Sunning provides a low rpm speed wind turbine generator system that delivers regulated AC power to a power system grid at reduced costs and increased annual energy production while having very desirable wind turbine operating characteristics. The system uses a low tip speed ratio cross-wind type or drag propelled turbine with peak capacity of less than 10 kilowatts. Unlike horizontal propeller low rpm speed wind turbine generator, the drag propelled configuration operates in cross winds and with a low tip speed ratio under 3.0 for silent operation. The tip speed ratio is the ratio of the speed of the rotor tip divided by the speed of the wind. The low rpm speed wind turbine generator has robust construction and low construction costs, and does not need pitch speed control.
Because wind turbine generators in accordance with this invention use a low tip speed ratio, cross-wind turbine rotor, affording the advantages of low cost and low noise, the rotor does not offer the ability to yaw or furl out of the wind like a conventional propeller type wind turbine. As a result, the speed cannot be controlled through rotor direction and will increase in increasing wind. Moreover, no pitch control of the rotor blades is available to limit speed, although speed control could be maintained by overloading the rotor in high winds. However, it has been surprisingly found that low tip speed ratio rotors can be constructed such that the rotor speed need not be limited for structural safety. In operation, contrary to conventional turbine operation, the wind turbine system of this invention utilizes no active stalling. Even in extreme wind speeds of more than 35 m/sec, the rotor will not have failure from stress induced in operation at high rotational speed. A further advantage of the construction is that, without the need to control rotor speed through pitch control or stalling, the turbine construction is simplified and noise is also further reduced. Conventional small wind turbines with speed regulation through stalling are very noisy and not compatible for urban and suburban installation where their noise would be unacceptable. Low rpm speed wind turbine generator is widely used for home, boat,monitoring,street light,small community,small microwave communication station,it adopts advanced circuit to control the system ,can work with the solar panel to build an off gird wind solar hybrid system.
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MAX series 1000W Wind Turbine Technical Specifications
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Rated output power
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1000W
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Maximum outpower
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1200W
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Start-up wind speed
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2.5 M/S |
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Cut-in wind speed
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3.0 M/S |
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Rated voltage
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24V/48V |
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Rated RPM
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650 |
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Rated wind speed
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12M/S |
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Rated current
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41.67A/21A |
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Rotor diameter
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2.0M |
| Body |
Cast aluminum |
| Blades |
5 PC FRP Blade |
| Overspeed Protection |
The controller of Electromagnetic braking magnetic damping and blades stall
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| Working temperature |
-40°c~120°c
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| Survival Wind Speed |
35m/s |
| Type of generator |
Brushless three phase permanent magnet generator
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Connection
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Flange connection
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| Controller |
PWM controller |
| Certificate |
ISO9001:2008 CE RoHs |
| Warranty |
3 year limited warranty |
Max series wind turbine Dimension and structure diagram
Max series 1000W wind turbine power diagram
www.sunningwind.com
Rachel
86-13632101027
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China [CN] 
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