发电厂高压变频设计探讨

Discussion of Power Plant High Voltage Variable Frequency Design

变频器以无级调速的方式改变了交流异步电机的运行,在负荷变化大的情况下,可以节约能源而受到大力推广。因此在火力发电厂中风机、泵类电动机越来越多地使用变频调速装置。文中对目前火电厂中变频器的特点进行了分析研究。在此基础上,对火电厂中高压变频器设计应注意的问题进行了总结。

Inverter with stepless speed regulation changes the operation way of AC asynchronous motor. It is adopted widely because it can save energy strongly when load changes greatly. So frequency control devices are more and more widely used in thermal power plant＇s air blowers and pump motors. The paper analyzed the characteristics of the power converter used at present. On the basis, problem which should be paid attention to in designing high voltage inverter of thermal plant was summarized.