Analysis of a position estimation strategy using a multiple-coupled circuits model of the induction motor

Author

Bossio, Guillermo ; De Angelo, Cristian ; García, Guillermo ; Solsona, Jorge ; Valla, María Inés

Author_Institution

Grupo de Electronica Aplicada, Univ. Nacional de Rio Cuarto, Argentina

Volume

1

fYear

2002

fDate

5-8 Nov. 2002

Firstpage

822

Abstract

A method for the analysis of a position estimation strategy for induction motors is presented. A model of multiple-coupled circuits, whose parameters are calculated from the winding geometry and distribution, is used for the analysis. The analyzed estimation strategy is based on the variation of the inductance between stator windings and rotor bars. The rotor position is obtained from the effect produced by inductance variation in the zero sequence voltage, exciting the motor with a predefined inverter-switching pattern. As an example, the analysis of the effect of skew on the estimation position signals is presented. Experimental results that validate the proposal are shown.

Keywords

inductance; induction motors; invertors; machine theory; parameter estimation; rotors; switching convertors; 5.5 kW; estimation strategy; inductance; inductance variation; induction motor; multiple-coupled circuits model; position estimation strategy; predefined inverter-switching pattern; rotor bars; rotor position; skew effect; stator windings; winding distribution; winding geometry; zero sequence voltage; Bars; Circuits; Geometry; Inductance; Induction motors; Rotors; Signal analysis; Solid modeling; Stator windings; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 02 [Industrial Electronics Society, IEEE 2002 28th Annual Conference of the]

Print_ISBN

0-7803-7474-6

Type

conf

DOI

10.1109/IECON.2002.1187614

Filename

1187614