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النمذجة والمحاكاة الفيزيائية الحرارية لعاكس مصدر فولتية == Physical Thermal Modeling and Simulation of a Voltage Source Inverter

Author name: احمد شهاب احمد جاسم
Supervisor name: رياض غانم عمر
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:

تحليل مقارن لطرق سيطرة على مولد الرياح متعدد السرع == Comparative Analysis of Control Schemes for A Variable Speed Wind Generator

Author name: احمد ستار جابر
Supervisor name: قاسم عبد الرزاق علي الانباري | علي جعفر مهدي الحسيني
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:

تقييم تاثير المولدات الموزعة على شبكة كهرباء المنطقة الوسطى في العراق == Impact Assessment of Distributed Generation on Iraqi Middle Region Network

Author name: احسان موسى جواد
Supervisor name: وفاء سعيد مجيد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:

تحليل وتصميم وتنفيذ محول معدل ذو ربح عالي نوع SEPIC == Analysis, Design and Implementation of a Modified High Gain SEPIC Converter

Author name: احسان احمد مجبل
Supervisor name: تركي كحيوش حسن
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:

المحددات الامنة لتدفق القدرة الامثل اعتمادا على تقنية التطور التفاضلي == Security Constraints Optimal Power Flow based on Differential Evolution Technique

Author name: ايمن عبد الكاظم فاضل
Supervisor name: ايمن عبد الكاظم فاضل
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تصميم ونمذجة وتنفيذ منظومة حماية كاثودية نوع التيار القسري للانابيب المعدنية المغمورة في التربة == Design, Simulation, and Implementation of an Impressed Current Cathodic Protection System for Buried Metallic Pipes

Author name: سيف الدين حسين محمد
Supervisor name: عصام محمود عبد الباقي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تحليلات حرارية مقارنة لمحرك حثي ثلاثي الطور ذو القفص السنجابي == Comparative Thermal Analyses of a Three - Phase Squirrel Cage Induction Motor

Author name: افراح ثامر عبد الله
Supervisor name: عامر مجبل علي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

محول مصفوفة غير مباشر ذو مصدر شبيه الممانعة المغذي لمحرك تزامني دائم المغناطيس == Quasi Z - Source Indirect Matrix Converter Fed Permanent Magnet Synchronous Motor Drive

Author name: احمد مثنى نوري
Supervisor name: تركي كحيوش حسن
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تصميم محولة التردد العالي والمحاثة لمحولات نوع (DC-DC) == Design of High Frequency Transformer and Inductor for DC-DC Converters

Author name: ريم فلاح حسن
Supervisor name: قاسم رشيد حميد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:

المعوضات الاستاتيكية المثلى في تحليل سريان الحمل بالاعتماد على خوارزمية مستعمرة النحل الاصطناعي المحدثة == Optimized of SVC in Load Flow Analysis Based on Modified Artificial Bee Colony Algorithm

Author name: هشام مؤيد نايف
Supervisor name: قاسم عبد الرزاق الانباري
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

التقنيات المثلى لتخمين الحالة الاستاتيكية في نظم القدرة == Optimized Techniques for Static State Estimation in Power Systems

Author name: محمد فالح حسن
Supervisor name: قاسم عبد الرزاق الانباري
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تعزيز وثوقية منظومة التوزيع باضافة وحدات توليدية موزعة باعتماد منهجية فروع المنطقة == Reliability Enhancement of a Distribution System by Injecting Distributed Generation Based on Zone Branches Methodology

Author name: غسان حرز عبدعلي
Supervisor name: وفاء سعيد مجيد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

دراسة منظومه فوتوفولتائيه مربوطة بالشبكة == Study of Grid-Connected Photovoltaic System

Author name: عماد عبد الرضا حميد
Supervisor name: قاسم عبد الرزاق علي الانباري | علي جعفر مهدي الحسيني
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تحري سريان القذرة المستمرة مع اضافه متسعات التوازي في شبكه التوزيع الكهربائية == Investigation of Continuation Power Flow and Capacitor Placement in Electrical Distribution System

Author name: علاء سعد حسين
Supervisor name: قاسم عبد الرزاق الانباري
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

اداء السرعة للمسيطر الاتجاهي لمحرك تزامني بمغناطيس دائم مغذى بمحول مصفوفة غير مباشر == Speed Performance Based Vector-Controlled Permanent Magnet Synchronous Motor Fed by Indirect Matrix Converter

