A practical method for building the FE-based phase variable model of single phase transformers for dynamic simulations Conference

Mohammed, OA, Liu, Z, Liu, S. (2006). A practical method for building the FE-based phase variable model of single phase transformers for dynamic simulations . 173. 10.1109/CEFC-06.2006.1632965

cited authors

  • Mohammed, OA; Liu, Z; Liu, S

authors

abstract

  • This paper studies the development of physical circuit models of single phase transformers based on FE analysis. We have proposed a practical method to build the circuit model from FE solutions for dynamic simulations. The developed circuit model produced the accuracy of the full FE model without the need for excessive number of FE computations. The variation of flux linkages with winding currents are used to represent the nonlinear magnetization of the core. An equivalent excitation current variable im is defined. The flux linkages are described as functions of im and i1 or i 2. They are calculated from the circuitfield coupled FE analysis. The validity of the developed FE-based circuit model is demonstrated by simulating the inrush current, examining the excitation currents variation with the core saturation levels, and comparing the developed FE-based model with the full FE model. ©2006 IEEE.

publication date

  • January 1, 2006

Digital Object Identifier (DOI)

International Standard Book Number (ISBN) 10

International Standard Book Number (ISBN) 13

start page

  • 173