基于汇集接入与分区治理的分布式光伏接入配电网优化策略  

Optimization Strategy for Distributed Photovoltaic Integration into Distribution Grids Based on Aggregated Connection and Zoning Governance

作　　者：裘友晖 秦江超 靳鹏宇 杨安馨 付强 Qiu Youhui;Qin Jiangchao;Jin Pengyu;Yang Anxin;Fu Qiang(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电气自动化》2024年第6期18-21,共4页Electrical Automation

摘　　要：随着大规模分布式光伏接入配电网,传统配电网形态正在经历重大变革,给配电网的承载能力与电能质量造成严重影响。为此,提出了一种基于电压稳定系数矩阵的含无功调节的分布式光伏优化接入方式,分区进行配电网电能质量治理。通过潮流雅各比矩阵计算配电网系统的电压稳定系数,再以直流汇集的方式整合强稳定性节点临近分布式光伏,进行含无功-电压调节的并网接入。所提方法通过IEEE-33节点的MATLAB/Simulink进行仿真验证。结果表明,能够有效改善网络电压升高以及谐波问题。With the large-scale integration of distributed photovoltaics into the distribution network,the traditional distribution network forms have undergone significant changes,causing serious impacts on the carrying capacity and power quality of the distribution network.To this end,a distributed photovoltaic optimization access method based on voltage stability coefficient matrix with reactive power regulation was proposed,and the power quality management of the distribution network was carried out in zones.The voltage stability coefficient of the distribution network system was calculated through the Jacobian matrix of the current flow,and then the strong stability nodes near distributed photovoltaics were integrated in the form of DC convergence for grid connection with reactive power voltage regulation.The proposed method was validated through simulation using MATLAB/Simulink on IEEE-33 nodes.The results indicate that it can effectively improve network voltage rise and harmonic problems.

关 键 词：分布式光伏 配电网 电压稳定系数 优化接入方式 无功-电压调节 

分 类 号：TM41[电气工程—电器]