多馈入直流系统的特高压直流接入方式优选方法  

Optimal selection of UHVDC connection mode to multi-infeed HVDC system

作　　者：徐箭[1] 张华坤[1] 孙涛[1] 王甜[1] 蒋一博 林常青[2] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072 [2]国网湖北省电力公司,湖北武汉430077

出　　处：《电力自动化设备》2015年第6期58-63,92,共7页Electric Power Automation Equipment

基　　金：国家重点基础研究发展计划(973计划)资助项目(2012CB215201)~~

摘　　要：研究并建立了评估多馈入直流系统的特高压直流接入方式的评价指标体系,以全面评估网损、静态安全稳定性、多馈入短路比等因素对接入方式的影响。提出了基于最优组合权重的多馈入直流系统的特高压直流接入方式优选方法,基于主客观加权属性值一致化建立了求取最优组合权重的优化模型。在此基础上,以相对贴近度指标来量化评估各备选方案,从而实现优选决策。最后,将该方法应用于蒙西—武汉特高压直流接入华中电网的方式优选决策中,得到了分层接入方式最优的结论。The connection mode of UHVDC to muhi-infeed HVDC system is researched and an evaluation index system is established to comprehensively assess the influence of different factors on the connection mode,such as network loss,static safety,muhi-infeed short circuit ratio,etc. An optimal selection method based on the optimal combination weight is proposed and the combination weight optimization model based on the unification of subjectively and objectively weighted attributes is buih,based on which ,the candidate modes are quantitatively evaluated by the relative similarity degree to realize the optimal selection. This method is employed to select the optimal connection mode of West Mongolia-Wuhan UHVDC to Central China Power Grid and the hierarchical connection mode is selected.

关 键 词：多馈入 直流系统 特高压直流输电 接入方式 最优组合赋权 评估 相对贴近度 优化 

分 类 号：TM72[电气工程—电力系统及自动化] TM715.3