NDLI: BA to construction of equivalent circuit of a transformer winding from frequency response analysis measurement

Content Provider	IET Digital Library
Author	Chaouche, Moustafa Sahnoune Houassine, Hamza Moulahoum, Samir Colak, Ilhami
Abstract	The calculation of high-frequency model parameters of a winding is crucial for the integrity assessment of transformer winding damages and its severity. Bat algorithm (BA) is one of the modern and efficient methods used in computational intelligence due to its efficiency to obtain better results for complicated non-linear problems. In this study, an iterative method to ensure the mutually coupled equivalent model synthesis of an actual isolated transformer winding is proposed via bat search algorithm based on frequency response analysis data measurement (resonance frequencies, equivalent inductance and effective capacitance). The equivalent ladder network synthesis of transformer winding using the BA is based on the construction of the search space of the model parameters, thus each model element to be identified must be limited between two bounds (the upper and lower bounds) based on constraints and inequalities defining the model parameters. The effectiveness of the BA was tested by simulation and experimentally on two case studies of two isolated transformer windings with an air core. Furthermore, a comparative study of BA, particle swarm optimisation and the magnitude vector fitting was made in terms of accuracy and convergence speed.
Starting Page	728
Ending Page	736
Page Count	9
ISSN	17518660
Volume Number	12
e-ISSN	17518679
Issue Number	Issue 5, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/12/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2017.0418
Journal	IET Electric Power Applications
Publisher Date	2018-01-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Actual Isolated Transformer Winding Air Core BA Bat Algorithm Bat Search Algorithm Combinatorial Mathematics Complicated Nonlinear Problem Computational Intelligence Equivalent Circuit Equivalent Circuit Construction Equivalent Ladder Network Synthesis Frequency Response Frequency Response Analysis Data Measurement High-frequency Model Parameter Calculation High-frequency Transformer Inductors And Transformer Interpolation And Function Approximation Iterative Method Ladder Network Magnitude Vector Fitting Model Parameter Search Space Mutually Coupled Equivalent Model Synthesis Numerical Analysis Optimisation Technique Particle Swarm Optimisation Search Problem Transformer Cores Transformer Winding Damage Integrity Assessment Transformer Windings
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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