Drive control method and system for high torque permanent magnet AC servo motor

Abstract

The invention provides a drive control method and system for a high-torque permanent magnet AC servo motor. During the operation of the AC servo motor, the current of the coil winding of the motor and the working voltage of the motor are collected by mutual inductance, so as to determine the real-time driving force and judgment of the motor output. Whether the motor is currently in an overloaded lifting state, thereby controlling the on-off state of the motor; in addition, when the object in the motor is currently in an unbalanced center of gravity, the lifting speed of the object can be adaptively reduced, which can reduce the output drive of the motor. The magnitude of the force ensures that the object can be lifted smoothly, thereby effectively avoiding the object from swinging greatly during the lifting process, improving the stability of the lifting motion of the object, and maximizing the normal and continuous output of the driving force by the motor.

Description

technical field [0001] The invention relates to the technical field of motor drive control, in particular to a drive control method and system for a high-torque permanent magnet AC servo motor. Background technique [0002] High-torque permanent magnet AC servo motor refers to a permanent magnet-coil winding servo motor that is driven by alternating current and can output large torque. It can adjust the torque output by the motor by changing the driving voltage applied to the motor, thereby greatly controlling the load. drive. High-torque permanent magnet AC servo motors are widely used in heavy machines such as cranes and excavators for lifting and transporting heavy objects. However, in the process of lifting and transporting objects with high-torque permanent magnet AC servo motors, there may be situations where the weight of the objects is too large and the objects cannot be lifted and transported smoothly, resulting in the motor being in an overloaded working state and...

AI Technical Summary

Problems solved by technology

However, in the process of lifting and transporting objects with high-torque permanent magnet AC servo motors, there may be situations where the weight of the objects is too large and the objects cannot be lifted and transported smoothly, resulting in the motor being in an overloaded working state and It is impossible to guarantee the stable movement of the object during the lifting process, which is prone to the danger of the object falling or the motor rolling over and seriously affecting the normal operation of the motor

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