Unmanned aerial vehicle motor phase loss monitoring protective device

Abstract

The present invention discloses an unmanned aerial vehicle motor phase loss monitoring protective device, and relates to the field of the unmanned aerial vehicle detection technology. The device comprises an electrical regulation module, a brushless direct current motor, a voltage sampling signal conversion circuit, an MCU module and an unmanned aerial vehicle flight control system; the electrical regulation module is connected with the brushless direct current motor; the voltage sampling signal conversion circuit is connected between the circuits of the electrical regulation module and the brushless direct current motor; the voltage sampling signal conversion circuit, the MCU module and the unmanned aerial vehicle flight control system are connected in order; the unmanned aerial vehicle flight control system is connected with a parachute driving circuit and an alarm unit; and the parachute driving circuit is connected with a parachute execution mechanism. The unmanned aerial vehicle motor phase loss monitoring protective device can perform monitoring aiming at the power motor of the unmanned aerial vehicle, can transmit the abnormal information to a precise and complex flight control system and can provide response scheme of faults with automatic control in the full process and with no need for manual operation.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle detection, in particular to a phase failure monitoring and protection device for an unmanned aerial vehicle motor. Background technique [0002] Among the low-voltage motor damage accidents in recent years, about one-third of them are caused by the open-phase operation of the motor. People have different views on the harm caused by motor phase failure to the motor, which are mainly reflected in two points: the first point is that the phase failure increases the motor current, resulting in overheating and damage to the motor; the second point is that the phase failure causes the motor winding A high voltage counter electromotive force is generated at both ends to cause breakdown. In fact, when the motor phase breaks, a back electromotive force several times higher than the rated voltage is generated at both ends of the winding at the instant of phase failure. Instantaneous action ...

AI Technical Summary

Problems solved by technology

The application of the existing technology is limited, and it can only monitor conventional motors. It is difficult to monitor the power motors that are not aimed at drones, and it is difficult to transmit abnormal information to the sophisticated flight control system, and provide solutions for flight failures.

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