Features of Equipment, Systems and Facilities
Hisai City installed 3,000 kW wind power generation systems
consisting of 4 units of wind turbine rated at 750 kW each.
The annual power production amounts to approximately 8,000,000
kWh, 16 % of the City's power demand, which is to be sold to
the utility.
In consideration of total annual power consumption of the City,
the reduction of carbon dioxide emission is estimated to be
about 4.7%.
While the rotor turns at wind speed 2 m/s, power generation
requires 3 m/s or faster wind.
When the wind speed exceeds 25 m/s, each blade is turned parallel
to the wind so as to reduce the resistance to wind and to stop
spontaneously, for the sake of security.
The system is designed so that rated output 750 kW is maintained
up to 12.5 m/s or faster wind.
The yaw system to keep the turbine facing to the wind and the
variable pitch to change the blade angle depending upon the
wind speed ensure stabilized and efficient power generation.
| Wind turbines |
imported from the Netherlands |
| Tower hight |
50 m |
| Roter diameter |
50.5 m |
| Cut in speed |
3 m/second |
| Cut out speed |
25 m/second |
| Rated output |
750 kW at 12.5 m/s or faster |
|
