Overspeed protection device and method for flywheel energy storage box and computer readable storage medium

Abstract

The invention discloses an overspeed protection device and method for a flywheel energy storage box and a computer readable storage medium. The overspeed protection device comprises a mounting seat which is disposed outside the flywheel energy storage box; a detection module, arranged in the flywheel energy storage box and used for detecting a speed signal and a vibration frequency signal of a rotor in the flywheel energy storage box; a processing module, arranged on the mounting seat, the detection module being electrically connected with the processing module, and the processing module being used for acquiring the speed signal and the vibration frequency signal and determining a first control instruction according to the speed signal and the vibration frequency signal; and an execution module, arranged on the mounting seat. The execution module is electrically connected with the processing module and the flywheel energy storage box, and the execution module controls the rotating speed of the flywheel and the power-on or power-off of the flywheel energy storage box according to the first control instruction, so that the high-speed rotating process of the flywheel is monitored, and the risk of flywheel explosion or disassembly is prevented; therefore, the operation of the flywheel energy storage box is protected.

Description

technical field [0001] The invention relates to the technical field of flywheel energy storage, in particular to an overspeed protection device, method and computer-readable storage medium for a flywheel energy storage box. Background technique [0002] In the prior art, flywheel energy storage is to store energy in the form of kinetic energy in a high-speed rotating flywheel, which is mainly composed of flywheel rotors made of high-strength alloys and composite materials, high-speed bearings, motor / generators, power converters and Vacuum safety cover (vacuum chamber) composition. The basic principle is to drive the flywheel to rotate at a high speed with electric energy, and convert the electric energy into kinetic energy of the flywheel for storage. When electric energy is needed, the flywheel decelerates, and the motor is converted into a generator to convert the kinetic energy of the flywheel into electrical energy. The acceleration and deceleration of the flywheel real...

AI Technical Summary

Problems solved by technology

With the technological development of material science, composite material rotors with super strong radial and hoop stresses are gradually replacing all-steel flywheels. However, when a flywheel encounters a fault, it cannot be limited immediately due to the limitation of the flywheel material and its mass. Speed, emergency stop, deceleration and other requirements, the flywheel is prone to disintegration or even explosion and other serious consequences

Therefore, the deceleration problem of the system has become a bottleneck in the development and application of flywheel energy storage technology.

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