Title :
Performance of a three-phase AC generator with inset NdFeB permanent-magnet rotor
Author :
Chan, T.F. ; Yan, Lie-Tong ; Lai, L.L.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech., Kowloon, China
Abstract :
This paper presents the analysis and performance of a three-phase AC generator with an inset NdFeB permanent-magnet rotor. It is shown that the generator exhibits inverse saliency which results in an improvement in the voltage regulation. Conditions for achieving zero voltage regulation of the generator are deduced based on the two-axis theory. The finite element method is used for computing the direct- and quadrature-axis synchronous reactances, from which the generator performance may be determined. The theoretical analysis is verified by experiments performed on a prototype generator
Keywords :
AC generators; boron alloys; electric machine analysis computing; finite element analysis; iron alloys; machine theory; neodymium alloys; permanent magnet generators; rotors; stators; NdFeB; analysis; direct-axis synchronous reactance; finite element method; inset NdFeB permanent-magnet rotor; inverse saliency; performance; quadrature-axis synchronous reactance; three-phase AC generator; two-axis theory; voltage regulation; zero voltage regulation; Brushless motors; Finite element methods; Magnetic materials; Performance analysis; Permanent magnets; Prototypes; Rotors; Synchronous generators; Synchronous motors; Voltage control;
Conference_Titel :
Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7091-0
DOI :
10.1109/IEMDC.2001.939383
