Device and method for drive control of servo direct current motor

Abstract

The invention discloses a device for drive control of a servo direct current motor. The device comprises a digital signal processing (DSP) module, a full-bridge driving module, a current sensor module, a power module, a communication module and an optical coding signal processing circuit, wherein the power module provides electric energy for the DSP module, the current sensor module and the full-bridge driving module; the DSP module sends out pulse width modulation signals through pulse width modulation technology, and the signals are amplified to nominal voltage of the direct current motor through the full-bridge driving module to control the direct current motor; the current sensor module is in serial connection between the full-bridge driving module and the direct current motor, and is used for reading the current value of the direct current motor and transmitting the current value to the DSP module; and the communication module is connected with the DSP module and is used for communication of the direct current motor with other equipment. The servo direct current motor drive control device is good in control performance, and high in precision, and enables operation of the direct current motor to have high stability and robustness.

Description

technical field [0001] The invention belongs to the technical field of DC motor driver control, and mainly relates to a servo DC motor drive control device and method. Background technique [0002] With the continuous deepening of the modernization process, automation equipment is widely used in daily life. As the main power source, DC motors are widely used in various small automatic control systems, such as intelligent robots, automatic rolling doors, electric vehicles, etc. There are many traditional DC motor speed regulation methods, such as voltage regulation and field weakening speed regulation, etc. They have the disadvantages of slow speed regulation response, poor precision, and complicated speed regulation devices. With the development of fully controlled power electronic device technology, the DC pulse width modulation (PWM) speed control system using high-power transistors as switching devices has become the main development direction of the DC speed control sys...

AI Technical Summary

Problems solved by technology

It can be seen that the original DC motor drive control PID parameter tuning method has poor control performance and cannot meet the high precision requirements of the current servo drive.

Images