A synchronous motor out-of-step compensation method

Abstract

The invention belongs to the field of motor detection and control, in particular to a synchronous motor out-of-step compensation method. The synchronous motor out-of-step detection device includes: a power detection module, a rotational 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; a power detection module, The rotational speed detection module, the magnetic field detection module, and the excitation detection module are respectively electrically connected with the signal processing unit; 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 electrically connected with the compensation method storage unit at the same time Connection; the motor type detection module is electrically connected with the main control unit. The device can accurately detect the cause of the out-of-step of the motor, and propose corresponding remedial measures for out-of-step, which increases the service life of the motor and improves the stability and reliability of the entire system.

Description

technical field [0001] The invention belongs to the field of motor detection and control, in particular to a synchronous motor out-of-step 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 all motion mechanisms must participate in. 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, when the load suddenly increases, or due to the inertia of the rotor, or due to the vibration of the motor, the rotor and the stator of the motor are no longer synchronized, which will cause the motor to lose step. Synchronous motor out-of-step is divided into power-off out-of-step, excitation out-of-step, out-of-excitation out-of-step...

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 compensation method to solve the problem of out-of-step in the existing technology that cannot cover all states in an all-round way. The damage rate and system failure are high, and the work efficiency is reduced.

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