Synchronous motor out-of-step detection device and compensation method

Abstract

The invention belongs to the field of motor detection and control, and particularly relates to a synchronous motor out-of-step detection device and a compensation method. The synchronous motor out-of-step detection device comprises a power detection module, a rotating speed detection module, a magnetic field detection module, an excitation detection module, a signal processing unit, a main control unit, a compensation method storage unit, a motor control module and a motor type detection module. The power detection module, the rotating speed detection module, the magnetic field detection module and the excitation detection module are electrically connected with the signal processing unit respectively; the signal processing unit is electrically connected with the main control unit; the main control unit is electrically connected with the motor control module and is also electrically connected with the compensation method storage unit; and the motor type detection module is electrically connected with the main control unit. Through the device, the motor out-of-step reason can be accurately detected, corresponding out-of-step remedial measures are provided, the service life of the motor is prolonged, and the stability and reliability of the whole system are improved.

Description

technical field [0001] The invention belongs to the field of motor detection and control, and in particular relates to a synchronous motor out-of-step detection device and a compensation method. Background technique [0002] With the development of power electronics technology and the development of artificial intelligence technology, synchronous motors have become the actuators that must be involved in various motion mechanisms. Synchronous motors have the characteristics of high efficiency, small size, and low noise. It is widely used in electric vehicles, robots, injection molding machines, textile machinery, aerospace, etc. [0003] During the operation of a synchronous motor, due to a sudden increase in load, or due to the inertia of the rotor, or due to vibration of the motor, when the rotor and stator of the motor are no longer synchronized, the motor will be out of step. The out-of-step of the synchronous motor is divided into power-off out-of-step, excitation out-...

AI Technical Summary

Problems solved by technology

No matter what kind of out-of-step, it will cause damage to the motor or malfunction, causing the entire system to fail

[0004] However, the existing detection devices and methods for detecting synchronous motor out-of-step cannot fully cover the out-of-step in all states, and cannot locate the cause of the out-of-step in time. Even if the out-of-step can be detected, the detection method is backward, and there is no Any compensation measures that affect the use of the motor

The current detection method cannot cover a variety of motors, and can only detect one-to-one, which wastes resources, increases workload and increases research and development costs. At the same time, motor out-of-step increases the damage rate of the motor and increases the failure of the system. Reduced work efficiency

[0005] Therefore, in view of this situation, it is urgent to design and produce a synchronous motor out-of-step detection device and compensation method to solve the problem that the existing technology cannot fully cover the out-of-step in all states, and at the same time, there is no compensation for the motor out-of-step measures, the damage rate of the motor and the failure of the system are high, and the work efficiency is reduced.

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