集成行波测距功能的高压输电线路保护装置的技术探讨

Technical Discussion on High-voltage Transmission Line Protection Device Integrated with Travelling Wave Fault Location Function

摘要:

以集成行波测距功能的高压线路保护装置为目标，提出了装置的总体硬件架构设计方案和行波测距软件的整体实现方案，并利用线路保护的判别信息提高了行波测距功能的可靠性，在不影响继电保护性能的基础上实现了行波测距功能与保护功能的整体融合，为提高输电线路保护装置的测距性能提供了技术保证，仿真结果验证了该集成技术的可行性。集成了行波测距的线路保护装置能实时精确定位线路故障点，大大减少人工巡线的工作量，缩短了故障修复时间，提高了供电可靠性。

Abstract:

Aiming at the highvoltage transmission line protection device integrated with travelling wave fault location function, the overall hardware architecture design scheme of the device and the overall software implementation scheme of travelling wave fault location module are proposed. Besides, the reliability of travelling wave fault location function is improved by using relay protection information, and the overall integration of travelling wave fault location function and protection function is realized on the basis of not affecting the performance of relay protection, which provides a technical guarantee for improving the fault location performance of highvoltage transmission line protection device. The simulation results verify the feasibility of the integration technology. The line protection device integrated with travelling wave fault location can accurately locate the line fault point in real time, greatly reduce the workload of manual line patrol, shorten the fault repair time, and improve the reliability of power supply.