Accounting for the Armature Magnetic Reaction and Saturation Effects in the Reluctance Model of a New Concept of Claw-Pole Alternator

Ibala, Amina; Masmoudi, Ahmed

doi:10.1109/tmag.2010.2055882

Cited by 41 publications

(20 citation statements)

References 10 publications

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“…Furthermore and referring to Ibala and Masmoudi (2010a), it has been shown that a claw pole machine with DC-excitation in the stator exhibits sinusoidal back-EMFs. Therefore, one can conclude that the proposed HEBCPA yields sinusoidal back-EMFs.…”

Section: No-load Characteristicmentioning

confidence: 99%

FEA-based investigation of the generating capability of a novel hybrid excited claw pole alternator with improved cost-effectiveness

Rebhi

Ibala

Masmoudi

2014

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose -The purpose of this paper is to investigate the generating capability of a novel hybrid excited brushless claw pole alternator (HEBCPA) with improved cost-effectiveness gained thanks to the substitution the rotor NdFeB-made permanent magnet (PM) with ferrite ones. Design/methodology/approach -The investigation of the magnetic features of the novel HEBCPA has been carried out using a 3D finite element analysis (FEA). Findings -It has been found that the machine generating capability is not affected by the substitution of the single rotor NdFeB-made PM by stator and rotor ferrite-made ones, which represents a crucial cost benefit. Research limitations/implications -An experimental validation of the features computed by FEA shall be considered as an outlook of the present work. Practical implications -The novel HEBCPA could be of great interest for automotive generating systems. Originality/value -The proposed HEBCPA with ferrite-made PMs is a novel concept.

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Section: No-load Characteristicmentioning

confidence: 99%

FEA-based investigation of the generating capability of a novel hybrid excited claw pole alternator with improved cost-effectiveness

Rebhi

Ibala

Masmoudi

2014

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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“…This has been carried out in order to discard the homopolar ftux. Considered as a leakage ftux in [6], [7], this laUer used to ftow: (i) axially in the stator yoke, (ii) radially then axially through the magnetic collector and the axial air gap, and (iii) axially in the claws, then radially in the radial air gap to c10se the loop in the stator teeth.…”

Section: A Main Flux Pathsmentioning

confidence: 99%

“…Accounting for the 3D-path ftuxes described in the previous section, and for the works of [bala and Masmoudi [6], one can establish the MEC model of the main ftux loops as illustrated in Fig. 6 where F pm R, F pm N, F pm s, and Fd e represent the MMFs generated by the PM in the rotor, the stator north PM, the stator south PM and the DC-current, respectively.…”

Section: A Main Flux Loopsmentioning

confidence: 99%

On the modeling of a doubly-excited brushless claw pole alternator: Application to a solar-wind-wave hybrid energy conversion system

Rebhi

Ibala

Masmoudi

2013

2013 Eighth International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER)

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Within an FP7 project proposal, the paper deals with the MEC modeling of a doubly-excited brushless claw pole alternator (DEBCPA). It consists in a claw pole concept with two excitation sources: (i) a ferrite PM in the rotor and (ii) a field winding associated to two ferrite PMs in the stator. The proposed MEC considers both linear and saturated magnetic circuit, with a focus on the modeling of the leakage f1uxes following a 3D finite element analysis (FEA)-based investigation of their paths. The derivation of the different reluctances as weIl as the MEC resolution procedure are detailed. The proposed MEC is applied for the prediction of the DEBCPA no-load characteristic, wh ich is validated by FEA.

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“…In order to increase reliability, brushless structure is desirable and the field windings are better being employed on the stator. The magnet can be employed either on the rotor [24][25][26] or on the stator [27][28][29]. Although employing magnet…”

Section: Introductionmentioning

confidence: 99%

A Novel DC-Coil-Free Hybrid-Excited Machine with Consequent-Pole PM Rotor

Wang

Niu

2018

Energies

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This paper proposes a new DC coil free hybrid excited machine concept, which has no external field windings. The technical novelty is the integration of field windings and armature windings. DC bias current is injected into the excitation and the field windings in the traditional hybrid excited machine are eliminated. Compared with traditional hybrid-excited machines with additional field windings, the proposed machine can realize a higher slot utilization ratio, hence achieve a higher torque density and a wider flux adjusting range. Another advantage of the proposed machine is that the voltage drop associated with flux regulation is small due to the small DC resistance, and the torque generating capability at the flux regulating region can be improved accordingly. The rotor is specifically designed with magnet-iron sequences and a consequent-pole, in which the permanent magnet and iron pole are alternatively employed. A bi-directional flux modulating effect can be achieved, which can contribute to the magnetic coupling in the air-gap. Analytical derivation is used to describe the operating principle, and the proposed machine was optimally designed using the Tabu search algorithm. A prototype was made, and its performances investigated through experimental tests.

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Accounting for the Armature Magnetic Reaction and Saturation Effects in the Reluctance Model of a New Concept of Claw-Pole Alternator

Cited by 41 publications

References 10 publications

FEA-based investigation of the generating capability of a novel hybrid excited claw pole alternator with improved cost-effectiveness

FEA-based investigation of the generating capability of a novel hybrid excited claw pole alternator with improved cost-effectiveness

On the modeling of a doubly-excited brushless claw pole alternator: Application to a solar-wind-wave hybrid energy conversion system

A Novel DC-Coil-Free Hybrid-Excited Machine with Consequent-Pole PM Rotor

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