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Main Technical Data of 2MW Wind Power Generator Set
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Rotor diameter
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80m
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Rated power
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2000kW
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Ambient temperature
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-40℃～+40℃
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Number of blades
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3
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Blade material
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glass-fibre and carbon-fibre reinforced resin
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Swept area
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5027㎡
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Lightning protection at rotor
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Yes
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Cut-in wind speed
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3.5m/s
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Nominal wind speed
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13.5m/s
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Cut-out wind speed
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25m/s
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Survival wind speed
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57.4m/s
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Nominal rotational speed
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18.0rpm
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Rotational speed range
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11.1～20.7rpm
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Rotational speed control
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pitch control,active blade adjustment
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Power regulation
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pitch control
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Gearbox
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3 stage planetary bevel spur wheel gearbox
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Transmission
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1：94.4
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Main braking system
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compressed air brake
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Emergency braking system
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brake on main shaft
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Generator
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induction,doubly-fed
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Rotational speed range
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500～1950rpm
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Rated voltage
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690 V
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Rated current
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1675A
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Power factor,standard
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1.0
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Power factor，optional
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0.9 lead-0.95 lagging
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Grid frequency
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50 Hz
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Inverter
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IGBT-inverter
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Yaw system
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active via electric motors
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Meteorology sensors
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for wind directions,wind velocity and ambient temp.
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Tower
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Tubular steel tower
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Hub heights
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70m/80m/100m
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Weight of tower
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143t/163t/204t
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