电力系统自动化2025，Vol.49Issue(10)：123-134,12.DOI:10.7500/AEPS20240830001
电力系统电压稳定域边界的全纯嵌入搜索方法
Holomorphic Embedding Searching Method for Voltage Stability Region Boundary of Power Systems
摘要
Abstract
Static voltage stability region(SVSR)studies power system voltage stability from the perspective of"region",effectively addressing voltage stability issues caused by strong fluctuations and randomness of renewable energy output.To accurately and rapidly construct SVSR,a SVSR boundary(SVSRB)searching method is proposed based on the holomorphic embedding method(HEM).Firstly,a voltage amplitude-active power sensitivity holomorphic embedding function criterion for searching voltage saddle node bifurcation(SNB)points is proposed based on the HEM theory.Secondly,this criterion is combined with a variable step-size control strategy to achieve fast and accurate search of individual SNB point.Then,according to the topological characteristics of SVSRB and utilizing known SNB point information,adjacent SNB points are efficiently solved through fast and flexible holomorphic embedding,thereby realizing efficient multi-dimensional SVSRB search.Finally,cases on test systems such as WECC 9-bus and IEEE 118-bus systems verify that the proposed method enables rapid and accurate construction of SVSRB.关键词
电压稳定性/全纯嵌入/连续潮流/鞍结分岔Key words
voltage stability/holomorphic embedding/continuation power flow/saddle node bifurcation引用本文复制引用
李雪,职梦磊,姜涛,李国庆..电力系统电压稳定域边界的全纯嵌入搜索方法[J].电力系统自动化,2025,49(10):123-134,12.基金项目
国家自然科学基金资助项目(52077029,U23B20131). This work is supported by National Natural Science Foundation of China(No.52077029,No.U23B20131). （52077029,U23B20131）
