Muhammad Azhar, Muhammad Yasir Ali Khan, Laraib Saeed, J. Saleem, A. Majid
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Design and Analysis of Bidirectional SEPIC-Based Boost Multi-Port Converter
A non-isolated Single-Ended Primary-Inductor Converter (SEPIC)-based bidirectional Multi-Port Converter (MPC) is presented in this paper. Inputs of the topology are Renewable Energy Sources (RES) such as solar and wind, which are stochastic in nature. A battery port is present to support the circuit in the absence of RES. A feedback power flow path is provided to charge the battery from output capacitor as well as to support the load in the absence of RES. DC output voltage level of RES are low, this voltage needs to boost for different applications. The proposed topology has non-inverting boost output voltage levels. A coupling capacitor is used to couple energy from input to the load. Two operating modes are defined in different time intervals depending upon inductors charging and discharging. A lS.7W converter is designed using MATLAB/Simulink to validate the theoretical concepts.
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