Abstract: The medium and low-speed maglev trains realize train-to-wayside information interaction through the TWC (Train-to-Wayside Communication) loop line based on the principle of electromagnetic induction. The TWC loop line is important equipment to ensure the safety and reliability of train operation. In a complex electromagnetic environment, the stability of information transmission is critical. This paper uses three-dimensional electromagnetic simulation software to conduct dynamic modeling and verification analysis of the TWC loop, studies the transmission performance of the simulation system, and verifies the model with field test data, providing a solid theoretical foundation for the maintenance of field system equipment and system R&D and design.

Key words: maglev, loop line, electromagnetic interference, simulation

摘要： 中低速磁悬浮列车通过车地通信（Train-to-Wayside Communication, TWC）环线基于电磁感应原理实现车地信息交互，TWC环线是保证列车运行安全与可靠的重要设备。在复杂电磁环境下，信息传输的稳定与否十分关键。利用三维电磁仿真软件对TWC环线进行动态建模及验证分析，研究仿真系统的传输性能，结合现场测试数据对本模型进行验证，为现场系统设备的维护和系统研发设计提供坚实理论基础。

关键词: 磁悬浮, 环线, 电磁干扰, 仿真