Abstract




 
   

IJE TRANSACTIONS A: Basics Vol. 31, No. 7 (July 2018) 1044-1049    Article in Press

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  POSITION CONTROL IMPROVEMENT OF PERMANENT MAGNET MOTOR USING MODEL PREDICTIVE CONTROL
 
M. Arehpanahi and M. Fazli
 
( Received: November 28, 2017 – Accepted in Revised Form: March 09, 2018 )
 
 

Abstract    Fast and accurate transient response is the main requirement in electric machine position control. Conventional cascade control structure has sluggish response due to the limitation of inner control loop bandwidth. In this paper, in order to decrease the Permanent Magnet Synchronous Motor (PMSM) transient response time it can be used reference model using feed-forward signals. In this structure, feed-forward signals generated by simplified model of permanent magnet synchronous motor. In this paper, feed-forward signals generated are emplyed in model predictive control; which are combined with conventional cascade control structure. Using this approach, a fast transient response and satisfactory tracking ability will be guaranteed. The proposed method is compared with the model reference method and conventional cascade structure. Simulation results showed a good performance of proposed method related to both methods. Verification of simulation results were carried out by experimental results

 

Keywords    Position Control; Permanent Magnet Motor; Model Predictive Control; Transient Response

 

چکیده    سرعت و دقت پاسخ گذرا مهمترین نیاز یک سیستم کنترل موقعیت ماشین الکتریکی است. ساختار مرسوم کنترل آبشاری به علت دارا بودن پهنای باند نامناسب حلقه های داخلی دارای سرعت پاسخ ضعیفی است. در این مقاله، برای کاهش سرعت پاسخ موتور مغناطیس دائم از مدل مرجع با استفاده از سیگنالهای پیش خور استفاده شده است. در این ساختار سیگنالهای پیش خور بوسیله مدل مرجع ساده شده موتور مغناطیس دائم تولید می شوند. در این مقاله این سیگنالهای پیش خور که مورد استفاده روش ترکیبی کنترل پیش بین هستند با ساختار کنترل آبشاری ترکیب شده است. با استفاده از این ایده سرعت پاسخ سریع با دقت بالا و نیز قابلیت دنبال کردن سیگنال مرجع تضمین شده است. نتایج شبیه سازی و آزمایشگاهی بر ایده مطرح شده صحه گذاشتند.

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