张北柔直电网的构建与特性分析  

Construction and Characteristic Analysis of Zhangbei Flexible DC Grid

作　　者：郭贤珊 周杨 梅念[3] 赵兵 GUO Xianshan;ZHOU Yang;MEI Nian;ZHAO Bing(DC Construction Department,State Grid Corporation of China,Xicheng District,Beijing 100031,China;Global Energy Interconnection Research Institute,Changping District,Beijing 102209,China;State Grid Economic and Technological Research Institute Co.,Ltd.,Changping District,Beijing 102209,China;China Electric Power Research Institute,Haidian District,Beijing 100192,China)

机构地区：[1]国家电网有限公司直流建设部,北京市西城区100031 [2]全球能源互联网研究院有限公司,北京市昌平区102209 [3]国网北京经济技术研究院有限公司,北京市昌平区102209 [4]中国电力科学研究院有限公司,北京市海淀区100192

出　　处：《电网技术》2018年第11期3698-3707,共10页Power System Technology

摘　　要：柔性直流输电技术是继交流输电、常规直流输电之后的新一代输电技术,基于柔性直流输电技术的直流电网是未来电网的重要组成部分。研究了直流电网的定义,基于张北柔性直流电网示范工程,分析了网络拓扑结构、主接线方式和设备配置方案,研究了直流电网低惯性弱阻尼特性,多电力电子设备协调配合难题和器件支撑能力不足的问题,提出了解决方案,为我国直流电网的研究、张北工程建设提供技术支撑。Flexible HVDC technology is a new generation of transmission technology after alternating current transmission technology and UHVDC transmission technology. DC grid based on flexible HVDC technology is an important part of future power grids. Based on Zhangbei flexible DC grid pilot project, definition of DC grid, network topology, main connection and equipment configuration scheme are studied in this paper. Some characteristics of Zhangbei project such as low inertia and weak damping, large amount of power electronic equipment, insufficient support of IGBT devices are analyzed in detail. In order to solve these problems, some suggestions are put forward, providing technical reference for future research and construction of Zhangbei DC grid in China.

关 键 词：模块化多电平换流器 大规模新能源接入 张北直流电网 构建方案 

分 类 号：TM721[电气工程—电力系统及自动化]