Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter

This paper presents an equivalent electrical circuit model for a unit cell all-vanadium redox flow battery (V-RFB). The developed V-RFB model consists of an open-circuit cell potential (Ecell(ORP)) which is in series with an ohmic internal resistance and parallel with an n-Resistor–Capacitor (n-RC)...

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Main Authors: M. R., Mohamed, H., Ahmad, M. N., Abu Seman, S., Razali, M. S., Najib
Format: Article
Published: Elsevier Ltd 2013
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Online Access:http://umpir.ump.edu.my/id/eprint/5921/
http://dx.doi.org/10.1016/j.jpowsour.2013.03.127
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author M. R., Mohamed
H., Ahmad
M. N., Abu Seman
S., Razali
M. S., Najib
author_facet M. R., Mohamed
H., Ahmad
M. N., Abu Seman
S., Razali
M. S., Najib
author_sort M. R., Mohamed
building UMPSA Library
collection Institutional Repository
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
continent Asia
country Malaysia
description This paper presents an equivalent electrical circuit model for a unit cell all-vanadium redox flow battery (V-RFB). The developed V-RFB model consists of an open-circuit cell potential (Ecell(ORP)) which is in series with an ohmic internal resistance and parallel with an n-Resistor–Capacitor (n-RC) network. The Ecell(ORP) represents an intrinsic relationship of the V-RFB state-of-charge (SOC), while the n-RC networks represent the polarization characteristic and dynamic behaviour of the V-RFB. The Ecell(ORP) and ohmic resistance parameters are obtained through a direct measurement of an experimental setup of 25 cm2 unit cell laboratory unit V-RFB, whereas the two pairs of RC network parameters are identified through a recursive algorithm of extended Kalman filter (EKF). The accuracy of this model is verified with different pulse voltages at a few values of SOCs. Ultimately, the model is validated with an experimental charge–discharge characterisation of V-RFB system. Suggestion for system improvement is highlighted.
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institution Universiti Malaysia Pahang
publishDate 2013
publisher Elsevier Ltd
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spelling my.ump.umpir.59212018-04-19T01:10:08Z http://umpir.ump.edu.my/id/eprint/5921/ Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter M. R., Mohamed H., Ahmad M. N., Abu Seman S., Razali M. S., Najib TK Electrical engineering. Electronics Nuclear engineering This paper presents an equivalent electrical circuit model for a unit cell all-vanadium redox flow battery (V-RFB). The developed V-RFB model consists of an open-circuit cell potential (Ecell(ORP)) which is in series with an ohmic internal resistance and parallel with an n-Resistor–Capacitor (n-RC) network. The Ecell(ORP) represents an intrinsic relationship of the V-RFB state-of-charge (SOC), while the n-RC networks represent the polarization characteristic and dynamic behaviour of the V-RFB. The Ecell(ORP) and ohmic resistance parameters are obtained through a direct measurement of an experimental setup of 25 cm2 unit cell laboratory unit V-RFB, whereas the two pairs of RC network parameters are identified through a recursive algorithm of extended Kalman filter (EKF). The accuracy of this model is verified with different pulse voltages at a few values of SOCs. Ultimately, the model is validated with an experimental charge–discharge characterisation of V-RFB system. Suggestion for system improvement is highlighted. Elsevier Ltd 2013-10-01 Article PeerReviewed M. R., Mohamed and H., Ahmad and M. N., Abu Seman and S., Razali and M. S., Najib (2013) Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter. Journal of Power Sources, 239. pp. 284-293. ISSN 0378-7753. (Published) http://dx.doi.org/10.1016/j.jpowsour.2013.03.127 DOI:10.1016/j.jpowsour.2013.03.127
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
M. R., Mohamed
H., Ahmad
M. N., Abu Seman
S., Razali
M. S., Najib
Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter
title Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter
title_full Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter
title_fullStr Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter
title_full_unstemmed Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter
title_short Electrical Circuit Model of a Vanadium Redox Flow Battery Using Extended Kalman Filter
title_sort electrical circuit model of a vanadium redox flow battery using extended kalman filter
topic TK Electrical engineering. Electronics Nuclear engineering
url http://umpir.ump.edu.my/id/eprint/5921/
http://dx.doi.org/10.1016/j.jpowsour.2013.03.127
url_provider http://umpir.ump.edu.my/