Jun 30 2010
Windflow Technology offers the Windflow 500 wind turbine. This wind turbine incorporates a two-bladed rotor mounted on a hinge. This novel design allows the rotor to move unsteadily back and forth while rotating thus reducing the fatigue loads normally associated with wind turbines.
The blades incorporated in the rotor weighs 900 kg and are made of laminated wood and epoxy. The diameter of the rotor incorporated in the wind turbine measures 33.2 m and offers a swept area of 866 m². The upwind type of rotor starts rotating at 5.5 m/s wind speed and produces the maximum power of 500 kW at 13.7 m/s wind speed with a rotor speed ranges from 48 to 51 rpm. The rotor is installed over a 30 m height hub. The rotor along with the blades and hub weighs 4000 kg.
Windflow 500 Wind Turbine
The hydraulic system incorporated in the wind turbine includes a 7.5 kW axial piston pump power unit, 1.3/ 2°/s geared motor yaw system, linear actuator pitch control, fail safe caliper brakes and a radial piston pump torsion limiter. The Windflow 500 wind turbine offered by Windflow Technology incorporates Hicks planetary parallel TLG gear box with four stages and an overall ratio of 30.9:1. The TLG system removes overloads on the gear box by delivering perfect torque without obstructions even during gusty wind conditions. The novel gear box technology allows the wind turbine to function with reduced noise levels up to 40 dBA at 400 m distance.
The Windflow 500 wind turbine incorporates a 500 kW synchronous generator with 1500 rpm speed offering 415 V at 50 Hz frequency. The auto synchronous controller deployed in this wind turbine utilizes PLC logical system. The torque limiting technology incorporated in the wind turbine along with the synchronous generator does not require any power electronics for the conversion of frequency and the produced power can be directly fed in to the grid.
Source: http://www.windflow.co.nz