带扰动补偿的离散滑模SPMSM模型预测电流控制

发布时间：2018-05-02 08:50

  本文选题：永磁同步电机(PMSM) + 模型预测控制(MPC)　； 参考：《信息与控制》2017年02期

【摘要】：针对永磁同步电机模型预测电流控制的调速系统往往会出现运行不稳定,在受到外部扰动时速度波动较大这一现象,提出了带负载扰动观测的离散滑模控制永磁同步电机模型预测电流控制方法.在表面式永磁同步电机模型预测电流控制算法研究的基础上,设计了离散滑模速度控制器取代比例—微分(PI)调节器,抑制了超调,提高了系统的启动性能.提出了离散滑模扰动观测器并对负载进行前馈补偿,有效的抑制了外部的扰动,提高了系统的鲁棒性.通过仿真验证了该控制策略可提高系统的动态性能和稳态精度.
[Abstract]:According to the model of permanent magnet synchronous motor (PMSM), it is predicted that the speed regulation system controlled by PMSM will be unstable in operation, and its speed fluctuates greatly when it is disturbed by external disturbance. A model predictive current control method for PMSM based on discrete sliding mode control with load disturbance observation is proposed. Based on the research of model predictive current control algorithm for surface permanent magnet synchronous motor, a discrete sliding mode speed controller is designed to replace the proportional differential PI controller, which can restrain overshoot and improve the system startup performance. A discrete sliding mode disturbance observer is proposed and feedforward compensation for the load is proposed, which effectively restrains the external disturbance and improves the robustness of the system. The simulation results show that the control strategy can improve the dynamic performance and steady-state precision of the system.
【作者单位】： 辽宁工程技术大学电气与控制工程学院;国网葫芦岛供电公司;
【基金】：辽宁省博士启动基金资助项目(20111054)
【分类号】：TM341;TP273
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本文编号：1833223