DC servo drive system and method

Abstract

The invention belongs to the technical field of DC servo motors and discloses a DC servo drive system and method. The fixed ferrule of the DC servo drive system is welded to the outer edges on the upper side, the lower side and the left side of a box body. A pulse signal interface end, a direction input interface end and an alarm output interface end are embedded in the right side of the box body.The input end of a DC servo motor is disposed on the upper end of the box body. The output end of the DC servo motor is disposed on the lower end of the box body. A PLC, a DSP, a PWM waveform transmitter, a photoelectric encoder and a resolver are installed in the box body. The DC servo drive system is simple in principle and convenient to use, can accurately control the rotation speed and the rotation direction of the DC servo motor by editing the program of the PLC, has the advantages of fast response speed, no stopping, and absolute rest during stop, and satisfies the working requirementsof various DC servo motors and has good practicability.

Description

technical field [0001] The invention belongs to the technical field of DC servo motors, and in particular relates to a DC servo drive system and a drive method. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] At present, servo drives (servo drives), also known as "servo controllers" and "servo amplifiers", are a kind of controller used to control servo motors. Its function is similar to that of frequency converters on ordinary AC motors. Part of it is mainly used in high-precision positioning systems. Generally, the servo motor is controlled by three methods of position, speed and torque to achieve high-precision positioning of the transmission system. It is currently a high-end product of transmission technology. [0004] Existing servo drives are not fully functional, the control speed of the DC servo motor is not fast enough, the response speed is slow, the positioning is not accurate, and the D...

AI Technical Summary

Problems solved by technology

[0006] Existing servo drives are not fully functional, the control speed of the DC servo motor is not fast enough, the response speed is slow, and the precise positioning is not possible, and the DC servo motor cannot be stopped immediately after the stop command is given, which will cause the rotation inertia The speed control and accuracy of the DC servo motor still need to be further improved.

[0007] In the case that the unknown parameters in the servo system have an influence on the dynamic characteristics of the current loop, the self-tuning of the current loop control parameters cannot be realized

[0008] In the existing DSP digital signal processor filter processing, the phase noise measurement method is to use a special hardware circuit to extract the phase information of the signal source under test, and analyze the SSB phase noise of the signal source under test, so that the phase extraction The extraction performance of the circuit determines the performance of the phase noise measurement to a large extent, and the frequency response of the phase extraction circuit will also affect the measurement results, which limits the drive performance of the DC servo motor.

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