Permanent magnet synchronous motor deadbeat current prediction control system and control method thereof

The invention discloses a permanent magnet synchronous motor deadbeat current prediction control system and a control method thereof. The system comprises a Clark transform module, a Park transform module, a Park inverse transform module, a pulse width modulation module, an inverter module, a position sensor, a deadbeat controller, a disturbance observer, a first comparator, a second comparator, aPI regulator, a first gain module, a second gain module, and a third gain module. The invention introduces a load disturbance observer for feedforward compensation based on the traditional deadbeat prediction control. Under the compensation of the disturbance observer, the deadbeat current prediction control system not only has superior dynamic performance but also exhibits strong robustness. 本发明公开了一种永磁同步电机无差拍电流预测控制系统及其控制方法，系统包括Clark变换模块、Park变换模块、Park逆变换模块、脉冲宽度调制模块、逆变器模块、位置传感器、无差拍控制器、扰动观测器、第一比较器、第二比较器、PI调节器、第一增益模块、第二增益模块和第三增益模块。本发明在传统无差拍预测控制的基础上，引入一种负载扰动观测器用于前馈补偿。在扰动观测器的补偿作用下，无差拍电流预测控制系统不仅具有优越的动态性能，且表现出更强的鲁棒性。