The feasibility to model a 3-leg core type medium frequency power transformer by use of a dual Cauer circuit

• A model for medium frequency power transformers is suggested, The model is able to treat arbitrary topologies by use of Cauer circuits for core and windings. An implementation example is given for a 1-phase transformer with turn ratio 1:1. The model can be extended to include winding insulation materials by use of lumped capacitive and resistive circuit elements.

Nyckelord

power transformers

eddy currents - loss

skin effect

hysteresis loss

medium frequency

modelling

hysteresis

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