Design and analysis of wind turbine blades

Abstract

Wind turbine design is the process of designing the specifications and form of a wind turbine to get energy from the wind. A wind turbine installation consists of the following systems needed to capture the wind's energy. They are turbine, which converts mechanical rotation into electrical power, other systems to start, stop and control the turbine. The majority of commercial turbines are of horizontal axis wind turbines. On the spinning blades the centrifugal force increases as a square of rotational speed. This makes this structure sensitive to over speed. The power of the wind increases directly with the cube of the wind speed. So that, the wind turbine should be survive much higher loads to generate power. At high winds it has the ways for reducing torque. There are various ways to limit the power if the wind speed is exceeded. It is designed to produce power between the cut-in speed and cut-out speed of 3–4 m/s and 25 m/s respectively. This paper deals with the design and analysis of above mentioned type wind turbine by considering dynamic condition.