Operation optimization stand-alone microgrid using firefly algorithm considering lifetime characteristics of battery

Renewable energy sources and batteries are the important components to supply power on the stand-alone microgrid. Optimization of the stand-alone microgrid is needed to get the lowest energy generation const. The saving generation cost can be Renewable energy sources and batteries is an important component of the power supply stand-alone microgrid. Optimization of the stand-alone microgrid is needed to minimize energy generation cost. Saving cost can be obtained by choosing renewable energy sources as the power generation, such as photovoltaic (PV) and wind turbine (WT). In this paper, microgrid using PV, WT, and batteries as the main power supply of stand-alone microgrid. The diesel generator is used to supply power when PV, WT, and batteries can't supply power to load. Energy storage system management is the other option to optimization operation system. So, the life loss cost battery can be minimized. Based on simulation result, operation optimization using firefly algorithm (FA) can minimize generation cost and life loss cost battery.