الکترومغناطیس کاربردی

الکترومغناطیس کاربردی

بهبود عملکرد موتور سنکرون آهنربای دائم در هر دو حالت دائم و گذرا با استفاده از روش کنترل پیش‌بین مدل جریان

نوع مقاله : مقاله پژوهشی

نویسندگان
استادیار،دانشگاه صنعتی مالک اشتر،شاهین شهر،ایران
چکیده
فرکانس کلید زنی متغیر و نوسانات گشتاور بالا دو عیب عمده­ی روش‌‌های کنترل پیش­بین مدل جریان (MPCC) می‌باشند. اگرچه بعضی از روش‌‌های مبتنی بر مدلی که اخیراً پیشنهادشده‌اند بر روی بالابردن کیفیت گشتاور فعالیت‌‌های مفیدی انجام داده­اند ولی در عوض باعث کاهش سرعت پاسخ­دهی روش‌‌های سنتی گردیده­اند. در این مقاله یک راه­حل ساده ولی سودمند به‌منظور رفع معایب روش MPCC سنتی ارائه گردیده است. در این راه­حل پیشنهادی دو نوع استراتژی کنترلی برای شرایط ماندگار و گذرا ارائه‌شده است. استراتژی اول برای حالت ماندگار به کار گرفته‌شده و هدف آن کمینه کردن نوسانات گشتاور و شار خروجی با انتخاب مناسب بردار ولتاژ و مدت‌زمان اعمال آن است. استراتژی دوم که در شرایط گذرا از آن استفاده می‌شود باهدف بالا­بردن سرعت پویایی و رسیدن گشتاور خروجی به مقدار مرجع در سریع‌ترین زمان ممکن طراحی گردیده است. به‌طوری‌که در این استراتژی کنترلی یک بردار ولتاژ در کل مدت‌زمان کنترل به خروجی اعمال می‌گردد. نتایج شبیه­سازی و عملی که با استفاده از نرم­افزار متلب و پردازنده­ی DSP مدل TM320F28335 انجام‌گرفته کارایی مناسب روش پیشنهادی را ازنقطه‌نظر کاهش نوسانات گشتاور، نوسان شار و THD جریان استاتور در مقایسه با دیگر روش‌ها نشان می‌دهد.
کلیدواژه‌ها

عنوان مقاله English

Performance Improvement of Permanent Magnet Synchronous Motors in Both Steady and Transient Modes Through the Current Model Predictive Control Method

نویسندگان English

GHOLAMREZA LALEZAR
Hosein Fayazi
Assistant Professor, Malek Ashtar University of Technology, Shahin Shahr, Iran
چکیده English

Variable switching frequency and high torque oscillations are two significant drawbacks of current model predictive control (MPCC) methods. Although some recently proposed model-based approaches have made valuable efforts to enhance torque quality, they have inadvertently reduced the response speed of traditional methods. This paper presents a straightforward yet effective solution to address the shortcomings of the conventional MPCC method. In this proposed solution, two types of control strategies are introduced for steady-state and transient conditions. The first strategy targets steady-state conditions, aiming to minimize torque and output flux oscillations by appropriately selecting the voltage vector and its application duration. The second strategy, applicable in transient conditions, is designed to enhance dynamic speed and achieve the reference value of output torque in the shortest possible time. Thus, in this control strategy, a voltage vector is applied to the output throughout the entire control duration. Simulation and practical results, conducted using MATLAB software and a TM320F28335 DSP processor, demonstrate the effectiveness of the proposed method in reducing torque fluctuations, flux fluctuations, and stator current THD compared to other methods.

کلیدواژه‌ها English

Permanent magnet synchronous motor
Model predictive control
steady-state
transient-state

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دوره 13، شماره 1 - شماره پیاپی 30
بهار و تابستان
شهریور 1404
صفحه 55-68

  • تاریخ دریافت 16 خرداد 1404
  • تاریخ بازنگری 03 مرداد 1404
  • تاریخ پذیرش 20 مرداد 1404
  • تاریخ انتشار 01 شهریور 1404