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针对变电站系统间隔层装置多、大量的智能单元装置需要通过网络相互通信的现状,设计了基于CAN总线的变电站综合自动化系统,详细阐述了系统各部分功能及硬件设计,并采用组态软件InTouch进行监控界面的设计.实际应用表明:该系统能够实时监视变电站的运行状况,准确地控制变电站的运行,同时能及时发现故障并进行快速的处理等,实现了变电站的综合自动化.“,”Aimed at the actuality of more intelligent device to bay level in the substation system, and communication by network among intelligent unit were needed,an integrated substation automation system was designed based on CAN fieldbus. All parts of functions and hardware design of the system were illustrated in detail. InTouch configuration software was used to the design of monitoring interface. The actual application shows that the system can monitor the real-time running states of the transformer substation, control the transformer substation running accurately,find out and deal with the fault timely,and realize the automation of the integrated transformer substation.