现代电力2026，Vol.43Issue(4)：699-708,中插13-中插14,12.DOI:10.19725/j.cnki.1007-2322.2024.0045
分布式光伏发电系统广泛接入配电网的动态等值建模分析
Dynamic Equivalent Modeling Analysis of Distributed Photovoltaic Power Generation Systems Widely Connected to Distribution Networks
摘要
Abstract
As the penetration of distributed PV power systems continues to increase,the dynamic characteristics of the distribution network are jointly dominated by loads and distributed PV.A dynamic equivalence method for the distribution network that integrates the dynamic characteristics of loads and distributed PV power systems is proposed to provide rapid and reliable simulation data support on the grid side.The first step in establishing a generalized load model for the distribution network involves connecting the electromagnetic transient model of PV,which takes the phase-locked loop control link into account,to the virtual load bus of the integrated load model.Then,simulation experiments are carried out on the MATLAB/Simulink platform to determine the key parameters in the generalized load model by using the parameter trajectory sensitivity analysis method.Subsequently,the distribution network equivalence model is obtained based on the parameter identification method.The calculation results indicate that in comparison to the traditional load modeling approaches,the proposed method offers a more precise description of the dynamic characteristics of the distribution network following the access to a high proportion of distributed PV power generation systems.This provides an effective theoretical basis for the operation planning of the power grid.关键词
光伏发电/配电网/动态等值建模/轨迹灵敏度/参数辨识Key words
photovoltaic power generation/distribution network/dynamic equivalence modeling/trajectory sensitivity/parameter identification分类
信息技术与安全科学引用本文复制引用
杨秀,唐乾尧,顾丹珍,冯煜尧..分布式光伏发电系统广泛接入配电网的动态等值建模分析[J].现代电力,2026,43(4):699-708,中插13-中插14,12.基金项目
国家自然科学基金项目(52177098). Project Supported by National Natural Science Foundation of China(52177098). （52177098）
