Double-port interface for small scale renewable sources integration

Integration of renewable energy sources such as wind power and solar photovoltaic is an ongoing research worldwide. In this paper a hybrid power electronics interface that combines the energy from solar photovoltaic panel and wind generator into a small scale stand-alone system is proposed. Several other works have proposed a parallel injection of various renewable energy sources on a single DC-bus. This paper proposes a double-port boost-buck-boost (BBB) topology that enhances the power capability of the PV-Wind power system during partial solar irradiation and weak winds. After the description of operation of this double-port interface, a simulation model for 1 kW PV array integrated together with a 1.5 kW wind generator was developed and simulation results presented.