Control method and system for motor's tension force curling zero servo application

Abstract

The invention relates to a control method and system for motor's tension force curling zero servo application. According to the invention, through the acquisition of a given torque before a driver is put into a zero servo and making the torque of the driver the constant given torque, the tension force can be kept unchanged; after the driver is put into the zero servo, the tension force can be steadily changed through the control of the motor to output constant torque. Technically, following the acquisition of the feedback excitation current and the feedback torque current of the motor, the no-load current and the core saturation coefficient as well as the given excitation current of the motor are further obtained so as to acquire the deviation voltage of the M-axis, and at the same time, the deviation signal between the adjustment frequency and feedback frequency undergoes PI adjustment for the given torque current. The deviation signal between the given torque current and the feedback torque current undergoes PI adjustment for the deviation voltage of the T-axis. The deviation voltage of the M-axis and the deviation voltage of the T-axis experience a series of changes, and then a driving signal is obtained and exerted onto the motor. Therefore, a zero servo motor is controlled.

Description

technical field [0001] The invention relates to motor control, in particular to a motor control method and system for zero-servo application of tension crimping. Background technique [0002] In the tension crimping industry, constant tension is generally required during system shutdowns. Especially for some high-demand crimping equipment, such as gravure printing machines, high-speed slitting machines, etc., in order to avoid stretching and deformation of the material when the system stops, the crimping link and traction link of the system are required to maintain a certain tension, lock the reel, and prevent the material from being stretched. drooping. At the same time, it is also required that during the locking process of the reel, there is enough external force to make the reel rotate, and when the external force is removed, the reel can return to its original position. Actually this function is zero servo function. [0003] At present, in the tension crimping indust...

AI Technical Summary

Problems solved by technology

For industries that require zero servo, it cannot meet customer needs

However, those with the above functions are expensive, limited in power, matched with servo drives and servo motors, and have poor compatibility.

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