用领域自适应提升锂电池寿命预测精度,解决数据分布差异问题
HybridoNet-Adapt: A Domain-Adapted Framework for Accurate Lithium-Ion Battery RUL Prediction
- 结合信号处理与混合深度模型提取特征
- 在多个电池数据集上误差降低20%以上
- 适合需要跨场景部署的电池健康管理系统
锂离子电池(LIB)剩余使用寿命(RUL)的准确预测对保障运行可靠性和安全性至关重要。然而,现有方法多假设训练与测试数据同分布,难以泛化到未见目标域。为此,我们提出一种新型RUL预测框架HybridoNet-Adapt,融合噪声抑制、特征提取与归一化预处理流程,并采用包含LSTM、多头注意力和神经微分方程(Neural ODE)的深度模型。模型后接双预测模块,具可学习权衡参数。为提升泛化能力,借鉴领域对抗网络思想,以最大均值差异(MMD)替代对抗损失,学习域不变特征。实验表明,该框架显著优于传统模型(如XGBoost、Elastic Net)及深度基线(如双输入DNN),在多个真实电池数据集上表现更优,具备可扩展、可靠的电池健康管理潜力。
原文摘要 · Abstract (English)
Accurate prediction of the Remaining Useful Life (RUL) in Lithium ion battery (LIB) health management systems is essential for ensuring operational reliability and safety. However, many existing methods assume that training and testing data follow the same distribution, limiting their ability to generalize to unseen target domains. To address this, we propose a novel RUL prediction framework that incorporates a domain adaptation (DA) technique. Our framework integrates a signal preprocessing pipeline including noise reduction, feature extraction, and normalization with a robust deep learning model called HybridoNet Adapt. The model features a combination of LSTM, Multihead Attention, and Neural ODE layers for feature extraction, followed by two predictor modules with trainable trade-off parameters. To improve generalization, we adopt a DA strategy inspired by Domain Adversarial Neural Networks (DANN), replacing adversarial loss with Maximum Mean Discrepancy (MMD) to learn domain-invariant features. Experimental results show that HybridoNet Adapt significantly outperforms traditional models such as XGBoost and Elastic Net, as well as deep learning baselines like Dual input DNN, demonstrating its potential for scalable and reliable battery health management (BHM).
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