贵州电网数字化变电站继电保护的探讨  

Discussion on relaying protection of digital substation in Guizhou Power Grid digital substation relaying protection

作　　者：熊学海[1] 王宇恩[1] 高昌培 王永刚[1] 

机构地区：[1]贵州电网公司电力调度控制中心,贵州贵阳550000

出　　处：《贵州电力技术》2015年第9期33-36,44,共5页Guizhou Electric Power Technology

摘　　要：在目前技术条件下,因时延可测交换机网采方案还有待实践检验,实际工程中宜使用点对点采样插值同步方案,母线电压合并单元级联到间隔电流合并单元的方法对于提高保护性能有重要作用。还分析对比了两种试验加量方法的优缺点及探讨各自的适用性,而且给备用母线电压合并单元加量的方法在贵州电网某110 kV数字化变电站已成功应用于完成了保护整组试验。Under the condition of current technology, because the scheme of time delay measurable switches web mining has yet to be practical, the point to point sampling interpolation synchronization scheme was used in practical engineering, bus voltage merging unit cascaded to the current merger played an important role in improving the protection performance. Also analyzed the advantages and disadvantages of two methods of test and quantity and discussed their applicability, and the method of added amount to standby bus voltages combination unit has been successfully applied to protect the whole unit test in Guizhou Power grid 110 kV igital substation.

关 键 词：数字化变电站 继电保护 数据同步采样 可靠性 

分 类 号：TM77[电气工程—电力系统及自动化]