大范围变负荷下火电机组改进自抗扰控制研究  

Research on the Modified Active Disturbance Rejection Control for Thermal Power Units under Wide Range Variable Loads

作　　者：刘娜娜 杨小龙 崔晓波 殳建军[1] 管诗骈[1] LIU Na-na;YANG Xiao-long;CUI Xiao-bo;SHU Jian-jun;CUAN Shi-pian(Jhangsu Frortier Electric fechnology Co.,Ltd.;School of Erergy and Power Engineering.Narjing lns titute of Technology)

机构地区：[1]江苏方天电力技术有限公司 [2]南京工程学院能源与动力工程学院

出　　处：《化工自动化及仪表》2025年第2期171-178,共8页Control and Instruments in Chemical Industry

摘　　要：建立了大范围变工况下火电机组协调控制系统的非线性模型,并通过现场数据对动态参数进行辨识。为了提高火电机组协调控制系统的控制品质,提出了一种基于改进自抗扰控制的直接能量平衡控制结构,其中主蒸汽压力回路和负荷回路分别采用改进自抗扰控制和常规自抗扰控制。基于大量仿真给出了改进自抗扰控制的参数整定方法。仿真结果表明,改进自抗扰控制能够提升主蒸汽压力回路的跟踪性能不低于9.18%。此外,在不同负荷下,改进自抗扰控制能够显著提升协调控制系统的抗干扰能力。In this paper,the coordinated control system’s nonlinear model for thermal power units under wide range variable loads was established,including having dynamic parameters of the nonlinear model identified based on on-site data.With the view to improving the coordinated control system’s performance,a direct energy balance control structure based on modified active disturbance rejection control(MADRC)was proposed.In which,the main steam pressure loop adopts MADRC and the load loop employs conventional active disturbance rejection control.In addition,a parameter tuning method for MADRC was present based on extensive simulations.The simulation results show that,the MADRC can improve the main steam pressure loop’s tracking performance by no less than 9.18%.In addition,MADRC can significantly enhance the anti-interference ability of the coordinated control system under different load conditions.

关 键 词：协调控制系统 改进自抗扰控制 火电机组 跟踪性能 抗干扰性能 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]