基于单片机农村变电所交流采样的研究

SCM based AC sampling of rural substation

在设计合理的采样通道基础上,通过选用高速度,高性能的A/D转换器来达到提高交流采样速度和精度的目的。在硬件上设计了直流电源,信号调理电路以及微机接口电路;在软件上应用8098的汇编语言和C语言编制了数据采集和数据处理程序以及验证算法的精度的仿真程序和系统与前置机间的通讯程序。本系统在硬件上电路设计简单可靠;在软件上程序设计具有模块化结构。通过模拟实验,验证了本系统具有速度快,精度高,安全可靠的特点,在农村变电所中具有广阔的应用前景。

In this paper,designed on the basis of the sampling channel,through the selection of high-speed,high-performance A/D converters to achieve improved communication speed and the precision of sampling.In the hardware design of the DC power supply,signal conditioning circuitry and computer interface circuits;In the software applications in the 8098 assembly language and C language compiled data acquisition and data processing procedures and verify the accuracy of the simulation algorithm procedures and systems and procedures for communication between front-end.The system is simple and reliable circuit design,hardware;the software has a modular structure programming.Through simulation experiments,to justify the high speed,high precision,safe and reliable,in the rural substation has broad application prospects.