新型三相逆变器直流连接电容的选取方法

Selecting Method of the DC-link Capacitor of a Novel Three-phase Inverter

提出一种新型三相不可控整流三相逆变器在感性负载下的工作机理,详细探讨了逆变器感性负载时负载向直流侧倒灌电流的工作方式。根据理论分析结果,给出了直流连接电容容量的选取原则。通过仿真和实验验证了理论分析结果的正确性。

The operating principle of a novel three-phase uncontrollable rectifiers three-phase inverter with reactive load proposed previously by the author, and the work modes of ＂refluent＂ current produced by reactive loads of three-phase inverter are discussed in detail. On the basis of analysis results, the selecting criteria of the DC-link capacitor of inverter are given out. The simulations and experiments prove the theoretical analyzing results.