Multi time-scale dynamic models for doubly-fed induction generator in DIgSILENT

The size and number of wind turbines are due to rise dramatically. Increasing dependence on wind generation requires suitable dynamic models of doubly-fed induction generator (DFIG) that can be easily deployed in power system studies. This paper presents the multi time-scale dynamic models of DFIG implemented in the power system simulation tool DIgSILENT. The response characteristics of the detailed DFIG models during normal operation of the wind turbine and during transient grid fault events are simulated and analyzed. The simulation results show that the established model is correct and DFIG possesses good dynamic characteristics.