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在分层分布式变电站综合自动化系统中，各模块功能独立，结构分散，因此通信是枢纽。结合BJ系列变电站综合自动化系统，分析了各模块间的通信内容及数据特点，探讨了综合自动化系统中各模块间通信介质、通信速率、通信方式、通信规约以及通信控制机设计等方面的问题，建议应做好通信规约的标准化工作。
In the hierarchical distributed substation integrated automation system, each module has independent functions and decentralized structure, so communication is the hub. Combined with BJ series integrated substation automation system, the content of communication and data characteristics of each module are analyzed. The problems of communication media, communication rate, communication mode, communication protocol and communication controller design are discussed in the integrated automation system. Suggestions should be made to standardize the communication protocol.