Modelling of the closed rotor slot effects in the induction motor equivalent circuit

Author

Boglietti, Aldo ; Cavagnino, Andrea ; Lazzari, Mario

Author_Institution

Dipt. di Ing. Elettr., Politec. di Torino, Turin

fYear

2008

fDate

6-9 Sept. 2008

Firstpage

1

Lastpage

4

Abstract

In induction motors with closed rotor slots the enclosure upper part of the rotor slot saturates during the machine operations, involving an additional non-linearity in the machines behavior. A simple locked rotor test gives prominence to this phenomenon. In fact, in this test the supply voltage versus adsorbed current characteristics are not linear. In the paper a single-phase induction motor equivalent circuit suitable to take into account the effects due to the rotor wedge saturation is proposed. Complete theoretical details about the new equivalent circuit are reported together with experimental validation.

Keywords

equivalent circuits; induction motors; machine theory; rotors; closed rotor slots; induction motor equivalent circuit; locked rotor test; rotor wedge saturation; single-phase induction motor; Aluminum; Bridge circuits; Circuit testing; Equivalent circuits; Induction motors; Magnetic flux; Parameter estimation; Rotors; Stators; Voltage; closed rotor slot; equivalent circuit; induction motors; saturation effects and parameter identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines, 2008. ICEM 2008. 18th International Conference on

Conference_Location

Vilamoura

Print_ISBN

978-1-4244-1735-3

Electronic_ISBN

978-1-4244-1736-0

Type

conf

DOI

10.1109/ICELMACH.2008.4799834

Filename

4799834