中文说明：本程序是基于S变换的短时电能质量扰动检测方法实现的，用于分析电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析07011159ST
English Description：
This procedure is based on the S transform short-term power quality disturbance detection method implemented for the analysis of voltage sags amplitude, phase transitions, duration and harmonic content for analysis