中压变频器在火电厂送风机控制中的应用

The Application of Medium Voltage Transducer of Blower Control in Thermal Power Plant

分析利用美国 Ａ－Ｂ１５５７型中压变频器对黄石电厂送风机控制进行改造的可行性，介绍变频调速原理及特点和在送风机控制中预期运行效果。分析表明，该中压变频器对于 ６ ０００ Ｖ、１２５０ｋＷ的高压大功率电动机可实现稳定调整，并且运行可靠，节能效果显著。

By analyzing and using the feasibility of modification with the U. S. type A-B1557 medium voltage transducer for blower control in Huangshi power plant,the principle and feature of frequency conversion and the expected operation result in blower control are introduced. It is proved that the medium voltage transducer can stably adjust 6000V, 1250kW high voltage high power motor with reli- able operation and distinct saving energy effect.