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29,758 Article Results

Hybrid Artificial Neural Network with Meta-heuristics for Grid-Connected Photovoltaic System Output Prediction

10.11591/ijeecs.v11.i1.pp121-128
Norfarizani Nordin , Shahril Irwan Sulaiman , Ahmad Maliki Omar
This paper presents the performance evaluation of hybrid Artificial Neural Network (ANN) model with selected meta-heuristics for predicting the AC output power fof a Grid-Connected Photovoltaic (GCPV). The ANN has been hybridized with three meta-heuristics, i.e. Cuckoo Search Algorithm (CSA), Evolutionary Programming (EP) and Firefly Algorithm (FA) separately. These meta-heuristics were used to optimize the number of neurons, learning rate and momentum rate such that the Root Mean Square Error (RMSE) of the prediction was minimized during the ANN training process. The results showed that CSA had outperformed EP and FA in producing the lowest RMSE. Later, Mutated Cuckoo Search Algorithm (MCSA) was introduced by incorporating Gaussian mutation operator in the conventional CSA. Further investigation showed that MSCA performed better prediction when compared with the conventional CSA in terms of RMSE and computation time.
Volume: 11
Issue: 1
Page: 121-128
Publish at: 2018-07-01

On the Review and Setup of Security Audit using Kali Linux

10.11591/ijeecs.v11.i1.pp51-59
Teddy Surya Gunawan , Muhammad Kassim Lim , Nurul Fariza Zulkurnain , Mira Kartiwi
The massive development of technology especially in computers, mobile devices, and networking has bring security issue forward as primarily concern. The computers and mobile devices connected to Internet are exposed to numerous threats and exploits. With the utilization of penetration testing, vulnerabilities of a system can be identified and simulated attack can be launched to determine how severe the vulnerabilities are. This paper reviewed some of the security concepts, including penetration testing, security analysis, and security audit. On the other hand, Kali Linux is the most popular penetration testing and security audit platform with advanced tools to detect any vulnerabilities uncovered in the target machine. For this purpose, Kali Linux setup and installation will be described in more details. Moreover, a method to install vulnerable server was also presented. Further research including simulated attacks to vulnerable server on both web and firewall system will be conducted.
Volume: 11
Issue: 1
Page: 51-59
Publish at: 2018-07-01

Analysis of CMOS Logic and Transmission Gate for 64 Bit Parallel Prefix Adders

10.11591/ijres.v7.i2.pp115-123
Nehru.K K , Nagarjuna T , Somanaidu U
Parallel prefix adder network is a type of carry look ahead adder structure. It is widely considered as the fastest adder and used for high performance arithmetic circuits in the digital signal processors. In this article, an introduction to the design of 64 bit parallel prefix adder using transmission technique which acquires least no of nodes with the lowest transistor count and low power consumption is presented. The 64 bit parallel prefix adder is designed and comparison is made between other previously parallel prefix adders. The result shows that the proposed 64 bit parallel prefix adder is slightly better than existing parallel prefix adders and it considerably increases the computation speed.The spice tool is used for analysis with different supply voltages.
Volume: 7
Issue: 2
Page: 115-123
Publish at: 2018-07-01

Optimal Charging Schedule Coordination of Electric Vehicles in Smart Grid

10.11591/ijeecs.v11.i1.pp82-89
Wan Iqmal Faezy Wan Zalnidzam , Hasmaini Mohamad , Nur Ashida Salim , Hazlie Mokhlis , Zuhaila Mat Yasin
The increasing penetration of electric vehicle (EV) at distribution system is expected in the near future leading to rising demand for power consumption. Large scale uncoordinated charging demand of EVs will eventually threatens the safety operation of the distribution network. Therefore, a charging strategy is needed to reduce the impact of charging. This paper proposes an optimal centralized charging schedule coordination of EV to minimize active power losses while maintaining the voltage profile at the demand side. The performance of the schedule algorithm developed using particle swarm optimization (PSO) technique is evaluated at the IEEE-33 Bus radial distribution system in a set time frame of charging period. Coordinated and uncoordinated charging schedule is then compared in terms of active power losses and voltage profile at different level of EV penetration considering 24 hours of load demand profile. Results show that the proposed coordinated charging schedule is able to achieve minimum total active power losses compared to the uncoordinated charging.
Volume: 11
Issue: 1
Page: 82-89
Publish at: 2018-07-01

