Abstract
This paper presents a non-isolated dual-input single-output (DISO) dc-dc converter capable of integrating input sources of distinct V-I characteristics for dynamic power flow control of renewable energy sources. The structure of the proposed converter is incorporated with the conventional boost and buck-boost converter having two semiconductor switches and three diodes. The proposed converter has a higher voltage gain than the conventional converter. Renewable energy sources like solar PV, fuel cells (FC) can be connected as inputs to the converter. In this paper, a closed-loop control strategy has been presented for maintaining the constant output voltage irrespective of variation in the sources. Four operating modes of this proposed converter are analyzed with switching pulses. Further, the dynamic response of the converter with load fluctuation has been discussed in the paper. The proposed converter under different modes of operation has been validated using MATLAB/Simulink.KeywordsDC-DC multiport converter (MPC)Renewable Energy Sources (RES)Hybrid Energy Systems (HES)
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