电测与仪表2017，Vol.54Issue(21)：81-86,6.
基于双重筛选三点法的背景谐波源等效
Equivalent background harmonic source based on double screening three point method
摘要
Abstract
Background harmonic source equivalence is the key to the system harmonic impedance estimation.Fluctua-tion quantity method,fluctuation normalization method and dominant fluctuation screening method to estimate the har-monic impedance are widely used in engineering, but the error can not be tracked during the process of solving.In view of the above defects,this paper proposes a dual filter three point method for the estimation of the system harmonic impedance.Linear regression analysis was performed by using a set of three data points.By the first screening, we choose the regression error to meet the accuracy of data,and then,through the Nair test for the second screening,we select the user side as the leading data, finally, we can find the background harmonic.It proves that the method is correct and effective through the calculation of the measured data.关键词
电能质量/谐波/系统谐波阻抗/三点法/筛选Key words
power quality/harmonic/system harmonic impedance/three point method/screening分类
信息技术与安全科学引用本文复制引用
杨寅,吴永云,谢乔富,袁愿,徐小龙..基于双重筛选三点法的背景谐波源等效[J].电测与仪表,2017,54(21):81-86,6.基金项目
中国南方电网有限责任公司科技项目(950200KK52150003) （950200KK52150003）
