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شناسایی و طبقه‌بندی خطا در دو ریز شبکه متناوب (AC) متصل بهم با استفاده از تحلیل مُدال و جریان خطای تزریقی | ||
| مدل سازی در مهندسی | ||
| دوره 22، شماره 79، دی 1403، صفحه 135-152 اصل مقاله (1.99 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22075/jme.2024.32742.2593 | ||
| نویسندگان | ||
| صابر ارمغانی؛ زهرا مروج* | ||
| دانشکده برق و کامپیوتر، دانشگاه سمنان، سمنان، ایران | ||
| تاریخ دریافت: 02 دی 1402، تاریخ بازنگری: 10 فروردین 1403، تاریخ پذیرش: 09 اردیبهشت 1403 | ||
| چکیده | ||
| در این مقاله، روش جدید برای طبقه‌بندی انواع خطا با مقاومت کوچک در ریزشبکه‌های متناوب دوتایی متصل بهم از طریق خط ارتباطی و در وضعیت جزیره‌ای پیشنهاد شده است. روش پیشنهادی، انواع خطا را بر اساس تحلیل مدال جریان و تحلیل جریان خطای تزریقی به ریزشبکه طبقه‌بندی می‌کند. به منظور تحلیل مدال، از تبدیل کِلارک استفاده می‌شود تا جریان توالی صفر قابل پایش باشد؛ و برای یافتن مقدار جریان خطا تزریق شده، از روش ریخت‌شناسی ریاضی بکار گرفته شده است. در این مقاله، تئوری ریخت‌شناسی ریاضی با استفاده از فیلتر استخراج کننده پوش سیگنال، برای شناسایی تغییرات دامنه و اعوجاج در جریان از طریق تحلیل حوزه زمان، پیشنهاد شده است؛ تا شناسایی و طبقه‌بندی انواع خطا به صورت بهنگام انجام شود؛ و نسبت به انواع روش‌های پردازش سیگنال مبتنی بر تحلیل حوزه فرکانس ویا حوزه فرکانس-زمان دارای مزیت نیازمندی به سیستم مخابرات با پهنای باند و هزینه کمتر است. روش پیشنهادی برای طبقه‌بندی انواع خطای تکفاز به زمین، دو فاز بهم و به زمین، و سه فاز در ریزشبکه متصل بهم از طریق خط ارتباطی متناوب به عنوان نمونه موردی پیاده‌سازی شده است؛ و نتایج عددی، کارایی و موثر بودن روش پیشنهادی در طبقه‌بندی انواع خطا با مقاومت کوچک در ریرشبکه متناوب متصل بهم از طریق خط ارتباطی را به اثبات می‌رساند. | ||
| کلیدواژه‌ها | ||
| ریزشبکه‌های متناوب متصل بهم در وضعیت جزیره ای؛ طرح حفاظت مبتنی بر جریان؛ طبقه‌بندی انواع خطا؛ تحلیل مُدال و جریان تزریقی؛ روش ریخت‌شناسی ریاضی | ||
| عنوان مقاله [English] | ||
| Fault Detection and Classification in Two -Interconnected AC Microgrid at by Modal and Superimposed Analysis | ||
| نویسندگان [English] | ||
| Saber Armaghani؛ Zahra Moravej | ||
| Faculty of Electrical and Computer Engineering, Semnan University, Semnan, Iran | ||
| چکیده [English] | ||
| In this paper, a new method is proposed for low fault resistance fault detection and classification in two interconnected microgrid with tie line connection in island situation (Islanded two interconnected AC microgrid). The proposed method classifies the types of faults based on modal and superimposed fault current analysis. In order to analyze the modal, the Clarke transform is used so that the zero-sequence current can be monitored. Also, mathematical morphology method is used to find the amount of injected fault current in signal processing context. In this article, the theory of mathematical morphology is proposed using signal closing filter to identify amplitude changes and distortion in the measured current through time domain analysis. This theory is implemented in this paper to identify and classify all types of faults in a timely manner. Additionally, comparing to another signal processing methods based on frequency domain analysis or frequency-time domain, it has the advantage of requiring a telecommunication system with lower bandwidth and cost. The proposed method for classifying single-phase to ground, two-phase to ground, and three-phase faults in two microgrids connected through a tie line has been simulated as a case study. The numerical results illustrate the efficiency and effectiveness of the proposed method in classifying the types of faults with small resistance. | ||
| کلیدواژه‌ها [English] | ||
| Islanded two interconnected AC microgrid, Current based protection scheme, Internal/External fault detection and classification, Modal and superimposed analysis, Mathematical morphology | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 117 تعداد دریافت فایل اصل مقاله: 150 |
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