摘要
为了研究轴向磁场磁通切换永磁(AFFSPM)电机在恒转矩和恒功率区域的运行性能,分析了AFFSPM电机的结构特征,推导了AFFSPM电机的数学模型.基于矢量控制建立了AFFSPM电机的驱动系统.在恒转矩区域,采用了最大转矩电流比(MTPA)控制策略,并与id=0控制进行了对比;在恒功率区域,采用了一种基于电感补偿且保持q轴反电势不变的弱磁控制策略,并与普通弱磁控制进行了对比.仿真与实验结果表明,MTPA控制可以减小AFFSPM电机的铜耗.基于电感补偿的弱磁控制可以拓宽AFFSPM电机的恒功率运行范围,提高了AFFSPM电机运行性能,且AFFSPM电机轴向长度短、转子结构简单,因此比较适合用作电动汽车轮毂电机.
In order to study operating performance of axial field flux-switching permanent magnet （AFFSPM）machine in constant torque and constant power region,the structure and characteristics of AFFSPM are analyzed.The mathematical model of AFFSPM machine is deduced and a drive system is established based on vector control.The maximum torque per ampere control （MTPA）is employed in constant torque region and compared with id =0 control.In constant power region,the inductance compensation with constant q-axis back-EMF （back electromotive force）flux-weakening control is employed and compared with general flux-weakening control.The simulations and experimental analyses are carried out.The results show that copper loss is decreased due to MTPA control and the constant power region is broadened due to the inductance compensation.The machine is very suitable for in-wheel motor of the electric vehicle because of its shorter length and simple rotor structure.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第5期929-934,共6页
Journal of Southeast University：Natural Science Edition
基金
国家自然科学基金资助项目(50977010
51277025)
江苏省科技计划资助项目(BE2011140)
高等学校博士学科点专项科研基金资助项目(20120092110041)
关键词
AFFSPM
最大转矩电流比
弱磁
电动汽车
axial field flux-switching permanent magnet machine （AFFSPM）
maximum torque per ampere （MTPA）
flux-weakening
electric vehicle
