ZPW-2000A型移频闭塞系统室外调谐单元原理设计与应用

Design and Application of Outdoor Tuning Unit of ZPW-2000A Frequency Shift Block System

针对ZPW-2000A型无绝缘移频闭塞系统室外原理设计进一步探索和研究,有助于在工程实践中能更好的应用和改进,为铁路信号技术的发展储备关联技术,并为信号数据采集探索方向。室外调谐单元区别于机械绝缘节,在相邻轨道之间的信号隔离采用电气隔离方式,它与机械绝缘节的运用原理完全不同,基于基础的电路原理进行详细的电路原理描述,充分分析电气绝缘是如何运用谐振电路来实现信号隔离和保真传输,将原理和实际的运行环境进行统一,详细分析,逐步推算,从基本的电路原理到深入的应用,将电气绝缘的原理成分展示。

The further exploration and research on the outdoor principle design of ZPW-2000 A noninsulated frequency shift block system will help to improve the application and improvement in the engineering practice, reserve the related technology for the development of railway signal technologies, and explore the direction of the signal data acquisition. The outdoor tuning unit is different from the mechanical insulated joints. The signal isolation between adjacent tracks adopts the electrical isolation method. It is completely different from the application principle of the mechanical insulated joints. Based on the basic circuit principle, the paper describes detailed circuit principles, analyzes how the electrical insulation realizes the signal isolation and fidelity transmission through resonant circuit and unifies the principle and the actual operation environment, and illustrates the principle of electrical insulation by the detailed analysis and the gradual calculation from the basic circuit principle to the indepth application.