کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
400523 1438769 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fault calculations using three terminal Thevenin’s equivalent circuit
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Fault calculations using three terminal Thevenin’s equivalent circuit
چکیده انگلیسی

The aim of this paper is to present a systematic approach of calculating fault currents due to the switching of elements or fault impedances that involve two buses and ground. Traditionally, Thevenin’s equivalent circuits are made up of two terminals suitable for calculating the current into an element connected between both terminals of the equivalent circuit. In such cases, the current entering the element is equal to the current leaving the element. So many practical cases involve elements that have a third terminal connected to ground. Tee and pi models of transmission lines are examples of such cases. Traditionally, the two terminals Thevenin’s equivalent circuit is used to tackle such problems by decomposing the three terminal element into its basic elements. The problem is then transferred to a multi element application where each element is processed once a time. This approach is cumbersome and time consuming. In this paper, a systematic approach to applying the three terminal Thevenin’s equivalent circuit to three terminal elements is proposed.


► We model faults due to three terminal elements using Thevenin’s equivalent circuit.
► The model is applied to IEEE 14 bus test system for faults on transmission lines.
► Several cases of symmetrical and unsymmetrical faults have been simulated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Electrical Power & Energy Systems - Volume 33, Issue 8, October 2011, Pages 1462–1469
نویسندگان
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