Author name: زينب محمود عبد
Supervisor name: تركي كحيوش حسن
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تصميم ومحاكاة وبناء ملف حثي لاغراض التقسية السطحية لمسنن من الفولاذ الكاربوني CK-45 == Design, Simulation and Implementation of an Induction Coil for Surface Hardening of a Carbon Steel (CK-45) Gear

Author name: حمدان فراس صبيح
Supervisor name: عصام محمود عبد الباقي | صاحب محمد مهدي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تخمين خسائر المحرك الحثي ثلاثي الطور بواسطة طريقة العنصر المحدد == Losses Estimation of Three Phase Induction Motor by Finite Element Method

Author name: احمد نعيم عبد الصاحب
Supervisor name: عامر مجبل علي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

تحليل وتصميم منظومة فوتوفولتائية تغذي مضخة ري ذات محرك حثي ثلاثي الطور باستخدام تقنية تضمين عرض النبضة للمتجه الفضائي == Analysis and Design of a Photovoltaic System Fed Three-Phase Induction Motor as Irrigation Pump Using Space Vector Pulse Width Modulation Technique

Author name: احمد ثائر محسن
Supervisor name: عصام محمود عبد الباقي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

توزيع المجال الكهربائي لمحولة 33\0،416 كيلوفولت وتقييم العوازل باعتماد طريقة العنصر المحدد == Electric Field Distribution of 33/0.416kV Transformer and Insulation Assessment Based on FEM

Author name: ابراهيم جليل جبر
Supervisor name: قاسم رشيد حميد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University
Language: English
University location: Baghdad
First pages:

مبدل فوتوفولطائي مايكروي احادي المرحلة نوع فلايباك المغذي للشبكة == Single Stage Grid - Connected Flyback Photovoltaic Microinverter

Author name: مصطفى عباس فضل
Supervisor name: تركي كحیوش حسن
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: Solar energy systems based on photovoltaic (PV) cells have attracted considerable interest in recent years due to their abilities of clear and seemingly limitless generated energy. Solar energy systems based on microinverter architectures are earning in publicity as they are less prone to shading and PV cell malfunction since each PV panel in the system has its own low power inverter.In this thesis two alternative modes of operation for the current source flyback microinverter are suggested : the discontinuous conduction mode (DCM), where a constant switching frequency (CSF) control method is applied, and the boundary conduction mode (BCM) between continuous conduction mode (CCM) and DCM, where a variable switching frequency (VSF) control method is used. These two control methods are analytically studied and compared in order to establish their advantages as well as their suitability for the development of an inverter for grid - connected PV applications.An optimum design methodology is developed, aiming for an inverter with the smallest possible volume for the maximum power transfer to the public grid and wide PV energy exploitation. The main advantages of the current source flyback microinverter are very high power density and high efficiency due to its simple structure, as well as high power factorregulation. The design and control methodology are validated by Powersimulation software (PSIM) and a laboratory hardware prototype is buildusing analogue and digital devices.The microcontroller type (PIC - 18F45K22) is used to implement perturb and observe (P&O) maximum power point tracking (MPPT) algorithm, and C language is used for programing the microcontroller. The simulation and experimental results are obtained to verify the proposed flyback microinverter.

مسيطر السرعة المثالي بالاعتماد على المتجه المسيطر لمسوق محرك التيار المستمر عديم الفرش == Optimal Speed Controller Based On Vector Controlled For A Brushless DC Motor Drive

Author name: مصطفى بشار عبد الملك
Supervisor name: تركي كحيوش حسن
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: اصبحت محركات التيار المستمر عديمة الفرش شائعة جدا في الكثير من المجالات مثل في الصناعة والتطبيقات المنزلية؛ وذلك يعود الى مميزاتها العديدة على محركات التيار المستمر ذوات الفرش والمحركات الحثية؛ مثل كفائتها العالية, كثافة قدرتها العالية وحجمها الصغيرنسب | Brushless DC (BLDC) motors have become very popular in various fields such as in industry or home appliances; and that is due to their many advantages over the brushed DC motors and the induction motors such as their higher efficiency, high power density and respectively low volume. The traditional and most popular way to drive BLDC motor is by using six - step or trapezoidal technique. This technique however has several problems such as high torque ripple and high distortion in the currents. This thesis presents a BLDC motor drive system where the performance of the motor is improved on various aspects. The first aspect is to improve the speed response by using particle swarm optimization (PSO) technique to find the optimal parameters of the speed controller. The second aspect is to reduce the torque ripple associated with the traditional driving technique and also improve the dynamic response of the motor by using vector or field - oriented control to drive the motor. The third aspect is improving the total harmonic distortion (THD) of the voltages and currents by using multilevel inverter. The last aspect is driving the motor in sensorless operation for reduced cost and for applications where speed and position sensors cannot be used; this operation uses a flux - linkage observer with a phase - locked loop (PLL) structure to estimate the position and speed of the rotor. The control methods are modeled using MATLAB/Simulink program and the results show that the proposed systems has significant improvement in performance as compared with the traditional technique in terms of speed response, torque ripple and THD of the voltages and currents

