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대한전기학회 전기학회논문지 B 전기학회논문지 제49B권 제2호
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    초록·키워드

    This paper presents a novel method for the transient analysis of eddy currents in the dampers of a super-conducting synchronous generator(SCG). The method proposes a 2-D corrected model which takes into account the influence of leakage fluxes of the field winding ends by increasing the effective air gap in order to consider the high precision of the analysis for the conventional 2-D model. The electromagnetic fields for the corrected model are analyzed by the time-stepping finite element method, thus the eddy currents in the dampers and electro-motive forces(EMF) in the stator windings are calculated. As the results, it is proved the presented method is comparatively accurate by comparing the measured phase EMF values and the simulation ones, where about 6.4% error at the maximum value of EMF is occurred between them.

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      UCI(KEPA) : I410-ECN-0101-2010-560-001997824