Model-free current prediction control method of permanent magnet synchronous motor for low-rotating-speed working condition

The invention provides a permanent magnet synchronous motor model-free current prediction control method for a low-rotating-speed working condition, which is characterized in that the characteristics of a motor under the low-rotating-speed steady-state working condition are analyzed, a current prediction control model is approximately simplified, and meanwhile, the current prediction control model is optimized on the basis of online real-time data acquisition of stator current and voltage. And unknown model parameters in the simplified model are calculated, so that the problem that a prediction control algorithm seriously depends on the parameters of the mathematical model of the motor can be effectively avoided, and the current control robustness, the current prediction control precision and the like of the surface-mounted permanent magnet synchronous motor under the low-rotating-speed steady-state working condition are obviously improved. 本发明提供了一种针对低转速工况的永磁同步电机无模型电流预测控制方法，基于对电机在低转速稳态工况下的特性进行分析，并由此对电流预测控制模型进