变频器在火力发电厂凝结水系统中的应用

The Application of Frequency Converter in Condensation Water System of Power Plants

分析了发电厂凝结水系统的概况及实施变速调节的必要性,对水泵节能原理和异步电机各种调速方法进行了简要对比,重点讨论了静态电力电子装置变压变频器工作原理,并对马鞍山发电厂凝结水系统所采用的LB系列变频器作了详细介绍和应用说明.

On the basis of analyzing the general condition of the condensation system of the power plant and the necessity of the application of its velocity modulation as well as the principle of energy-saving pump,this paper makes a concise comparision between various mathods of velocity modulation,for asynchronous motors and mainly discusses the principle of a static electrical-electronic variable voltage variable freauency device.It also presents a detailed introduction into and explanation of the application of LB-Serial Frequency Converter in the condensation system of Maanshan Power Plant.