新型的Smith自适应辨识控制算法

New Smith Adaptive Identification Control Algorithm

针对参数缓慢变化的时滞对象,按照模型参考辨识的设计思想,将时滞对象看作一个被辨识过程,用广义误差e经过自适应辨识器在线调整Smith预估器,使其与时滞对象的动态过程尽可能一致。利用超稳定性理论,设计出了在较大范围内被控对象参数可变的Smith自适应辨识器,并进行了仿真。结果表明,该控制算法取得了良好的控制效果,并且对于任何参数缓慢变化的时滞对象,均可用Smith自适应辨识控制算法加以控制。

In accordance with the time-lag objects with slowly varying parameters, based on the design concept of model reference identification, the time-lag objects are treated as an identified process, by using generalized error, through adaptive identifier, the Smith predictor is adjusted on line, to make it consistent with the time-lag objects. With hyper-stability theory, the Smith adaptive identifier of the time-lag objects that the parameters change in wider range has been designed and emulated. The result indicates that the control algorithm offers better control effects; and any time-lag objects can be controlled by Smith adaptive identification algorithm.