浙江电力
浙江電力
절강전력
ZHEJIANG ELECTRIC POWER
2015年
5期
6-9,13
,共5页
智能变电站%站域保护%方案%信息矩阵
智能變電站%站域保護%方案%信息矩陣
지능변전참%참역보호%방안%신식구진
intelligent substation%substation area protection%scheme%information matrix
传统继电保护仅利用本单元的电气量及有限的状态量完成故障判断，不能反映电网的整体运行状况，相互之间缺乏协调配合，为此提出了站域保护的基本概念。研究了适用于智能变电站的站域保护逻辑结构，站域保护系统通过交换机和以太网实现了变电站内智能设备间信息的共享和互操作，系统釆用集中式的处理结构，利用多信息进行故障定位。结合典型的500 kV变电站接线，分析了按电压等级构建的站域保护配置方案。基于智能变电站信息共享的站域保护信息量完整，改善了传统继电保护的不足，能提升继电保护性能和系统安全稳定运行能力。
傳統繼電保護僅利用本單元的電氣量及有限的狀態量完成故障判斷，不能反映電網的整體運行狀況，相互之間缺乏協調配閤，為此提齣瞭站域保護的基本概唸。研究瞭適用于智能變電站的站域保護邏輯結構，站域保護繫統通過交換機和以太網實現瞭變電站內智能設備間信息的共享和互操作，繫統釆用集中式的處理結構，利用多信息進行故障定位。結閤典型的500 kV變電站接線，分析瞭按電壓等級構建的站域保護配置方案。基于智能變電站信息共享的站域保護信息量完整，改善瞭傳統繼電保護的不足，能提升繼電保護性能和繫統安全穩定運行能力。
전통계전보호부이용본단원적전기량급유한적상태량완성고장판단，불능반영전망적정체운행상황，상호지간결핍협조배합，위차제출료참역보호적기본개념。연구료괄용우지능변전참적참역보호라집결구，참역보호계통통과교환궤화이태망실현료변전참내지능설비간신식적공향화호조작，계통변용집중식적처리결구，이용다신식진행고장정위。결합전형적500 kV변전참접선，분석료안전압등급구건적참역보호배치방안。기우지능변전참신식공향적참역보호신식량완정，개선료전통계전보호적불족，능제승계전보호성능화계통안전은정운행능력。
For conventional relay protection, the electrical quantity and limited quantity of state are used for fault diagnosis. The two kinds of quantity are not enough to reflect the overall operation of power grid and lack coordination and cooperation. Therefore, the paper proposes a basic concept of substation area protection and investigates substation area protection logic structure applicable to intelligent substations. The substation area protection system enables information among intelligent devices in substation to share and interoperate via ex-changer and Ethernet; it uses a structure of centralized processing and employs multiple information for fault location. Combining typical 500 kV substation wiring, the paper analyzes substation area protection configura-tion scheme established in line with voltage class. The substation area protection based on information sharing of intelligent substation, owning complete information quantity and improving disadvantages of conventional relay protection, can enhance relay protection performance and operation safety and stability.
