A fixed-wing UAV air-cooled fuel cell dual-stack integrated power system

Abstract

The invention provides a fixed-wing unmanned aerial vehicle air-cooled fuel cell dual-stack integrated power system, belonging to the field of fuel cells, comprising a fuselage, a power motor, a high-pressure hydrogen storage tank, a wing, two symmetrically arranged in the middle of the fuselage or The air-cooled fuel cell stack on the wing, and two heat dissipation systems corresponding to the air-cooled fuel cell stack; the air flow channel of the stack is a parallel wave-shaped flow channel; when the stack is arranged in the middle of the fuselage, the heat dissipation system It also includes a cooling fan; when the stack is set on the wing, the power system is suitable for the drone with auxiliary propellers on the wing, and the cooling system also includes the front wing shroud; when the drone starts or flies at a low speed, During medium-speed flight and high-speed flight, the reactor temperature is controlled to be within the ideal temperature range through different heat dissipation methods. The invention also proposes a consistency guarantee control scheme during the operation of the dual-stack system, which improves the stack performance consistency while ensuring the overall electric power demand.

Description

technical field [0001] The invention belongs to the field of fuel cells, and in particular relates to a fixed-wing unmanned aerial vehicle air-cooled fuel cell dual-stack integrated power system. Background technique [0002] A fuel cell is an environmentally friendly, high-efficiency, long-life power generation device. Taking the proton exchange membrane fuel cell (PEMFC) as an example, the fuel gas enters from the anode side, the hydrogen atoms lose electrons at the anode and become protons, the protons pass through the proton exchange membrane to the cathode, and the electrons also reach the cathode through the external circuit at the same time. Protons, electrons and oxygen combine to form water. Fuel cells convert chemical energy into electrical energy in a non-combustion manner, and their direct power generation efficiency can be as high as 45% because they are not limited by the Carnot cycle. With the battery stack as the core power generation device, the fuel cell ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of poor stack heat dissipation and low efficiency of the power system in the above-mentioned prior art, the present invention proposes an air-cooled fuel cell double-stack integrated power system for fixed-wing unmanned aerial vehicles, which ensures the weight balance of the unmanned aerial vehicle and at the same time Improve the performance consistency of the stack, and improve the power generation efficiency of the fuel cell system and the endurance of the drone

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