煤矿供电系统的保护设计——软件设计

论文编号:JD559 附任务书,实习报告,原理图,论文字数:16750,页数:50

摘  要
本文在对煤矿井下变电所高压供电现状及国内外相关产品概况分析的基础上，研制了一套井下供配电安全监控系统。选用单片机AT89C52用以控制波特率的选择，增强了通信接口的通用性。智能采集器独立于原综合保护装置，由单片机控制，增加电压传感器、电流传感器、数据处理软件等，实时采集高压配电开关所带负载的电压、电流、环境温度、真空开关的开合状态等参数。为了缩短地面计算机依次巡测所有智能采集器的时间，设计了双单片机结构的变电所分站，变电所分站在计算机和智能采集器之间，用一片双口RAM进行数据暂存和缓冲，可以实现双向通信，在整个系统结构中起着承上启下的作用，从而提高系统的整体性能。论文在进行上述硬件设计的同时，还设计了一套计算机多功能软件，主要包括串行通信程序和数据库，以及相关程序的编写，对煤矿生产有着相当重要的意义。
关键词：供配电；AT89C52；传感器

Abstract
This article to the coal mine shaft transformer substation high-voltage power supply present situation and in the domestic and foreign related product survey analysis''s foundation, developed set of mine shafts to supply the power distribution  safe supervisory system. In order to realize computer''s long-distance range monitoring, designed the correspondence connection to complete the signal transformation, monolithic integrated circuit AT89C52 uses to control the baudrate the choice, strengthened the correspondence connection versatility. The intelligent gathering independence in the original synthesis protective device, the electric current sensor, the data processing software and so on, the real-time gathering high pressure power distribution switch brings the load voltage, the electric current, the ambient temperature, the vacuum switch to open and close parameters and so on condition, simultaneously carries out the ground-based computer to send in “switches on '', “minute floodgate”, “replacement” and so on control operations. In order to reduce the ground-based computer to patrol in turn measured that all intelligent gathering time, has designed the double monolithic integrated circuit structure transformer substation substation, the transformer substation substation in the computer and between intelligent gathering, carries on the data interim and the cushion with piece of pair of mouth RAM, may realize the two-way communication, is playing the role which in the overall system structure links the preceding with the following, The paper while carries on the above hardware design, but has designed set of computer multi-purpose softwares, mainly includes the serial communication procedure and the database.
key word: For power distribution ；AT89C52 ；Current

目录
摘  要 I
Abstract II
1  绪论 1
1.1课题的来源及意义 1
1.2 系统总体方案的选择与设计 2
1.2.1系统结构选择 2
1.2.2通信方式选择 3
2 系统的硬件设计 4
2.1 AT89c52简介 4
2.2  微控制器AT89c52及其应用 4
2.3  TLC2543简介 5
2.3.1  TLC2543引脚功能介绍 5
2.3.2  TLC2543的工作时序 6
2.3.3  TLC2543串行AD/转换器程序设计 6
2.4传感器选型 6
2.4.1传感器的选型原则 6
2.4.2电压传感器、电流传感器 7
2.5控制输出电路 8
2.6矩阵键盘输入模块 9
2.6.1键盘输入的作用 9
2.6.2 键盘工作原理 9
2.6.3 按键的识别方法 9
2.6.4 键盘的工作方式 10
3 系统软件设计 11
3.1程序流程图 11
3.2 相关器件流程图及其编程 15
3.3 程序判断滤波 33
3.4 几种滤波方法的比较 34
3.5 冗余指令 35
3.6 陷阱技术 35
3.7抗干扰措施 35
结论 37
致谢 37
参考文献 38
翻译 40