电力系统自动化2025，Vol.49Issue(19)：113-122,10.DOI:10.7500/AEPS20250323003
计及源荷不确定性的直流互联系统概率化阻抗建模与稳定性分析
Probabilistic Impedance Modeling and Stability Analysis of DC Interconnected System Considering Source-Load Uncertainty
摘要
Abstract
A large number of distributed photovoltaic and electric vehicle charging piles access in the multi-terminal DC interconnected system of the distribution network.This results in a high power-electronization and strong uncertainty of the system,which brings serious challenges to the stable operation of the system.To analyze the impact of source-load uncertainty on the stability of the multi-terminal DC interconnected system,this paper proposes a probabilistic impedance modeling method considering the source-load uncertainty.The analysis of the system stability probability is achieved through the starting function fitting based on the moment information.Then the influence of the grid parameters and the control parameters of the power electronic equipment on the probability characteristics of the system stability is analyzed.Finally,the effectiveness of the proposed method is verified by MATLAB/Simulink simulation compared with Monte Carlo method.关键词
配电网/多端直流互联系统/不确定性/概率化阻抗建模/稳定概率/矩信息Key words
distribution network/multi-terminal DC interconnected system/uncertainty/probabilistic impedance modeling/stability probability/moment information引用本文复制引用
陆梓萌,廖玉茗,杨磊,刘文龙,年珩,孔令达..计及源荷不确定性的直流互联系统概率化阻抗建模与稳定性分析[J].电力系统自动化,2025,49(19):113-122,10.基金项目
国家自然科学基金杰出青年基金资助项目(52325702) （52325702）
浙江省自然科学基金资助项目(LY23E070002). This work is supported by National Natural Science Foundation of China(No.52325702)and Zhejiang Provincial Natural Science Foundation of China(No.LY23E070002). （LY23E070002）
