一种改进的主汽温Smith预估补偿控制  

An Improved Smith Estimation Control for Main Steam Temperature

作　　者：崔晓波[1] 王明春[1] 张雨飞[1] 

机构地区：[1]东南大学能源与环境学院,江苏南京210096

出　　处：《锅炉技术》2011年第4期23-26,共4页Boiler Technology

摘　　要：针对火电厂主汽温控制系统大惯性、大延迟且模型不确定,以及常规PID控制难以取得良好的控制效果等特点,设计的主汽温控制系统将变速积分与自适应Smith预估补偿控制相结合,得到一种易于工程实现,且具有较大的应用价值的自适应Smith控制器。通过Matlab仿真,该系统具有较强的鲁棒性和很好的控制品质,适合具有时滞的复杂控制系统。Main steam temperature control system in thermal power plant is a system with large time constant,long time-delay,the uncertainty of the object and traditional PID control can＇t satisfy the performance required.This paper design a main steam temperature control system though combining variable-speed integral PID control with adaptive Smith estimation control.The improved Smith controller received above is easy to implement and has a application value.Through the Matlab simulation,it shows that the control system has strong robustness and good quality for the complex and time-delay control systems.

关 键 词：自适应 SMITH预估补偿 主蒸汽 滞后 PID 

分 类 号：TK223.7[动力工程及工程热物理—动力机械及工程]