660 MW超临界燃煤发电机组的深度调峰自动控制  

Automatic Control of Deep Peakingfor 660 MW Supercritical Coal-Fired Generating Units

作　　者：张小根 琚敏 吴可泽 崔庆伟 卢瑶瑶 ZHANG Xiaogen;JU Min;WU Keze;CUI Qingwei;LU Yaoyao(Zhejiang Zheneng Lanxi Electric Power Generation Co.,Ltd.,Lanxi 321100,China;Beijing Newleaf Energy Technology Co.,Ltd.,Beijing 100180,China)

机构地区：[1]浙江浙能兰溪发电有限责任公司,浙江兰溪321100 [2]北京新叶能源科技有限公司,北京100180

出　　处：《自动化仪表》2023年第12期53-57,64,共6页Process Automation Instrumentation

基　　金：浙能集团科技基金资助项目(ZNKJ-2021-007)。

摘　　要：为了优化超临界燃煤发电机组调峰效果,以660 MW超临界燃煤发电机组为研究对象,提出基于比例积分微分(PID)控制器的660 MW超临界燃煤发电机组深度调峰自动控制方法。建立燃煤发电机组的动态模型,以此构建变工况模型;利用变工况模型分析660 MW超临界燃煤发电机组在深度调峰过程中的动态特性;根据分析结果设计PID控制器,以此实现660 MW超临界燃煤发电机组的深度调峰自动控制。试验结果表明,所提方法的深度调峰灵活性高,可以满足向上和向下的调峰需求,且与设定的调峰需求之间差距较小;控制后的弃风率和弃光率低、功率有所下降。试验结果证明了所提方法具有良好的深度调峰性能。To optimize the peaking effect of supercritical coal-fired generating units, a 660 MW supercritical coal-fired generating unit is taken as the research object, and a proportional integraldifferential(PID) controller-based automatic control method is proposed for the deep peaking of 660 MW supercritical coal-fired generating unit. The dynamic model of the coal-fired generating unit is established, and a variable operating condition model is constructed;the dynamic characteristics of the 660 MW supercritical coal-fired generating unit in the deep peaking process are analyzed using the variable operating condition model;the PID controller is designed according to the analytical results to realize the automatic control of the 660 MW supercritical coal-fired generating unit in the deep peaking. The test results show that the proposed method has high flexibility in deep peaking, can meet the upward and downward peaking demand, and has a small gap with the set peaking demand;the wind and light discard rates are low, and the power is reduced after control. The test results prove that the proposed method has good deep peaking performance.

关 键 词：燃煤发电机组 变工况模型 深度调峰 动态特性 比例积分微分控制器 直吹式制粉系统 蒸发系统 

分 类 号：TH89[机械工程—仪器科学与技术]