电网技术Issue(12)：3336-3341,6.
计及直流权重的多直流馈入落点选择方法
A Method to Select Terminal Locations in Multi-Infeed HVDC Power Transmission System Considering Weights of HVDC Transmission Lines
摘要
Abstract
In the planning of power grid with multi-infeed HVDC transmission system, it is necessary to decide the terminal locations of HVDC transmission lines. Based on equivalent impedances among HVDC terminal locations and nominal capacities of HVDC transmission lines, the definition of weight coefficient reflecting the impact of HVDC transmission system within the power grid is given. Based on multi-infeed short-circuit ratio the definition of the index to evaluate terminal location schemes for multi-infeed HVDC transmission system, in which the weights of HVDC transmission lines are taken into account, and its computing method are proposed. According to interaction factors among HVDC transmission lines a screening strategy of HVDC transmission lines brought into the weights is put forward, and the technical process for the selection of terminal locations for HVDC transmission lines, which covers primary selection, evaluation and sequencing and validation of security and stability, is given. The proposed methods incarnate the feature of interaction among multi HVDC transmission lines, and are available for reference to the calculation and analysis of selecting terminal locations of multi-circuit HVDC transmission lines in power grid planning scheme. The proposed methods have been applied to the planning of East China power grid in 2020, and the obtained results of terminal location schemes of HVDC transmission lines for the planning, which are sequenced according to advantages and disadvantages, consist with the results from time-domain simulation remarkably.关键词
多直流馈入/电网规划/多馈入短路比/权重系数Key words
multi-infeed HVDC transmission system/power grid planning/multi-infeed short-current ratio/weight coefficient分类
信息技术与安全科学引用本文复制引用
周勤勇,刘玉田,汤涌..计及直流权重的多直流馈入落点选择方法[J].电网技术,2013,(12):3336-3341,6.基金项目
国家电网公司电网重大专项资助项目课题(SGCC-MPLG001-2012)。 （SGCC-MPLG001-2012）
