通过可解释的人工智能技术对风力轮机系统的状态监测
Davide Astolfi1, Fabrizio De Caro2, Alfredo Vaccaro2
1Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy.
Sensors (Basel, Switzerland)
|July 8, 2023
概括
本研究介绍了可解释的人工智能 (XAI) 对于先进的风力轮机状况监测. 它识别了除风速之外的关键变量,以便更准确地进行性能分析和异常检测.
科学领域:
- 可再生能源工程可再生能源工程
- 人工智能在能源中的作用
- 机器学习用于状态监控.
背景情况:
- 风力轮机性能评估传统上使用单变功率曲线,往往无法捕捉复杂的操作动态.
- 需要多变量模型来考虑影响输出功率的工作参数和环境条件等因素.
- 现有的方法可能会忽略影响风力轮机效率和健康的关键变量.
研究的目的:
- 开发和验证使用可解释的人工智能 (XAI) 来构建多变量风力轮机功率曲线的数据驱动方法.
- 建立可重现的工作流程,以识别条件监控中最有影响力的输入变量.
- 通过揭示以前未被探索的解释变量来增强异常检测.
主要方法:
- 可解释的人工智能 (XAI) 的应用,用于构建多变量功率曲线模型.
- 顺序的特征选择,以最大限度地减少根-平均-平方误差,并确定最佳的输入变量.
- 计算沙普利系数以量化每个选定变量的模型误差贡献.
主要成果:
- 拟议的方法有效地检测风力轮机性能中的隐藏异常.
- 确定了一组与旋转机和叶片俯冲控制相关的新型高度解释性变量.
- 与传统的单变量模型相比,这种方法显示出更高的性能.
结论:
- 采用XAI驱动的多变量功率曲线为风力轮机状况监测提供了显著的优势.
- 该方法提供了对影响轮机性能的操作因素的新见解,并使更强大的异常检测成为可能.
- 这种方法为改善风能预测性维护和运营效率铺平了道路.
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