Reactive power control of a wind farm through different control algorithms

Electrical systems endowed with variable generating units will dominate the electrical landscape in the near future. These types of generating units will bring new opportunities to utilities, companies and customers, but they will also bring new problems to electrical companies. As wind power generation is one of the most important renewable energy sources, because its production is environmentally clean, it is important to achieve suitable locations for new wind farms. So, to evaluate their impact on the electrical network it is necessary to develop an accurate wind farm model for the network analysis program. This paper presents the model of a wind farm made up exclusively of double fed induction machines and the control algorithm that has been developed in order to maintain the reactive power set point fixed by the electric company. Consequently, the voltage levels of the network that the wind farm is connected to, would also be controlled