| 基于ATmega128单片机的智能供电测控系统设计 |
| |
| 引用本文： | 张桂香,姚存治.基于ATmega128单片机的智能供电测控系统设计[J].电力自动化设备,2009,29(8). |
| |
| 作者姓名： | 张桂香 姚存治 |
| |
| 作者单位： | 郑州铁路职业技术学院,电气工程系,河南,郑州,450052 |
| |
| 摘 要： | 为监视供电系统一次设备的运行状态和计量一次设备的电气参数,设计了智能供电测控系统.系统采用AVR单片机ATmega128为主控制器,通过其内置A/D转换器进行模数转换及数据处理,选用TVA1421立式穿芯小型精密电压、电流通用互感器,实现供电系统一次侧电压、电流的测量,采用相应的算法编程运算得到一次系统的电压、电流、功率等参数.在开关量输入、输出电路中使用了光电隔离器件将单片机和外部设备隔离开.利用ATmega128单片机的强大的中断功能实现测控系统对某些紧急情况的实时处理.单片机串行口通过RS-422转换器连接RS-422网络,实现与上位机的通信.系统软件采用C语言编程,对实时性要求较高的部分采用汇编语言.以提高运行速度.实验证明:该系统采集速率高.抗干扰能力强.数据传输快速可靠.简单易操作.
|
| 关 键 词： | 单片机 中断 电压互感器 电流互感器 模数转换 光电隔离器 |
Design of intelligent measuring and control system based on ATmega128 |
| |
| ZHANG Guixiang,YAO Cunzhi.Design of intelligent measuring and control system based on ATmega128[J].Electric Power Automation Equipment,2009,29(8). |
| |
| Authors: | ZHANG Guixiang YAO Cunzhi |
| |
| Affiliation: | Department of Electrical Engineering;Zhengzhou Railway Vocational & Technical College;Zhengzhou 450052;China |
| |
| Abstract: | An intelligent measuring and control system is designed to monitor the operating states and measure the electrical parameters of power-supply system's primary equipments.It adopts AVR ATmega128 as the main controller,carrying out A/D conversion by its built-in A /D converter and data processing.The TVA1421 universal transformer is used for measuring the primary voltage and current of power-supply system and the primary electrical parameters are calculated by program.The optoelectronic isolator is set in bin... |
| |
| Keywords: | SCM interruption PT CT A/D conversion optoelectronic isolator |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《电力自动化设备》浏览原始摘要信息 |
|
点击此处可从《电力自动化设备》下载全文 |
