Achievements in Thailand

  • Installed Largest Wind turbine

This project is initiated by DEDE under the Ministry of Energy in 2007 and is currently situated in Huasai, Nakhon Si Thammarat Province. Thai Wind Turbine Generator(WTG) or NEW UNITE is manufactured in China with German research collaboration. The WTG stands at 82 metres high with a rotor diameter of 77 metres. It can generate 1.5 MW at a windspeed of 11.5 m/s. The tower comprises of 3 sections and it requires a 500 ton crawler crane to install.

Technical Data

Type: Air - Air Cooling Double Fed Asynchronous Generator
Rated Power: 1,500 kW Voltage: 690V
Protection Class: IP55 Converter: IGBT
No. of Blades: 3 Blade Length: 37.5 metres
Rotor Speed: 11 - 18 rpm Rotor Diameter: 77 metres
Swept Area: 4657 m2 Cut - in Speed : 3 m/s
Cut - out Speed : 21 m/s Rated Wind Speed: 11.5 m/s
Survival Speed : IEC III Gear Ratio: 1:100
Hub Height: 80 metres No. of Sections: 3

  • The Largest wind park

This project is initiated by EGAT in 2007 and is currently situated in Lam Tahklong, Saraburi Province. This Wind Park comprises of 2 unit of 1.25 MW Wind Turbine Generator (WTG) from Sewind. Our company provides erection and lifting services to EGAT for this Project. The WTG stands at 70 metres high with a rotor diameter of 64 metres. It can generate a total of 2.5 MW at a windspeed of 12.3 m/s. The tower comprises of 3 sections and we utilize it requires a 500 ton crawler crane to install.

Technical Data

Type: Double Fed Asynchronous Generator
Rated Power: 1,250 kW Voltage: 690V
Converter: IGBT No. of Blades: 3
Blade Length: 31 metres Rotor Speed: 21.1 rpm
Rotor Diameter: 64 metres Swept Area: 3217 m2
Cut - in Speed : 2.8 m/s Cut - out Speed : 23 m/s
Rated Wind Speed: 12.3 m/s Survival Speed : IEC III
Hub Height: 68 metres No. of Sections: 3

The first medium wind/diesel pilot project in an Island

This project is initiated by PEA under the Ministry of Energy in in Koh Tao (Tao Island). This Wind Turbine is manufactured in India with German Technology and is designed for a nominal electrical power of up to 250 kW >7 m/s wind speeds and 50 kW > 4 m/s and < 7 m/s wind speeds.The rotor diameter is 30 m, and power control is based on the ''stall'' principle.

Technical Data

Rotor
Diameter : 30 m
Swept area : 707m2
Rotor Speed : 40/27rpm
Power regulation : Stall
Transmission system
Gearbox type : Helical,3 stage
Ratio : 37.777
Gearbox cooling : Oil cooler
Mechanical Brake  
Type : Disc
Activation : Asynchronous 4/6 Pole
Nominal Power : 250 kw / 50 kw
Voltage : 690v
Protection class : Ip54
Yaw system
Control : Active
Drives : 2 Planetary Yaw Geared motors
Bearing : Slew Bearing
Turbine Control
Software : IC1000
Hardware : Mita IC100 system
SCADA : Gateway
Operational Data
Cut-in wind speed : 4m/s
Cut-out wind speed : 25m/s
  • The first mega watt class Permanent Magnet Wind turbine generator in Thailand

This project is initialed by PEA and is located in Sathingphra, Songkhla province

Generator
Construction Direct drive synchronous generator Permanent magnets
Rated power 1575 kW
Rated voltage 690 V
Protection class IP55
Control and safety system
Main brake Aerodynamic, pitch 3 independent drives
Service brake Electrical
Rotor lock Hydraulic
Remote control Leitwind SCADA
Power electronic
Converter type 4Q-IGBT
Rated power and frequency (grid-side) 3 ~ 690 V + -10% 50 Hz
Power factor (grid-side) 0.9 ind - 1 - 0.9 cap, adjustable
Design Data
Hub height 80 m
Rated power 1500 kW
Tower Conical steel tower
Cut-in wind speed 3 m/s
Cut-out wind speed 25 m/s
Yaw control system Active, electrical
Number of blades 3
Rotor diameter 77m
Swept area 4657 m²