خوارزمية فعالة للسيطرة على التردد اثناء تغيير الحمل في منظومة القدرة == An Effective Algorithm Of Load Frequency Control In Power System

Author name: ساره عباس حسين
Supervisor name: قاسم عبد الرزاق الانباري | عباس حسين مري
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: في السنوات السابقة، زادت اهمية تحسين النظام الكهربائي. وان ثبوت التردد هو واحدة من الاشياء التي اثرت في خصائص النظام الكهربائي هي ثبوتية التردد. ولهذه الغاية، وحدة التوليد ملحقة بمسيطر اوتوماتيكي على التردد اثناء تغيير الحمل (LFC) لتنظيم القدرة الفعالة | In recent years, the importance of improving electrical power has been increased. One of the things influenced the characteristic of electrical power is the constancy of frequency. To this end, the generator unit is equipped with an automatic load frequency control (LFC) to adjust the active power produced and restore the frequency and tie line power exchange to their nominal value.The total model of a hybrid power system has a high dimension. The classical design tools are inadequate to cope with all dynamic features. Artificial intelligence techniques are found to be a promising tool to optimally minimize the transient dynamics and control efforts in a load frequency control. This thesis shows the execution of various Artificial Intelligence techniques on the tuning of PID controller in a load frequency control system to compute the PID controller. The techniques of genetic algorithm technique GA, particle swarm optimization PSO and artificial bee colony ABC were applied on four areas, six tie lines power system. The dynamic model was formulated in state variables form. A comparison between these techniques with different performance indices was presented. Results of the test system 1 and 2 were computed and compared. They showed that in test system 2 the load frequency controller can chase the load fluctuation in a short time. The IAE performance index gives an optimum dynamic performance using ABC. From the outcomes, they show that the test system 2 outputs regarding settling time and maximum overshoot were the best performances.

تصميم وبناء شاحنة بطاريات ذكية لمنظومة القدرة التي تعمل بالالواح الفوتوفولطائية == Design And Implementation Of An Intelligent Battery Charger For A Photovoltaic Power System

Author name: حسين سعود مرض
Supervisor name: عصام محمود عبد الباقي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Electrical Engineering - Power and Machinery
Degree: Master
University: Mustansiriyah University - College Of Engineering - Department Of Electrical Engineering
Language: English
University location: Baghdad
First pages:
Abstract: ان الهدف الرئيسي من هذه الرسالة هو استخدام الطاقة الشمسية لشحن بطاريات الرصاص الحمضية. تعتبر الشاحنة من اهم اجزاء المنظومة الشمسية وذلك لكون بطاريات الخزن هي الجزء الوحيد المحدود العمر منها. بطاريات التخزين ضرورية في جميع المنظومات الكهربائية الشمسية المس | The main goal of this thesis is to use the photovoltaic (PV) power to charge Lead - acid batteries. The charger is the most important part of the solar system because the only limited - age part of this system is the storage batteries. Storage batteries are essential in all standalone PV power systems. Their efficiency and life time affects significantly the overall PV system performance and economics. The storage battery's effectiveness depends on the charging process. Hence, this thesis deals with the study, simulation and design of an intelligent charger fed by solar system due to the latest technologies.The developed charging method entitled "the decreased charging current based on state of charge" is adopted in this thesis to charge a lead - acid battery. The principle of decreased charging current is to make the real charging current as close as possible to the maximum acceptable current. The advantage of this technique is to mix between the rapidity of charging and prevents of the overcharging and generates gases.The maximum power point tracking (MPPT) technique is adopted to maximize the PV output power, whatever of the temperature and irradiation conditions. The design considers different operating conditions of load, battery state of charge (SOC) and ambient effect in order to achieve the best charging condition of the batteries and to be compatible with the user requirements. The flexible, simple and cheap design is the objective of this charger.This PV charging system is composed of a solar panel, lead - acid batteries, buck converter as power charging circuit and a microcontroller as a control unit.The simulation results are achieved by using Simulink Proteus Isis Professional software. These results demonstrated the validity of the proposed charging technique. The battery charger prototype was tested and the obtained results agree with those obtained from the simulation
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