Motor overcurrent locked-rotor protection method and device, electron speed regulator and unmanned aerial vehicle

Abstract

The embodiment of the invention relates to a motor overcurrent locked-rotor protection method and device, an electron speed regulator and an unmanned aerial vehicle. The method comprises the followingsteps: determining the current tap position of the electron speed regulator, determining the current current threshold value according to the current tap position, obtaining current motor current, ifthe current motor current is greater than the current current threshold value, judging that the rotor of a motor is locked, wherein the electron speed regulator comprises at least two tap positions,and each tap position is provided with a corresponding current threshold value, and / or obtaining current motor rotate speed, if the current motor rotate speed is smaller than the minimum rotate speedthreshold value, judging that the rotor of the motor is locked; and if the rotor locking time of the motor exceeds a preset first time threshold value, starting a motor protection measure. Whether therotor of the motor is locked is judged, the motor protection measure is started when the rotor of the motor is locked, and the motor can be avoided from being burnt down when the rotor of the motor is locked.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of motor control, in particular to a motor overcurrent stall protection method, device, electronic governor and unmanned aerial vehicle. Background technique [0002] With the development of unmanned aerial vehicle technology, unmanned aerial vehicles have been widely used in military and civilian fields. An unmanned aerial vehicle usually includes a plurality of blades, and the rotation of the plurality of blades is used to generate upward lift and forward power, and the power for the rotation of the blades is usually provided by a motor connected to the blades. [0003] During the use of the existing UAV, due to the design problem of the UAV itself or improper operation by the user, sometimes the UAV will roll over. If the motor is still rotating when the UAV rolls over, the motor Stalled rotor can easily cause the motor to burn out. Contents of the invention [0004] The purp...

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Problems solved by technology

[0003] During the use of existing unmanned aerial vehicles, due to the design problems of the unmanned aerial vehicle itself or improper operation by the user, sometimes the unmanned aerial vehicle will roll over. If the motor is still rotating when the aircraft rolls over, it will cause the motor to stall, which will easily cause the motor to burn out

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