Aircraft braking energy recovery system based on flywheel energy storage

Abstract

The invention relates to an aircraft braking energy recovery system based on flywheel energy storage. The system consists of a special motor on a front wheel of an aircraft, a motor power converter, a set of flywheel energy storage system and a braking energy recovery system controller, wherein the braking energy recovery system controller is used for controlling the motor power converter and the flywheel energy storage system. Braking energy produced in the processes of taking off and landing of the aircraft on a runway can be recovered to be used for the low-speed sliding of the aircraft between the runway and an airport terminal. After the aircraft braking energy recovery system based on flywheel energy storage is adopted, the time for using an aero-engine and a ground trailer can be remarkably shortened in the sliding period of the aircraft, the fuel consumption is reduced, the noise pollution and the emission of greenhouse gases can be reduced, the crowding phenomenon of a boarding gate and a parking apron can be relieved, and the take off on time performance is increased.

Description

technical field [0001] The invention relates to an energy recovery system configured with flywheel energy storage. Background technique [0002] At present, civil aircraft mainly rely on their own aero-engines or the traction of ground trailers to provide forward power during ground taxiing. This method, which has been used for decades, is easy to operate, but with the development of technology and the increasing standards for energy saving and emission reduction Strictly, new solutions are needed to allow aircraft to taxi on the ground using less or no fossil fuels. Moreover, the average daily throughput of major airports in the world has increased significantly, which has also increased the chance of ground trailers colliding with aircraft. Therefore, by improving the motor technology, a motor can be installed on the front wheel of the aircraft, thereby using the electric energy of the aircraft itself to drive it to taxi on the ground. U.S. Patent US8220740B2 discloses a...

AI Technical Summary

Problems solved by technology

The solution disclosed in this patent is theoretically feasible, but because the safe braking torque provided by the disk-type axial motor is very limited, and the space on the hub of the front wheel of a civil aircraft is limited, the number of motor rotor disks can not be installed without limit or the rotor can be enlarged The diameter of the disc, which conflicts with the braking torque required by the aircraft

Moreover, if the stored electric energy is consumed by the resistance, the braking energy is directly wasted. If batteries and capacitors are used to store, in the face of the huge impact energy generated at the moment of landing and the frequent take-off and landing of small and medium-sized aircraft, the two kinds of energy storage completely inappropriate

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