Stability improvement of wind farms with fixed speed turbine generators using breaking resistors

Abstract

This paper investigates the stability improvement ofa grid connectedfixed speed wind farms following disturbances such as faults , using braking resistors along with reactive power compensation devices. As windjluctuations and grid disturbances can cause significant shaft oscillations, their interaction effects have been taken into account by employing a two-mass shaft model. The stability performance of the system is examined by simulation studies in the DigS/LENT environment under different levels of compensation, delay lime of circuit breakers following the gird fault conditions. Computer simulation results show the combination of braking resistors and reactive compensation can significantly improve the stability ofgrid connected wind turbines.

Real time implementation of interval type-2 fuzzy logic based damping controller for wind integrated power system

“…Usually, a pitch-angle controller is employed to limit the aerodynamic power at rated level which in addition, can also improve the transient stability of the wind integrated power system (Jauch et al, 2007;Thet and Saitoh, 2009). According to some reports, Breaking Resistors (BR) can be employed for stabilization of induction generator (Causebrook et al, 2007;Ghazi and Aliabadi, 2010). Recently, Superconducting Magnetic Energy System (SMES) has also been employed for grid connected wind generator stabilization (Sheikh et al, 2012).…”

Enhancement of Transient Stability in a Grid-Connected Wind Power Plant Utilizing PI-FL Controller

“…According to some reports, Braking Resistors (BR) can be employed for stabilization of induction generator (A. Causebrook, 2007;R. Ghazi, 2010).…”