离散PID控制器参数的最优设置

Optimal Setting for Discrete PID Controller Parameters

提出了一种利用优化方法获得具有随机扰动的离散系统ＰＩＤ控制器参数的最优设置。利用状态空间方法，通过对控制系统的输出方差最小化来获得最优的Ｋ＿ｐ、Ｋ＿ｉ、Ｋ＿ｄ．仿真结果表明了这种方法的正确性。

An approach to obtain optimal PID setting for discrete stochastic process is presentedby using the optimum theory.The optimal PID parameters(K_p,K_1,K_d)are gained byminimising the output variance of the cloosed-loop state-space process model.Calculationand simulation results show that the proposed method is effective.