Title :
Design and analysis of a new permanent magnet brushless DC machine
Author :
Gan, Jinyun ; Chau, K.T. ; Wang, Yong ; Chan, C.C. ; Jiang, J.Z.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
fDate :
9/1/2000 12:00:00 AM
Abstract :
A new permanent magnet (PM) brushless DC machine with a unique feature of flux regulation is proposed in this paper. The originality is that the air-gap flux of the machine is generated by both the PM excitation and the specially controlled stator current under the same PM pole. The machine possesses advantageous characteristics of both the PM brushless DC machine and the DC series machine. The rotor configuration and principle of operation are so novel that the magnetic field distribution and performances of the machine are analyzed by use of a time-stepping finite element method. The theoretical calculation is also verified by experimental measurement
Keywords :
brushless DC motors; finite element analysis; permanent magnet motors; rotors; stators; air-gap flux; brushless DC motors; flux regulation; magnetic field distribution; permanent magnet brushless DC machine analysis; permanent magnet brushless DC machine design; rotor configuration; stator current; time-stepping finite element method; Air gaps; DC machines; Gallium nitride; Magnetic analysis; Magnetic field measurement; Permanent magnets; Reluctance machines; Rotors; Stators; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
