EFFICIENCY INCREASE IN MARINE WIND TURBINES

Carlos Armenta-Deu

Journal of Offshore Structure and Technology

EFFICIENCY INCREASE IN MARINE WIND TURBINES

Carlos Armenta-Deu

Abstract

The paper studies a method to increase the efficiency in floating marine wind turbines by modifying the pitch angle of the wind rotor blades to make the wind turbine operating at optimum conditions. The pitch angle is adjusted to its optimum value as a function of the tilt angle of the wind turbine mast when submitted to the wave movement. The analysis of the situation has led to a theoretical model that predicts the best pitch angle depending on the angle of attack of the wind. A mechanism to compensate the variation of the pitch angle due to the oscillation of the wind turbine is proposed, therefore, the maximum output power is reached under specific working conditions.