Modulation Strategy to Minimise RMS and Peak Currents in Dual Active Bridge Converter

Das, D and Basu, K (2020) Modulation Strategy to Minimise RMS and Peak Currents in Dual Active Bridge Converter. In: ECCE 2020 - IEEE Energy Conversion Congress and Exposition, 11- 15 October 2020, Virtual, Detroit, pp. 969-974.

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Abstract

Optimal operation of dual active bridge (DAB) converters has been extensively researched in literature. The modulation parameters of the DAB converter are chosen to minimise a given objective function which can be the RMS or the peak of inductor current. This paper presents a comparison of the optimal rms current problem and the optimal peak current problem. For medium power operation, a closed-form solution is derived for the modulation parameters which leads to minimum RMS currents. It is observed that the solution is computationally demanding and hence not suitable for real-time implementation. A hybrid modulation strategy is proposed which achieves both optimal rms and peak currents and is simple to implement in real-time. Simulation and experimental results confirm the theoretical analysis. © 2020 IEEE.

Item Type:	Conference Paper
Publication:	ECCE 2020 - IEEE Energy Conversion Congress and Exposition
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Energy conversion; Real time control, Closed form solutions; Dual active bridge converter; Dual active bridges; Hybrid modulation strategies; Modulation parameters; Modulation strategy; Objective functions; Real-time implementations, Modulation
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	11 Feb 2023 05:47
Last Modified:	11 Feb 2023 05:47
URI:	https://eprints.iisc.ac.in/id/eprint/80190

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