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Aeroelastic numerical simulation of a magnetically levitated horizontal axis wind turbine

机译：磁悬浮水平轴风风力涡轮机的空气弹性数值模拟

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摘要

This paper presents mathematical modeling of direct drive wind turbines with a three-point suspension magnetically levitated drivetrain. An aemelastic numerical simulation is performed using OpenFAST software. A 10 kw small wind research turbine (SWRT) is chosen as a preliminary step in the development of a general reliable magnetically levitated drivetrain model for wind turbine (WT) simulations. This model adds an additional five degrees of freedom (DOF) to the current version of OpenFAST V2.1.0 and aims to provide more extensive studies of the application of magnetic bearing (MB) on WTs, which is the main objective of this work. The analytical design of the magnetic levitation system for WTs under study is considered. The dynamic equations of OpenFAST are redeveloped using Kane's method for the flexible multi-body motion to include the levitated shaft dynamics. The inherent insatiability of the MB system is overcome with a robust Q-parameter model-based controller. The new dynamic equations of the MB are verified under different wind scenarios to prove the ability of MB to compensate for different aerodynamic and gravitational loads. The simulation results show that MB technology is a promising approach that can help to mitigate the WT's vibrations and solve the current mechanical bearing problems.
机译：本文介绍了具有三点悬架磁悬浮动脉的直接驱动风力涡轮机的数学建模。使用OpenFast软件进行辅助数值模拟。选择10 kW小风力研究涡轮机（SWRT）作为开发用于风力涡轮机（WT）模拟的一般可靠的磁悬浮模型的初步步骤。该模型将额外的五个自由（DOF）增加到OpenFast V2.1.0的当前版本，并旨在为磁轴承（MB）在WTS上提供更广泛的研究，这是这项工作的主要目标。考虑了研究WTS磁悬浮系统的分析设计。 OpenFast的动态方程用Kane的柔性多体运动方法重新开发，包括悬浮轴动态。克服了基于Q参数模型的控制器克服了MB系统的固有的耐用性。 MB的新动态方程在不同的风情景下验证，以证明MB补偿不同的空气动力学和引力载荷的能力。仿真结果表明，MB技术是一种有希望的方法，可以帮助减轻WT的振动并解决目前的机械轴承问题。

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