现代电力2025，Vol.42Issue(5)：867-877,中插1-中插4,15.DOI:10.19725/j.cnki.1007-2322.2023.0341
局部量测场景下的中压配电网分布式无功电压优化控制
Optimal Control of Reactive Power and Voltage of Medium Voltage Distribution Network in Partial Measurement Scenarios
摘要
Abstract
In this paper,we propose a distributed photovoltaic participation strategy for voltage optimization control of medium voltage distribution networks,addressing the voltage off-limit issues in distribution networks with distributed photovoltaics and the incomplete measurement scenarios of distribution networks.A voltage optimization control model is constructed to minimize transmission losses in a distribution network with distributed photovoltaic.The study proceeds with a distributed solution algorithm that utilizes limited communication and information exchange among neighboring nodes.By leveraging the measurement information from nodes hosting distributed photovoltaic and key positions,as well as facilitating the communication between adjacent nodes,an improved dynamic projected primal-dual distributed algorithm is proposed to solve the optimization control model.The convergence of the algorithm for convex optimization problems is mathematically analyzed and proven.Subsequently,a set of voltage control strategies for the substation coordinated with distributed photovoltaics is proposed,taking the possibility of insufficient reactive power capacity in distributed photovoltaics into account.Finally,the effectiveness of the proposed algorithm is demonstrated using the IEEE 33-test system as an example.The results demonstrate that the algorithm is capable of effectively solving voltage violation issues in distribution networks and it significantly reduces transmission losses to a level comparable with the optimal solution.关键词
中压配电网/分布式光伏/电压控制/自适应步长/分布式优化算法/相邻通信Key words
medium voltage distribution system/distributed photovoltaic/voltage control/adaptive step size/distributed optimization algorithm/neighboring communication分类
信息技术与安全科学引用本文复制引用
张永杰,林凌雪..局部量测场景下的中压配电网分布式无功电压优化控制[J].现代电力,2025,42(5):867-877,中插1-中插4,15.基金项目
直流输电技术国家重点实验室开放基金项目(SKLHVDC-2022-KF-01) （SKLHVDC-2022-KF-01）
国家自然科学基金企业创新发展联合基金集成项目(新型电力系统背景下的大电网异步分区规划与控制研究(U22B6007)).Project Supported by National Key Laboratory of DC Power Transmission Technology Development Fund(SKLHVDC-2022-KF-01) （新型电力系统背景下的大电网异步分区规划与控制研究(U22B6007）
Integrated Project of National Natural Science Foundation and Enterprise Innovation Development Joint Fund(Research on Asynchronous Partition Planning and Control of Large Power Grid under the Background of New Power System(U22B6007)). （Research on Asynchronous Partition Planning and Control of Large Power Grid under the Background of New Power System(U22B6007）
