Wound-Rotor Induction Generators: Steady State

Authored by: Ion Boldea

Variable Speed Generators

Print publication date:  October  2015
Online publication date:  October  2015

Print ISBN: 9781498723572
eBook ISBN: 9781498723589
Adobe ISBN:


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Wound-rotor induction generators (WRIGs) are provided with three-phase windings on the rotor and on the stator. They may be supplied with energy at both rotor and stator terminals. For this reason, such generators are called “doubly fed induction generators” (DFIGs), or double-output induction generators (DOIGs). WRIGs can operate in both monitoring and generating modes, provided the power electronics converter that supplies the rotor circuits, in general, via slip-rings and brushes is capable of handling power in both directions.

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