智能变电站二次设备集成方案讨论

摘要

With the ever-increasing application of secondary equipment,the integration of secondary devices will be the trend of smart substation.Different schemes for the devices of the process level,bay level and station level are discussed,with emphasis on the integration of the merging unit (MU) and intelligent terminal in the process level.The integration of the protective,measuring and control devices,the concentrated protective devices,the integration of measuring and control devices,the multifunction measuring and control devices,the intelligent components,the integration of the fault recorder and network analyzer are elaborated.The integration supervision and control system at the station level is described.The current application of the different integrated devices in the smart substation is reported,the scheme for the integration of the merging unit and intelligent terminal,the integration of the protective and measuring control devices are recommended for trial application only on the premise that the voltage is 110 kV and below.It will be useful to the construction of smart substations.%随着智能变电站二次设备应用的日趋成熟，将现有二次设备按照需求进行集成整合将是今后智能变电站的发展趋势。对智能变电站过程层、间隔层和站控层设备的集成方案进行了讨论，重点针对过程层合并单元和智能终端集成方案进行了分析；对间隔层保护装置、集中式测控装置、多功能测控装置、智能组件、故障录波和网络分析仪集成等方案进行了详细论述；对站控层一体化监控系统的集成进行了讨论。结合当前工程实际应用情况，提出在110 kV 及以下电压等级智能变电站试点应用合并单元智能终端集成装置、保护测控集成装置较为可行，为今后智能变电站的发展建设提供参考。