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Cited by 53HVDC Systems and Fault ProtectionMultilevel Inverters and ConvertersAdvanced DC-DC Converters

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Capacitor Voltage Estimation Scheme With Reduced Number of Sensors for Modular Multilevel Converters

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Abushafa, Osama SH. Mohamed, Gadoue, Shady M., Dahidah, Mohamed S. A., Atkinson, David J., Missailidis, Petros·2018·IEEE Journal of Emerging and Selected Topics in Power Electronics
DOI 10.1109/jestpe.2018.2797245
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Abstract

This paper presents a new method to measure the voltage across the submodule (SM) capacitors in a modular multilevel converter (MMC). The proposed technique requires only one voltage sensor per arm. This reduces the number of sensors required compared with conventional sensor-based methods. Therefore, the cost and complexity of the system are reduced, which in turn improves the converter's overall reliability. The proposed method employs an exponentially weighted recursive least square algorithm to estimate the SM capacitor voltages through the measured total arm voltage and the switching patterns of each SM. There is thus no need for extra sensors to measure these control signals as they are directly provided from the controller. The robustness of the proposed method is confirmed via introducing deviations for the capacitance values, dynamic load changes, dc voltage change, and startup transient condition. Simulation and experimentally validated results based on a single-phase MMC show the effectiveness of the proposed method in both, steady-state and dynamic operations.

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Citations

Cites

Research works printed but not linked: 31

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Metadata

Authors
Abushafa, O. S. M., Gadoue, S. M., Dahidah, M. S. A., Atkinson, D. J., & Missailidis, P.
Affiliations
  • Sabratha University (LY)
  • Aston University (GB)
  • Newcastle University (GB)
ORCID
Venue
IEEE Journal of Emerging and Selected Topics in Power Electronics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
2018-12
Volume
6
Issue
4
Pages
2086-2097
ISSN
  • 2168-6777 (ISSN-L)
  • 2168-6785
DOI
10.1109/jestpe.2018.2797245
OpenAlex
W2786439040
Cited by
53
References
1
Citations by year
2026: 2 · 2025: 8 · 2024: 5 · 2023: 7 · 2022: 11 · 2021: 13 · 2020: 4 · 2019: 3
FWCI
1.91
Type
journal article
Language
en
Open access
Licence
ieeexplore.ieee.org/Xplorehelp/downloads/license-information/IEEE.html (vor)
Locations
  • IEEE Journal of Emerging and Selected Topics in Power Electronics (publishedVersion)
  • Aston Publications Explorer (Aston University) (submittedVersion)
  • Newcastle University ePrints (Newcastle Univesity)
Funders
Libyan Ministry of Higher Education and Scientific Research and Scholar Program of Zawia and Sabratha Universities
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › HVDC Systems and Fault Protection
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
Keywords
modular multilevel converter, sensorless estimation, switching patterns, reduced sensor count, dynamic load changes, start-up transient

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