Hourly Dispatch Considering the Intermittent Power Plant Generation
In this work, it is proposed the development of a methodology for the hourly dispatch of electricity produced by intermittent sources of electric, wind and solar generation. To allow consideration of wind and solar sources, the load flow equations consider the addition of the time variable that represents the considered time, and an objective function is created that minimizes generation costs. sources, as well as the presence of other generation sources in the same system, and the limitations on the quality of electricity. Mathematical modeling is performed using AMPL (Modeling Language for Mathematical Programming) software, using Knitro software as a solver for the problem. Simulations are performed to minimize generation costs and active losses for each hour of the day, and at the end of 24 hours, the sum of the amount of energy generated and the generation costs are performed. As a database of wind and solar generation, according to the time of day, data from real generator sets, located in the Northeast region of Brazil, are used and to validate the proposed model, the simulations are performed using IEEE electrical systems.