学士学位论文--基于步进电机、plc、触摸屏的水轮机调速器的电控设计.doc

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1、南昌工程学院毕业设计（论文）任务书一、毕业设计(论文)题目：基于步进电机、PLC、触摸屏的水轮机调速器的电控设计二、毕业设计(论文)使用的原始资料(数据)及设计技术要求：步进控制型可编程水轮机调速器的电气部分是以可编程控制器PLC为硬件核心，软件采用全模块化结幕显示，具有良好的全中文图形人机界面；电气－机械转换部件采用步进电机，配以滚珠螺旋自动复中装置连式结构，以步进驱动装置的机械位移直接控制主配压阀。PLC测量水轮发电机组的频率信号偏差，并按一定的（PID或PI）转换成位置控制的数字电信号；电气－机械转换部件将该数字信号线性地转化为机械位移量，再直接控制由器和主配压阀组成的二级液压放大，通

2、过主接力器控制水轮机导水叶开度（或浆叶转角），实现水轮发电机组的调速和复合控制。1、步进驱动装置：（1）步进电机；惯量小，转矩大，控制精度高，运行可靠。（2）步进驱动器；功能强大、控制方式灵活，本身带有CPU和人机界面，可以对其控制方式、工作参数进行设定，以达最优控制。2、自动复中装置：调节过程中，当交、直流电源同时出现故障时，可使主配压阀及时复中，使调速器保持稳定，确保机组安全运行。3、人机接口：采用彩色液晶触摸屏实时显示机组当前运行工况、机组频率、导叶开度、机组功率、水头值和故障信息等各种运行参数和工况。4、参数界面：直接通过触摸屏进行人机对话，允许通过菜单实时修改运行参数，显示直观，操

3、作方便，具有良好的全中文图形人机界面。三、毕业设计(论文)工作内容及完成时间：1、查找相关文献，进行方案论证。3.25---4.42、硬件选型。4.5---4.153、设计电气图，包括控制柜图，布置图，接线图等。4.16---4.224、控制柜内接线及初步测试开关点。4.23---4.305、程序设计及调试。5.1---5.177、理设计材料，编写毕业设计论文。5.18---5.25目录第一章典型微机调速器简介·······························（1）1.1典型微机调速器的介绍·····································（1）第二章系统

4、结构········································（5）2.1系统结构框图············································（5）2.2框图说明················································（5）2.3系统工作原理············································（6）第三章系统配置········································（9）-2-3.1电气系统配置······················

5、······················（9）3.1.1硬件配置··············································（9）3.1.2软件基本配置·········································(10)3.1.3功能增强软件配置·····································(10)3.1.4调试设备及软件（不属于调速器设备内）···················(10)3.1.5试验设备（不属于调速器设备内）·························(10)3.2机械系统配置··

6、··········································(10)第四章主要技术数据及性能指标··························(11)4.1主要技术数据············································(11)4.2主要性能指标············································(12)-2-第五章硬件构成········································(13)5.1PLC简介·································

7、··············(13)5.2操作终端···············································（13）5.3步进电机驱动模块·········································（14）5.4步进电机················································（18）-2-5.5测频模块·····