含混合多端直流的电力系统静态电压稳定域构建  

Static voltage stability region construction of power system with Hybrid-MTDC

作　　者：李雪[1] 崔悦 姜涛[1] 陈厚合[1] 李国庆[1] LI Xue;CUI Yue;JIANG Tao;CHEN Houhhe;LI Guoqing(Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology,Ministry of Education,Northeast Electric Power University,Jilin 132012,China)

机构地区：[1]东北电力大学现代电力系统仿真控制与绿色电能新技术教育部重点实验室,吉林吉林132012

出　　处：《电力自动化设备》2023年第9期226-235,共10页Electric Power Automation Equipment

基　　金：吉林省自然科学基金资助项目(20230101374JC)。

摘　　要：针对含混合多端直流输电(Hybrid-MTDC)的交直流系统静态电压稳定域(SVSR)构建难题,提出一种含Hybrid-MTDC的交直流系统静态电压稳定域边界(SVSRB)快速搜索的预测-校正方法.计及多类型换流站的控制策略切换特性和站间控制策略协同,构建含Hybrid-MTDC的交直流系统连续潮流模型,搜索SVSRB上的首个临界点.借助获取的首个临界点信息,根据SVSRB拓扑特性,通过所提预测-校正模型实现含Hybrid-MTDC的交直流系统SVSRB上相邻临界点的快速、准确获取,进而构建出含Hybrid-MTDC的交直流系统SVSR.通过含Hybrid-MTDC的IEEE 5节点和IEEE 118节点测试系统对所提方法进行分析验证,结果表明所提方法可实现含Hybrid-MTDC的交直流系统SVSR高效、准确构建.Aiming at the challenge of static voltage stability region(SVSR)construction of AC/DC system with hybrid multi-terminal high voltage direct current(Hybrid-MTDC),a predictor-corrector method to investi⁃gate the SVSR boundary(SVSRB)of AC/DC system with Hybrid-MTDC is presented.Considering the con⁃trol strategy switching characteristics of the multi-type converter stations and the control strategy cooperation among converter stations,a continuation power flow(CPF)model for the AC/DC system with Hybrid-MTDC is constructed to find the first critical point on the SVSRB.By using the obtained first critical point infor⁃mation,according to the topological characteristics of SVSRB,the proposed predictor-corrector model is used to obtain the adjacent critical point in SVSRB of AC/DC system with Hybrid-MTDC rapidly and correctly,and then the SVSR of AC/DC system with Hybrid-MTDC is formed.The proposed method is analyzed and verified in IEEE 5-bus and IEEE 118-bus test systems with Hybrid-MTDC.The result shows that the proposed method can achieve the SVSR construction in AC/DC system with Hybrid-MTDC effectively and correctly.

关 键 词：混合多端直流 交直流系统 连续潮流 预测-校正方法 静态电压稳定域 静态电压稳定域边界 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM712