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

fYear

2012

fDate

2-5 Sept. 2012

Firstpage

23

Lastpage

29

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICElMach.2012.6349832

Filename

6349832