Analysis and Study of a Bearingless AC Motor Type Divided Winding, Based on a Conventional Squirrel Cage Induction Motor

Author

Victor, Valci F. ; Quintaes, Filipe O. ; Lopes, José S B ; Junior, Luciano Dos S ; Lock, Alberto S. ; Salazar, Andrés O.

Author_Institution

Inst. Fed. do Tocantins-IFTO, Palmas, Brazil

Volume

48

Issue

11

fYear

2012

Firstpage

3571

Lastpage

3574

Abstract

This paper shows the analysis and study of a bearingless ac Motor type divided winding for a conventional squirrel cage induction motor, (IM). The conventional IM is used as a bearingless motor for artificial-lift oil proposes, allowing a reduction in maintenance and operation costs. The goal of this paper is improving electromagnetic forces performance, such as the Lorentz and Maxwell forces, allowing rotor positioning at the rotation axis. It was used a simulator based on the finite element method for acquiring load results for a 3,75 kW, 380 V, 4-poles, 60 Hz, 1.04 Nm, IM motor. Experimental results show that is possible to use a conventional IM as a bearingless motor, achieving a 80% efficiency. This paper presents simulated and experimental results that demonstrated the operation of the IM bearingless-type split coil built from a conventional induction motor.

Keywords

AC motors; finite element analysis; machine windings; rotors; squirrel cage motors; IM bearingless-type split coil; IM motor; Lorentz forces; Maxwell forces; artificial-lift oil proposes; bearingless AC motor type divided winding; bearingless motor; electromagnetic forces; finite element method; frequency 60 Hz; power 3.75 kW; rotor positioning; squirrel cage induction motor; voltage 380 V; Coils; Induction motors; Rotors; Stator windings; Windings; Electromagnetic (EM) force; induction motor (IM) bearing; position control; squirrel cage rotor;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2012.2201142

Filename

6332970