Can a wind turbine run at a low speed?

Yes, less than 1 mph, a wind so light you’d have a hard time getting a feather to blow through the air. Though the amount of energy your turbine will produce at these speeds is minuscule, it is free energy. Rather than have your turbine sitting idle, you might as well be putting it to use.

How can a small wind power system avoid over-speed?

Turbine over-speed is avoided by applying a low resistance dump load to the generator, increasing the load torque to the turbine, slowing the blades, and resulting in aerodynamic stall. Figure 1. Schematic of typical small wind power system including wind turbine, storage system and loads 3.1. Commercial Small Turbines

How a wind turbine is operated in a lower wind speed?

In the lower wind speed, when the aerodynamic power produced by the wind turbine is below the maximum power rating of the power converter, the wind turbine is operated in the CPmax. The pitch angle of the wind turbine is controlled to have the As the rpm maximum possible CPmax. changes, the pitch angle is kept at its optimum pitch angle.

What is a wind turbine generator?

Wind turbine generator, controlled, variable speed. The development of wind turbine power generation has been expanding during the past 10 years. The global market for the electrical power produced by the wind turbine generator (WTG) has been increasing steadily, which directly pushes the wind technology into a more competitive arena.

What happens if wind speed is too low?

At very low wind speeds the turbine produces too little torque to overcome friction. Once the wind speed is sufficient to allow the turbine to rotate, the output power is approximate‐ly proportional to the cube of the wind speed. This remains true up to the rated speed.

What is a smart wind turbine?

Envision has pioneered development and innovation of "smart wind turbines". Envision' s world first smart wind turbine for low wind speed sites has accelerated the strategic realignment of China's wind power industry by effectively tapping low wind speed areas, which accounts for more than 60% of China's wind resource.