Bi-directional converter with low input/output current ripple for renewable energy applications

In this paper, a new wide conversion ratio step-up/down bi-directional converter is presented. The proposed converter is derived from the conventional Single Ended Primary Inductor Converter (SEPIC) topology and it can operate into a capacitor-diode voltage multiplier, which offers simple structure,...

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Bibliographic Details
Main Authors: Fardoun, A. A., Ismail, E. H., Sabzali, A. J., Al-Saffar, M. A.
Format: Conference Proceeding
Language:English
Subjects:
Batteries
Bidirectional control
Capacitors
Inductors
Switches
Switching circuits
Topology
Online Access:Request full text
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Summary:In this paper, a new wide conversion ratio step-up/down bi-directional converter is presented. The proposed converter is derived from the conventional Single Ended Primary Inductor Converter (SEPIC) topology and it can operate into a capacitor-diode voltage multiplier, which offers simple structure, reduced electromagnetic interference (EMI), and reduced semiconductors' voltage stresses. Other advantages include: continuous input/output current, extended step-up and step-down voltage conversion ratio without extreme low or high duty-cycle, simple control circuitry, and near zero input and output current ripples compared to other converter topologies. The low current ripple and high gain features result in a longer life-span and lower cost of the energy storage battery system. The theoretical analysis results obtained with the proposed structure are compared with other bi-direction converter topologies. Simulation and experimental results are presented to verify the performance of the proposed bi-directional converter.
ISSN:2329-3721
2329-3748
DOI:10.1109/ECCE.2011.6064217