Influence of stator/rotor-pole combination on electromagnetic performance in all/alternate poles wound partitioned stator doubly salient permanent magnet machines

The Journal of Engineering

Z.Q. Zhu¹  Zhongze Wu¹ 

[1] University of Sheffield;

关键词: stators;    rotors;    permanent magnet machines;    magnetic flux;    electric potential;    finite element analysis;    finite-element analysis;    winding factor;    on-load torque characteristics;    cogging torque density;    EMF;    back-electromotive force;    open-circuit flux-linkage;    PS-doubly salient permanent magnet machine;    all-alternate pole wound partitioned stator DPSM machine;    electromagnetic performance;    stator-rotor-pole machine combination;   

DOI  :  10.1049/joe.2017.0096

来源: DOAJ

【 摘 要 】

In this study, the influence of stator/rotor-pole combinations on electromagnetic performance in partitioned stator doubly salient permanent magnet (PS-DSPM) machines is investigated, in terms of open-circuit flux-linkage, back-electromotive force (EMF), cogging torque and on-load torque characteristics. Analytical deduction shows that by modifying the all poles wound winding to alternate poles wound winding in the 12/11- and 12/13 stator/rotor-pole PS-DSPM machines, the fundamental distribution factor and hence the fundamental winding factor can be enhanced, resulting higher torque density. Consequently, among the 12-stator-pole all and alternate poles wound PS-DSPM machines, the 10- and 11-rotor-pole machines exhibit the highest torque density, respectively. However, the 12/10- and 12/14-pole alternate poles wound PS-DSPM machines suffer from higher phase back-EMF even harmonics, resulting larger torque ripple. The 12/10- and 12/11-pole all and alternate poles wound prototypes are built and tested to verify the finite-element analysis.

【 授权许可】

Unknown