智能变电站二次虚实链路映射和智能诊断方法的研究

Research of Mapping Between Secondary Virtual and Physical Link and Intelligent Diagnosis Method

智能变电站全站配置文件(substation configuration description,SCD)无法生成面向通用对象的变电站事件(generic object oriented substation event,GOOSE)、采样值(sampled value,SV)等虚链路和实际物理端口之间的映射关系,从而导致当虚回路发生故障时,无法快速定位物理故障点的位置。根据工程实际需求,通过对SCD文件的研究和扩展,提出一种智能变电站二次虚实链路的拓扑映射方法,实现了虚链路与实际物理端口路径之间的映射,并依此设计了智能变电站智能诊断系统,结合物理端口的链路状态反馈,直接定位虚链路故障所对应的物理端口链路故障点。本系统特别适用于"网采网跳"架构的智能变电站,具有很大的工程推广价值。

Because it＇s unable to generate a mapping between virtual link（such as GOOSE,SV） and physical port from SCD file in smart substation,when a fault happens in a virtual circuit,it is unable to locate physical fault position quickly.A mapping method between virtual and physical Link is proposed by extending the SCD file according to practical engineering requirements,achieving the mapping between virtual link and the actual physical port.Thus an intelligent diagnosis system of smart substation is built based on that.Combined with the physical port link state feedback,it can locate the physical port fault directly of a corresponding virtual link fault.The system is applicable to all the network architecture of smart substations.This system is especially suitable for the intelligent substation,which gets sampling and trips from net.It has a great value for engineering application.