OPTIMIZATION OF CONTROL SYSTEM FOR SUPERHEATED STEAM TEMPERATURE

doi:10.19666/j.rlfd.2004.05.014

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OPTIMIZATION OF CONTROL SYSTEM FOR SUPERHEATED STEAM TEMPERATURE

更新时间：2025-09-28

- OPTIMIZATION OF CONTROL SYSTEM FOR SUPERHEATED STEAM TEMPERATURE
- Thermal Power Generation Issue 5, Pages: 42-44(2004)
- 作者机构：
  
  1. 华北电力大学
  2. 襄樊发电有限责任公司
  3. 襄樊发电有限责任公司,北京,102206
  4. ,北京,102206
  5. 湖北襄樊,441141
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2004.05.014
  CLC： TK323
- Published：2004
- 稿件说明：
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OPTIMIZATION OF CONTROL SYSTEM FOR SUPERHEATED STEAM TEMPERATURE[J]. Thermal power generation, 2004, (5): 42-44.
DOI：

OPTIMIZATION OF CONTROL SYSTEM FOR SUPERHEATED STEAM TEMPERATURE[J]. Thermal power generation, 2004, (5): 42-44. DOI： 10.19666/j.rlfd.2004.05.014.

摘要

针对 30 0MW火电机组锅炉过热汽温系统二级减温器后两侧温度的差异情况

确定了过热汽温控制系统的优化方案 :增加 1个副调节器

使每个二级喷水阀单独由 1个串级回路的副调节器输出进行控制。优化后的系统可以对温度高的一侧增加喷水量

对温度低的一侧减少喷水量

保证二级喷水总量不变。该方案经仿真实验后应用于实际

取得了明显效果。该优化方案适用于采用分散控制系统且有分隔屏过热器的锅炉。

Abstract

In view of temperature difference on two sides after secondarystage desuperheater in the superheated steam system of boiler for 300MW thermal power unit

an optimization scheme of control system for superheated steam temperature has been determined. i.e. a secondary regulator has to be added

making each secondarystage waterspraying valve to be separately controlled by the output of secondary regulater in a cascade circuit. The optimized system can increase the spraying water quantity for the high temperature side

and decrease the spraying water quantity for the low temperature side

ensuring the total secondarystage spraying water quantity to maintain constant. After simulation test

the said scheme has already been used in practice

obtaining obvious effectiveness. The said scheme is suitable for using to boilers with distributed control system and with separative platen superheater.

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