基于电网实测行波的时间分布原理
Time Distribution Principle Using Measured Traveling Waves in Power Grid
AI总结：
针对分布式系统时间同步的传统方法存在信号脆弱性等问题，提出基于电网行波测量的新型时间同步原理，经IEEE 14节点系统仿真验证可实现微秒级精度，是传统方法的潜在替代方案。
AI中文摘要：
精确的时间同步对分布式系统至关重要。传统方法如基于卫星的同步和基于通信的方法面临信号脆弱性、依赖通信延迟对称性等挑战。本文提出一种基于电网中行波（TW）测量的新型时间同步原理，利用正向与反向行波传播的固有对称性，无需依赖外部时间参考即可实现高精度时间分布。该方法通过改进的IEEE 14节点系统上的电磁暂态仿真验证，结果表明在正常工况下，所提方法可达到微秒级同步精度。研究表明，基于行波的时间同步原理是传统方法的潜在替代方案，可提升安全性并降低对通信质量的依赖。
英文摘要：
Accurate time synchronization is essential for distributed systems. Conventional methods, such as satellite-based synchronization and communication-based approaches, face challenges including signal vulnerability and dependence on communication delay symmetry. This paper proposes a novel time synchronization principle based on traveling wave (TW) measurements in power grids. By leveraging the inherent symmetry of forward and backward TW propagation, the proposed method achieves high-precision time distribution without relying on external time references. The methodology is validated through electromagnetic transient simulations on a modified IEEE 14-bus system. The results demonstrate that under normal conditions, the proposed approach achieves microsecond-level synchronization accuracy. These findings suggest that the TW-based time synchronization principle is a potential alternative to traditional methods, offering improved security and reduced dependence on communication quality.
