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The paper presents an accurate analytical subdomain model for computation of the open-circuit magnetic field in surface-mounted permanent-magnet machines with any pole and slot combinations, including fractional slot machines, accounting for stator slotting effect. It is derived by solving the field governing equations in each simple and regular subdomain, i.e., magnet, air-gap and stator slots, and...
In this paper, a new permanent magnet (PM) flux-mnemonic brushless machine is proposed and implemented as an integrated-starter-generator (ISG) for hybrid electric vehicles (HEVs). The key is to integrate the concept of memory motor, namely the flux-mnemonics, with the doubly-salient PM (DSPM) machine. Hence, it offers the advantages of mechanical robustness, controllable air-gap flux, and efficient...
This work deals with the representation of three-phase and three-limb transformers in two dimensions using FEMM (finite element methods on magnetics). The transformer magnetization curve is obtained using the magnetization characteristic for the silicon steel used when assembling the transformer core, associated to the air gaps inherent to the assembling process. A method for the calculation of the...
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