在浮动风力轮机中使用振动信号进行基于机器学习的损害诊断:在不同风速和方向下进行实验室规模的研究
John S Korolis1, Dimitrios M Bourdalos1, John S Sakellariou1
1Stochastic Mechanical Systems & Automation (SMSA) Laboratory, Department of Mechanical Engineering and Aeronautics, University of Patras, 26504 Patras, Greece.
远程诊断使用机器学习 (ML) 结构健康监测 (SHM) 准确检测,识别和评估漂浮风力轮机 (FWT) 的损坏. 这种先进的方法可以确保及时修复,提高安全性,并降低离岸运营的成本.
科学领域:
- 工程 工程师 工程师 工程师
- 可再生能源可再生能源是可再生能源.
- 结构健康监测 结构健康监测
背景情况:
- 海上浮动风力轮机 (FWT) 面临恶劣的环境,使得现场监测变得危险和昂贵.
- 在FWT中早期检测损坏对于安全,运营生命周期和降低成本至关重要.
- 通过基于振动的结构健康监测 (SHM) 实现自动远程诊断对于FWTs至关重要.
研究的目的:
- 通过使用机器学习 (ML) SHM来调查FWT的完整损害诊断问题.
- 评估ML SHM方法在检测,识别和描述损害方面的有效性.
- 用有限的传感器数据来评估ML SHM的性能.
主要方法:
- 在实验室规模的FWT模型上进行了数百次实验.
- 模拟了各种损坏场景:刀片裂,增加质量 (冰块积累) 和连接退化.
- 采用了成熟的ML SHM方法,在全频带宽中采用了对损坏敏感的特征向量.
主要成果:
- 在所有损伤诊断阶段 (检测,识别,严重程度) 取得了100%的成功.
- 即使使用单个振动传感器,也证明了无的诊断.
- 验证了ML SHM对于全面的FWT条件评估的有效性.
结论:
- 先进的ML SHM方法可以可靠地诊断FWTs的完整损伤.
- 拟议的方法提高了FWT的安全性和运营效率.
- 这项研究为远程,自动化的FWT结构健康监测建立了一个强大的框架.
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