摘要
在介绍轨道电路的基础上,利用多线模型对轨道电路进行建模。将轨道电路元件分为传输线和点状元素两类。根据两类元件的不同特性分别建立其数学模型,并给出了传输线多线模型和点状元素多线模型参数的计算方法。在检验传输线多线模型的模拟效果后,结合二线模型的相关参数,提出钢轨多线模型的改进方案。根据建立的数学模型进行仿真计算,可以得出轨道电路中各点上的电流和电压值。实例应用表明,所建立的轨道电路电气特性仿真系统能较准确地模拟轨道电路的电气特性。
On the basis of the presentation of the track circuit, the track circuit is modeled by using multi-line model. The track circuit components are classified into two-type components of the transmission line and dot element. According to the different characteristics of two types of components, their mathematical models are separately established and the calculation methods of multi-line model of transmission line and multi line model parameters of dot element are provided. After testing the simulation result of multi-line model and by using related parameters of two-line model, the improvement scheme of the multi-line mode of steel rail is proposed. By making simulation calculation according to the established mathematical model, the current and voltage values on all the points of track circuits can be drawn. The application instances show that the established simulation system of the electric characteristic of track circuit can more accurately simulate electric characteristics of track circuit.
出处
《城市轨道交通研究》
北大核心
2011年第12期23-27,93,共6页
Urban Mass Transit
关键词
轨道电路
电气特性
仿真研究
track circuit, electric characteristic~ simulationstudy
