Title :
Maximising the flux-weakening capability of permanent magnet brushless AC machines and drives
Author :
Zhu, Z.Q. ; Chen, Y.S. ; Howe, David
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ.
Abstract :
The behaviour of permanent magnet brushless AC machines, having alternative rotor topologies, viz. surface mounted, inset, interior radial and circumferential magnets, is investigated, when they are designed and operated under the `infinite´ flux-weakening capability condition. The corresponding torque/power-speed characteristics, the demagnetisation withstand capability, the variation of iron losses, and the fault management of the drive and/or machine etc. are analysed
Keywords :
AC motor drives; brushless machines; demagnetisation; losses; magnetic flux; permanent magnet motors; rotors; circumferential magnets; demagnetisation withstand capability; fault management; flux-weakening capability maximisation; inset magnets; interior radial magnets; iron losses variation; permanent magnet brushless AC drives; permanent magnet brushless AC machines; rotor topologies; surface mounted magnets; torque/power-speed characteristics; AC machines; Circuit topology; Demagnetization; Inverters; Iron; Magnetic analysis; Optimal control; Permanent magnets; Rotors; Torque;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.884547
