无砟轨道钢轨阻抗特性影响因素分析  

Analysis of Influence Factors of Ballastless Track Impedance Characteristics

作　　者：张汉花 邹军[1] 王智新[2] 阳晋[2] 乔志超[2] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084 [2]北京全路通信信号研究设计院,北京100073

出　　处：《铁道学报》2017年第5期62-66,共5页Journal of the China Railway Society

基　　金：国家自然科学基金(51577103)

摘　　要：轨道电路被广泛应用于高速铁路控制系统,以检查高速铁路是否被机车占用,并保证行车安全。钢轨阻抗是轨道电路重要的一次侧参数,本文结合有限元及电路方法,提出求解无砟轨道钢轨阻抗的有限元电路综合法,建立无砟轨道钢轨阻抗的计算模型,并研究频率、土壤电导率、钢筋埋地深度及钢筋疏密等参数对钢轨电阻和电感的影响规律,分析这些参数对钢轨电阻和电感的影响程度,得出用以指导无砟轨道铁路设计的结论。To detect whether the high-speed railway is occupied and ensure the safety of the train, the track circuit system is widely used in the high-speed railway control system. Track impedance is the important primary side parameter of the track circuit system. In this paper, based on the combining method of finite element and circuit, the finite element synthesis method was proposed to calculate the ballastless track impedance. The calculation model of rail impedance of the ballastless track was established to study the influence of some parameters, such as frequency, soil conductivity, buried depth of the reinforcement bars and the spacing of reinforcement bars. The influence of these parameters on track resistance and inductance was presented and analyzed, which can be used to guide the designing of the ballastless track railway.

关 键 词：高速铁路 无砟轨道 轨道阻抗 有限元方法 

分 类 号：TM15[电气工程—电工理论与新技术] U284.2[交通运输工程—交通信息工程及控制]