Usage and Benefit of an Overhead Line Monitoring System
Usage and Benefit of an Overhead Line Monitoring System
复制标题
架空线路监控系统的用途和优点
DOI：
10.1109/ichve.2008.4773996
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
S. Jaufer
中科院分区：
文献类型：
--
作者：
M. Muhr;S. Pack;S. Jaufer
架空线路是电力传输的骨干。与配电网相反，输电系统只在例外情况下由较长的电缆线路组成。典型的例外情况是连接洞穴发电厂、机场或鸟类保护区的通道以及城市中心的线路。在大多数情况下，架空线路是最经济和可行的能源传输解决方案。在旅游区，架空线路将被视为对自然或景观的损害，因此在大多数国家，审批链和程序冗长而详细。另一方面，在过去的十年中，由于电力市场的开放，欧洲的能源消耗正在增长，传输功率的波动性也在增加。这一开放过程导致停止扩大互操作网络，并最大限度地减少对现有线路的维护。目前，电网在设备极限状态下运行的情况越来越多，小面积和大面积的干扰和停电事故也越来越多。输电线路的运营商被迫保证电力供应，因此他们必须提高网络的可靠性。一种解决方案是监控关键（重负载）架空线路。例如，通过了解热条件，可以降低意外停机的风险。目前，市场上有几种监测系统。它们在条件评估的原则和技术上有所不同。三个最令人感兴趣的输出变量是线路温度、能够传输的功率和所研究的部分的实际下垂。本文对现有的架空线路监测系统进行了概述，并概述了其应用的用途和效益。热监测是一种提高网络可靠性以及增加或优化有能力的传输功率的技术。
Overhead lines are the backbone of the electrical power transmission. Contrary to the distributions networks, the transmission system consists only in exceptional cases of longer cable lines. Typical exceptions are connections of cavern power plants, approaches to airports or bird sanctuaries and lines in urban centres. In the majority of cases, an overhead line is the most economic and practicable solution for the energy transmission. In tourism regions, an overhead line will be seen as impairment of nature or landscape and so the approval chain and procedure is in most countries long-winded and circumstantial. At the other hand, the energy consumption in Europe is growing and the volatility of transmitted power is also increasing during the last decade caused by the opening of the electric energy market. This opening process leads to a stopping of the enlargement of the interoperation network and to a minimisation of the maintenance of existing lines. Today the network operates more often at the limit of the equipment and the small and large-areas disturbances and blackouts are increasing. The operators of transmission lines are forced to ensure the electrical power supply and so they have to improve the reliability of the network. One solution is to monitor the critical (heavy loaded) overhead lines. For example with the knowledge of the thermal condition, the risk of unexpected outages can be reduced. Today several monitoring systems are available on the market. They differ in the principle and techniques of the condition evaluation. The three most interesting output variables are the line temperature, the capable transmission power and the actual sag of the investigated section. In this paper an overview of existing overhead line monitoring system and also an outline over the usage and benefit for the application will be given. Thermal monitoring is one technique to improve the reliability of the network and for increasing or optimising the capable transmission power.