Title :
A new surface-inset, permanent-magnet, brushless DC motor drive for electric vehicles
Author :
Gan, Jinyun ; Chau, K.T. ; Chan, C.C. ; Jiang, J.Z.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
fDate :
9/1/2000 12:00:00 AM
Abstract :
A new five-phase, surface-inset, permanent-magnet (PM), brushless DC motor drive is proposed in this paper. The motor drive has advantages of both the PM brushless DC motor drive and the DC series motor drive. The originality is that the air-gap flux of the motor is generated by both the PM excitation and the specially controlled stator currents (two particular phases) under the same PM pole. The motor configuration and principle of operation are so unusual that the magnetic field distribution and steady-state performance are analyzed by the finite-element method. Experimental results for a prototype verify that the proposed motor drive is promising for modern electric vehicle applications
Keywords :
DC motor drives; brushless DC motors; electric vehicles; finite element analysis; machine windings; permanent magnet motors; PM brushless DC motor drive; PM excitation; air-gap flux; controlled stator currents; electric vehicles; electromagnetic field analysis; finite-element method; five-phase surface-inset type; magnetic field distribution; magnetic flux density; motor configuration; motor model; multiphase windings; principle of operation; rotational EMF; steady-state performance; Air gaps; Brushless DC motors; DC motors; Magnetic analysis; Magnetic fields; Motor drives; Performance analysis; Permanent magnet motors; Stators; Steady-state;
Journal_Title :
Magnetics, IEEE Transactions on
