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29,287 Article Results

Investigation of Solar Panel Performance Based on Different Wind Velocity Using ANSYS Software

10.11591/ijeecs.v1.i3.pp456-463
Leow Wai Zhe , Mohd. Irwan Bin Yusoff , Muhammad Irwanto Misrun , Amelia Binti Abdul Razak , Safwati Ibrahim , Nur Syafiqah Binti Zhubir
 The low conversion energy efficiency of solar panel is affected by the several environmental issues. Solar radiation, ambient temperature, dust accumulation and wind velocity are the environmental problems. This main goal of this paper is to understanding the solar panel behavior under varying of wind velocity amounts. A three-dimension (3-D) model of solar panel is conducted in the present investigation. The solar panel model is simulated under given operating condition and different amounts of wind velocity. Four different of wind velocity value of 0 m/s, 0.43 m/s, 2.5 m/s and 6.95 m/s was selected to examine the solar panel performance. The simulation results are obtained with ANSYS simulation software. The temperature distribution of the solar panel model will be discussed in this current paper. The simulation result is showed highest wind velocity can be provided good cooling effect for the solar panel model in order to enable the solar panel can be operated to perform well at lower temperature.
Volume: 1
Issue: 3
Page: 456-463
Publish at: 2016-03-01

Real-Time Automatic Obstacle Detection and Alert System for Driver Assistance on Indian Roads

10.11591/ijeecs.v1.i3.pp635-646
Sachin Sharma , Dharmesh Shah
Road crashes have been a major problem in India in recent times. The occurrences have increased considerably owing to the influx of four-wheelers and two-wheelers. The interior roads connecting villages and towns have been instrumental in multiple animal-vehicle collisions. Although the figure is not too large compared to other causes of road-related injuries, they are significant in number. Though numerous efforts have been in progress to solve and reduce the number of collisions, lack of practical applications and resources along with quality analytical data (for training and testing) related to animal-vehicle collision has impeded any major breakthrough in the scenario. In our current work, we have proposed and designed a system based on histogram research including oriented gradients and boosted cascade classifiers for automatic cow detection. The method is implemented in Opencv software and tested on various video clips involving cow movements in various scenarios. The proposed system has achieved an overall efficiency of 80% in terms of cow detection. The proposed system is a low-cost, highly reliable system which can easily be implemented in automobiles for detection of cow or any other animal after proper training and testing on the highway.
Volume: 1
Issue: 3
Page: 635-646
Publish at: 2016-03-01

A comparative Study on Similarity Measurement in Noisy Voice Speaker Identification

10.11591/ijeecs.v1.i3.pp590-596
Inggih Permana
One of important part on speaker identification is the measurement of sound similarity. This study has compared two of the similarity measurement techniques in the noisy voice. First technique is done by using smallest vector sum of pairs and second technique is done by using frequency of occurrence of smallest vector pairs. Noise in the voice can reduce accuracy of speaker identification significantly. To overcome this problem, the two of similarity measurement was combined with Least Mean Square (LMS) for remove noise. Results of the experiments showed that the use of LMS can improve the accuracy of speaker identification at the two of similarity measurement techniques. Second technique produces better accuracy than first technique. Experimental result also showed improvement of LMS learning rate can improve the accuracy of speaker identification.
Volume: 1
Issue: 3
Page: 590-596
Publish at: 2016-03-01

Analysis of AC-AC Converter Based Dynamic Voltage Restorer for Maintaining Power Quality in the Transmission Line

10.11591/ijeecs.v1.i3.pp501-511
Tamilvanan G. , Mahendran S.
In the power system the major issue is to maintain the power quality .The term of power quality is to maintain the disturbance less voltage to the power system. The voltage disturbance mainly caused by voltage sag, voltage swell and harmonics presented in the system. If the system voltage is going below to the nominal voltage, then it is called as voltage sag. These power quality (PQ) events typically last for less than one second. If the system voltage is going above the nominal voltage, there it is called as voltage swell. The AC-AC converter based DVR is proposed. It can properly compensate for unlimited time duration, balanced, and as well as unbalanced voltage sag by observing the power from the grid. The pulse width modulation technique is used to triggering the switches. Only by the simple Bidirectional switches were used for generate the compensation voltage.
Volume: 1
Issue: 3
Page: 501-511
Publish at: 2016-03-01

