A Stochastic Programing of Islanding Microgrid in the Presence of the Hydrogen Storage System and Demand Response Program

Microgrid (MG) is one of the new topics in distribution networks in which electrical energy is locally supplied with distributed energy resources at the low voltage system. In this paper, islanding MG includes wind turbine and photovoltaic systems as renewable energy sources. Moreover, due to unavailability of power grid, the MG benefits energy storage batteries. Therefore, this paper proposes a new energy management strategy (EMS) for MG in islanding mode using the hydrogen storage system (HSS) which includes electrolyzer, hydrogen tanks and fuel cell (FC) in the presence of demand response program (DRP). The proposed EMS is based on the optimal operation of energy sources of MG with the objective of minimizing operating costs of batteries, HSS and the costs associated with excess and undelivered energy. Also, the uncertainties of demand, produced power of wind turbine and photovoltaic systems are modeled with scenario approach. Moreover, DRP is proposed with the objective of MG load management and flattening the load curve and thus reducing the operation cost. The proposed model is been simulated on a MG using GAMS software and the results show that by using HSS and DRP, the operation cost of MG in islanding mode is reduced.