摘要
随着城市负荷快速增长,供电可靠性要求不断提高,城市供给电能面临着越来越大的困难和挑战。柔性直流技术为城市构建高压电网和接入微电网提供了支持。柔性直流输电利用电压源换流器VSC的自换向特性运行,具有诸多优点。分析了当前城市配网面临问题和柔性直流输电原理及技术优势,从优越性、成本估计和微网接入等方面对柔性直流输电在城市电网中的应用进行了探讨。
Along with the rapid growth of load,the supply reliability requirements also enhance,as a result power supplying in urban areas faces big difficulty and challenges.The emergence of flexible HVDC technology gives support for the construction of urban high voltage power grid and the access of micro-grid.Flexible HVDC,using the self-commutated features of voltage source converter VSC,has many advantages,this paper analyzes the current problems in urban distribution network,the principles and technical advantages of flexible HVDC,studies the application of flexible HVDC power transmission in urban power network from the terms of the advantages of flexible HVDC.And it makes a discussion on flexible HVDC power transmission to urban power network with respects to cost estimates,micro-network access and so on.
出处
《东北电力技术》
2012年第2期11-14,20,共5页
Northeast Electric Power Technology
关键词
城市电网
柔性直流
微网
Urban power network
Flexible HVDC
Micro-grid
