Integration of wind power and the impact on power system operation

Wind power is currently the fastest growing energy source in the world. At the end of 2002, more than 31000 MW capacity were installed world wide. Norway is one of the best-situated European countries for using wind power, and several large scale wind farms are given concession. Special focus is needed when integrating large scale wind power. This paper has focused on transient stability and application of different wind turbine technologies. Results from simulations of three different technologies have been presented, and the results show that the responses after faults are very different depending on technology. The induction generator led to problems with regaining a stable operating point after fault, while the two other could continue full operation of the wind farm after the fault had been cleared. When applying intelligent damping algorithms at the individual windmills improved damping of swings in the system can be achieved. Further work will be carried out in order to investigate such control schemes.