永磁同步电机磁阻转矩的有效利用及其预测控制系统

Effective Exploitage of the Reluctance Torque and Its Predictive Control System on Permanent-Magnet Synchronous Motors

对于ρ＞1的PMSM，有效地利用磁阻转矩实现最大转矩／电流控制，改善了外功率因数，提高了电机出力，将IMC应用于PMSM电流环控制，极大地改善了系统性能，且控制器只有一个可调参数，使设计过程简化。综合MAC在线实时预测、优化、反馈校正的优点，将MAC应用于PMSM的速度控制，系统算法简易，性能优良，鲁棒性强，对PMSM模型的精度要求很低，允许模型有较大失配。仿真和实验结果表明，PMSM预测控制系统具有优良的动态、静态特性。

To increase the power factor and to raise the maximum admissible torque, we exploit thereluctance torque of permanent-magnet synchronous motor (PMSM) which salinency ratio is higher than one.Internal model control (IMC) is applied to PMSM curent control, which improves system's performance andmake controller expressed directly in an adjustable parameter, this simplilies the design procedure.Synthesizing the advantages of model algorithmic control (MAC) in prediction, ootimization and feedback online real time, MAC is applied to PMSM speed control, Which only need fow precision model, and system isof better performance and stronger robustness. The simulation and experimental results verify the proposedcontrol scheme, and show that PMSM predictive control system is of the best dynamics and statics.