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The main purposes of this paper consist of two parts: Firstly, a simplified equivalent magnetic circuit model of the flux-switching permanent magnet (FSPM) machines is built, which enables demonstrating the relationships between static electromagnetic performances and design parameters, i.e., the parameter sensitivities on performance are to be evaluated. Secondly, a robust design approach for the...
Without power electronics and mechanical gearbox, the permanent magnet induction generator (PMIG), a new grid-connected direct-driven wind generator concept, is considered to be a highly efficient, low maintenance solution for high capacity offshore wind power generation system. In this paper, the characteristics and optimal design method of this generator for wind power application are investigated...
This paper presents a new topology of the coaxial magnetic gear (CMG) in which the permanent magnets (PMs) in the outer rotor are magnetized in tangential direction, hence offering the flux-focusing effect. By using the 2D finite element method, the influence of the main design parameters on the maximum pull-out torque of the proposed magnetic gear is investigated. Also, a quantitative comparison...
In this paper, a nonlinear magnetic circuit network model is proposed for a three-phase 12-stator-slot/10-rotor-pole hybrid-excited flux-switching machine for electrical vehicles, which can predict the static electromagnetic characteristics, including the open-circuit air-gap field distributions, phase PM flux-linkage, phase back-electromotive force (back-EMF) waveform and winding inductances. To...
In this paper, a nonlinear magnetic network model considering saturation is proposed for a three-phase 12-stator-slot/10-rotor-pole flux-switching permanent-magnet motor, which can predict the open-circuit air-gap field distribution, phase PM flux-linkage, phase back-electromotive force (back-EMF) waveform and winding inductances with considerable accuracies. The predicted results are confirmed by...
This paper presents the optimal design of an 18-slot 8-pole double-stator permanent magnet brushless (DS-PMBL) machine. The key is to optimize the split ratio, namely the ratio of the inner-stator outside diameter to the outer-stator outside diameter, to achieve the maximum torque density under the same copper loss. Both the finite element analysis and experimental results are given to verify the...
In this paper, a nonlinear magnetic circuit network model for the analysis of a three-phase 12-stator-slot/10-rotor-pole flux-switching permanent-magnet (FSPM) motor is proposed considering localized saturation effect, which enables the predictions of open-circuit air-gap field distributions, phase flux-linkage, phase back-electro-motive-force (back-EMF) and winding inductances waveforms. Further,...
Doubly salient permanent-magnet (DSPM) motors offer the advantages of high power density and high efficiency. In this paper, it is examined that the DSPM motor is a new class of fault-tolerant machines, a potential candidate for many applications where reliability and power density are of importance. Fault analysis is performed in a DSPM motor drive, including internal and external faults. Due to...
Flux-switching permanent magnet (FSPM) motor is a new brushless machine with magnets in the stator, offering the advantages of robust rotor structure, high power density and high efficiency. In this paper, a transient co-simulation method of coupled magnetic and electric circuit solvers is adopted for performance analysis of a FSPM motor drive. The magnetic circuit and the electric circuit are coupled...
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