基于模型预测和谐振调节器的PMSM电流控制

Current Control Based on Model Predictive and Resonant Controller for PMSM

为了提高永磁同步电机(PMSM)的控制性能,提出了一种基于模型预测控制(MPC)和谐振调节器的电流控制方法。首先,通过建立预测模型和滚动优化,设计PMSM电流预测控制器。然后,针对电流谐波造成的电机转矩脉动问题,在模型预测电流控制方法基础上引入了谐振调节器。实验结果表明,所提方法具有良好的电流动态性能和电流跟踪特性,且能有效地改善电流波形,减小转矩脉动。

A current control method based on model predictive control and resonant controller was proposed to improve the control performance of permanent magnet synchronous motor （PMSM）. Firstly, the current predictive controller for PMSM was designed through predictive model and rolling optimization. Then, for the torque-ripple caused by the current harmonic, the resonant controller was introduced to the predictive controller. The experimental results showed that, the proposed method has good dynamic performance and current tracking performance. It can also improve current waveform and reduce the torque-ripple effectively.