新型换流变压器断线故障计算  

New Converter Transformer's Broken-line Faults Calculation

作　　者：邓木生[1] 

机构地区：[1]湖南铁道职业技术学院轨道交通系,株洲412001

出　　处：《电力系统及其自动化学报》2011年第4期100-105,共6页Proceedings of the CSU-EPSA

摘　　要：新型换流变压器断线故障计算是其配套继电保护与自动装置设计的基础。基于新型换流变压器正常数学模型和稀疏列表法建立网络方程的原理,结合新型换流变压器的有向图,根据新型换流变压器断线故障的类型,通过修改相应故障支路对原网络方程贡献的方法来计算新型换流变压器各种断线故障。实际算例验证了本文设计的新型换流变压器断线故障计算方法的正确性,该算法对于解决各种复杂多绕组变压器断线故障计算问题具有普遍意义。roken line faults calculation is the bases of relay protection and design of automatic device in the new converter transformer. Based on the normal mathematicla model of the new converter transformer and the principle of sparse tableau method, and combined with its oriented graph, a broken-line faults calculation method of the new converter transformer was proposed. According to the kind of broken--line fault, it correlates contribution of faulty branches to calculate all kinds of broken--line faults in the new converter transformer. Calculation results validate the correctness of the proposed method, which has universal significance in solving kinds of the complicated transformer＇s broken--line faults calculation problems.

关 键 词：换流变压器 网络方程 稀疏列表法 断线故障 有向图 

分 类 号：TM714[电气工程—电力系统及自动化]