Pitch Control Mechanism in Various Type of Vertical Axis Wind Turbines: A Review

Purpose Due to rising interest in wind energy harvesting offshore as well as in the urban environment, vertical axis wind turbines (VAWTs) have recently received renewed interest. Their omnidirectional ability makes them a very fascinating choice for use with the frequently varying wind directions. Therefore, the main concern is reducing vibration of the turbine blade as well as wind tower, self-starting at low wind speed, and stability issues at very high wind speed for VAWT. Methods In this paper presents a detailed overview of various pitch control configurations in VAWT to avoid vibration, self-starting problem w.r.t. wind speed. Conclusion Various research work carried out in this field has been studied critically and according to the number of blades choose effective pitch control mechanism to control the vibration and rotation speed of wind turbine.