Investigation of Air-Gap Field Modulation Effect in Spoke-Type PM Machines

Li, Ya; Zhou, Qinglin; Ding, Shichuan; Li, Wei

doi:10.1109/tte.2022.3202042

Cited by 9 publications

(5 citation statements)

References 37 publications

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“…Because an auxiliary magnet can completely cancel the leakage flux, it is more effective than the method proposed in Refs. (9) and (10), and a significant torque improvement can be observed. To apply the method described in Ref.…”

Section: Introductionmentioning

confidence: 88%

“…(7) and (8) and must be solved to achieve higher performance of spoke-type IPM motors. Several previous studies have reported suppression of the leakage flux (9)(10)(11)(12) . Refs.…”

Section: Introductionmentioning

confidence: 90%

“…Refs. (9) and (10) reported that torque characteristics can be improved by forming flux barriers around the inner-side core. However, the improvement is limited because the method described in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…However, the improvement is limited because the method described in Ref. (9) cannot completely eliminate the inner-side core. References (11) and (12) proposed a structure with an auxiliary magnet to cancel the leakage flux.…”

Section: Introductionmentioning

confidence: 99%

“…The motor structure described in Refs. (9) and (11) were selected as conventional, and the characteristics of these motors were compared with those of the proposed structure to clarify its effectiveness.…”

Section: Introductionmentioning

confidence: 99%

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Torque Improvement in Spoke-Type Interior Permanent Magnet Motors Using Resin-Unit-Type Shaft Fastening Structures

Nakagoshi,

Hidaka

2024

IEEJ Journal IA

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This paper presents a novel rotor structure for spoke-type interior permanent magnet motors. In the proposed motor, the rotor is fastened to the shaft using a resin unit. Thus, the inner-side core, which is the leakage path for the magnetic flux, can be eliminated. As a result, the torque density of the proposed motor can be improved compared with that of conventional motors without increasing the magnet volume. A numerical verification was performed using the finite element method to validate the effectiveness of the proposed structure. Moreover, the proposed structure was experimentally verified using a prototype motor. The results of numerical and experimental verifications indicate that the proposed structure could improve the torque density without increasing the magnet volume.

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Section: Introductionmentioning

confidence: 88%

“…(7) and (8) and must be solved to achieve higher performance of spoke-type IPM motors. Several previous studies have reported suppression of the leakage flux (9)(10)(11)(12) . Refs.…”

Section: Introductionmentioning

confidence: 90%