摘要
为满足电动车在驱动过程中对电机的控制精度及快动态响应的要求,在PMSM矢量控制系统框架下,研究基于滑模观测器PMSM模型预测控制方法。结合模型预测控制原理,设计预测速度控制器,提高了电流环跟踪精度和电机启动性能。设计离散滑模扰动观测器,有效地估计了外部扰动并对系统进行前馈补偿,提高了系统的鲁棒性。通过仿真实验验证了方法的有效性。
In order to meet the requirements of electric vehicle＇s control accuracy and fast dynamic response in driving process, a PMSM model predictive control method based on sliding mode observer is studied under the framework of PMSM vector control system. Combined with the model predictive control principle, the predictive speed controller is designed to improve the tracking precision of current loop and the starting performance of the motor. The discrete sliding mode disturbance observer is designed to effectively estimate the external disturbance and feed forward compensation to the system, which improves the robusmess of the system. Finally, the effectiveness of the method is verified by the simulation experiment.
出处
《电动工具》
2018年第1期21-24,26,共5页
Electric Tool
关键词
永磁同步电机
模型预测控制
扰动观测器
鲁棒性
Permanent magnet synchronous motor
Model predictivecontrol
Disturbance Observer
Robustness
