一种基于自适应滤波器的新型单相锁相环技术

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Abstract The single-phase phase-locked loop (SPLL) plays a very important role in single-phase power systems. This paper presents a new kind of SPLL based on the adaptive filter. First the least mean square algorithm based adaptive filter is used to produce the required orthogonal signals. Moreover, the decoupling function between the front-end orthogonal signals generator (OSG) and the post-stage phase locked loop is realized in the proposed SPLL structure. Compared with traditional OSG and SPLLs, the proposed SPLL can provde better dynamic performance because its bandwidth can increase significantly due to the decoupled structure. Finally, the experimental results demonstrate the feasibility of the presented SPLL.

Key words： Adaptive filter, orthogonal signals generator, single-phase phase locked loop, least mean square algorithm

Published: 04 January 2017

PACS:

TM935

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	Articles by authors
	Dong Lei
	Han Jingcao
	Xiao Furong
	Huang Xiaojiang
	Liao Xiaozhong

Cite this article:

Dong Lei,Han Jingcao,Xiao Furong等. A Novel Single-Phase Phase-Locked Loop Based on Adaptive Filter[J]. Transactions of China Electrotechnical Society, 2016, 31(增刊): 155-161.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I增刊/155

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