永磁同步电机双模型预测转矩控制策略  

A Double Model Predictive Torque Control Strategy for PMSM

作　　者：徐艳平[1] 李园园[1] 周钦[1] XU Yan-ping;LI Yuan-yuan;ZHOU Qin(Xi ＇an University of Technology, Xi ＇an 710048, China)

机构地区：[1]西安理工大学,电气工程系,陕西西安710048

出　　处：《电力电子技术》2018年第6期37-39,共3页Power Electronics

摘　　要：永磁同步电机(PMSM)模型预测转矩控制(MPTC)存在转矩脉动大和计算量较大的问题,通过分析PMSM定子电流与定子磁链的关系,提出了一种双MPTC方法。该方法通过电压矢量选择模型预测控制(MPC)来确定出合适的电压矢量,然后根据占空比优化MPC计算出电压矢量的作用时间。实验结果表明:与传统MPTC相比,双MPTC明显降低了转矩脉动,且减小了计算量。In the permanent magnet synchronous motors （PMSM） model predictive torque control （MPTC） strategy, there are large torque ripples and the complex calculation.Through analysis of the relationship between the stator cur- rent and the flux of the PMSM, a double MPTC method is proposed.In the double MPTC, the preferable voltage vector is determined by the voltage vector selection model predictive control （MPC）, and then the durations of the determined voltage vector is calculated according to the duty cycle optimization MPC.Experimental results clearly demonstrate the proposed method could reduce torque ripples and descrease the amount of calculation.

关 键 词：永磁同步电机 模型预测转矩控制 占空比控制 

分 类 号：TM341[电气工程—电机]