دانلود مقاله ISI انگلیسی شماره 54437
عنوان فارسی مقاله

عیب یابی در خطوط انتقال کمی طولانی تر از نصف طول موج

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
54437 2014 9 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Fault location on transmission lines little longer than half-wavelength
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Electric Power Systems Research, Volume 114, September 2014, Pages 101–109

کلمات کلیدی
عیب یابی؛ خطوط نصف طول موج؛ روش های مبتنی بر امپدانس؛ خطاهای سیستم قدرت - انتقال قدرت؛ خطوط انتقال
پیش نمایش مقاله
پیش نمایش مقاله عیب یابی در خطوط انتقال کمی طولانی تر از نصف طول موج

چکیده انگلیسی

AC transmission lines little longer than half-wavelength have been widely investigated as an alternative for bulk power transmission in power networks where the generation plants are very distant from the load centers. However, studies regarding the performance of fault location methods applied to this type of line have not been done. In this paper, two contributions are presented. First, it is shown that conventional impedance-based fault location methods may fail to correctly identify the fault point even when the line shunt capacitance effect is taken into account. Then, to overcome this drawback, an innovative two-terminal impedance-based fault location algorithm is proposed. The algorithm considers the distributed parameter line model with line shunt capacitances thereby is able to reliably identify and correct erroneous fault point estimations that arise due to atypical operational features of this particular type of transmission line. The performance evaluation of the proposed algorithm is carried out by means of Electromagnetic Transients Program (EMTP) simulations, from which a wide variety of faults in a 1000 kV AC transmission line 2613 km long is analyzed. The obtained results indicate high reliability of the proposed algorithm, which is almost insensitive to the fault characteristics, power system load flow, power factor and line transposition schemes.

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