ANALYSIS AND OPTIMIZATION OF COORDINATED CONTROL SYSTEM FOR SUPERCRITICAL 600 MW UNIT

SONG Haihua1; WANG Bochun1; ZHOU Jun2 1.Testing and Research Institute under Hunan Provincial Electric Power Company

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ANALYSIS AND OPTIMIZATION OF COORDINATED CONTROL SYSTEM FOR SUPERCRITICAL 600 MW UNIT

更新时间：2025-09-28

- ANALYSIS AND OPTIMIZATION OF COORDINATED CONTROL SYSTEM FOR SUPERCRITICAL 600 MW UNIT
- Thermal Power Generation Vol. 40, Issue 7, Pages: 70-73(2011)
- 作者机构：
  
  1. 湖南省电力公司试验研究院
  2. 华电长沙发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK323
- Published：2011
- 稿件说明：
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SONG Haihua1, WANG Bochun1, ZHOU Jun2 1.Testing and Research Institute under Hunan Provincial Electric Power Company. ANALYSIS AND OPTIMIZATION OF COORDINATED CONTROL SYSTEM FOR SUPERCRITICAL 600 MW UNIT[J]. Thermal power generation, 2011, 40(7): 70-73.
DOI：

SONG Haihua1, WANG Bochun1, ZHOU Jun2 1.Testing and Research Institute under Hunan Provincial Electric Power Company. ANALYSIS AND OPTIMIZATION OF COORDINATED CONTROL SYSTEM FOR SUPERCRITICAL 600 MW UNIT[J]. Thermal power generation, 2011, 40(7): 70-73. DOI：

摘要

通过对配备双进双出钢球磨煤机直吹式制粉系统的超临界600MW机组原协调控制系统存在的无法满足6MW/min的AGC变负荷速率、直流锅炉调节特性的非线性、中间点温度偏差等问题的分析

提出了增加变负荷指令前馈

在燃烧、给水和协调控制调节功率回路中增加非线性函数和变参数设置等优化方案。在自动发电控制(AGC)方式下进行了升、降负荷试验

表明优化后的协调控制系统能够满足AGC的考核指标要求

控制品质良好。

Abstract

Through analysis of problems existing in original coordinated control system of a supercritical unit equipped with direct injection coal pulverizing system using double-inlet and double-outlet ball mills

i.e.the AGC load changing rate of 6 MW/min is unable to be satisfied

the regulating behavior of once-through boiler boasting non-linearity

the temperature at midle points having deviation etc.

an optimization scheme

including adding front feed to load-changing commands

adding non-linear function and parameter varying device in the power-adjusting circuits of combustion

feed-water

and coodinated control

has been put forward and tests of increasing and decreasing load under AGC mode being carried out

it shows that the coordinated control system after optimization can satisfy the requirements of assessment indices for automatic generation control(AGC)

boasting good control quality.

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