基于虚拟合成矢量的六相永磁同步电机模型预测电流控制  

Model Predictive Current Control for Six-phase Permanent Magnet Synchronous Motor Based on Virtual-vector

作　　者：郭宝双 王爱元[1] 张言纯 李恒 GUO Baoshuang;WANG Aiyuan;ZHANG Yanchun;LI Heng(Shanghai Dianji University, Shanghai 201306, China)

机构地区：[1]上海电机学院,上海201306

出　　处：《微电机》2020年第10期42-46,共5页Micromotors

摘　　要：为了抑制六相永磁同步电机的谐波电流,提高电机控制性能,提出了一种基于虚拟合成矢量的模型预测电流控制方式。相比传统矢量控制,模型预测控制提高了系统的动态跟踪性能;结合谐波子空间矢量作用性能合成虚拟电压矢量,代替传统基本矢量进行矢量评估,降低了谐波电流;对虚拟电压矢量采用占空比控制方式,结合零矢量进行控制,进一步提升控制精度。仿真结果表明该方法显著降低了谐波电流,具有良好的动态性能及控制精度。In order to suppress the harmonic current and improve the control performance of six-phase PMSM,a model predictive current control method based on virtual synthesis vector was proposed.Compared with traditional vector control,MPC improves the dynamic tracking performance of the system.Combined with the function of harmonic subspace vector,the virtual voltage vector was synthesized to replace the traditional basic vector to evaluate the vector and reduce the harmonic current.The virtual voltage vector was controlled by duty cycle control mode and zero vector to further improve the control accuracy.The simulation results show that the method can significantly reduce the harmonic current,and has good dynamic performance and control accuracy.

关 键 词：永磁同步电机 模型预测控制 占空比控制 虚拟电压矢量 六相电机 

分 类 号：TM341[电气工程—电机] TM351