Fault stopping method and device of motor, storage medium and motor

Abstract

The invention discloses a fault stopping method, device, storage medium and a motor. The method comprises the following steps: determining the current fault reason of the motor controller when the motor is running at a set rotational speed; according to the current fault cause, the motor is controlled to stop according to the current stopping mode, so as to realize the safe stopping of the motor under the current fault cause. The scheme of the invention can solve the problem that the IGBT is directly turned off when the controller of the permanent magnet motor needs to be stopped when the controller fails in the high-speed running process, and the problem that the IGBT is broken down and the safety of the stopping is poor, so that the effect of improving the safety of the stopping is achieved.

Description

technical field [0001] The invention belongs to the technical field of motors, and specifically relates to a motor failure shutdown method, device, storage medium and motor, and in particular to a method for stopping a permanent magnet motor when a controller fails at a high rotational speed, a device corresponding to the method, and a motor with The motor of the device, the computer-readable storage medium storing the instructions corresponding to the method, and the motor capable of executing the instructions corresponding to the method. Background technique [0002] Permanent magnet motors use permanent magnets to generate the magnetic field of the motor without excitation coils or excitation current. They have high efficiency and simple structure. They are very good energy-saving motors. With the advent of high-performance permanent magnet materials and the development of control technology, permanent magnet motors Motors are widely used, especially in the new energy veh...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to, aiming at the above-mentioned defects, provide a method, device, storage medium and motor for motor failure shutdown, so as to solve the problem of direct shutdown when the controller of the permanent magnet motor fails during high-speed operation and needs to be shut down in the prior art. If the IGBT is broken, there is a risk of the IGBT being broken down, resulting in poor shutdown safety, so as to improve the shutdown safety.

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