arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.11580eess.SYcs.LGcs.SY
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集成电化学建模和机器学习的锂离子电池

Integrating Electrochemical Modeling with Machine Learning for Lithium-Ion Batteries

University of Kansas(堪萨斯大学);University of California, Berkeley(加州大学伯克利分校)

Hao Tu, Scott Moura, Huazhen Fang

摘要:

锂离子电池(LiBs)的数学建模是先进电池管理的核心挑战。本文提出了一种新的方法,将基于物理的模型与机器学习相结合,以实现LiB的高精度建模。这种方法独特地提出将物理模型的动态状态通知机器学习模型,从而实现物理学和机器学习之间的深度集成。我们提出了两个混合物理机器学习模型的基础上的方法,它混合了一个单粒子模型与热动力学(SPMT)与前馈神经网络(FNN)进行物理知情的学习LiB的动态行为。所提出的模型是相对简约的结构,可以提供相当大的预测精度,即使在高C率,如广泛的模拟。

英文摘要:

Mathematical modeling of lithium-ion batteries (LiBs) is a central challenge in advanced battery management. This paper presents a new approach to integrate a physics-based model with machine learning to achieve high-precision modeling for LiBs. This approach uniquely proposes to inform the machine learning model of the dynamic state of the physical model, enabling a deep integration between physics and machine learning. We propose two hybrid physics-machine learning models based on the approach, which blend a single particle model with thermal dynamics (SPMT) with a feedforward neural network (FNN) to perform physics-informed learning of a LiB's dynamic behavior. The proposed models are relatively parsimonious in structure and can provide considerable predictive accuracy even at high C-rates, as shown by extensive simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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