低压变频器IGBT模块烧毁原因分析及控制回路改进

Caused Analysis of Low Voltage IGBT Module Burnout and Improvement of Control circuit

通过对焦化空冷器风机变频器整流模块IGBT短路烧毁的故障原因分析,找出故障原因,并通过变频器的工作原理对常用的几中接线方式进行探讨,对现有的变频器接线方式提出整改方案。

The fault reasons are found out through analyze coking air cooler fan inverter rectifier module IGBT burnout.Several common connection modes are discussed and the improvement of connection mode is proposed.