Optimization on control strategy of feedwater pump for a 300MW unit after frequency transformation

LI Junhong; LYU Ping; FENG Jiangtao; LIU Suoqing; DING Jianhai

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Optimization on control strategy of feedwater pump for a 300MW unit after frequency transformation

Thermal Power Generation Vol. 44, Issue 10, Pages: 119-123(2015)

更新时间：2025-09-28

- Optimization on control strategy of feedwater pump for a 300MW unit after frequency transformation
- 作者机构：
  
  1. 山西大学自动化系
  2. 内蒙古乌斯太热电厂
  3. 山西大学动力系
  4. 晋能电力集团有限公司嘉节燃气热电分公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2015
- 稿件说明：
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LI Junhong, LYU Ping, FENG Jiangtao, et al. Optimization on control strategy of feedwater pump for a 300MW unit after frequency transformation[J]. Thermal Power Generation, 2015, 44(10): 119-123.
DOI：

LI Junhong, LYU Ping, FENG Jiangtao, et al. Optimization on control strategy of feedwater pump for a 300MW unit after frequency transformation[J]. Thermal Power Generation, 2015, 44(10): 119-123. DOI：

摘要

为了提高机组运行经济性

将内蒙古乌斯太热电厂1号300MW机组给水系统3台勺管调速电动给水泵中的2台改为一拖二变频调速给水泵

并对给水系统控制逻辑进行了优化

增加了变频控制功能

设置了给水泵故障状态下备用启动允许功能。应用结果表明

给水系统改造后不仅降低了耗电量

而且提高了机组运行经济性和安全性。

Abstract

In order to improve the economic efficiency of unit 1in Wusitai Thermal Power Plant in Inner Mongolia

technical transformation on the feedwater system was carried out.Two of three scoop tube speed-regulating electricicty-driven feedwater pumps were changed into one-to-two frequency variable speed-regulating feedwater pumps.Moreover

the feedwater control logic was optimized

the frequency conversion control function was added

and a fault situation backup start permit function was set up.The application results show that

after the transformation

the electricity consumption of the feedwater system decreased and the unit operation safety was also improved.

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