一种配电网开关配置多目标优化模型

A Multi-Objective Optimization Model for Distribution Network Switch Configuration

分段开关与联络开关是配电网的重要组成部分,对多类开关进行联合配置,可使其在故障隔离过程中最大程度提高配电网高效运行。为提升配电网中多类开关配置的自动化程度并考虑其状态成本,文章利用中断成本与多开关运维成本最小化方法建立多目标优化模型,实现开关最佳数量和分布的优化配置;通过考虑中断时间与中断负荷的逻辑关系、开关分布布局分别构建多开关状态中断成本模型、主馈线模型。通过考虑开关投资成本、约束条件以及可靠性要求,提出多开关优化配置的方法。通过IEEE RBTS Bus2系统分别计算手动开关和遥控开关的安装费用和年运维成本,通过设置最大中断时间约束,开关安装数量和中断时间大幅减少。所提方法可有效降低总成本,并在提升配网可靠性的同时提高投资收益。

Section switch and interconnection switch are important parts of distribution network.The multi switch configuration can maximize the efficient operation of distribution network during fault isolation.In order to improve the automation degree of multi switch configuration in distribution network and consider its state cost,this paper establishes a multi-objective optimization model by minimizing interruption cost and multi switch operation and maintenance cost,and realizes the optimal number and distribution of switches.By considering the logic relationship between interruption time and interruption load and switch distribution layout,the multi switch state interruption cost model and main feeder model are constructed respectively.Considering the switch investment cost,constraints and reliability requirements,a multi switch optimal configuration method is proposed.Through IEEE RBTS Bus2 system,the installation cost and annual operation and maintenance cost of manual switch and remote control switch are calculated respectively.Through setting the maximum interruption time constraint,the number of switch installation and interruption time are greatly reduced.The proposed method can not only effectively reduce the investment cost,but also improve the reliability of distribution network and maximize the investment income.