中文摘要：

提出了一种基于一步延时干扰估计和幂次函数的离散滑模控制方法,并将研究结果用于设计永磁同步电动机调速系统。通过引入一步延时干扰估计来估计当前时刻的干扰,实现对干扰的实时补偿,引入幂次函数消除了系统的抖振。理论分析表明,所设计的控制器消除了系统抖振,并使调速系统具有良好的跟踪能力和强鲁棒性.仿真和实验结果验证了该方法的有效性。

英文摘要：

A new method for discrete sliding mode control based on one step delayed disturbance estimation and the power-function was presented, which was applied to design a permanent magnet synchronous motor （PMSM） speed control system. One step delayed disturbance estimation was introduced to estimate and compensate the present disturbance value. The power-function was applied to eliminate the chattering of the system. Theoretical analysis shows that the controller designed can eliminate the chattering and provide the speed control system with perfect tracking ability and strong robustness. Simulation and experiment results verify its validity.