摘要
对比了三种常用小波在瞬时电能质量扰动检测中的表现,Symlet4小波对电压变动的检测效果显著,明显优于Daubechies小波和Meyer小波。同时在电磁暂态的检测中,虽然Symlet4小波的模极大值要略小于另外两种小波,但并不妨碍它在实际检测中的性能,该小波更适合在瞬时电能质量扰动的检测中使用。
This paper compared the three wavelets that are often used in detection of transient power quality disturbances.The Symlet4 wavelet performed much better than Daubechies and Meyer wavelets in detection of the voltage fluctuation.Although the maximal modulus of the Symlet4 wavelet was slightly less than the other two in the electromagnetic transients,it cannot affect performance of the Symlet4 wavelet.This wavelet fits detection of transient power quality disturbances well.
出处
《电工电气》
2010年第8期1-4,共4页
Electrotechnics Electric
关键词
瞬时电能质量
小波变换
模极大值
电磁暂态
transient power quality
wavelet transform
modulus maximal value
electromagnetic transient
