Multi-port equivalent scheme for multi-winding traction transformers

Author： Hayek Joseph El Sobczyk Tadeusz J.

ISSN： 0332-1649

Source： COMPEL: Int J for Computation and Maths. in Electrical and Electronic Eng., Vol.31, Iss.2, 2012-03, pp. : 726-737

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Abstract

Purpose ‐ The purpose of this paper is to present a new type of equivalent scheme of multi-winding transformers. Design/methodology/approach ‐ An inventory representation of relations between currents and flux linkages has been interpreted as a multi-port purely inductive circuit. Findings ‐ An equivalent scheme in the form of a multi-port circuit, and a method of its parameters determination from field computations. Research limitations/implications ‐ Core losses are not considered in the multi-port equivalent scheme. Practical implications ‐ A new equivalent scheme could become a basic tool for modeling multi-winding transformers. Originality/value ‐ The introduced multi-port equivalent scheme eliminates disadvantages of classical T-type equivalent scheme of transformers.