Evaluation of Load Restoration in Smart Shedding Scheme for Genset in a Microgrid

In this paper, a smart load shedding scheme with a new criterion for a faster load restoration is tested against a genset stalling scenario. Simulation results are presented to prove the concept behind the criterion, which is based on the fundamentals that explain the causes of genset stalling due to abrupt load steps in a microgrid. The criterion allows disconnection times for shed loads to go from a couple of seconds to less than a second compared to previous smart shedding schemes. Thus, it reduces the duration of disturbances in the microgrid and makes place to new possibilities in terms of the load shedding system design. Obtained results show that is possible to improve the restoration time in the smart load shedding scheme for genset in a microgrid.