| The wind energy industry has undergone a dramatic transformation during the last decade. The total operating wind power capacity in the world has increased greatly. As more and more attention is paid to the increase in both the size and number of wind farms, a number of problems should be investigated in more detail. The voltage stability problem primarily focuses on the reactive power management that affects voltage stability and transmission losses. Wind power farm installations that have the potential to displace a large percentage of fossil-fuel generation must be designed to avoid unacceptable frequency and voltage disturbances due to fluctuations in the wind power farm output.;The focus of this research is on the modeling of wind farms and the issues related to the interconnection of wind farms with the utility grid. Voltage stability problems are investigated for both strong and weak interconnections. Furthermore, the model and control of the Superconducting Magnetic Energy Storage (SMES) system is introduced into the wind farms to improve the power quality of wind farms. The study is conducted firstly, on a single wind energy conversion system, followed by addition of the issues of voltage stability and VAr compensation, and finally the investigation of the impact of wind farms on power quality are discussed in detail. |
