现代电力2026，Vol.43Issue(4)：625-635,11.DOI:10.19725/j.cnki.1007-2322.2024.0105
基于控制输入选优方案的低压配网电压越限抑制方法
A Voltage Violation Mitigation Method for Low-voltage Distribution Networks Based on Optimal Selection of Control Inputs
摘要
Abstract
With the penetration of distributed generation(DG),especially photovoltaic,into distribution networks,the issue of node voltage violation has become increasingly prominent.The stochastic nature of distributed generation and load uncertainty may result in uncertain power flow in distribution feeders,leading to node voltage collapse or overvoltage.In addition,multiple voltage regulators usually exist in complex distribution networks,while DG-based voltage regulation measures may conflict with traditional voltage regulators.Moreover,the traditional local control method has the disadvantages of high cost,redundant control operations,and limited support for the maximum utilization of new energy sources.Considering the aforementioned factors,in this paper,we propose a voltage violation mitigation approach for low-voltage distribution networks based on optimal control input selection.Through the synergy between distributed energy storage and DG,the supply-demand balance and flexibility level of active control within the feeder are improved,achieving simultaneous control of local node voltages.To evaluate the impact of any control signal on the voltages at all the nodes,the concepts of the comprehensive influence factor and the generalized electrical distance are proposed.Based on the comprehensive influence factor,a two-stage control input selection algorithm is introduced.In the first stage,the algorithm screens out the total control set that is effective for all the violated node voltages using node voltage iteration.On this basis,in the second stage,the algorithm screens out the redundant control signals therein,and ultimately realizes mitigation of voltage violations in the whole network with the smallest cost and the simplest control operation.The effectiveness of the proposed method is verified through simulations conducted on the modified IEEE 123-node distribution network.关键词
分布式发电/电压越限/控制输入选优/低压配网Key words
distributed generation/voltage violation/optimal selection of control input/low-voltage distribution network分类
信息技术与安全科学引用本文复制引用
雷妤航,张小庆,周洋,黄孙华,熊林云,秋泽楷,刘瑶..基于控制输入选优方案的低压配网电压越限抑制方法[J].现代电力,2026,43(4):625-635,11.基金项目
国家自然科学基金项目(52007015) （52007015）
湖南省教育厅优秀青年项目(23B0297). Project Supported by National Natural Science Foundation of China(52007015) （23B0297）
Excellent Youth Program of Hunan Provincial Department of Education(23B0297). （23B0297）
