内陆清洁能源基地±800kV/10000MW直流外送拓扑设计  

Topology Design of ±800 kV/10000 MW HVDC Transmission for Inland Large-scale Renewable Energy Bases

作　　者：向往[1,2] 梅晓波 赵峥 郑宽 孟沛彧 文劲宇[1,2] XIANG Wang;MEI Xiaobo;ZHAO Zheng;ZHENG Kuan;MENG Peiyu;WEN Jinyu(State Key Laboratory of Advanced Electromagnetic Technology,Huazhong University of Science and Technology,Wuhan 430074,China;School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;State Grid Economic and Technological Research Institute Co.,Ltd.,Beijing 102209,China)

机构地区：[1]强电磁技术全国重点实验室(华中科技大学),武汉430074 [2]华中科技大学电气与电子工程学院,武汉430074 [3]国网经济技术研究院有限公司,北京102209

出　　处：《高电压技术》2024年第5期2052-2066,共15页High Voltage Engineering

基　　金：国家电网有限公司总部管理科技项目(±800 kV/8 GW特高压柔性直流输电系统设计及关键设备参数研究)(5108-202218280A-2-320-XG)。

摘　　要：大力开发大规模清洁能源基地是国家“十四五”现代能源体系规划明确的重点任务。针对藏东南地区大规模水电、光伏送出场景,计及新能源基地海拔高、输电走廊受限问题,设计了±800 kV/10000 MW多直流电压等级混合直流、多直流电压等级柔直和四端混合直流系统送出拓扑。针对沙戈荒地区风电、光伏送出场景,设计了±800 kV/10000 MW三端柔直、四端柔直和多直流电压等级混合直流系统送出拓扑。最后,在PSCAD/EMTDC仿真平台搭建了各拓扑方案的仿真模型,对比分析了各拓扑的技术特点。通过研究,以期为未来相关工程实践拓扑设计提供参考。Developing large-scale renewable energy bases is one of the key tasks in the national 14th Five-Year Plan of modern energy systems.Aiming at transmitting large-scale hydropower and photovoltaic power in southeast Tibet,considering the high altitude of the energy base and the limited transmission corridor,we design the topologies of the±800 kV/10000 MW heterogeneous serial high voltage direct current(HVDC)transmission system,the four-terminal modular multilevel converter(MMC)based HVDC system with multiple DC voltage levels,and the four-terminal hybrid HVDC,respectively.Aiming at transmitting wind power and photovoltaic power in the desert,barren and Gobi areas,we propose the±800 kV/10000 MW three-terminal MMC-HVDC system,four-terminal MMC-HVDC system,and heterogeneous serial HVDC system with multiple DC voltage levels.Finally,the simulation models of each topology are built using PSCAD/EMTDC.And the technical characteristics of each topology are compared and analyzed.The research of this paper may provide a reference for the topology design of related engineering practices in the future.

关 键 词：可再生能源并网 柔性直流输电 常规直流输电 换流器拓扑 架空线传输 

分 类 号：TM721.1[电气工程—电力系统及自动化]