Observer-Based Estimation of Stator-Winding Faults in Delta-Connected Induction Motors: A Linear Matrix Inequality Approach

Kallesøe, Carsten Skovmose; Izadi‐Zamanabadi, Roozbeh; Vadstrup, P.; Rasmussen, Henrik

doi:10.1109/tia.2007.900494

Cited by 36 publications

(16 citation statements)

References 16 publications

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“…Therefore, the only way to achieve actual information about the fault factor value is its estimation. To achieve this goal, a method based on a stator current observer can be utilized [40,47]. This idea relies on calculation of the error between the estimated and measured stator current.…”

Section: Improvement Of the Drive Performance During Itsc By An Ftc Umentioning

confidence: 99%

“…Nonetheless, other techniques for ITSC effect compensation in IMs have been considered in control schemes with classical (PI or hysteresis) controllers as well. In Reference [39], an extended state observer [40] was used to eliminate a decoupling between flux and torque control paths, caused by an ITSC in the FOC scheme. This method was based on the assumption that accurate estimation of the state variables of a machine during ITSCs enables precise control of the IM and ensures stable operation of the drive.…”

Section: Introductionmentioning

confidence: 99%

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

Dybkowski

Bednarz

2019

Energies

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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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Section: Improvement Of the Drive Performance During Itsc By An Ftc Umentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Dybkowski

Bednarz

2019

Energies

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“…By substituting Equation (33) (29), equals so ν , is unknown, and it is necessary to calculate the short circuit current, as indicate by (29). Since the homopolar component of stator current i so = 0 in a Y-connected motor winding, from Equations (34), (31) and (27), we can obtain the following expression:…”

Section: Faulty Model In the Stator Fixed Dqo-framementioning

confidence: 99%

Observer-based fault diagnosis and field oriented fault tolerant control of induction motor with stator inter-turn fault

Toumi¹,

Boucherit²,

Tadjine³

2012

Archives of Electrical Engineering

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This paper describes a fault-tolerant controller (FTC) of induction motor (IM) with inter-turn short circuit in stator phase winding. The fault-tolerant controller is based on the indirect rotor field oriented control (IRFOC) and an observer to estimate the motor states, the amount of turns involved in short circuit and the current in the short circuit. The proposed fault controller switches between the control of the two components of measured stator current in the synchronously rotating reference frame and the control of the two components of estimated current in the case of faulty condition when the estimated current in the short circuit is not destructive of motor winding. This technique is used to eliminate the speed and the rotor flux harmonics and to assure the decoupling between the rotor flux and torque controls. The results of the simulation for controlling the speed and rotor flux of the IM demonstrate the applicability of the proposed FTC.

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“…In this method the neutral connection of the machine must be accessible. An observer has also been designed for delta connected machines [14]. In [15] the pendulous oscillation phenomenon and its behavior under faulty conditions has been studied.…”

Section: Introductionmentioning

confidence: 99%

Detection of stator winding faults in induction motors using three-phase current monitoring

Sharifi

Ebrahimi

2011

ISA Transactions

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Observer-Based Estimation of Stator-Winding Faults in Delta-Connected Induction Motors: A Linear Matrix Inequality Approach

Cited by 36 publications

References 16 publications

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

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

Observer-based fault diagnosis and field oriented fault tolerant control of induction motor with stator inter-turn fault

Detection of stator winding faults in induction motors using three-phase current monitoring

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