Design a Position Control of the Blade Pitch Angle for Variable Speed Wind Turbine Generators

Abstract

Variable speed wind turbine generators are more powerful than constantspeed turbines. However the unstable wind speed causes the variable speed machine to have variable voltage and frequency. The quality of power can be improved if a suitable control technique is usedin the system, the fluctuating wind generator output needs to be controlled, for this reason one needs to study the dynamic characteristics of the combined wind generator system. Better control design can be designed for more dynamic performance. Blade pitch control of the fan is discussed here in this research by using rotarypotentiometers for position control and some tests is done in control laboratory as a simulation of the position control.