Big Data Security Architecture using Split and Merge Method

10.11591/ijeecs.v11.i1.pp268-274
Archana RA , Ravindra S Hegadi , Manjunath T N
Due to rapid growth of unstructured data in contemporary information world, there is an essence of big data infrastructure for many applications spread across domains, due to the different source information type and huge volume, data ingestion and data retrieval is important activity during this process data security is a vital to protect user data, in connection with this, authors proposed a big data security architecture using split and merge security method in big data environment using hadoop.This work will help Data security professionals and organizations implementing big data projects.
Volume: 11
Issue: 1
Page: 268-274
Publish at: 2018-07-01

A Power Efficient Self Biased OTA Design Based on g_m/I_D Methodology with Considering Load Variation, Temperature Variation and Power Supply Variation

10.11591/ijres.v7.i2.pp104-114
Vikas Mittal
The present work addresses the design of power efficient fully self biased OTA using a design methodology based on the  transistor characteristics. This analog module was analyzed, designed and prototyped in TSMS 0.35μm CMOS technology. Simulation results are presented, in order to validate the methodology. The OTA has Gain of 41.35 dB and 3db bandwidth of 138.73 kHz and the UGB of 12.40MHz with the current consumption of 65.50 μA. The circuit does not have need of any DC external biasing circuit, only need to apply VDD (3.3 V). Here self biasing has been introduced with power consumption of 216.15μW. The results have been taken with load variations, temperature variations, and power supply variations. This circuit used in real time high frequency applications as in RF communication.
Volume: 7
Issue: 2
Page: 104-114
Publish at: 2018-06-30

Notice of Retraction Designing of Vedic Based Modulo Multiplication in Residue Number System

10.11591/ijres.v7.i2.pp67-73
Shamim Akhter , Divya Bareja , Satyendra Kumar
Notice of Retraction-----------------------------------------------------------------------After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IAES's Publication Principles.We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.The presenting author of this paper has the option to appeal this decision by contacting ijres@iaesjournal.com.-----------------------------------------------------------------------Residue Number System (RNS) is a very old number system which was proposed in 1500 AD. Parallel nature for mathematical operations in RNS results in faster computation. This paper deals with designing of modulo multiplication in RNS. Direct computation of |AB|m, requires multiplier to get A.B first and then Mod-m calculator to get the final result. We have used Vedic technique along with RNS to improve the computation time for modulo multiplication. This paper is aimed at designing and analysis of modulo multiplier for special moduli set like 3, 5 and 7. Comparative analysis in terms of area and delay is performed for input data size (N=8, 16 and 32-bit) between proposed technique and direct computation using Xilinx ISE 14.1. Design is also been compared using Synopsys Design Compiler with 32 nm Std_Cell Library. It is found that proposed technique is more efficient in terms of speed when input data size increases.
Volume: 7
Issue: 2
Page: 67-73
Publish at: 2018-06-30

Berger Code Based Concurrent Online Self-Testing of Embedded Processors

10.11591/ijres.v7.i2.pp74-81
G. Prasad Acharya , M. Asha Rani
In this paper, we propose an approach to detect the temporary faults induced by an environmental phenomenon called single event upset (SEU). Berger code based self-checking checkers provides an online detection of faults in digital circuits as well as in memory arrays. In this work, a concurrent Berger code based online self- testable methodology is proposed and integrated in 32-bit DLX Reduced Instruction Set Computer (RISC) processor on a single silicon chip. The proposed methodology is implemented and verified for various arithmetic and logical operations of the DLX processor. The FPGA implementation of the proposed design shows that a meager increase in hardware utilization facilitates online self- testing to detect temporary faults.
Volume: 7
Issue: 2
Page: 74-81
Publish at: 2018-06-30

