Influence of Strong Wind Gust on Transient Stability of Power System with FSWTGs

Abstract

This paper studies the influence of a strong gust wind on the transient stability of a power system with Fixed Speed Wind Turbine Generators (FSWTGs). The IEEE first benchmark model (IEEE-FBM) for Subsynchronous Resonance (SSR) studies has been adopted and modified to perform the study. The influence of wind gust duration and magnitude on transient stability of the system is investigated using Equal Area Criterion and time domain simulations. The influence of the pitch angle controller of FSWTGs is also studied. Simulation results showed that the system under strong wind gusts with higher magnitude and shorter duration becomes unstable. In addition, it shows that including the model of pitch angle controller in FSWTGs modelling improves the transient stability of the system.