基于二进制序列的燃料电池宽频带EIS测试

doi:10.19912/j.0254-0096.tynxb.2020-1162

太阳能学报 ›› 2022, Vol. 43 ›› Issue (7): 1-8.DOI: 10.19912/j.0254-0096.tynxb.2020-1162

• • 下一篇

基于二进制序列的燃料电池宽频带EIS测试

金致含^1,2, 苏建徽^1,2, 施永^1,2, 汪海宁^1,2

1.合肥工业大学电气与自动化工程学院,合肥 230009;
2.光伏系统教育部工程研究中心（合肥工业大学）,合肥 230009

收稿日期:2020-10-30 出版日期:2022-07-28 发布日期:2023-01-28
通讯作者: 施永（1985—）,男,博士、讲师、硕士生导师,主要从事分布式发电与新能源利用技术等方面的研究。shiyongmail@yeah.net
基金资助:
中央科研基本业务费（PA2018GDQT0021）

BROADBAND EIS TEST OF FUEL CELL BASED ON BINARY SEQUENCES

Jin Zhihan^1,2, Su Jianhui^1,2, Shi Yong^1,2, Wang Haining^1,2

1. School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China;
2. Photovoltaic System Engineering Research Center of the Ministry of Education（Hefei University of Technology）, Hefei 230009, China

Received:2020-10-30 Online:2022-07-28 Published:2023-01-28

摘要/Abstract

摘要： 目前电化学阻抗谱广泛应用于燃料电池故障诊断。针对诊断设备成本高昂的问题,提出集成在燃料电池系统DC/DC变换器的EIS测试方法,将激励信号在变换器双闭环控制的参考信号上分别施加干扰,实现了燃料电池电流和电压宽频带的在线扰动。为实现快速测试,采用一种伪随机二进制序列作为激励信号,可同时满足频率宽度和功率强度需求。实验采用Matlab/Simulink建模仿真,通过硬件在环实验验证,测试方法满足时间和精度要求,可通过嵌入式系统实现在线测试。

关键词: 燃料电池, 故障诊断, 电化学阻抗谱, 二进制序列

Abstract: Currently, electrochemical impedance spectroscopy is widely used for fault diagnosis of fuel cells. In view of the high cost of diagnostic equipment, an EIS test method integrated in the DC/DC converter of the fuel cells system is proposed. An excitation signal is applied to the reference signals for dual-loop control of the converter separately. It causes broadband online disturbances of fuel cells’ current and voltage. For faster testing, a kind of pseudo-random binary sequence is designed as the excitation signal to meet the needs of bandwidth and power intensity. The experiment uses MATLAB/Simulink for modeling and simulation, and is verified by hardware-in-the-loop experiments. This method meets the requirements of time consumption and high accuracy, and online testing can be realized through embedded systems.

Key words: fuel cells, fault diagnosis, electrochemical impedance spectroscopy, binary sequences

中图分类号:

TM911.4

金致含, 苏建徽, 施永, 汪海宁. 基于二进制序列的燃料电池宽频带EIS测试[J]. 太阳能学报, 2022, 43(7): 1-8.

Jin Zhihan, Su Jianhui, Shi Yong, Wang Haining. BROADBAND EIS TEST OF FUEL CELL BASED ON BINARY SEQUENCES[J]. Acta Energiae Solaris Sinica, 2022, 43(7): 1-8.

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基于二进制序列的燃料电池宽频带EIS测试

BROADBAND EIS TEST OF FUEL CELL BASED ON BINARY SEQUENCES

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