China Ah-20kw Wind Power Generation with Automatic Safety Protection System

• Warranty: 2years
• Output Type: AC Three Phase
• Number of Blade: Three Blade
• Rotating Shaft: Horizontal
• Stress Way of Blade: Lift Force
• Power: 400W-30kw
• Model NO.: AH-20kW
• Phase: Three Phase
• Certification: CE, ISO, RoHS
• Name: Small Wind Turbine Generator
• Application: Home,Farm,Project etc.
• Speed Regulation Method: Pitch Controlled
• Working Wind Speed: 3-30m/S
• Generator Type: Three Phase Permanent Magnet Synchronous Genarator
• Transport Package: 1. Plywood Box 2. Softpackage
• Specification: CE ISO TUV
• Trademark: ANE
• Origin: Shandong Qingdao
• HS Code: 85023100
• Production Capacity: 500sets/Month

Product Description

Technical Parameter

AH-20kW Pitch Controlled Wind Turbine Technical Parameters
Wind rotor diameter (m)	9.8
Blade material and quantity	Fiber glass reinforced * 3
Rated power (w)	20,000
Rated wind speed (m/s)	11
Rated rotate speed (rpm)	175
Working wind speed (m/s)	3-25
Start up wind speed (m/s)	2.5
Survived wind speed (m/s)	59.5
Working voltage (v)	DC450V
Speed regulation method	Pitch control + Active yawing +electromagnet brake
Stop method	Pitch controlled brake +Active yawing
Generator style	Three phase, permanent magnet
Wind turbine weight (kg)	1210

3. Output Curve

4. Body Structure


5. Product Characteristics

5.1  Remote monitor
Remote monitor system inspects the wind speed and generator voltage, send order to change the wind turbine stop or run even send order to start up the background power source. This system also sends unusual station and failure parameters to user, improve the user's emergency capacity and pertinence to debugging.
5.2  Automatic yawing
Automatic wind answering system will find the right wind direction according to the inspection to wind speed and wind direction. To make sure a good output power at small wind speed and a good protection at gale. Rotating body is same with MW wind turbine's , lower failure rate, long service life.
5.3  Pitch control
Double degree pitch control. It takes account of lower startup wind and speed and regulation at gale.
Joint bearing of pitch controlled mechanism main parts protection. It extends service life
Blade bearing room protection. We build a independent bearing lubrication room to ensure bearing lubrication.
5.4  High efficiency generator

1. Inner rotor design with good tightness. Level of protection: IP54
2. Radial tile-shaped permanent magnet rotor magnetic circuit structure: flux density is 10-15% higher than traditional Tangential magnetic circuit.
3. Generator fractional slot winding: generator design adopts fractional slot winding; lower output harmonic component of generator; lower waveform distortion; lower startup resist moment. All of these make wind turbine startup with lower wind speed.
4. Special electromagnetic load design: not only consider of generator capacity, but also improve generator's overload capacity by 1.5 times. Larger cooling area: generator cooling area is over 2.5 times comparing with Stator outer circumference area. The temperature rise is always lower than 85 degree with long time running with 1.2 times to full output power.
5. Cold-rolled non-oriented silicon steel sheet: Lower generator iron loss
6. Independent design stator piece: more reasonable generator stator cell structure. Lower current density
7. Higher fixed voltage adjustable rate: Fixed voltage adjustable rate is over 45%. Lower cut-in wind speed;  Easier for grid-connection inverter power design.
8. High structure strength: generator case can bear some damaged working condition such as single blade fly out. 1.5 times safety ratio
9. Permanent magnet direct-drive structure: no gear case, low failure rate.

 

1. Estimated Generation

 

Annual average wind speed	4m/s	5m/s	6m/s	7m/s
Estimated annual generation	13621kWh	28143kWh	44456kWh	60477kWh