基于最优预处理方法的多小波故障数据压缩方案  

A FAULT SIGNAL DATA COMPRESSION PLAN BASED ON OPTIMAL PRE-PROCESSING METHOD OF MULTIWAVELET

作　　者：刘志刚[1] 何正友[1] 钱清泉[1] 

机构地区：[1]西南交通大学电气化自动化研究所,四川省成都市610031

出　　处：《电网技术》2005年第11期40-43,共4页Power System Technology

基　　金：国家自然科学基金资助项目(50407009);四川省应用基础研究项目(02GY029-039).~~

摘　　要：多小波的预处理方法是影响多小波应用的关键因素之一,文章提出基于预处理方法对多小波本身滤波器的影响和实际信号的应用两方面来综合选择最优预处理方法,并提出了基于该方法的多小波数据压缩方案,应用于电力系统输电线路故障信号的数据压缩,仿真结果表明,该方案较好地解决了多小波最优预处理方法的选择问题,能得到满意的压缩效果。The pre-processing method of multiwavelet is one of key factors impacting its applications. It is suggested that the optimal pre-processing method should be comprehensively chosen according to both the influence of pre-processing method on filter and the application of practical signal, and a compression plan for multiwavelet data based oh this method is proposed and applied to the data compression of transmission line fault signal. Simulation results show that the proposed plan can solve the option of multiwavelet pre-processing method well and the compression effect is satisfactory.

关 键 词：预处理方法 数据压缩 多小波 方案 最优 综合选择 故障信号 输电线路 电力系统 仿真结果 选择问题 压缩效果 应用 滤波器 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TE626.21[自动化与计算机技术—计算机科学与技术]