集成于DC/AC/DC的车载燃料电池内阻测试系统研究

doi:10.16182/j.issn1004731x.joss.17-0328

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (9): 1925-1934.doi: 10.16182/j.issn1004731x.joss.17-0328

集成于DC/AC/DC的车载燃料电池内阻测试系统研究

邓坚, 吕海全, 张立炎, 全书海

武汉理工大学自动化学院,湖北武汉 430070

收稿日期:2017-07-13 修回日期:2017-08-30 发布日期:2019-12-12
作者简介:邓坚(1964-),男,湖北武汉,本科,副教授,硕导,研究方向为智能检测与电气仪表、电动汽车电子与控制系统;吕海全(1993-),男,广西玉林,硕士,研究方向为电力电子、燃料电池内阻测试。
基金资助:
国家自然科学基金(61374050, 61673306)

Research on Internal Resistance Monitor System of Vehicle Fuel Cell Integrated with DC/AC/DC

Deng Jian, Lü Haiquan, Zhang Liyan, Quan Shuhai

School of Automation, Wuhan University of Technology, Wuhan 430070, China

Received:2017-07-13 Revised:2017-08-30 Published:2019-12-12

摘要/Abstract

摘要： 车载燃料电池内阻在线测试操作复杂、成本高,为解决这一问题,提出通过DC/DC产生微电流信号,对燃料电池输出电压和输出电流进行傅里叶变换得到燃料电池电化学阻抗谱(Electrochemical impedance spectroscopy,EIS)的测试方法。该方法集成于并联的Boost与DC/AC/DC的级联系统,并联Boost实现功率传输与扰动信号的解耦,DC/AC/DC变换器可获得更高的升压比,使该测试系统更适用于燃料电池汽车等较高电压等级的场合。在MATLAB搭建了仿真模型,仿真结果表明实现高电压比的同时,微电流引入对系统影响小且可以测得精确的内阻值。

关键词: 车载燃料电池, 电化学阻抗谱(EIS), 微电流引入, DC/AC/DC, 傅里叶变换

Abstract: In order to solve the problem of complicated and costly on-line impedance monitoring operation of vehicle fuel cells, a test method that can obtain the electrochemical impedance spectroscopy (EIS) of fuel cell by Fourier transformation against output voltage and output current of fuel cell through DC/DC generation of micro-current signal is proposed. This method is integrated in a cascaded system of parallel Boost and DC/AC/DC. The parallel Boost can realize the decoupling of power transmission and disturbance signal, the DC/AC/DC converters can achieve higher boost ratios, which makes the test system more suitable for higher voltage levels such as fuel cell vehicles. Simulation results built in MATLAB show that this system can achieve high voltage ratio, and its current ripple injection has little influence upon system and can measure the accurate internal resistance value.

Key words: vehicle fuel cell, EIS, current ripple injection, DC/AC/DC, Fourier transformation

中图分类号:

TM911.4

邓坚, 吕海全, 张立炎, 全书海. 集成于DC/AC/DC的车载燃料电池内阻测试系统研究[J]. 系统仿真学报, 2019, 31(9): 1925-1934.

Deng Jian, Lü Haiquan, Zhang Liyan, Quan Shuhai. Research on Internal Resistance Monitor System of Vehicle Fuel Cell Integrated with DC/AC/DC[J]. Journal of System Simulation, 2019, 31(9): 1925-1934.

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集成于DC/AC/DC的车载燃料电池内阻测试系统研究

Research on Internal Resistance Monitor System of Vehicle Fuel Cell Integrated with DC/AC/DC

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