High-endurance zero-emission hybrid system for aviation

Abstract

The invention discloses a high-endurance zero-emission hybrid system for aviation. The system comprises a solar energy cell, a lithium ion storage battery system, a solid oxide fuel cell system and apower control system; the power control system is connected to the outputs of the solar cell, the lithium ion battery and the solid oxide fuel cell system; the solar energy cell is used to power aircraft electrical equipment and lithium-ion battery systems on a daily basis; the lithium-ion battery is used to power aircraft electrical equipment when the aircraft dynamic is momentarily depleted, andto provide energy when the solid oxide fuel cell system is started; the solid oxide fuel cell system is used for powering aircraft electrical equipment. The invention is energy efficient, environmentally friendly, and has extremely low noise and vibration levels; the system generates small heat so that it is almost impossible for the infrared sensor to detect, and the concealment is good for military use; the structure is easy and it is easy to use and maintain, and has good economy; the high reliability of the power and propulsion system also enhance the safety of the aircraft.

Description

technical field [0001] The invention relates to the field of new energy power for high-altitude and long-endurance all-electric aircraft, in particular to an aviation high-endurance and zero-emission hybrid power system. Background technique [0002] For a century, airplanes have played an extremely important role in human life and in promoting economic development and social progress, but they have also brought negative impacts on the human living environment. Examples include noise pollution near airports, air quality degradation caused by CO2 emissions from aircraft, and the greenhouse effect. In addition, piston general-purpose aircraft also produce ultrafine particle pollution and heavy metal lead pollution. Therefore, with the advent of the era of low-carbon economy, it is necessary to meet the new requirements of the engine on cost, fuel, environment, etc., and the research on new energy aero-engines is becoming more and more popular. At present, aircraft powered by...

AI Technical Summary

Problems solved by technology

[0003] Pure solar cells and pure fuel cell power systems do solve energy and environmental problems, and even solar cells can be mixed with lithium batteries to achieve flight across the day and night, but due to the sacrifice of aircraft structural strength, especially the strength of the wing structure, its The working environment is limited to the stratosphere where the airflow is relatively gentle

For the pure fuel cell power system, the power-to-weight ratio of the entire fuel cell system and the limitations of the poor dynamic characteristics of the fuel cell make it difficult for the pure fuel cell power system to provide a long-term flight for the aircraft.

In addition, due to the low density of hydrogen and liquid hydrogen, the storage of hydrogen fuel requires large-volume or high-pressure containers, but the storage and transportation of hydrogen is still a big problem, which limits its use as the sole power source for aircraft.

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