中文说明：内含多种不同电压扰动的检测实例及本科毕业论文，分别对简单谐波、多谐波、电压中断、电压暂升暂降及中断复合扰动的检测，包括HHT的介绍和相关内容的解释
English Description：
It contains a variety of detection examples of different voltage disturbances and undergraduate thesis, including the detection of simple harmonic, multi harmonic, voltage interruption, voltage sag and interruption compound disturbance, including the introduction of HHT and the explanation of related contents