OPTIMIZATION OF ANALOG CONTROL SYSTEM FOR ULTRA-SUPERITICAL 660 MW UNIT IN HUADIAN WUHU POWER PLANT

ZHAO Zhidan1; DUAN Yuanguang2; LIANG Chao1; XU Guangxue2; GAO Kui1; SUN Yunlai2; CHEN Zhigang11.Xi'an Thermal Power Research Institute Co Ltd

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OPTIMIZATION OF ANALOG CONTROL SYSTEM FOR ULTRA-SUPERITICAL 660 MW UNIT IN HUADIAN WUHU POWER PLANT

更新时间：2025-09-28

- OPTIMIZATION OF ANALOG CONTROL SYSTEM FOR ULTRA-SUPERITICAL 660 MW UNIT IN HUADIAN WUHU POWER PLANT
- Thermal Power Generation Vol. 40, Issue 6, Pages: 61-64(2011)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华电芜湖发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.7
- Published：2011
- 稿件说明：
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ZHAO Zhidan1, DUAN Yuanguang2, LIANG Chao1, et al. OPTIMIZATION OF ANALOG CONTROL SYSTEM FOR ULTRA-SUPERITICAL 660 MW UNIT IN HUADIAN WUHU POWER PLANT[J]. Thermal power generation, 2011, 40(6): 61-64.
DOI：

ZHAO Zhidan1, DUAN Yuanguang2, LIANG Chao1, et al. OPTIMIZATION OF ANALOG CONTROL SYSTEM FOR ULTRA-SUPERITICAL 660 MW UNIT IN HUADIAN WUHU POWER PLANT[J]. Thermal power generation, 2011, 40(6): 61-64. DOI：

摘要

华电芜湖电厂超超临界660 MW机组投产后因煤质很差导致机组在自动发电控制(AGC)方式下无法满足2%/min负荷变化率

变负荷频繁且变化幅度大

给煤机断煤频繁等工况所产生的主蒸汽压力偏差大、主/再热蒸汽温度大幅度波动

使机组无法在协调控制方式下运行。对此

在原控制策略的基础上

对协调等主要控制策略进行了修改

对相关控制函数及调节参数进行了优化。优化后在AGC方式下可适应较大范围的负荷变化。

Abstract

After putting into operation

the ultra-supercritical 660 MW unit in Huadian Wuhu Power Plant was unable to satisfy the load changing rate of 2%/min under the automatic generation control(AGC) mode due to very bad coal quality

leading to large deviation of main steam pressure and large magnitude fluctuation of main and reheated steam temperature resulting from frequent and large magnitude load change

and frequent coal interruption in the coal feeder

makeing the unit being unable to operate under coordinated control mode.For this

based on the original control strategy

the main control strategies

such as coordinated control etc.

have been corrected

and the related control function and regulation parameters being optimized.After optimization

the unit can suit to load change in a large range under AGC mode.

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