FPGA Implementation of DTCWT and PCA Based Watermarking Technique

10.11591/ijres.v7.i2.pp82-90
M. S. Sudha , T. C. Thanuja
The hardware implementation of the image watermarking algorithm offers numerous distinct advantages over the software implementation in terms of low power consumption, less area usage and reliability. The advantages of Dual Tree Complex Wavelet Transform (DTCWT) and Principle Component Analysis (PCA) techniques are extracted to improve the robustness and perceptibility. The hardware watermarking solution is more economical, because adding the component only takes up a small dedicated area of silicon. The algorithm is developed and simulated using Matlab, Simulink and system generator. The implementation is carried out using Spartan 6 Diligent Atlys Field Programmable Gate array (FPGA). The architecture uses 256 slice registers, 257 slice Look Up Tables (LUT’s) and 47 I/O pins. It also meets the requirement of high speed architecture with a delay of 1.328ns and an operating frequency of 549.451MHz.
Volume: 7
Issue: 2
Page: 82-90
Publish at: 2018-06-30

Impacts of Embedded Generation on Distribution Network Behavior

10.11591/ijres.v7.i2.pp91-103
Puladasu Sudhakar , Sushama Malaji , B. Sarvesh
This paper explores the impacts of multiple embedded generators penetration on distribution system behavior. For this rationale, a IEEE-13 bus distribution feeder was modeled and investigates by assimilating different types of embedded generation (EG) sources. Different scenarios were implemented in which WIND, SOFC FUEL CELL, SOLAR and MICRO TURBINE plants were modeled with high variability of load and generation to observe their impacts on system’s protection, unsymmetrical faults also consider observing impacts effectively. To eradicate the impacts on distribution system with presence of EG’s and distribution system undergone in the event of faults, in this paper primarily reverse power due to EG integration is estimated and sensed with reverse power relay, Further two types of Superconducting Fault Current Limiters Passive resonance CB (PRCB) SFCL and Inverse current injection CB (I-CB are proposed and results are compared for amended solution in mitigating fault current magnitude and over voltages, Finally penetrations levels are computed mathematically and All the modeling and simulations were carried out using MATLAB SIMULINK tool.
Volume: 7
Issue: 2
Page: 91-103
Publish at: 2018-06-30

Harmonic Mitigation for Non-Linear Load using TSH Active Power Filter with PID Controller

10.11591/ijape.v7.i2.pp159-165
Garima Sinha , Pankaj kumar Goswami , Sudhir kr. Sharma
Electronic equipments, widely used in present living era, required to have improved power quality. When such type of equipments are connected to electric supply distribution system, they introduce non sinusoidal effect in the line current because of their non-linear relationship in voltage and current. Moreover, harmonics in the line current are also produced. With constantly growing imploration of such type of nonlinear equipments at a large scale, harmonic distortions in line current have become a significant crunch. This required some methods involving the reduction of harmonics in the line current as well as Power Factor Improvement/Correction. The primary goal of this proposed work is to reduce the harmonics produced in line current and to improve power quality of non-linear load by designing a converter with parallel processing scheme, named TSH Active power filter (Transformer less shunt active power filter) with PID controller. Here a separate dc source is employed to supply the shunt connected converter, a voltage source inverter, to remove the requirement of bulky transformer at supply end. This paper depicted the process of reduction of total harmonic distortion (THD), generated due to nonlinear characteristics of load and power factor improvement by shunt compensation. The proposed designs are modeled and simukated using Matlab simulation software.
Volume: 7
Issue: 2
Page: 159-165
Publish at: 2018-06-06

Micro Hydropower System Design for Gua Kelam Electricity Supply

10.11591/ijape.v7.i2.pp120-128
Mamoud A. M. Albreem , Rosnita Md Aspan
Sufficient and uninterrupted electricity supply is one of the main factors to develop the country. Today, electricity can be generated using a variety of sources, whether from non-renewable sources as well as renewable resources. To generate electrical power, Malaysia can't rely entirely on non-renewable resources such as petroleum and coal as these are finite resources which are experiencing depletion around the world. Electricity generated from renewable sources such as water, particularly from micro hydropower systems is considered the cheapest and most environmentally friendly source of electrical energy. Based on the reconnaissance study conducted, the streams of flowing water in Gua Kelam have the potential to yield about 34.29 kW of electricity power, based on the head height of 27 m and flow rate 0.216 m3/s. In this paper, a model for an ordinary micro hydropower facility has been proposed. It links various electromechanical equipment consisting of a hydraulic turbine governor, and a synchronous generator. The modeling was executed to design a micro hydropower system as an alternative source of supply of electricity to Gua Kelam, Perlis. The proposed model was tested by placing a three-phase fault to earth for the purpose of testing the reliability of the system. With the selection of an appropriate control system, the proposed model is very suitable for the development of micro hydropower system at a potential site such as Gua Kelam.
Volume: 7
Issue: 2
Page: 120-128
Publish at: 2018-06-06

