改进的谐波电流检测法及其在有源滤波器中的应用

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摘要针对有源滤波器（APF）在工程应用上的需要,本文介绍并分析了一种不仅适用于单相、三相三线以及三相四线制系统,并且适用于三相电压不对称的改进型i_p-i_q谐波电流检测法,该算法改进了正序电压提取过程以及矢量变换部分,避免了当电网电压不对称时带来的误差,并大大减少了工程计算量,提高了精确度。此外,将算法应用于有源滤波器模型中,并利用Matlab/Simulink进行仿真,仿真结果证明基于改进型i_p-i_q算法的有源滤波器能够快速准确的对电网进行补偿,验证了本文提出算法的有效性。

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	郭邵卿
	何星晔
	朱鸥
	朱天瑜

关键词 ：有源电力滤波器, 谐波, ip-iq算法, 矢量变换, 正序电压

Abstract：For the need of Active Power Filter(APF) in engineering applications, the article describes and analyzes a improved i_p-i_q method on harmonic current detection, the improved i_p-i_q method can not only applies to single-phase, three-phase three-wire and three-phase four-wire systems, but also for unbalanced three phase system. The algorithm improved the extraction process of the positive sequence voltage as well as the part of vector transform, to avoid the error when the grid voltage asymmetry, reduce the amount of engineering calculations, and improve the accuracy. In addition, the algorithm is applied to the Active Power Filter, by using Matlab/Simulink. The simulation results improved that the Active Power Filter using improved method can quickly and accurately compensate for the power grid. We can verify the effectiveness of the proposed algorithm.

Key words： Active Power Filter harmonic current ip-iq method vector transform positive sequence voltage

出版日期: 2015-07-20

作者简介: 郭邵卿（1990-）,女,江苏省常州人,硕士,主要从事电气工程及其自动化方面工作。

引用本文:

郭邵卿, 何星晔, 朱鸥, 朱天瑜. 改进的谐波电流检测法及其在有源滤波器中的应用[J]. 电气技术, 2015, 16(07): 84-87. Guo Shaoqing, He Xingye, Zhu Ou, Zhu Tianyu. Improved Harmonic Current Detection Method and its Application in APF. Electrical Engineering, 2015, 16(07): 84-87.

链接本文:

https://dqjs.cesmedia.cn/CN/Y2015/V16/I07/84