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28,451 Article Results

Transformerless high gain boost converter for low power applications with feedback control

10.11591/ijeecs.v16.i2.pp244-255
Md Yaseen , dr. P Usha
A transformer-less boost converter which provides high voltage gain without utilizing transformer or coupled inductors and extreme duty cycle is proposed in this paper.  Also it is able to cancel the ripples in the input current at a preselected duty cycle, without increasing the number of components. The converter combines the features of boost converter and a three switch high voltage converter. At the input side, two inductors are interleaved for cancelling the input current ripple and at the output side switched capacitor voltage multiplier is used to increase the voltage gain. Feedback control is used to make the output voltage constant in spite of variation in the input or load or both i.e. both line and load regulation is accompanied. This proposed converter configuration helps eliminate the input current ripple and provides voltage deregulation for low power applications.
Volume: 16
Issue: 2
Page: 244-255
Publish at: 2015-11-01

An Improved Immune Clone Selection Algorithm for Palm Bio-impedance Spectroscopy

10.11591/ijeecs.v16.i2.pp363-368
LinTao LV , QinQin Yuan , YuXiang Yang
A kind of effective feature model of palm BIS data is presented according to the features of Palm bio-impedance spectroscopy (BIS) data. Based on immune clone algorithm and least squares method, an improved palm BIS feature selection algorithm is established,which can be applied to obtain the optimal feature subset that can be completely represented the palm BIS data, Finally, the algorithm is compared with other algorithms. The experimental results show that the accuracy of the feature subset obtained by the algorithm has reached 93.2 in SVM classification algorithm test.Therefore, the algorithm in this article is valid and reliable , which is of high theoretical and practical value.
Volume: 16
Issue: 2
Page: 363-368
Publish at: 2015-11-01

Transient Analysis of the Self Excited Induction Generator Subjected to Grid Disturbances

10.11591/ijeecs.v16.i2.pp199-206
Malika Imadouchene
The present paper analyzes the consequences of short grid voltages interruptions on grid-connected self-induction generator, particularly, on the currents and electromagnetic torque of the generator. These effects depend on several variables such as the phase difference between the grid voltages and those of the generator, the magnitude of the grid voltage and the generator currents at the instant of reconnection to the grid. The approach has been used for studying the effects of these grid disturbances on the self-excited induction generator; is a numerical approach. In the numerical approach, which is based on the dynamic d-q model of the induction generator, the effect of magnetic saturation is accurately accounted for. This numerical model has been validated by experimental measurements taken from an induction generator test bench. The analysis focuses on the amplitudes of the peaks of the currents and torque during short interruptions especially at the reconnection of the grid voltage. The results obtained from the numerical model are compared to the measured ones.
Volume: 16
Issue: 2
Page: 199-206
Publish at: 2015-11-01

Technologies used in Smart Grid to implement Power Distribution System

10.11591/ijeecs.v16.i2.pp232-237
Raja Masood Larik , Mohd Wazir Mustafa
Recently, the debate has been going on about the role of power plus distribution systems, its technologies for future smart grids in power systems. The emerging of new technologies in smart grid and power distribution systems provide a significant change in terms of reduction the commercial and technical losses, improve the rationalization of electricity tariff. The new technologies in smart grid systems have different capabilities to increase the technological efficiency in power distribution systems. These new technologies are the foreseeable solution to address the power system issues. This paper gives a brief detail of new technologies in smart grid systems for its power distribution systems, benefits and recent challenges. The paper provides a brief detail for new researchers and engineers about new technologies in smart grid systems and how to change traditional distribution systems into new smart systems.
Volume: 16
Issue: 2
Page: 232-237
Publish at: 2015-11-01

eXSRUP: Hybrid Software Development Model Integrating Extreme Programing, Scrum & Rational Unified Process

10.11591/ijeecs.v16.i2.pp377-388
Nidhi Sharma , Manoj Wadhwa
Software industries are progressively adopting the agile development practices of customized models such as Extreme Programming (XP) or Scrum or Rational Unified Process (RUP). Scrum and Extreme Programming (XP) are frequently used agile models, whereas Rational Unified Process (RUP) is one popular classic plan driven software development methodology. Both agile and plan driven models have their own merits & demerits such as XP has good engineering practices, team collaboration and on the other hand weak documentation, poor performance in medium & large scale projects. Scrum is based on project management practices. RUP model has some limitations such as impractical for small and fast paced projects, tendency to be over budgeted, condemn rapid changes in requirements. This research paper based on proposes hybrid framework eXSRUP by combining strengths of Scrum, XP and RUP by suppressing their limitations to produce high quality software.
Volume: 16
Issue: 2
Page: 377-388
Publish at: 2015-11-01

