| Issue |
MATEC Web of Conferences
Volume 22, 2015
International Conference on Engineering Technology and Application (ICETA 2015)
|
|
|---|---|---|
| Article Number | 02007 | |
| Number of page(s) | 7 | |
| Section | Electric and Electronic Engineering | |
| DOI | https://doi.org/10.1051/matecconf/20152202007 | |
| Published online | 09 July 2015 | |
A Study on the Data Compression Algorithm of Power Quality Based on Wavelet Transformation
1 The State Key Laboratory of Power Transmission and Distribution Equitment & System Security and New technology, College of Electric Engineering, Chongqing University, Chongqing, China
2 Jiangxi Power Co., Ltd of State Grid in Xingan, Ji’an, Jiangxi, China
3 College of Electric Engineering, Chongqing University, Chongqing, China
* Corresponding author: dx761213@163.com
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.
Key words: wavelet transformation / power quality / data compression algorithm
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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