Abstract:
Frequency adjustment and protection of a wind
turbine due to wind gust is a salient aspect of the grid-tied
wind farm. Both of them require conserving system stability.
This paper presents an investigation of the converter based
frequency adjusting method and wind turbine protection. A
grid-tied wind farm model using the Doubly Fed Induction
Generator in MATLAB is used. To regulate the active power
output, synchronization between wind speed and wind turbine
speed is adjusted. Thus, wind farm operated at grid frequency
and maximize turbine output. The control strategy of the
converter based frequency synchronization of a grid-tied wind
farm also includes protection subsystem. The protection
system executed by receiving information from the logical
block implemented in the wind farm model. It provides wind
turbine protection by terminating wind turbine from a grid in
abnormal wind conditions. Simulation result validates the
analysis and control methods.
