吴 楠,付娟娟,李天玉.基于TLS-ESPRIT法的线路故障暂态分量特征提取[J].电测与仪表,2016,53(6):. WU Nan,FU Juan-juan,LI Tian-yu.Characteristics extraction of transient component in transmission line fault based on TLS-ESPRIT algorithm[J].Electrical Measurement & Instrumentation,2016,53(6):.
基于TLS-ESPRIT法的线路故障暂态分量特征提取
Characteristics extraction of transient component in transmission line fault based on TLS-ESPRIT algorithm
For complex modeling of traditional transient line fault analysis and low precision of characteristics extraction of transient component,TLS-ESPRIT(Total Least Square- Estimation of Signal Parameters via Rotation Invariance Techniques) is used to extract characteristics of transient component of line fault.It can identify parameters of transient component like frequency,amplitude,attenuation coefficient.As its strong anti-noise ability,it can be used to analyze field transient signals and reappear field signals via extracted characteristic parameters.Through simulation,the feasibility of TLS-ESPRIT to extract transient component characteristics when short fault occurs in transmission line is testified.