【摘要】 从传统的信号频谱分析出发,对小波故障选线新原理中的尺度选择进行了深入分析,探讨了电力系统故障暂态信号的频谱与信号小波变换模极大值之间的内在联系,为基于小波分析的故障选线新原理提供了尺度选择的理论依据,同时也为小波分析在电力系统其它领域中的更广泛应用提供了一个很重要的分析方法.更多还原

【Abstract】 On the basis of traditional signal spectrum analysis, scale choosing in a novel wavelet principle for fault line selection is analyzed in detail. The relation between spectrum and wavelet transform modulus maxima of transient fault signal is discussed in detail, which provides a theoretical foundation for choosing scale in the new wavelet criterion as well as an important analyzing method for more wavelet applications in other fields of power system.更多还原