부산대학교 도서관

Distributed generation renewable energy sources are utilized for off-grid energy solutions in remote communities that have no access to the availability of electricity due to the costs that are associated with the extension of utilitiry network to such areas. The grid-connected microgrid system is universally accepted to cope with the consistent increase in the power demand due to several advantages. The power management of a grid-connected wind energy system is presented in this research work owing to social-economic and environmental benefits. The paper presents a grid-connected wind farm that consists of three wind turbines and other auxiliaries. Energy management of the wind energy system is utilized for accomplishing the smooth transfer of power between the grid and the microgrid system for a stable operation of the wind energy system. The connection of the wind energy system to the utility grid is through a breaker that is opened or closed according to the status of the microgrid system. The MATLAB/SIMULINK/SIMSCAPE/POWER SYSTEM tool box is used in the study to model the proposed microgrid systems and load demands. The outcomes of the study show that the proposed microgrid system can sustain the stable operation utilizing the power management strategy to ease overloading on the turbines of the wind farm. The results provide the pleliminary guidelines for achieving sustainable energy goal and planning of the optimal power system.