【摘要】 介绍了目前在电力系统智能保护算法中广泛研究的几种算法,包括傅氏算法及其改进算法;最小二乘法及其递推算法;小波分析算法。文中详细介绍了这几种智能保护算法尤其是改进的傅氏算法,最小二乘法递推算法,小波分析算法的内容、应用场合及优缺点,并展望小波分析和傅氏算法相结合的新方法。最后通过对这些算法分析、比较,在需要快速切断的场合下,得出更优智能保护算法是改进的傅氏算法,最小二乘法递推算法。更多还原

【Abstract】 Several intelligent algorithms of protecting electric power system,which are widely adopted and studied,are presented,including Fourier algorithm and advanced Fourier algorithm,Least square algorithm(LSA) and Recursive Least Square Correction Algorithm(RLSCA),wavelet transforms algorithm.The contents of these algorithms are described in detail respectively,specially introduced the advanced Fourier algorithm,RLSCA,wavelet transforms.And their applications,advantages and disadvantages are also given.The new method of compound of wavelet and advanced Fourier algorithm is prospected.Finally,by analyzing the algorithms and comparing their merits,the more efficient algorithms are advanced Fourier algorithm and RLSCA,applying in where it needs quickly cut-off the faults.更多还原