Tracking time-varying waveform distortion in power systems using filter banks

Author

Barros, Julio ; Apraiz, Matilde ; Diego, Ramón I.

Author_Institution

Dept. of Electron. & Comput., Univ. of Cantabria, Santander, Spain

fYear

2012

fDate

13-16 May 2012

Firstpage

334

Lastpage

338

Abstract

This paper presents a method for tracking time-varying waveform distortion in low voltage supply systems using wavelet filter banks. The method proposed decomposes and reconstructs the input signal in selected frequency bands using a multi-stage wavelet filter bank, to provide a clear visualization of the time-varying nature of waveform distortion for its analysis. The results obtained, both in simulation and using real power signals, show a good performance of the method developed to extract each harmonic component of a signal in the time domain.

Keywords

channel bank filters; decomposition; power harmonic filters; power supply quality; signal reconstruction; time-domain analysis; harmonic component; low voltage supply systems; multistage wavelet filter bank; power systems; real power signals; signal decomposition; signal reconstruction; time domain; time-varying waveform distortion; Filter banks; Harmonic analysis; Instruments; Power harmonic filters; Wavelet packets; Harmonic distortion; filter banks; power quality; time-varying harmonics; wavelet packet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International

Conference_Location

Graz

ISSN

1091-5281

Print_ISBN

978-1-4577-1773-4

Type

conf

DOI

10.1109/I2MTC.2012.6229208

Filename

6229208