Background: With the large-scale Doubly Fed Induction Generator (DFIG) wind turbine
integrated into the power system, the DFIG inertia response of the wind turbine should be provided.
Also, the frequency response should be similar to the conventional generation technologies. This paper
investigated the influence of frequency response term and wind speed conditions on system frequency
Methods: The specific operating conditions of four control strategies, including inertia control,
droop control, over speed control and pitch angle control were researched in this paper. Multi-factor
coordinated frequency control strategy of DFIG wind turbine was established based on the above researches.
The strategy was composed of wind speed ranging from low to high.
Results: According to the simulation results, the DFIG wind turbine, which was based on multifactor
coordinated frequency control strategy, could respond to the system’s frequency change of
power grid, effectively.
Conclusion: It helps system frequency return to stable states better and faster than DFIG wind turbine
and also could reduce the fluctuation of system frequency.