内蒙古电力技术2024，Vol.42Issue(4)：93-100,8.DOI:10.19929/j.cnki.nmgdljs.2024.0059
基于高斯混合模型的配电网分布式光伏接入影响量化分析方法
Quantitative Analysis Method for Impact of Distributed Photovoltaic Access in Distribution Networks Based on Gaussian Mixture Model
摘要
Abstract
Aiming at the problem of difficulty in accurately assessing the impact of a large number of PV connected to the grid on the distribution network,a method of quantitative analysis for the impact of distributed PV access on the distribution network based on Gaussian mixture model is proposed in this paper.Firstly,based on the historical data of node load and solar irradiation intensity in distribution station area,an uncertainty model of the node injection power in the distribution station area is established based on the Gaussian mixture model theory,and the probability density function of the node voltage amplitude,branch circuit active power flow and other electrical quantities in the distribution station area is calculated by the linearized power flow method.Secondly,the quantitative evaluation index system for the impact of distributed PV access is established,and the quantitative evaluation method of distributed PV access impact is proposed.Finally,the method proposed in this paper is verified based on the case analysis.关键词
配电网/分布式光伏/高斯混合模型/节点负荷/风险指标Key words
distribution grid/distributed photovoltaic/Gaussian mixture model/node load/risk indicators分类
信息技术与安全科学引用本文复制引用
王立强,刘鸿清,丛雨..基于高斯混合模型的配电网分布式光伏接入影响量化分析方法[J].内蒙古电力技术,2024,42(4):93-100,8.基金项目
内蒙古电力(集团)有限责任公司科技项目"大规模分布式光伏并网振荡风险及预警方法研究"(2023-5-28) （集团）
