Protection of power transformer based on modeling and simulation of transformer faults using MATLAB/SIMULINK

Bhushan P. Patil , Saurav Ravindra Koli , Yash Manoj Chaudhari

Transformer differential protection, inrush currents, Inter-turn faults, Modelling, MATLAB

The magnetizing inrush current of power transformers poses a significant challenge to the differential protection relay's successful identification of internal fault currents. To differentiate between these two types of currents, this paper proposes an approach that uses wavelet coefficients and relies on feature extraction based on discrete wavelet transforms. The wave shape recognition criteria generated from instantaneous differential currents are used to determine the discriminating function. The most serious problems in transformers are issues with their internal windings. To protect transformers, differential protection schemes are commonly used. However, a differential overcurrent relay may not detect an internal fault early on because the increase in current is too small when only a few turns are shorted. Due to the seriousness of internal winding problems, the distribution system must be shut down, and the transformer can be completely damaged. Conducting real-life experiments on these defects isn't practical because it could ruin the transformer. Therefore, computer simulations are used to study these issues. Most studies on internal winding failures in transformers use EMTP simulations. In these studies, the transformer is represented using equations and its equivalent circuit. The primary voltages are used as inputs, and the secondary currents are the outputs. MATLAB/SIMULINK is used to model and simulate transformer inter-turn failures. The simulations use equations to represent these faults, and the results confirm the accuracy of the model.

Published Paper   E-Certificate

"Protection of power transformer based on modeling and simulation of transformer faults using MATLAB/SIMULINK", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.9, Issue 5, page no.1552 - 1557, May-2024, Available :https://ijsdr.org/papers/IJSDR2405205.pdf

Volume 9 Issue 5, May-2024

Pages : 1552 - 1557

Paper Reg. ID: IJSDR_211734

Published Paper Id: IJSDR2405205

Downloads: 000347636

Research Area: Engineering

Country: -, -, India

Published Paper PDF: https://ijsdr.org/papers/IJSDR2405205

Published Paper URL: https://ijsdr.org/viewpaperforall?paper=IJSDR2405205

ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Publisher: IJSDR(IJ Publication) Janvi Wave

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