Abstract:
High voltage gain Integration with Renewable Energy Sources makes DC-DC boost converters popular in grid-connected applications. Photovoltaic (PV) arrays or Fuel Cells (FCs) create restricted DC voltages, thus for high power and high voltage applications, raise them first.
This work offers a single-switched, high-gain, efficient DC-DC boost converter combining switched-capacitor and switched-inductor cells. These blocks can readily boost voltage and provide input current with low ripples. A switched-inductor block and input inductor relocation will do this.
Inductors have lower input current stresses when magnetized in parallel and demagnetized in series. The suggested boost converter uses a single switch to reduce control circuit complexity for a fixed DC voltage at the output side for flexible input voltages or loads.
Adding diodes and capacitors to the switched-capacitor cell increases its voltage. An extensive mathematical analysis of continuous (CCM) and discontinuous conduction modes (DCM) and a 200 W laboratory-scaled prototype will be given. Hardware tests verify theoretical analysis and simulation results.
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