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Article
PID Controller Based Multiple (Master/Slaves) Permanent Magnet Synchronous Motors Speed Control

Authors: Suroor M. Dawood --- Samar H. Majeed --- Habeeb J. Nekad
Journal: Iraqi Journal for Electrical And Electronic Engineering المجلة العراقية للهندسة الكهربائية والالكترونية ISSN: 18145892 Year: 2015 Volume: 11 Issue: 2 Pages: 183-192
Publisher: Basrah University جامعة البصرة

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Abstract

This paper suggests the use of the traditional proportional-integral-derivative (PID) controller to control thespeed of multi Permanent Magnet Synchronous Motors (PMSMs). The PMSMs are commonly used in industrialapplications due to their high steady state torque, high power, high efficiency, low inertia and simple control of theirdrives compared to the other motors drives. In the present study a mathematical model of three phase four polesPMSM is given and simulated. The closed loop speed control for this type of motors with voltage source inverter andabc to dq blocks are designed. The multi (Master/Slaves approach) method is proposed for PMSMs. Mathwork'sMatlab/Simulink software package is selected to implement this model. The simulation results have illustrated thatthis control method can control the multi PMSMs successfully and give better performance.


Article
Speed Control of Switched Reluctance Motor Drive Based on PID Controller

Authors: Haroutuon A. Hairik --- Rabee’ H. Thejel --- Samar Hameed
Journal: Basrah Journal for Engineering Science مجلة البصرة للعلوم الهندسية ISSN: Print: 18146120; Online: 23118385 Year: 2015 Volume: 15 Issue: 1 Pages: 1-13
Publisher: Basrah University جامعة البصرة

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Abstract

This study presents a speed control design for switchedreluctance motor (SRM) drive based on PID controller. Theapplications of Switched Reluctance Motors (SRMs) have beingincreased day by day, but this type of motors represents a highlynonlinear system, therefore there are a lot of difficulties inmodeling and controlling them. We have proposed a non-linearmathematical model of a four phases 8/6 poles SRM thensimulated it through Simulink/Matlab facilities. The wholecontrol mechanism consists of a hysteresis current controller tominimize the torque ripple and a PID speed controller. Thecontrol design results are then validated in real-time bySimulink/Matlab software package.


Article
Dynamic Performance Enhancement of an Armature Controlled Separately Excited D.C. Motor
تحسين الاداء الديناميكي لمحرك التيار المستمر ذو التغذيه المنفصله للفيض المغناطيسي و بالسيطره على المنتج

Author: Zainab Basheer Abdulla زينب بشير عبد الله
Journal: Al-Rafidain University College For Sciences مجلة كلية الرافدين الجامعة للعلوم ISSN: 16816870 Year: 2015 Issue: 36 Pages: 271-304
Publisher: Rafidain University College كلية الرافدين الجامعة

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Abstract

In this paper the dynamic performance (speed regulation performance versus reference and load torque changes) of a separately excited D.C. motor is enhanced, the D.C. motor is fed by a D.C. source through a chopper which consists of GTO thyristor and free-wheeling diode. The motor drives a mechanical load characterized by inertia J, friction coefficient B, and load torque TL. The performance enhancement is achieved by using a speed control loop uses a proportional-integral (PI) controller which produces the reference signal for the current control loop and this is a (PI) current controller compares the sensed current with the reference and generates the trigger signal for the GTO thyristor to force the motor current to follow the reference. The simulation of the D.C. drive is performed using MATLAB/Simulink program version 7.10 (R2010a).

في هذا البحث قد تم تحسين الاداء الديناميكي (اداء تنظيم السرعه حسب تغير عزم الحمل) لمحرك التيار المستمر ذو التغذيه المنفصله لملفات الفيض المغناطيسي. المحرك تم تغذيته من قبل مصدر تيار مستمر و من خلال المقطع من نوع GTO و ثنائي الدوران الحر. المحرك يسوق حمل ميكانيكي ذو عزم قصور ذاتي J و معامل احتكاك B وعزم TL. ان تحسين الاداء قد تم باستعمال حلقة سيطرة السرعه والتي تستخدم المسيطر من النوع التناسبي التكاملي وهذه الحلقه تنتج اشارة المقارنه لحلقة سيطرة التيار و هذا المسيطر ايضا من النوع التناسبي التكاملي و الذى بدوره يقوم بمقارنة تيار المحرك الفعلي مع اشارة تيار المقارنه و ان ناتج المقارنه تكون اشارة القدح للمقطع GTO وذلك لجعل تيار المحرك بتتيع اشارة المقارنه. المحاكاة لسواقة التيار المستمر هذه قد تمت باستعمال برنامج الماتلاب.

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