永磁超环面电机最大转矩电流比矢量控制  

Maximum Torque per Ampere Vector Control of 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设备技术重点实验室,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：《电力系统及其自动化学报》2023年第5期152-158,共7页Proceedings of the CSU-EPSA

摘　　要：为充分利用永磁超环面电机的电磁转矩,研究了超环面电机最大转矩电流比MTPA(maximum torque per ampere)矢量控制系统。首先,分析了超环面电机蜗杆内定子变截面的结构特点和行星轮磁齿的运动规律,推导了永磁超环面电机驱动系统的时变数学模型;然后基于极值原理和公式法,得到永磁超环面电机输出转矩与交直轴电流的函数关系;结合闭环反馈得到行星轮转子的位置信息,搭建了该电机的MTPA控制系统,并对MPTA控制策略下的超环面电机响应性能进行了仿真分析。仿真结果表明,MTPA控制策略能够提高超环面电机电磁转矩的利用率,有效降低该电机的功率损耗,同时该控制系统具有良好的抗扰性能以及对参数变化的鲁棒性。To take full advantage of the electromagnetic torque in a permanent magnet toroidal motor,its maximum torque per ampere(MTPA)vector control system is studied.First,the variable cross-section characteristics of worm in⁃ner stator and the movement of magnetic teeth on planet are analyzed,and a time-varying mathematical model of the permanent magnet toroidal motor is deduced.Then,based on the extremum principle and formula method,the relation⁃ship between the output torque and quadrature-direct axis currents is derived for the motor.With the combination of the position information of planet rotor obtained by the closed-loop feedback,the MTPA control system of this motor is built.In addition,the response performances of the toroidal motor are simulated and analyzed under the MTPA control strategy.Simulation results show that the MTPA control strategy can improve the utilization of electromagnetic torque of the toroidal motor and reduce its power loss effectively.Meanwhile,the proposed control system has a satisfying anti-in⁃terference performance and robustness for parameter variation.

关 键 词：超环面电机 最大转矩电流比控制 矢量控制 极值原理 

分 类 号：TM351[电气工程—电机]