基于虚拟电压矢量的永磁同步电机模型预测转矩控制  

Model Predictive Torque Control of Permanent Magnet Synchronous Motor Based on Virtual Voltage Vector

作　　者：杨狂彪 马静子 叶云翀 陈鼎新 石坚 YANG Kuangbiao;MA Jingzi;YE Yunchong;CHEN Dingxin;SHI Jian(School of Mechanical and Electrical Engineering,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学机械与电气工程学院,广州510006

出　　处：《微特电机》2024年第8期48-52,57,共6页Small & Special Electrical Machines

基　　金：国家自然科学基金(51507097)。

摘　　要：针对传统永磁同步电机有限控制集模型预测转矩控制(FCS-MPTC)中的电流波动较大,提出了一种基于虚拟电压矢量的永磁同步电机模型预测转矩控制(VFCS-MPTC),该策略扩展了候选电压矢量控制集。与传统的FCS-MPTC相比,VFCS-MPTC在保持恒定开关频率的同时,较大降低了转矩纹波和电流谐波。采用了一种新的电压矢量优化选取策略,将候选电压矢量的数量从38个减少到9个,VFCS-MPTC在不影响控制性能的情况下显著降低了计算负担。通过仿真对比验证了VFCS-MPTC的有效性。In view of the large current fluctuations in the traditional permanent magnet synchronous motor finite control set model predictive torque control(FCS-MPTC),a finite control set model predictive torque control method that reduces current fluctuations was proposed.The permanent magnet control set model predictive torque control method based on virtual voltage vector(VFCS-MPTC)was proposed.which expanded the set of candidate voltage vector controls.Compared with conventional FCS-MPTC,VFCS-MPTC reduced torque ripple and current harmonics while maintaining a constant switching frequency.A new voltage vector optimization selection strategy was adopted to reduce the number of candidate voltage vectors from 38 to 9.The proposed VFCS-MPTC reduced the computational burden without affecting the control performance.The effectiveness of VFCS-MPTC was verified through simulation comparison.

关 键 词：永磁同步电机 模型预测控制 虚拟电压矢量 矢量优化 降低计算负担 

分 类 号：TM351[电气工程—电机] TM464