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Postprint
DOI: 10.5445/IR/1000084691
Frei zugänglich ab 10.06.2019
Originalveröffentlichung
DOI: 10.1109/CCDC.2018.8408010
Scopus
Zitationen: 1

Cascaded Fractional Kalman Filtering for State and Current Estimation of Large-Scale Lithium-Ion Battery Packs

Kupper, Martin; Brenneisen, Jochen; Stark, Oliver; Krebs, Stefan; Hohmann, Sören

Abstract:
In this paper, a cascaded fractional Kalman filter for state of charge and branch current estimation of large-scale battery systems is proposed. As a centralized approach for the estimation of a large-scale system is costly in terms of effort and time, a partition into smaller and, therefore, simpler subsystems is applied. Since the overall system is divided into smaller units, a local computation is allowed and complexity reduced. In these distributed systems, usually, the subsystems communicate with each other to exchange relevant data. Using a model based on mesh currents, we receive a cascaded system structure which results in a hierarchical arrangement of all subsystems. This concludes in a one-directional information flow and, therefore, reduces the overall communication effort. Using this proposed approach, it is not only possible to estimate the states of each branch locally but also to calculate the branch currents when the total current is known. Finally, a practical test with real measurement data is presented.


Zugehörige Institution(en) am KIT Institut für Regelungs- und Steuerungssysteme (IRS)
Publikationstyp Proceedingsbeitrag
Jahr 2018
Sprache Englisch
Identifikator ISBN: 978-1-5386-1244-6
URN: urn:nbn:de:swb:90-846910
KITopen ID: 1000084691
Erschienen in 2018 Chinese Control And Decision Conference (CCDC)
Verlag IEEE, Piscataway, NJ
Seiten 5071-5078
Bemerkung zur Veröffentlichung https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8408010
Schlagworte State of Charge estimation, Current estimation, Kalman filter, Cascaded systems, Fractional order, Battery pack, Large-scale, Lithium-ion
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