Design of DC-line terminating inductors for enhancement of protective functions in MTDC grids
Tzelepis, Dimitrios and Dysko, Adam and Booth, Campbell and Mirsaeidi, Sohrab and Dong, Xinzhou (2018) Design of DC-line terminating inductors for enhancement of protective functions in MTDC grids. Journal of Engineering. pp. 1-6. ISSN 2051-3305 (https://doi.org/10.1049/joe.2018.0266)
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Abstract
This study presents a detailed DC-side fault analysis considering inductive termination of lines within a high-voltage multi-terminal direct current (MTDC) grid. The analysis aims to provide design guidelines for DC-side inductors, taking into account important aspects of protection such as the required speed of operation of relays and the performance characteristics of current interruption devices (i.e. of DC circuit breakers). Moreover, the impact of current limiting inductors on the fault signatures is investigated. In particular, it has been found that DC-side inductors not only limit the fault current level, but also the resulting signatures in voltage and current, can assist to enhance the speed of operation, stability and selectivity of protective functions for DC-side faults. The analysis has been extended to include the impact of inductive termination on fast transient phenomena known as travelling waves. Specifically, DC-side inductors can form a significant reflection boundary for the generated travelling waves. A deeper insight into the faults has been achieved by utilising wavelet transform.
ORCID iDs
Tzelepis, Dimitrios ORCID: https://orcid.org/0000-0003-4263-7299, Dysko, Adam ORCID: https://orcid.org/0000-0002-3658-7566, Booth, Campbell ORCID: https://orcid.org/0000-0003-3869-4477, Mirsaeidi, Sohrab and Dong, Xinzhou;-
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Item type: Article ID code: 65438 Dates: DateEvent18 July 2018Published11 June 2018AcceptedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering Depositing user: Pure Administrator Date deposited: 17 Sep 2018 13:25 Last modified: 13 Oct 2024 00:35 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/65438