Analysis of power quality transient disturbance signal based on wavelet packet transform

Author

Chunling, Chen ; Pengfei, Wu ; Tongyu, Xu

Author_Institution

Sch. of Inf. & Electr. Eng., Shenyang Agric. Univ., Shenyang, China

fYear

2011

fDate

8-10 Aug. 2011

Firstpage

3760

Lastpage

3763

Abstract

Transient power quality problems is the salient problem in today´s power quality problems. And its detection is the precondition of monitoring and restraining. Wavelet package transform with better time frequency resolution is developed on the wavelet transform. The signal is decomposed on the wavelet package plane and the characteristic weights of signal can be achieved using available information. Through to the transient signal of voltage sag, the voltage swell, voltage interrupt, transient oscillation for analysis results show that wavelet package transform is also useful in analyzing the transient power quality.

Keywords

power supply quality; time-frequency analysis; transient analysis; wavelet transforms; power quality transient disturbance signal analysis; signal decomposition; time frequency resolution; transient oscillation; voltage interrupt; voltage sag; voltage swell; wavelet package plane; wavelet packet transform; Power quality; Transient analysis; Voltage fluctuations; Wavelet analysis; Wavelet packets; Transient Power quality; voltage sag; wavelet packet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on

Conference_Location

Deng Leng

Print_ISBN

978-1-4577-0535-9

Type

conf

DOI

10.1109/AIMSEC.2011.6010153

Filename

6010153