摘要
介绍了一种用于电力系统微机保护装置的数据采集系统,该系统采用数字信号处理器(DSP)、复杂可编程逻辑器件(CPLD)以及高精度模数转换芯片MAX125为核心芯片,给出了系统硬件结构的主要电路部分及其原理,并分别介绍了数字信号处理器及模数转换芯片的选择原则及其技术特点。测试结果表明:该系统具有采样速度快、运算结果精度高、可靠性高、可升级等优点。
A data acquisition system used in micro-computer relay protection devices of power system is presented in this peper. The system adopts digital signal processors （DSP）, complex programmed logic devices （CPLD） and high-precision analog to digital chips MAX125 as core chips. The paper presents the main circuits of the hardware structure and their theory,and introduces the selective principle and technical characters of DSP and A/D chips. Test results show that the system has merits of rapid sampling, high precision of operation results, high reliability and upgrading capability.
出处
《江苏电机工程》
2006年第4期40-42,共3页
Jiangsu Electrical Engineering
