Comparison of bipolar sub-modules for the alternate arm converter

Harith R. Wickramasinghe; Georgios Konstantinou; Josep Pou

doi:10.1016/j.epsr.2017.01.023

Comparison of bipolar sub-modules for the alternate arm converter

Harith R. Wickramasinghe^*, Georgios Konstantinou, Josep Pou

^*Corresponding author for this work

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

21 Citations (Scopus)

Abstract

The alternate arm converter (AAC) is an emerging dc-fault tolerant multilevel converter topology aimed at high-power and HVDC applications. This paper addresses the suitability of modular multilevel converter (MMC) submodules (SMs) for the AAC. Bipolar SMs are applicable for AACs depending on the complexity, controllability, device count, and operating losses. However, only the full-bridge SM (FB-SM) and the cross-connected SM (CC-SM) are fully controllable and functional in AACs. Based on the loss analysis of FB-SM- and CC-SM-based AAC with different device configurations, it is shown that: (i) complex SM structures do not benefit the operation of AAC, and (ii) the FB-SM provides the most functional advantages in an AAC.

Original language	English
Pages (from-to)	115-123
Number of pages	9
Journal	Electric Power Systems Research
Volume	146
DOIs	https://doi.org/10.1016/j.epsr.2017.01.023
Publication status	Published - May 1 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

ASJC Scopus Subject Areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Keywords

Alternate arm converter
Cross-connected submodules
Identical semiconductor devices
Losses

Access to Document

10.1016/j.epsr.2017.01.023

Cite this

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title = "Comparison of bipolar sub-modules for the alternate arm converter",

abstract = "The alternate arm converter (AAC) is an emerging dc-fault tolerant multilevel converter topology aimed at high-power and HVDC applications. This paper addresses the suitability of modular multilevel converter (MMC) submodules (SMs) for the AAC. Bipolar SMs are applicable for AACs depending on the complexity, controllability, device count, and operating losses. However, only the full-bridge SM (FB-SM) and the cross-connected SM (CC-SM) are fully controllable and functional in AACs. Based on the loss analysis of FB-SM- and CC-SM-based AAC with different device configurations, it is shown that: (i) complex SM structures do not benefit the operation of AAC, and (ii) the FB-SM provides the most functional advantages in an AAC.",

keywords = "Alternate arm converter, Cross-connected submodules, Identical semiconductor devices, Losses",

author = "Wickramasinghe, {Harith R.} and Georgios Konstantinou and Josep Pou",

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journal = "Electric Power Systems Research",

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TY - JOUR

T1 - Comparison of bipolar sub-modules for the alternate arm converter

AU - Wickramasinghe, Harith R.

AU - Konstantinou, Georgios

AU - Pou, Josep

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The alternate arm converter (AAC) is an emerging dc-fault tolerant multilevel converter topology aimed at high-power and HVDC applications. This paper addresses the suitability of modular multilevel converter (MMC) submodules (SMs) for the AAC. Bipolar SMs are applicable for AACs depending on the complexity, controllability, device count, and operating losses. However, only the full-bridge SM (FB-SM) and the cross-connected SM (CC-SM) are fully controllable and functional in AACs. Based on the loss analysis of FB-SM- and CC-SM-based AAC with different device configurations, it is shown that: (i) complex SM structures do not benefit the operation of AAC, and (ii) the FB-SM provides the most functional advantages in an AAC.

AB - The alternate arm converter (AAC) is an emerging dc-fault tolerant multilevel converter topology aimed at high-power and HVDC applications. This paper addresses the suitability of modular multilevel converter (MMC) submodules (SMs) for the AAC. Bipolar SMs are applicable for AACs depending on the complexity, controllability, device count, and operating losses. However, only the full-bridge SM (FB-SM) and the cross-connected SM (CC-SM) are fully controllable and functional in AACs. Based on the loss analysis of FB-SM- and CC-SM-based AAC with different device configurations, it is shown that: (i) complex SM structures do not benefit the operation of AAC, and (ii) the FB-SM provides the most functional advantages in an AAC.

KW - Alternate arm converter

KW - Cross-connected submodules

KW - Identical semiconductor devices

KW - Losses

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JO - Electric Power Systems Research

JF - Electric Power Systems Research

ER -

Comparison of bipolar sub-modules for the alternate arm converter

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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