【摘要】 根据电力系统故障信号的特点和小波分析的多尺度分辨分析能力 ,提出了基于小波分析的电力系统故障录波信号压缩方法。为了便于讨论压缩比Rc、赋范均方误差Fc 与压缩级数J的关系 ,绘出了RFJ曲线 ,并据此比较了几种故障信号压缩效果 ,说明该压缩方法是一种非常有效的方法。更多还原

【Abstract】 According to the characteristic of fault signals in power system and the multi resolution analysis ability of wavelet analysis,a method based on wavelet analysis for the compression of fault recording signals of power system is presented. In order to ease the discussion of the relationship among compression rate R c, normed mean square error F c and compression grades J , curves of RFJ are plotted, based on which the compression effectiveness on several fault signals is compared. It is proved that the compression method is practical and efficient.更多还原