
试析海上风机在强台风下叶片受损风险与对策——考察红海湾风电场的启示
Analysis of risks and measures on the blade damage of offshore wind turbine during strong typhoons——enlightenment from Red Bay wind farm
Wang Jingquan1、Chen Zhengqing2
2003年9月近海丘陵区风电场——汕尾红海湾风电场风机叶片被台风“杜鹃”吹坏。从破坏形式可以断定叶片曾发生大幅度扭转颤振而且与不利地形有关。从这一实例来看,同等强度台风情况下海上风机叶片受损的风险可能低于海岸风机,因为海面平坦,不具备风向局部变化条件。此次风灾也表明,保持风机处于停转顺桨,但可偏航的暂停状态是叶片防损的关键。
In september 2003, the fan blades of wind turbine were damaged by typhoon "cuckoo" in Shanwei Red Bay wind farm, an offshore hilly land. It can be concluded from the failure modes that the blades flutter have occurred and significantly reversed, which was related to the negative terrain. From this instance of the term, under the same intensity of typhoons, the risk of blade damage of sea wind turbine may be lower than that of coastal ones because of flat sea lack of local change conditions of wind direction. The storm also showed that it was the key for blade loss prevention to keep the wind turbine be paused state of stopping rotation, feathering and yawing.
offshore wind turbine / strong typhoons / blade damage / risk / measures
/
〈 |
|
〉 |