Title :
Reduction effect of excitation losses in a permanent-magnet-assisted salient-pole synchronous machine with narrow pole bodies
Author :
Shima, Keisuke ; Sato, Mitsuhisa ; Fukami, Tadashi
Author_Institution :
Dept. of Electr. & Electron. Eng., Kanazawa Inst. of Technol., Kanazawa, Japan
Abstract :
A permanent-magnet-assisted salient-pole synchronous machine (PMa-SM) that has narrower pole bodies than the conventional synchronous machine (SM) of the same size is built. The effect of reducing the excitation losses by the permanent magnets is verified by the measurements and the finite element analysis. As a result, the excitation loss in the PMa-SM is 26 % smaller than that in the SM under the rated load condition with unity power factor. Conversely, it is not smaller under the rated load with 0.8 lagging power factor.
Keywords :
finite element analysis; permanent magnet machines; synchronous machines; PMa-SM; excitation loss reduction effect; finite element analysis; narrow-pole bodies; permanent magnet-assisted salient-pole synchronous machine; unity power factor; Current measurement; Loss measurement; Magnetic field measurement; Magnetic flux; Reactive power; Saturation magnetization; Windings;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2013 International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4799-1446-3
DOI :
10.1109/ICEMS.2013.6754530