کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1285448 1497920 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tracking of electrochemical impedance of batteries
ترجمه فارسی عنوان
ردیابی امپدانس الکتروشیمیایی باتری
کلمات کلیدی
سیستم مانیتور باتری، طیف سنجی امپدانس الکتروشیمیایی، برآورد دامنه فرکانس، شناسایی گسترده، الگوریتم برآورد مجدد
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی


• The aim is to estimate and track the electrochemical impedance of batteries.
• We develop a wideband recursive estimation algorithm based on the Fourier transform.
• The method reaches good tracking and estimation performance on lithium ion batteries.
• The algorithm can easily be implemented in an embedded system.

This paper presents an evolutionary battery impedance estimation method, which can be easily embedded in vehicles or nomad devices. The proposed method not only allows an accurate frequency impedance estimation, but also a tracking of its temporal evolution contrary to classical electrochemical impedance spectroscopy methods. Taking into account constraints of cost and complexity, we propose to use the existing electronics of current control to perform a frequency evolutionary estimation of the electrochemical impedance. The developed method uses a simple wideband input signal, and relies on a recursive local average of Fourier transforms. The averaging is controlled by a single parameter, managing a trade-off between tracking and estimation performance. This normalized parameter allows to correctly adapt the behavior of the proposed estimator to the variations of the impedance. The advantage of the proposed method is twofold: the method is easy to embed into a simple electronic circuit, and the battery impedance estimator is evolutionary. The ability of the method to monitor the impedance over time is demonstrated on a simulator, and on a real Lithium ion battery, on which a repeatability study is carried out. The experiments reveal good tracking results, and estimation performance as accurate as the usual laboratory approaches.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 312, 30 April 2016, Pages 60–69
نویسندگان
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