Development of a Drive-rod Unified Variable Pitch Control Mechanism for Small-scale Horizontal Wind Turbines

Authors

Ayman I. Bakry, Mechanical Power Engineering Department, Faculty of Engineering, Tanta University, Tanta, 31521, Egypt.
Mohamed Elfouly, Mechanical Power Engineering Department, Faculty of Engineering, Tanta University, Tanta, 31521, EgyptFollow
Omar Mehrez, Mechanical Power Engineering Department, Faculty of Engineering, Tanta University, Tanta, 31521, Egypt

DOI

10.70259/engJER.2024.851884

Abstract

Typically, small-scale wind turbines use either a breaking equipment or stall control methods once the wind speed exceeds its rated value. This is to limit the power extracted from the wind turbines which largely depends on the blades' shape and pitch angle. Most of small-scale wind turbines are of fixed pitch angle to avoid complexity and cost. In this work, a novel drive-rod unified variable pitch drive mechanism is proposed for blades pitch control for small-scale horizontal wind turbines. The mechanism is powered by a DC motor coupled with a lead screw which in turn is connected to the pitch drive mechanism. Details of the mechanical design and Kinematic relations relating the Dc motor angular position and the blades’ pitch angle is also discussed.

Recommended Citation

I. Bakry, Ayman; Elfouly, Mohamed; and Mehrez, Omar (2024) "Development of a Drive-rod Unified Variable Pitch Control Mechanism for Small-scale Horizontal Wind Turbines," Journal of Engineering Research: Vol. 8: Iss. 5, Article 16.
DOI: 10.70259/engJER.2024.851884
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss5/16