Impact of the wind generator on the power flow in the electric grid

Abstract

When wind turbines are installed into the electric grid, the power quality is affected. Today, strict installation recommendations often prevail due to a lack of knowledge on this subject. Consequently, it is important to predict the impact of wind turbines on the electric grid before the turbines are installed. The majority of wind farms are using variable speed wind turbines equipped with doubly-fed induction generators (DFIG) due to their advantages over other wind turbine generators. Therefore, the analysis of wind power dynamics with the DFIG wind turbines has become a very important research issue. In this paper, we will study the behaviour of the power flow with wind turbine on a IEEE 14 bus system, wind turbine is connected at high voltage buses to meet the increased load demand. Power flows, nodal voltage active and reactive power losses of the power network are obtained by iterative solutions using PSAT (Power System Analysis Toolbox) and also the time domain simulation.