Prospects of wind energy injection in the Brazilian national interconnected system and impacts analysis through a quasi-steady power flow

Abstract

There is no doubt that the wind was the renewable source of energy that had the most significant growth during the last five years, and more importantly, the wind power source in Brazil has always been the cheapest and most competitive of all the others, so it is worth saying that wind have never been so well used. The wind energy generation in Brazil is hugely getting stronger, mostly in Northeast region where for the first-time energy auctions trough hydroelectric has been surpassed wind ones. Besides, there are still those who want to benefit from this significant advance, making Brazil the first country to collect royalties from the wind. In this paper a reviewed about Brazilian wind energy scenario and prospects will be done, enumerating the main impacts caused by this kind of power injection in a static analysis. In addition, a Quasi-Steady Power Flow (QSPF) will be simulated to show the impacts of loss, and voltage fluctuation created by the intermittence of wind resource. Numerical evaluation was performed in IEEE-30 bus benchmark system. Computer results, demonstrated the needing of control to make electrical variations smoothly on different periods of the day.