遵循IEC 61850标准的广域电流差动保护IED

应用多点信息的广域继电保护已经成为当前继电保护领域研究的热点，IEC61850系列标准的颁布使广域继电保护应用于现场成为可能。文中以广域电流差动保护智能电子设备（IED）为例。借鉴IEC61850功能分层结构、统一对象建模和抽象通信服务接口的特点，对其进行了建模，扩展了广域电流差动保护新逻辑节点，实现了各IED之间的互操作性。对广域电流差动保护IED的硬件实现进行了设计，采用插件式的硬件构成，阐述了逻辑设备与硬件插件间的一一映射关系。

Development of Wide Area Current Differential Protection IED Conforming with IEC 61850

Wide area protection using information from multi-location has now become a hot spot in the relay protection domain. The publication of IEC 61850 series standard makes the implementation of wide area protection possible. By taking the wide area current differential protection IED as an example, using the hierarchical function structure, a uniform object model and an abstract communication service interface of IEC 61850 as reference, the modeIing of wide area current differential protection IED is given and the new logic node of the protection is expanded, realizing the interoperability between IEDs. The hardware of wide area current differential protection IED is designed while plug-in hardware module is adopted to constitute IED. The mapping relationship between the logical device and plug-in hardware module is also depicted.