Advanced Optimal for Power-Electronic Systems for the Grid Integration of Energy Sources

10.11591/ijeecs.v1.i3.pp543-555
Salam Waley Shneen
Renewable and clean energies like a photovoltaic (PV) energy and wind energy (WE), they can contribute in decreasing the electric energy cost. Energy storage is necessary in PV and WE hybrid system with the variable nature. A hybrid system (PV, WE and diesel), it uses the aim of minimizing the total cost and ensuring the energy available. In this paper, the modeling and cost analysis of a hybrid system (PV, WE and diesel) considering three types systems: First, diesel with a hybrid system. Second, diesel and battery with a hybrid system. Third, grid, battery and hybrid system. In comparison to all types, for cost analysis, a mathematical model have introduced for each type. There are two parts of this work. First by Homer software, it has been used to find the system feasibility and conduct the economic analysis. Second by Matlab simulation, this paper includes status of grid integration in one day through twenty four. The power generation by wind turbine, the change of wind speed which effect on values of power generation. The power generation by solar cell, the change of temperature and radiation which effect in values of power generation.
Volume: 1
Issue: 3
Page: 543-555
Publish at: 2016-03-01

Design front rake angle of PDC bit based on SolidWorks simulation method

10.11591/ijeecs.v1.i3.pp627-634
Xiaoming HAN , Chenxu LUO , Xingyu HAN
In order to solve the bit front rake angle parameter selection problem of under different coal rock, it is proposed in polycrystalline diamond compact no core bit as the research object, and established a bit compact two-dimensional stress model of cutting teeth. The result shows that the front rake angle is the factor of cutting force and the drilling efficiency. Application of SolidWorks simulation carries out the finite element simulation analysis respectively to different front rake angle of bit model under the condition of soft rock and hard rock. Form the simulation it concludes that under the condition of soft rock and hard rock, the optimal front rake angle is 10° and 15° respectively. It is obtained that the strength of the bit is largest and the life is longest on the best front rake angle of bit.
Volume: 1
Issue: 3
Page: 627-634
Publish at: 2016-03-01

Optimization of Wireless Internet Pricing Scheme in Serving Multi QoS Network Using Various Attributes

10.12928/telkomnika.v14i1.2256
Irmeilyana; Universitas Sriwijaya Irmeilyana , Fitri Maya; Universitas Sriwijaya Puspita , Iffah; Universitas Sriwijaya Husniah
Pricing scheme in wireless networks were developed to provide maximum benefit to the internet service provider (ISP), where the given scheme can guarantee customer satisfaction and service providers who use such services. So that the proposed model should be able to attract consumer interest in applying such services. In this research we established wireless pricing model that involve QoS attributes then the model will be transformed into a model of optimization. Pricing models in wireless networks will be studied by looking at existing models as a nonlinear programming problem that can be solved optimally using LINGO 11.0. The solution is to maximize the total price for the connection based on the QoS parameters. Optimal results in the maximizing of pricing scheme is achieved when providers set the increase of price changes due to QoS changes and number of QoS value.
Volume: 14
Issue: 1
Page: 273-279
Publish at: 2016-03-01

Power System Design using Firefly Algorithm for Dynamic Stability Enhancement

10.11591/ijeecs.v1.i3.pp446-455
Herlambang Setiadi , Karl O Jones
Utilising additional devices in power systems have been developed by industry. Devices such as a Power System Stabilizer (PSS) and a Superconducting Magnetic Energy Storage (SMES) are commonly employed in industry. This work investigated the coordination of a PSS and SMES applied to a power system to enhance dynamic stability. To obtain optimal coordination, the parameters of the PSS and SMES are tuned using the Firefly Algorithm (FA). The simulation of the power system, PSS, and SMES has been performed using MATLAB and Simulink, and the FA run in Matlab. For testing the small signal stability, the eigenvalue of the system will be investigated, while for dynamic stability the system will be given an external disturbance. The rotor angle and frequency deviation of the power system are compared without a controller, with a PSS and SMES included, and with the PSS and SMES tuned by FA. The simulation results show that the proposed system can improve not only small signal stability (steady state stability) but also dynamic stability.
Volume: 1
Issue: 3
Page: 446-455
Publish at: 2016-03-01

