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arXiv 1805.06237eess.SYcs.SY
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一种局部多项式方法用于从多个数据集非参数估计锂离子电池的最佳线性近似

A Local Polynomial Approach to Nonparametric Estimation of the Best Linear Approximation of Lithium-Ion Battery From Multiple Datasets

Vrije Universiteit Brussel(布鲁塞尔自由大学);Agoria

Rishi Relan, Koen Tiels, Jean-Marc Timmermans, Johan Schoukens

AI总结:

本文提出局部多项式方法,用于从多个数据集非参数估计锂离子电池在不同非线性失真水平下的最佳线性近似,以解决实验数据获取受限的问题。

摘要:

电池短期电气阻抗行为在不同运行条件下可能呈现线性、线性时变或非线性。基于数据的电气阻抗建模技术通常将电池建模为在所有运行条件下均为线性时不变系统。此外,这些技术需要大量且耗时的实验。由于传感器故障、数据采集硬件限制、运行条件变化和电池的动力学缓慢,通常无法在单次实验中获取数据。因此必须进行多次实验。本文提出了一种局部多项式方法,用于从一系列任意长度的输入电流和输出电压数据子记录中非参数估计受不同非线性失真水平影响的电气阻抗的最佳线性近似。

英文摘要:

Battery short-term electrical impedance behavior varies between linear, linear time-varying, or nonlinear at different operating conditions. Data-based electrical impedance modeling techniques often model the battery as a linear time-invariant system at all operating conditions. In addition, these techniques require extensive and time consuming experimentation. Often due to sensor failures during experiments, constraints in data acquisition hardware, varying operating conditions, and the slow dynamics of the battery, it is not always possible to acquire data in a single experiment. Hence, multiple experiments must be performed. In this letter, a local polynomial approach is proposed to estimate nonparametrically the best linear approximation of the electrical impedance affected by varying levels of nonlinear distortion, from a series of input current and output voltage data subrecords of arbitrary length.

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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