The new technologies for the true unattended operation of 500 kV smart substation are expounded,including intelligent primary equipment,networked secondary equipment,IEC61850-based standard substation automation system with advanced applications,online equipment monitoring & conditional maintenance system,remote video monitoring system,intelligent AC/DC power supply system,intelligent inspection system,etc. The technical enhancement of equipment and the systematic optimization of management are the main points in the implementation of true unattended operation. The operational management mode of 500kV smart unattended substations is put forward:the irregular maintenance patrol of control center plus the intelligent inspection system of substation.%阐述了500 kV智能变电站采用的智能化一次设备、网络化二次设备、基于IEC61850标准变电站自动化系统及高级应用功能、全站设备在线监测及状态检修系统、远程图像监控系统、智能交直流一体化电源系统以及智能巡检系统等实现真正意义上无人值班模式的智能变电站新技术.设备技术条件的完善和管理体制的优化是实现无人值班模式的研究要点,提出了500kV智能变电站实现无人值班的运行管理模式,即集控中心的不定期巡视维护+变电站智能巡检系统.
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