Optimal control and DC fault ride-through of transmission level, MMC-based, isolated DC/DC converter

Dragan Jovcic; Huibin Zhang

doi:10.1109/PESGM.2016.7741927

Optimal control and DC fault ride-through of transmission level, MMC-based, isolated DC/DC converter

Dragan Jovcic, Huibin Zhang

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

2 Citations (Scopus)

Abstract

This paper investigates an optimum control strategy for an isolated dual-active-bridge DC/DC converter based on MMC (Modular Multilevel Converter) technology. The control goal is to achieve minimal current magnitude for given power transfer and to provide fast control for full positive and negative power range. The control strategy is derived in the rotating dq frame. The optimal operation is achieved using outer control loops that maintain and balance magnitude of both modulation indices to 0.95. The inner current control loops are used on both bridges in order to limit current magnitude under faults. The controller facilitates normal operation of DC/DC converter under DC faults. The validity of the converter controller is verified using a 1GW, 500kV/640kV test converter on a detailed PSCAD model for both normal and fault conditions.

Original language	English
Title of host publication	2016 IEEE Power and Energy Society General Meeting, PESGM 2016
Publisher	IEEE Computer Society
Volume	2016-November
ISBN (Electronic)	9781509041688
DOIs	https://doi.org/10.1109/PESGM.2016.7741927
Publication status	Published - 10 Nov 2016
Event	2016 IEEE Power and Energy Society General Meeting, PESGM 2016 - Boston, United States Duration: 17 Jul 2016 → 21 Jul 2016

Conference

Conference	2016 IEEE Power and Energy Society General Meeting, PESGM 2016
Country/Territory	United States
City	Boston
Period	17/07/16 → 21/07/16

Bibliographical note

Footnotes
This study is sponsored by the Engineering and Physical Sciences Research Council (EPSRC) grant no EP/K006428/1, 2013.

Keywords

DC-DC power converters
HVDC transmission
Power system protection
Power system simulation
Power transformers

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/PESGM.2016.7741927Licence: Unspecified

Cite this

Jovcic, D & Zhang, H 2016, Optimal control and DC fault ride-through of transmission level, MMC-based, isolated DC/DC converter. in 2016 IEEE Power and Energy Society General Meeting, PESGM 2016. vol. 2016-November, 7741927, IEEE Computer Society, 2016 IEEE Power and Energy Society General Meeting, PESGM 2016, Boston, United States, 17/07/16. https://doi.org/10.1109/PESGM.2016.7741927

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title = "Optimal control and DC fault ride-through of transmission level, MMC-based, isolated DC/DC converter",

abstract = "This paper investigates an optimum control strategy for an isolated dual-active-bridge DC/DC converter based on MMC (Modular Multilevel Converter) technology. The control goal is to achieve minimal current magnitude for given power transfer and to provide fast control for full positive and negative power range. The control strategy is derived in the rotating dq frame. The optimal operation is achieved using outer control loops that maintain and balance magnitude of both modulation indices to 0.95. The inner current control loops are used on both bridges in order to limit current magnitude under faults. The controller facilitates normal operation of DC/DC converter under DC faults. The validity of the converter controller is verified using a 1GW, 500kV/640kV test converter on a detailed PSCAD model for both normal and fault conditions.",

keywords = "DC-DC power converters, HVDC transmission, Power system protection, Power system simulation, Power transformers",

author = "Dragan Jovcic and Huibin Zhang",

note = "Footnotes This study is sponsored by the Engineering and Physical Sciences Research Council (EPSRC) grant no EP/K006428/1, 2013. ; 2016 IEEE Power and Energy Society General Meeting, PESGM 2016 ; Conference date: 17-07-2016 Through 21-07-2016",

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T1 - Optimal control and DC fault ride-through of transmission level, MMC-based, isolated DC/DC converter

AU - Jovcic, Dragan

AU - Zhang, Huibin

N1 - Footnotes This study is sponsored by the Engineering and Physical Sciences Research Council (EPSRC) grant no EP/K006428/1, 2013.

PY - 2016/11/10

Y1 - 2016/11/10

N2 - This paper investigates an optimum control strategy for an isolated dual-active-bridge DC/DC converter based on MMC (Modular Multilevel Converter) technology. The control goal is to achieve minimal current magnitude for given power transfer and to provide fast control for full positive and negative power range. The control strategy is derived in the rotating dq frame. The optimal operation is achieved using outer control loops that maintain and balance magnitude of both modulation indices to 0.95. The inner current control loops are used on both bridges in order to limit current magnitude under faults. The controller facilitates normal operation of DC/DC converter under DC faults. The validity of the converter controller is verified using a 1GW, 500kV/640kV test converter on a detailed PSCAD model for both normal and fault conditions.

AB - This paper investigates an optimum control strategy for an isolated dual-active-bridge DC/DC converter based on MMC (Modular Multilevel Converter) technology. The control goal is to achieve minimal current magnitude for given power transfer and to provide fast control for full positive and negative power range. The control strategy is derived in the rotating dq frame. The optimal operation is achieved using outer control loops that maintain and balance magnitude of both modulation indices to 0.95. The inner current control loops are used on both bridges in order to limit current magnitude under faults. The controller facilitates normal operation of DC/DC converter under DC faults. The validity of the converter controller is verified using a 1GW, 500kV/640kV test converter on a detailed PSCAD model for both normal and fault conditions.

KW - DC-DC power converters

KW - HVDC transmission

KW - Power system protection

KW - Power system simulation

KW - Power transformers

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U2 - 10.1109/PESGM.2016.7741927

DO - 10.1109/PESGM.2016.7741927

M3 - Published conference contribution

AN - SCOPUS:85001799518

VL - 2016-November

BT - 2016 IEEE Power and Energy Society General Meeting, PESGM 2016

PB - IEEE Computer Society

T2 - 2016 IEEE Power and Energy Society General Meeting, PESGM 2016

Y2 - 17 July 2016 through 21 July 2016

ER -

Optimal control and DC fault ride-through of transmission level, MMC-based, isolated DC/DC converter

Abstract

Conference

Bibliographical note

Keywords

UN SDGs

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