摘要
随着能源转型需求增长及新能源快速发展,中国能源结构与电力系统结构正面临着巨大变革。为了适应大规模新能源送出需求,构建以新能源为主体的新型电力系统,迫切需要研发应用灵活可靠的输电技术,基于电力电子设备的直流输电技术重要性日益凸显。目前,中国正在应用的直流输电技术包括常规直流输电技术、柔性直流输电技术及混合直流输电技术。文中基于中国直流输电技术发展和工程实践,归纳分析了大规模新能源经直流送出技术在工程应用中的关键问题,探讨了若干技术方向,为新能源送出技术发展提供了参考。
Along with the increasing demand for energy transition and rapid development of renewable energy,the energy structure and the power system structure are under reform in China.In order to adapt to the requirement of large-scale renewable energy transmission and construct a novel power system with renewable energy as the main body,research and application of flexible transmission technologies are in urgent demand.The significance of high voltage direct current(HVDC)technology based on power electronic equipment is getting more and more prominent.At present,practical HVDC technologies in China include line commutated converter based HVDC(LCC-HVDC)technology,voltage source converter based HVDC(VSC-HVDC)technology and hybrid HVDC technology.Based on the development and engineering practice of HVDC technologies in China,the key problems of HVDC transmission technologies for large-scale renewable energy in engineering application are summarized,and several technology directions are discussed,which provide reference for the development of renewable energy transmission technology.
作者
辛保安
郭铭群
王绍武
厉璇
XIN Baoan;GUO Mingqun;WANG Shaowu;LI Xuan(State Grid Corporation of China,Beijing 100031,China;State Grid Economic and Technological Research Institute,Beijing 102209,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2021年第22期1-8,共8页
Automation of Electric Power Systems
基金
国家电网公司科技项目(柔性直流输电系统运行振荡风险分析及稳定性提升技术研究,5100-201956024A-0-0-00)。
关键词
新型电力系统
新能源
常规直流输电
柔性直流输电
混合直流输电
特高压
直流电网
novel power system
renewable energy
line commutated converter based high voltage direct current
voltage source converter based high voltage direct current
hybrid high voltage direct current
ultra-high voltage
DC grid
