电器检测的谐波分析算法  

Harmonic Analysis Algorithm in Apparatus Test

作　　者：李新福[1] 刘教民[1] 崔玉龙[1] 

机构地区：[1]河北工业大学电器研究所

出　　处：《河北工业大学学报》2003年第5期23-26,共4页Journal of Hebei University of Technology

基　　金：河北省科技攻关项目(02212107D)

摘　　要：低压电器的低频骚扰抗扰度试验中对试验电流进行谐波分析是试验的关键步骤.在分析离散傅立叶变换的谱泄漏和栅栏现象的基础上,通过对时域信号加合适的窗函数,并在频域采用内插算法,有效的减小了测量过程中的频谱泄漏.设计并实现谐波分析软件,在实际应用中取得了良好效果.Harmonic analysis of testing current in low voltage apparatus testing is a key problem. Based on analyzing leakage and shutter of spectrum using FFT, through adding window function and interpolation algorithm, the spectrum leakage can be reduced effectively. A harmonic analyzing software was designed and implemented. The good results were achieved.

关 键 词：谐波 傅立叶变换 窗函数 插值算法 

分 类 号：TM930.9[电气工程—电力电子与电力传动]