Construction of transformer core model for frequency response analysis with genetic Algorithm

This paper presents a novel model-based identification approach to determining laminated core parameters of power transformers on the basis of frequency response analysis (FRA) measurements. A genetic algorithm is employed for parameter identification of a transformer core model, established using the duality principle between magnetic and electrical circuits. A well-known lumped parameter model of a 3-phase transformer is used to simulate reference input impedance frequency responses for analyzing the identification accuracy of the proposed approach. It is suggested that the approach can be applied for transformer core modeling and FRA result interpretation at low frequencies.

[1]  Jose A. Cobos,et al.  Obtaining a frequency-dependent and distributed-effects model of magnetic components from actual measurements , 1999 .

[2]  S. A. Ryder,et al.  Diagnosing transformer faults using frequency response analysis , 2003 .

[3]  D. Roger,et al.  High frequency extension of non‐linear models of laminated cores , 2006 .

[4]  Goldberg,et al.  Genetic algorithms , 1993, Robust Control Systems with Genetic Algorithms.

[5]  N. Abeywickrama,et al.  High-Frequency Modeling of Power Transformers for Use in Frequency Response Analysis (FRA) , 2008, IEEE Transactions on Power Delivery.

[6]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[7]  A. J. Moses,et al.  Electrical steels : past, present and future developments , 1990 .

[8]  J. Pleite,et al.  Power transformer core fault diagnosis using frequency response analysis , 2006, MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference.

[9]  G. Slemon.  Magnetoelectric Devices: Transducers, Transformers and Machines , 1966 .

[10]  D. E. Goldberg,et al.  Genetic Algorithms in Search , 1989 .

[11]  K.G.N.B. Abeywickrama,et al.  Computation of Parameters of Power Transformer Windings for Use in Frequency Response Analysis , 2007, IEEE Transactions on Magnetics.

[12]  S. Gubanski,et al.  Determination of Complex Permeability of Silicon Steel for Use in High-Frequency Modeling of Power Transformers , 2008, IEEE Transactions on Magnetics.