ELECTRIC POWER SUPPLY SYSTEM HAVING ACTIVE POWER CONTROL DEVICE

摘要

The electric power supply system having an active power control device according to the present invention is a component of a flying object and comprises: a solar cell for converting solar energy into electric energy and outputting the electric energy; a fuel cell loaded in the flying object for converting fuel energy into electric energy by an electrochemical reaction and outputting the electric energy; a battery for supplementing shortage in the power supplied to the flying object from the solar cell and the fuel cell, and storing surplus energy; and an active power control device for combining and distributing, to loads, power generated from the solar cell, the fuel cell and the battery by simultaneously connecting to the solar cell, the fuel cell and the battery. In contrast to the conventional passive manner, the present invention can maximize the efficiency of loaded fuels by effectively distributing power from the respective power sources using the controllable output of the fuel cell according to the power required by the flying object and the performance of the solar cell according to the weather. Furthermore, the present invention has an effect of stably maintaining a minimum state of charge (SOC) of the battery, thereby guaranteeing the mission capability of the flying object.