Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application

Cao Shuyu; V. B. Sriram; Hossein Dehghani Tafti; K. V.Ravi Kishore; Yeo Howe Li; Anshuman Tripathi; Josep Pou

doi:10.1109/ACEPT.2017.8168624

Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application

Cao Shuyu, V. B. Sriram, Hossein Dehghani Tafti, K. V.Ravi Kishore, Yeo Howe Li, Anshuman Tripathi, Josep Pou

Nanyang Technological University

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

10 Citations (Scopus)

Abstract

This paper presents an effective two stage DAB charging-up control method for modular DC-DC converters with low voltage side common DC bus voltage starting from zero. In 1st stage of charging, the DAB controller is modified to allow variable duty cycle control of medium voltage side DAB converter. In this stage, a constant charging-up current is applied so that low voltage side DC link voltage is charged up linearly. In the 2nd stage of charging control, the normal dual voltage and current control loops are applied. At the end of 2nd charging up stage, the DAB controller is ready for normal power regulation. The proposed DAB charging control method is applicable for modular SST start-up application for both grid tied and standalone application. The important advantage of the proposed DAB charging control method is that the DC-DC converter performance is robust to DC-DC converter circuit parameter variation and operation condition variation among DAB modules. Another attractive advantage is that the proposed solution is purely DAB control algorithm change without requiring extra circuit component in start-up charging process.

Original language	English
Title of host publication	2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-7
Number of pages	7
ISBN (Electronic)	9781538609712
DOIs	https://doi.org/10.1109/ACEPT.2017.8168624
Publication status	Published - Dec 5 2017
Externally published	Yes
Event	2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017 - Singapore, Singapore Duration: Oct 24 2017 → Oct 26 2017

Publication series

Name	2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
Volume	2017-December

Conference

Conference	2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
Country/Territory	Singapore
City	Singapore
Period	10/24/17 → 10/26/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

ASJC Scopus Subject Areas

Transportation
Energy Engineering and Power Technology
Automotive Engineering

Keywords

DC link
DC-DC converter
Dual active bridge (DAB)
High frequency (HF) transformer
Low voltage (LV)
Medium voltage (MV)
Solid state transformer (SST)
Zero voltage switching (ZVS)

Access to Document

10.1109/ACEPT.2017.8168624

Cite this

Shuyu, C., Sriram, V. B., Tafti, H. D., Kishore, K. V. R., Li, Y. H., Tripathi, A., & Pou, J. (2017). Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application. In 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017 (pp. 1-7). (2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017; Vol. 2017-December). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ACEPT.2017.8168624

Shuyu, Cao ; Sriram, V. B. ; Tafti, Hossein Dehghani et al. / Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application. 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1-7 (2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017).

@inproceedings{06f806410e0843f0a4c836445c987672,

title = "Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application",

abstract = "This paper presents an effective two stage DAB charging-up control method for modular DC-DC converters with low voltage side common DC bus voltage starting from zero. In 1st stage of charging, the DAB controller is modified to allow variable duty cycle control of medium voltage side DAB converter. In this stage, a constant charging-up current is applied so that low voltage side DC link voltage is charged up linearly. In the 2nd stage of charging control, the normal dual voltage and current control loops are applied. At the end of 2nd charging up stage, the DAB controller is ready for normal power regulation. The proposed DAB charging control method is applicable for modular SST start-up application for both grid tied and standalone application. The important advantage of the proposed DAB charging control method is that the DC-DC converter performance is robust to DC-DC converter circuit parameter variation and operation condition variation among DAB modules. Another attractive advantage is that the proposed solution is purely DAB control algorithm change without requiring extra circuit component in start-up charging process.",

keywords = "DC link, DC-DC converter, Dual active bridge (DAB), High frequency (HF) transformer, Low voltage (LV), Medium voltage (MV), Solid state transformer (SST), Zero voltage switching (ZVS)",

author = "Cao Shuyu and Sriram, {V. B.} and Tafti, {Hossein Dehghani} and Kishore, {K. V.Ravi} and Li, {Yeo Howe} and Anshuman Tripathi and Josep Pou",

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doi = "10.1109/ACEPT.2017.8168624",

language = "English",

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Shuyu, C, Sriram, VB, Tafti, HD, Kishore, KVR, Li, YH, Tripathi, A & Pou, J 2017, Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application. in 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017. 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017, vol. 2017-December, Institute of Electrical and Electronics Engineers Inc., pp. 1-7, 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017, Singapore, Singapore, 10/24/17. https://doi.org/10.1109/ACEPT.2017.8168624

Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application. / Shuyu, Cao; Sriram, V. B.; Tafti, Hossein Dehghani et al.
2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-7 (2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017; Vol. 2017-December).

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

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T1 - Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application

AU - Shuyu, Cao

AU - Sriram, V. B.

AU - Tafti, Hossein Dehghani

AU - Kishore, K. V.Ravi

AU - Li, Yeo Howe

AU - Tripathi, Anshuman

AU - Pou, Josep

PY - 2017/12/5

Y1 - 2017/12/5

N2 - This paper presents an effective two stage DAB charging-up control method for modular DC-DC converters with low voltage side common DC bus voltage starting from zero. In 1st stage of charging, the DAB controller is modified to allow variable duty cycle control of medium voltage side DAB converter. In this stage, a constant charging-up current is applied so that low voltage side DC link voltage is charged up linearly. In the 2nd stage of charging control, the normal dual voltage and current control loops are applied. At the end of 2nd charging up stage, the DAB controller is ready for normal power regulation. The proposed DAB charging control method is applicable for modular SST start-up application for both grid tied and standalone application. The important advantage of the proposed DAB charging control method is that the DC-DC converter performance is robust to DC-DC converter circuit parameter variation and operation condition variation among DAB modules. Another attractive advantage is that the proposed solution is purely DAB control algorithm change without requiring extra circuit component in start-up charging process.

AB - This paper presents an effective two stage DAB charging-up control method for modular DC-DC converters with low voltage side common DC bus voltage starting from zero. In 1st stage of charging, the DAB controller is modified to allow variable duty cycle control of medium voltage side DAB converter. In this stage, a constant charging-up current is applied so that low voltage side DC link voltage is charged up linearly. In the 2nd stage of charging control, the normal dual voltage and current control loops are applied. At the end of 2nd charging up stage, the DAB controller is ready for normal power regulation. The proposed DAB charging control method is applicable for modular SST start-up application for both grid tied and standalone application. The important advantage of the proposed DAB charging control method is that the DC-DC converter performance is robust to DC-DC converter circuit parameter variation and operation condition variation among DAB modules. Another attractive advantage is that the proposed solution is purely DAB control algorithm change without requiring extra circuit component in start-up charging process.

KW - DC link

KW - DC-DC converter

KW - Dual active bridge (DAB)

KW - High frequency (HF) transformer

KW - Low voltage (LV)

KW - Medium voltage (MV)

KW - Solid state transformer (SST)

KW - Zero voltage switching (ZVS)

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DO - 10.1109/ACEPT.2017.8168624

M3 - Conference contribution

AN - SCOPUS:85045997671

T3 - 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017

SP - 1

EP - 7

BT - 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017

Y2 - 24 October 2017 through 26 October 2017

ER -

Shuyu C, Sriram VB, Tafti HD, Kishore KVR, Li YH, Tripathi A et al. Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application. In 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1-7. (2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017). doi: 10.1109/ACEPT.2017.8168624

Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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Cite this