A novel asymmetric interior permanent magnet (AIPM) machine is proposed in this paper. The machine's rotor consists of asymmetric poles and auxiliary flux barriers. The torque ripple of the machine is weakened by the asymmetric design of the left and right sides of the magnetic poles. The magnetic-field-shifting (MFS) effect improves the electromagnetic torque after adding the auxiliary flux barrier to shift the magnetic axis. The influence of critical geometrical parameters on the electromagnetic performance of the machine is investigated under the condition that the stator and permanent magnet volume remain unchanged. The relevant geometrical parameters of the machine are optimized and designed through the improved Taguchi method. The performance of the AIPM machine and the conventional machine under no-load and load conditions are further compared by simulation analysis with finite elements, verifying the increase in electromagnetic torque and the reduction in torque ripple. © 2024 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

中文翻译：

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一种带有辅助磁通屏障的新型非对称内置永磁电机

本文提出了一种新型非对称内置永磁（AIPM）电机。该机器的转子由不对称磁极和辅助磁通屏障组成。通过左右磁极的不对称设计，削弱了机器的扭矩脉动。添加辅助磁通屏障移动磁轴后，磁场移动（MFS）效应提高了电磁扭矩。在定子和永磁体体积不变的情况下，研究了关键几何参数对电机电磁性能的影响。通过改进田口法对机床相关几何参数进行优化设计。通过有限元仿真分析，进一步比较了AIPM电机与传统电机在空载和负载条件下的性能，验证了电磁扭矩的增加和扭矩脉动的减少。 © 2024 日本电气工程师协会和 Wiley periodicals LLC。