Optimization of protection and control system of a 660MW ultra supercritical unit without desulfurization bypass

CHEN Yongcheng

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Optimization of protection and control system of a 660MW ultra supercritical unit without desulfurization bypass

Thermal Power Generation Vol. 42, Issue 11, Pages: 164-166(2013)

更新时间：2025-09-28

- Optimization of protection and control system of a 660MW ultra supercritical unit without desulfurization bypass
- 作者机构：
  
  广东红海湾发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： X773
- Published：2013
- 稿件说明：
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CHEN Yongcheng. Optimization of protection and control system of a 660MW ultra supercritical unit without desulfurization bypass[J]. Thermal Power Generation, 2013, 42(11): 164-166.
DOI：

CHEN Yongcheng. Optimization of protection and control system of a 660MW ultra supercritical unit without desulfurization bypass[J]. Thermal Power Generation, 2013, 42(11): 164-166. DOI：

摘要

针对保留独立增压风机取消旁路烟道的脱硫系统

进行了在机组保护控制逻辑中增加4种脱硫系统故障时锅炉总燃料跳闸(MFT)控制方式等优化;根据快速减负荷(RB)试验结果

对增压风机动叶控制策略进行了正常工况和事故工况的控制前馈及其系数的改进。RB试验结果表明

RB工况下增压风机入口压力变化量为1 309Pa

较控制逻辑修改前变化量(2 065Pa)有显著改善。

Abstract

According to the desulfurization system that retained an independent booster fan and added bypass blocking plates

optimizations like increasing four desulfurization system failures to trip boiler in the unit protection control logic were conducted.On the basis of the RB test results

the feed forward control and its coefficient of the blade control strategy for the booster fan under normal condition and fault condition were improved.The RB test results showed that

by the improved control strategy of booster fan blade under the RB conditions

the variation of the booster fan inlet pressure was 1 309Pa

which was significantly decreased compared to that before the improvement(2 065Pa).

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Related Author

CHEN Xing

ZHOU Liguo Datang Xinyang Hua'yu Power Generation Co Ltd

HU Kun

MA XuesongGuangdong Electric Power Design Institute

LI Ke1

ZHANG Chen2

XU Silong3

GUI Jun4 1.College of Electric and Electronic Engineering

Related Institution

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