【摘要】 针对时滞过程控制对象 ,提出了一种鲁棒二自由度Smith预估控制方法。在常规Smith预估控制系统中 ,引入基于内模控制原理的鲁棒控制器 ,构成一种二自由度控制结构 ,能有效地抑制被控过程参数变化和干扰对系统的影响 ,使系统同时获得良好的控制性能和鲁棒性 ,克服了常规Smith预估控制的不足 ,而且控制算法简单 ,便于实际系统应用。理论分析和仿真结果表明了这种方法的有效性更多还原

【Abstract】 A robust two-degree-of-freedom (2DOF) Smith predictor control scheme for time-delay process system is proposed to improve the performance of the conventional Smith predictor. The proposed control scheme, having two-degree-of-freedom, consists of the conventional Smith predictor and robust controller based on internal model control (IMC) principle. It can effectively reject parameter variations and disturbance. Good dynamic response performance and robustness can be achieved simultaneously. The control algorithm is simple, and can be realized easily. Theoretical analysis and simulation results have shown the validity of the proposed control scheme.更多还原