Permanent Magnet Generator for Wind Turbine 50kW
Rated power (W) 50000
Maximum output power (W) 75000
Battery bank voltage (VDC) 400
Cut-in wind speed (m/s) 2
Rated wind speed (m/s) 11
Working wind speed (m/s) 2.5-25
Survival wind speed (m/s) 50
Generator efficiency >0.92
Generator type Permanent Magnet Alternator
Blade material/quantity GRP/3
Blade diameter (m) 12.0
Overspeed control Yaw + Electromagnetic brake + Hydraulic brake
Shutting down method Manual + Automatic
Components of magnet generator 50kW wind turbine system:
1. Generator Part
It is composed of the patented SCF generator, the nose cone, and the protection cover. Hummer adopts the state-of-the-art SCF supercritcial generator, which is installed in the hub, easy to radiate heat and reduce wind resistance. Made of high-efficiency magnetic materials, special copper alloy, high-strenghth stainless steel and aeronautic aluminum alloys, which is extremely light in weight and small in size, but with higer power producing efficicency.
2. NSK Bearings
Two NSK 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.
3. Blades
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.
4. Dogvane & 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 depasses 10°, the 24V motor will drive the yaw shaft to turn and follow the wind direction automatically.
The anemometer mesures the realtime wind speed. If the wind blows non-stop over 3m/s during 20 seconds, the automactic 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.
5. Siemens PLC control
Hummer PLC (Programmable Logic Controller) adopts the Siemens controlling module and is equiped 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 easy to control and operate your wind turbine via our PLC easily and efficiently.
Picture of magnet generator 50kW wind turbine tower:
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