基于拓展Carson理论的单线隧道内牵引网电气参数计算研究  

Study of Electrical Parameter Calculation for Traction Network in Single-line Tunnel Based on the Extend of Carson Theory

作　　者：邓云川[1] 高宏[1] 陈建君[1] 

机构地区：[1]中国中铁二院工程集团有限责任公司,四川成都610031

出　　处：《大功率变流技术》2016年第3期6-11,共6页HIGH POWER CONVERTER TECHNOLOGY

摘　　要：Carson理论假设位于大地上所有导体均以大地为唯一回流通道,而实际牵引网存在多条回流通道,该假设导致牵引网各导体的电流分配难以直接确定,无法直接获取各导体的载流能力需求。文章基于多导体传输回路系统,拓展了Carson理论的假设前提,在牵引网阻抗计算中考虑了实际参与回流的导体。利用该拓展理论,结合隧道内Tylavsky公式确定的大地等值深度计算方法 ,完成了单线隧道内阻抗参数计算,为电气化铁路牵引网数学模型的精确描述及电气参数计算探索了新的思路和方法。Carson theory assumes that all conductors on the earth take the ground as an unique loop circuit, but there are multiple return paths in one actual traction network, thus it is difficult to directly determine current distribution and obtain the current -carrying requirement of each conductor in traction network. Based on the loop circuit system of multi- conductor transmission, it revised the assumption of Carson theory and considered the conductors that actually involved in circumfluence. On the basis of this revised theory, it combined the equivalent depth calculation of the ground achieved by Tylavsky formula to complete comprehensive impedance parameter calculation of single-line tunnel, which explored new ways for the accurate description of mathematical model and the calculation of electrical parameters of the electrified railway traction network.

关 键 词：牵引网电气参数 Carson理论 多导体传输线 综合阻抗 

分 类 号：U223[交通运输工程—道路与铁道工程]