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Application of Peukert's law in supercapacitor discharge time prediction

机译:Peukert定律在超级电容器放电时间预测中的应用

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This paper studies the application of Peukert's law in predicting the supercapacitor discharge time during a constant current discharge process. Originally developed for lead-acid batteries, Peukert's law states that the delivered charge increases when the discharge current decreases. Recently, it is revealed that this law also applies to supercapacitors when the discharge current is above a certain threshold. This paper examines two application scenarios in which Peukert's law is utilized to predict the supercapacitor discharge time. Extensive experiments are performed using three supercapacitor samples with different rated capacitances from different manufacturers at various voltages. Results show that the prediction error is significantly reduced when the supercapacitor nominal charge and Peukert constant are properly determined and therefore demonstrate the effectiveness of Peukert's law in improving the prediction accuracy.
机译:本文研究了Peukert定律在恒流放电过程中预测超级电容器放电时间中的应用。 Peukert定律最初是为铅酸电池开发的,它规定当放电电流减小时,所输送的电荷会增加。最近,发现当放电电流高于某个阈值时,该定律也适用于超级电容器。本文研究了两种应用场景,其中利用Peukert定律来预测超级电容器的放电时间。使用来自不同制造商的不同额定电压的三个超级电容器样品在不同电压下进行了广泛的实验。结果表明,正确确定超级电容器的标称电荷和Peukert常数可以大大降低预测误差,从而证明了Peukert定律在提高预测精度方面的有效性。

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