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

Kupper, Martin 1; Brenneisen, Jochen 1; Stark, Oliver 1; Krebs, Stefan 1; Hohmann, Sören 1
1 Institut für Regelungs- und Steuerungssysteme (IRS), Karlsruher Institut für Technologie (KIT)


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.

Postprint §
DOI: 10.5445/IR/1000084691
Veröffentlicht am 10.06.2019
DOI: 10.1109/CCDC.2018.8408010
Zitationen: 4
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Regelungs- und Steuerungssysteme (IRS)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 09.06.2018
Sprache Englisch
Identifikator ISBN: 978-1-5386-1244-6
KITopen-ID: 1000084691
HGF-Programm 37.06.01 (POF III, LK 01) Networks and Storage Integration
Erschienen in 2018 Chinese Control And Decision Conference (CCDC)
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 5071-5078
Bemerkung zur Veröffentlichung
Schlagwörter State of Charge estimation, Current estimation, Kalman filter, Cascaded systems, Fractional order, Battery pack, Large-scale, Lithium-ion
Nachgewiesen in Dimensions
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