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Bulletin of Electrical Engineering and Informatics

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Published by Institute of Advanced Engineering and Science

ISSN : - EISSN : - DOI : -

Core Subject : Science, Engineering,

Computer Science & IT Electrical & Electronics Engineering Engineering

Bulletin of Electrical Engineering and Informatics ISSN: 2302-9285 is open to submission from scholars and experts in the wide areas of electrical, electronics, instrumentation, control, telecommunication, computer engineering, computer science, information technology and informatics from the global world. The journal publishes original papers in the field of electrical (power), electronics, instrumentation & control, telecommunication and computer engineering; computer science; information technology and informatics. Authors must strictly follow the guide for authors. Please read these instructions carefully and follow them strictly. In this way you will help ensure that the review and publication of your paper is as efficient and quick as possible. The editors reserve the right to reject manuscripts that are not in accordance with these instructions.

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Articles 539 Documents

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Using HBMO Algorithm to Optimal Sizing & Sitting of Distributed Generation in Power System Noradin Ghadimi
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

This paper analyzes of HBMO placement method efficiency in comparison with PSO and GA in order to sizing and sitting of distributed generation in distribution power system. These algorithms for optimization in this paper is tested on IEEE 33 bus reconfigured test system. The proposed objective function considers active power losses and the voltage profile in nominal load of system. In order to use of optimization algorithms, at first, placement problem is written as an optimization problem which includes the objective function and constraints, and then to achieve the most desirable results, Optimization methods is applied to solve the problem. High performance of the proposed algorithm in mention system is verified by simulations in MATLAB software and in order to illustrate of feasibility of proposed method will accomplish.

Management of Urban Parking Lot Energy Efficiency with the Application of Wind Turbine and LED lights Bekir Z Yuksek; Ulan Dakeev
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

A study of a parking lot lighting of a large manufacturing company in Iowa was implemented to evaluate monthly energy consumption. Mercury light bulbs with 227W ratings on the light poles were replaced with low power energy efficient LEDs to increase the overall efficiency. Additionally, a small scale wind turbine was installed to supply power to experimental light poles. Migration from the current gas bulbs to the LED light results yielded about 60% energy savings, while capital gains due to the generation of wind energy returned about 80% savings per month which recovered initial investments on the assets. The environmental impact of this study cannot be neglected and it also provided opportunity for STEM education in colleges and wind energy awareness in the society in Iowa by showing benefits from current experiments. Details of the methods and analyses should be particularly useful to urban planners because they show how standard references on investment in automobile parking should be modified to include efficient energy management. The authors proposed new way to limit the cost of energy consumptions and environmental pollution on wildlife and human health. Research implications are discussed in terms of the impact of natural features in urban areas for reduction of green house gas emissions and promoting alternative energy sources.

Indirect Vector Control of Three Phase Induction Motor using PSIM Nagulapati Kiran
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

This paper presents the implementation of indirect vector control of three phase Induction Motor using Hysteresis Band PWM current control and Synchronous Current Control in PSIM environment. In any machine drive system, current control directly influences both flux and torque developed directly. In Hysteresis current control method, actual current tracks the command current within a hysteresis band. There is no difficulty in current control tracking when CEMF is low, but at higher speeds, current controller gets saturated due to higher CEMF and hense becomes difficult to track due to which there will be a phase lag with respect to command current. All such problems are solved using Synchronous Current Control.

Improved Dynamic Response of Buck Converter using Fuzzy Controller Nagulapati Kiran; Ch Varaha Narasimha Raja
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

This paper presents comparative performance of Buck Converter in both open as well as closed loop. With the help state equations Mathematical Model of Buck Converter is designed in MATLAB/SIMULINK. The obtained output response of open loop Buck Converter is sluggish, not optimum and consists of peak overshoots. PI Controller is used in closed loop model of Buck Converter. Output Voltage is compared with a reference signal, which then is processed through a controller (PI/Fuzzy). The obtained signal is superimposed with a carrier signal and given to switching device used. To further optimize the performance of Buck Converter and eliminate the peak overshoot present in output response, Fuzzy controller is used. Here Suguno type Fuzzy is used.

