带有微分-跟踪器的无模型自适应控制研究

Research of Model Free Adaptive Controller with Differential Tracker

针对抄纸过程中水分定量系统控制的强耦合、时滞、不确定特点,将微分-跟踪器用于无模型自适应控制器(Mode Free Adaptive)中。结合二者的优点,设计出适合于非线性、强耦合、时滞、不确定复杂系统的控制器。该控制器利用微分-跟踪器安排过渡过程,此过程实现了对强干扰,大时滞的快速无超调控制。并且与带有smith预估器的PID控制器进行了仿真比较,该控制器对大时滞,强耦合过程具有良好的输出跟踪性能,有很强的自适应能力,鲁棒性,以及独特的控制能力。

It presents a Model Free Adaptive Controller （MFA）with differential tracker to aim at the strongly coupled, dead time, uncertain in the control system of moisture quantitation in papermaking process. Combining the virtues of them, a new tracker is designed to be fit for the controller of non- linear, strongly coupled and uncertain system. The tracker realizes fastly control of big dead time and strong disturbance using the transition of differential tracker without overshoot. From the comparison with the PID controller of smith predictor, the MFA behaves well in output track, shows strongly adaptive and robust characteristic and unique control ability.