Abstract
In order to reduce investment and maintenance cost, the optimal sizing of distributed energy in AC/DC hybrid stand-alone micro-grid is studied in this paper. The optimization model is built and economics, power supply reliability and environmental protection are taken into account. By means of the modified artificial bee colony algorithm, the optimal sizing method is obtained. Finally, the feasibility of method is verified by calculating example analysis. By comparing the optimal sizing results of three different micro-grid configurations, hybrid AC/DC micro-grid is proved to be superior to traditional micro-grid. Furthermore, the modified ABC is more suitable for solving optimization problems because of the higher convergence precision.
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