基于修正的叶素动量理论,考虑叶尖/叶根损失修正、动态失速、动态入流、叶片截面扭转等影响,通过叶片与塔筒耦合结构动力学响应分析,以某4 MW机组为例,对极端工况下的大型风电机组极限载荷进行研究。结果表明,在极端阵风耦合脱网故障时,通过增加旁路负载或储能系统调节负载转矩,有助于抑制机组由于负载消失产生的明显结构变形和降低极限载荷。
Abstract
The extreme load analysis research in a case of 4 MW large-scale wind turbine on extreme conditions is carried out by method of dynamic response coupling blade and tower, based on improved BEM theory in consideration of influence of tip/hub loss correction, dynamic stall, dynamic inflow and blade section torque. The results show that adoption of bypass loads or energy storage system for adjusting torque helps to decrease the extreme loads and inhibit structure displacement of wind turbine due to load disappear.
关键词
风电机组 /
储能 /
耦合分析 /
极端工况 /
储能系统 /
极限载荷
Key words
wind turbines /
energy storage /
coupling analysis /
extreme load case /
energy storage system /
extreme load
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参考文献
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ZHANG L W.A extreme load control method, medium and equipment of wind turbine based on energy storage system. China, 202110560496.8[P]. 2022.05.20
基金
中国华能集团科技项目（HNKJ21-HF281; HNKJ21-H02）
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