Modelling and Optimisation of Wind Energy Systems

This paper presents the study of methodology for calculation the optimum size of a Wind system. A Long term data of wind speed for every hour of the day were used. These data were used to calculate the average power generated by a wind turbine for every hour of a typical day in a month. A load of a typical house in south of Algeria( desert area) was used as a load demand of the system. For a given load and a mixed multiple-criteria integer programming problem, the types and sizes of wind turbine generators (WTG) was calculated based on the minimum cost of system. In our research, we investigated the genetic algorithm (GA) for optimally sizing a wind power system. We define that the objective function is the total cost, where the total cost is the sum of initial cost, an operation cost, and a maintenance cost. We determine an optimal configuration of wind generating systems, where total cost is more optimal using GA. A computer program has been developed to size system components in order to match the load of the site in the most cost. A cost of electricity, an overall system cost is also calculated for each configuration. The study was performed using a graphical user interface programmed in MATLAB