电气传动2025，Vol.55Issue(4)：41-47,55,8.DOI:10.19457/j.1001-2095.dqcd26129
基于支路功率灵敏度分析的柔性配电网智能软开关优化配置
Optimal Configuration of SOP in Flexible Distribution Network Based on Branch Power Sensitivity Analysis
摘要
Abstract
While a large number of distributed generator(DG)keep penetrating into distribution networks,the problems such as voltage violation and network power congestion become more and more serious.Soft open point(SOP)can quickly achieve flexible interconnection and accurate power flow control,effectively addressing the challenges caused by the integration of DG.Considering the installation priority of SOP on branches where active power is heavily affected by loads,an intelligent soft switch site slection and capacity determination strategy based on branch active power sensitivity analysis was proposed.Firstly,a load growth factor was introduced into the power flow equations,and the branch power sensitivity,which reflects time series variation of DG output and load,was theoretically derived.The selection of SOP sites was then ranked according to this sensitivity value.Secondly,the model of SOP site slection and capacity optimization was established,which was solved using a second-order cone algorithm.Finally,validation was conducted on the improved IEEE 33 node distribution system.Results show that the proposed method can affectively save annual comprehensive operation cost of distribution networks,reduce system network losses and improve node voltage deviation.关键词
柔性配电网/支路功率灵敏度/智能软开关/选址定容/二阶锥规划Key words
flexible distribution network/branch power sensitivity/soft open point(SOP)/site selection and capacity determination/second-order cone planning分类
动力与电气工程引用本文复制引用
孙嘉,韩顺天,倪良华,吕干云..基于支路功率灵敏度分析的柔性配电网智能软开关优化配置[J].电气传动,2025,55(4):41-47,55,8.基金项目
江苏"六大人才高峰"创新团队项目(2019-TD-XNY004) （2019-TD-XNY004）
江苏省高等学校自然科学研究重大项目(2019052) （2019052）
