Multi-objective Optimal Configuration of Isolated Micro-grid with Wind/Photovoltaic/Battery/Diesel

Research on isolated micro-grid is of great significance in solving problems such as remote areas or islands and urban power supply, which can effectively alleviate the increasingly severe electricity shortage problem. To meet the load demand of the micro-grid, an isolated micro-grid system consisting of photovoltaic, wind, diesel, battery, and a three-objective optimization model considering system comprehensive economic cost (CEC), load power shortage probability (LPSP), and pollutant gas missions (PGE) is established. An island was taken as an example to optimize the configuration of the microgrid, and the reliability of the proposed three-objective model was verified. The feasibility of the Improved NSGA-II algorithm (INSGA-II) is verified by comparing with the NSGA-II algorithm. Three representative solution and one compromise solution are selected through simulation. The results showed that INSGA-II achieved a 3.7% reduction in CEC and a 13.5% reduction in PGS, respectively. The isolated micro-grid system model can be applicable to areas with similar climate and conditions.