摘要
引风机是火电厂中主要的耗能设备,传统引风机系统实际效率较低,因此对引风机进行节能改造具有很大的潜力。介绍了高压变频器调速原理及其优点,通过在北仑发电厂2号机组引风机系统变频改造的实例,对比分析了引风机变频改造前后的节能效果。实践证明,高压变频器的使用实现了大功率电机的稳定调整、可靠运行和高效节能,具有很好的推广应用价值。
The induced draft fan is the major power consumption equipment in thermal power plants.The efficiency of a traditional induced draft fan system is low.Therefore,its energy-saving retrofit has great potential.This paper introduces the principles and advantages of speed adjustment of high voltage frequency converter.Illustrated with the case of the frequency conversion retrofit of Unit 2 induced draft fan system in Beilun Power Plant,this paper compares and analyzes the energy saving performances before and after the retrofit.The result shows that the application achieves stable adjustment,reliable operation,high efficiency and energy saving of high power motors and it is of high value for application and promotion.
出处
《浙江电力》
2011年第11期51-54,共4页
Zhejiang Electric Power
关键词
600MW
引风机
变频调速
600 MW
induced draft fan
frequency conversion and speed adjustment
