Sensorless sliding-mode control of induction motors using operating condition dependent models

Author

Proca, Amuliu Bogdan ; Keyhani, Ali ; Miller, John M.

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

18

Issue

2

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

205

Lastpage

212

Abstract

A sensorless torque control system for induction motors is developed. The system allows for fast and precise torque tracking over a wide range of speed. The paper also presents the identification and parameter estimation of an induction motor model with parameters varying as functions of the operating conditions encountered in hybrid electric vehicles applications. An adaptive sliding mode speed-flux observer is developed and a cascade of discrete time sliding mode controllers is used for flux and current control. Simulation and experimental results prove the validity of the approach.

Keywords

discrete time systems; electric current control; hybrid electric vehicles; induction motors; machine control; machine theory; magnetic flux; magnetic variables control; parameter estimation; torque control; variable structure systems; adaptive sliding mode speed-flux observer; current control; discrete time sliding mode controllers; flux control; hybrid electric vehicles; identification; induction motor model; induction motors; operating condition dependent models; operating conditions; parameter estimation; sensorless sliding-mode control; torque tracking; Frequency; Hybrid electric vehicles; Induction motors; Observers; Parameter estimation; Rotors; Sensorless control; Sliding mode control; Stators; Synchronous motors;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/TEC.2003.811717

Filename

1201090