电力系统保护与控制2026，Vol.54Issue(3)：80-88,9.DOI:10.19783/j.cnki.pspc.250594
基于矩阵束频率跟踪的动态同步相量估计算法
Dynamic synchrophasor estimation algorithm based on matrix pencil frequency tracking
摘要
Abstract
Interharmonic interference can significantly degrade the accuracy of synchrophasor estimation algorithms.With the widespread integration of power electronic devices,interharmonic interference has become one of the key bottlenecks restricting further improvements in synchrophasor estimation accuracy.To address this issue,this paper proposes a dynamic synchrophasor estimation algorithm based on matrix pencil frequency tracking.The algorithm performs frequency tracking based on the matrix pencil method and introduces threshold-based singular value screening to suppress noise and extract frequency components.Then,dynamic estimation of phasor parameters is carried out based on the Taylor series model and the symmetric characteristics of phasors.Finally,the estimation accuracy is further improved by iteratively reducing the interference of negative-sequence frequency components.Simulation results show that the proposed algorithm can achieve fast tracking of fundamental frequency and high-precision estimation of synchrophasor parameters,and can effectively suppress interharmonic interference in test scenarios containing interharmonics.The algorithm fully meets the performance requirements of M-class PMU specified in the IEEE/IEC 60255-118-1 standard,and meets the P-class PMU standard in most scenarios.关键词
相量测量单元/矩阵束/最小二乘/间谐波/同步相量Key words
phasor measurement units/matrix pencil/least squares/interharmonics/synchrophasor引用本文复制引用
马晓阳,吴永心,袁泽惠,汪颖,王晓冰..基于矩阵束频率跟踪的动态同步相量估计算法[J].电力系统保护与控制,2026,54(3):80-88,9.基金项目
This work is supported by the National Key Research and Development Program of China(No.2023YFB2407600). 国家重点研发计划项目资助(2023YFB2407600) （No.2023YFB2407600）
