Coupled field-circuit problem:a generalized signal flow graph description of the circuit equations*

Author: De Gersem H.   Mertens R.   Pahner U.   Hameyer K.   Belmans R.  

Publisher: Edp Sciences

E-ISSN: 1286-0050|1|2|247-251

ISSN: 1286-0042

Source: EPJ Applied Physics (The), Vol.1, Iss.2, 2010-03, pp. : 247-251

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Abstract

A generalized tree theory is presented in order to deal with all possible connections of solid and stranded conductors in an electric circuit coupled with a magnetic finite element model. A generalized Signal Flow Graph is used to determine the unknown currents and voltages necessary to describe the circuit behaviour in a symmetric way. The method is applied to an example. The aim of this paper is to state a general network theory able to deal with all possible connections of voltage and current sources, impedances, solid and stranded conductors leading to a symmetric and compact coupling matrix without zero diagonals.