دانلود مقاله ISI انگلیسی شماره 55201
ترجمه فارسی عنوان مقاله

روش تشخیص جزیره سازی فعال برای اینورتر جریان تحت کنترل

عنوان انگلیسی
An active islanding detection technique for current controlled inverter
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
55201 2013 8 صفحه PDF
منبع

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

Journal : Renewable Energy, Volume 51, March 2013, Pages 189–196

ترجمه کلمات کلیدی
ضد جزیره سازی؛ تولید پراکنده؛ اینورتر متصل به شبکه ؛ فتوولتائیک
کلمات کلیدی انگلیسی
Anti islanding; Distributed generation; Grid connected inverter; Photovoltaics
پیش نمایش مقاله
پیش نمایش مقاله  روش تشخیص جزیره سازی فعال برای اینورتر جریان تحت کنترل

چکیده انگلیسی

This paper presents an active islanding detection technique suitable for current controlled inverters. The method is based on reducing the magnitude of the injected current periodically and monitoring the voltage at the point of common coupling (PCC). Under grid failure, the change in voltage at the PCC exceeds the allowable voltage threshold and islanding is detected. The change in the PCC voltage depends on the ratio by which current is reduced and is independent of the magnitude of current. Hence the voltage threshold remains the same irrespective of the loading conditions. A simple control circuit is incorporated into the inverter control to enable islanding detection. The perturbation caused by this method does not affect the zero crossing of the inverter current nor introduce any distortion as in case of other active anti islanding techniques. The performance of the proposed technique applied to a current controlled inverter is simulated in MATLAB/Simulink environment. The feasibility of the technique is ascertained by conducting experimental test on the prototype unit built in the laboratory. The algorithm is implemented on an ALTERA CYCLONE II FPGA board and the results are presented to show that the proposed method can effectively detect the islanding condition regardless of the load conditions.