Current monitoring for detecting inter-turn short circuits in induction motors

Stavrou, Andréas; Sedding, H.G.; Penman, J.

doi:10.1109/60.911400

Cited by 151 publications

(38 citation statements)

References 12 publications

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“…Another simple detection rule has been the frequency analysis. Shamsi [7], Stavrou [8], and Ebrahimi [9] utilized high frequency harmonic comparison. However, like the negative sequence detection scheme, these frequency analysis scheme need the rich pretest also.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of PMSMs under Inter Turn Short Faults

Choi¹,

Gu²,

Won³

2013

Journal of Electrical Engineering and Technology

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-A model of a permanent magnet synchronous motor (PMSM) with an inter turn short fault is proposed using a deformed flux model. The deformed flux model includes not only the fault winding flux information but also the inductance variation of the healthy winding considering the configuration of the winding distribution. With the deformed flux model and the positive sequence current assumption, the proposed model is derived in the positive and negative sequence synchronous reference frame (SRF). The finite elements method (FEM) simulation is applied to validate the proposed PMSM model with inter turn short fault.

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Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of PMSMs under Inter Turn Short Faults

Choi¹,

Gu²,

Won³

2013

Journal of Electrical Engineering and Technology

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“…Many works that can be found in the literature approach the problem in terms of analysis of airgap and axial flux signals in order to detect shorted turns in the winding: the mathematical formulations can be found in references [4], [5]. Previous works have demonstrated that the following equation gives the components in the air gap flux waveform as a function of shorted inter-turns.…”

Section: Stator Winding Failurementioning

confidence: 99%

Computational Modeling of Common Failures in Electrical Induction Machines

González-Parada¹,

Guzmán-Cabrera²,

Torres-Cisneros³

et al. 2015

IJCEE

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Abstract:One of the most common types of failures in induction motors with squirrel cage rotor is examined in this paper. Generally, such failure is characterized by: broken rotor bars and short circuit in the inter-turn winding. The broken rotor bars failure was simulated with two consecutive broken bars in order to see how the magnetic flux density within be affected. The inter-turn short circuit was simulated with 40% reduction of winding coil in an inter-turn short circuit for one of the phases. In both cases the simulation was performed with the finite element software FEMM © , which helped in obtaining the waveform of the flux density in the motor airgap and the magnetic core. The result obtained allows clear identification of the type of failures that occurs depending of type that will present in the simulation.

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“…Line current monitoring is less invasive to the machine's environment and the harmonics can be used as fault indicator [9][10][11][12]. The main drawback of this approach is the difficulty to evaluate the fault severity.…”

Section: ) Current Signature Analysismentioning

confidence: 99%

On-line stator winding fault diagnosis in induction generators for renewable generation

Albizu

Tapia

Sáenz

et al. 2004

Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521)

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Abstract-Renewable generation systems are increasing its presence in electrical power systems. For this reason, it is more important than ever to count with reliable and secure generation systems. In this way, the use of on-line diagnostic techniques in the maintenance schemes can be useful. This paper is about on-line condition monitoring in induction generators for small hydro stations and wind farms. In particular, stator winding fault diagnosis is analyzed. Currently, there are diagnostic techniques that are used in induction motors, but they could be used in generators as well. This paper analyzes the induction generator characteristics and describes the appropriate diagnostic techniques. These techniques depend on the machine voltage. As most of the induction generators are low voltage machines, the diagnosis of stator winding faults will be based on the detection of inter-turn short circuits. Most of the inter-turn short circuit diagnostic techniques are noninvasive as they are based on voltage and line current monitoring.I. INTRODUCTION Renewable energy generation, particularly energy from wind, water, solar power and biomass is a central object of current energy policies. Renewable energy has an important role to play in reducing CO 2 emissions. It also helps to improve the security of energy supply by reducing the dependence on imported energy sources. Renewable energy sources are expected to be economically competitive with conventional energy sources in the medium to long term.Several types of electrical power generation sources are emerging with different degrees of development and future prospective but currently, wind generation is increasing its presence in an amazing way, due to several characteristics: the production has zero fuel cost, it is environmentally clean and the total energy production can be quite important. Hence, wind energy has turned out to be one of the most important and promising sources of renewable energy. The installed wind power increase expectations for the next few years are high. This energy source will represent a significant proportion of total installed power in the power system. Small hydro is a proven technology, which has now reached maturity. Ideal for electrification of remote sites, it also serves as a complement to national electrical production in the case of strong demand and consumption.Both wind and hydro systems convert renewable energy into mechanical energy first and into electrical energy afterwards. The electric generators can be either asynchronous or synchronous.

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Current monitoring for detecting inter-turn short circuits in induction motors

Cited by 151 publications

References 12 publications

Modeling and Analysis of PMSMs under Inter Turn Short Faults

Modeling and Analysis of PMSMs under Inter Turn Short Faults

Computational Modeling of Common Failures in Electrical Induction Machines

On-line stator winding fault diagnosis in induction generators for renewable generation

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