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Speed Control of Three Phase Induction Motor Based on Speed Sensorless Direct Vector Control Technique

السيطرة على سرعة محرك حثي ثلاثي الأطوار بالاعتماد على تقنية سيطرة المتجه المباشر دون متحسس للسرعة

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 Publication date 2022
and research's language is العربية
 Created by Shamra Editor




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The presented paper deals with an implemented speed sensorless direct vector control (DVC) technique based on stator flux orientation algorithm to estimate and control rotor speed of three phase induction motor (IM). The driver system is presented in this paper has a three phase bridge uncontrolled rectifier and space vector pulse width modulated (SV-PWM) inverter to drive and control the speed of the (IM) at different mechanical load conditions. The rotor speed has been obtained by slip frequency estimation instead of use feedback speed sensor. The structure of Volt/Freq via PI-controller is used to control and adjust speed accuracy between required and estimation rotor speed to precise speed response. The proportional and time integration controller values obtain by Ziegler-Nichols closed-loop tuning method. Computer simulation results with Matlab/Simulink program show an acceptable speed control response, minimum error at steady state and dynamic condition, a results show also the stator voltage, current and flux estimated in direct-quadrate of stationary and synchronous reference frame at variation in load up to (10 N.m) beside the synchronous, slip and rotor speed estimation are varied between (250-1486 rpm). Keywords: Induction Motor Drive System, Direct Vector Control, Speed Sensorless.


Artificial intelligence review:
Research summary
تتناول هذه الورقة البحثية تقنية التحكم المباشر في المتجهات بدون مستشعر سرعة لمحرك حثي ثلاثي الطور. تعتمد التقنية على خوارزمية توجيه فيض الجزء الساكن لتقدير والتحكم في سرعة الدوار. يتكون نظام القيادة من مقوم غير محكوم ثلاثي الطور وعاكس يعمل بنظام تضمين عرض النبضة بتقنية المتجه الفراغي. يتم تقدير سرعة الدوار من خلال تقدير تردد الانزلاق بدلاً من استخدام مستشعر السرعة. يتم استخدام هيكل التحكم في الفولتية/التردد عبر المتحكم التكاملي التناسبي لضبط دقة السرعة بين السرعة المطلوبة والمقدرة. تم الحصول على قيم المتحكم التناسبي والتكاملي باستخدام طريقة ضبط الدائرة المغلقة لزيجلر-نيكولز. أظهرت نتائج المحاكاة باستخدام برنامج Matlab/Simulink استجابة مقبولة للتحكم في السرعة مع حد أدنى من الخطأ في الحالة المستقرة والديناميكية. كما أظهرت النتائج الفولتية والتيار والفيض المقدرة في إطار المرجع الثابت والتزامني الدوار للمحور المباشر والعمودي عند تغير الحمل الميكانيكي حتى 10 نيوتن متر، بالإضافة إلى تقدير السرعة التزامنية والانزلاقية وسرعة الدوار التي تتراوح بين 250-1486 دورة في الدقيقة.
Critical review
دراسة نقدية: تقدم هذه الورقة البحثية حلاً مبتكراً للتحكم في سرعة المحركات الحثية ثلاثية الطور باستخدام تقنية التحكم المباشر في المتجهات بدون مستشعر سرعة. ومع ذلك، يمكن ملاحظة بعض النقاط التي قد تحتاج إلى تحسين. أولاً، على الرغم من أن استخدام تقدير تردد الانزلاق بدلاً من مستشعر السرعة يقلل من التكلفة والتعقيد، إلا أن دقة التقدير قد تتأثر بالضوضاء في الإشارات الكهربائية. ثانياً، قد يكون من المفيد تضمين تحليل أكثر تفصيلاً حول تأثير تغيرات المعلمات الكهربائية مثل مقاومة الجزء الساكن على دقة التقدير. أخيراً، يمكن تعزيز الورقة بإجراء تجارب عملية للتحقق من نتائج المحاكاة وتقديم مقارنة بين الأداء النظري والعملي.
Questions related to the research
  1. ما هي الفائدة من استخدام تقنية التحكم المباشر في المتجهات بدون مستشعر سرعة؟

    تقلل هذه التقنية من التكلفة والتعقيد وتزيد من موثوقية ومرونة النظام عن طريق التخلص من مستشعرات السرعة التي قد تكون غير مناسبة للظروف البيئية القاسية.

  2. كيف يتم تقدير سرعة الدوار في هذه التقنية؟

    يتم تقدير سرعة الدوار من خلال تقدير تردد الانزلاق باستخدام الإشارات الكهربائية المقاسة من الفولتية والتيار في الجزء الساكن.

  3. ما هي طريقة ضبط المتحكم التكاملي التناسبي المستخدمة في الورقة؟

    تم استخدام طريقة ضبط الدائرة المغلقة لزيجلر-نيكولز للحصول على قيم المتحكم التناسبي والتكاملي.

  4. ما هي نتائج المحاكاة التي تم الحصول عليها باستخدام برنامج Matlab/Simulink؟

    أظهرت نتائج المحاكاة استجابة مقبولة للتحكم في السرعة مع حد أدنى من الخطأ في الحالة المستقرة والديناميكية، وتقدير دقيق للفولتية والتيار والفيض في إطار المرجع الثابت والتزامني الدوار.


References used
S. Bodkhe1, and M. Aware, “Speed Sensorless, Adjustable Speed Induction Motor Drive Based on DC link Measurement”, International Journal of Physical Sciences, Vol.4, pp. 221-232, April, 2009.
Ahmed A. Al-Badrani, Rakan K. Antar, and Abdul kareem Z. Mansoor, ”Neural Network-PI Controller for Speed Control of a 3-phase Induction Motor Supplied from Rectifier-Inverter Set”, Eleventh Scientific Conference for Foundation of Technical Education 23-24, March, Baghdad, Iraq, pp. 377-383, 2009.
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