【摘要】 针对被控系统不满足实现动态输出观测器反馈控制两个充分条件的情况,提出稳定传输零点补偿器的概念.将零点补偿器与被控系统串联,使得整个系统拥有稳定的传输零点.这样就保证可以实现动态输出观测器反馈控制,从而使系统具有很高的鲁棒稳定性.通过实验将基于稳定传输零点补偿器的动态输出观测器反馈控制系统与全维状态观测器反馈控制系统进行了比较.在被控系统参数发生变化的情况下,基于稳定传输零点补偿器的动态输出观测器反馈控制的鲁棒稳定性要明显高于全维状态观测器反馈控制.更多还原

【Abstract】 When a controlled system does not satisfy the sufficient conditions for dynamic output-observer-feedback control,we propose compensating the stable transmission-zero by connecting a cascade compensator to the controlled system.This configuration ensures the realization of dynamic output-observer-feedback control,and improves the robust stability of the closed-loop system.Experiment results show that the robust stability of dynamic output-observer-feedback control with a stable transmission-zero compensator is better than that with the full-order state-observer when the parame-ters of controlled system are perturbed.更多还原