作　　者： (吴通华）; (郑玉平）; (周华）; (胡国）; (姚刚）; (周华良）;

机构地区： 河海大学能源与电气学院,江苏省南京市210098 智能电网保护和运行控制国家重点实验室,江苏省南京市211106 国电南瑞科技股份有限公司,江苏省南京市211106 南瑞集团公司国网电力科学研究院,江苏省南京市211106

出　　处： 《电力系统自动化》 2017年第16期46-52,共7页

摘　　要： 针对常规变电站、智能变电站线路保护工程应用中面临的保护速动性、可靠性和运维方面的难题,提出了一种基于SOC芯片实现的功能纵向集成、无防护安装的就地化线路保护系统架构和技术方案。通过一体化设计,纵向集成单间隔合并单元、保护和智能终端功能,减少设备类型及数量,简化配置,减少信号中间传输环节,缩短保护动作时间,并为站域保护等站端设备提供数据采集和控制执行支撑。同时对就地化线路保护的站间同步采样、远方不停电传动、同期电压接入等关键技术进行了研究与分析。对就地化保护的关键性能进行测试实验和比对分析,实验结果验证了所述方案的有效性和先进性。 Aiming at the problems of speed, reliability, operation and maintenance in the actual application of line protection in the conventional and intelligent substation, the system architecture and technical scheme of outdoor installation line protection based on vertical integration and outdoor installation are proposed. The functions of single-bay merging unit, relay protection, intelligent terminal are vertically integrated to reduce installation amounts and varieties, simplify configuration, reduce signal transmission, and shorten the protection action time. Furthermore, this vertically integrated device is applied to provide data acquisition and control execution support to substation-area protection, security and stability device and other substation-area installations. In addition, the key techniques of outdoor installation line protection, such as synchronous sampling between substations, power-on remote control and synchronous voltage input, are researched and analyzed. The vital performances are tested and compared. Finally, the scheme is verified to be feasible and advanced through experimental results.

关 键 词： 就地化保护 线路保护 合并单元 纵向集成 同步采样 不停电传动