未来我国超导直流电网展望  

THE PROSPECTS OF SUPERCONDUCTING DC GRID INCHINA

作　　者：王全胜[1,2,3] 张国民[1] 肖立业[1] 刘怡[1,2] 

机构地区：[1]中国科学院大学,北京100049 [2]中国科学院应用超导重点实验室中国科学院电工所研究所,北京100190 [3]防灾科技学院,北京1016011

出　　处：《低温物理学报》2014年第2期155-160,共6页Low Temperature Physical Letters

基　　金：国家重点基础研究发展计划项目(973计划)(批准号:2012CB21503)资助的课题~~

摘　　要：随着我国新能源大规模的开发和利用,新能源发电本身所具有的间歇性与不稳定性特点,使原有的电力系统网络面临着一系列现实问题与瓶颈难题,电网结构是决定电网配置资源能力的重要方面,本文从提高电网接纳能力的角度出发,提出通过建设广域覆盖的超导直流电网以有效解决可再生能源集中并网难题.建设全国性的直流骨干输电网,不仅可更有效地利用可再生能源,也将积极推动坚强智能电网的建设.与交流系统相比,直流电网在未来城市供电、新能源接入、孤岛供电等领域也有较大的优势.根据中国国情,对直流电网在中国建设的可行性进行了具体分析,并提出中国直流电网主干结构设想图,并指出了超导技术在直流电网建设中面临的巨大机遇,为中国超导直流电网建设提出了思考和建议.As large-scale development and utilization of Chinas new energy, the characteristics of intermittent an3 instability which the new energy power generation itself has, make the original power system network faced a series of practical problems and bottlenecks puzzle, the ability to allocate resource of grid is determined by the grid struc- ture , important resource capacity, from the aspect of improve the acceptance ability of the grid, It is proposed that this problem Can be solved through constructing a wide-area DC grid. This paper presented that constructing a na- tional backbone DC transmission grid would lead to exploring renewable energy more effectively and promoting con- struction of China＇ s smart grid. Compared to AC power systems,DC grids have many advantages in power distribu- tion networks and micro-networks. Based on China＇s resource conditions, this paper also analyzed the feasibility of DC transmission grid and DC distribution network in China. Then it proposed a blueprint of DC grid development in China, from which the thoughts and suggestions for the superconducting DC grid technology direction were put for- ward.

关 键 词：新能源并网 超导直流电网 低频振荡 短路容量 

分 类 号：TM721.1[电气工程—电力系统及自动化]