Title :
Transient analysis of power transformers using magnetic and electric equivalent circuits
Author :
Haydock, Lawrence ; Holland, Scott A.
Author_Institution :
Nottingham Trent Univ., UK
fDate :
9/1/1994 12:00:00 AM
Abstract :
The paper describes work being done in the modelling of transformers, concentrating on predicting the effects of the stray magnetic field as it relates to transient and non-sinusoidal conditions, with particular reference to traction, rectifier and other applications. Considerable progress has been made with steady-state sinusoidal modelling using finite elements. This work will be used to show the development of an approach using Distributed Equivalent Circuits to model the transformer with transient and variable frequency effects. Non-linear permeances are modelled using a polynomial. The core loss is, at present, linear
Keywords :
equivalent circuits; finite element analysis; magnetic leakage; polynomials; power transformers; rectifiers; traction; transformer magnetic circuits; transients; Distributed Equivalent Circuits; electric equivalent circuits; finite elements; linear core loss; magnetic equivalent circuits; nonlinear permeances; nonsinusoidal modelling; polynomial; power transformers; rectifier; stray magnetic field; traction; transient analysis; variable frequency effects; Core loss; Equivalent circuits; Finite element methods; Frequency; Polynomials; Power transformers; Predictive models; Rectifiers; Steady-state; Transient analysis;
Journal_Title :
Magnetics, IEEE Transactions on
