Sensorless direct vector control technique for induction motor drives under single-phase open-circuit fault

To improve the performance of sensorless wye-connected 3-phase induction motor (3-IM) drives under single-phase open-circuit fault (SOF), a direct vector control (DVC) technique is proposed in this paper. In the presented strategy, an asymmetrical current transformation matrix is introduced and used...

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Bibliographic Details
Published inElectrical engineering Vol. 105; no. 4; pp. 2327 - 2345
Main Authors Heidaripour Shahrbjari, Behnam, Ghanbari, Mahmood, Ebrahimi, Reza, Jannati, Mohammad
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2023
Springer Nature B.V
Subjects
Circuits
Economics and Management
Electrical Engineering
Electrical Machines and Networks
Energy Policy
Engineering
Extended Kalman filter
Induction motors
Original Paper
Power Electronics
EKF
Direct vector control
SOF
Wye-connected 3-phase induction motor
Estimation of the speed and rotor flux
Sensorless drive system
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Summary:To improve the performance of sensorless wye-connected 3-phase induction motor (3-IM) drives under single-phase open-circuit fault (SOF), a direct vector control (DVC) technique is proposed in this paper. In the presented strategy, an asymmetrical current transformation matrix is introduced and used. In the proposed control scheme also, an extended Kalman filter (EKF) is utilized for the estimation of the speed and rotor flux. The proposed control system is able to control sensorless 3-IMs during normal and SOF modes with slight adjustments. The effectiveness of the suggested method is validated by the experimental results. The obtained results demonstrate that under SOF, the proposed sensorless DVC approach has better results than the conventional sensorless DVC strategies in terms of speed, torque, and flux ripples.
ISSN:0948-7921
1432-0487
DOI:10.1007/s00202-023-01781-y