Short circuit analysis of Type II induction generator and wind farm

With recent proliferation of wind farms over the world, it has become important to study the short circuit characteristics of different types of wind turbine generators (WTGs). This paper describes the short circuit characteristics of a Type-II WTG, and a wind farm comprised of this type of generators. A commercial time-domain software is used to model the WTG and the wind farm. The machine model is validated against field data, thus increasing the credibility of the results. The difference between the short circuit responses of Type-I and Type-II WTGs is described. Response of an actual wind farm with Type II WTGs to faults outside and inside the farm is documented and analyzed.