A new method for modeling and vector control of unbalanced induction motors

Jannati, Mohammad; Idris, Nik Rumzi Nik; Salam, Zainal

doi:10.1109/ecce.2012.6342483

Cited by 41 publications

(89 citation statements)

References 18 publications

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“…As shown in [3], a faulty IM equation structure is, in general, the same as a balanced IM equation structure. The differences between the models of a balanced and a faulty IM are summarized in Table 1.…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…A faulty IM stator equation can be transformed into an unbalanced d-q stator equation using the normalized transformation matrix as derived in [3], which is given by (1):…”

Section: Balanced Induction Motor Faulty Induction Motormentioning

confidence: 99%

“…the steady-state equivalent circuit of a single-phase IM to Figure 1(3)). Based on (4), the transformation matrices for the transformation of the variables from an unbalanced set to a balanced set are obtained as follows [3].…”

Section: Equations Of the Proposed Vector Control For Faulty Imsmentioning

confidence: 99%

“…Applying a conventional control strategy such as FOC to a faulty three-phase IM (threephase machine under open-phase fault) will result insignificant oscillations in the speed and torque output [1][2][3][4]. It was shown in [1-4] that using transformation matrices, the FOC equation structure for a faulty three-phase IM can be transformed into a structure that is similar to that for a balanced IM.…”

Section: B Introductionmentioning

confidence: 99%

“…It was shown in [1][2][3][4] that using transformation matrices, the FOC equation structure for a faulty three-phase IM can be transformed into a structure that is similar to that for a balanced IM. However, the backward terms of the stator voltage equations were neglected in the process of calculating the FOC equations [2,3]. The proposed method in [4] for vector control of faulty IMs is also extremely dependent on the regulation of the current proportional-integral controller.…”

Section: B Introductionmentioning

confidence: 99%

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A Novel Method for Vector Control of Three-Phase Induction Motor under Open-Phase Fault

Jannati

Asgari

Idris

et al. 2015

J. Eng. Technol. Sci.

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Abstract. The majority of electrical machines such as induction motors can be modeled by an equivalent two-phase machine model (d-q model). A three-phase induction motor with one of the stator phases opened (faulty three-phase induction motor) can be also modeled by an equivalent two-phase machine. If a conventional vector control method for balanced three-phase induction motors is used for this faulty machine, significant oscillations in speed and torque will result. In this paper, a novel technique for vector control of faulty three-phase induction motors based on rotor-field oriented control (RFOC) is presented. The performance of the proposed method was evaluated using MATLAB software. The results show that it achieves significant improvements in the oscillation reduction of the speed and torque responses. Keywords: field-oriented control; open-phase fault; speed and torque oscillations; three-phase induction motors; vector control. 1 B IntroductionNowadays, field-oriented control (FOC) of induction motors (IMs) is broadly adopted to obtain high dynamic performance in drive systems. Applying a conventional control strategy such as FOC to a faulty three-phase IM (threephase machine under open-phase fault) will result insignificant oscillations in the speed and torque output [1][2][3][4]. It was shown in [1-4] that using transformation matrices, the FOC equation structure for a faulty three-phase IM can be transformed into a structure that is similar to that for a balanced IM. However, the backward terms of the stator voltage equations were neglected in the process of calculating the FOC equations [2,3]. The proposed method in [4] for vector control of faulty IMs is also extremely dependent on the regulation of the current proportional-integral controller. Reference [5] reviews and compares fault tolerant AC drives on the basis of features, costs and limitations.It is also interesting to note that the three-phase IM model with one phase cutoff is, in principle, similar to the model of a single-phase IM with two windings.

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Section: Mathematical Modelingmentioning

confidence: 99%

“…A faulty IM stator equation can be transformed into an unbalanced d-q stator equation using the normalized transformation matrix as derived in [3], which is given by (1):…”

Section: Balanced Induction Motor Faulty Induction Motormentioning

confidence: 99%

Section: Equations Of the Proposed Vector Control For Faulty Imsmentioning

confidence: 99%

Section: B Introductionmentioning

confidence: 99%

Section: B Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Novel Method for Vector Control of Three-Phase Induction Motor under Open-Phase Fault

Jannati

Asgari

Idris

et al. 2015

J. Eng. Technol. Sci.

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Indirect vector controlled of an induction motor using H ^∞ current controller for IGBT open circuit fault compensation

Chérif

Djerioui

Zeghlache

et al. 2020

Int Trans Electr Energ Syst

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The purpose of this paper is to design the robust fault-tolerant control FTC open-circuit fault IGBT's, first of all. The modeling and control of the induction motor in the healthy inverter and in the faulty inverter (open-circuit fault at the IGBT switch) are proposed. Furthermore, the technique for detection and location the open-circuit fault an IGBT based on the Park vector combined with the polar coordinate. In order to ensure the service continuity of the system, two methods of tolerance are developed: the first method, the indirect vector control with H ∞ controller of the induction motor fed by a three-phase inverter based on the fault compensation. The second method, the indirect vector control of the induction motor fed by a three-phase inverter with the redundant leg. Finally, comparative study between the two techniques of tolerance is carried out. The performance of each technique is confirmed by experimental results.

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An optimized vector control strategy for induction machines duringopen‐phasefailure condition usingparticle swarm optimizationalgorithm

Nikpayam

Ghanbari

Esmaeli

et al. 2020

Int Trans Electr Energ Syst

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Background: 3ϕ Induction Machine (IM) drives are broadly used in different industrial applications. During failure conditions, 3ϕ IM drive systems cannot continue its optimal performance. Aims: The present study presents a method for indirect rotor field-orientated control (IRFOC) of star-connected 3ϕ IM drives during open-phase failure (OPF) condition. In addition, in this study the particle swarm optimization algorithm was used to determine the coefficients of proportional-integral (PI) controllers in the OPF mode. Materials & Methods: In the proposed method, two unbalanced currents and voltage rotational matrices are utilized to change the asymmetrical structure of the faulty 3ϕ IM equations to the equations with a symmetrical structure. Using these matrices, the speed control of the faulty 3ϕ IM can be realized with minor changes in the conventional IRFOC structure including control parameters, transformation matrices, and coefficients of PI controllers. Results: Experimental results were presented during various operating conditions on a 1 HP star-connected 3ϕ IM drive system. Discussion: The experimental tests in different operating conditions showed good performances of the proposed control system during both the steady-state and the transient periods. Conclusion: The proposed control method exhibited a significant improvement in reducing the speed, torque, and flux oscillations, compared to the

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A new method for modeling and vector control of unbalanced induction motors

Cited by 41 publications

References 18 publications

A Novel Method for Vector Control of Three-Phase Induction Motor under Open-Phase Fault

A Novel Method for Vector Control of Three-Phase Induction Motor under Open-Phase Fault

Indirect vector controlled of an induction motor using H ^∞ current controller for IGBT open circuit fault compensation

An optimized vector control strategy for induction machines duringopen‐phasefailure condition usingparticle swarm optimizationalgorithm

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A new method for modeling and vector control of unbalanced induction motors

Cited by 41 publications

References 18 publications

A Novel Method for Vector Control of Three-Phase Induction Motor under Open-Phase Fault

A Novel Method for Vector Control of Three-Phase Induction Motor under Open-Phase Fault

Indirect vector controlled of an induction motor using H ∞ current controller for IGBT open circuit fault compensation

An optimized vector control strategy for induction machines duringopen‐phasefailure condition usingparticle swarm optimizationalgorithm

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Product

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Indirect vector controlled of an induction motor using H ^∞ current controller for IGBT open circuit fault compensation