Toward a Resilient Network by Optimal Sizing of Large Scale PV Power Plant in Microgrid-Case Study of Mongolia

Competitive price and eco-friendly operation features make solar photovoltaic (PV) plant a strong candidate for a modern power system's generation mix. Therefore, it has been economically feasible to build PV based microgrids, which can convert current centralized national grids into decentralized segments so that resiliency of grid will improve and line loss will decrease. In this study, we examined integration scenarios of different size of PV plants into Altai Uliastai Energy System (AUES) of Mongolia in order to evaluate the possibility of developing microgrid using current hydropower plant (HPP) and proposed PV plant. Results showed that a PV plant with 10 MW capacity would perform well with HPP and load from energy management point of view. DIGSilent Power Factory has been used for quasi-dynamic simulation.