Sensorless torque-controlled induction motor drive for EV applications

Ehsan Dehghan-Azad, Shady Gadoue, David Atkinson, Howard Slater, Peter Barrass

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

This paper presents a robust sensorless control technique for an Induction Motor (IM) used for Electric Vehicle (EV) applications. In order to estimate the rotor speed, a new back-electromotive-force (back-EMF) based-model reference adaptive system (MRAS) estimator is proposed. The new back-EMF MRAS is independent from the stator resistance and stator inductance parameters. Hence the proposed scheme is immune to these parameters variations. It also is robust against inverter nonlinearity and shows consistency at starting from standstill. The proposed scheme has been experimentally implemented and tested on a 19-kW induction motor (IM), of a type used for the automotive industry for EV applications. A comparison is carried out between the performance of the conventional and the proposed back-EMF MRAS. Tests include sensitivity to stator resistance variation and capability to start from standstill. Experimental results show the improved performance achieved using the proposed sensorless control scheme and its suitability for EV applications.

Original languageEnglish
Title of host publication2017 IEEE Transportation and Electrification Conference and Expo, ITEC 2017
PublisherIEEE
Pages263-268
Number of pages6
ISBN (Electronic)9781509039043
ISBN (Print)978-1-5090-3954-8
DOIs
Publication statusPublished - 26 Jul 2017
Event2017 IEEE Transportation and Electrification Conference and Expo, ITEC 2017 - Chicago, United States
Duration: 22 Jun 201724 Jun 2017

Publication series

Name2017 IEEE Transportation and Electrification Conference and Expo, ITEC 2017

Conference

Conference2017 IEEE Transportation and Electrification Conference and Expo, ITEC 2017
CountryUnited States
CityChicago
Period22/06/1724/06/17

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