Sliding Mode Control of Buck Converter Nagulapati Kiran
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

DC-DC converters are used to convert DC voltage from one level to other. These converters are drastically used in industry as well as in research. One of the main limitations of these converters is unregulated supply of voltage and current. To overcome these problems there are various control techniques. This paper presents two such methods. This paper compares dynamic performance of buck Converter using PID controller and Sliding mode controller. Simulation of PI and Sliding mode control of Buck Converter is carried out in MATLAB SIMULINK.

Two Parameter Controller for a Single Machine Infinite Bus System Ch. Varaha Narasimha Raja
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

This paper shows the application of two parameter controller with internal-Model principle to a single machine- infinite bus system (SMIB), to achieve design specifications and disturbance rejection. In the two parameter model the feedback- compensator is used to achieve required transient response by pole placement and input compensator is used to achieve required steady state response. Finally this method concludes that the method is systematic, general and yields good results.

A Hybrid Hardware Verification Technique in FPGA Design Mojtaba.Dehghani Firouzabadi; Hossein Heidari
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

Assertion-based verification (ABV) is best emerging technique for verification of industrial hardware. Property Specification Language (PSL) is one of the most important components of ABV. In this paper we present a method to emulate hardware that is capable of support ABV that in it assertion expressions mapped to HDL. We simulated this method by an applicable example by Modelsim software. Test results indicate that this method performance is good.

A Genuine Random Sequential Multi-signature Scheme Yonglong Tang
Bulletin of Electrical Engineering and Informatics Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

The usual sequential multi-signature scheme allows the multi-signers to sign the document with their own information and sequence, and the signature is not real random and secure. The paper analyzes the reasons for the insecurity of the previous multi-signature scheme, and puts forward a Genuine Random Sequential Multi-signature Scheme based on The Waters signature scheme, and the experiment proves that this scheme is a good scheme suitable for the practical application with high computing efficiency.

Numerical Study of CNT Micro Fin Array for Cooling Application Sajjad Nabizadeh; T. Fanaei Sheikholeslami; Amin Behzadmehr
Bulletin of Electrical Engineering and Informatics Vol 2, No 4: December 2013
Publisher : Institute of Advanced Engineering and Science

Heat removing from a microelectronic chip packaging has grand effect on performance and durability of the chip. Today’s microchips with high power densities would require efficient methods of cooling. Recently, vertical alignment CNTs, due to their superior thermal, electrical and mechanical properties, was suggested as an effective micro cooler on the level of modern electronics demands. In this paper, the cooling performance of the CNT fin structures is studied numerically. Flow of air was considered as the working fluid flow. CFD simulations have been carried out for a series of CNT micro-fin cooling architectures based on one and two dimensional fin array models. The modeling results indicate that fluid speed is the key factor in heat transfer capacity of the device. Also, the results of 2D carbon nanotube fin array model show more precise and greater thermal performance than that of 1D model. Finally, the examination of pressure drop between inlet and outlet of the cooling device is presented as an important factor which could limit the fluid speed and fin height effect on heat sink performance also investigated.

Adaptive E-Learning Based on Learner's Styles Hazem M. El-Bakry; Ahmed A. Saleh
Bulletin of Electrical Engineering and Informatics Vol 2, No 4: December 2013
Publisher : Institute of Advanced Engineering and Science

In this paper, a new model for adaptive e-learning based on learner's styles is presented. In the previous work, the dimensions of learner's styles given by Felder-Silverman did not consider some important issues of the learner himself. Here, new learner's parameters such as his social environment, health conditions, psychological and economical states are taken into account. Such parameters greatly affect the ability of student to learn and understand. Therefore, in order to perfectly recognize the ability of the student to be interactive in the leaning environment and accept information, new learner's styles are added to the dimensions of Felder-Silverman learning style model and our previous work [24]. The new proposed model is applied for logic gates and functions used in data encoding and computer networks. Such model presents suitable courses for each student in a dynamic and adaptive manner using existing database and workflow technologies. Furthermore, it is powerful, user friendly and easy to interpret. Moreover, it suggests a learning strategy and appropriate electronic media that match the learner’s preference.

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