考虑涉网性能的超超临界供热机组气温自动化控制技术  

Automatic Temperature Control Technology of Ultra-supercritical Heating Unit Considering Netted Performance

作　　者：谢进安 蒋炜[1] 夏莹[1] 洪英立 杨海滨[1] XIE Jin-an;JIANG Wei;XIA Ying;HONG Ying-li;YANG Hai-bin(Zhejiang Zheneng Zhenhai Power Generation Co.,Ltd.,Ningbo 315204 China)

机构地区：[1]浙江浙能镇海发电有限责任公司,浙江宁波315204

出　　处：《自动化技术与应用》2025年第4期154-158,共5页Techniques of Automation and Applications

基　　金：浙江省科学技术研究项目(ZFD12.002.271-2022)。

摘　　要：火电厂涉网过程中超超临界供热机组存在气温大延迟与非线性等特点,导致其气温自动化控制效果较差。为此,研究考虑涉网性能的超超临界供热机组气温自动化控制技术,提升气温自动化控制效果。利用超超临界供热机组的线性状态空间模型,预测供热机组输出的气温值;通过改进蝗虫优化算法,优化模糊PID控制算法的比例、积分、微分系数;在系数优化后的模糊PID算法内,输入预测气温值与设定气温值间的差值,以及差值变化率,输出供热机组自动化控制结果。实验证明,该技术可有效预测超超临界供热机组的气温,完成气温自动化控制;经过该技术控制后,供热机组的气温始终稳定在设定温度附近,且波动幅度较小;该技术可有效降低供热机组的瞬时给煤量,提升其涉网性能。In the grid-related process of thermal power plant,the ultra-supercritical heating unit has the characteristics of large temperature delay and nonlinearity,which leads to the poor effect of automatic temperature control.Therefore,the temperature automation control technology of ultra-supercritical heating units is studied considering the performance of the network,so as to improve the effect of temperature automation control.The linear state space model of the ultra-supercritical heating unit is used to predict the output temperature of the unit.By improving the locust optimization algorithm,the proportion,integral and differential coeffi-cients of fuzzy PID control algorithm are optimized.In the fuzzy PID algorithm after coefficient optimization,it inputs the differ-ence between the predicted temperature and the set temperature,as well as the change rate of the difference,outputs the automatic control result of the heating unit.Experimental results show that the technology can effectively predict the temperature of the ul-tra-supercritical heating unit and complete the automatic temperature control.After the technology control,the temperature of the heating unit is always stable near the set temperature,and the fluctuation range is small.The technology can effectively reduce the instantaneous coal feed and improve the grid performance of the heating unit.

关 键 词：涉网性能 超超临界 供热机组 气温控制 自动化 模糊PID 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]