Title :
Wavelet-based algorithm for voltage flicker analysis
Author :
Chen, Ming-Tang ; MelioPoulos, A. P Sakis
Author_Institution :
Dept. of Electr. Eng., Nat. Kaohsiung Inst. of Technol., Taiwan
Abstract :
Fourier transform-based algorithms have been popular for voltage flicker analysis; however, their accuracy is unfavorably influenced by the leakage effect. This paper presents a wavelet-based algorithm for voltage flicker analysis. The algorithm can accurately extract the voltage flicker components by the direct demodulation of the voltage signal. The performance characteristics of the algorithm are evaluated with examples of appropriate simulated and field data. The results illustrate the proposed algorithm is free of leakage effect problems
Keywords :
Fourier transforms; harmonic distortion; lighting; power supply quality; power system harmonics; wavelet transforms; Fourier transform; direct voltage signal demodulation; leakage effect; performance characteristics; voltage flicker analysis; wavelet-based algorithm; Algorithm design and analysis; Continuous wavelet transforms; Demodulation; Discrete wavelet transforms; Frequency; Power quality; Power system harmonics; Signal processing algorithms; Voltage fluctuations; Wavelet analysis;
Conference_Titel :
Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-6499-6
DOI :
10.1109/ICHQP.2000.897769
