The objective of this paper is to investigate the properties of the Half Bride Current Source bidirectional DC to DC converter used to interface supercapacitors with batteries in a hybrid storage system. This work focuses on the benefits of applying synchronous rectification to the switches of the primary and the secondary side, both in terms of efficiency and control simplicity. In fact, by using this modulation scheme, it can be demonstrated that a single parameter (the duty ratio, D, of the dc link side top switch) can be used to control the converter under every operating condition. Furthermore, an average model of the converter valid in every operating condition is derived and utilized as a tool for the design of the control system. This model includes the effects of parasitic elements (mainly the leakage inductance of the transformer) and snubbers. Both the synchronous rectification switching scheme and the average model, have been experimentally validated with a 3 kW converter prototype. Also, the performance of a control strategy designed with such model are shown experimentally.

Analysis, modeling and control of Half-Bridge Current-Source converter for supercapacitor applications / J., Garcia; P., Garcia; GIULII CAPPONI, Fabio; Borocci, Gabriele; DE DONATO, Giulio. - ELETTRONICO. - (2014), pp. 3786-3793. (Intervento presentato al convegno IEEE Energy Conversion Congress and Exposition tenutosi a Pittsburgh (USA) nel 14-18 settembre 2014) [10.1109/ECCE.2014.6953916].

Analysis, modeling and control of Half-Bridge Current-Source converter for supercapacitor applications

GIULII CAPPONI, Fabio;BOROCCI, GABRIELE;DE DONATO, Giulio
2014

Abstract

The objective of this paper is to investigate the properties of the Half Bride Current Source bidirectional DC to DC converter used to interface supercapacitors with batteries in a hybrid storage system. This work focuses on the benefits of applying synchronous rectification to the switches of the primary and the secondary side, both in terms of efficiency and control simplicity. In fact, by using this modulation scheme, it can be demonstrated that a single parameter (the duty ratio, D, of the dc link side top switch) can be used to control the converter under every operating condition. Furthermore, an average model of the converter valid in every operating condition is derived and utilized as a tool for the design of the control system. This model includes the effects of parasitic elements (mainly the leakage inductance of the transformer) and snubbers. Both the synchronous rectification switching scheme and the average model, have been experimentally validated with a 3 kW converter prototype. Also, the performance of a control strategy designed with such model are shown experimentally.
2014
IEEE Energy Conversion Congress and Exposition
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Analysis, modeling and control of Half-Bridge Current-Source converter for supercapacitor applications / J., Garcia; P., Garcia; GIULII CAPPONI, Fabio; Borocci, Gabriele; DE DONATO, Giulio. - ELETTRONICO. - (2014), pp. 3786-3793. (Intervento presentato al convegno IEEE Energy Conversion Congress and Exposition tenutosi a Pittsburgh (USA) nel 14-18 settembre 2014) [10.1109/ECCE.2014.6953916].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/567754
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