Title :
Unbalanced load sharing in a prototype multistage axial-flux permanent magnet synchronous machine
Author :
Braid, J. ; van Zyl, A. ; Landy, C.
Author_Institution :
Univ. of the Witwatersrand, Johannesburg, South Africa
Abstract :
Whilst loading a 5kW prototype multistage axial-flux permanent magnet synchronous machine, an unbalanced load sharing characteristic between stages was revealed. This results in the dominating stage undergoing a higher temperature rise. Unequal stator currents and power factors result in a lower overall machine efficiency. The cause of this problem is investigated and future design considerations are recommended.
Keywords :
load (electric); machine testing; magnetic flux; permanent magnet machines; power factor; stators; synchronous machines; 5 kW; design considerations; machine efficiency reduction; multistage axial-flux permanent magnet synchronous machine; temperature rise; unbalanced load sharing characteristic; unequal power factors; unequal stator currents; Permanent magnet machines; Permanent magnets; Prototypes; Rotors; Shafts; Stacking; Stator cores; Stator windings; Temperature; Topology;
Conference_Titel :
Electric Machines and Drives Conference, 2003. IEMDC'03. IEEE International
Print_ISBN :
0-7803-7817-2
DOI :
10.1109/IEMDC.2003.1210716
