中文摘要：

为了抑制模型摄动及外部干扰对永磁同步电动机（PMSM）交流伺服系统的影响，根据永磁同步电动机的鲁棒控制模型设计了鲁棒H∞反馈控制器，采用鲁棒H∞反馈控制器对电流环的电流突变进行了补偿，减少了负载阻力、端部效应等外部扰动对系统性能的影响。仿真结果表明：鲁棒H∞控制具有良好的鲁棒稳定性和抗干扰性。

英文摘要：

In order to restrain affect which the model perturbance and the external disturbance bring to the permanent magnet synchronous motor （PMSM） AC servo system, robust H∞ feedback controller was designed according to the PMSM robust control model. The robust H∞ feedback controller was used to compensate the current mutation of current loop, and the impact which external disturbances such as load resistance and end effect brought to system was decreased. Simulation results show that robust H∞ control has good robustness and immunity.