Reduction of commutation failure frequency in HVDC transmission systems by means of an improved solid-state fault current limiter

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Mirsaeidi, Sohrab and Liu, Hanzhang and He, Jinghan and Tzelepis, Dimitrios and Mat Said, Dalila; (2020) Reduction of commutation failure frequency in HVDC transmission systems by means of an improved solid-state fault current limiter. In: 2020 IEEE Sustainable Power and Energy Conference (iSPEC). IEEE, CHN. ISBN 9781728191652 (https://doi.org/10.1109/iSPEC50848.2020.9350981)

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Abstract

In the recent decade, High Voltage Direct Current (HVDC) technology has become the preferred option for bulk power transmission due to its numerous advantages such as lower losses and less space requirements compared to High Voltage Alternating Current (HVAC) transmission. However, in order to accelerate the widespread adoption of HVDC systems, some of their technical challenges such as commutation failure need to be resolved. In this study, a Fully Controllable Solid-State Fault Current Limiter (FCSSFCL) is proposed, which is designed based on both fault severity (fault resistance) and fault initiation time. It inserts an adequate number of resistors in the fault current path so that the commutation failure is prevented. The salient feature of the proposed FCSSFCL is that it is fully controllable, and hence it prevents additional power losses in the inverter AC system. The importance of the proposed FCSSFCL becomes more evident in a power system, wherein the inverter supplies more than one AC system. In such a network, insertion of a large resistance by the FCL during a non-severe fault at one of the inverter AC systems leads to the unnecessary reduction of power flow in other non-faulted AC systems. In order to validate the efficacy of the proposed FCSSFCL, several simulations have been performed under different fault types. The simulation results indicate that the proposed approach can effectively reduce the commutation failure frequency.

ORCID iDs

Mirsaeidi, Sohrab, Liu, Hanzhang, He, Jinghan, Tzelepis, Dimitrios ORCID logoORCID: https://orcid.org/0000-0003-4263-7299 and Mat Said, Dalila;
  • Item type:Book Section
    ID code:73776
    Dates:
    Date
    Event
    23 November 2020
    Published
    1 September 2020
    Accepted
    Notes:© 2020 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:10 Sep 2020 09:52
    Last modified:11 Nov 2024 15:24
    URI:https://strathprints.strath.ac.uk/id/eprint/73776
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