The kinetic energy is captured by wind turbine through blades of rotor. When the wind strikes against the blades, they revolve around the rotor shaft and therefore they spin
the low speed shaft that is coupled to a hub. This thanks the multiplier turns the high speed shaft that is coupled to the generator, which is the producer of electricity.
The wind turbine rotor moves through the lift that occurs in the blades. The lift is a force perpendicular to the wind direction and occurs because the pressure difference on both
sides of the blade, i.e. due to the fact that the air that slides along the upper surface of the wing moves faster than the bottom surface. If the inclination of the blades is very
high can produce the phenomenon known as lost of lift, in which airflow from the upper surface is no longer in contact with the surface of the wing and therefore the blades
stop rotating. It is for this reason that the wind turbine blades are twisted so that the angle of attack is the best along the whole length of it and there is no such phenomenon
The electricity generated by the turbine needs to be connected to the mains electrical supply via an electrical panel. This panel performs a number of functions including:
1. It contains a rectifier which converts the three phase “wild” AC from the turbine into DC suitable for use by the inverters.
2. It holds the inverter(s) which convert from DC to grid synchronized AC.
3. It has safety fuses and isolator switches, for the input from the turbine, and output to the grid.
4. It holds various meters for measuring the energy generated by the system and the voltage and current coming from the turbine.
The electrical connection may be either to a single or three-phase supply, depending upon the type of electricity supply to workshop.
For wind machines that use batteries to store the power, a controller manages the electrical input to the batteries. An inverter converts direct current (DC) electricity to alternating current (AC).
Small Wind Turbines for Home ( rooftop )
C-Diameter: 1.15 m
- Start-up wind speed: 11.3 km / h (3.13 m / s, 6.1 kts)
- Output: 400 W at 45 km / h (12.5 m / s, 24.3 knots), 100 W at 27km / h (7.5 m / s, 15nds)
- Maximum power: 600W
- Output: 38kW / h per month to 19.5 km / h wind
- Maximum wind speed: 177 km / h (49.2 m / s, 95nds)
- Protection of over-speed: electronic torque controller
- Turbine controller: Controller internal microprocessor with peak detection power
- Blades (three): Composite carbon fiber
- Body: Cast aluminum
- Mounting Tube No. 40 Ø 38 mm (OD. 48mm - 1 ½ inches
- Weight: 5.85 kg (Packing 686 x 381 x 228 mm / 7.7 kg)
- CE approved
- Model 12 volt