NDLI: On-line performance monitoring of PEM fuel cell using a fast EIS approach

Content Provider	IEEE Xplore Digital Library
Author	Das, L. Srinivasan, B. Rengaswamy, R.
Copyright Year	2015
Description	Author affiliation: Dept. of Chem. Eng., Indian Inst. of Technol., Madras, Chennai, India (Rengaswamy, R.) \|\| Depts. of Chem. & Electr. Eng., Indian Inst. of Technol., Gandhinagar, Gandhinagar, India (Srinivasan, B.) \|\| Dept. of Electr. Eng., Indian Inst. of Technol., Gandhinagar, Gandhinagar, India (Das, L.)
Abstract	The Polymer Electrolyte Membrane Fuel Cell is a widely researched fuel cell, and a highly potential candidate for alternate power generation. However, technical issues such as membrane flooding and drying prevent its deployment in many applications. Electrochemical Impedance Spectroscopy (EIS) is a very powerful technique that is used to isolate flooding and drying of the fuel cell from operating data. Such information about the state of operation of the cell is critical to deciding necessary control actions to maintain the health and performance of the cell. However, the time taken in obtaining measurements in EIS can be large enough to allow the cell to flood or dry beyond irreparable damage, rendering it a mere postmortem technique. Moreover, after long durations of perturbation, the cell takes a considerable amount of time to return to its regular operation. A new technique is proposed that uses the concept of EIS, but is computationally faster and gives results comparable with those of traditional EIS. This technique is based on perturbing the cell with a small chirp signal containing large number of frequencies instead of series of small sinusoids at different frequencies. Simulation results on isolation of flooding and drying based on Fast EIS are illustrated and future work directions are indicated.
Starting Page	1611
Ending Page	1616
File Size	429519
Page Count	6
File Format	PDF
e-ISBN	9781479986842
DOI	10.1109/ACC.2015.7170963
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Fuel cells Chirp Resistance Indexes Time-frequency analysis Coherence Impedance
Content Type	Text
Resource Type	Article

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