电力系统及其自动化学报2017，Vol.29Issue(8)：15-21,42,8.DOI:10.3969/j.issn.1003-8930.2017.08.003
高压电缆牵引网短路特性分析
Analysis of Short-circuit Characteristics for High-voltage Cable Traction Network
摘要
Abstract
In order to study the short-circuit characteristics of high-voltage cable traction network(CTN)applied to elec-trified railway,five basic branches running under short-circuit operation are established considering the cable's Ferran-ti effect. On this basis,the voltage and current characteristic of branches are analyzed. Branch analysis is adopted in the single-phase short-circuit model of main transformer(MT)secondary winding midpoint grounded system,single-phase short-circuit model of MT winding midpoint ungrounded system and two-phase short-circuit model of MT winding midpoint ungrounded system. Simulations are conducted in Matlab/Simulink platform to validate the analysis results. It is shown that branch analysis is effective in analyzing the short-circuit characteristics of high-voltage CTN,and the grounded type of MT winding midpoint will affect the insulation voltage level of cables.关键词
高压电缆牵引网/短路特性/支路分析法/弗兰梯效应/电气化铁路Key words
high-voltage cable traction network/short-circuit characteristics/branch analysis/Ferranti effect/electri⁃fied railway分类
交通工程引用本文复制引用
郭鑫鑫,解绍锋,易东,宋静文..高压电缆牵引网短路特性分析[J].电力系统及其自动化学报,2017,29(8):15-21,42,8.基金项目
国家自然科学基金资助项目(U1134205,51307143) （U1134205,51307143）
中国铁路总公司重点资助科技项目(2015J005-A) （2015J005-A）
朔黄铁路公司资助科技项目(2012-607) （2012-607）
