变频器在火电厂的应用问题与实践

Reform onvariable frequency speed regulation of power plant ash conveying pipe motor

为降低火电厂厂用电率,火电厂都已大范围采用高低压变频调节技术节能降耗。针对使用IGBT作为功率器件的变频器自身的特点进行分析,对其在现场应用可能出现的一些实际问题提出解决办法并简要论述冲灰泵电机变频调速改造方案,总结一台变频器带两台公用负载的改造经验。

Power plants employ the high-low voltage variable frequency regulation in wide range in order to reduce, power consumption rate. Considering variable frequency regulation＇s characteristics, with IGBT as its power device, the paper proposes solutions for application problems. Also, reform scheme is discussed and experience of one inverter driving two public loads is summarized.