Print ISSN: 1814-5892

Online ISSN: 2078-6069

Volume 10, Issue 2

Volume 10, Issue 2, Summer and Autumn 2014, Page 55-129


Vehicle Remote Support and Surveillance System

Ahmed J. Abid; Ramzy S. Ali

Iraqi Journal for Electrical And Electronic Engineering, Volume 10, Issue 2, Pages 55-63
DOI: 10.33762/eeej.2014.95513

the proposed design offers a complete solution to support and surveillance vehicles remotely. The offered algorithm allows a monitoring center to track vehicles; diagnoses fault remotely, control the traffic and control CO emission. The system is programmed to scan the on-board diagnostic OBD periodically or based on request to check if there are any faults and read all the available sensors, then make an early fault prediction based on the sensor readings, an experience with the vehicle type and fault history. It is so useful for people who are not familiar with fault diagnosis as well as the maintenance center. The system offers tracking the vehicle remotely, which protects it against theft and warn the driver if it exceeds the speed limit according to its location. Finally, it allows the user to report any traffic congestion and allows a vehicle navigator to be up to date with the traffic condition based on the other system’s user feedback.

Intelligent Feedback Scheduling of Control Tasks

Fatin I. Telchy

Iraqi Journal for Electrical And Electronic Engineering, Volume 10, Issue 2, Pages 64-79
DOI: 10.33762/eeej.2014.95521

an efficient feedback scheduling scheme based on the proposed Feed Forward Neural Network (FFNN)
scheme is employed to improve the overall control performance while minimizing the overhead of feedback
scheduling which exposed using the optimal solutions obtained offline by mathematical optimization methods. The
previously described FFNN is employed to adapt online the sampling periods of concurrent control tasks with
respect to changes in computing resource availability. The proposed intelligent scheduler will be examined with
different optimization algorithms. An inverted pendulum cost function is used in these experiments. Then,
simulation of three inverted pendulums as intelligent Real Time System (RTS) is described in details.
Numerical simulation results demonstrates that the proposed scheme can reduce the computational
overhead significantly while delivering almost the same overall control performance as compared to optimal
feedback scheduling

Modeling and Control of Impressed Current Cathodic Protection (ICCP) System

Dr. Khearia A.Mohammed A

Iraqi Journal for Electrical And Electronic Engineering, Volume 10, Issue 2, Pages 80-88
DOI: 10.33762/eeej.2014.95594

The corrosion of metallic structures buried in soil or submerged in water which became a problem of worldwide significance and causes most of the deterioration in petroleum industry can be controlled by cathodic protection (CP).CP is a popular technique used to minimize the corrosion of metals in a variety of large structures. To prevent corrosion, voltage between the protection metal and the auxiliary anode has to be controlled on a desired level. In this study two types of controllers will be used to set a pipeline potential at required protection level. The first one is a conventional Proportional-Integral-Derivative (PID) controller and the second are intelligent controllers (fuzzy and neural controllers).The results were simulated and implemented using MATLAB R 2010a program which offers predefined functions to develop PID, fuzzy and neural control systems.

Wirelessly Controlled Irrigation System

Zain-Aldeen S. A.Rhman

Iraqi Journal for Electrical And Electronic Engineering, Volume 10, Issue 2, Pages 89-99
DOI: 10.33762/eeej.2014.95596

In the city of Basrah, there is an urgent need to use the water for irrigation process more efficiently for many reasons: one of them, the high temperature in long summer season and the other is the lack of sources fresh water sources. In this work, a smart irrigation system based wireless sensor networks (WSNs) is implemented. This system consists of the main unit that represented by an Arduino Uno board which include an ATmega328 microcontroller, different sensors as moisture sensors, temperature sensors, humidity sensors, XBee modules and solenoid valve. Zigbee technology is used in this project for implementing wireless technology. This system has two modes one manual mode, the other is a smart mode. The set points must be changed manually according to the specified season to satisfy the given conditions for the property irrigation, and the smart operation of the system will be according to these set points.

On-Line UPS with Low Frequency Transformer for Isolation

Husham Idan Hussein

Iraqi Journal for Electrical And Electronic Engineering, Volume 10, Issue 2, Pages 100-106
DOI: 10.33762/eeej.2014.95597

This paper addressed the design of online uninterruptible power supply (UPS) system with a low frequency transformer for isolation, based on given specifications which include bypass switch and battery and taken into account the concentrated on open loop operation. Depending on the application, the online UPS system is composed by two stage conversions of AC/DC and DC/AC, the enclosure of these freeloading effects of all components and devices is very important to design the UPS system for acceptable performance. The initial stage of the design is based on the theoretical calculations and few assumptions have been made throughout the design. Simulation work has been carried out by MATLAB/Simulink program to validate the operation of the online UPS system with low frequency transformer isolation. The analysis of the results are presented and the justifications with regards to performance evaluation parameters which some are not satisfied the design specifications are discussed in details.

Matlab/Simulink Modeling of Four-leg Voltage Source Inverter With Fundamental Inverter output Voltages Vector Observation

Riyadh G. Omar; Dr.Rabee; H. Thejel

Iraqi Journal for Electrical And Electronic Engineering, Volume 10, Issue 2, Pages 107-117
DOI: 10.33762/eeej.2014.95598

Four-leg voltage source inverter is an evolution of the three-leg inverter, and was ought about by the need to handle the non-linear and unbalanced loads. In this work Matlab/ Simulink model is presented using space vector modulation technique. Simulation results for worst conditions of unbalanced linear and non-linear loads are obtained. Observation for the continuity of the fundamental inverter output voltages vector in stationary coordinate is detected for better performance. Matlab programs are executed in block functions to perform switching vector selection and space vector switching.

Speed Control of BLDC Motor Based on Recurrent Wavelet Neural Network

Adel A. Obed; Ameer L. Saleh

Iraqi Journal for Electrical And Electronic Engineering, Volume 10, Issue 2, Pages 118-129
DOI: 10.33762/eeej.2014.95599

In recent years, artificial intelligence techniques such as wavelet neural network have been applied to control the speed of the BLDC motor drive. The BLDC motor is a multivariable and nonlinear system due to variations in stator resistance and moment of inertia. Therefore, it is not easy to obtain a good performance by applying conventional PID controller. The Recurrent Wavelet Neural Network (RWNN) is proposed, in this paper, with PID controller in parallel to produce a modified controller called RWNN-PID controller, which combines the capability of the artificial neural networks for learning from the BLDC motor drive and the capability of wavelet decomposition for identification and control of dynamic system and also having the ability of self-learning and self-adapting. The proposed controller is applied for controlling the speed of BLDC motor which provides a better performance than using conventional controllers with a wide range of speed. The parameters of the proposed controller are optimized using Particle Swarm Optimization (PSO) algorithm. The BLDC motor drive with RWNN-PID controller through simulation results proves a better in the performance and stability compared with using conventional PID and classical WNN-PID controllers.