Friday, June 17, 2011

Megawatt wind turbine

Megawatt wind turbine, 1MW and 1.5MW wind turbine generator system, 3m/s cut-in and 25m/s cut-out wind speed, 5 years warranty

Megawatt wind turbine
Megawatt wind turbine systems are becoming popular around all over the world,direct on-grid system, leaves change from the slurry system with electric yawing system, suit for different countires demand, 1000KW and 1500KW wind turbine generator system, durable and reasonable for wind farm building.
1MW and 1.5MW wind turbine generator system specification as below:
Model
FDMG1
FDMG1.5
Designed
parameters
Rated power
1MW
1.5MW
Power control
Variable speed and Pitch adjusted
Rated wind speed
13.5m/s
12m/s
Cut-in wind speed
3.5m/s
3.5m/s
Cut-out wind speed
25m/s
25m/s
security rank
IEC II A
IEC II A
Designed lifespan
20year
20year
Environment
temperature
30 ~ +40
30 ~ +41
Rotor
Number of blades
3pcs
3pcs
Rotor diameter
60.62m
70.5m
Hub apex height
61.14m
65.1m
Rpm of rotor
12-21.5rpm
12-20rpm
Sweep area
2886
3904
Blades
Blades length
29.1m
34m
Blade model
NACA63-XX
DU-FFA-DU
Material
GFR-Glass-fiber Reinforced Resin
Weight
4000KG
4450KG
Pitch-control
system
Working way
Hydraulic driving/ crank-connecting rod & synchronous disc
electromotor pitch adjust, independently blades adjust
Pitch controlled
bearing
--
4-points double row angular contact ball slewing ring with inner ring gear
Pitch adjusted rate
7.5 /s-12.5 /s
7.5 /s-12.5 /s
Pitch adjusted angle range
-2 -90
-5 -89
Battery
--
lead acid, 250-300VDC
Slip ring
29 rows
29 rows
Gearbox
Type
One stage NGW planet gear/two stage cylindrical inclined
One stage planet gear/two stage parallel axis cylindrical inclined gear
Inclined angle of main axis
--
5
Ratio
1:78.158
1:90
Oiling
splash lubricate/forced lubricate
mixed lubrication
Yawing system
Working way
Drive motors active yawing
No. of motors
2 units
4 units
Yawing axis
single row external gear 4 points contact ball bearing
double row external gear 4 points contact ball bearing
Yawing brake
motor brake sticking, 6 hydraulic brake clips
Generator
Type
Doubly-fed asynchronous wound generator
Rotational speed
937~1680rpm
1000~1800rpm
Rated voltage
690V
690V
Frequency
50Hz
50Hz
Seal rank
IP54
IP54
Cooling
forced air cooling
Converter
rotor-side converter, PWM Modulation IGBT
Tower
Type
2 sections tapered tubular steel tower
3 sections tapered tubular steel tower
Height
57.19m
63m
Max. diameter
3875mm
4260mm
Weight
Turbine weight
26 Tons
30 Tons
Generator case
39.7 Tons
50 Tons
Tower weight
78.6 Tons
93.6 Tons
Total weight
144.3 Tons
173.6 Tons


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