Analysis of Six-Phase Interior Permanent Magnet Synchronous Machines for Optimal Parameter Considerations

10.11591/ijape.v7.i2.pp139-146
Tanmoy Dey , Amit Kumar Chowdhury , Sk Mehboob Alam , Surajit Mondal
Understanding the merits of six-phase interior permanent magnet synchronous machines (IP-MSMs) over their three-phase counterparts, this paper analyses the six-phase machine for optimal parameter and performance considerations. Initially, a mathematical model of the six-phase IPMSM is developed employing the dq-axis theory and performance predicted by the model is verified under identical operating conditions with those using a machine designed and tested through finite element analysis (FEA). The developed and verified machine model is then employed to exclusively derive the relation between various machine parameters in order to obtain optimum flux weakening region in the six-phase IPMSM. Thereafter, the equations derived on the basis of maximum torque per ampere (MTPA) control theory are analyzed to understand the effect of various parameters and variables in influencing the machine’s performance in the ‘constant torque’ region and ‘constant power’ region, power output capability, a ratio of reluctance torque to magnet-assisted torque with changes in the stator current vector etc. This is the contribution of this paper.
Volume: 7
Issue: 2
Page: 139-146
Publish at: 2018-06-06

An Enhanced Control Strategy for the Stable Operation of Distributed Generation during Grid-Connected and Islanded Mode

10.11591/ijape.v7.i2.pp147-158
Suman Khichar , Yatindra Gopal , Mahendra Lalwani
The incident of islanding occurs while the distributed generator fed constant power into the grid after power flow on the source of essential utility has been intermittent. If islanding is not rapidly detected, it can reason serious security and harmful condition.  This paper presents coordinated manage of solar photovoltaic unit through maximum power point tracking technique to make available voltage and frequency support for an islanding condition. In normal condition, structure works as constant current control mode subsequent to islanding the structure switched to voltage control mode. The projected technique is capable to discriminate involving an islanding and a non-islanding occurrence. In this paper phase locked loop detection technique designed for detecting islanding situation is conceded out. The authentication of proposed system is established efficiently using MATLAB/ Simulink environment. The simulated results exhibit that the islanding detection technique has zero nondetection zone property and be able to detect islanding within few seconds
Volume: 7
Issue: 2
Page: 147-158
Publish at: 2018-06-06

Music Emotion Classification based on Lyrics-Audio using Corpus based Emotion

10.11591/ijece.v8i3.pp1720-1730
Fika Hastarita Rachman , Riyanarto Sarno , Chastine Fatichah
Music has lyrics and audio. That’s components can be a feature for music emotion classification. Lyric features were extracted from text data and audio features were extracted from audio signal data.In the classification of emotions, emotion corpus is required for lyrical feature extraction. Corpus Based Emotion (CBE) succeed to increase the value of F-Measure for emotion classification on text documents. The music document has an unstructured format compared with the article text document. So it requires good preprocessing and conversion process before classification process. We used MIREX Dataset for this research. Psycholinguistic and stylistic features were used as lyrics features. Psycholinguistic feature was a feature that related to the category of emotion. In this research, CBE used to support the extraction process of psycholinguistic feature. Stylistic features related with usage of unique words in the lyrics, e.g. ‘ooh’, ‘ah’, ‘yeah’, etc. Energy, temporal and spectrum features were extracted for audio features.The best test result for music emotion classification was the application of Random Forest methods for lyrics and audio features. The value of F-measure was 56.8%.
Volume: 8
Issue: 3
Page: 1720-1730
Publish at: 2018-06-01
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