کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
704393 1460875 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of relaying impedance algorithms for series-compensated line
ترجمه فارسی عنوان
ارزیابی الگوریتم های امپدانس رله برای خط سری جبران شده
کلمات کلیدی
خط انتقال؛ جبران خازن سری؛ گسل؛ محافظت از دیجیتال؛ الگوریتم های امپدانس؛ شبیه سازی ATP-EMTP
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


• Fault-loop impedance measurement for a series-compensated line is investigated.
• Combination of differential equation method with orthogonalisation is recommended.
• Fault direction detection with incremental positive sequence signals is presented.

A group of the algorithms of fault-loop impedance determination for digital distance relay applied for protecting a series-compensated line has been considered. The algorithms gathered in two basic families have been tested: (i) the methods based upon Fourier orthogonal components with using both full-cycle and half-cycle data windows; (ii) four variants of the method founded on differential equation techniques, i.e. with applied various digital differentiation rules, with included additional pre-filtration and combined with orthogonal components determination. Extensive simulation studies have been performed for comparing the calculation techniques. Recommendations with respect to impedance algorithms suitable for protection of a series-compensated line have been stated. The other studied algorithm is related to fault direction discrimination for the considered series-compensated line arrangement. Sample simulation results have been presented and discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 138, September 2016, Pages 106–112
نویسندگان
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