INVESTIGATION OF CONTROL STRATEGIES FOR ISOLATED MULTIPORT PV BASED DC TO DC CONVERTER

electrical engineering

This paper proposes an isolated multiport dc–dc converter for simultaneous power management of multiple renewable energy sources, which are of different capacities. The proposed dc–dc converter is investigated by employing three MPPT control strategies for PV system to boost the output. It only uses one controllable switch in each port to which a source is connected. Therefore, it has the advantages of simple topology and minimum number of power switches. A general topology of the proposed converter is first introduced. Its principle and operation are then analyzed. The proposed converter is applied for simultaneous maximum power point tracking (MPPT) control of a solar power generation systems consisting of multiple different photovoltaic (PV) panels. The simulation results are provided to validate the effectiveness of using the proposed converter to achieve MPPT simultaneously for the all PV panels with proposed control strategies using MATLAB/SIMULINK Software.

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