李勇,倪晓军
LI Yong,NI Xiaojun

• 1:国网浙江综合能源服务有限公司
• 2:国网浙江省电力有限公司电力科学研究院

摘要(Abstract)：

短路比是评估交直流系统强度的重要指标,影响着直流系统的运行特性。通过介绍单馈入直流输电系统中短路比的评估方法,针对多馈入高压直流、多馈入柔性直流和包含高压直流和柔性直流的混合多馈入直流3种电网结构,分析并对比了多馈入直流短路比评估方法的最新研究成果。最后阐述了多馈入直流短路比评估方法的主要问题和发展方向,为指导直流系统的规划提供理论依据。
Short circuit ratio(SCR) is an important index to indicate the system strength of AC/DC system,and it influences the operation characteristics of HVDC. Firstly, this paper introduces the evaluation method of SCR in single-infeed HVDC system. Then the multi-infeed SCR method in multi-infeed HVDC, multi-infeed VSC-HVDC and hybrid multi-infeed HVDC systems are analyzed and compared. Finally, the main problems and development directions of the MISCR method are analyzed, aiming to provide theoretical guidance for the HVDC planning.

关键词(KeyWords)： 短路比;多馈入直流;系统强度;混合直流
short circuit ratio;multi-infeed HVDC;system strength;hybrid HVDC

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李勇,倪晓军
LI Yong,NI Xiaojun

DOI: 10.19585/j.zjdl.201809001

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