This paper presents an in depth evaluation and comparison of three different drivetrain choices based on permanent‐magnet synchronous generator (PMSG) technology for 10‐MW offshore wind turbines. The life cycle approach is suggested to evaluate the performance of the different under consideration drivetrain topologies. Furthermore, the design of the drivetrain is studied through optimized designs for the generator and gearbox. The proposed drivetrain analytical optimization approach supported by numerical simulations shows that application of gearbox in 10‐MW offshore wind turbines can help to reduce weight, raw material cost, and size and simultaneously improve the efficiency. The possibility of resonance with the first torsional natural frequency of drivetrain for the different designed drivetrain systems, the influence of gear ratio, and the feasibility of the application for a spar floating platform are also discussed. This study gives evidence on how gearbox can mitigate the torque oscillation consequences on the other components and how the latter can influence the reliability of drivetrain.

中文翻译：

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评估10兆瓦海上浮式风力发电机基于PMSG的传动系统技术：生命周期观点的利弊

本文介绍了基于永磁同步发电机（PMSG）技术的10兆瓦海上风力发电机的三种不同传动系统选择的深入评估和比较。建议使用生命周期方法来评估考虑中的传动系统拓扑的不同性能。此外，通过优化发电机和变速箱的设计来研究传动系统的设计。拟议的传动系统分析优化方法得到数值模拟的支持，表明齿轮箱在10兆瓦海上风力发电机中的应用可以帮助减轻重量，降低原材料成本和尺寸，同时提高效率。对于不同设计的动力总成系统，动力总成的第一扭转固有频率产生共振的可能性，齿轮比的影响，并讨论了在晶石浮动平台上应用的可行性。这项研究为变速箱如何减轻其他部件的扭矩振荡后果以及后者如何影响传动系统的可靠性提供了证据。