基于多工作点模型的高精度鲁棒伺服控制器设计

为了满足永磁同步电动机伺服系统的高精度应用需求,提出了一种基于多工作点模型的鲁棒控制器设计方法。该方法首先进行标称控制器设计,利用反馈线性化将电机模型变换为含有等价干扰的线性模型,并设计线性控制律,让标称控制系统跟踪参考输出信号,然后设计鲁棒补偿器,抑制等价干扰的影响,最后利用不同工作点的设计结果,确定最终鲁棒控制器参数。理论证明了该文闭环控制系统的鲁棒稳定性和鲁棒跟踪特性。实验结果表明所设计的鲁棒伺服控制系统在不同工作点下均具有期望的鲁棒转速跟踪特性和扰动抑制特性。

High precision robust servo controller design based on a multi-operating point model

A robust controller for a high precision surface mounted permanent magnet synchronous motor(PMSM) servo system was designed based on a multiple operating point model.The PMSM model is transformed into a linear model for an equivalent disturbance using feedback linearization.A linear control law is then given to force the nominal model to track the reference output.Then,a robust compensator is designed to restrain the influence of the equivalent disturbance.The final controller parameters are determined from...