基于单片机的RTU三相交流采样技术  

Three-phase AC sampling technique of RTU based on single chip processor

作　　者：刘冰[1] 郝庆水[1] 丛振刚[1] 

机构地区：[1]山东积成电子股份有限公司,山东济南250100

出　　处：《中国电力》2006年第10期88-90,共3页Electric Power

摘　　要：描述一种基于80C51系列单片机实现三相交流采样的典型RTU(远程终端)的基本结构,介绍其采样信号预处理模块的原理,以MAXIUM公司模数转换芯片MAX125为核心构建一个应用电路。通过分析三相交流算法的特点,给出适合单片机实现的时域积分算法和离散傅氏变换算法的表达式,还给出基于C语言算法实现的3个重要模块。The general structure of a typical remote terminal unit （RTU）based on the series of 80C51 single chip processors was described. The principle of the pretreatment module of sampling signals was introduced, and an applicable circuit which was composed of MAXIUM company＇s analog and digital conversion chips, MAX125, was designed. By analyzing the characteristics of the three-phase AC sampling algorithm, the expressions of the time-domain integral algorithm and the discrete Fourier transform algorithm were given, which can be easily implemented by a micro-controller. Three important algorithm modules programmed by the C language were also introduced.

关 键 词：远程终端 三相交流采样 微控制器 

分 类 号：TM933.13[电气工程—电力电子与电力传动]