LIBRARY
Optimal Capacity and Placement of Microgrids for Resiliency Enhancement of Distribution Networks Under Extreme Weather Events
![microgrid model](https://cpes.vt.edu/modules/library/img/nuggets/2020/image-3791-0-0.png)
 Microgrids consist of different distributed energy resources (DERs), which can be distributed generation systems (DGs) and/or electric energy storage (ESS) systems, as well as end-users of electricity and/or heat, as shown in Fig. 1. A microgrid can work in either a grid-connected mode or an islanded mode. In the islanded mode, DERs within the microgrid feed only the microgrid's loads; while in the grid-connected mode, they can also contribute to serving grid loads. In the case of undergoing an extreme event, islanded mi- crogrids can temporarily connect to the grid to take part in restoring its critical loads while serving their own end-users.
![resilience curve](https://cpes.vt.edu/modules/library/img/nuggets/2020/image-3791-0-1.png)