数字化主动配电网的多谐波源谐波责任划分方法  

Harmonic Contribution Division Method of Multiple Harmonic Sources in Digital Active Distribution Grid

作　　者：李树荣 马晓燕 李华 陈长金 李伟豪 LI Shurong;MA Xiaoyan;LI Hua;CHEN Changjin;LI Weihao(State Grid Hebei Electric Power Co.,Ltd.Xiong'an New Area Power Supply Company,Xiong’an New Area 071000,China;School of Electrical and Information Engineering Tianjin University,Tianjin 300072,China;State Grid Hebei Electric Power Co.,Ltd.Shexian Power Supply Branch,Handan 056000,China;State Grid Hebei Training Center,Shijiazhuang 050021,China)

机构地区：[1]国网河北省电力有限公司雄安新区供电公司,河北雄安新区071000 [2]天津大学电气自动化与信息工程学院,天津300072 [3]国网河北省电力有限公司涉县供电分公司,河北邯郸056000 [4]国网河北省电力有限公司电力培训中心,河北石家庄050021

出　　处：《河北电力技术》2021年第3期72-75,86,共5页Hebei Electric Power

摘　　要：电网中公共连接点的谐波污染是多个谐波源共同作用的结果,为了更准确地划分公共连接点各个谐波源的谐波污染责任,提出了一种基于快速独立分量分析(FastICA)的多谐波源谐波污染责任划分方法。首先,准确划分谐波污染责任的前提是准确估算背景谐波和谐波传递阻抗,提出的方法可以基于FastICA完成背景谐波和谐波传递阻抗的估算;然后将各谐波源在PCC产生的谐波电压分量在PCC总谐波电压上矢量投影,计算得到各个谐波源的谐波责任;最后完成谐波污染责任划分。The harmonic pollution at the point of common coupling(PCC)in the public grid is the outcome of combined contribution of multiple harmonic sources.For a better division of harmonic contribution,this paper proposes a method to quantify harmonic contributions of multiple harmonic sources based on Fast ICA.The background harmonics and the harmonic transfer impedance can be estimated accurately by the proposed method based on FastICA.Harmonic contribution of multiple harmonic source is calculated after the estimation of the background harmonics and the harmonic transfer impedance.

关 键 词：数字化主动配电网 电能质量 多谐波源 谐波责任划分 

分 类 号：TM74[电气工程—电力系统及自动化]