步进电机运动控制系统外文文献翻译中英文

步进电机运动控制系统外文文献翻译中英文外文文献翻译

(含:英文原文及中文译文)

文献出处:YH Lee. Stepper motor motion control system design [J]. Equipment Manufacturing Technology, 2015，2(6):31-41.

英文原文

Stepper motor motion control system design

YH Lee

Abstract

Stepper motors are open-loop control elements that convert

electrical pulse signals to angular or linear displacements. In the case of non-overload, the rotation speed and stop position of the motor depend only on the frequency and pulse number of the pulse signal, and is not affected by the load change, that is, a pulse signal is applied to the motor, and the motor rotates through a step angle. The existence of this linear relationship, coupled with the fact that the stepper motor has only periodic errors and no cumulative errors, is a feature. It is very simple to use a stepper motor to control the speed and position. Stepper motor speed control is generally to change the frequency of the input stepper motor pulse to achieve stepper motor speed control, because the stepper motor for each pulse to rotate a

fixed angle, so that you can control the stepper motor The time interval

from one pulse to the next pulse changes the frequency of the pulse. The length of the delay controls the step angle

specifically to change the rotation speed of the motor, thereby realizing the stepping motor speed control. In this design scheme, the internal timer of the AT89C51 microcontroller is used to change the frequency of the CP pulse to realize the control of the rotation speed

of the stepper motor to realize the functions of the motor speed adjustment and forward and reverse rotation. The design takes into consideration that the CPU may be disturbed when executing instructions, causing the program to "run away" or enter the "endless loop". Therefore, the watchdog circuit is designed using a microprocessing system monitoring integrated chip manufactured by MAXIM. MAXI813. This article also gives the related hardware block diagram and software flow chart in detail, and has compiled the assembly language program.

Keywords: stepper motor single chip microcomputer speed control system

Introduction

Stepper motors were first developed by the British in 1920. The invention of the transistor in the late 1950s was also gradually applied to a stepping motor, which made it easier to control the digitization. After continuous improvement, today's stepper motors have been widely used in mechanical systems with high controllability such as high positioning accuracy, high decomposition performance, high