Enhancing Dynamic Voltage Stability in Resilient Microgrids Using FACTS Devices

Microgrids (MGs) have emerged throughout the world as major means of integrating a variety distributed energy resource (DER) technologies into distribution system. These DER are mostly coupled through electronic power converters (EPCs). This fact has created new operation challenges these converter-interfaced DERs could compromise MG stability, reliability, and resilience margins. On other hand, induction motor-type loads (IMs) dynamic with greatest incidence in grids. Air conditioning (A/C) type IMs among their components. demand considerable amounts reactive for correct operation. In particular, when there disturbances MGs high penetration types loads, phenomenon fault-induced delay voltage recovery (FIDVR) occurs. causes problems stability (DVS) due to deficit inability supply generator park composing MG, which lead collapse. To face issues, this work proposes an approach incorporate flexible ac transmission system (FACTS) controllers, such SVC DSTATCOM, grid resources improving microgrid stability. The proposal includes design, optimal location, modeling FACTS devices aiming at enhancing resilience. For validation developed methodology, test reported literature real Galapagos Islands Ecuador been used. results demonstrated superiority DSTATCOM over DVS, FIDVR mitigation, consequently operational