基于小波变换的相关函数介质损耗角测量算法  

Algorithm of dielectric loss angle measurement based on correlation function of wavelet transform

作　　者：郭松林[1] 王吉元[1] 

机构地区：[1]黑龙江科技学院电气与信息工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2012年第3期273-276,205,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：黑龙江省教育厅科学技术研究项目(11551426)

摘　　要：为准确测量容性设备的介质损耗角,采用小波变换进行低频重构的方法分别求出电压、电流的自相关函数及电压与电流的互相关函数,然后再用相关函数法计算介质损耗角。仿真结果表明:该算法的测量误差曲线基本呈线性,为绝缘介质损耗角提供了科学准确的测量方法。Aimed at accurately measuring the dielectric loss angle of capacitive equipment, this paper offers the voltage autocorrelation function, the current autocorrelation function, and the cross-correlation function, developed by the low-frequency reconstruction on wavelet transform, together with the cal- culation of the dielectric loss angle through the correlation function. The simulation suggests that this algorithm with the error measuring curve of the basic linearity promises as a reliable scientific method for the measurement of dielectric loss angle

关 键 词：介质损耗角 小波变换 相关函数 算法 

分 类 号：TM934.3[电气工程—电力电子与电力传动]