中文摘要：

为解决迟滞非线性对压电陶瓷执行器的影响,提出了基于Preisach逆补偿的闭环控制策略,利用考虑了擦除特性的分类排序方法实现了迟滞的Preisach逆模型,通过Preisach逆模型串联补偿降低迟滞作用的影响,并在逆模型前串联PI控制器,通过闭环控制抑制未能完全补偿的迟滞非线性,进而提高系统的控制精度,平均绝对误差下降到0.025μm.实验表明,基于Preisach逆补偿的迟滞补偿控制策略具有良好的控制性能.

英文摘要：

In order to solve the hysteresis nonlinearity of piezoelectric ceramic actuators,a closedloop control strategy base on Preisach inverse compensation is proposed in this paper.Firstly,an inverse Preisach model was achieved using the sorting taxis realization method.And the inverse model was connected in series with the hysteresis of the system to reduce the impact of the hysteresis.Then,a PI controller was designed to attenuate the non-linearity,which could not be compensated by inverse model.Using the designed PI controller,the tracking accuracy could be improved,and the average absolute error decreased to 0.025μm.Experiments show that the inverse Preisach model control strategy has good control performance.