1KW_VAWT
1_5W_VAWT
3KW_VAWT
Comparison
VAWT1
VAWT2
VAWT_Advantage

 Verticle Axis Wind Turbine (VAWT)


Unlike those large commercial wind turbines, small wind turbines have been widely used to provide distributed power for a variety of applications around the world, such as remote homes, telecommunication systems, street lighting systems, monitoring systems and a lot more.

In general, there are two types of wind turbines that we have seen in the market, both are vertical axis type and horizontal type and both designs can have significant advantages over each other depending on their proper application.

ComparisonA proper site selection is very important for wind turbine installation. Local wind speed, location features (including surrounding building, trees, or any possible obstructions), environmental issues (such as noise control, height of tower, etc.) all will be major influences on wind turbine's performance. If wind turbine (small wind turbine) is going to be installed in the residential area or any surrounding obstacles area, environmental impact assessment will become much more constrained as far as the turbulence is concerned, unless wind turbine is sited at location above the surrounding obstacles to avoid turbulence.

 Vertical-axis wind turbines (VAWTs) are a type of wind turbine where the main rotor shaft is set vertically and the main components are located at the base of the turbine. Among the advantages of this arrangement are that generators and gearboxes can be placed close to the ground, which makes these components easier to service and repai. Large HAWT normally uses a wind sensor coupled with a servo motor to rotate into the wind and the small HAWT generally uses a wind vane to point to the wind whenever the wind direction changes which wastes valuable energy. VAWT does not need any device to rotate into the wind direction as it collect wind from every direction to continue producing power and VAWT generates less noise which provides adoptable solution for urban area use.

                                                                                                                                                                                                                                                                                                                                                                                                   

Windiva offers various capacities of VAWTs for wide range of applications. They are:


 Darrieus-Savonius (DS) Type Wind Turbines


 1) 300 W VAWT


 

General Specifications

  • Rated Power: 300 W
  • Rated Wind Speed: 12.5 m/s
  • Rated Speed: 835 rpm
  • Cut-In Wind Speed: <3 m/s
  • Cut-Out Wind Speed: 15.5 m/s
  • Survival Wind Speed: 60 m/s

Dimension/Weight

  • Rotor Diameter: 1.24m

  • Rotor Height: 1.06m

  • Mast Height: 4m

  • Total Height: 5.06m

  • Total Weight: 25.5 KGS 

Rotor Specification

  • External Darrieus: 3 Blades

  • Internal Savonius: 2 Layers

  • Material of Blades: Anodized Aluminum

  • Material of Axis: Galvanized Steel /Anodized Aluminum

Generator Specification

  • Generator Type: AC, 3 Phase, Synchronism PMG
  • Rated Output: 300W

Braking System

  • Automatic Braking: Over speed short circuit braking system
  • Manual Braking: 3-phase short circuit by NFB brake

Operation Environment

  • Ambient Temperature: -40~50°C

  • Ambient Humidity: 95% max.

300W_VAWT

 1.5 KW VAWT


General Specifications

  • Rated Power: 1.5 KW
  • Rated Wind Speed: 12 m/s
  • Rated Speed: 250 rpm
  • Cut-In Wind Speed: < 3 m/s
  • Cut-Out Wind Speed: 15 m/s
  • Survival Wind Speed: 60 m/s

Dimension/Weight

  • Rotor Diameter: 2.8m

  • Rotor Height: 2.99m

  • Mast Height(Not Included): 4m

  • Total Height: 6.99m

  • Total Weight: 85 KGS

Rotor Specification

  • External Darrieus: 3 Blades

  • Internal Savonius: 2 Layers

  • Material of Blades: Anodized Aluminum

  • Material of Axis: Galvanized Steel SS400

Generator Specification

  • Rated Output: 1.5KWGenerator Type: AC, 3 Phase, Synchronism PMG 

Braking System

  • Automatic Braking: Automatic Dump-load and 3-phase short circuit braking system
  • Manual Braking: Mechanical Drum Brake

Operation Environment

  • Ambient Temperature: -40~50°C

  • Ambient Humidity: 95% max.

1_5W_VAWT

 


3 KW VAWT


General Specifications

  • Rated Power: 3 KW

  • Rated Wind Speed: 12 m/s

  • Rated Speed: 200 rpm

  • Cut-In Wind Speed: < 3 m/s

  • Cut-Out Wind Speed: 15 m/s

  • Survival Wind Speed: 60 m/s

Dimension/Weight

  • Rotor Diameter: 4m
  • Rotor Height: 4.16m

  • Mast Height(Not Included): 4m

  • Total Height: 8.16m

  • Total Weight: 180 KGS

Rotor Specification

  • External Darrieus: 3 Blades
  • Internal Savonius: 2 Layers
  • Material of Blades: Anodized Aluminum
  • Material of Axis: Galvanized Steel SS400

Generator Specification

  • Generator Type: AC, 3 Phase, Synchronism PMG

  • Rated Output: 3KW

Braking System

  • Automatic Braking: Automatic Dump-load and 3-phase short circuit braking system

  • Manual Braking: Mechanical Drum Brake

Operation Environment

  • Ambient Temperature: -40~50°C

  • Ambient Humidity: 95% max.

3KW_DS_VAWT