优秀毕业设计精品]自动纺织机控制系统软件设计及仿真.doc

摘要
随着电力电子技术、微电子技术及控制理论的发展,电气控制系统在工程中得到日益广泛的应用。剑杆织机作为一种适应性最强的无梭织机,其发展方向为电子选纬、电子送经、电子卷取控制技术的研究和应用。
本论文采用DSP2407作为剑杆织机电气控制系统的主控芯片。并对主要组成部分进行了较为系统的阐述,包括送经卷取系统,引纬系统及其电机的驱动控制,故障检测做出具体的分析,同时对剑杆织机的经纱张力做出检测并及时反映给单片机。送经卷取电机采用无刷直流电机来完成,并在微处理器的控制下实现送经卷取的同步运行,保持张力恒定。引纬电机采用三相混合式步进电机。
本文首先对纺织机和其电控部分的总体设计做出概述,然后是设计的主体部分,首先是对三相电的整流,滤波做出设计并进行整流二极管和滤波电容的选择。本文对送经卷取电机和引纬电机都使用双极性PWM控制,选取MOSFET作为桥式逆变的开关器件。送经电机部分选用驱动芯片IR2113来驱动开关器件。同时对电路进行检测,本文对整流输出母线电压和送经电机定子短接电流进行检测经A/D转换将信号传给控制芯片。引纬部分对三相混合式步进电机的驱动和检测做了详细设计。设计中采用“S”型张力传感器对经纱张力进行检测,将检测信号传递给控制芯片进行处理,若张力超过限定值则发出停车信号。再次是软件设计部分对织机控制主程序,张力调节子程序和送经电机启动子程序做出设计。在文章的最后应用MATLAB对PWM逆变和无刷直流电机的控制部分进行仿真。
关键词剑杆织机无刷直流电机三相混合式步进电机驱动
Abstract
With the power electronics, microelectronics and control theory of the development, electrical control system increasingly widely in engineering applications. As a most adaptable rapier in loom, its direction for the electronic weft, electronic let-off, e-coiling control technology research and application.
In this thesis, DSP 2407 as control chip electrical control system of rapier chip. And the ponent of a more systematic exposition, including the delivery by the take-up system, the weft insertion system and its motor drive control, fault detection and make specific analysis, while the tension on the loom to make detection of the warp and promptly reflected to the microcontroller. Sent by the take-up motor with brushless DC motor plete, and under the control of the microprocessor to achieve synchronous operation sent by the take-up, maintain constant tension. Weft chioce three-phase hybrid stepping motor motor.
Firstly, the textile machine and electric control part of its overall design made to make an overview, and then the main part of the design, the first of the three-phase rectifier, the filter was designed and calculated to make the selection of rectifier diodes and filter capacitor selection . In this paper, sent by the take-up motor and weft are using bipolar PWM motor control, select the MOSFET as