一种有源电力滤波器的改进自适应谐波检测算法

doi:10.19595/j.cnki.1000-6753.tces.181217

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Abstract Harmonic detection is the key of active power filter (APF), which is the basis of ensuring the accurate compensation for harmonics by APF. Harmonic detection algorithm based on adaptive filtering can dynamically adjust step factor and is widely used in APF. The performance of adaptive filtering is determined by adaptive algorithm that needs to balance steady-state accuracy and dynamic performance. In this paper, the load circuit characteristics of APF main circuit are analyzed. Combined with the least mean square (LMS), an improved adaptive harmonic detection algorithm is proposed based on the load current characteristics to ensure that APF has better steady-state accuracy in steady state and has a faster response speed when mutation happens. Finally, the experimental platform is built to verify the proposed harmonic detection algorithm. The experimental results verify the effectiveness of the proposed algorithm.

Key words： Active power filter harmonic detection adaptive filtering the least mean square variable step-size factor

Received: 13 July 2018 Published: 30 October 2019

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TM761

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	Articles by authors
	Zhang Jianzhong
	Geng Zhi
	Xu Shuai
	Chen Hao

Cite this article:

Zhang Jianzhong,Geng Zhi,Xu Shuai等. An Improved Adaptive Harmonic Detection Algorithm for Active Power Filter[J]. Transactions of China Electrotechnical Society, 2019, 34(20): 4323-4333.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181217 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I20/4323

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