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Wind Turbine Yaw Controls: Part 2

ByWindmills Tech Editor

Let’s take a closer look at some of the sensors used in the yaw control system. Potentiometers,encoders and ultrasonic sensors may be used to detect wind direction. A potentiometer is a variable resistor consisting of a resistive strip, 3 terminals, and a movable wiper. The movable wind vane is connected to the wiper. As the…

A Brief History of Some Famous Vertical Axis Wind Turbines
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A Brief History of Some Famous Vertical Axis Wind Turbines

ByWindmills Tech Editor

You will be surprised to know that the first known wind turbines recorded in history were Vertical axis wind turbines, not the current dominant technology of horizontal axis wind turbines. This dates back to the 7th century B.C when vertical axis windmills were built on the Persian land. They were based on the aerodynamic drag…

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Manufacturing Defects in Wind Turbine Blades

ByWindmills Tech Editor

Manufacturing defects in wind turbine blades are Dry Spots It can be dry spots and even large whitish areas, which show the lack of resin in the laminate.Glass fibers are dry because they have not been properly impregnated with resin. Excess Resin Regions with excess resin are more fragile and can crack more easily, in…