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Research on the safety of hybrid tower structures for wind turbine generators
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Hao LAN1, Guoqing LI2, Yuting YAN1, Xiaobo LI1, Bowen YU1, Bosong DING3, Chao WANG3, Liangliang WANG4
Thermal Power Generation | 2026, 55(5) : 82 - 89
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Thermal Power Generation | 2026, 55(5): 82-89
• Energy storage and renewable energy technology •
Research on the safety of hybrid tower structures for wind turbine generators
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Hao LAN1, Guoqing LI2, Yuting YAN1, Xiaobo LI1, Bowen YU1, Bosong DING3, Chao WANG3, Liangliang WANG4
Affiliations
  • 1.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
  • 2.Huaneng Renewables Corporation Limited, Beijing 100036, China
  • 3.Huaneng Anhui Wind Power Generation Co., Ltd., Hefei 230031, China
  • 4.Xi’an Yitong Thermal Technology Service Co., Ltd., Xi’an 710032, China
Published: 2026-05-25 doi: 10.19666/j.rlfd.202507122
Outline
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[Objective]

Hybrid tower structures have emerged as crucial supporting structures for wind turbine generators in low-wind-speed regions. However, the hybrid towers have a complicated construction process, leading to frequent occurrences of defects such as tower step misalignment and structural adhesive deficiency. These defects pose a significant threat to the structural integrity of the tower, thereby impacting the overall reliability and economic efficiency of wind power projects. There is an urgent need for safe construction and efficient operation and maintenance guidance.

[Method]

Taking the damage of a 4.2 MW concrete-steel hybrid tower as a case, ABAQUS was used to establish finite element models of the tower structure under various defect scenarios, including joint misalignment, insufficient adhesive at joint interfaces, and excessive pad height, to investigate the influence mechanism on structural performance and derive engineering recommendations.

[Results]

Excessive pad height, insufficient adhesive application, inadequate concrete strength, joint misalignment, and insufficient pretensioning of steel strands collectively contribute to the degradation of the tower structure's safety. Based on the aforementioned research findings, this paper proposes targeted engineering optimization recommendations.

wind power  /  hybrid tower structure  /  finite element analysis  /  construction defects  /  structural safety
Hao LAN, Guoqing LI, Yuting YAN, Xiaobo LI, Bowen YU, Bosong DING, Chao WANG, Liangliang WANG. Research on the safety of hybrid tower structures for wind turbine generators[J]. Thermal Power Generation, 2026 , 55 (5) : 82 -89 . DOI: 10.19666/j.rlfd.202507122
Funding
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  • Technology Project of China Huaneng Group Co., Ltd.(TP-24-HJK42)
  • Independent Technology Project of Xi’an Thermal Power Research Institute Co., Ltd.(TP-24-TZK35)
Appendix
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Year 2026 volume 55 Issue 5
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240
115
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Article Info
doi: 10.19666/j.rlfd.202507122
  • Receive Date：2025-07-06
  • Online Date：2026-08-14
  • Published：2026-05-25
Article Data
Affiliations
History
  • Received：2025-07-06
  • Revised：2025-08-01
  • Accepted：2025-08-08
Funding
Technology Project of China Huaneng Group Co., Ltd.(TP-24-HJK42)
Independent Technology Project of Xi’an Thermal Power Research Institute Co., Ltd.(TP-24-TZK35)
Affiliations
    1.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
    2.Huaneng Renewables Corporation Limited, Beijing 100036, China
    3.Huaneng Anhui Wind Power Generation Co., Ltd., Hefei 230031, China
    4.Xi’an Yitong Thermal Technology Service Co., Ltd., Xi’an 710032, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202507122
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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