روشی نوین در حفاظت تطبیقی از راه دور خطوط انتقال متصل به مزارع بادی
|کد مقاله||سال انتشار||مقاله انگلیسی||ترجمه فارسی||تعداد کلمات|
|54545||2012||7 صفحه PDF||سفارش دهید||4223 کلمه|
Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : International Journal of Electrical Power & Energy Systems, Volume 43, Issue 1, December 2012, Pages 1376–1382
Wind speed variations results in wind farm voltage, frequency and power output fluctuations. Therefore, protection of lines connecting such a farm to the grid is very important and an adaptive system for distance protection of such a line is necessary. In this paper, an adaptive unit which adjusts the relay trip characteristic using local information has been designed for distance relay using artificial neural networks. In this case, in order to prevent wrong operation of relay, changing in wind farm conditions, the set points of different zones of distance relay has to be changed simultaneously. The results obtained from proposed method are verified by computer simulation.