摘要
与传统的换流变压器相比,新型换流变压器具有独特的绕组接线方式,提出了一种采用残量变换法对新型换流变压器短路故障进行计算的方法。在研究新型换流变压器特殊的接线方案和残量变换法原理的基础上,采用多态相分量法建立了新型换流变压器的三相数学模型,并基于模型采用残量变换法对新型换流变压器的各种节点短路故障进行了分析与计算,实际算例验证了所提新型换流变压器短路故障计算方法的正确性,能用于解决实际工程中变压器的短路故障计算问题。
Compared with the traditional converter transformer,the new-type converter transformer has particular connection scheme,for which the remnant conversion method is proposed to calculate its short-circuit faults. Based on the study of the connection scheme and the principle of remnant conversion method,its three- phase mathematical model is established with polymorphic phase coordinates. The short- circuit faults of various nodes are calculated with remnant conversion method, which approves its correctness.
出处
《电力自动化设备》
EI
CSCD
北大核心
2008年第12期6-10,15,共6页
Electric Power Automation Equipment
基金
湖南省重大科技专项资助项目(06GK1003-1)~~
关键词
换流变压器
短路故障
残量变换法
对称分量
converter transformer
short- circuit fault
remnant conversion method
symmetrical component
