A double-input bidirectional DC-DC converter, with an innovative architecture, exploiting the use of only three switches, is taken into account in this paper. The modulation strategy proposed in the technical literature for controlling such a converter leads to a very low efficiency at low-load, because the converter is only able to operate in Continuous Conduction Mode when currents are low. A new modulation strategy, for exploiting Discontinuous Conduction Mode, is here proposed. The efficiency increase is evaluated with a MATLAB/Simulink Plecs simulation model. The control algorithm and the simulation model are validated with experimental results carried out on a converter prototype.

A New Modulation Strategy for Exploiting Discontinuous Conduction Mode in a Double-Input Three-Switch Bidirectional DC-DC Converter

Passalacqua M.;Marchesoni M.;Vaccaro L.
2020

Abstract

A double-input bidirectional DC-DC converter, with an innovative architecture, exploiting the use of only three switches, is taken into account in this paper. The modulation strategy proposed in the technical literature for controlling such a converter leads to a very low efficiency at low-load, because the converter is only able to operate in Continuous Conduction Mode when currents are low. A new modulation strategy, for exploiting Discontinuous Conduction Mode, is here proposed. The efficiency increase is evaluated with a MATLAB/Simulink Plecs simulation model. The control algorithm and the simulation model are validated with experimental results carried out on a converter prototype.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11567/1034074
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