Control and optimization of important operation parameters in RB process of ultra supercritical units

GAO Kui; TAN Xiangshuai; GUO Sanhu; CHEN Jingyong; LIU Wencang; TAN Zhiyuan

doi:10.19666/j.rlfd.202012291

English

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Control and optimization of important operation parameters in RB process of ultra supercritical units

Thermal Power Generation Vol. 50, Issue 7, Pages: 91-99(2021)

更新时间：2025-09-28

- Control and optimization of important operation parameters in RB process of ultra supercritical units
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 京能十堰热电有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202012291
  CLC： TM621
- Published：2021
- 稿件说明：
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GAO Kui, TAN Xiangshuai, GUO Sanhu, et al. Control and optimization of important operation parameters in RB process of ultra supercritical units[J]. Thermal Power Generation, 2021, 50(7): 91-99.
DOI：

GAO Kui, TAN Xiangshuai, GUO Sanhu, et al. Control and optimization of important operation parameters in RB process of ultra supercritical units[J]. Thermal Power Generation, 2021, 50(7): 91-99. DOI： 10.19666/j.rlfd.202012291.

摘要

燃煤机组辅机故障减负荷(RB)过程中重要运行参数的控制品质直接影响机组运行安全性及稳定性

本文针对超超临界机组RB过程中给水流量、炉膛负压、一次风压及水煤比存在的控制问题进行分析

并对原采用的前馈控制、PI控制、速率控制、跳磨煤机逻辑、变参数控制等控制策略提出了相应的优化方法。优化后机组RB过程中重要运行参数变化更加平稳

该优化方法对超超临界机组RB过程控制具有较强的参考意义。

Abstract

The control quality of important operating parameters in RB process directly affects the safety and stability of coal-fired unit. In this paper

the control problems of feed water flow

furnace pressure

primary air pressure and water coal ratio in RB process of ultra supercritical unit are analyzed and summarized

and the original control strategies such as feedforward control

PI control

rate control

mill trip logic and variable parameter control are optimized. After optimization

the important operating parameters of RB process change more smoothly

indicating the proposed optimization method has a strong reference significance for RB process control of ultra supercritical units.

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