典型工业过程的H_∞控制

H_∞ Control for Typical Industrial Processes

利用环路成形Ｈ∞方法对典型工业过程进行Ｈ∞设计．设计表明，典型过程的Ｈ∞控制器可表示为常用控制结构形式（ 如ＰＩＤ＋ 滤波器） ，从而很容易在工程中实现．特别地，本文得到典型过程Ｈ∞控制器参数与过程常数的直接关系，因而实际中可直接使用它们得到Ｈ∞控制器而无需对每个典型过程进行Ｈ∞设计，从而方便过程控制器设计．仿真表明，本文所得Ｈ∞控制器对大时延对象有很好的控制效果。

H ∞ controllers are designed for typical processes using loop shaping H ∞ approach. The results indicate that the structure of the H ∞ controllers for those plants can be expressed in the usual control structure,e.g.,PID+filter,thus can be easily realized in practice. Furthermore, we obtain the direct relation between the parameters of the H ∞ controllers and process constants, thus we can use the parametrization to set up an H ∞ controller without design. Simulations show that the H ∞ controller we obtained has good performance even for processes with large delay, and is robust against the variation of process constants.