Feasibility of DC transmission networks
Feasibility of DC transmission networks
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DOI：
10.1109/isgteurope.2011.6162829
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发表时间：
2011-12
期刊：
影响因子：
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通讯作者：
D. Jovcic;D. Hertem;K. Linden;J. Taisne;W. Grieshaber
中科院分区：
文献类型：
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作者：
D. Jovcic;D. Hertem;K. Linden;J. Taisne;W. Grieshaber
本文探讨了目前的技术状况，并讨论了发展直流输电网的技术选择。VSC HVDC的快速发展，最近的海上VSC项目，多端HVDC的经验和快速直流断路器的最新发展使大型网状直流电网更接近现实。最重要和最困难的技术挑战是直流电网的系统级保护。文章进一步讨论了一些正在进行的研究方向，如使用行波检测快速保护或部署DC/DC转换器隔离DC故障。欧盟资助的Twentis项目的主要工作包之一研究了直流电网运行的主要先决条件。该项目已经完成了对直流电网的一些主要研究，两个硬件演示系统正在开发中：里尔大学的模拟直流电网和阿尔斯通的快速直流断路器。
This paper examines the current status of technology and discusses technical options for developing DC transmission grids. The fast advances in VSC HVDC, the recent offshore VSC projects, the experience with multiterminal HVDC and recent development of fast DC circuit breakers bring large meshed DC grids closer to reality. The most important and most difficult remaining technical challenge is the system level protection of DC grids. The article further discusses some of the ongoing research directions like the use of travelling wave detection for fast protection or deployment of DC/DC converters for isolation of DC faults. One of the main work packages in EU funded Twenties project studies the major prerequisites for operation of DC grids. This project has delivered some major studies of DC grids and two hardware demonstration systems are under development: a mock-up DC grid at University of Lille and fast DC Circuit Breaker at ALSTOM.