Improving distribution system resilience by undergrounding lines and deploying mobile generators
Improving distribution system resilience by undergrounding lines and deploying mobile generators
复制标题
通过埋设线路和部署移动发电机来提高配电系统的弹性
DOI：
10.1016/j.epsr.2022.108804
复制
发表时间：
2023
影响因子：
3.9
通讯作者：
Grijalva, Santiago
中科院分区：
文献类型：
--
作者：
Taheri, Babak;Molzahn, Daniel K.;Grijalva, Santiago
为了提高配电系统的抗灾能力，本文提出了一种随机多周期混合整数线性规划模型，该模型确定在哪里埋下新的配电线路，以及如何协调移动发电机，以便在极端事件期间服务于关键负荷。该模型使用交流潮流方程的线性化DistFlow近似来描述服务恢复过程，以及在每个时间段内用于线路接地决策、开关配置和移动发电机位置的二元变量。该模型还强制实施了配电网的径向配置，并考虑了部署移动发电机所需的运输时间。研究表明，与不考虑移动发电机的情况相比，考虑短期移动发电机部署的长期线路接地决策具有更好的效果。使用扩展版本的IEEE 123节点测试系统，数值模拟表明，将地下配电线路的能力与移动发电机的部署相结合，可以显著提高电力供应对关键负荷的恢复能力。
To improve the resilience of electric distribution systems, this paper proposes a stochastic multi-period mixed-integer linear programming model that determines where to underground new distribution lines and how to coordinate mobile generators in order to serve critical loads during extreme events. The proposed model represents the service restoration process using the linearized DistFlow approximation of the AC power flow equations as well as binary variables for the undergrounding decisions of the lines, the configurations of switches, and the locations of mobile generators during each time period. The model also enforces a radial configuration of the distribution network and considers the transportation times needed to deploy the mobile generators. It is shown that long-term line undergrounding decisions which are cognizant of short-term mobile generator deployments yield superior results relative to undergrounding decisions made without considering mobile generators. Using an extended version of the IEEE 123-bus test system, numerical simulations show that combining the ability to underground distribution lines with the deployment of mobile generators can significantly improve the resilience of the power supply to critical loads.