Posts Tagged ‘HAWT’

Types of Commercial Wind Turbines.

July 8, 2010

We already saw the different wind turbines we can find nowadays, from the HAWT to VAWT. However, the most commercial at this moment are the High Tip Speed Ratio HAWT. In this post, we are going to describe the different models of wind turbines and what kind of technology they use to convert the mechanical energy to electric energy.

If we pay attention at the above table, we can see there are two wind turbines models according to their Speed Control and Power Control. Thereby, we can find four models: Type A, Type B, Type C, and Type D (see the below diagram). There are three variants for the Type A (A1,A2 and A3). Although it would be possible to manufacture the same variations for the B, C and D Types, it would be not worthy (from the commercial point of view) because these models lack the capability for a fast reduction of power (see the grey-colored boxes in the first diagram). Let´s start describing the possibilities to control the power the aerodynamic forces on the turbine rotor.


Types of Wind Turbines.

July 3, 2010

Wind Turbines can be classified in two big groups: HAWT (Horizontal Axis Wind Turbines) which its rotor is connected to a horizontal shaft, and VAWT (Vertical Axis Wind Turbines) which have a vertical shaft.


Since 1980’s, most of the commercial wind turbines are included in this group. The HAWT consist of a tower and a nacelle that is mounted on the top of the tower. The nacelle contains the generator, gearbox and the rotor.