Optimal operation for diesel generators in small isolated island power system cosidering controllable load

Recently, operational cost for diesel generator such as fossil cost, transport cost, and storage cost are expensive in isolated island. Consequently, renewable energy generation is advanced in the world. Furthermore, all-electric house and electric vehicle carrying a storage battery is increasing. Controllable load in the grid can be installed using all-electric house and electric vehicle carrying a storage battery. In this paper, we propose an optimization approach to determine operational planning of wind generator, photovoltaic facility, diesel generator, and battery energy storage-system. In this optimization method, forecasted output power data of wind generator, photovoltaic facility, and controllable load are assumed to be available for all day which is utilized in operational planning of wind generator, photovoltaic facility, diesel generator, and battery energy storage-system. As the optimization method, genetic algorithm and tabu search are used in this paper.