The wind turbine generator speed cannot be increased

How does wind speed affect power output?

The power output of a wind turbine increases exponentially as wind speed increases. When wind speed doubles, the power output of a turbine increases eight-fold. Wind turbine manufacturers provide graphs called a “power curve” that illustrate the relationship between wind speed and power output for a specific model of turbine.

How much power does a wind turbine converter use?

Typically, the converter nominal power is approximately 30 % of the wind turbine nominal power. The grants the rotor speed to vary in a range of approximately ± 30 % of the synchronous speed . The variation of the generator rotational speed is highly dependent on the controllable active power of the converter.

Do wind turbine generators increase power ratings?

The main focus of wind energy related industries is to identity efficient yet reliable solutions to lower the cost of energy conversions . In recent years, the advancements and enhancements of wind turbine generators managed to increase the power ratings . However, there are a few points to look out for.

Does a low wind speed increase power efficiency?

Figure 8 shows that power efficiency is maximized at low wind speeds, and you can achieve rated turbine power only at one wind speed. Passive stall regulation plays a major role in not achieving the rated power and can be attributed to poor power regulation above the rated wind speed.

What is the ideal wind speed for a wind turbine?

When wind speed increases, the rotor blades rotate faster, which produces more electricity. As wind speed decreases, the rotor blades rotate slower, meaning less electricity is produced. The ideal wind speed for a wind turbine is between 12 and 25 miles per hour (mph). The Betz limit is the theoretical limit of how efficient a wind turbine can be.

What does max mean on a wind turbine?

Ωmax: Maximum speed of the wind turbine. The operation of a wind turbine depends on the wind speed and the rotational speed. On the power surface is the power curve of the wind turbine at which it operates optimally, limited by the blade angle control.