| 谐波源和闪变源的识别算法 |
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| 引用本文： | 齐 勇,江亚群,黄 纯,吴乐鹏. 谐波源和闪变源的识别算法[J]. 电力自动化设备, 2011, 31(11): 60-63,68 |
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| 作者姓名： | 齐 勇 江亚群 黄 纯 吴乐鹏 |
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| 作者单位： | 湖南大学电气与信息工程学院,湖南长沙,410082 |
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| 基金项目： | 湖南省自然科学基金资助项目（10JJ5055） |
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| 摘 要： | 从多个负荷中鉴别出谐波和闪变的扰动源,有利于明确电能质量问题责任,进行针对性治理.提出一种谐波源和闪变源的识别算法.通过移动窗数据处理方式计算公共连接点(PCC)电压与各负荷支路电流的最大相关系数,据此评价电压与电流波形相似度,实现多支路负荷中非线性负荷的识别,鉴别出普通负荷与谐波、闪变扰动源负荷;比较PCC电压与扰动...
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| 关 键 词： | 电能质量 谐波分析 电压波动 闪变 扰动源 识别 |
Identification algorithm of harmonic source and flicker source |
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| QI Yong,JIANG Yaqun,HUANG Chun and WU Lepeng. Identification algorithm of harmonic source and flicker source[J]. Electric Power Automation Equipment, 2011, 31(11): 60-63,68 |
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| Authors: | QI Yong JIANG Yaqun HUANG Chun WU Lepeng |
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| Affiliation: | (College of Electrical and Information Engineering,Hunan University,Changsha 410082,China) |
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| Abstract: | An algorithm for identifying the harmonic and flicker sources from multiple loads is proposed,which calculates the maximum correlation coefficient between load current and PCC(Point of Common Coupling) voltage based on the moving window approach of sampled data,assesses their waveform similarity,detects the harmonic and flicker disturbance source loads from normal loads,compares the variation direction between PCC voltage and disturbance source load,estimates the correlation between these two directions by the product of voltage increment and current increment,and identifies the harmonic and flicker sources.Simulative results show that,the proposed algorithm locates the power quality disturbance sources when both harmonic source and flicker source exist. |
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| Keywords: | power quality harmonic analysis voltage fluctuation flickering disturbance source identification |
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