电测与仪表2024，Vol.61Issue(4)：41-47,7.DOI:10.19753/j.issn1001-1390.2024.04.007
基于线性化潮流模型的配电网电压无功控制策略
Volt/Var control strategy of distribution network based on linearized power flow model
摘要
Abstract
The existing Volt/Var control models are mainly solved based on second-order conic relaxation,which cannot take the voltage deviation as the objective function and take up a lot of CPU time.In this paper,the Volt/Var control strategy of distribution network based on linearized power flow model is proposed.Based on the branch power flow equa-tion,the Volt/Var control model is built considering various regulating devices such as on load tap changer(OLTC),ca-pacitor bank(CB)and photovoltaic(PV).And the integer variables in the model are relaxed to continuous variables in order to construct a second-order conic programming(SOCP).Then,the power flow equations are expanded based on the benchmark state calculated by SOCP in order to linearize the model.The linearized power flow(LPF)is solved to mini-mize voltage deviation and restore the continuous variables to integer variables.The simulation on improved IEEE 33-bus distribution network system shows that the proposed LPF model has higher accuracy and fast solving speed,which is suit-able for real time Volt/Var control in distribution network.关键词
主动配电网/电压无功控制/二阶锥松弛/线性化潮流/支路潮流模型Key words
active distribution network/Volt/Var control/second-order conic relaxation/linearized power flow/branch power flow model分类
信息技术与安全科学引用本文复制引用
杜晓东,李晓明,韩思宁,李安昌,詹祥澎,杨军..基于线性化潮流模型的配电网电压无功控制策略[J].电测与仪表,2024,61(4):41-47,7.基金项目
国网河北省电力有限公司科技项目(kjcb2020-004) （kjcb2020-004）
国家自然科学基金资助项目(51977154) （51977154）
