Time-varying transient harmonics measurement based on wavelet transform

Author

Jianze, Wang ; Qiwen, Ran ; Fei, Wang ; Yanchao, Ji

Author_Institution

Dept. of Electr. Eng., Harbin Inst. of Technol., China

Volume

2

fYear

1998

fDate

18-21 Aug 1998

Firstpage

1556

Abstract

This paper presents a new time-varying harmonics measurement scheme based on the wavelet transform. By projecting the amplitude of harmonics onto the subspace spanned by the wavelet and scaling functions, the proposed method transforms the time-varying amplitude estimation into constant coefficient estimation and achieves the time-varying harmonics measurement using the least mean squares algorithm (LMS). Meanwhile, the recursive algorithm (RLS) realizes the online tracking for harmonics

Keywords

harmonic distortion; least mean squares methods; measurement theory; power system harmonics; power system measurement; power system transients; recursive estimation; time-varying systems; wavelet transforms; constant coefficient estimation; harmonics amplitude; least mean squares algorithm; online harmonics tracking; recursive algorithm; scaling functions; time-varying transient harmonics measurement; wavelet transform; Amplitude estimation; Electric variables measurement; Industrial power systems; Power harmonic filters; Power system analysis computing; Power system dynamics; Power system harmonics; Power system measurements; Resonance light scattering; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 1998. Proceedings. POWERCON '98. 1998 International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-4754-4

Type

conf

DOI

10.1109/ICPST.1998.729349

Filename

729349