Speed Sensorless Vector Control of Unbalanced Three-Phase Induction Motor with Adaptive Sliding Mode Control

Jannati, Mohammad; Monadi, Ali; Idris, Nik Rumzi Nik; Aziz, Mohd Junaidi Abdul

doi:10.11591/ijpeds.v4i3.6212

Cited by 17 publications

(29 citation statements)

References 27 publications

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“…In [7][8][9] it was shown that, with some changes in the conventional control block diagram of the 3-phase IM, vector control of a 3-phase IM during an open-phase fault is possible. In the proposed methods in [7][8][9] transformation matrices were introduced and applied to the equations of a faulty IM.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In the proposed methods in [7][8][9] transformation matrices were introduced and applied to the equations of a faulty IM. The aim of using these matrices in [7][8][9] was to obtain a balanced structure for faulty motor equations. To simplify the vector control equations in [7][8][9], the backward components of stator voltage equations were neglected.…”

Section: Introductionmentioning

confidence: 99%

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Vector control of unbalanced 3-phase IM using forward and backward components

Jannati¹,

Idris²

2017

Turk J Elec Eng & Comp Sci

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Abstract:In some industries, continuous operation of 3-phase induction motors (IMs) even under faults until the scheduled maintenance time is essential. Conventional control techniques such as field-oriented control (FOC) cannot be used to control faulty IMs since this will result in significant oscillations in the speed and torque. Consequently, a new control approach must be developed for improving IM performance during fault conditions. This paper presents a method for vector control of 3-phase IMs under open-phase faults. The main advantage of this control scheme is its ability to handle not only one phase but also two phases of open-phase fault conditions. When applying this control technique to a faulty machine, only minor changes to the parameters used in the equations are needed and the conventional FOC algorithm used for healthy 3-phase IMs can still be used. In this paper, simulation and experimental results are presented to study the effectiveness of the proposed technique to control both healthy and faulty 3-phase IMs. The results show that the proposed technique reduces electromagnetic torque pulsations during open-phase fault conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vector control of unbalanced 3-phase IM using forward and backward components

Jannati¹,

Idris²

2017

Turk J Elec Eng & Comp Sci

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“…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][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].…”

Section: B Introductionmentioning

confidence: 99%

“…It is proposed in [1,6] to use a hysteresis current controller for rotor field-oriented control (RFOC) of unbalanced two-phase IMs. However, using a hysteresis current controller has drawbacks under light load conditions.…”

Section: B Introductionmentioning

confidence: 99%

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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A simple vector control technique for 3-phase induction motor under open-phase fault based on GA for tuning of speed PI controller

Jannati

Monadi

Yen

et al. 2014

2014 IEEE Conference on Energy Conversion (CENCON)

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This paper discusses a simple vector control technique for vector control of faulty 3-phase Induction Motor (3-phase IM under open-phase fault) based on Rotor FluxOriented Control (RFOC). It is shown in the adapted system for vector control of the faulty IM, it is essential for the speed PI controller coefficients to modify. For this reason, Genetic Algorithm (GA) is employed for tuning of speed PI controller. The results of this study show that the proposed drive system have acceptable good speed and torque responses.

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Speed Sensorless Vector Control of Unbalanced Three-Phase Induction Motor with Adaptive Sliding Mode Control

Cited by 17 publications

References 27 publications

Vector control of unbalanced 3-phase IM using forward and backward components

Vector control of unbalanced 3-phase IM using forward and backward components

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

A simple vector control technique for 3-phase induction motor under open-phase fault based on GA for tuning of speed PI controller

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