A Trajectory Sensitivity Index Based Approach to Accelerate Post-Fault Voltage Recovery in Microgrid

In a power system, fast voltage recovery plays an important role to keep the distributed generator (DG) connected to the system. Specially, it is more challenging in an industrial microgrid, where there is a large number of motors operating simultaneously. In this regard, placement of dynamic VAR sources can facilitate faster voltage recovery under post-fault scenarios. In this paper, trajectory sensitivity index (TSI) is used for finding optimal location of static synchronous compensator (STATCOM) for accelerating fault induced delayed voltage recovery (FIDVR). Simulation results demonstrate that STATCOM placement based on TSI ranking can quickly recover the post-fault voltage of DG units in the system.