西南交通大学学报
西南交通大學學報
서남교통대학학보
JOURNAL OF SOUTHWEST JIAOTONG UNIVERSITY
2010年
1期
88-93,98
,共7页
董安平%张雪原%邓明丽%陈纪刚%吴广宁
董安平%張雪原%鄧明麗%陳紀剛%吳廣寧
동안평%장설원%산명려%진기강%오엄저
钢轨%综合地线%牵引回流%等效阻抗
鋼軌%綜閤地線%牽引迴流%等效阻抗
강궤%종합지선%견인회류%등효조항
rail%integrated grounding wire%traction return current%equivalent impedance
为探讨高速、重载运营条件下牵引回流的分布规律,通过分析钢轨和综合地线电路,获得了钢轨和综合地线的等效阻抗,进而得到牵引电流在钢轨和综合地线之间的分配比例.根据遂渝线无砟轨道试验段典型参数计算出综合地线上最大电流为牵引回流的19.7%,与实际测量结果吻合.
為探討高速、重載運營條件下牽引迴流的分佈規律,通過分析鋼軌和綜閤地線電路,穫得瞭鋼軌和綜閤地線的等效阻抗,進而得到牽引電流在鋼軌和綜閤地線之間的分配比例.根據遂渝線無砟軌道試驗段典型參數計算齣綜閤地線上最大電流為牽引迴流的19.7%,與實際測量結果吻閤.
위탐토고속、중재운영조건하견인회류적분포규률,통과분석강궤화종합지선전로,획득료강궤화종합지선적등효조항,진이득도견인전류재강궤화종합지선지간적분배비례.근거수투선무사궤도시험단전형삼수계산출종합지선상최대전류위견인회류적19.7%,여실제측량결과문합.
In order to investigate the distribution of traction return current for high-speed and heavy-load railways, the equivalent impedances of rail and integrated grounding wire were calculated by analyzing their electrical circuits. With the equivalent impedances, the ratio of traction currents in the rail and integrated grounding wire was obtained. A calculational result based on the typical parameters of ballastless track of Shuining-Chongqing railway indicates that the maximum current flowing through the integrated grounding wire is 19.7% of the traction return current, and it is consistent with the testing result.