基于电流调节的燃料电池发动机过氧比波动研究

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (11): 1712-1717.

• 自动化技术、计算机技术 • 上一篇下一篇

基于电流调节的燃料电池发动机过氧比波动研究

周苏1a,1b，纪光霁1a，刘冀晨1a，胡哲2

( 同济大学 1a. 汽车学院，上海 201804；1b. 新能源汽车工程中心，上海 201804； 2. 上海汽车集团股份有限公司，上海 201804)

收稿日期:2012-01-13 出版日期:2012-11-30 发布日期:2012-11-30
基金资助:
高温质子交换膜燃料电池系统样机研发和车载环境适应性测试及综合评估（2008AA050403）

Research on the Oxygen Excess Ratio Fluctuation with Current Regulation for a PEM Fuel Cell Engine

ZHOU Su-1a, 1b , JI Guang-Ji-1a, LIU Ji-Chen-1a, HU Zhe-2

(1a. College of Automotive Studies; 1b. Clean Energy Automotive Engineering Center,Tongji University, Shanghai 201804; 2. SAIC Motor, Shanghai 201804, China)

Received:2012-01-13 Online:2012-11-30 Published:2012-11-30

摘要/Abstract

摘要： 当前质子交换膜燃料电池发动机（系统）的空气端控制主要采用前馈/反馈控制结构，这一控制策略会在电流急剧变化时导致过氧比的剧烈波动,从而影响燃料电池的“健康状况”.针对这一问题，提出了对电流进行调节以缓解过氧比波动.通过给定的电流工况，研究了电堆拉取电流调节最优的一阶动态环节时间常数.仿真结果表明，该时间常数的选择取决于动、静态2大因素的选取.动态因素为电流的变化幅值和初始值，静态因素为空压机的转动惯量及在车内的安装位置（或进气歧管体积）.

关键词: 电流调节, 过氧比, 波动控制, 燃料电池发动机

Abstract: Currently the control of air flow in PEMFC system is mainly feed-forward/feedback configuration which will inevitably lead to the ratio fluctuation when the current changes abruptly. The ratio fluctuation can affect the health of fuel cells. This research aims to find the optimal time constant of first-order dynamics for the drawn current from the stack. The simulation results indicate that the time constant depends on not only the change in the magnitude of request current and its initial value, but also the compressor inertia and its location in the vehicle.

Key words: current regulation, oxygen excess ratio, fluctuation control, fuel cell engine

中图分类号:

TP 29

周苏1a, 1b, 纪光霁1a, 刘冀晨1a, 胡哲2. 基于电流调节的燃料电池发动机过氧比波动研究[J]. 上海交通大学学报（自然版）, 2012, 46(11): 1712-1717.

ZHOU Su-1a, 1b , JI Guang-Ji-1a, LIU Ji-Chen-1a, HU Zhe-2. Research on the Oxygen Excess Ratio Fluctuation with Current Regulation for a PEM Fuel Cell Engine[J]. Journal of Shanghai Jiaotong University, 2012, 46(11): 1712-1717.

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基于电流调节的燃料电池发动机过氧比波动研究

Research on the Oxygen Excess Ratio Fluctuation with Current Regulation for a PEM Fuel Cell Engine

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