Study of BGP Convergence Time: A Survey

10.11591/ijeecs.v16.i2.pp341-349
Rohit Nilkanth Devikar , Dipak V. Patil , V. Chandraprakash
Border Gatway Protocol (BGP), a path vector routing protocol, is a widespread exterior gateway protocol (EGP) in the internet. Extensive deployment of the new technologies in internet, protocols need to have continuous improvements in its behavior and operations. New routing technologies conserve a top level of service availability. Hence, due to topological changes, BGP needs to achieve a fast network convergence. Now a days size of the network growing very rapidly. To maintain the high scalability in the network BGP needs to avoid instability. The instability and failures may cause the network into an unstable state, which significantly increases the network convergence time. This paper summarizes the various approaches like BGP policies, instability, and fault detection etc. to improve the convergence time of BGP.
Volume: 16
Issue: 2
Page: 341-349
Publish at: 2015-11-01

Application of Power Matrix Technique for Controlling DFIG Wind Turbine System

10.11591/ijeecs.v16.i2.pp265-271
S. Jabeer Basha , Loveswara Rao Burthi
With advance in usage of wind turbine technologies, as compared with other renewable sources the cost of wind turbine becomes competitive. Due to this economic problem, other disadvantages and by considering the global warming, the utilization of wind turbine has increased since last decade. For maintain the active power at constant, the use of Doubly-Fed Induction Generators with Energy Storage System like super capacitor (or) batteries can be used, with a two layer control scheme. This paper presents a novel concept for controlling doubly fed induction generator called power transfer matrix. This power transfer matrix technique is designed based on the instantaneous values of active and reactive power of the system. In order to protect the DFIG during fault conditions a matrix converter scheme based power/current controller is presented.
Volume: 16
Issue: 2
Page: 265-271
Publish at: 2015-11-01

Modeling of Split Ring Resonators loaded microstrip line with different orientations

10.11591/ijece.v5i6.pp1363-1371
Rajni Rajni , Gurwinder Singh , Anupma Marwaha
This paper presents the different circuit approaches of the electric and magnetic interaction of Single Split Ring Resonator (SRR) loaded microstrip line. We loaded the microstrip line with planar square split ring resonator in different configurations and orientations. The modeling behavior of metamaterials-based microstrip lines loaded with single and two-mirrored split ring resonators is analyzed numerically in two orientations (with gap of SRR parallel and perpendicular to the line). The full wave simulations are performed for the single and two-mirrored split ring resonators loaded microstrip inside a waveguide with ‘High Frequency Structure Simulator’ software. The equivalent circuit parameters are obtained for the single split ring resonator loaded with microstrip line with the gap parallel and near to the line from transmission line theory  that make use of just the resonance frequency and minimum of the reflection coefficient. The simulation of different orientations of split ring resonator gives better reflection coefficient and wider frequency.
Volume: 5
Issue: 6
Page: 1363-1371
Publish at: 2015-11-01

Sparse Representation Based Super-Resolution Algorithm using Wavelet Domain Interpolation and Nonlocal Means

10.11591/ijeecs.v16.i2.pp296-302
Gunnam Suryanarayana , Ravindra Dhuli
In this correspondence, we propose a novel image resolution enhancement algorithm based on discretewavelet transform (DWT), stationary wavelet transform (SWT) and sparse signal recovery of the inputimage. The nonlocal means filter is employed in the preliminary denoising stage of the proposed method.The denoised input low resolution (LR) image is then decomposed into different frequency subbands byemploying DWT and SWT simultaneously. In parallel, the denoised LR image is subjected to a sparse signalrepresentation based interpolation. All the estimated high frequency subbands as well as the sparseinterpolated LR image are fused to generate a high resolution (HR) image by using inverse discrete wavelettransform (IDWT). Experimental results on various test images show the superiority of our method over theconventional and state-of-the-art single image super- resolution (SR) techniques in achieving the real timeperformance.
Volume: 16
Issue: 2
Page: 296-302
Publish at: 2015-11-01

Prediction of Poor Inhabitant Number Using Least Square and Moving Average Method

10.11591/ijeecs.v16.i2.pp369-376
Ningrum Ekawati
Poor population in South Kalimantan recently shows a decreased number for the last three years, compared to few previous years. The number of poor population differs from time to time. This dynamical scaled number has actually been a problem for South Kalimantan local government to take proper policies to solve this matter.  It will then be necessary to predict potential number of poor population in the next year as the basis of subsequent policy making. This research will apply both Least Square and Moving Average methods as measurement to count prediction values. From the result, we can say that prediction analysis using those two methods is valid for predicting acquired number of potential people population based on its previous data due to its closest result to the actual condition. Reviewing the test result of last three years, the applied least square method shows validity of 92, 8%. Meanwhile, the applied moving average method shows validity of 98,8% both are considered valid.
Volume: 16
Issue: 2
Page: 369-376
Publish at: 2015-11-01

Combination of Ant Colony Optimization with Local Triangular Kernel Clustering for Vehicle Routing Problem with Time Windows

