Title :
New method for transient harmonics measurement based on wavelet transform
Author :
Jianze, Wang ; Yanchao, Ji ; Fei, Wang ; Qiwen, Ran
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., China
fDate :
31 Aug-4 Sep 1998
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 time-varying harmonics measurement using the least mean squares algorithm (LMS). Meanwhile, the recursive algorithm (RLS) realizes the online tracking for harmonics
Keywords :
least mean squares methods; power system harmonics; power system measurement; power system transients; recursive estimation; wavelet transforms; constant coefficient estimation; harmonics amplitude; least mean squares algorithm; online harmonics tracking; power system transient harmonics; recursive algorithm; scaling functions; time-varying harmonics measurement scheme; wavelet transform; Amplitude estimation; Distortion measurement; Equations; Industrial power systems; Power harmonic filters; Power system analysis computing; Power system harmonics; Power system measurements; Resonance light scattering; Wavelet transforms;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Conference_Location :
Aachen
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.724167
