【摘要】 介绍了变电站自动化系统中的通讯单元的功能实现和硬软件设计思想。该通讯单元能实现与调度控制中心或就地监控系统的接口功能 ,满足远动要求 ,并对 CDT远动规约作了简要介绍。由于该通讯单元采用双 CPU结构 ,使所有的数据交换并行进行 ,因此系统通信速度快。整个系统具有较高的可靠性和可维护性 ,满足了变电站无人值班的要求。更多还原

【Abstract】 The functions and hardware and software design of a communication module are described for the comprehensively automatic system of transformer substations,and the CDT communication protocols are given.The communication system has rapid data flows attributed to parallel data transmission by using double CPU.The entire system has the characteristics of higher reliability and maintainability,so it meets the requirements of unmanned transformer substations.更多还原