Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements

Weixing Lin; Dragan Jovcic; Samuel Nguefeu; Hani Saad

doi:10.1109/TPWRD.2015.2475130

Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements

Weixing Lin, Dragan Jovcic, Samuel Nguefeu, Hani Saad

Research output: Contribution to journal › Article › peer-review

208 Citations (Scopus)

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Abstract

Design and operation of FB (full bridge) MMC that meets HVDC specifications are studied in this paper. Three new design parameters: the over-modulation index (kMMC), the DC modulation index (Mdc), the minimal DC voltage (Vminpu) are introduced to specify the operation of a FB MMC. Power increase and semiconductor count increase with the increase of kMMC is analyzed to understand benefits of over-modulation. The required number of submodules and the number of more-costly FB submodules for specified rated dc voltage, Vminpu and kMMC are calculated. The relationship of the submodule inserting logic and dynamics of an arm is analyzed. The submodule voltage balancing is studied and the constraints on the required number of FB submodules are deduced. The capability of over-modulation and the operation under low DC voltage with optimal submodule count are verified using EMTP simulation.

Original language	English
Pages (from-to)	1342-1350
Number of pages	9
Journal	IEEE Transactions on Power Delivery
Volume	31
Issue number	3
Early online date	31 Aug 2015
DOIs	https://doi.org/10.1109/TPWRD.2015.2475130
Publication status	Published - Jun 2016

Bibliographical note

This project is funded by RTE, Paris, France

Keywords

AC-DC power conversion
DC power systems
DC power transmission
HVDC converters
HVDC transmission

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R1.Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements
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Accepted author manuscript, 687 KBLicence: Unspecified

Dragan Jovcic
- Engineering, Aberdeen HVDC Research Centre
- Centre for Energy Transition
- Engineering, Engineering - Chair in Engineering
Person: Academic

Cite this

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title = "Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements",

abstract = "Design and operation of FB (full bridge) MMC that meets HVDC specifications are studied in this paper. Three new design parameters: the over-modulation index (kMMC), the DC modulation index (Mdc), the minimal DC voltage (Vminpu) are introduced to specify the operation of a FB MMC. Power increase and semiconductor count increase with the increase of kMMC is analyzed to understand benefits of over-modulation. The required number of submodules and the number of more-costly FB submodules for specified rated dc voltage, Vminpu and kMMC are calculated. The relationship of the submodule inserting logic and dynamics of an arm is analyzed. The submodule voltage balancing is studied and the constraints on the required number of FB submodules are deduced. The capability of over-modulation and the operation under low DC voltage with optimal submodule count are verified using EMTP simulation.",

keywords = "AC-DC power conversion, DC power systems, DC power transmission, HVDC converters, HVDC transmission ",

author = "Weixing Lin and Dragan Jovcic and Samuel Nguefeu and Hani Saad",

note = "This project is funded by RTE, Paris, France",

year = "2016",

month = jun,

doi = "10.1109/TPWRD.2015.2475130",

language = "English",

volume = "31",

pages = "1342--1350",

journal = "IEEE Transactions on Power Delivery",

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T1 - Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements

AU - Lin, Weixing

AU - Jovcic, Dragan

AU - Nguefeu, Samuel

AU - Saad, Hani

N1 - This project is funded by RTE, Paris, France

PY - 2016/6

Y1 - 2016/6

N2 - Design and operation of FB (full bridge) MMC that meets HVDC specifications are studied in this paper. Three new design parameters: the over-modulation index (kMMC), the DC modulation index (Mdc), the minimal DC voltage (Vminpu) are introduced to specify the operation of a FB MMC. Power increase and semiconductor count increase with the increase of kMMC is analyzed to understand benefits of over-modulation. The required number of submodules and the number of more-costly FB submodules for specified rated dc voltage, Vminpu and kMMC are calculated. The relationship of the submodule inserting logic and dynamics of an arm is analyzed. The submodule voltage balancing is studied and the constraints on the required number of FB submodules are deduced. The capability of over-modulation and the operation under low DC voltage with optimal submodule count are verified using EMTP simulation.

AB - Design and operation of FB (full bridge) MMC that meets HVDC specifications are studied in this paper. Three new design parameters: the over-modulation index (kMMC), the DC modulation index (Mdc), the minimal DC voltage (Vminpu) are introduced to specify the operation of a FB MMC. Power increase and semiconductor count increase with the increase of kMMC is analyzed to understand benefits of over-modulation. The required number of submodules and the number of more-costly FB submodules for specified rated dc voltage, Vminpu and kMMC are calculated. The relationship of the submodule inserting logic and dynamics of an arm is analyzed. The submodule voltage balancing is studied and the constraints on the required number of FB submodules are deduced. The capability of over-modulation and the operation under low DC voltage with optimal submodule count are verified using EMTP simulation.

KW - AC-DC power conversion

KW - DC power systems

KW - DC power transmission

KW - HVDC converters

KW - HVDC transmission

U2 - 10.1109/TPWRD.2015.2475130

DO - 10.1109/TPWRD.2015.2475130

M3 - Article

SN - 0885-8977

VL - 31

SP - 1342

EP - 1350

JO - IEEE Transactions on Power Delivery

JF - IEEE Transactions on Power Delivery

IS - 3

ER -

Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements

Abstract

Bibliographical note

Keywords

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Dragan Jovcic

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