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海上风电机组支撑结构一体化设计方法

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受设计工作范围分工和责任的制约,风电机组设备厂商和风电场建设单位分别设计塔筒和导管架,这种分离式设计通过塔筒底部载荷传递并反复迭代确定结构型式及尺寸.此外,现有的海上风电机组导管架设计参考海洋石油平台等规范,忽略了海上风电机组的受力特点.上述两层原因较大程度上制约了支撑结构的力学性能,且设计迭代次数较多,并无法准确获取整体结构的动态响应.为解决上述问题,提出基于拓扑优化的导管架结构设计方法,并通过改变塔筒和导管架分界面位置,即扩大拓扑优化设计空间进一步提高结构性能.选取NREL 5 MW海上风电机组为研究对象,分别对比参考结构、拓扑优化结构和一体化设计结构的固有频率和不同极限工况下的最大变形.结果证明了所提出支撑结构一体化设计方法的有效性和优越性.
INTEGERATED DESIGN METHOD OF SUPPORTING STRUCTURE FOR OFFSHORE WIND TURBINE
Wind turbine manufacturers and foundation designers design tower and jacket respectively,due to their distinct responsibilities.This separated design is carried out through load transfer at the bottom of the tower and its sizestructural style and dimensions are determined by repeated iterations through load transfer at the bottom of the tower.In addition,the design of offshore wind turbine jacket typically refers to offshore oil platforms and other regulations,ignoring the unique characteristics of offshore wind turbines.The above two reasons restrict the mechanical properties of the supporting structure to a large extent,which leads themore iterative processnumbers and cannot capture the dynamic responses of the overall structure.A structural design of jacket utilizing topology optimization wasis presented to address these challenges.The structural performance is further enhanced by relocating the interface between tower and jacket,hence expanding the design space.NREL 5 MW offshore wind turbine was chosen as the reference.The structural responsesnatural frequency and maximum deformation of the novel structures resulted from thereference structure,topology optimization structure and integrated design were provided.structure under different limit conditions are compared respectively.The results demonstratedprove the efficiencyeffectiveness and superiority of the proposed method of integrated design method for support structures.

offshore wind turbinesjackettowerstructural optimizationtopology optimizationintegrated design

张承婉、龙凯、陆飞宇、张锦华、陶涛

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新能源电力系统国家重点实验室(华北电力大学),北京 102206

北京工业大学材料与制造学部,北京 100124

南方电网电力科技股份有限公司,广州 510080

海上风电机组 导管架 塔筒 结构优化 拓扑优化 一体化设计

国家重点研发计划华能集团海上风电与智慧能源系统科技专项新能源电力系统全国重点实验室开放基金南方电网公司新能源实验室开放基金

2022YFB4201302HNKJ20-H88-01LAPS23015GDXNY2024KF03

2024

10.19912/j.0254-0096.tynxb.2023-0355

太阳能学报
中国可再生能源学会

太阳能学报

CSTPCD北大核心
影响因子：0.392
ISSN：0254-0096
年,卷(期)：2024.45(6)