智能配电自动化远方终端数据采集系统设计  

Design of the Remote Terminal Data Acquisition System for the Intelligent Distribution Automation

作　　者：戚尔江 彭道刚 关欣蕾 赵斌斌 QI Erjiang;PENG Daogang;GUAN Xinlei;ZHAO Binbin(College of Automation Engineering,Shanghai University of Electric Power,Shanghai 200090,China;Shanghai R ＆ D Center,Siyuan Electric Limited by Share Ltd.,Shanghai 201108,China)

机构地区：[1]上海电力学院自动化工程学院,上海200090 [2]思源电气股份有限公司研发中心,上海201108

出　　处：《电气传动》2018年第7期60-65,共6页Electric Drive

基　　金：上海市"科技创新行动计划"社会发展领域项目(16DZ1202500);上海市科学技术委员会工程技术研究中心项目资助(14DZ2251100)

摘　　要：配电自动化远方终端设备数据采集系统在配电网监控方面起到决定性作用。针对传统数据采集系统设计复杂度高、精度低等不足,采用在ARM控制器外扩16位高精度A/D采样芯片,配合测频电路设计出实时调节采样频率的新型数据采集系统架构。对数据进行软件滤波,并采用快速傅里叶变换提高实时性。采用信号发生器和高精度开关电源作为信号输入,分别进行了频率测试、电压精度测试和快速傅立叶变换实验。实验结果表明,简化后的终端数据采集系统具有较高精度和稳定性。Distribution automation remote terminal equipment data acquisition system plays an important role in the distribution network monitoring. Aiming at the traditional high complexity and low precision data acquisition system,a new data acquisition system was designed with ARM controller in expanding 16 bit high precision A/D sampling chip and frequency measurement circuit,equipped with a real-time frequency measuring circuit. The data was filtered by the software and fast Fourier transform was used to improve the real-time performance. The signal generator and high precision switching power supply were used as the signal input. The frequency test,voltage accuracy test and fast Fourier transform experiment were carried out. The experimental results show that the simplified terminal data acquisition system has higher accuracy and stability.

关 键 词：配电自动化远方终端 STM32控制器 嵌入式 数据采集 快速傅立叶变换 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]