طرح حفاظت از ماژول ANN مونو و ماژول های چندگانه ANN برای تخمین مکان خطا برای یک خط انتقال شش فاز با استفاده از تبدیل موجک گسسته

نوع مقاله : مقاله پژوهشی

چکیده

قابلیت انتقال توان افزایش یافته با سیستم انتقال شش فاز امکان پذیر است اما به دلیل عدم وجود یک طرح حفاظتی مناسب برای ایمن سازی خط از 120 نوع خطای مختلف اتصال کوتاه احتمالی محبوبیت پیدا نکرد. این کار یک طرح حفاظتی با تبدیل موجک گسسته (موجک مادر db4) و یک شبکه عصبی مصنوعی (ANN) ارائه می‌کند. الگوریتم Levenberg-Marquardt برای آموزش شبکه های عصبی مصنوعی استفاده می شود. این طرح حفاظتی فقط به اطلاعات فعلی از پیش پردازش شده گذرگاه پایانی ارسال کننده نیاز دارد. برای تشخیص و طبقه بندی خطای تمامی 120 نوع خطا، یک ماژول ANN منفرد با شش ورودی و شش خروجی پیاده سازی شده است. برای تخمین مکان خطا در هر فاز، 11 ماژول ANN با شش خروجی، یکی برای هر یک از 11 نوع ترکیبی از خطاها، پیاده سازی شده است. نتایج شبیه‌سازی MATLAB/SIMULINK تکنیک حفاظتی پیشنهادی پیاده‌سازی شده بر روی سیستم انتقال قدرت شش فاز آلگنی نشان می‌دهد که در تشخیص و طبقه‌بندی تمامی خطاها با پارامترهای خطای متغیر با دقت 99.76 درصد مؤثر و کارآمد است. مشخص شد که عملکرد ماژول‌های تخمین مکان خطا با داده‌های آموزشی بهتر و با داده‌های تست متوسط است.

کلیدواژه‌ها

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مجله بهره برداری و اتوماسیون در مهندسی قدرت
دوره 12، شماره 4
بهمن 1403
صفحه 337-351

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سابقه مقاله

  • تاریخ دریافت: 26 مهر 1401
  • تاریخ بازنگری: 26 دی 1401
  • تاریخ پذیرش: 02 اردیبهشت 1402

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