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多馈入交直流混联受端电网直流接入能力研究评述
引用本文:李兆伟,翟海保,刘福锁,黄志龙,崔晓丹,李威.多馈入交直流混联受端电网直流接入能力研究评述[J].继电器,2016,44(8):142-148.
作者姓名:李兆伟  翟海保  刘福锁  黄志龙  崔晓丹  李威
作者单位:南京南瑞集团公司,江苏 南京 211000,国家电网公司华东分部,上海 200120,南京南瑞集团公司,江苏 南京 211000,国家电网公司华东分部,上海 200120,南京南瑞集团公司,江苏 南京 211000,南京南瑞集团公司,江苏 南京 211000
基金项目:国家电网公司科技项目“特高压直流连续换相失败、再启动工况下安全稳定控制技术研究”
摘    要:受端电网的直流接入能力是大规模交直流混联电网调度运行部门越来越关注的问题。从直流多馈入交直流混联电网后面临的主要问题出发,分析了影响受端电网直流接入能力的主要因素,对现有直流及新能源接入能力研究方法进行总结。分析了各方法的优缺点,探讨了受端电网直流接入能力的计算方法及未来的研究方向。受端电网直流接入能力是一个多目标优化问题,下一步研究重点是建立系统的优化模型,科学化、实用化地评估受端电网直流接入能力。针对限制受端电网直流接入能力的主要因素,提出了提高电网直流接入能力的相关建议。

关 键 词:高压直流输电  多馈入系统  直流接入能力  多馈入短路比

DC access capability study for multi-infeed HVDC power transmission system
LI Zhaowei,ZHAI Haibao,LIU Fusuo,HUANG Zhilong,CUI Xiaodan and LI Wei.DC access capability study for multi-infeed HVDC power transmission system[J].Relay,2016,44(8):142-148.
Authors:LI Zhaowei  ZHAI Haibao  LIU Fusuo  HUANG Zhilong  CUI Xiaodan and LI Wei
Institution:NARI Group Corporation, Nanjing 211000, China,East Subsection of State Grid Corporation of China, Shanghai 200120, China,NARI Group Corporation, Nanjing 211000, China,East Subsection of State Grid Corporation of China, Shanghai 200120, China,NARI Group Corporation, Nanjing 211000, China and NARI Group Corporation, Nanjing 211000, China
Abstract:DC access capability for multi-infeed HVDC power transmission system is an important issue which gets power companies concerned greatly. From the problems caused by large scale multi-infeed HVDC, the main limiting factors of DC access capability are analyzed and the current researches on DC and new energy access capability are summarized. Based on these the calculation method and the next research directions of DC access capability are discussed. DC access capability is a multi objective optimization problem, and the next key study is to build the system optimal model to evaluate the DC access capability of multi-infeed HVDC power transmission system. For the main limiting factors the suggestions to improve DC access capability and optimize the layout of multi-infeed HVDC are proposed.
Keywords:HVDC power transmission  multi-infeed system  DC access capability  multi-infeed short circuit ratio
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