Design of a pseudo-MRAS sliding mode observer with double feedback for estimation of the rotor time constant of the induction motor

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

1 Citation (Scopus)

Abstract

The paper presents a method to estimate the inverse of the rotor time constant of the induction motor. The estimation is done using a sliding mode observer under the assumption that the stationary frame fluxes are known. These fluxes are first obtained using a voltage model observer; they are also used for field orientation. With measured voltages, currents, known fluxes and speed, the rotor time constant is estimated using a pseudo-MRAS sliding mode observer with dual feedback terms. The paper shows the design of this observer - this works well under ideal conditions. However, if the speed is inaccurate or if the magnetizing inductance saturates, the estimation accuracy suffers. The paper develops a model for the saturated induction motor and, using the equivalent controls that correspond to the sliding mode terms, attempts to estimate the saturation level - however, it is found that this is not possible.

Original languageEnglish (US)
Title of host publication2017 IEEE International Conference on Industrial Technology, ICIT 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages270-275
Number of pages6
ISBN (Electronic)9781509053209
DOIs
StatePublished - Apr 26 2017
Event2017 IEEE International Conference on Industrial Technology, ICIT 2017 - Toronto, Canada
Duration: Mar 23 2017Mar 25 2017

Publication series

NameProceedings of the IEEE International Conference on Industrial Technology

Other

Other2017 IEEE International Conference on Industrial Technology, ICIT 2017
CountryCanada
CityToronto
Period3/23/173/25/17

Fingerprint

Induction motors
Rotors
Fluxes
Feedback
Electric potential
Inductance

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Comanescu, M. (2017). Design of a pseudo-MRAS sliding mode observer with double feedback for estimation of the rotor time constant of the induction motor. In 2017 IEEE International Conference on Industrial Technology, ICIT 2017 (pp. 270-275). [7913095] (Proceedings of the IEEE International Conference on Industrial Technology). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICIT.2017.7913095
Comanescu, Mihai. / Design of a pseudo-MRAS sliding mode observer with double feedback for estimation of the rotor time constant of the induction motor. 2017 IEEE International Conference on Industrial Technology, ICIT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 270-275 (Proceedings of the IEEE International Conference on Industrial Technology).
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abstract = "The paper presents a method to estimate the inverse of the rotor time constant of the induction motor. The estimation is done using a sliding mode observer under the assumption that the stationary frame fluxes are known. These fluxes are first obtained using a voltage model observer; they are also used for field orientation. With measured voltages, currents, known fluxes and speed, the rotor time constant is estimated using a pseudo-MRAS sliding mode observer with dual feedback terms. The paper shows the design of this observer - this works well under ideal conditions. However, if the speed is inaccurate or if the magnetizing inductance saturates, the estimation accuracy suffers. The paper develops a model for the saturated induction motor and, using the equivalent controls that correspond to the sliding mode terms, attempts to estimate the saturation level - however, it is found that this is not possible.",
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Comanescu, M 2017, Design of a pseudo-MRAS sliding mode observer with double feedback for estimation of the rotor time constant of the induction motor. in 2017 IEEE International Conference on Industrial Technology, ICIT 2017., 7913095, Proceedings of the IEEE International Conference on Industrial Technology, Institute of Electrical and Electronics Engineers Inc., pp. 270-275, 2017 IEEE International Conference on Industrial Technology, ICIT 2017, Toronto, Canada, 3/23/17. https://doi.org/10.1109/ICIT.2017.7913095

Design of a pseudo-MRAS sliding mode observer with double feedback for estimation of the rotor time constant of the induction motor. / Comanescu, Mihai.

2017 IEEE International Conference on Industrial Technology, ICIT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 270-275 7913095 (Proceedings of the IEEE International Conference on Industrial Technology).

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

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AB - The paper presents a method to estimate the inverse of the rotor time constant of the induction motor. The estimation is done using a sliding mode observer under the assumption that the stationary frame fluxes are known. These fluxes are first obtained using a voltage model observer; they are also used for field orientation. With measured voltages, currents, known fluxes and speed, the rotor time constant is estimated using a pseudo-MRAS sliding mode observer with dual feedback terms. The paper shows the design of this observer - this works well under ideal conditions. However, if the speed is inaccurate or if the magnetizing inductance saturates, the estimation accuracy suffers. The paper develops a model for the saturated induction motor and, using the equivalent controls that correspond to the sliding mode terms, attempts to estimate the saturation level - however, it is found that this is not possible.

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Comanescu M. Design of a pseudo-MRAS sliding mode observer with double feedback for estimation of the rotor time constant of the induction motor. In 2017 IEEE International Conference on Industrial Technology, ICIT 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 270-275. 7913095. (Proceedings of the IEEE International Conference on Industrial Technology). https://doi.org/10.1109/ICIT.2017.7913095