Transient analysis of DFIG wind turbines in multi-machine networks

The investigation and determination of the impact of DFIG wind farms and their controllers on power system transient performance require power system simulation and analysis tools that incorporate both an accurate dynamic model of a DFIG wind turbine and a realistic representation of a power network [1]. This paper investigates the dynamic performance of DFIG wind turbines in multiple machine systems using three different network configurations: (i) connection of the DFIG wind farm to an infinite bus through a two-bus double circuit; (ii) connection of both DFIG wind farm and local synchronous generation to the main grid represented by an equivalent synchronous generator; and (iii) connection of a large DFIG wind farm in a multi-machine network. Results from computer simulations conducted in IPSA are presented and commented. Data used for the simulation models is provided in the Appendix.