Flicker contribution of a wind turbine in a stand-alone wind diesel system

To study the impact of aeroelastic aspects of a wind turbine (i.e. tower shadow, wind shear, turbulence, and mechanical vibrations) on the power quality of a wind-diesel system all electrical, mechanical and aerodynamic aspects of the wind turbine must be studied. Moreover, the contribution of the diesel-generator system and its controllers should be considered. This paper, describes how the aerodynamic and mechanical aspects of a wind turbine can be simulated using TurbSim, AeroDyn, and FAST, where the electrical parts of wind turbine, diesel-generator, its controllers, and grid are modelled by Simulink blocks. Simulation results obtained from the model are used to observe the flicker, power, and voltage variations at the wind turbine generator terminals for a turbulent wind, furthermore the effects of grid characteristics and mechanical dynamics on the power quality in a standalone wind-diesel system utilizing a fixed speed wind turbine are studied.