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The novel three-phase rotary transformer is an attractive solution to replace the brushes and slip rings of doubly fed induction generators. The interaction of magnetic field produced by primary windings and rotating secondary ones makes it difficult to establish the dynamic mathematical model of the transformer. This paper presents the design procedure and finite element analyses of the novel three-phase...
This paper presents the design and analysis of a novel three-phase rotary transformer that can be used to replace the brushes and slip rings of doubly fed induction generators. The transformer core is designed for easy assembly and to ensure a relatively constant reluctance while the secondary of the transformer is rotating. Guidelines for the air-gap size, stator and rotor core shape, and excitation...
This paper presents the design and analysis of a novel three-phase rotary transformer that can be used to replace the brushes and slip rings of the doubly fed induction generators (DFIG). Design aspects of the transformer cores are investigated to ensure easy manufacturing and a relatively constant reluctance while the secondary of the transformer is rotating. Guidelines for the air-gap, stator and...
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