Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor Drives

This paper deals with fault-tolerant control (FTC) of an induction motor (IM) drive. An inter-turn short circuit (ITSC) of the stator windings was taken into consideration, which is one of the most common internal faults of induction machines. The sensitivity of the classic, well-known voltage and c...

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Main Authors: Mateusz Dybkowski, Szymon Antoni Bednarz
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/17/3232
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author Mateusz Dybkowski
Szymon Antoni Bednarz
author_facet Mateusz Dybkowski
Szymon Antoni Bednarz
author_sort Mateusz Dybkowski
collection DOAJ
description This paper deals with fault-tolerant control (FTC) of an induction motor (IM) drive. An inter-turn short circuit (ITSC) of the stator windings was taken into consideration, which is one of the most common internal faults of induction machines. The sensitivity of the classic, well-known voltage and current models to the stator winding faults was analyzed. It has been shown that these classical state variable estimators are sensitive to induction motor parameter changes during stator winding failure, which results in unstable operation of the direct field-oriented control (DFOC) drive. From a safety-critical applications point of view, it is vital to guarantee stable operation of the drive even during faults of the machine. Therefore, a new FTC system has been proposed, which consists of new modified rotor flux estimators, robust to stator winding faults. A detailed description of the proposed system is presented herein, as well as the results of simulation and experimental tests. Simulation analyses were performed using MATLAB/Simulink software. Experimental tests were carried out on the experimental test bench with a dSpace DS1103 card. The proposed solution could be applied as an alternative rotor flux estimation technique for the modern FTC drive.
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spelling doaj.art-dad2aa98d19447da9919ac5345eb90682022-12-22T04:01:43ZengMDPI AGEnergies1996-10732019-08-011217323210.3390/en12173232en12173232Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor DrivesMateusz Dybkowski0Szymon Antoni Bednarz1Department of Electrical Machines, Drives and Measurements, Wrocław University of Science and Technology, Wrocław 50-370, Wybrzeże Wyspiańskiego 27, PolandDepartment of Electrical Machines, Drives and Measurements, Wrocław University of Science and Technology, Wrocław 50-370, Wybrzeże Wyspiańskiego 27, PolandThis paper deals with fault-tolerant control (FTC) of an induction motor (IM) drive. An inter-turn short circuit (ITSC) of the stator windings was taken into consideration, which is one of the most common internal faults of induction machines. The sensitivity of the classic, well-known voltage and current models to the stator winding faults was analyzed. It has been shown that these classical state variable estimators are sensitive to induction motor parameter changes during stator winding failure, which results in unstable operation of the direct field-oriented control (DFOC) drive. From a safety-critical applications point of view, it is vital to guarantee stable operation of the drive even during faults of the machine. Therefore, a new FTC system has been proposed, which consists of new modified rotor flux estimators, robust to stator winding faults. A detailed description of the proposed system is presented herein, as well as the results of simulation and experimental tests. Simulation analyses were performed using MATLAB/Simulink software. Experimental tests were carried out on the experimental test bench with a dSpace DS1103 card. The proposed solution could be applied as an alternative rotor flux estimation technique for the modern FTC drive.https://www.mdpi.com/1996-1073/12/17/3232induction motorstator faultrotor flux estimatorcurrent modelvoltage modelDFOCFTC
spellingShingle Mateusz Dybkowski
Szymon Antoni Bednarz
Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor Drives
Energies
induction motor
stator fault
rotor flux estimator
current model
voltage model
DFOC
FTC
title Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor Drives
title_full Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor Drives
title_fullStr Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor Drives
title_full_unstemmed Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor Drives
title_short Modified Rotor Flux Estimators for Stator-Fault-Tolerant Vector Controlled Induction Motor Drives
title_sort modified rotor flux estimators for stator fault tolerant vector controlled induction motor drives
topic induction motor
stator fault
rotor flux estimator
current model
voltage model
DFOC
FTC
url https://www.mdpi.com/1996-1073/12/17/3232
work_keys_str_mv AT mateuszdybkowski modifiedrotorfluxestimatorsforstatorfaulttolerantvectorcontrolledinductionmotordrives
AT szymonantonibednarz modifiedrotorfluxestimatorsforstatorfaulttolerantvectorcontrolledinductionmotordrives