摘要
电气化铁路移频自动闭塞信号传输的仿真系统通过模拟轨道电路、牵引电流及其谐波干扰、邻线干扰、轨道电路故障等来检测移频自动闭塞系统的可靠性、安全性。本文采用面向对象的技术和仿真技术对该子系统进行了研究。文中详细地阐述了传输信道的仿真模型、传输仿真系统的结构设计和仿真算法,并举出一个仿真实例,实例的结果数据验证了模型的正确性和算法的合理性。此外,本文还提出建立可编辑的模型库的设计思想,使仿真系统具有良好的扩展性和维护性。
The system to simulate signal transmission of ABAFSM(Automatic Block with AF Shift Modulated)systems of electric railways is fulfilled by simulating track circuits, electric traction interferences, adjacentline interferences and kinds of faults with the track circuits, and is used in testing and assessment of the reliability and safety of ABAFSM systems. With the application of objectoriented modeling (OOM) and simulation techniques, the simulation model of ABAFSM systems transmission channels is established, and the structure and simulation algorithm of transmission are discussed in detail in this paper. An example is given to verify the validity of the simulation model and rationality of the algorithm. The data of the simulation show that the results accord with the facts, that is to say, the model is just and the algorithm is logical. Furthermore, an editable model base is introduced to meet the demand of expansibility and maintainability of the simulation system.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2003年第6期66-70,共5页
Journal of the China Railway Society
基金
铁道部科技发展计划项目(2001X005
2002X007)
关键词
仿真
移频
闭塞
信道
轨道电路
simulation
frequency shift
block
channel
track circuit
