Modelling and Detection of Stator Incipient Open Circuit Fault in Three-Phase Induction Motor

Chawla, Rajnish; Vinayak, B Akhil; Jagadanand, G

doi:10.1109/pedes.2018.8707681

Cited by 15 publications

(2 citation statements)

References 7 publications

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“…Some other papers studied the post-fault operation of 6PIM under open-phase or short-circuited phase conditions [10]- [14]. Also, several research is focused on the modelling [5], [15], [16] and control aspects [1], [17]- [19] at post fault condition. However, there is no comprehensive fault-tolerant capability analysis for different winding configurations.…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Capability Analysis of Six-Phase Induction Motor with Distributed, Concentrated and Pseudo-Concentrated Windings

et al. 2022

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Six-phase motors are becoming more popular because of their advantages such as lower torque ripple, better power distribution per phase, higher efficiency, and fault-tolerant capability compared to the three-phase ones. This paper presents the fault-tolerant capability analysis of a symmetrical six-phase induction motor equipped with distributed, conventional concentrated, and pseudo-concentrated windings under open-circuit fault scenarios. For further investigation, different load types such as constant-speed, constant-torque, and constant-power are applied to the motor. Two concepts of magnetic and physical phase separations are introduced as factors affecting the motor reliability. Analytically, these factors give an insight into how the pseudo-concentrated winding could be a faulttolerant alternative. Moreover, five parameters such as the change of output power, power loss, power factor, efficiency, and expected load loss are considered as the fault-tolerant capability parameters to evaluate the windings' reliability. The aforementioned parameters are reported using the finite element analysis for different fault scenarios and different load types. Although the baseline motor dimensions are not optimized for applying the pseudoconcentrated winding, the pseudo-concentrated shows a promising performance with high fault-tolerant capability.

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Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Capability Analysis of Six-Phase Induction Motor with Distributed, Concentrated and Pseudo-Concentrated Windings

et al. 2022

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“…Fault detection techniques of inverter‐fed induction motor require analysis of the motor under healthy and faulty conditions to extract the features correspond to the fault. Induction motor fault modelling helps the researchers to understand the behaviour of stator current, output torque and speed of motor under faulty/healthy conditions [4–6]. Principle slot harmonic (PSH) components are developed in motor current due to stator ITSC fault.…”

Section: Introductionmentioning

confidence: 99%

Wavelet‐based real‐time stator fault detection of inverter‐fed induction motor

Vinayak¹,

Anand²,

Jagadanand³

2019

IET Electric Power Applications

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This work proposes a novel real-time detection scheme for incipient stator inter-turn short circuit fault in voltage sources inverter-fed induction machines. Both non-sinusoidal input voltage and the short circuit fault causes harmonics in the motor stator current and these combined harmonic components complicate the spectral analysis-based diagnosis in inverter-fed motors. Aim of the analysis is to identify the effect of inverter fundamental/switching frequency on early detection and classification of the inter-turn fault. Discrete wavelet transform based analysis is performed on stator current using daubechies1 wavelet and statistical parameter L2 norm has been computed for the detailed and approximate coefficients at different decomposition levels to obtain the most precise feature of fault. Support vector machine-based learning algorithm is used for the accurate classification of the incipient fault. The proposed method is independent of switching and fundamental frequency, the modulation index and mechanical load. Real-time detection is possible even with infinitesimal fault current of 350 mA by the proposed method. The competency of the proposed algorithm is validated using simulation and verified by hardware with VSIfed induction motor drive.

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

et al. 2023

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Modelling and Detection of Stator Incipient Open Circuit Fault in Three-Phase Induction Motor

Cited by 15 publications

References 7 publications

Fault-Tolerant Capability Analysis of Six-Phase Induction Motor with Distributed, Concentrated and Pseudo-Concentrated Windings

Fault-Tolerant Capability Analysis of Six-Phase Induction Motor with Distributed, Concentrated and Pseudo-Concentrated Windings

Wavelet‐based real‐time stator fault detection of inverter‐fed induction motor

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

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