Unmanned aerial vehicle power system based on hydrogen fuel cell

Through the coordinated control of pneumatic thermal management, air pressure differential drive hydrogen supply and power dynamic buffer module, the thermal runaway and voltage oscillation of the UAV hydrogen power system in low air pressure and low temperature environments is solved, and stable power supply and hydrogen supply under all operating conditions is achieved, which improves flight safety and energy utilization efficiency.

CN120589221AInactive Publication Date: 2025-09-05NANJING JINGZHISENHUO TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511030778.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2025-09-05
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The heat exchange efficiency of the existing aircraft drone hydrogen power system has dropped sharply under low air pressure and low temperature environments, resulting in the stack temperature out of control, fuel supply pulsation and voltage oscillation, affecting flight safety.

Method used

The pneumatic thermal management module is used to accelerate the airflow to cool the fuel cell stack, combine the air pressure differential drive hydrogen supply module and the power dynamic buffer module, and dynamic adjustment and emergency response are achieved through the multi-domain collaborative control module to ensure stable stack temperature and voltage.

Benefits of technology

The stability of the stack temperature and voltage under high altitude maneuvering conditions is achieved, the risk of thermal runaway is eliminated, the continuity of hydrogen supply and the reliability of power supply is ensured, and the system energy consumption and noise emissions are reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120589221A_ABST
    Figure CN120589221A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of aircrafts, in particular to an unmanned aerial vehicle power system based on a hydrogen fuel cell, the system accelerates a flying head-on airflow through a pneumatic heat management module by utilizing a Venturi-shaped airflow channel, and a phase change temperature control layer is forcibly cooled to maintain the working temperature of a galvanic pile; the air pressure difference driven hydrogen supply module conveys hydrogen based on flying moving pressure difference, and stable hydrogen supply is achieved through humidity feedback; the power dynamic buffer module rapidly switches the super capacitor to supply power when the voltage fluctuation exceeds a threshold value; and the multi-domain cooperative control module dynamically adjusts the system according to the surface temperature difference and the humidity difference, and activates gradient emergency response through a stability index. The problems of thermal runaway, hydrogen supply oscillation and voltage fluctuation of the hydrogen power system under the high-altitude maneuvering working condition are solved, and the cruising ability and environmental adaptability of the aircraft are remarkably improved.
Need to check novelty before this filing date? Find Prior Art