Low costs and high-efficiency electric machines

Dajaku, Gurakuq; Gerling, Dieter

doi:10.1109/edpc.2012.6425093

Cited by 72 publications

(45 citation statements)

References 11 publications

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“…The topologies of modular and UNET machines used for analytical modelling in this paper are similar to that been investigated in [7] and [9], as shown in Fig. 1.…”

Section: Features Of Modular and Unet Machinesmentioning

confidence: 99%

“…2. As a result, the permeance in stator slot openings can be calculated by (7) By way of example, the relative air-gap permeances for machines have been analytically calculated using equations from (3) to (7), as shown in Fig. 3.…”

Section: Features Of Modular and Unet Machinesmentioning

confidence: 99%

“…1 (a) and (c), machine parameters are given in TABLE I] has been first introduced in [7] and been comprehensively investigated in [8] and [9] by using 2D FE modelling. Different slot/pole combinations have been compared and a general rule has been established: for machines with slot number (N s ) higher than pole number (2p, p is pole pair number), the flux gaps deteriorated the machine performances such as reducing the average torque.…”

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confidence: 99%

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Analytical Modeling of Modular and Unequal Tooth Width Surface-Mounted Permanent Magnet Machines

Zhu

2015

IEEE Trans. Magn.

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Article:Li, G.J. orcid.org/0000-0002-5956-4033 and Zhu, Z.Q. orcid.org/0000-0001- 7175-3307 (2015) ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.

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“…The topologies of modular and UNET machines used for analytical modelling in this paper are similar to that been investigated in [7] and [9], as shown in Fig. 1.…”

Section: Features Of Modular and Unet Machinesmentioning

confidence: 99%

Section: Features Of Modular and Unet Machinesmentioning

confidence: 99%

mentioning

confidence: 99%

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Analytical Modeling of Modular and Unequal Tooth Width Surface-Mounted Permanent Magnet Machines

Zhu

2015

IEEE Trans. Magn.

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“…In [8], additional windings were placed on the stator to achieve brushless operation, but this increased the overall area of the stator. Higher harmonics of the stator MMF were used for rotor excitation in [9] and [10], and this method resulted in brushless operation at the cost of increased losses due to the higher harmonic generation. In [11], brushless operation was achieved by generating a third harmonic zero sequence current in the stator windings by operating switches that were connected in parallel with each phase winding.…”

Section: Introductionmentioning

confidence: 99%

“…The WRSM requires brushes and slip rings, which need maintenance and can experience losses and sparking. Different brushless techniques were discussed in [8][9][10][11] with a goal of overcoming the problems related to brushes and slip rings. In [8], additional windings were placed on the stator to achieve brushless operation, but this increased the overall area of the stator.…”

Section: Introductionmentioning

confidence: 99%

PM Assisted, Brushless Wound Rotor Synchronous Machine

Ali¹,

Atiq²,

Lipo³

et al. 2016

Journal of Magnetics

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This paper presents a new permanent magnet (PM) assisted topology for a recently introduced brushless wound rotor synchronous machine (BL-WRSM) [1]. The BL-WRSM had a dual-inverter configuration for generating a composite magneto motive force (MMF) with a fundamental component and a subharmonic component. The subharmonic component of the MMF is used for brushless excitation of the rotor. In this paper, additional PMs were introduced on the rotor of the BL-WRSM, making it a hybrid BL-WRSM. We also discussed the flux weakening operation for the hybrid BL-WRSM. The hybrid BL-WRSM offered advantages for starting the machine and provided better performance under full-load conditions. The finite element method (FEM) was used to analyze the performance of the hybrid BL-WRSM, and we compared its performance with BL-WRSM. Finally, prototypes were built with and without the PM-assistance, and experiments were conducted to demonstrate their performance.

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Permanent Magnet Machines for Traction Applications

Zhu

2014

Encyclopedia of Automotive Engineering

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This chapter overviews various permanent magnet (PM) brushless machines for traction applications. PM brushless DC and AC machines and drives are firstly compared in terms of constant torque and constant power capabilities, and their controllability. Various stator winding configurations, rotor topologies, and basic and novel machine topologies, including fractional slot PM, stator PM, and variable flux PM machines, as well as their features are highlighted. Then, alternate methods for enhancing the PM excitation torque and reluctance torque components, and thereby improving the torque and power capability, are described, together with methods for reducing the torque ripples and improving the overload, flux weakening, fault‐tolerant, and demagnetization withstand capabilities.

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Low costs and high-efficiency electric machines

Cited by 72 publications

References 11 publications

Analytical Modeling of Modular and Unequal Tooth Width Surface-Mounted Permanent Magnet Machines

Analytical Modeling of Modular and Unequal Tooth Width Surface-Mounted Permanent Magnet Machines

PM Assisted, Brushless Wound Rotor Synchronous Machine

Permanent Magnet Machines for Traction Applications

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