Hybridizing PSO With SA for Optimizing SVR Applied to Software Effort Estimation

10.12928/telkomnika.v14i1.2812
Dinda; Brawijaya University Novitasari , Imam; Brawijaya University Cholissodin , Wayan Firdaus; Brawijaya University Mahmudy
This study investigates Particle Swarm Optimization (PSO) hybridization with Simulated Annealing (SA) to optimize Support Vector Machine (SVR). The optimized SVR is used for software effort estimation. The optimization of SVR consists of two sub-problems that must be solved simultaneously; the first is input feature selection that influences method accuracy and computing time. The next sub-problem is finding optimal SVR parameter that each parameter gives significant impact to method performance. To deal with a huge number of candidate solutions of the problems, a powerful approach is required. The proposed approach takes advantages of good solution quality from PSO and SA. We introduce SA based acceptance rule to accept new position in PSO. The SA parameter selection is introduced to improve the quality as stochastic algorithm is sensitive to its parameter. The comparative works have been between PSO in quality of solution and computing time. According to the results, the proposed model outperforms PSO SVR in quality of solution
Volume: 14
Issue: 1
Page: 245-253
Publish at: 2016-03-01

Performance Evaluation of DCF Length for High Scalability NG-PON2

10.12928/telkomnika.v15i1.3660
Brian; Telkom University Pamukti , Doan; Telkom University Perdana
Next Generation Passive Optical Network Stage 2 (NG-PON2) have to resolve the problem like demand each user, for example, HDTV, 3DTV, Hologram and Telemedicine. The research designed Passive Optical Network (PON), which is meet requirements of NG-PON2. Using stacked 4 Optical Line Terminal (OLT) with an aggregate 40 Gbps transmitted on fiber Single Mode Fiber (SMF) and Dispersion Compensation Fiber (DCF) by comparing the system without DCF cable. On the condition of minimum standards, the range of 40 km with a power splitter 1:64 only 9:01% power difference while the increased in the Q factor of 65.5%. With these results, it can be said that systems using DCF can be used optimally. In addition, with the power splitter 1: 4 and a lower power worth 0 dBm can produce a range of 150% further. With the same distance as far as 40 km, this research increasing power splitter 6 times increase compared with previous research.
Volume: 15
Issue: 1
Page: 165-171
Publish at: 2016-03-01

A New Method of Reference Signals Calculation for Switching Compensator

10.12928/telkomnika.v14i1.2435
Yiying; China University of Mining & Technology Wang , Jiangong; China University of Mining & Technology Liu , Yang; China University of Mining & Technology Liu
This paper is under in-depth investigation due to suspicion of possible plagiarism on a high similarity indexThe switching compensation devices, such as active power filters and static var generator, are growing rapidly for power quality improvement. The current reference signals is one of the important factor affecting the responsible speed and compensation effect. In this paper, a new strategy for reference signals calculation is present based on Current’s Physical Components. Through the orthogonal decomposition of the load current by the CPC power theory, the reference current, for various compensation objectives of switching compensation devices, can be calculated by the combination of the orthogonal current components. It is demonstrated that this strategy can be used for various compensation goals of limited switching compensation devices and changing the compensation objectives on-line according to the power grids. The validity of the developed strategy is verified by the simulation results.
Volume: 14
Issue: 1
Page: 39-46
Publish at: 2016-03-01

Robust Localization Algorithm Based on Best Length Optimization for Wireless Sensor Networks

