IJE TRANSACTIONS B: Applications Vol. 32, No. 2 (February 2019) 254-260    Article in Press

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M. Sahebjam, M. B. Bannae Sharifin, M. Reza Feyzi and M. Sabahi
( Received: October 14, 2018 – Accepted: January 03, 2019 )

Abstract    Many control schemes have been proposed for electric motor (IM and PMSM) control, which are almost highly complex and non-linear. Also, a simple and efficient method for unified control of the electric motors (IM and PMSM) are rarely investigated. In this paper, a novel control method based on rotor flux orientation is proposed. The novelties of proposed method are elimination of q-axis current loop (one PI controller is omitted) and utilization of a new dynamic current rate limiter. Also, unlike the conventional methods, the proposed control method could be applied on both IM and PMSM with only minor modifications. In addition to mentioned advantages, the torque ripple and current harmonic is reduced, too. Theoretical survey and simulation results clearly show the capability of proposed method for high and low speed applications in steady and transient states.


Keywords    IM, PMSM, Unified method, PI controller, Dynamic current rate limiter, FOC


چکیده    روش‌های کنترلی بسیاری برای کنترل موتورهای الکتریکی (IM و PMSM) ارائه شده است که اکثرا پیچیده و غیرخطی هستند. همچنین، به ندرت در زمینه کنترل یکپارچه موتورهای الکتریکی (IM و PMSM) تحقیقاتی صورت گرفته است. در این مقاله، روش کنترلی جدیدی براساس فلوی روتور محور پیشنهاد شده است. نوآوری‌های روش پیشنهادی حذف حلقه کنترلی جریان محور q (یک کنترل کننده PI) و استفاده از محدود کننده دینامیکی نرخ تغییر جریان است. هم‌چنین، برخلاف روش‌های مرسوم، روش کنترلی پیشنهادی قابلیت اعمال بر روی هر دو نوع موتور IM و PMSM با کمترین تغییرات را دارد. همچنین، علاوه بر موارد مذکور، ریپل گشتاور و هارمونیک‌های جریان کاهش پیدا کرده است. مطالعات بر مبنای تئوری و نتایج شبیه‌سازی قابلیت عملکرد مناسب روش پیشنهادی در سرعت‌های کم و زیاد و برای حالت‌های ماندگار را نشان می‌دهد.

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