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Co Simulation Of Electric And Magnetic Circuits

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2003 Annual Conference


Nashville, Tennessee

Publication Date

June 22, 2003

Start Date

June 22, 2003

End Date

June 25, 2003



Conference Session

ECE Education and Engineering Mathematics

Page Count


Page Numbers

8.300.1 - 8.300.14



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Paper Authors

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James Spreen

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This paper reviews magnetic circuit models of magnetic structures, developed as analogs of electric resistor networks. It demonstrates magnetic simulation by circuit simulation of a magnetic circuit representing a three-winding magnetic structure, using known winding currents to calculate magnetic fluxes. Simultaneous simulation of both a magnetic circuit representing a magnetic structure and electric circuits connected to the windings eliminates the need to specify winding currents as known independent sources. This technique is here termed "co-simulation" for brevity. The controlled sources and auxiliary circuits necessary to implement co-simulation are arranged with winding turns as factors in controlled sources, to allow easy adaptation for different windings. Co-simulation is illustrated using the same three- winding structure used in the magnetic simulation, with a pulse input to one winding and a resistive load on the other two windings. The results of this co-simulation are compared to an electric circuit simulation in which the magnetic structure is described with three self inductances and three coupling coefficients. Extensions of co-simulation to account for nonlinear magnetic core behavior and core loss are described.

Spreen, J. (2003, June), Co Simulation Of Electric And Magnetic Circuits Paper presented at 2003 Annual Conference, Nashville, Tennessee. 10.18260/1-2--11384

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