Main Specification | Tower | ||
Rated electrical power (1 | 3.6 MW | Hub height | 90 m / 125 m |
Cut-in wind speed (2 | 4 m/s 10 seconds mean | Material | Steel |
Rated wind speed (2 | < 11.5 m/s | Electrical Specification (typical values) | |
Cut-out wind speed (2 | 25 m/s 10 seconds mean | Generator type | Direct drive permanent magnet excited synchronous generator |
Wind class | IEC IIA | Generator voltage | 3.9 kV |
Reference wind speed | 42.5米/s 10 minutes mean | Power converter | Full power 4Q IGCT |
Maximum annual average wind speed (2 | 8.5 m/s | Nominal output voltage | 20 / 33 kV |
Turbulence intensity (3 | 0.16 | Nominal frequency | 50 / 60 Hz |
Operating temperature range | - 30°C ... + 40°C | Nominal power voltage range | - 10 % ... + 5 % |
ROTOR | Power factor range | - 0.95 ... + 0.95 | |
Rotor blade material | Glass fibre reinforced epoxy resin | Fault Ride Through | 4 second at rated power |
Rotor blade length | 57 m | TURBINE Control | |
Diameter | 118 m | 汽轮机控制 | MTC Mervento Turbine Controller |
Rotational speed | 5.8-12.6 rpm | Power control | Variable speed, pitch control |
Power coefficient at rated wind sp. | 0.40 | Pitch control | M3DH Mervento 3D Hydraulic |
Power coefficient maximum | 0.49 | Yaw control | MAH Mervento Active Hydraulic |
Mechanical brake | Hydraulic, hub mounted low speed brake disc |
SCADA and remote control | MOI Mervento Operator Interface |
Aerodynamic brake | Blade individual hydraulic feathering |
Reporting system | MRS Mervento Reporting System |
Cyclic pitch | MCP Mervento Cyclic Pitch | Condition Based Maintenance | MCBM Mervento CBM |