Title :
A brushless doubly fed induction machine with flat plane rotary transformers
Author :
Ruviaro, M. ; Rüncos, F.
Author_Institution :
WEG Equipamentos Eletricos S.A. - Energia, Jaraguá do Sul, Brazil
Abstract :
This paper presents and analyses a 350kW brushless doubly fed three-phase induction machine with its wound rotor circuit connected to flat plane rotary transformers. It presents the advantages of substituting brushes and slip-rings by rotary transformers. In addition, it shows rotary transformer design and presents the doubly fed induction machine operation. The steady state model considers electrical circuit techniques to provide information about current, power factor and efficiency on load. Equivalent circuit parameters used on simulations were obtained through analytical calculation of a prototype.
Keywords :
asynchronous machines; brushless machines; equivalent circuits; transformers; brushless doubly fed induction machine; electrical circuit techniques; equivalent circuit parameters; flat plane rotary transformers; power 350 kW; three-phase induction machine; wound rotor circuit; Circuit faults; Induction machines; Rotors; Stator windings; Torque; Windings; AC machines; brushless machines; circuit analysis; circuit simulation; equivalent circuits; induction motors; prototypes; rotary transformer; rotating machines; transformer cores;
Conference_Titel :
Electrical Machines (ICEM), 2012 XXth International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4673-0143-5
Electronic_ISBN :
978-1-4673-0141-1
DOI :
10.1109/ICElMach.2012.6349832
