配电网中谐波电流责任划分定量分析  

Quantitative analysis of harmonic current responsibility in distribution network

作　　者：马宏忠[1] 徐刚[1] 宋树平[1] 赵宏飞[1] 任立志[1] 

机构地区：[1]河海大学能源与电气学院,江苏南京210098

出　　处：《电力自动化设备》2014年第6期44-49,共6页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51177039);高等学校博士学科点专项科研基金资助项目(20090094110011)~~

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。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.

关 键 词：配电 谐波分析 定量分析 QR-RLS算法 仿真 

分 类 号：TM714[电气工程—电力系统及自动化]