基于多采样率定时比较技术的并联有源滤波器

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Abstract Traditional timer comparison control method for shunt active power filter induces a low switching frequency and a large current ripple. To address these problems, this paper proposes a novel multirate sampling timer comparison control strategy, which can improve the system’s control performance. Output current of active power filter is sampled much faster than load current, and this method can implement multiple effective controls in every frame period, while reactive power and harmonic current reference values are calculated just once. The characteristics of system with the proposed controller are investigated and compared with the traditional strategy. Simulation and experiment results of double sampling rate control demonstrate the effectiveness of the proposed method.

Key words： Shunt active power filter timer comparison current ripple multirate sampling

Received: 29 October 2010 Published: 07 March 2014

PACS:	TM761
	TM48

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	Articles by authors
	Hou Rui
	Guo Weifeng
	Wu Jian
	Xu Dianguo

Cite this article:

Hou Rui,Guo Weifeng,Wu Jian等. Shunt Active Filter Based on Multirate Sampled Timer Comparison Technology[J]. Transactions of China Electrotechnical Society, 2011, 26(10): 123-128.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I10/123

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