220kV单母线双断路器分段主接线方式研究与应用  

Research and application of 220kV main connection mode of two section single bus with tow circuit breaker

作　　者：高亚栋[1,2] 高美金[1,2] 陈飞[1,2] 楼秉吾 金国胜[1,2] GAO Ya-dong GAO Mei-jin CHEN Fei LOU Bing-wu JIN Guo-sheng(State Grid Zhejiang Economic Research Institute, Hangzhou 310008, China Zhejiang Electric Power Economic Research Institute, Hangzhou 310014, China)

机构地区：[1]国网浙江省电力公司经济技术研究院,浙江杭州310008 [2]浙江浙电经济技术研究院有限公司,浙江杭州310014

出　　处：《机电工程》2016年第10期1242-1247,共6页Journal of Mechanical & Electrical Engineering

摘　　要：针对双母线接线在低维护、高可靠性母线设备(GIS、DCB及GIL)应用时的适应性问题,对主变规模为3台的220 k V变电站,创新提出一种单母线双断路器分段的新型电气接线方式,使任何一段母线停电均能确保两台主变正常运行。并从可靠性、灵活性、经济性3个方面出发,运用故障模式和后果分析法(FMEA),将单母线双断路器分段接线与双母线接线方式进行了全方面的比较和阐述。研究结果表明,单母线双断路器分断接线方式在提升可靠性的同时,还能降低投资成本,同时兼顾日常运行和远期扩建等方面的灵活性,具有较大推广和工程应用的价值。Aiming at the adaptability of double-bus with the application of low maintenance and high reliability bus（ GIS,DCB and GIL bus）,a new main electric connection scheme for a two section single bus with tow circuit breakers was proposed for the designed capacity of three main transformers in a 220 k V substation. Two main transformers were able to be maintained in operation with this mode,in case a power outage occurs on either bus. The connection mode of two section single bus with tow circuit breakers and the one of double bus were compared and analyzed by using the failure mode and effects analysis（ FMEA） method,in the three aspects of reliability,flexibility and economical efficiency. The results indicate that the connection mode of two section single bus with tow circuit breakers has great value in engineering applications,which can increase the reliability and reduce the cost of investment. The flexibility required for daily operation and future expansion can be taken into account at the same time.

关 键 词：单母线双断路器分段接线 可靠性 灵活性 经济性 

分 类 号：TM631[电气工程—电力系统及自动化]