Modified half-bridge modular multilevel converter for HVDC systems with DC fault ride-through capability

K. H. Ahmed, A. A. Aboushady

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

One of the main challenges of voltage source converter based HVDC systems is DC faults. In this paper, two different modified half-bridge modular multilevel converter topologies are proposed. The proposed converters offer a fault tolerant against the most severe pole-to-pole DC faults. The converter comprises three switches or two switches and 4 diodes in each cell, which can result in less cost and losses compared to the full-bridge modular multilevel converter. Converter structure and controls are presented including the converter modulation and capacitors balancing. MATLAB/SIMULINK simulations are carried out to verify converter operation in normal and faulty conditions.

Original languageEnglish
Title of host publicationIndustrial Electronics Society, IECON 2014
Subtitle of host publication40th Annual Conference of the IEEE
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4676-4682
Number of pages7
ISBN (Electronic)9781479940325
ISBN (Print)9781479940318
DOIs
Publication statusPublished - 29 Oct 2014
Event40th Annual Conference of the IEEE Industrial Electronics Society - Dallas, Texas, United States
Duration: 29 Oct 20141 Nov 2014

Conference

Conference40th Annual Conference of the IEEE Industrial Electronics Society
Abbreviated titleIECON 2014
CountryUnited States
CityDallas, Texas
Period29/10/141/11/14

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Keywords

  • Bridge circuits
  • Capacitors
  • Circuit faults
  • Modulation
  • Power conversion
  • Topology

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ahmed, K. H., & Aboushady, A. A. (2014). Modified half-bridge modular multilevel converter for HVDC systems with DC fault ride-through capability. In Industrial Electronics Society, IECON 2014 : 40th Annual Conference of the IEEE (pp. 4676-4682). [7049207] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IECON.2014.7049207