Abstract—This paper investigates, using pitch angle control, the performance of a standalone hybrid electric power system of which a 300 KVA diesel generator and a 275 KVA wind turbine generator are the constituent subsystems.  However, fluctuations of wind generator output power due to variable wind speed adversely affect the system operation and thereby quality of power. One of the effects is the system frequency deviations in power system. Therefore, suitable control mechanism has to be in place to address the issue of intermittent nature of wind power before going in for installation of wind farms. In this work, a pitch angle controller is designed using conventional proportional integral (PI) controller and the same is implemented for obtaining constant power from the wind driven induction generator for wind speeds more than the base speed with a view to regulate the system frequency. A comparison is carried of the system frequency deviations with and without the pitch angle controller using simulations through MATLAB/Simulink. The results show improved frequency regulation with pitch angle controller. 

Keywords—Wind turbine generator; pitch angle control; frequency deviations; diesel generator

| DOI: 10.17148/IARJSET.2021.86130