A hardware decoupling method for series-resonance-based isolated three-port DC/DC converters

This paper investigates a hardware decoupling method in isolated three-port converters (TPCs). According to the equivalent AC circuit model of the series-resonance-based isolated TPC, the power exchange among different ports can be derived. Further, the transfer function matrix of output currents and the phase-shifting angles can be obtained, and the decoupling control between the ports of a TPC can be demonstrated. Simulation and experimental results show that independent control is achieved by using the hardware decoupling method.