自适应小波算法在配电网电流保护中的应用研究

Application Research on Adaptive Wavelet Algorithm in the Distribution Network Current Protection

Morlet复小波算法在计算电力系统基波分量时比传统的傅里叶算法有更高的精确度,为了更好的发挥该算法的优越性,本文主要分析了Morlet复小波算法自身参数变化时对计算基波分量精度的影响,并在此基础上提出了一种具有自适应性的Morlet复小波算法,最后仿真结果表明所提出的具有自适应性的Morlet复小波算法在配电网电流保护中的应用是可行的。

This paper mainly analyzes the accuracy of calculating fundamental component when the Morlet complex wavelet algorithm＇s parameter change, and on this basis, this paper proposes a Morlet complex wavelet algorithm with adaptive, finally the simulation results show that with adaptive Morlet complex wavelet algorithm application in power distribution network current protection is feasible.