Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- summer
- /
- Pages.336-338
- /
- 2004
A Study of Data Compression of Power Quality Disturbance Signal
전력품질 왜곡 신호 압축에 관한 연구
- Chung Young Sik (University of Incheon, Dept. of Electrical Engineering) ;
- Park Chan Woong (University of Incheon, Dept. of Electrical Engineering)
- Published : 2004.07.14
Abstract
This paper introduces a compression algorithm for power quality disturbance signal via the discrete wavelet transform, DWT. Fundamental signal or stationary signal is estimated and then subtracted from a given signal to obtain a difference signal or nonstationary signal. DWT is applied to a difference signal to get coefficients that are thresholded to reduce a number of coefficients. Simulation results show the resonable compression ratio while keep low signal distortion.
Keywords