Study of static converters related ripple currents effects on supercapacitors ageing within DC networks

2015 IEEE 24th International Symposium on Industrial Electronics (ISIE) Pub Date : 2015-06-03 DOI:10.1109/ISIE.2015.7281660

R. German, A. Sari, P. Venet, O. Briat, J. Vinassa

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引用次数: 7

Abstract

Although supercapacitors are more cyclable than batteries, as they don't imply faradic reaction for energy storage, they are subject to ageing. The main ageing causes are temperature and voltage. This article investigates the effect of a supplementary ageing cause which is high frequency ripple current. Indeed, ripple current is a problem happening for DC networks using power electronics converters (as in hybrid vehicles, domestic network ...). Some previous results for 1 kHz ripple current tended to show a slight effect of HF current on supercapacitors ageing speed [1]. In this article two other frequencies will be studied. The first one (100 Hz) is near from the frequency employed for domestic networks (due to rectifiers) and the second one (10 kHz) is close from the frequency of onboard power networks (due to DC-DC converters). Experimental results show that studied ripple currents are transparent in term of ageing. These results are interesting for industrial use as they prove that supercapacitors can be inserted indifferently in stationary and onboard networks without taking into account ripple currents.

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静态变流器相关纹波电流对直流网络中超级电容器老化影响的研究

虽然超级电容器比电池更具可循环性，因为它们不意味着能量储存的法拉迪反应，但它们容易老化。老化的主要原因是温度和电压。本文研究了高频纹波电流作为辅助老化因素的影响。事实上，纹波电流是使用电力电子转换器的直流网络(如混合动力汽车、家庭网络……)的问题。先前一些关于1khz纹波电流的研究结果倾向于显示高频电流对超级电容器老化速度的轻微影响[1]。在本文中，我们将研究另外两个频率。第一个(100赫兹)接近国内网络使用的频率(由于整流器)，第二个(10千赫)接近板载电力网络的频率(由于DC-DC转换器)。实验结果表明，所研究的纹波电流在老化方面是透明的。这些结果对于工业应用来说很有趣，因为它们证明了超级电容器可以在不考虑纹波电流的情况下插入固定和机载网络中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 IEEE 24th International Symposium on Industrial Electronics (ISIE)

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