Title :
Single phase permanent-magnet generator with low armature reaction for induction heating gen sets
Author :
Caricchi, F. ; Maradei, F. ; De Donato, G. ; Capponi, F. Giulii
Author_Institution :
Dept. of Electr. Eng., Sapienza - Univ. of Rome, Rome
Abstract :
The paper presents a single phase, slotless axial flux permanent magnet synchronous machine for induction heating gen sets. A full scale prototype of the machine (110 kVA, 400 Hz, 690 A) has been designed and subsequently analyzed through FEM analysis (FEA). Induced current distributions in the permanent magnets (PMs) and in the rotors are also calculated through FEA and it is seen that the resulting losses are kept at bay due to the large air gap. This key feature allows the machine to achieve a high rated efficiency (94%). The prototype has also been built and experimental tests confirm the results obtained by FEA.
Keywords :
finite element analysis; induction heating; permanent magnet generators; rotors; synchronous generators; FEA; FEM analysis; apparent power 110 kVA; current 690 A; frequency 400 Hz; induced current distributions; induction heating gen sets; low armature reaction; rotors; single phase permanent-magnet generator; slotless axial flux permanent magnet synchronous machine; Armature; Frequency; Heat engines; Induction generators; Iron; Magnetic analysis; Permanent magnet motors; Prototypes; Rotors; Topology;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4799853
