Generalized small-signal modelling of dual active bridge DC/DC converter

Osama M. Hebala; Ahmed A. Aboushady; Khaled H. Ahmed; Sam Burgess; Radhakrishna Prabhu

doi:10.1109/ICRERA.2018.8567014

Generalized small-signal modelling of dual active bridge DC/DC converter

Osama M. Hebala, Ahmed A. Aboushady, Khaled H. Ahmed, Sam Burgess, Radhakrishna Prabhu

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

13 Citations (Scopus)

21 Downloads (Pure)

Abstract

this paper presents a novel generalised approach of the small-signal modelling of dual active bridge (DAB) DC/DC converter. The adopted analysis is based on a per-unit fundamental frequency representation of the DAB. The outcome of the proposed modelling approach is a small signal, linearised, state-space DAB model; which is considered as a main building block for future control applications. The developed small signal DAB model includes all possible degrees of freedom affecting the performance of the DAB; this includes the voltage conversion ratio to allow the study of all DAB operation modes (i.e.: unity-gain and buck/boost modes.). Furthermore, since triple phase shift control (TPS) is used in this development work, the proposed model incorporates phase shift in addition to duty ratios. This feature allows for bridge voltage regulation, which is essential for efficient DAB operation in the case of buck/boost operation. Another key achievement is that the proposed small signal modelling methodology can be applied to any bidirectional DC-DC converter regardless of ratings, parameter values and number of ports. Extensive simulation is carried out to verify the proposed analysis.

Original language	English
Title of host publication	7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	914-919
Number of pages	6
ISBN (Electronic)	9781538659823
DOIs	https://doi.org/10.1109/ICRERA.2018.8567014
Publication status	Published - 10 Dec 2018
Event	7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018 - Paris, France Duration: 14 Oct 2018 → 17 Oct 2018

Conference

Conference	7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
Country/Territory	France
City	Paris
Period	14/10/18 → 17/10/18

Keywords

dual active bridge (DAB)
triple phase shift (TPS)
DC/DC converter

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10.1109/ICRERA.2018.8567014

Hebala-etal-ICRERA2018-Generalized-small-signal-modelling-of-dual-active-bridge-DC-DC-converterAccepted author manuscript, 2.03 MB

Cite this

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title = "Generalized small-signal modelling of dual active bridge DC/DC converter",

abstract = "this paper presents a novel generalised approach of the small-signal modelling of dual active bridge (DAB) DC/DC converter. The adopted analysis is based on a per-unit fundamental frequency representation of the DAB. The outcome of the proposed modelling approach is a small signal, linearised, state-space DAB model; which is considered as a main building block for future control applications. The developed small signal DAB model includes all possible degrees of freedom affecting the performance of the DAB; this includes the voltage conversion ratio to allow the study of all DAB operation modes (i.e.: unity-gain and buck/boost modes.). Furthermore, since triple phase shift control (TPS) is used in this development work, the proposed model incorporates phase shift in addition to duty ratios. This feature allows for bridge voltage regulation, which is essential for efficient DAB operation in the case of buck/boost operation. Another key achievement is that the proposed small signal modelling methodology can be applied to any bidirectional DC-DC converter regardless of ratings, parameter values and number of ports. Extensive simulation is carried out to verify the proposed analysis.",

keywords = "dual active bridge (DAB), triple phase shift (TPS), DC/DC converter",

author = "Hebala, {Osama M.} and Aboushady, {Ahmed A.} and Ahmed, {Khaled H.} and Sam Burgess and Radhakrishna Prabhu",

note = "{\textcopyright} 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of copyrighted components of this work in other works.; 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018 ; Conference date: 14-10-2018 Through 17-10-2018",

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Hebala, OM, Aboushady, AA, Ahmed, KH, Burgess, S & Prabhu, R 2018, Generalized small-signal modelling of dual active bridge DC/DC converter. in 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018., 8567014, IEEE, Piscataway, NJ, pp. 914-919, 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018, Paris, France, 14/10/18. https://doi.org/10.1109/ICRERA.2018.8567014

Generalized small-signal modelling of dual active bridge DC/DC converter. / Hebala, Osama M.; Aboushady, Ahmed A.; Ahmed, Khaled H. et al.

7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018. Piscataway, NJ : IEEE, 2018. p. 914-919 8567014.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Generalized small-signal modelling of dual active bridge DC/DC converter

AU - Hebala, Osama M.

AU - Aboushady, Ahmed A.

AU - Ahmed, Khaled H.

AU - Burgess, Sam

AU - Prabhu, Radhakrishna

N1 - © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of copyrighted components of this work in other works.

PY - 2018/12/10

Y1 - 2018/12/10

N2 - this paper presents a novel generalised approach of the small-signal modelling of dual active bridge (DAB) DC/DC converter. The adopted analysis is based on a per-unit fundamental frequency representation of the DAB. The outcome of the proposed modelling approach is a small signal, linearised, state-space DAB model; which is considered as a main building block for future control applications. The developed small signal DAB model includes all possible degrees of freedom affecting the performance of the DAB; this includes the voltage conversion ratio to allow the study of all DAB operation modes (i.e.: unity-gain and buck/boost modes.). Furthermore, since triple phase shift control (TPS) is used in this development work, the proposed model incorporates phase shift in addition to duty ratios. This feature allows for bridge voltage regulation, which is essential for efficient DAB operation in the case of buck/boost operation. Another key achievement is that the proposed small signal modelling methodology can be applied to any bidirectional DC-DC converter regardless of ratings, parameter values and number of ports. Extensive simulation is carried out to verify the proposed analysis.

AB - this paper presents a novel generalised approach of the small-signal modelling of dual active bridge (DAB) DC/DC converter. The adopted analysis is based on a per-unit fundamental frequency representation of the DAB. The outcome of the proposed modelling approach is a small signal, linearised, state-space DAB model; which is considered as a main building block for future control applications. The developed small signal DAB model includes all possible degrees of freedom affecting the performance of the DAB; this includes the voltage conversion ratio to allow the study of all DAB operation modes (i.e.: unity-gain and buck/boost modes.). Furthermore, since triple phase shift control (TPS) is used in this development work, the proposed model incorporates phase shift in addition to duty ratios. This feature allows for bridge voltage regulation, which is essential for efficient DAB operation in the case of buck/boost operation. Another key achievement is that the proposed small signal modelling methodology can be applied to any bidirectional DC-DC converter regardless of ratings, parameter values and number of ports. Extensive simulation is carried out to verify the proposed analysis.

KW - dual active bridge (DAB)

KW - triple phase shift (TPS)

KW - DC/DC converter

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U2 - 10.1109/ICRERA.2018.8567014

DO - 10.1109/ICRERA.2018.8567014

M3 - Conference contribution book

AN - SCOPUS:85060647697

SP - 914

EP - 919

BT - 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018

PB - IEEE

CY - Piscataway, NJ

T2 - 7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018

Y2 - 14 October 2018 through 17 October 2018

ER -

Generalized small-signal modelling of dual active bridge DC/DC converter

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