 July 2019

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TM464

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	Articles by authors
	Tu Chunming
	Sun Yong
	Guo Qi
	Jiang Fei
	Zhang Li

Cite this article:

Tu Chunming,Sun Yong,Guo Qi等. The Minimum Energy Soft-Switching Control Strategy for Dynamic Voltage Restorer[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 3035-3045.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180726 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I14/3035

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