Simulation of the integrated energy system for isolated island

Many islands locate along the coast of China, most of them are far away from mainland. Fortunately, the renewable energy resources are abundant around the islands. If the renewable energy can be fully utilized, the sustainable energy supply for the islands can be guaranteed. Hence, this paper provides a solution of the energy supply system for islands. To achieve this objective, this paper established an integrated energy system for isolated island, which consists of wind power generator, photovoltaic power generator, diesel power generator, desalination load, conventional load, power-to-gas and fuel cells. The renewable energy is used as the main power supply source, and the diesel generator is as a secondary emergency supply. For the sake of the stable and consistent operation of the system, a relevant energy control strategy has been designed in this paper, which ensures the system can satisfy the supply of electricity and freshwater.