浙江电力2026，Vol.45Issue(1)：10-22,13.DOI:10.19585/j.zjdl.202601002
高比例新能源电力系统频率测量点选取及区域一次调频能力评估
Frequency measurement point selection and regional primary frequency regulation capability assessment in high-penetration renewable energy power systems
摘要
Abstract
The increasing integration of renewable energy sources replacing conventional synchronous generators in power systems has led to weakened system inertia support and reduced primary frequency regulation capability,with growing spatiotemporal dispersion of frequency response.Conventional methods that evaluate the primary frequency regulation capability of individual units using a uniform system frequency exhibit increasing assessment errors,re-sulting in significantly diminished proactive participation of generation units in frequency response.To address these challenges,this paper proposes a novel method for frequency measurement point selection and regional primary fre-quency regulation capability assessment in high-penetration renewable energy power systems.The approach utilizes an improved LeaderRank algorithm to calculate node importance indices and identify critical system nodes as fre-quency measurement points.Frequency response similarity metrics are defined using Spearman's rank correlation coefficients to facilitate system partitioning around these measurement points,with optimal partitioning determined through modularity analysis.New assessment metrics for primary frequency regulation capability of renewable en-ergy units are established,enabling assessment of unit capabilities within each region by integrating frequency mea-surement points with partitioning results.The effectiveness of the proposed method is validated through simulations on a modified IEEE 39-bus test system.关键词
一次调频能力/频率分散性/系统分区/频率测量点Key words
primary frequency regulation capability/frequency dispersion/system partitioning/frequency measure-ment point引用本文复制引用
李东东,姚振飞,姚寅,徐波,杨帆,瞿海保,高文忠..高比例新能源电力系统频率测量点选取及区域一次调频能力评估[J].浙江电力,2026,45(1):10-22,13.基金项目
国家自然科学基金(52377111) （52377111）
国家电网有限公司华东分部科技项目(SGHD0000DKJS2310303) （SGHD0000DKJS2310303）
