Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7737276 | Journal of Power Sources | 2014 | 7 Pages |
Abstract
This paper proposes an approach to the estimation of PEM fuel cell impedance by utilizing pseudo-random binary sequence as a perturbation signal and continuous wavelet transform with Morlet mother wavelet. With the approach, the impedance characteristic in the frequency band from 0.1Â Hz to 500Â Hz is identified in 60Â seconds, approximately five times faster compared to the conventional single-sine approach. The proposed approach was experimentally evaluated on a single PEM fuel cell of a larger fuel cell stack. The quality of the results remains at the same level compared to the single-sine approach.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Andrej Debenjak, Pavle BoÅ¡koski, Bojan Musizza, Janko PetrovÄiÄ, Äani JuriÄiÄ,