RW-20kW variable pitch wind turbine

Short Description:

Technical parameter RW-20kw variable pitch Technical parameters 12V Wind rotor diameter (m) 12 Blade material and quantity Fiber glass reinforced * 3 Rated power / max power (w) 20k/22k Rated wind speed (m/s) 10 Rated rotating speed (rpm) 120 Working wind speed (m/s) 3-25 Startup wind speed (m/s) 2.5 Survived wind speed (m/s) 60 Working voltage (v) DC240V(off grid) / DC400V(on grid)AC240 Battery voltage / capcity (v, ah) 12*20=24...


  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 1 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Qingdao
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Product Tags

    Technical parameter

    RW-20kw variable pitch Technical parameters 12V

    Wind rotor diameter (m)

    12

    Blade material and quantity

    Fiber glass reinforced * 3

    Rated power / max power (w)

    20k/22k

    Rated wind speed (m/s)

    10

    Rated rotating speed (rpm)

    120

    Working wind speed (m/s)

    3-25

    Startup wind speed (m/s)

    2.5

    Survived wind speed (m/s)

    60

    Working voltage (v)

    DC240V(off grid) / DC400V(on grid)AC240

    Battery voltage / capcity (v, ah)

    12*20=240V/200Ah

    Speed regulation method

    Variable pitch regulation + electromagnet brake + active yawing

    Stop method

    Mechanical brake, aerodynamic brake

    Generator type

    Three phase, permanent magnet

    Gear box

    No, direct drive

    Wind turbine weight (kg)

    1800

    Tower height / weight (m/kg)

    25/4200

    Wind turbine dimension D*L (m)

    12*2.5

    Noise level (dB)

    <65

    Packaging info for transportation

    5PKGS,6360kg, 24CBM

    Output power curve

    RW-20kW variable pitch wind turbine output power curve

    20180208141815

    Features

    Variable pitch

    ABS system

    Intelligent control

    Active yawing

    Remote monitoring system

    Fail safe design

    Advanced technology 

    4A. variable pitch

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    RENERGY variable pitch wind turbine is a patented product and pioneer in China. The self-developed variable pitch mechanism of Wind turbine adjusts blade pitch following wind rotor rotating speed and wind speed, and keep wind turbine at rated rotating speed. The wind turbine has a stable output power and safe running and is maintenance free.

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    Benefits

    1.Mechanical design, safe and reliable

    2.Precise control:

    Upper limit of RPM is controlled within 10rpm, precise management

    3.Multiple protection for key components, precise machining

    4B. ABS – Aerodynamic brake system

    1.ABS system includes pitch regulation mechanism, active brake, controller, and other parts. System detect wind speed, voltage, current and other electrical parameters to determine wind turbine running or shut down.

    2.ABS system is the first time for small wind turbine to realize automatic brake function. RENERGY wind turbine became a significant of safety. Traditional brake including dump load (electronic brake), manual brake or non variable pitch brake.

    3.Since 2010, the first ABS system was designed. Now ABS system has been applied in variable pitch wind turbines widely, it became a last step safety protection

    4C. Intelligent control

    RENERGY intelligent control system is an innovated intelligent electrical system, adopting the best wind turbine control technology and combing variable pitch wind turbine characteristics. Main hardware are from best international supplier, have stable running capability and strong anti-interference ability.  The software adopts redundancy control strategy to ensure system running safely and reliably.  System has strong extendibility; it can match with all kinds of famous brand inverter and remote monitor module. It meets client’s requirement of one-stop service.

    Intelligent control benefits

    Intelligent protection

    Intelligent control benefits

    Intelligent protection:

    15 edundancy safety protection measurements:

    1.Yawing brake protection for power failure, such as over voltage, over current, over rotating speed, over temperature, low pressure and so on;

    2.sensor failure protection for voltage, current, rotating speed, wind speed, wind direction;

    3.system failure emergency brake protection for yawing and pitch control failure;

    4.protection for “inverter is out of net”; stop at over wind speed; restart function as low wind speed and so on.

    Remote monitoring

    User can monitor the wind turbine system by internet or mobile in real time. 

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    Active yawing

    1.Automatic wind direction founding

    2.Automatic untwisting 

    4D. Fail Safe design

    In extremely conditions, if all protection failed, Unique Fail safe design of Renergy will work, wind turbine blade will become feathering, wind turbine stop. The last fail safe design will keep wind turbine safe in any cases.

    Application field

    Micro grid power system,

    On grid system,

    Isolated system,

    off grid system,

    Wind and solar hybrid system,

    GSM base station,

    Telecom station,

    Island and sight lighting system and so on.

    1.Noise level

    noise level report

    1. Test conditions:

    a. The measurement is made in 10 meters of height, which is a Danish law for noise measuring of windmills.

    b. The mill has “soft” surfaces around it, like earth and grass.

    c. The microphone is placed 17 meters behind the mill, seen from the direction of the wind, with a hard surface underneath it.

    2. Test results:

    Distance (m) dB(A) at 6m/s dB(A) at 8m/s
    5 51.8 53.9
    10 50.7 52.3
    15 49.5 51.5
    20 47.8 49.9
    25 46.6 49.0
    30 45.2 47.7
    35 43.9 46.5
    40 43.1 45.1
    45 42.2 44.2
    50 41.3 43.5
    60 39.6 42.2
    70 38.5 41.1
    80 37.6 39.2
    90 36.2 38.3
    100 34.8 37.1

    Accuracy: +-2dB

    comparisons:

    Washing machine spinning in kitchen – 76dB(A)
    Larder fridge in kitchen – 42.0dB(A)
    Quiet library room - 40dB(A)
    Quiet bedroom at night – 35dB(A)

    Packaging information

    Packed in wood case.

    aaaz


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