一种简单的变频切换工频防冲击电流的方法及其应用

A Simple Method of Dash Current Resistance for Switching Frequency Conversion to Power Frequency and Its Application

对工程中变频转换工频造成跳闸的问题进行分析,简单讨论了目前解决这种问题的做法。将一种延时转换加适当调高短路短延时整定参数的方法运用到某实际工程中,并取得了很好的效果。

This paper analyzes the problem of trip caused by the frequency conversion switched to power frequency in the projects, and briefly discusses the method to solve this kind of problem now. The method of time-delay conversion plus proper adjustment of short circuit short-time delay setting parameter is applied in a practical project, and an excellent effect is achieved.