变电站中的嵌入式RTU设计

Embedded RTU design of substation

针对传统RTU响应速度慢、通讯速率低、通讯规约不统一、系统成本高等缺点,提出了一种基于ARM的变电站RTU设计方案,使用AD模块完成数据采集,使用快速傅里叶算法进行数据处理,通过CAN总线与监控主站进行通信,完成四遥功能;实验验证了本设计的正确性及有效性。

In view of the shortages of traditional RTU such as slow response, low communication speed, inconsistent protocol and high cost, the authors present a substation RTU design scheme based on ARM, incorporating data acquisition by AD modules, data processing by FFT algorithm, communication with monitoring host by CAN Bus to complete telemetering, remote sensing, remote communication and remote control. Tests had been conducted to veri- fy the accuracy and effectiveness of this design scheme.