کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
705127 891305 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transmission lines differential protection based on the energy conservation law
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Transmission lines differential protection based on the energy conservation law
چکیده انگلیسی

This paper proposes a differential protection scheme for transmission lines using the energy conservation law. The real power signals at both ends (sending and receiving) of the line are compared with a pre-specified value, if the resultant is more than this value, an internal fault is indicated in the transmission line zone.The proposed technique is evaluated using PSCAD/EMTDC program configurated to model the effect of faults on typical 500 kV transmission line. Extensive simulation studies show that this protection scheme has the ability to discriminate internal faults fast and accurately, and is more reliable than conventional biased differential protection scheme, and suitable for all types of lines. Details of the proposed relay design are given in the paper; also results of some performance studies are given.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 78, Issue 11, November 2008, Pages 1865–1872
نویسندگان
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