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Features |
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JSW has introduced
the basic technology of direct drive permanent magnet
gearless wind turbines from Europe and has improved
it to fit for purpose by our modern technology. |
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High efficiency |
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Direct gearless drive
eliminates gear loss and synchronous generator
with permanent magnet offers high efficiency
compared with conventional design. |
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High reliability |
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No gearbox and no
oil cooler eliminates a major cause of
trouble. Compared with an asynchronous
slip ring anchor generator, no abrasion
parts such as brushes are required, eliminating
the need for maintenance/replacement. |
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Low noise |
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Gearbox, which is
the major source of noise claim, is omitted. |
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Low maintenance cost |
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In addition to high
reliability, because there are no equipments
which require oil lubrication, such as
gearbox, main shaft and brushes, a remarkable
reduction of maintenance cost is possible. |
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Less influence to grid |
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The full conversion
of the power leads to several advantages
for the power quality supplied and the
flexibility offered to the grid operator.
Special features can be offered concerning
grid power management, such as cos 
improvement, even without power production
of the wind turbine. |
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Technical Data |
J82-2.0
/ II |
| Main
Specification |
Rated
Power |
2000kW |
| Cut-in
Wind Speed |
3.5m/s |
| Rated
Wind Speed |
13m/s |
| Cut-out
Wind Speed |
25m/s |
| IEC
class |
S |
Extreme
Wind Speed according to IEC61400 class I
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70m/s |
| Average
Wind Speed |
8.5m/s (II) |
| Turbulence
Intensity |
0.18 |
| Rotor |
Material |
GFRE |
| Length
of Blade |
40m |
| Diameter |
83.3m |
| Rated
Rotational Speed |
19rpm |
| Rotational
Speed |
Variable |
| Tower |
Hub
Height |
70m |
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Electrical Specifications |
Generator
Type |
Direct-Drive-Gearless
Permanent Magnet Synchronous Generator |
| Nominal
Voltage |
660V |
| Voltage
Frequencies |
50/60Hz |
| Control |
Output
Control |
Pitch Control,
variable speed control |
| Yaw
Control |
Active yaw control |
| Weight |
Rotor |
42tons |
| Nacelle
+ Sub Frame |
34tons |
| Generator |
60tons |
| Tower |
145tons(Hub Height 70m) |
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Estimated Annual
Power
Generation Capacity |
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Power Curve |
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Estimated Annual
Performance
of the J82 Wind Turbine |
Average
Wind Speed |
6m/s |
7m/s |
Power
Generation |
Approx.
4400MWh |
Approx.
5941MWh |
| CO2Reduction |
Approx.
3100 tons |
Approx.
4180 tons |
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| Notes: |
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Estimated power generation is
based on the average annual wind
speed at the hub height. |
| 2. |
CO2 reduction is estimated
in comparison with oil fired power
system.(0.704kg-CO2/kWh) |
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