摘要
针对常规高压直流输电系统多端化改造的需求,研究了多端直流输电拓扑结构、功率传输模式,提出了基于中间换流站应用直流高速开关的多端化改造方法,并阐述了场地受限情况下的直流场改造工程的思路、方法和具体措施。另外,本文论述了直流系统多端化改造中换流站工程中采用三维设计的优势。本研究基于国内首个利用原有直流输电通道进行三端改造的直流输电工程,其系统设计与工程实践具有典型意义。
According to the system requirements of multi-terminal upgrading and reconstruction of LCC HVDC power transmission system,this paper studies the topology structure and power transmission mode of multi-terminal HVDC transmission system.A reconstruction method based on the application of DC high-speed switch(HSS)in the intermediate converter station is proposed,and the basic ideas and specific measures of DC field transformation project under extremely site constraints are discussed.In addition,this paper demonstrates the advantages of three-dimensional design in converter station engineering in multi-terminal reconstruction project.This research is based on the first three-terminal transformation HVDC transmission project in China to use the original LCC HVDC transmission channel,and its system design and engineering practice are of typical significance.
作者
董言乐
张天龙
鲁翔
刘欣
徐自闲
孟轩
DONG Yanle;ZHANG Tianlong;LU Xiang;LIU Xin;XU Zixian;MENG Xuan(EHV Power Transmission Company,CSG,Guangzhou 510663,China;Electric Power Planning&Engineering Institute,Beijing 100120,China)
出处
《南方电网技术》
CSCD
北大核心
2022年第2期97-102,共6页
Southern Power System Technology
基金
中国南方电网有限责任公司科技项目“云贵互联通道工程”(010000WS26180001)。
关键词
高压直流输电
多端化改造
直流高速开关
三维设计
多端直流
HVDC power transmission
multi-terminal upgrading and reconstruction
DC high-speed switch
3D design
multi-terminal DC
