swell-shrink characteristics

This paper provides a new method for fast qualitatively detecting the disturbance sources, which is based on their statistical instantaneous characteristics. There are four examples imitated under MATLAB including harmonics, voltage sag, voltage swell, short-time transform of voltage dip.

提出一种基于检测点产生的瞬时负荷统计特性快速确认扰动源的方法，展示了该原理在谐波、电压凹陷、电压膨胀、瞬间电压降落四种扰动，在MATLAB下的仿真和计算结果。

Among those several representative short-term power quality disturbances are introduced particularly, and their characteristics are analyzed. They are: voltage sag, voltage swell and voltage interruption;

其中，对几种有代表性的短时电能质量扰动作了详尽而细致的描述，分析了它们的扰动特征，分别是：电压凹陷、电压凸起和电压中断；