摘要
基于特高压直流输电系统双极对称特征,提出了一种新的可靠性评估方法。首先建立单极系统状态空间模型,然后计及交流滤波器备用效应和可用换流单元恢复效应,采用合并算子计算特高压直流输电系统双极可靠性指标;引入灵敏度分析方法确定特高压直流输电系统的薄弱环节,最后采用典型系统验证所提方法的有效性。
A new reliability assessment method was developed based on bipole symmetry characteristic of UHVDC transmission system. State space model of monopole subsystem was built, followed by dedution of merging operator considering stand-by effect of AC filter and recovery effect of converter unit. Reliability indices could be well evaluated and sensitivity analysis was applied to determine the vulnerable parts of UHVDC transmission system. Typical UHVDC transmission system was used to verify the validation of the proposed method.
作者
蒋星
陆春良
赵巍
杨晓雷
张俊
叶承晋
JIANG Xing;LU Chun-liang;ZHAO Wei(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;State GridZhejiang Electricity Power Company,Hangzhou 310007,China;Jiaxing Power SupplyCompany,State Grid Zhejiang Electricity Power Company,Jiaxing 314033,China)
出处
《能源工程》
2019年第1期18-24,31,共8页
Energy Engineering
