کنترل ارتعاش توربین بادی به کمک میراگر جرمی فعال مجهز به سیال مغناطیسی

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشکده مهندسی عمران، دانشگاه علم و صنعت ایران، تهران، ایران

چکیده

امروزه به دلیل اهمیت محیط‌زیست استفاده از سازه‌های مولد انرژی‌های پاک بیشتر مورد توجه قرار گرفته است. به همین دلیل تحلیل دینامیکی این ‌گونه سازه‌ها تحت مخاطرات طبیعی به ‌ویژه زلزله حائز اهمیت است. یکی از این سازه‌ها، توربین بادی است که باید علاوه بر کنترل ارتعاش ناشی از باد به کنترل ناشی از زلزله نیز در آن پرداخته شود و تمرکز این مقاله بر روی کنترل ارتعاش توربین بادی، توسط میراگر جرمی فعال مجهز به سیال مغناطیسی است. جرم‌های ۱۰، 20، 40 و ۶۰ تن برای جرم این میراگر در نظر گرفته می‌شود و برای میراگر سیال مغناطیسی از دو میراگر متفاوت استفاده خواهد شد و عملکرد میراگرهای جرمی فعال با توجه به شاخص‌های ارزیابی ارائه‌ شده با یکدیگر مقایسه و میراگر فعال بهینه معرفی می‌گردد. جهت مدل‌سازی توربین بادی، از توربین بادی با توان MW 5 ارائه ‌شده توسط آزمایشگاه ملی انرژی تجدیدپذیر استفاده می‌شود و  طراحی این توربین بادی به ‌صورت خطی بوده که از سیستم چند درجه آزاد جهت مدل‌سازی استفاده می‌گردد؛ این توربین بادی تحت زلزله‌های حوزه دور و نزدیک قرار می‌گیرد که نیروی زلزله در جهت خارج از صفحه به توربین بادی وارد می‌شود که در ادامه با استفاده از این میراگرهای فعال معرفی ‌شده به کنترل ارتعاش این توربین بادی پرداخته می‌شود و در انتها با استفاده از میراگر بهینه که در بالای برج توربین بادی و کنار ناسل قرار دارد کاهش محسوسی در جابه‌جایی و سرعت برج مشاهده می‌گردد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Vibration control of wind turbine by using active mass damper equipped with a magnetic fluid

نویسندگان [English]

  • Pedram Ghaderi
  • Amirhosein Mohammadizade
School of civil engineering, Iran university of science and technology, Tehran, Iran
چکیده [English]

Today, due to the importance of the environment, the use of renewable energy-generating structures has received more attention. Therefore, dynamic analysis of such structures under natural hazards, especially earthquakes, is important. One of these structures is the wind turbine. In this article, its vibration is controlled by an active mass damper equipped with a magnetic fluid damper. The mass values used for tuned mass dampers are equal to 10, 20, 40 and 60 tons. In addition, two types of MR dampers are considered. Dynamic analysis of the wind turbine subjected to different earthquakes is studied and appropriate evaluation indexes are defined. The performance of the active mass dampers is compared according to the evaluation indexes and the optimal active damper is introduced. In this article, a 5MW wind turbine constructed by the National Energy Laboratory Renewable is considered. the multi-degree freedom model structure used for this wind turbine is linear. The wind turbine is subjected to near and far field earthquakes in an out-of-plane direction, then its vibration is mitigated by using the proposed active mass dampers. Finally, the results show a significant reduction in displacement and velocity of the wind turbine tower which is equipped with the optimal active mass damper.

کلیدواژه‌ها [English]

  • Wind turbine
  • Vibration control
  • ATMD
  • MR damper
  • Renewable energy

مراجع

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نشریه مهندسی عمران امیرکبیر
دوره 54، شماره 12
اسفند 1401
صفحه 4483-4510

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