AL91A2

AL91A2

技术参数 Technical data
叶片长度 Blade length91m
设计风场等级 Design type classIEC S
最大弦长 Max. chord length4.8m
预弯 Pre-bending6.5m
叶片预锥角 Pre-cone angle/can be different0°
叶片重量 Mass without  T-Bolt23.7t
螺栓重量 Mass of  T-bolt615kg
重心位置 Radius center of mass25.876m
设计使用寿命 Design  operation life20years
材料体系 MaterialE/H-玻纤增强环氧树脂E/H-glass  reinforced Epoxy
运行参数 Operation Parameter
额定功率 Rated power5.x MW
风轮直径 Rotor Diameter185m
叶片数量 Number of blades3
功率控制 Power control变速变桨Pitchable &  Variable-speed
叶片转速范围 Speed range5-10rpm
额定叶尖速度 Rated tip speed87.13m/s
额定转速 Rated rotor speed9rpm
设计尖速比 Optimal tip speed ratio11.2
风能利用系数 Performance coefficient at TSR-opt0.477
根部连接 Blade Connection
螺栓类型 Principle预埋螺栓套/Insert
螺杆中心圆直径 Bolt hole circle diameter3200mm
螺栓数量和规格 Number, Size of tension bolts128xM36X4.0 10.9
根端外圆直径 Outer diameter of root3310mm


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