LabVEWI在步进电动机控制系统仿真研究中的应用  

Application of LabVIEW in the Simulation of the Step Motor Control System

作　　者：吴涛[1] 赵文豪[1] 李子灿 

机构地区：[1]昆明理工大学机电工程学院,昆明650500

出　　处：《机电一体化》2017年第4期64-68,共5页Mechatronics

基　　金：国家自然科学基金青年基金支持(No.61203066)

摘　　要：以两相反应式步进电动机结构及其电磁回路特点为基础,分析了步进电动机数学模型,讨论了步进电动机传递函数的建立。该传递函数直接离散化是不能保持原系统输出的变化规律的,因此在输入端加入一个零阶保持器。深入分析了增量式PID控制器的设计,提出了一种应用Lab VIEW软件对步进电动机控制系统进行仿真的方法,并通过数据采集卡PCI-6024E和控制板SC-2075板将输出信号传递给型号为L298N的驱动板来驱动实验用两相反应式步进电动机。仿真和实验结果与理论分析一致,验证了该方法的合理性和有效性,为实际电机控制系统的设计和调试提供了新的思路。Based on the mathematical model of the structure and electronic-magnetic circuit property of the 2-phase reactive step motor, the establishment of step motor transfer function is discussed. This transfer function couldn＇t keep the output change rule of the original system, if it is discretized directly. So, a zero- order holder is added in the input terminal. The controller of incremental PID is analyzed in depth. A new method for modeling and simulation of step motor based on LabVIEW is proposed. The output signal is transferred to the driving card L298N through the data acquisition card PCI- 6024E and control breadboard SC- 2075. The driving card drives the 2-phase reactive step motor. The reasonability and validity are testified by the coincidence of the simulation and experimentation results and theory analysis. This method offers a new thinking for designing and debugging actual motors.

关 键 词：步进电动机 LABVIEW PID 仿真 实验 

分 类 号：TM383.6[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]