Modeling, Simulation and Analysis of the Characteristics of the Non-conventional Vertical Axis Wind Turbine with Variable Pitch Angle that Allows to Establish Different Control Strategies

Abstract

This work presents the modeling, simulation and analysis in stationary response of the principal characteristics of a vertical axis wind turbine (VAWT) with variable pitch angle in order to establish different control techniques. The mathematical static model implemented for the study is the so called Double Multiple Stream Tube. For different initial conditions, the model implementation in a specialized software permits to obtain: (i) position vs output torque plots of the wind turbine and of each blade, and (ii) 3D angular position vs average moment vs attack angle plots. The analysis of these plots permits the establishment of an adequate pitch angle at each angular position (from 0 to 2π) for the improvement of the output generated torque of the wind turbine.