CAJ | 학술논문

现有智能变电站继电保护大多数采用“直采直跳”的模式，但存在装置光口和光缆敷设过多、配置复杂、维护困难等不足。分析了通用面向对象变电站事件(GOOSE)报文传输延时，结果表明网络传输延时占比较小，与网跳相比，直跳并没有优势。分析了 GOOSE 网跳安全性，提出间隔交换机或检修虚拟局域网(VLAN)可以提高检修扩建情况下的安全性。针对二次设备提出了网跳关键技术及验证测试方案，提出了继电保护应用网络跳闸的网络方案和约束条件。
현유지능변전참계전보호대다수채용“직채직도”적모식，단존재장치광구화광람부설과다、배치복잡、유호곤난등불족。분석료통용면향대상변전참사건(GOOSE)보문전수연시，결과표명망락전수연시점비교소，여망도상비，직도병몰유우세。분석료 GOOSE 망도안전성，제출간격교환궤혹검수허의국역망(VLAN)가이제고검수확건정황하적안전성。침대이차설비제출료망도관건기술급험증측시방안，제출료계전보호응용망락도갑적망락방안화약속조건。
Most of current smart substation relay protection systems adopt the“direct sampling & direct trip"mode,with such inadequacies as too many device light ports and fiber optical cables,configuration complexity,maintenance difficulty,etc.It is proved by an analysis of generic object oriented substation event (GOOSE) message transmission latency that network transmission delay is small.Compared with network trip,direct trip has no advantage.The security of GOOSE network trip is analyzed,the result showing that the bay switch and maintenance virtual local area network (VLAN) can enhance the safety during maintenance.The network trip key technology and verification test plan are put forward for secondary equipment,as are network schemes and constraint conditions of network trip for relay protection.