摘要
This paper proposes a new consequent-pole permanent magnet vernier machine(CPMVM),which can be regarded as a combination of two conventional CPMVM with opposite polarities.Based on the simplified axial magnetic circuit model,it is verified that the proposed CPMVM can reduce the unipolar leakage flux.In order to reduce the torque ripple of machine and improve the output torque of machine,the flux barrier is placed on the rotor of the proposed machine.Then,the parameters of the proposed CPMVM are optimized and determined.Moreover,the electromagnetic performance,including no-load air-gap flux density,average torque and torque ripple,flux linkage,back-electromotive force,cogging torque,average torque,torque ripple,power factor and loss,is compared with conventional surface-mounted permanent magnet vernier machine(SPMVM)and CPMVM.Finally,it is demonstrated that proposed CPMVM with flux barrier can effectively reduce the unipolar leakage flux and greatly reduce the torque ripple of machine.Also,compared with the SPMVM,the proposed CPMVM with flux barrier saves more than 45%of the permanent magnet material without reducing output torque.
基金
supported in part by the National Natural Science Foundation of China under Projects 52177044 and 52025073
in part by the China Postdoctoral Science Foundation under Project 2019T120395
in part by Hong Kong Scholars Program under Project XJ2019031
in part by the Natural Science Foundation of Jiangsu Higher Education Institutions under Project 21KJA470004
in part by Qing Lan Project of Jiangsu Province
in part by the Priority Academic Program Development of Jiangsu Higher Education Institutions