10.11591/ijeecs.v16.i2.pp355-362
Aina Musdholifah , Rahman Indra Kesuma
VRP is a common problem that occurred in logistics, including determination a route of products from the source to the destination. VRPTW is variation of VRP that use routing concepts in the serving process at the certain time interval. Recently, many methods are used to solve this optimization problem, for example ACO. LTKC-ACO was developed to improve the ACO solutions that apply LTKC to obtain a number of classes that are considered as the candidate list in ACO. Local Search is also used to avoid ACO getting stuck in the local optimum. In this study, two types of LTKC-ACO are developed that’s related to time windows parameter usage in clustering. The experimental result of 56 Solomon’s datasets showed that LTKC-ACO can improve the ACO solutions on 73,21% of datasets and can out performed then the other methods, especially on the datasets that have longer scheduling of service time.
Volume: 16
Issue: 2
Page: 355-362
Publish at: 2015-11-01

Research on the Glass Silicon Anodic Direct Bonding Parameters

10.11591/ijeecs.v16.i2.pp291-295
Jia Li , Guo Hao , Guo Zhiping , Miao Shujing
By MEMS packaging test platform for bonding process of bonding temperature and bonding time,and test silicon specifications experimental study.Firstly,according to the anodic bonding principle,the main factors to detemine the effect of bonding quality.Secodly,change the bonding temperature,bonding time,and test wafer size and other parameters,glass silicon bonding contrast test.Finally,the calculation and analysis of comparative test of each group is bonded porosity,summanrized the factors that affect the quality of the bonding and bonding to achieve the best results in the bonding conditions.Experimental results indicate that when the bonding voltage of 1200V,bonding temperature of 445-455c,bonding time is 60s,the void fractin is less than 5%.Glass and Silicon wafer bonding quality can achieve the best. The experimental results in order to improve the glass silicon bonding quaity provides the basis.
Volume: 16
Issue: 2
Page: 291-295
Publish at: 2015-11-01

Performance Analysis of Various Phases of SRM with Classical and New Compact Converter

10.11591/ijeecs.v16.i2.pp256-264
S.M. Mohamed Saleem , L. Senthil Murugan
In recent years, considerable attention has been given to find the compact and low cost power converter topology for Switched Reluctance Motor (SRM) drive to meet the emerging applications such as plotters, fans, pumps, screw rotary compressor drives, high speed application drives above 30,000 RPM. This paper is concerned with such as attempt to formulate a new compact power converter for SRM drive. The proposed power converter has reduced number of power electronic components which makes the converter compact and also reduce the switching losses. The power factor plays a vital issue in the usage of power electronic converters. The power boost converter and PI controller. A Simulink system is developed for 3Φ SRM by using MATLAB software. The proposed converter performance is compared with the classical converter and analysis results are presented.
Volume: 16
Issue: 2
Page: 256-264
Publish at: 2015-11-01

Sufficient Authentication for Energy Consumption in Wireless Sensor Networks

10.11591/ijeecs.v16.i2.pp316-322
SK. Riaz , V. Srirammanoj
Given the understanding of the prospective WSN programs and because of source restrictions, key management emerges as a complicated problem for WSNs. One of the main issues when developing a key management scheme is the system scalability. Indeed, the method should assistance a huge number of nodes to allow a large range implementation of the system. In this paper we implemented a performance trade-off research of power intake vs. We urbanized a novel probability style to evaluate the best redundancy stage in terms of direction redundancy (mp) and resource redundancy (ms), as well as the best attack identification configurations with regards to the number of voters (m) and the attack incantation interval under which the life-time of a heterogeneous wireless sensor network is optimized while fulfilling the stability, timeliness and protection specifications of question processing applications in the existence of untrustworthy wireless communication and harmful nodes. Lastly, we used our analysis outcomes to the style of powerful redundancy management criteria to recognize and implement the best design parameter configurations at playback in reaction to environment changes to extend the program life-time.
Volume: 16
Issue: 2
Page: 316-322
Publish at: 2015-11-01

The Effect of Deposition Rate on the Electrical Properties of Indium Tin Oxide (ITO) Thin Films

10.11591/ijeecs.v16.i2.pp286-290
Hadaate Ullah , Shahin Mahmud , Fahmida Sharmin Jui
Indium-tin oxide (ITO) which is optically transparent is referred as a “universal” electrode for various optoelectronic devices such as organic light emitting diodes (OLEDs). It is scientifically proved that the performance of OLEDs raises up significantly by exposing the ITO surface to oxygen plasma. This study employs conducting atomic force microscopy (C-AFM) for unique nanometer-scale mapping of the local current density of a vapor-deposited ITO film. Indium Tin Oxide (ITO) thin films have been prepared by using the reactive evaporation method on glass substrates in an oxygen atmosphere. It is found that the deposition rate plays a vital role in controlling the electrical properties of the ITO thin films. The resistivity and the electrical conductivity were also investigated. The electrical resistivity of 3.10 x10 –6 Ωm has been obtained with a deposition rate of 2 nm/min.
Volume: 16
Issue: 2
Page: 286-290
Publish at: 2015-11-01
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