摘要
从多馈入直流系统功率稳定性角度出发,基于两馈入直流输电系统简化模型,研究了多馈入直流系统功率稳定性与多馈入有效短路比之间的定量关系。分析结果表明:多馈入有效短路比不能完全反映直流系统的功率稳定性,两者之间难以建立明确的定量关系;当受端电网直流馈入数较多时,各回直流系统的临界多馈入有效短路比将可能远小于1.5。
From the perspective of the power stability of multi-infeed HVDC system,based on the simplified model of a two-infeed HVDC system,the quantitative relationship between the power stability of multi-infeed HVDC system and the MIESCR（Multi-Infeed Effective Short Circuit Ratio） is studied,which reveals that,the MIESCR could not completely reflect the power stability of HVDC system and it is difficult to set a quantitative relationship between them.When multiple HVDC links terminate at one AC system,the CMIESCR（Critical Multi-Infeed Effective Short Circuit Ratio） of each HVDC link may become much less than 1.5.
出处
《电力自动化设备》
EI
CSCD
北大核心
2012年第11期46-50,共5页
Electric Power Automation Equipment
基金
国家高技术研究发展计划项目(863计划)(2011AA05-A119)~~
关键词
高压直流输电
多馈入
有效短路比
功率稳定
稳定性
HVDC power transmission
multi-infeed
effective short circuit ratio
power stability
stability
