过热汽温系统改进自抗扰控制及其工程应用研究  

Research on modified active disturbance rejection control and its engineering application for superheated steam temperature system

作　　者：王永 史耕金 吴振龙 WANG Yong;SHI Gengjin;WU Zhenlong(China Power International Development Limited,Beijing 100080,China;School of Electrical and Information Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]中国电力国际发展有限公司,北京100080 [2]郑州大学电气与信息工程学院,河南郑州450001

出　　处：《热力发电》2025年第3期150-157,共8页Thermal Power Generation

基　　金：国家自然科学基金项目(52106030);电力系统国家重点实验室开放课题(SKLD21KM14);郑州大学教授团队助力企业创新驱动发展专项(JSZLQY2022016)。

摘　　要：过热汽温对于燃煤机组的安全性、经济性十分重要,然而,由于过热汽温系统的大惯性和强不确定性使得其控制难度较大。为此,提出了一种基于改进自抗扰控制的串级控制结构,内环采用常规PI控制器,外环采用改进自抗扰控制器,并给出了改进自抗扰控制的工程整定方法,同时针对补偿环节时间常数难以得到的难点,设计了基于响应曲线的补偿环节时间常数优化方法。最后通过对比仿真和实际工程应用,验证了所提控制策略在大范围变负荷下的设定值跟踪和抗干扰性性能的优势,工程应用的运行数据显示所提方法能够保证更小的偏差、平均绝对偏差与偏差标准差,具有明显的优势和工程应用潜力。Superheated steam temperature is crucial for safety and economy of coal-fired power units.However,the large inertia and strong uncertainty of superheated steam temperature system make it difficult to control.To solve these difficulties,a cascade control structure based on modified active disturbance rejection control is proposed.The inner loop uses a conventional PI controller and the outer loop uses a modified active disturbance rejection controller.An engineering tuning method for modified active disturbance rejection control is provided,and a response curve to optimize the compensation time constant is designed to address the difficulty of obtaining the compensation time constant.Finally,the advantages of the proposed control strategy in tracking and disturbance rejection performance under large-scale variable loads are verified through comparative simulations and practical engineering applications.The operational data of engineering applications shows that the proposed method can ensure smaller maximum positive and negative deviations,average absolute deviation,and deviation standard deviation,which has significant advantages and potential for engineering applications.

关 键 词：过热汽温系统 改进自抗扰控制 参数整定 工程应用 

分 类 号：TM621[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]