Modelling and fault current characterization of superconducting cable with high temperature superconducting windings and copper stabilizer layer

Tsotsopoulou, Eleni and Dysko, Adam and Hong, Qiteng and Elwakeel, Abdelrahman and Elshiekh, Mariam and Yuan, Weijia and Booth, Campbell and Tzelepis, Dimitrios (2020) Modelling and fault current characterization of superconducting cable with high temperature superconducting windings and copper stabilizer layer. Energies, 13 (24). 6646. ISSN 1996-1073

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    Abstract

    With the high penetration of Renewable Energy Sources (RES) in power systems, the short-circuit levels have changed, creating the requirement for altering or upgrading the existing switchgear and protection schemes. In addition, the continuous increase in power (accounting both for generation and demand) has imposed, in some cases, the need for the reinforcement of existing power system assets such as feeders, transformers, and other substation equipment. To overcome these challenges, the development of superconducting devices with fault current limiting capabilities in power system applications has been proposed as a promising solution. This paper presents a power system fault analysis exercise in networks integrating Superconducting Cables (SCs). This studies utilized a validated model of SCs with second generation High Temperature Superconducting tapes (2G HTS tapes) and a parallel-connected copper stabilizer layer. The performance of the SCs during fault conditions has been tested in networks integrating both synchronous and converter-connected generation. During fault conditions, the utilization of the stabilizer layer provides an alternative path for transient fault currents, and therefore reduces heat generation and assists with the protection of the cable. The effect of the quenching phenomenon and the fault current limitation is analyzed from the perspective of both steady state and transient fault analysis. This paper also provides meaningful insights into SCs, with respect to fault current limiting features, and presents the challenges associated with the impact of SCs on power systems protection.

    ORCID iDs

    Tsotsopoulou, Eleni ORCID logoORCID: https://orcid.org/0000-0001-9118-3743, Dysko, Adam ORCID logoORCID: https://orcid.org/0000-0002-3658-7566, Hong, Qiteng ORCID logoORCID: https://orcid.org/0000-0001-9122-1981, Elwakeel, Abdelrahman, Elshiekh, Mariam, Yuan, Weijia ORCID logoORCID: https://orcid.org/0000-0002-7953-4704, Booth, Campbell ORCID logoORCID: https://orcid.org/0000-0003-3869-4477 and Tzelepis, Dimitrios ORCID logoORCID: https://orcid.org/0000-0003-4263-7299;