روش‌جدیدکنترل مستقیم و گسسته‌زمان توان PMSG در توربین بادی بدون‌نیاز به تبدیل دستگاه مرجع

نویسندگان

دانشکده مهندسی برق و کامپیوتر - دانشگاه تبریز

چکیده

این مقاله روش جدیدی برای کنترل گسسته‌زمان توان اکتیو و شار استاتور ژنراتور سنکرون مغناطیس دائم در توربین بادی پیشنهاد می‌کند. ایده اصلی این روش کنترل گسسته‌زمان توان اکتیو و شار استاتور از دیدگاه بردار فضایی شار و زاویه بار است و تنها با دراختیارداشتن اطلاعات توان اکتیو و شار استاتور، بردار مطلوب شار استاتور برای لحظه بعد پیش‌بینی شده، سپس از مدولاسیون بردار فضایی به‌منظور تولید بردار ولتاژ مرجع استفاده می‌شود که این‌کار موجب تثبیت فرکانس کلیدزنی و کاهش ریپل توان و شار می‌شود. در این روش کلیه محاسبات تنها در قاب مرجع استاتور انجام می‌شود و نیازی به تبدیل در قاب مرجع‌های دیگر وجود ندارد. این روش در مقایسه با روش کنترل‌برداری سرعت پاسخ‌دینامیکی بالایی دارد و همچنین، شار روتور و چندین پارامتر ماشین از جمله اندوکتانس استاتور در معادلات دخالت داده نمی‌شوند که موجب بهبود استحکام کنترل‌کننده می‌شود. همچنین نیازی به کنترل‌کننده‌های تناسبی‌انتگرالی و تنظیم ضرایب آن نیست. در این مقاله برای شبیه‌سازی از نرم‌افزار MATLAB استفاده شده‌است. مقایسه نتایج بین روش پیشنهادی و روش کنترل برداری که توسط الگوریتم تجمع ذرات بهینه‌سازی شده‌است، تأییدکننده سرعت بالای پاسخ دینامیکی و کاهش ریپل و فراجهش در توان اکتیو و شار استاتور در روش پیشنهادی است.

کلیدواژه‌ها

عنوان مقاله [English]

A New Method for Direct and Discrete Control of the PMSG in a Wind Turbine without need to Coordinate Transform

نویسندگان [English]

  • S. Tohidi
  • B. Mamipour Matanag
  • N. Rostami
Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran
چکیده [English]

This paper proposes a new method for the discrete control of active power and stator flux of permanent magnet synchronous generator in wind turbine. The main idea of this method is discrete control of the active power and stator flux from the perspective of the flux and angular load vector and Only by knowing active power and stator flux, the desired stator flux vector for the next moment is predicted. Then in order to generate the reference voltage vector, the space vector modulation is used which stabilizes the switching frequency and reduces the power and flux ripples. In this method all the calculations are done only in the stator reference frame and there is no need for translation to other reference frames. Compared to the vector control, this method has high dynamic response. The rotor flux and several machine parameters, including the stator inductance, are not interfered in the equations, which improves the robustness controller. Also, there is no need for integral proportional controllers and their coefficients adjustment. In this paper, MATLAB software is used for simulations. Comparison of the results of proposed method and vector control method optimized by the particle swarm algorithm, validates the high dynamic response, reduced active power and the stator flux ripple and overshoot in the proposed method.

کلیدواژه‌ها [English]

  • Direct power control (DPC)
  • vector control
  • flux space vector
  • load angle analysis
  • permanent magnet synchronous generator (PMSG)
  • wind turbine

مراجع

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