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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2009

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High efficiency contactless energy transfer system with power electronic resonant converter

Moradewicz A., Kaźmierkowski M.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2009

Vol. 57, nr 4

375-381

A novel Inductive Contactless Energy Transfer (ICET) system is presented in this paper. The energy is transferred using a rotatable air gap transformer and a power electronic converter. To minimize total losses of the system a series resonant circuit is applied, assuring zero current switching condition for IGBT power transistors. The analytical expression of the transfer dc voltage gain is given and discussed. The developed ICET system is characterized by high efficiency and fast FPGA based controller and protection system. The resonant frequency is adjusted by extreme regulator which follows instantaneous value of primary peak current. Simulated and experimental results which verify and illustrate operation of developed 3 kW laboratory model are presented.