Proceedings ArticleDOI
Finite element method to construct a lumped parameter ladder network of the transformer winding
Moustafa Sahnoune Chaouche,Hamza Houassine,Samir Moulahoum,Ilhami Colak +3 more
- pp 1092-1096
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TLDR
The application of the finite element method (FEM) is discussed to construct a lumped parameters ladder network of an actual transformer winding of a high-frequency transformer winding.Abstract:
Power transformers are one of the critical points in the renewable energies networks for the transport and distribution of the electric energy. As a result, the diagnosis of transformers is necessary to ensure the reliability and service life. The frequency behavior of the transformer winding is generally studied using a high-frequency model to diagnose the various damages of the winding. For this purpose, this paper discusses the application of the finite element method (FEM) to construct a lumped parameters ladder network of an actual transformer winding. The investigated coil is discretized in five (05) identical sections that includes 30 turns for each. In addition, after the experimental validation of the adopted model, a diagnostic study to the axial deformations of the transformer winding was made using the parameters analysis of the detailed model and the transfer function obtained from the FRA test.read more
Citations
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Journal ArticleDOI
Enhanced modelling of the transformer winding high frequency parameters identification from measured frequency response analysis
TL;DR: In this article, the authors presented a luxurious and time-efficient computation method based on particle swarm optimisation with simulated annealing (PSO-SA) method to construct an equivalent circuit of a transformer winding.
Journal ArticleDOI
Sensitivity analysis of different components of transfer function for detection and classification of type, location and extent of transformer faults
TL;DR: In this paper, sensitivity analysis of four components of the transfer function (TF), i.e., amplitude, phase, real and imaginary components of TF, is investigated for different defects, and the classification of type, location, and extent of different defects is carried out using support vector machine with cubic polynomial kernel.
Journal ArticleDOI
Low and high frequency model of three phase transformer by frequency response analysis measurement
TL;DR: In this paper, a cascade of parallel RLC cells, whose parameters are identified using the frequency response analysis data measurements obtained on each transformer phase, are used to simulate the frequency behavior of the transformer windings without reference to the geometries of the coils.
References
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Journal ArticleDOI
A Novel Online Technique to Detect Power Transformer Winding Faults
Ahmed Abu-Siada,Syed Islam +1 more
TL;DR: In this paper, a novel online technique is introduced to detect the internal faults within a power transformer by constructing the voltage-current (V - I) locus diagram to provide a current state of the transformer.
Journal ArticleDOI
Sweep frequency response analysis (SFRA) for the assessment of winding displacements and deformation in power transformers
J.R. Secue,Enrique E. Mombello +1 more
TL;DR: A survey on the alternatives in the measurement techniques and interpretation of sweep frequency response analysis measurements, describing some sources of uncertainty in applying this methodology can be found in this paper, however, criteria like the limits of normal variation of the parameters, and the features observed in the records in the presence of a determined type of fault could not coincide.
Journal ArticleDOI
Optical fiber sensor-based detection of partial discharges in power transformers
TL;DR: In this paper, a fiber optic acoustic sensor system is designed and tested for on-line detection of the partial discharges inside high voltage power transformers using an extrinsic Fabry-Perot interferometer.
Journal ArticleDOI
Analysis of Short-Circuit Performance of Split-Winding Transformer Using Coupled Field-Circuit Approach
G. B. Kumbhar,S.V. Kulkarni +1 more
TL;DR: In this paper, the axial short-circuit forces in split-winding transformers were analyzed under both preset and postset shortcircuit test conditions, and it was shown that even though postset method eliminates inrush related problems, there is not much respite in short circuit forces.
Journal ArticleDOI
Improved modelling of power transformer winding using bacterial swarming algorithm and frequency response analysis
TL;DR: In this article, an improved modeling of transformer windings based on bacterial swarming algorithm (BSA) and frequency response analysis (FRA) has been discussed, with the purpose to accurately identify transform windings parameters using a model-based identification approach.
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