一种简单而有效的SMITH预估补偿控制新方法

A mew effective and simple method of SMITH estimating precompensation control

提出了一种改进型Smith预估补偿控制新方法。在被控对象的输入端施加一阶跃输入信号 ,根据其阶跃响应估计出被控对象的数学模型 ,再根据此估计模型在线地修正Smith预估补偿器 ,从而克服了传统的Smith预估补偿控制方法因模型误差而使控制品质变坏的缺点。

In this paper a new improved control method of SMITH estimating precompensation.Putting a sep-fiction sign to the input of the object controlled is proposed,the mathematic model of the object controlled can be estimated according to the step response.And then by modifying the SMITH estimating precompensator with the estimating model on line,the disadvantage of traditional control method of SMITH estimating precompensation that model error break up control character can be avoided.