智能输电线路状态监测代理的研究与设计

Research and Design of Transmission Line Condition Monitoring Agent

针对现有的输电线路在线监测装置没有统一的数据传输协议和存储方式,设计了一套输电线路状态监测代理装置,用于代替原有监测装置和主站系统进行通讯。提出一种基于S3C2440处理器及嵌入式Linux的设计方案,对状态监测代理与各种在线监测装置的I1通信接口和状态监测代理与后台的I2通信接口进行了具体设计,并对状态监测代理的低功耗实现进行了详细说明,同时统一了各种监测装置的数据传输格式。经过电磁兼容试验证明系统在强电磁环境下能够准确无误地传输数据。目前,本系统已经在青藏交直流联网工程运行,系统运行情况良好,能够有效指导高压输电线路运行维护管理。

Because of the problem that there is not a unified transport protocol and data storage for the existing transmission line on-line monitoring devices, a kind of on-line monitoring device named condition monitoring agent（CMA） was designed to replace the old on-line monitoring devices to communicate with master system. A design based on the combination of S3C2440 and Linux was put forward. The communication interface named I1 which is used for data transmission between CMA and monitoring equipment, as well as the communication interface named I2 which is used for data transmission between CMA and master system were designed. The technology of low power was realized in CMA. In the same time, the transport protocol was unified. That the EMC has been completed proves that CMA can work normally in the electromagnetic field environment. This system has been in operation in the interconnection project from Qinghai to Tibet. CMA runs in good condition, it can effectively guide the high-voltage transmission line operation and maintenance management.