Abstract
Conventional unmanned aerial vehicles power systems only have one MPPT controller to operate. And MPPT controller will be influenced by loss of solar arrays and multiple maximum power points. In this paper, an innovative topology of UAV power system is proposed as well as generating a related MPPT control strategy to keep output voltage increase slowly. Hardware circuit design is presented based on selection of power diode, input filter capacitance, output filter capacitance and parallel diode. A prototype of 1.2kW power supplies is implemented to verify the proposed topology and MPPT control strategies.
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