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中文摘要：
为能够明确配电网中供电侧和用户侧对电网谐波污染的责任,提出基于QR分解的递归最小二乘（QRRLS）算法来分析谐波电流。该算法能够提取出指定次数的谐波电流在公共耦合点（PCC）处的瞬时值,并能求出供电侧和用户侧谐波电流在PCC处的相位差,在此基础上计算出供电侧和用户侧独自产生的谐波电流。最后通过PSCAD/EMTDC软件搭建仿真电路,并用MATLAB软件进行数据分析,结果验证了所提算法的正确性。
英文摘要：
A QR-RLS（Recursive Least-Squares based on QR decomposition） based algorithm of quantitative harmonic current analysis is proposed to explicitly distinguish the harmonic pollution responsibility between utility side and customer side of distribution network,which extracts the instantaneous current of specified order harmonic at PCC（Point of Common Coupling）,gets its phase difference between utility side and customer side and calculates their contributions respectively. Simulation circuit is built with PSCAD / EMTDC and MATLAB is applied in data analysis,which verifies the correctness of the proposed algorithm.
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