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  • SCF Supercritical generator

    Our wind generator adopts SCF supercritical technology which won a gold award in the 37th Salon Eureka in Brussels. This technology significantly reduces generator’s weight and size down to 20% to 30% of the traditional one, and the production efficiency is 10% to 30% higher. This ensures that the generator functions perfectly in small wind condition.
  • SKF bearings

    Our wind turbine adopts two SKF (Svenska Kullager Fabriken) bearings which are produced by the largest bearing manufacturer in the world, with the perfect internal geometric structure, known for its life-time endurance and reliable quality. Ordinary bearings need to be changed every two or three years, while SKF bearings can greatly reduce the maintenance costs on this matter.
  • PLC integrated with Siemens module

    Our wind turbine’s controlling system adopts the smart touch-screen PLC (Programmable Logic Controller) which is integrated with Siemens controlling unit. The PLC will alarm and adjust the abnormal running status of the wind turbine automatically both timely and efficiently. Siemens module offers high reliability to our PLC and its customers worldwide can testify for that.
  • Low noise

    The design of the rotor blade of our wind turbine absorbs the highlights of the small aircraft’s airfoil, which is compliance with the aerodynamic standards. It provides a more aesthetic look and a higher efficiency and reduces the noise production as much as possible.
  • Double braking protection

    Our wind turbine adopts the double braking protection system, which are the yawing mechanism and the electromagnetic braking system to regulate the rotation of the wind turbine. It is safe and convenient to shut down the whole system both manually and automatically.

Schematic diagram


Specifications and power curve

Rated power(W) 3000
Maximum output power(W) 4500
Battery bank voltage 180(48Vdc optional)
Start-up wind speed (m/s) 2.5
Rated wind speed (m/s) 10
Working wind speed(m/s) 3-25
Survival wind speed(m/s) 50
Generator efficiency >0.8
Wind energy utilizing ratio (Cp) 0.4
Generator type Permanent Magnet Alternator
Generator weight (kg) 71.8
Blade material/ quantity GRP/3
Blade diameter(m) Ф4.8
Over speed control Yaw + Electromagnetic brake / Hydraulic brake (optional)
Shutting down method Manual + Automatic

Structure and component parts

NO. Name
1 Generator body
2 Blade pressing plate
3 Lifting ring (Only on 5kW, 10kW, 20kW)
4 Blade
5 Gearbox
6 Speed reducer
7 Yaw servo motor
8 Lightning rod (optimal)
9 Dog-vane
10 Nacelle protection cover
11 Water-proof gland
12 Signal wire terminal block
13 Tower body
14 Generator temperature transducer
15 Wiring terminal for Generator output cable
  1. Generator Part

    It is composed of the patented SCF generator, the nose cone, and the protection cover. We adopt the state-of-the-art SCF supercritical generator, which is installed in the hub, easy to radiate heat and reduce wind resistance. It is made of high-efficiency magnetic materials, special copper alloy, high-strength stainless steel and aeronautic aluminum alloys, which is extremely light in weight and small in size, but with higher power producing efficiency.
  2. Nose Cone & Protection Cover

    Both of them are made of the reinforced aluminum alloy. Nose cone is fixed in front of the rotor blades to reduce the wind resistance and radiate the heat produced by the generator. While the protection cover between the rotor blades and the nose cone to provide extra protection to the generator.
  3. SKF Bearings

    Two SKF bearings ensure the reliability the longevity of our generator. Wide temperature ranges: operation in the high temperature (150-350ºC). Long life span, reach up to 60000-100000 hours. User may not change the bearing during the wind turbine using. It can greatly reduce the maintenance costs.
  4. Flange & Blades

    The flange is made of fine steel, used to fix the blades to the rotor. The blades are made of glass-reinforced plastic; efficiently turn the wind energy into the mechanical energy. Every set of the three blades has passed the strict balance test before the shipping. It is important to fix the blades together which belongs to one set to the flange and never mix them up with other blades which belongs to another wind turbine.
  5. Yaw Shaft

    It is made of fine steel and used to connect the generator and the blades to the tower. Powered with a 24V motor and integrated with a gear box, which are able to regulate the direction of the generator.
  6. Dog-vane & Anemometer

    They receive the signals of the wind direction and the wind speed.

    The dogvane reads the average value of the wind direction every 120 seconds. If the angle between the dogvane and the wind generator axis surpasses 10°, the 24V motor will drive the yaw shaft to turn and follow the wind direction automatically.

    The anemometer measures the real-time wind speed. If the wind blows non-stop over 3m/s during 20 seconds, the automatic wind tracking program will start to make the rotor blades surface face the wind correctly; if the wind speed drops below 3m/s, the tracking program will turn to stand-by.

  7. Off-grid Inverter & On-grid Inverter

    Our off-grid inverter adopts SPWM (Sinusoidal Pulse Width Modulation) technology, is able to invert DC with higher efficiency into AC with stable frequency and voltage, and filters the noise as well. It is used in the off-grid power system.

    Our on-grid inverter adopts MPPT (Maximum Power Point Tracking) technology and IGBT (Insulated Gate Bipolar Transistor), is able to invert DC with a high power producing capacity and a wider AC voltage output range. It connects to the public grid and there is no need for any power storage device.

  8. Siemens Module PLC

    Our PLC (Programmable Logic Controller) adopts the Siemens controlling module and is equipped with a touch screen. It can alarm and adjust the abnormal running status of the wind turbine automatically. Siemens module offers high reliability to our PLC and its customers worldwide can testify for that. It is easy to control and operate your wind turbine via our PLC easily and efficiently.
  9. Rectifier/Dump Load Controller & Dump Load Box

    The controller controls the process of which the AC produced by wind turbine being rectified into DC and eventually charges the battery bank with DC. It also controls the switching on and off of the dump load to protect the system against the risk of being overloaded with too much power.

    Metal box design of the dump load radiates the heat of the resistance inside quickly via the air convection. So there is no need for an extra fan.