A Study on the Data Compression Algorithm of Power Quality Based on Wavelet Transformation

Abstract

Based on the development history of wavelet transformation’s applications in data compression, this paper studies thee wavelets’ property of being continuous and discrete, establishes a power quality data compression model of wavelet transformation, discusses the threshold coefficient compression algorithm after the wavelet transformation, and makes an improvement with the low-frequency, high-frequency and self-adaptive power quality of the threshold compression algorithm. In the end, this paper verifies through a simulation experiment that the algorithm is adaptable to the compression of power quality data and signals are able to maintain a relatively low distortion.

Keywords

• wavelet transformation
• power quality
• data compression algorithm