A new structure of a switching flux synchronous polyphased machine with hybrid excitation

Hoang, Emmanuel; Lécrivain, M.; Gabsi, Mohamed

doi:10.1109/epe.2007.4417204

Cited by 290 publications

(119 citation statements)

References 6 publications

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“…Although flux-weakening can be realized by shifting the phase angle of armature current regarding the EMF, i.e., the vector control or the field-orientation control, is more difficult to realize and less effective compared to wound-field machines. Therefore, hybrid-excited flux-switching (HEFS) machines are proposed and considerably attractive [16,17]. Based on the HEFS machines proposed in [17] and shown in Figure 1a, it is easy to deduce two other topologies as shown in Figure 1b,c, respectively, in which the middle and bottom of magnets are kept, and the saved room is left for the field windings.…”

Section: Introductionmentioning

confidence: 99%

Steady-State Characteristics Analysis of Hybrid-Excited Flux-Switching Machines with Identical Iron Laminations

2015

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Abstract:Since the air-gap field of flux-switching permanent magnet (FSPM) machines is difficult to regulate as it is produced by the stator-magnets alone, a type of hybrid-excited flux-switching (HEFS) machine is obtained by reducing the magnet length of an original FSPM machine and introducing a set of field windings into the saved space. In this paper, the steady-state characteristics, especially for the loaded performances of four prototyped HEFS machines, namely, PM-top, PM-middle-1, PM-middle-2, and PM-bottom, are comprehensively compared and evaluated based on both 2D and 3D finite element analysis. Also, the influences of PM materials including ferrite and NdFeB, respectively, on the characteristics of HEFS machines are covered. Particularly, the impacts of magnet movement in the corresponding slot on flux-regulating performances are studied in depth. The best overall performances employing NdFeB can be obtained when magnets are located near the air-gap. The FEA predictions are validated by experimental measurements on corresponding machine prototypes.

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Section: Introductionmentioning

confidence: 99%

Steady-State Characteristics Analysis of Hybrid-Excited Flux-Switching Machines with Identical Iron Laminations

2015

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“…2(a), while a three-phase machine was presented in 1997 where ferrite was embraced to observe the flux centering impact appeared in Fig. 2(b) [10,11]. More recently, there have been revived research interests in PMFSM, most likely because of number of saw advantages.…”

Section: Introductionmentioning

confidence: 99%

Parametric Optimization and Performance Analysis of Outer Rotor Permanent Magnet Flux Switching Machine for Downhole Application

Kumar¹,

Sulaiman²,

Jenal³

et al. 2017

Journal of Magnetics

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To empower safe, economical and eco-friendly sustainable solution for enhancing oil and gas productivity from deep water reservoirs, new downhole technologies are recommended. Since electric machine plays leading role in the downhole application, it is a squeezing requirement for researchers to design and develop advanced electric machine. The Recent improvement in technology and uses of high-temperature magnets, permanent magnet flux switching machine (PMFSM) has become one of the appropriate contenders for offshore drilling but fewer designed for downhole due to ambient temperature. Therefore this comprehensive study deals with the design optimization and performance analysis of outer rotor PMFSM for the downhole application. Preliminary, the basic design parameters needed for machine design are calculated mathematically. Then the design refinement technique is implemented through deterministic method. Finally, initial and optimized performance of the machine is compared and as a result the output torque is increase from 16.39 Nm to 33.57 Nm while diminishing the cogging torque and PM weight up to 1.77 Nm and 0.79 kg, respectively. Therefore, it is concluded that purposed optimized design is suitable for the downhole application.

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“…However, the generated flux of the machine is uncontrollable due to constant PM used as a main flux source. Therefore, HEFSM that consist of two flux sources of PM and DC FEC has been introduced in 2007 to provide variable flux control capabilities [11]. Thus, with the improvement have been made, the machine has additional advantage of suitability for low and high speed applications.…”

Section: Introductionmentioning

confidence: 99%

Design investigation of three phase HEFSM with outer-rotor configuration

Ahmad

Sulaiman

Jenal

et al. 2013

2013 IEEE Conference on Clean Energy and Technology (CEAT)

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-Flux switching machines (FSMs) with the advantages of single piece of rotor and robust rotor structure become a popular research topic in recent years that suitable for various speed conditions. This machine combined the advantages of Switched Reluctance Machines (SRMs) and Permanent Magnet Synchronous Machines (PMSMs). Previously, most of developed FSMs are mainly focused on inner-rotor configuration, and hard to find research on outer-rotor FSM configuration. Therefore, this paper presents design investigation of three phase Hybrid Excitation Flux Switching Machine (HEFSM) with outer-rotor configuration. Primarily, design processes of the outer-rotor HEFSM especially for drawing parts, materials and conditions used, and properties setting are described in detail. Next, coil arrangement tests are also evaluated to confirm the principle operation of the machine and the phase sequence of each armature coil. Finally, DC field excitation flux capabilities at various current density condition, flux path and flux distribution, back-emf voltage and initial torque are also investigated.

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A new structure of a switching flux synchronous polyphased machine with hybrid excitation

Cited by 290 publications

References 6 publications

Steady-State Characteristics Analysis of Hybrid-Excited Flux-Switching Machines with Identical Iron Laminations

Steady-State Characteristics Analysis of Hybrid-Excited Flux-Switching Machines with Identical Iron Laminations

Parametric Optimization and Performance Analysis of Outer Rotor Permanent Magnet Flux Switching Machine for Downhole Application

Design investigation of three phase HEFSM with outer-rotor configuration

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