Simplified simulation and modeling technique for integrated magnetic components in power electronic converters

The inductance modeling technique is used as the traditional method for analyzing magnetic components. This model is simple to generate for individual components, i.e., an inductor and a transformer. However, it becomes difficult to realize this model for the integrated magnetic structures where multiple inductors and transformers exist on one assembly. In addition, it is difficult to model the effect of the magnetic saturation in the inductance model. This work presents a simple model for the discreet as well as integrated magnetic components. In this model, the magnetic circuit is converted to a pure electric circuit with capacitors; every winding is replaced with a pair of current controlled voltage sources, namely a Gyrator. Finally, the complete simulation model for the isolated Cuk converter with integrated magnetics is presented as an illustrative example.

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