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Through the finite element method, nonlinear load characteristics for a certain 1000 MW hydro generator within considering saturation are studied based on theoretical analysis. The characteristic curves are relationship between resultant current and air electromotive force. To obtain a series of saturated nonlinear load characteristic curves under varied conditions, the different operation conditions,...
This paper deals with the skew effects on starting characteristics of a line-start permanent-magnet motor (LSPM). Considering structural constraints of a rotor of an LSPM, we propose a stator-skewed core. With variation of the skew angle of stator core, the back EMF and the start-up characteristics are analyzed, and the optimal angle to maximize the start-up performance is searched. For analysis considering...
In this paper a study about the different effects of static and dynamic rotor eccentricities on the external electric variables of a salient-pole synchronous generator is presented. Air-gap irregularities and related monitoring techniques have been studied in the past mainly about large hydro-generators (with practical applications), but similar problems have been recognized for on-board ship synchronous...
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