Nithya. K , M. Ramasamy
A multi-input DC-DC boost converter is proposed to draw power from several input sources and to supply the regulated output voltage for the load from the power sources. As the conventional source of energy is rapidly depleting and the cost of energy is rising, we turn towards renewable energy sources. Reason to choose renewable energy is because of its abundance and distribution throughout the earth. Input sources include renewable energy sources like Photovoltaic (PV) source and Wind source. A storage element battery is used to provide uninterrupted supply to the load. The battery utilized is bidirectional in its power flow hence the converter topology enables the storage element to be charged or discharged through input power sources. Multi-Input Converter (MIC) can deliver power from all of the input sources to the load either individually or simultaneously. MICs reduce the system size and cost by reducing the number of components. Three different operation modes are discussed based on the consumption of the battery. A PI controller is used for the closed loop performance of MIC. The different operating modes of the proposed converter are simulated using MATLAB.
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