Large Signal Modeling of LCC-S Power Converter Considering Parasitic Components for UWPT Applications

Wireless Power Transfer is one of the most interesting solution to transmit electric power in undersea environments, thanks to the absence of direct contacts between power providers and loads. Among the possible converters to realize wireless transmission, LCCs compensation deserves a specific attention due to the good comprimise granted between efficiency transmission and simplicity of the converter electric architecture. A mathematical model based on Extended Describing Functions has been applied to this converter to easily analyze its performances in several working scenarios (undersea environment included), taking into account not only steady-state results, but also transients. Parasitic components associated to the converter inductors, capacitors and diodes have been considered in the model. The model has been validated comparing its predictions with simulations of the LCCs converter performed in Simulink environment.