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Shorted compensating windings or non-uniform conductive shield can be used in a selectively passive compulsator to compensate the field produced by the armature winding, thus to reduce the impedance and increase the amplitude of the output current. The compensating effect on the inductance of the armature winding changes while the rotor rotates, so it is possible for selective compensation to output...
This paper addresses effects of automatic excitation control in time-stepped finite element analysis of hydroelectric generators. A simple method to incorporate exciter and automatic voltage regulator models in a finite element software is presented and tested on a small hydropower generator connected to a three-phase power system equivalent. Three simulations are performed to demonstrate the impact...
This paper deals with an educational experiment of teaching basic knowledge on electromagnetic structure of synchronous electrical machines, standard operation and testing and parameters evaluation based on finite element models and analyses.
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