保护整定计算中助增系数和分支系数的优化选择  

Optimizing of Sideline Current Addition Coefficient and Branch Coefficient in Protection Relay Setting

作　　者：刘东英 文玉玲[2] 

机构地区：[1]新疆巴州电力公司,新疆库尔勒841000 [2]新疆大学电气工程学院,新疆乌鲁木齐830008

出　　处：《陕西电力》2008年第6期44-47,共4页Shanxi Electric Power

摘　　要：为了提高继电保护整定计算的准确性和效率,对线路继电保护整定计算中的助增系数和分支系数进行优化选择。影响线路距离保护助增系数和零序保护分支系数计算的主要因素有故障点、故障类型和运行方式。针对不同的接线形式,对其运行方式、故障点的选取进行分析,得出最优的助增系数和分支系数。通过对助增系数和分支系数的优化选择,减少了继电保护整定计算的盲目性,增加了继电保护整定计算的准确性。To improve the accuracy and efficiency of relay protection setting calculation of power system, the paper puts forward the optimal selection of relay protection setting calculation. Different elements influencing calculation of line branch coefficient and sideline current addition coefficient are fault points ,fault types and operating modes. This paper gives different selection for fault styles and operating modes of different wiring styles, and gets optimal branch coefficient and sideline current addition coefficient. These are helpful to decrease work load and aimless calculation, and enhance the accuracy of setting calculation of relay protection.

关 键 词：继电保护 整定计算 助增系数 分支系数 优化 

分 类 号：TM771[电气工程—电力系统及自动化]