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Simulation of magnetic component models in electric circuits including dynamic thermal effects

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3 Author(s)
Wilson, P.R. ; Dept. of Electron. & Comput. Sci., Southampton Univ., UK ; Ross, J.N. ; Brown, A.D.

It is essential in the simulation of power electronics applications to model magnetic components accurately. In addition to modeling the nonlinear hysteresis behavior, eddy currents and winding losses must be included to provide a realistic model. In practice the losses in magnetic components give rise to significant temperature increases which can lead to major changes in the component behavior. In this paper a model of magnetic components is presented which integrates a nonlinear model of hysteresis, electro-magnetic windings and thermal behavior in a single model for use in circuit simulation of power electronics systems. Measurements and simulations are presented which demonstrate the accuracy of the approach for the electrical, magnetic and thermal domains across a variety of operating conditions, including static thermal conditions and dynamic self heating

Published in:

Power Electronics, IEEE Transactions on  (Volume:17 ,  Issue: 1 )