DC offset and parameter compensated flux estimator of sensorless vector controlled induction motor drive

M Hajian, G Arab, J Soltani, S Hoseinia

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

Abstract

A stator flux field oriented vector control design and implementation of sensorless three phase induction motor (IM) is presented in this paper. In proposed control scheme, the reference values of speed and stator flux are delivered to the nonlinear controller which consists of 5 separate PI controllers. A two level space vector modulation (SVM) inverter is employed to generate the required stator voltage. Moreover, using the fifth order model of three phase IM in the stationary reference frame, a nonlinear stator flux observer is developed which is capable of rotor and stator resistances and rotor speed simultaneously estimation. A useful method is also presented for DC offset compensation which is a major problem of AC drives especially at low speeds. Simulation and experimental results are presented to confirm the effectiveness of the proposed method.
Original languageEnglish
Title of host publicationInternational Conference on Electrical Machines and Systems, 2008. ICEMS 2008.
PublisherIEEE Explore
Pages1395-1400
Number of pages6
ISBN (Electronic)978-7-5062-9221-4
ISBN (Print)978-1-4244-3826-6
Publication statusPublished - 17 Oct 2008
EventIEEE ICEMS 2008 - Wuhan, China, United Kingdom
Duration: 17 Oct 200820 Oct 2008

Conference

ConferenceIEEE ICEMS 2008
CountryUnited Kingdom
CityWuhan, China
Period17/10/0820/10/08

Fingerprint

Induction motors
Stators
Fluxes
Rotors
Controllers
Vector spaces
Modulation
Electric potential

Cite this

Hajian, M., Arab, G., Soltani, J., & Hoseinia, S. (2008). DC offset and parameter compensated flux estimator of sensorless vector controlled induction motor drive. In International Conference on Electrical Machines and Systems, 2008. ICEMS 2008. (pp. 1395-1400). IEEE Explore.

DC offset and parameter compensated flux estimator of sensorless vector controlled induction motor drive. / Hajian, M; Arab, G; Soltani, J; Hoseinia, S.

International Conference on Electrical Machines and Systems, 2008. ICEMS 2008.. IEEE Explore, 2008. p. 1395-1400.

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

Hajian, M, Arab, G, Soltani, J & Hoseinia, S 2008, DC offset and parameter compensated flux estimator of sensorless vector controlled induction motor drive. in International Conference on Electrical Machines and Systems, 2008. ICEMS 2008.. IEEE Explore, pp. 1395-1400, IEEE ICEMS 2008, Wuhan, China, United Kingdom, 17/10/08.
Hajian M, Arab G, Soltani J, Hoseinia S. DC offset and parameter compensated flux estimator of sensorless vector controlled induction motor drive. In International Conference on Electrical Machines and Systems, 2008. ICEMS 2008.. IEEE Explore. 2008. p. 1395-1400
Hajian, M ; Arab, G ; Soltani, J ; Hoseinia, S. / DC offset and parameter compensated flux estimator of sensorless vector controlled induction motor drive. International Conference on Electrical Machines and Systems, 2008. ICEMS 2008.. IEEE Explore, 2008. pp. 1395-1400
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N2 - A stator flux field oriented vector control design and implementation of sensorless three phase induction motor (IM) is presented in this paper. In proposed control scheme, the reference values of speed and stator flux are delivered to the nonlinear controller which consists of 5 separate PI controllers. A two level space vector modulation (SVM) inverter is employed to generate the required stator voltage. Moreover, using the fifth order model of three phase IM in the stationary reference frame, a nonlinear stator flux observer is developed which is capable of rotor and stator resistances and rotor speed simultaneously estimation. A useful method is also presented for DC offset compensation which is a major problem of AC drives especially at low speeds. Simulation and experimental results are presented to confirm the effectiveness of the proposed method.

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