摘要
铁氧体、钕铁硼混合永磁同步磁阻电机相对铁氧体永磁同步磁阻电机,具有较高的永磁磁链,提高了功率密度尤其是弱磁运行时的功率密度,但一定程度上降低了高速、低转矩区的效率。为此,在铁氧体、钕铁硼混合永磁同步磁阻电机的基础上采用一定量的铝镍钴替代钕铁硼,设计成混合永磁同步磁阻记忆电机,在不降低电机弱磁运行功率的情况下,对不同工况下的永磁磁链进行调节,采用铁氧体、钕铁硼和铝镍钴三种永磁材料混合,可有效提高混合永磁同步磁阻电机高速、低转矩区效率。从维持弱磁运行功率和永磁磁链调节两方面对铝镍钴和钕铁硼的相对用量进行设计,对永磁磁链的调节过程和效率分布进行分析,证明了所设计的电机拓宽了高效率区范围,并分析了相关电磁特性。
Due to the relatively high permanent magnet flux linkage of ferrite,NdFeB hybrid permanent magnet synchronous reluctance motor,compared with ferrite permanent magnet synchronous reluctance motor,improves the power density,especially in flux-weakening operation,but reduces the efficiency in high-speed and low torque area to a certain extent.In response to the issue,based on the ferrite and Nd-FeB hybrid permanent magnet synchronous reluctance motor,a certain amount of AlNiCo was used to replace Nd-Fe-B,and a hybrid permanent magnet synchronous reluctance memory motor was designed.Without reducing the flux-weakening operation power of the motor,through the adjustment of permanent magnet flux linkage under different working conditions,it is concluded that using a mixture of three permanent magnet materials:ferrite,NdFeB(Neodymium iron boron)and AlNiCo(Aluminum nickel cobalt)can effectively improve the efficiency of the hybrid permanent magnet synchronous reluctance motor in the high-speed and low torque regions.The relative amount of AlNiCo and NdFeB was designed from the two aspects of maintaining the flux-weakening operation power and permanent magnet flux regulation.The regulation process of permanent magnet flux and efficiency distribution were analyzed.It proves that the designed motor widens the range of high efficiency area,and the relevant electromagnetic characteristics were analyzed.
作者
董婷
曹磊
王雪
DONG Ting;CAO Lei;WANG Xue(College of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China;Kede Numerical Control Co.,Ltd.,Dalian 116600,China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2023年第5期28-36,共9页
Electric Machines and Control
基金
国家自然科学基金(52177054)。
关键词
混合永磁同步磁阻电机
记忆电机
效率分布
功率密度
转矩特性
hybrid permanent magnet synchronous reluctance motor
memory motor
efficiency distribution
power density
torque characteristic
