Automatic control logic optimization for feed-water in start-up period of a 600MW unit

XI Chengchao

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Automatic control logic optimization for feed-water in start-up period of a 600MW unit

更新时间：2025-09-28

- Automatic control logic optimization for feed-water in start-up period of a 600MW unit
- Thermal Power Generation Vol. 43, Issue 5, Pages: 113-116(2014)
- 作者机构：
  
  华能上海石洞口第二电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.7
- Published：2014
- 稿件说明：
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XI Chengchao. Automatic control logic optimization for feed-water in start-up period of a 600MW unit[J]. Thermal power generation, 2014, 43(5): 113-116.
DOI：

XI Chengchao. Automatic control logic optimization for feed-water in start-up period of a 600MW unit[J]. Thermal power generation, 2014, 43(5): 113-116. DOI：

摘要

基于对华能上海石洞口第二电厂一期超临界2×600MW机组给水自动控制逻辑中存在的给水泵转速控制在给水泵入口流量低于流量上限值50t/h时闭锁转速输出指令等问题的分析

对给水自动控制逻辑进行了调整给水泵流量上限控制参数、给水调节阀低限、给水泵转速指令分配控制逻辑以及防止给水控制PID积分饱和等优化

使得控制逻辑不仅能满足机组启动阶段对给水流量的控制要求

而且实现了机组启、停及正常运行中的给水全程自动控制。

Abstract

On the basis of analyzing problems occurred in automatic control logic of feedwater for Huaneng Shidongkou Second Power Plant

relevant control strategy optimizations were conducted

such as regulating the upper limit parameters of flow in feedwater pump

adjusting the lower limit of feedwater control valve

modifying the distribution strategy of two parallel feed-water pumps

and preventing the PID controller of the feed-water system from intergral saturation.After improvement

the control logic can not only satisfy the control of feedwater during the unit's start-up period

but also realize full-time automatic control of feedwater during start-up

shutdown and running of the unit.

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