Analysis of Spoke-Type Brushless Dual-Electrical-Port Dual-Mechanical-Port Machine With Decoupled Windings

Ren, Xiang; Li, Dawei; Qu, Ronghai; Kong, Wubin; Han, Xun; Pei, Tonghao

doi:10.1109/tie.2018.2870395

Cited by 37 publications

(13 citation statements)

References 18 publications

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“…Moreover, the power factors of both winding I and winding II of machine I are higher than those of machine III, which are preferable for wind power generation applications. On the other hand, the number of PMs in the outer rotor of machine I is smaller than that of machine III, i.e., 30 (machine I) vs. 40 (machine III), which is desirable for achieving high mechanical strength of the outer rotor and high manufacturing feasibility in the given size, due to the fact that punched holes are required to hold the outer rotor as mentioned in [24], [25]. Accordingly, machine I is selected for further investigation and prototyping.…”

Section: Slot-pole Combination Selectionmentioning

confidence: 99%

Evaluation of a Contra-Rotating Flux- Modulated Machine Featured With Dual Flux-Modulation for Wind Power Generation

Chen

El-Refaie

Zuo

et al. 2022

IEEE Trans. Ind. Electron.

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Section: Slot-pole Combination Selectionmentioning

confidence: 99%

Evaluation of a Contra-Rotating Flux- Modulated Machine Featured With Dual Flux-Modulation for Wind Power Generation

Chen

El-Refaie

Zuo

et al. 2022

IEEE Trans. Ind. Electron.

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“…The machine having odd rotor pole numbers have better potentials in terms of higher reliability than the ones having even rotor pole numbers, owing to their low mutual inductance magnitudes. However, the mutual inductance of an integrated PM machine could be significantly reduced to a negligible value by an appropriate winding design and reasonable stator and rotor pole selections, as established in Ren et al (2019).…”

Section: Inductance Characteristicsmentioning

confidence: 99%

Fault-Tolerant Capability and Torque-Speed Measurements of Permanent Magnet Brushless AC Machines

Awah

Okoro²

2019

Nig. J. Technol. Dev.

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In this paper, the fault-tolerant capability in terms of inductance profile of a dual-stator permanent magnet brushless AC machine is presented. Similarly, its power-speed and torque-speed characteristics are also predicted. Special reference is made to the impact of different rotor pole numbers. A 2D-finite element analysis (FEA) procedure is adopted in this work, and the cross-coupling effect of the machine inductances owing to the influence of direct-axis and quadrature-axis currents is also taken into consideration. The results show that, the investigated machine having odd number of rotor poles would exhibit better fault-tolerant capability compared to their counterparts with even number of rotor poles. Further, the machine having 6-stator slots and 13-rotor poles i.e. 6Slots-13P machine has the greatest field-weakening potential owing to its high full-speed to rated speed relation. The studies also show that, the investigated machines have negligible reluctance torque due to their basically unity saliency ratios obtained from the machines' almost similar quadrature-axis inductance, Lq, and direct-axis inductance, Ld, values.

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“…Research conducted in [16] shows that for a PM machine to yield an optimum performance, there should be a good synergy between its possible stator-rotor pole permutations and its optimal geometric parameters, such as the split ratio, length of PM, length and width of the modulating ring, etc.…”

Section: Introductionmentioning

confidence: 99%

Archives of Electrical Engineering

Awah

2022

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A new double stator permanent magnet machine having two sets of alternating current (AC) windings in separate stators is proposed in this study. The proposed machine is appropriate for low-speed direct-drive applications. 2D-and 3D-finite element analysis (FEA) is adopted in the result predictions. The considered machine elements are: coil and phase flux linkage, coil and phase induced-electromotive force (EMF), copper loss, current density and torque characteristics. The analysis shows that the studied permanent magnet (PM) machine has better electromagnetic performance than its single-stator equivalent. Moreover, the proposed machine has potential for higher reliability if the separate stators are used independently. The effect of design parameters on open-circuit flux linkage and induced-electromotive force, as well as on the average electromagnetic torque of the proposed double stator machine is also presented. It is observed that for each of the investigated design variables, there is a need to select the optimal value in order to achieve the best average torque. The investigated design parameters are: the split ratio, magnet thickness, rotor radial thickness, inner stator tooth-width, rotor inner and outer iron-width/pitch ratio, and stator yoke size.

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Analysis of Spoke-Type Brushless Dual-Electrical-Port Dual-Mechanical-Port Machine With Decoupled Windings

Cited by 37 publications

References 18 publications

Evaluation of a Contra-Rotating Flux- Modulated Machine Featured With Dual Flux-Modulation for Wind Power Generation

Evaluation of a Contra-Rotating Flux- Modulated Machine Featured With Dual Flux-Modulation for Wind Power Generation

Fault-Tolerant Capability and Torque-Speed Measurements of Permanent Magnet Brushless AC Machines

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