风电机组混凝土-钢混合塔筒技术现状与发展趋势
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1.湖南大学 土木工程学院;2.湖南三一智慧新能源设计有限公司

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TU347

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Technology status and development trends of concrete-steel hybrid towers for wind turbines
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1.School of Civil Engineering,Hunan University;2.Hunan Sany Intelligent New Energy Design Co,Ltd

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    摘要:

    为开发利用低风速、高切变地区的风资源,需增加风电机组的轮毂高度,目前工程应用的高塔架方案主要有三种,分别是全钢塔筒、全混凝土塔筒(全混塔筒)以及混凝土-钢混合塔筒(钢混塔筒)。本文首先对比了三种塔筒的技术特点,结果表明采用钢混塔筒兼具全钢塔筒与全混塔筒的优点,并克服其缺点,是应对高塔架挑战的优选方案。然后,本文围绕塔筒形式(倒角正方形、圆锥形、倒角三角形、腰形、正多边形以及“自升式”),综述了钢混塔筒技术的发展历程和研究现状,并将国内钢混塔筒技术发展归结为三个发展阶段与三个技术流派。再后,本文介绍了国内外钢混塔筒的行业标准,并概述了现有提升钢混塔筒性能、优化成本、缩短施工周期及健康监测的关键技术研究。最后,本文总结了钢混塔筒技术研究中存在的问题与挑战,包括:结构统型、采用子模型分析技术、可靠性研究、老旧钢混塔筒的升级改造及超高钢混塔筒研究,对新产品的开发提供借鉴与参考。钢混塔筒具有稳定性高、使用寿命长、建造成本低等特点,可满足大型风电机组的发展要求。

    Abstract:

    In order to exploit wind energy resources in low wind speed and high shear areas, the hub height of wind turbine needs to be increased. There are three main engineering solutions of high tower, namely all-steel towers, all-concrete towers, and concrete-steel hybrid towers (hybrid towers). Firstly, this paper compares the technical characteristics of the three towers. The results show that the use of hybrid tower combines the advantages and overcomes the disadvantages of both all-steel and all-concrete towers, and is the preferred solution to meet the challenges of high tower. Secondly, this paper reviews the development history and research status of hybrid tower technology around the subject of tower types (chamfered square, cone, chamfered triangle, kidney shape, polygon, self-lift), and summarizes the domestic technological development of hybrid tower into three development stages and three technology genres. Thirdly, this paper introduces the domestic and international industry standards of hybrid tower, and outlines the existing key technology researches of improving the performance, optimizing the cost, shortening the construction cycle and health monitoring of hybrid tower. Finally, this paper summarizes the problems and challenges in the research of hybrid tower technology, including: structure unification, adoption of sub-model analysis techniques, reliability studies, upgrading of old hybrid towers and research on ultra-high hybrid towers, which provide references for new product development. With high stability, long service life and low construction cost, hybrid towers can meet the development requirements of large wind turbine.

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  • 收稿日期:2023-05-05
  • 最后修改日期:2023-08-07
  • 录用日期:2023-09-12
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