Two-level state-space-based control strategy of Katium-power-converter-based Li-ion battery charger for railway applications - Modelling and Optinal Decision for Uncertain Systems Accéder directement au contenu
Communication Dans Un Congrès Année : 2021

Two-level state-space-based control strategy of Katium-power-converter-based Li-ion battery charger for railway applications

Résumé

This paper proposes a two-level cascaded control strategy for a DC-DC-Katium-power-converter-based battery charger for railway applications. The Katium converter represents a particular DC-DC power converter topology, which is employed in the considered application as a Li-ion battery charger and a low-voltage power supply for a load composed of a resistive part and a constant-power part. The system model has a bilinear nature. A control-oriented modelling leads to obtaining a family of linear parameter-varying models by linearization around successive operating points, which mainly depend on the load power to be supplied. The battery current regulation is a disturbance-rejection problem, involving both constant and periodic (sinusoidal) disturbances. This problem is here solved by means of a two-level cascaded control structure whose lower level relies upon a pole-placement-based control on the previously derived state-space linear parameter-varying model, enriched with both usual integrators – for constant disturbance rejection – and resonant integrators, ensuring sinusoidal disturbance rejection. MATLAB®/Simulink® is chosen as software environment for numerical simulation closed-loop validation.
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Dates et versions

hal-03265046 , version 1 (18-06-2021)

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Citer

Antoneta Iuliana Bratcu, François Ihuel, Alexandre Contrepois. Two-level state-space-based control strategy of Katium-power-converter-based Li-ion battery charger for railway applications. EPE'21-ECCE Europe 2021 - The 23rd European Conference on Power Electronics and Applications (EPE ECCE 2021), Sep 2021, Ghent, Belgium. ⟨10.23919/EPE21ECCEEurope50061.2021.9570408⟩. ⟨hal-03265046⟩
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