Method for Estimation of Nonlinear λ-I Relation of Single Phase Power Transformer Core by Using On-line Measurable Parameters

2020/04/28 by Farhad Gh. Khodaei, Khodaei, Farhad Gh.
Engineering · Materials Science · #Control Systems and Identification #FOS: Electrical engineering #Magnetic Properties and Applications #Power Quality and Harmonics #Signal Processing (eess.SP) #Systems and Control (eess.SY) #electronic engineering #information engineering

paper · pdf · doi:10.48550/arxiv.2004.13583

openalex publication_date 2020/04/28 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

In design of new power transformers, reliable and efficient tools are required to expedite research and development processes. Some of these tools are used to interpret the data obtained from the transformer tests for better judgement about the response of the transformer. In this paper a clear procedure is proposed to estimate the nonlinear relation between flux and excitation current of power transformers by using online measurable data, which is the main reason of the input current harmonics. It is shown that the procedure computes this relation with very high precision and leads to identical results to that applied in simulation.

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