Digital protective relaying algorithms for double circuit lines protection
Resource
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Journal
2002 International Conference on Power System Technology
Pages
-
Date Issued
2002-10
Date
2002-10
Author(s)
DOI
N/A
Abstract
This paper presents digital relaying algorithms for double circuit lines protection using synchronized phasor measurement units. Most of the double-circuit lines in Taiwan are built in the same tower and they are generally untransposed. Therefore, this paper focuses on the design of relaying algorithms for untransposed double circuit fines. The basic principles are extended from those of a single-circuit line. The functions of the developed algorithms include fault detection, internal and external faults discrimination, and faulted-circuit identification. Both of two-terminal three voltages and six currents in the two protected circuits measured by PMUs are used in the algorithms. EMTP/ATP simulator is used to verify the performance of the proposed algorithms. Some typical responses of the algorithms are reported.
SDGs
Type
journal article
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