H_∞ 控制理论在过热汽温控制中应用的研究

H ∞ CONTROL THEORY AND ITS APPLICATION STUDY IN TEMPERATURE CONTROL SYSTEM

研究了具有延滞不确定系统的鲁棒控制问题．指出该问题可以统一在Ｈ∞框架下进行处理．讨论了权函数的选择，求解Ｈ∞鲁棒ＰＩＤ控制器，并对锅炉过热汽温控制进行了仿真研究，结果表明本文的设计方法是有效的．

This paper presents the robust control of uncertain systems with a time delay.It is pointed out that this problem can be solved under a unified H ∞ frame.The selections of weighting functions are discussed,and the H ∞ robust PID controller is solved.The simulations for the temperature cotrol system are studied.The results show that the proposed method is valid.