Modular two-level voltage source converter for direct current transmission systems

Alsokhiry, Fahad and Al-Turki, Yusuf and Abdelsalam, Ibrahim and Adam, Grain Philip; (2018) Modular two-level voltage source converter for direct current transmission systems. In: 5th International Symposium on Environment Friendly Energies and Applications. IEEE, ITA. (In Press)

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Abstract

This paper presents a modular two-level voltage source converter (M2L-VSC) suitable for short distance dc transmission systems with relatively low dc operating voltage. The proposed M2L-VSC consists of two sets of three-phase cells, with each cell has its own capacitor, and these capacitors do not discharge when converter is blocked during dc short circuit fault. The main attributes of the proposed M2L-VSC are absence of the 2nd order harmonic from the arm currents, and reduced energy storage requirement as the cell capacitor only experience high-order harmonic currents associated with the switching frequency as in conventional two-level converter (C2L). The technical feasibility of the M2L-VSC for dc transmission systems has been assessed using simulations and corroborated experimentally. It has been shown that the transient responses of M2L-VSC to ac and dc faults are similar to that of the modular multilevel converter (MMC).

ORCID iDs

Alsokhiry, Fahad ORCID logoORCID: https://orcid.org/0000-0001-9426-4514, Al-Turki, Yusuf, Abdelsalam, Ibrahim and Adam, Grain Philip ORCID logoORCID: https://orcid.org/0000-0002-1263-9771;
  • Item type:Book Section
    ID code:66405
    Dates:
    Date
    Event
    15 July 2018
    Published
    15 July 2018
    Accepted
    Notes:© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:18 Dec 2018 11:50
    Last modified:11 Nov 2024 15:16
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/66405
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