南方电网技术2026，Vol.20Issue(5)：103-110,135,9.DOI:10.13648/j.cnki.issn1674-0629.2026.05.011
基于改进直流潮流的柔性互联配电网新能源承载力快速评估方法
Fast Evaluation Method for New Energy Capacity of Flexible Interconnected Distribution Network Based on Improved DC Power Flow
摘要
Abstract
In order to evaluate the maximum carrying capacity of new energy sources in the existing flexible interconnected distribu-tion network,the original model is usually transformed into a mixed integer second-order cone optimization model.However,the second-order cone relaxation conditions are harsh,the generality is not high,the solution convergence is poor,and the model solution speed is slow,which cannot adapt to the fast evaluation of large-scale complex distribution networks.Therefore,a new energy carry-ing capacity evaluation model based on improved DC power flow algorithm is proposed,which transforms the original nonlinear model into an approximate linear model,improves the solving speed and accuracy of the model,and meets the requirements of rapid evaluation and analysis of new energy carrying capacity of flexible interconnected distribution network.The effectiveness of the proposed method is verified by IEEE 33-node distribution network and 1 000 random simulation examples,and the accuracy and numerical stability of the proposed improved DC power flow algorithm are compared and verified.关键词
新能源承载力/柔性互联配电网/智能软开关/直流潮流/随机模拟Key words
new energy supportability/flexible interconnected distribution network/soft open point/DC power flow/stochastic simulation分类
信息技术与安全科学引用本文复制引用
谢明磊,罗威,曹德发,吕振宇,吴在军..基于改进直流潮流的柔性互联配电网新能源承载力快速评估方法[J].南方电网技术,2026,20(5):103-110,135,9.基金项目
国家自然科学基金资助项目(5157702) （5157702）
中国南方电网有限责任公司科技项目(031400KC23120011). Supported by the National Natural Science Foundation of China(5157702) （031400KC23120011）
the Science and Technology Project of China Southern Power Grid Co.,Ltd.(031400KC23120011). （031400KC23120011）
