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In this work, a new topology is proposed to integrate large solar photovoltaic installations to high-voltage DC grid, which is efficient, economical and flexible in its operation. The proposed system consists of a PV array-fed DC–DC boost converter, grid-connected DC–DC boost converter circuits and hybrid controller. The hybrid controller proposed here consists of the random search method (RSM)-based...
The increased concerns for environmental protection and energy conservation had led to accelerated growth in PV technologies, however large scale integration of this to an AC grid will have a serious impact on power system operation. Development of DC power system is chosen as a solution to overcome many of those impacts. Photovoltaic arrays used here will generate an output at a low voltage level,...
The non-conventional energy sources like photovoltaic cells and fuel cells will be at a low voltage level, this must be stepped up considerably for DC grid integration, for which we need a high voltage gain DC-DC boost converters. In this paper a multilevel boost converter (MLBC) topology is presented which consists of a simple boost converter and switched capacitor technique to provide high voltage...
Solar energy source is one of the most promising energy sources in nature, but the output power generated by photovoltaic (PV) devices which converts sun's light energy to electrical energy, is a nonlinear function of the external environment. To improve the performance of PV devices in such cases, design of maximum power point tracking (MPPT) function is more important. In addition to it, in DC grid...
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