一种新型自调节灰色预测控制器

Novel self-adjustable grey prediction controller

提出一种结合传统反馈控制方法和灰色预测控制的新型自调节灰色预测控制器,可对系统当前输出误差和预测系统输出误差进行合成形成一个综合误差,并用综合误差代替传统反馈控制方法中的实际误差项,这样控制器可根据系统当前和将来的响应来计算控制律.该控制器可根据预测精度来自动调整控制器参数,使控制器对系统响应具有适应性.仿真结果表明,与传统反馈控制方法相比,该控制器可获得更为优良的动态性能和鲁棒性.

Traditional feedback control and grey prediction control are integrated together to build a novel self-adjustable grey prediction controller. The current output error and the predicted output error are combined together to form an integrated error. In the proposed control scheme, the error item in the traditional feedback control is substituted by the integrated error so that the controller can calculate the control law according to both the current output and future output. Furthermore, This controller can automatically adjust controller parameters according to the precision of grey prediction, which makes the controller adaptive to the response of systems. Simulation results show that this controller can achieve better dynamic performance and robustness than traditional feedback control.