Compression of Fault Data in Power System Based on Lifting Wavelet Transform

摘要：

　　Along with the steady elevation of fault process monitoring level,the rapid increase of the fault recording data brought troubles to data transmission and storage.A new method of data compression combing lifting wavelet transform and Huffman coding was proposed in this paper.Data were converted from time-domain to frequency-domain by lifting integer wavelet transform.The high-frequency coefficients were then compressed by an improved threshold compression algorithm.Huffman coding was carried out with the processed data.Results of simulative experiments indicate that this method has a higher compression ratio when applied to fault recording data compression.

关键词： lifting wavelet transform data compression fault record power system

作者: Junfen Wang Peiyue Liu Yanling Ma Liangyan Xu

作者单位: Department of Information Engineering,Shijiazhuang University of Economics,Shijiazhuang,Hebei,050031 Department of Electromechanics Engineering,Shijiazhuang Vocational Technology Institute,Shijiazhuang Hebei Shijiazhuang Power Supply Company,Shijiazhuang,Hebei,050051 ,China

会议类型: 国际会议

会议名称: 2012 International Meeting on Opto-Electronics Engineering and Materials Research(OEMR2012)(2012光电工程与材料国际会议)

会议地点: 沈阳

会议语种:英文

页码: 542-546

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）