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In this paper, a novel flux-switching permanent-magnet linear generator (FSPMLG) is proposed for wave-energy extraction. The 2-D finite-element method (FEM), combined with the equivalent circuit, is implemented to investigate the electromagnetic characteristics of the FSPMLG. The optimal structure of the linear generator has advantages of better voltage waveform and minimal cogging effect. The numerical...
This paper describes two alternative designs of a direct-drive permanent-magnet generator for use in a novel sea-wave electrical generator. The basic system is briefly described and the target specification is given from the wave device. The design for a fractional-slot high-pole number brushless permanent-magnet generator and a torus generator are sized and developed using the design packages SPEED...
In this paper the optimization of a Tubular Permanent Magnet-Linear Generator (TPM-LiG) for energy generation is presented. The application is related to the sea wave energy generation for small sensorized buoy. The optimization process is developed by means of an hybrid evolutionary algorithm widely presented in the paper. The advantage of this algorithm is in the wide exploration of the variables...
This paper presents the design procedure and modeling methodology for a four sided floating type of linear permanent magnet generator used in sea wave energy extraction applications. The hydraulic system of wave generation with buoy has been developed. Appropriate coupled magnetic-electric-mechanical models for the analysis of the linear permanent magnet (LPM) generator is researched with finite element...
In this paper, a novel flux-switching permanent magnet (FSPM) linear generator is proposed for wave energy extraction. The linear generator is analyzed by using 2D finite element method (FEM) to investigate the electromagnetic characteristics. The result shows that the proposed generator has advantage of the voltage waveform by reducing the cogging effect. The computational results are verified by...
This paper analyses the stator teeth geometry effects on cogging force of permanent magnet linear generators. The method making translator adjacent sides' permanent magnet allotropic is proposed to minimize the cogging force of four sided permanent magnet linear generators. The dynamic modeling of the generator's performance is based on finite element method. The generator is coupled to a particular...
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