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綦方中, 蔡阮昊, 曹柬. 基于循环DBSMOTE和多头注意力机制的风力发电机故障预警体系[J]. 太阳能学报, 2025,(11):772-782.
綦方中, 蔡阮昊, 曹柬. 基于循环DBSMOTE和多头注意力机制的风力发电机故障预警体系[J]. 2025, (11): 772-782.
綦方中, 蔡阮昊, 曹柬. 基于循环DBSMOTE和多头注意力机制的风力发电机故障预警体系[J]. 太阳能学报, 2025,(11):772-782. DOI: doi:10.19912/j.0254-0096.tynxb.2025-0109.
綦方中, 蔡阮昊, 曹柬. 基于循环DBSMOTE和多头注意力机制的风力发电机故障预警体系[J]. 2025, (11): 772-782. DOI: doi:10.19912/j.0254-0096.tynxb.2025-0109.
在结合传统卷积神经网络(CNN)和长短期记忆网络(LSTM)优势的基础上
提出一种基于循环DBSMOTE和多头注意力机制的风力发电机故障预警组合模型与应用体系。针对风力发电机运行数据集不平衡比率较高的问题
提出并使用一种循环DBSMOTE算法对数据集进行平衡处理。在组合预警模型中
使用CNN和LSTM算法来提取平衡处理后输入数据的空间维度特征和时间维度特征以增加数据挖掘的深度
同时引入多头注意力机制
极大地提升了模型的训练精度和预警性能。通过对采集自实际风场的风力发电机运行数据进行训练
模型在实验中实现了提前期长达32 h的故障预警能力。进一步地
通过消融实验、对比实验和十折交叉验证实验
表明所提出的组合预警模型具有较高的有效性和稳定性。
This study proposes a hybrid fault early-warning model and architecture for wind turbines
integrating the advantages of traditional convolutional neural networks (CNN) and long short-term memory networks (LSTM)
coupled with a cyclic DBSMOTE algorithm and a multi-head attention mechanism. First
a cyclic DBSMOTE algorithm is developed to balance highly imbalanced wind turbine operational datasets
mitigating the bias caused by extreme class distribution. In the hybrid early-warning model
CNN and LSTM are employed to extract spatial and temporal features from the balanced data
respectively
enhancing the depth of data mining. Additionally
a multi-head attention mechanism is introduced to prioritize critical temporal-spatial correlations
significantly improving the model’s training accuracy and early-warning performance. Through hyperparameter optimization
the model achieves fault early-warning capabilities with a lead time of up to 32 hours in experimental validation. Further validation via ablation studies
comparative experiments
and ten-fold cross-validation demonstrates that the proposed hybrid model exhibits superior effectiveness and stability in wind turbine fault early warning.
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