快速判断三相桥式全控整流电路实验故障的方法

A Fast Method for Judging the Fault of the Experiment of Three-Phase Full-Bridge Controlled Rectifier

三相桥式全控整流电路实验是电力电子实验课必做的基础性实验。在此基础上展开的实验项目有逆变、变频等实验,实验电路也是电机与拖动实验课的基础电路。通过实验教学发现,在后续的各实验中所出现的问题,多数情况归结于三相整流电路自身的问题。因此,对三相桥式全控整流电路实验中出现的各种现象有个清晰的思路,并迅速地找出问题,排除故障非常有必要。

The experiment of Three - phase full - bridge controlled rectifier is the basic experiment of Power Electronics experi- ment course. The inverter and variable - frequency experiments are based on the experiments, is also the basic circuit of electric motor and driving experiment course. Through the experimental teaching we can found that in the subsequent experiments in these problems, most of the situation due to the three - phase rectifier circuit itself. Therefore, it is necessary to have a clear idea on the phenomena of the three -phase full -bridge controlled rectifier experiment, and quickly find out the problem and solve it.