浙江电力2024，Vol.43Issue(1)：28-35,8.DOI:10.19585/j.zjdl.202401004
基于PLS等价权回归的系统谐波阻抗计算
System harmonic impedance calculation based on partial least squares equivalent weight regression
摘要
Abstract
To mitigate the impact of singular values in voltage and current signals on regression results and achieve a more accurate delineation of harmonic responsibilities for both the system and users,this paper proposes a method for calculating system harmonic impedance based on partial least squares(PLS)equivalent weight regression.Utiliz-ing harmonic voltage and current data from common connection points,the paper formulates a regression equation containing the sought-after parameters.The PLS is then employed to determine regression coefficients,which corre-spond to the harmonic impedance and harmonic voltage on the system side.These coefficients are used as initial val-ues for iterative equivalent weight calculations.Then,the user's harmonic emission level is deduced based on the it-erative results.This approach overcomes the drawbacks of using the least squares solution as an initial value for it-erative calculations,enhancing the precision of user's harmonic emission level calculations.The accuracy of the proposed method is validated through simulation analysis in case studies.关键词
偏最小二乘法/谐波阻抗/谐波发射水平/等价权回归Key words
PLS/harmonic impedance/harmonic emission level/equivalent weight regression引用本文复制引用
钱永亮,唐明淑,陈波,郭成,冯跃..基于PLS等价权回归的系统谐波阻抗计算[J].浙江电力,2024,43(1):28-35,8.基金项目
云南电网有限责任公司科技项目(YNKJXM20220071) （YNKJXM20220071）
