Low-frequency oscillation suppression methods for doubly fed induction generator

The demand for environmental protection has led to a continuous upsurge in the global capacity of wind power. However, in the process of gradually replacing traditional synchronous generators, the low-frequency oscillation problem has gradually come to the forefront and become an important factor affecting the stability of the power system, attracting the attention of many researchers. Especially in the field of Doubly Fed Induction Generators, research on the suppression of low-frequency oscillation has become a hot-spot in recent years. In this paper, several typical suppression strategies based on Power System Stabilizers are introduced. Additionally, this paper discusses recent adaptive suppression strategies for wind turbines and methods of designing new controllers. Furthermore, various low-frequency oscillation suppression methods and their effects are compared and analyzed. Finally, the paper summarizes and anticipates the development of low-frequency oscillation suppression.