积分对象的预测函数控制及其性能分析

基于过程脉冲响应设计预测函数控制器,针对积分过程输入端受到干扰后难以跟踪设定值的缺点,运用最优控制思想设计抗干扰控制器,所设计系统具有双自由度的控制结构.所提算法能同时适用于反向响应积分对象和大时间滞后积分对象的控制.仿真实验表明,该方法对过程参数摄动具有良好的鲁棒性及抑制外界干扰的能力.

Predictive Functional Control for Integrating Processes and the Performance Analysis

On the basis of impulse response of the integrating processes, a predictive functional control algorithm was proposed, and a load rejection controller was designed by optimal control theory so that the desinged control system can track setpoint without steady state error in the presence of input disturbance. The presented algorithm can deal with the control of the inverse response integrating process and the integrating process with large time delay. Examples were given to illustrate that the proposed method has good robustness and the capability for rejecting external disturbance.