Energy storage flywheel braking method and device

The invention provides an energy storage flywheel braking method and device, and the device comprises a detection module and a control module, and the detection module is used for detecting the real-time voltage of an energy storage flywheel unit; and the control module generates a corresponding control signal by following the change condition of the real-time voltage, and adjusts the braking mode and the braking speed of the energy storage flywheel system based on the control signal. The control module carries out comparison operation on the real-time voltage and the threshold voltage set by the energy storage flywheel unit according to the change condition of the real-time voltage of the energy storage flywheel unit; generating a corresponding control signal according to a result of the comparison operation; according to the control signal, in combination with the remote braking scene and the alarm signal of the energy storage flywheel unit, the switching efficiency and the switching accuracy of the energy