10.12928/telkomnika.v14i1.1731
Hua; Shandong Jiaotong University Wu , Guangyuan; Shandong Jiaotong University Zhang , Yang; Shandong Jiaotong University Liu , Yang; Shandong Jiaotong University Liu , Xiaoming; Shandong Jiaotong University Wu , Bo; Shandong Jiaotong University Zhang
In this paper, a robust range-free localization algorithm by realizing best hop length optimization is proposed for node localization problem in wireless sensor networks (WSNs). This algorithm is derived from classic DV-Hop method but the critical hop length between any relay nodes is accurately computed and refined in space WSNs with arbitrary network connectivity. In case of network parameters hop length between nodes can be derived without complicated computation and further optimized using Kalman filtering in which guarantees robustness even in complicated environment with random node communication range. Especially sensor fusion techniques used has well gained robustness, accuracy, scalability, and power efficiency even without accurate distance or angle measurement which is more suitable in nonlinear conditions and power limited WSNs environment. Simulation results indicate it gained high accuracy compared with DV-Hop and Centroid methods in random communication range conditions which proves it gives characteristic of high robustness. Also it needs relatively little computation time which possesses high efficiency. It can well solve localization problem with many unknown nosed in the network and results prove the theoretical analysis.
Volume: 14
Issue: 1
Page: 211-218
Publish at: 2016-03-01

Design of a New Telescope Control System for Use in Astronomical Transient Events

10.12928/telkomnika.v14i1.2676
Selcuk; Akdeniz University Helhel , Murat; TUBITAK National Observatory Dindar , Ekrem; TUBITAK National Observatory Kandemir , Saniye; TUBITAK National Observatory Dindar , Tuncay; TUBITAK National Observatory Ozisik
Robotic autonomous telescopes provide highlevel control by selecting astronomical targets for observation, and they usually run under the control of a scheduler. TalonVIEW is a newly designed robotic autonomous telescope control system (TCS) for 16 inches telescope mount for use in astronomical transient events. The telescope control algorithm was implemented in PXI chassis written in GProgramming (LabVIEW) on realtime operating system(PharLab) from scratch. A new TCP/IP library was also implemented in Talon software to communicate with Pharlab in PXI chassis. Initial setup without any permanent pier and polar alignment showed that the pointing error of the telescope has been obtained as 2.22 arcminutes (132 arcseconds) in RA axis (horizontal axis of the image) and 25 arcseconds in Dec axis (vertical axis of the image), and tracking error has been observed as 4.8 arcseconds per second.
Volume: 14
Issue: 1
Page: 156-161
Publish at: 2016-03-01

A Contention-Based Routing Protocol for VANET

10.12928/telkomnika.v14i1.2743
Deling; Southwest Jiaotong University Huang , Yusong; Southwest Jiaotong University Yan
In VANETs, vehicles as nodes are self-organized and inter-communicated without centralized authority. The topology formed by vehicles changes quickly, which makes routing become instability. Position-based routing, compared with traditional routing, is more scalable and feasible. Thus it has been proven stabler for VANETs than conventional routing. However, the frequently changed topology and nodes density could break the path a packet is following. Thus designing a robust multi-hop routing in VANET is challenging. This paper proposes an enhanced position-based routing protocol called CBGR, which takes into account the velocity and direction of vehicles in VANET. Simulation results show that CBGR achieves a high level of routing performance in terms of hop counts, network latency and packet delivery ratio both in dense or sparse vehicular ad-hoc networks.
Volume: 14
Issue: 1
Page: 319-325
Publish at: 2016-03-01

Belief-Rule-Based Intelligent Decision System to Select Hospital Location

10.11591/ijeecs.v1.i3.pp607-618
Md. Mahbubul Islam , Tanjim Mahmud , Mohammad Shahadat Hossain
The general public’s demand of Bangladesh for safe health is rising promptly with the improvement of the living standard.  However, the allocation of limited and unbalanced medical resources is deteriorating the assurance of safe health of the people. Therefore, the new hospital construction with rational allocation of resources is imminent and significant. The site selection for hospital is one of the crucial policy-related decisions taken by planners and policy makers. The process of hospital site selection is inherently complicated because of this involves many factors to be measured and evaluated. These factors are expressed both in objective and subjective ways where as a hierarchical relationship exists among the factors. In addition, it is difficult to measure qualitative factors in a quantitative way, resulting incompleteness in data and hence, uncertainty. Besides it is essential to address the subject of uncertainty by using apt methodology; otherwise, the decision to choose a suitable site will become inapt. Therefore, this paper demonstrates the application of a novel method named belief rule-based inference methodology-RIMER base intelligent decision system(IDS), which is capable of addressing suitable site for hospital by taking account of large number of criteria, where there exist factors of  both subjective and objective nature. 
Volume: 1
Issue: 3
Page: 607-618
Publish at: 2016-03-01
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