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Ingeniería

versão impressa ISSN 0121-750X

Resumo

RAMOS-PAJA, Carlos Andrés; SERNA-GARCES, Sergio Ignacio  e  GONZALEZ-MONTOYA, Daniel. Power Conversion System for Hybrid Battery-Capacitor Storage. ing. [online]. 2020, vol.25, n.2, pp.194-211. ISSN 0121-750X.  https://doi.org/10.14483/23448393.15741.

Context:

Due to the low emissions of CO2 generated by electric systems, those solutions have been receiving attention from industries and academia. However, the electrical storage systems required for a large amount of applications must have high energy and power densities.

Method:

To meet those requirements, this paper proposes an active hybrid energy storage system formed by a battery, i.e. a device with a high energy density, and a capacitor, i.e. a device with a high power capability. The proposed solution also protects the battery by limiting the current derivative.

Results:

Two sliding-mode controllers are designed to regulate both the battery current and the load voltage. The design process guarantees global stability and safe battery operation.

Conclusions:

The controller avoids battery degradation caused by the high-frequency current components since the capacitor assumes those components as demanded by the load profile.

Palavras-chave : Battery; Boost converter; Buck converter; capacitor; hybrid electric storage system; slidingmode controller..

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