Fuzzy control system for intermediate point enthalpy based on feedforward of feed-water temperature

YANG Zihao; ZHANG Yanping; GAO Wei

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Fuzzy control system for intermediate point enthalpy based on feedforward of feed-water temperature

Thermal Power Generation Issue 5, (2017)

更新时间：2025-09-28

- Fuzzy control system for intermediate point enthalpy based on feedforward of feed-water temperature
- 作者机构：
  
  华中科技大学能源与动力工程学院,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK3
- Published Online：27 May 2017，
  
  Published：2017
- 稿件说明：
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YANG Zihao, ZHANG Yanping, GAO Wei. Fuzzy control system for intermediate point enthalpy based on feedforward of feed-water temperature[J]. Thermal Power Generation, 2017, (5).
DOI：

YANG Zihao, ZHANG Yanping, GAO Wei. Fuzzy control system for intermediate point enthalpy based on feedforward of feed-water temperature[J]. Thermal Power Generation, 2017, (5). DOI：

摘要

超临界机组中间点焓值的控制品质直接影响直流锅炉的水煤比和主蒸汽温度的控制质量，关系到超临界机组的经济安全运行。为了达到对中间点焓值高品质控制的目的，本文利用某超临界600 MW机组直流锅炉的Simulink机理模型作为控制对象，将给水温度作为前馈引入到中间点焓值控制系统模型中，将目前广泛应用的修正给水量控制方案和修正给煤量控制方案通过模糊控制相结合，提出基于给水温度的中间点焓值模糊控制方案，解决了中间点焓值控制响应快速性与汽水分离器分离界面稳定性的矛盾。仿真结果表明，改进的中间点焓值控制系统具有修正给水量控制方案的快速性和修正给煤量控制方案的稳定性，有效兼顾中间点焓值控制系统调节过程的经济性与安全性，在中间点焓值控制中得到了满意的控制效果。

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