永磁超环面电机优化三矢量模型预测电流控制  

Optimization three-vector-based model predictive current control for permanent magnet toroidal motor

作　　者：刘欣[1,2] 王正阳 王晓远 LIU Xin;WANG Zhengyang;WANG Xiaoyuan(Tianjin Key Laboratory of Modern Electromechanical Equipment Technology,Tiangong University,Tianjin 300387,China;School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津工业大学天津市现代机电装备技术重点实验室,天津300387 [2]天津大学电气自动化与信息工程学院,天津300072

出　　处：《北京航空航天大学学报》2024年第11期3297-3309,共13页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(51875408);天津市研究生科研创新项目(2021YJSB229)。

摘　　要：为提高传统预测电流控制下永磁超环面电机系统的稳态输出性能,研究了永磁超环面电机优化三矢量模型预测电流控制(OTV-MPCC)策略。基于永磁超环面电机的结构原理,在旋转坐标系下建立该电机具有时变参数的数学模型,分析结构参数对电机输出的影响。针对含有时变参数的永磁超环面电机系统,采用永磁超环面电机OTV-MPCC策略,在一个采样周期内作用3个电压矢量,同时通过遍历5种三矢量组合选取第二最优电压矢量,减少电流预测迭代。将永磁超环面电机OTV-MPCC策略与占空比模型预测电流控制(DR-MPCC)策略、双矢量模型预测电流控制(TV-MPCC)策略进行仿真对比,结果表明:OTV-MPCC策略可有效降低永磁超环面电机的电流与转矩脉动,提高稳态输出性能。To improve the steady-state output performance of permanent magnet toroidal motor system with traditional predictive current control,the optimization three-vector-based model predictive current control(OTVMPCC)strategy for toroidal motor was studied in this paper.A mathematical model of a toroidal motor with timevarying parameters was created in a rotating coordinate system,based on the structural principle of a toroidal motor.The influence of structural parameters on output was analyzed for toroidal motor.For toroidal motor system with time-varying parameters,the OTV-MPCC strategy was adopted.Three voltage vectors were applied in one sampling period.In the meantime,the current prediction iteration is decreased by selecting the second optimal voltage vector through a traversal of five groups of three vector combinations.Three strategies for toroidal motors were simulated and compared:the OTV-MPCC approach,the duty ratio model predictive current control(DR-MPCC)strategy,and the two-vector-based model predictive current control(TV-MPCC)method.The research results show that OTVMPCC strategy can reduce current and torque ripple for toroidal motor effectively,and it can improve steady-state output performance.

关 键 词：永磁超环面电机 优化三矢量 模型预测控制 时变参数 电流控制 

分 类 号：TM351[电气工程—电机]