无环流交交变频器中的新型零电流检测电路

New Type Zero Current Detecting Circuit in the Non-circulative Cycloconverter

简要介绍了无环流交交变频器的工作原理,设计了一种新型零电流检测电路,该电路具有结构简单、无环流死时小、能消除“假”有电流信号的特点,通过仔细分析该电路实际使用中出现的问题,找出出现问题的原因并提出解决问题的方法.

In this paper, the principle of the non-circulative Cycloconverter is presented. A new type zero current detecting circuit is introduced, which has many good features, such as a simple structure, short non-circulative dead time and the elimination of ＂false＂ current signal. By anatomizing the problem of the practical using of this kind of detecting circuit, the cause of the fault is found out and the problem-solving method is offered.