Title :
Eddy current loss analysis of stator core through bolt of hydrogenerator
Author :
Fujita, Masayuki ; Ueda, Toshitsugu ; Tokumasu, Tadashi ; Ishizuka, Hirokazu ; Okubo, Masaaki ; Mukai, Koji
Author_Institution :
Toshiba Corp., Yokohama, Japan
Abstract :
In some of rotating machines such as hydrogenerators, through bolts may be used to fix the laminated iron core. In such bolts which are incorporated in the alternating field, eddy currents may be induced and this can lead to loss increase and overheating. In this paper, eddy current analyses of stator core through bolt are performed and some investigation on 3D effect and magnetic saturation are presented.
Keywords :
eddy current losses; fasteners; hydroelectric generators; magnetic cores; stators; 3D effect; alternating field; eddy current loss analysis; hydrogenerator; laminated iron core; magnetic saturation; overheating; rotating machine; stator core through bolt; Analytical models; Eddy currents; Fasteners; Magnetic cores; Magnetic flux; Saturation magnetization; Stator cores; Eddy current analysis; Hydrogenerator; Stator core; Through bolt;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
