电力工程技术2026，Vol.45Issue(1)：3-12,10.DOI:10.12158/j.2096-3203.2026.01.001
新能源接入电力系统分区惯量估计及虚拟惯量配置
Regional inertia estimation and virtual inertia configuration of new energy connected power system
摘要
Abstract
The increasing integration of renewable energy sources has caused spatially and temporally uneven inertia distribution in power systems.This paper proposes a regional inertia estimation and virtual inertia configuration method using dynamic mode decomposition(DMD).A regional equivalent inertia model is established based on inertia estimation theory for renewable-penetrated power systems.The power system is partitioned via spectral clustering,and frequency measurement nodes are selected according to Pearson correlation coefficients of regional nodes.Regional inertia is then estimated through the DMD method.Critical regional inertia requirements are calculated based on frequency security constraints to configure virtual inertia for renewable energy and energy storage systems.An improved IEEE 10-machine 39-node model with wind-storage systems is implemented in PSCAD for validation.Simulation results demonstrate that the proposed method achieves regional inertia estimation with errors below 5%.The online virtual inertia configuration strategy for wind turbines and energy storage systems effectively prevents frequency violations and enhances frequency security and stability.关键词
新能源/分区惯量/惯量估计/虚拟惯量/惯量配置/动态模式分解(DMD)Key words
new energy/regional inertia/inertia estimation/virtual inertia/inertia configuration/dynamic mode decomposition(DMD)分类
信息技术与安全科学引用本文复制引用
吴仁杰,江琴,李保宏,刘天琪..新能源接入电力系统分区惯量估计及虚拟惯量配置[J].电力工程技术,2026,45(1):3-12,10.基金项目
四川省科技计划资助项目(2024NSFSC0865) （2024NSFSC0865）
