高电压技术2024，Vol.50Issue(3)：1225-1234,10.DOI:10.13336/j.1003-6520.hve.20231008
基于光伏逆变器调节的中低压配电网电压分层协调控制策略
Hierarchical Voltage Coordination Control Strategy of Middle-and Low-voltage Level Power Distribution Network Based on Photovoltaic Inverter Adjustments
摘要
Abstract
In response to the voltage quality issues caused by the high proportion of distributed photovoltaic integration into the distribution network,this paper proposes a voltage layered coordinated control strategy for medium-and low-voltage distribution networks based on photovoltaic inverter regulation.Firstly,the voltage control methods of active dis-tribution networks were analyzed,and a voltage interval partition control method for photovoltaic inverters was proposed.Then,a dual layer control architecture for medium-and low-voltage distribution networks is constructed,and an opti-mized control model is constructed with the goals of minimizing network losses,voltage deviations,and maximizing distributed power consumption.Finally,the IEEE 33 node example and a practical distribution network example were used to validate the hierarchical control strategy of the active distribution network.The IEEE 33 node example shows that the optimization method can be adopted to reduce the overall loss of the distribution network by 3.79%and the voltage deviation rate by 27.29%.The computation results show that the optimization method can be adopted to reduce the overall loss of the distribution network by 36.33%,reduce the voltage deviation rate by 62.59%,and effectively improve the photovoltaic absorption and balance ability,ensuring the safe and stable operation of the active distribution network.关键词
配电网/高比例分布式光伏/逆变器调节/电压分区控制/分层协调控制Key words
distribution network/high proportion distributed photovoltaic/inverter regulation/voltage zoning control/layered coordination control引用本文复制引用
康田园,刘科研,李昭..基于光伏逆变器调节的中低压配电网电压分层协调控制策略[J].高电压技术,2024,50(3):1225-1234,10.基金项目
国家电网有限公司总部科技项目(计及大规模分布式电源接入的配电网运行机理、互动模型与形态演化研究)(5400-202155464A-0-0-00). Project supported by Science and Technology Project of SGCC(Research on Operation Mechanism,Interaction Model and Morphological Evolutionism of Distribution Network Considering Large-scale Distributed Generations Integration)(5400-202155464A-0-0-00). （计及大规模分布式电源接入的配电网运行机理、互动模型与形态演化研究）
