Power-Heat Generation Sources Planning in Microgrids to Enhance Resilience against Islanding due to Natural Disasters

Natural disasters can cause the long inaccessibility of microgrids to main power/gas networks. In this paper, the combination and size of different power/heat generation sources including fuel-based distributed generation (DG), combined heat and power (CHP), electrical to heat (ETH) unit, thermal energy storage (TES), electrical energy storage (EES), photovoltaic (PV) and wind turbine (WT) units are optimized using a stochastic multi-objective model. The proposed model is formulated to minimize the planning cost of power/heat sources while maximizing the system resilience through minimization of the expected energies not served during islanding conditions due to natural disasters. To solve the model, e-constraint method is implemented. The impact of DR program and the vulnerability of PV against natural disasters are also investigated on the planning cost of power/heat sources and system resilience.