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29,905 Article Results

Multi objective Adaptive Tumbling Bacterial Foraging in VAR Solutions for Sustainable Power System Operation

10.11591/ijeecs.v11.i1.pp129-136
E. E. Hassan , T. K. A. Rahman , Z. Zakaria , N. Bahaman , M. H. Jifri
The application of the developed optimization technique Multi Objective Adaptive Tumbling Bacterial Foraging (MOATBFO) was introduced to solve the multi objective Reactive Power Planning (RPP) problems. The objective of conventional RPP problems is to minimize the total power losses in a system. However, in this study, the aspect of security was also taken into consideration in terms of voltage stability condition in solving RPP problems. Hence, the RPP problem is now termed as security constrained RPP (SCRPP) and generalized into a multi objective function via weighted sum method that labeled as MOSCRPP. The best minimum voltage solution for the network is aimed in ensuring the sustainable power system operation.  In order to verify the performance of the proposed technique were used for MOSCRPP in the IEEE 57 bus system thus the comprehensive analyses were also conducted with other multi objective Meta heuristic Evolutionary Programming (Meta-EP). From the results it shows that the multi objective ATBFO optimization is able to give better overall improvement in the objective functions for SCRPP problems.
Volume: 11
Issue: 1
Page: 129-136
Publish at: 2018-07-01

Black Phosphorus Saturable Absorber for Pulse Generation Using Q-switched Teachnique

10.11591/ijeecs.v11.i1.pp36-40
Belal Ahmed Hamida , L A Hussein , Sheroz Khan , Mohamed Hadi Habaebi , Ahmad Anwar Zainuddin , T Eltaif , S W Harun
This paper reported a passive Q-switched erbium doped fiber laser (EDFL) using two-dimensional (2D) material of black phosphorus saturable absorber (BP-SA). The maximum output power reached is 3.54 mW, which is generated by pump power of 42.327 mW. The results show that a stable pulse was generated with repetition rate starts at about 9.606 kHz and ends at about 44.72 kHz and very narrow pulse width between 40.01 µs and 9.84 µs and pulse energy 80 nJ. Clearly, the stability of the Q-switched pulse train was achieved because the BP-SA film was inserted in the laser ring cavity.
Volume: 11
Issue: 1
Page: 36-40
Publish at: 2018-07-01

Microclimate control of a greenhouse by adaptive Generalized Linear Quadratic strategy

10.11591/ijeecs.v11.i1.pp377-385
Mohamed Essahafi , Mustapha Ait Lafkih
To highlight the conceptual aspects related to the implementation of techniques optimal control in the form state, we present in this paper, the identification and control of the temperature and humidity of the air inside a greenhouse. Using respectively an online identification based on the recursive least squares with forgotten Factor method and the multivariable adaptive linear quadratic Gaussian approach which the advanced technique (LQG) is presented.  The design of this controller parameters is based on state models identified directly from measured greenhouse data. hence the performances of the controller developed are illustrated by different tests and simulations on identified models of a greenhouse. Discussions on the results obtained are then processed in the paper to show the effectiveness of the controller in terms of stability and optimization of the cost of control.
Volume: 11
Issue: 1
Page: 377-385
Publish at: 2018-07-01

Microwave Planar Sensor for Permittivity Determination of Dielectric Materials

10.11591/ijeecs.v11.i1.pp362-371
Rammah Alahnomi , Natasha Binti Abd Hamid , Zahriladha Zakaria , Tole Sutikno , Amyrul Azuan Mohd Bahar
This paper presents a single port rectangular ring resonator sensor for material characterizations. The proposed sensor is designed at operating resonance frequency of 4 GHz. The sensor consists of micro-strip transmission line and ring resonator with applying the enhancement method to the coupling gaps. The using of enhancement method is to improve the return loss of the sensor and sensitivity in terms of Q-factor, respectively. Furthermore, the proposed sensor is designed and fabricated on Roger 5880 substrate. Standard materials with known permittivity have been used in order to validate the sensor’s sensitivity. Based on the results, the percentage of error for the proposed rectangular sensor is 0.2% to 8%. It can be demonstrated that the proposed sensor will be useful for various applications such as medicine, bio-sensing and food industry.
Volume: 11
Issue: 1
Page: 362-371
Publish at: 2018-07-01

Daily Harvested Energy of Cadmium Telluride Thin Film Photovoltaic

10.11591/ijeecs.v11.i1.pp18-26
Yasmeen H. Sabri , W. Z. Wan. Hasan , S. Shafie , M. A. M. Radzi , A. H. Sabry
The power generated by solar photovoltaic (PV) is highly affected by the weather environment. Thin-Film solar module of cadmium telluride (CdTe) is one of the Semi-transparent PV (STPV) that can be employed in a wide application range as a means to sunlight permeability while supplying solar electrical energy with some shading which also preferable in hot areas. The system behavior and the forecast of a STPV harvested energy requires an accurate and reliable discribtion for the power pattern rate during the day time. This research presents a real-time daily measurements for CdTe PV modules that serve the system design, prediction, and modeling. Multilayer and single installation categories are configured to be experimentally tested at different weather conditions (temperature and irradiance). The measurements were conducted at UPM University, Serdang, Malaysia, where a 6 different modules are expreinced. A wireless monitoring system with high sampling frequency employed for this purose. The results show an efficiency of 2.51 as a maximum  in cloudy day conditions, while the harvested daily energy show that a multi-layer configuration may only be effective when the transparency is high. This new generation of PV module is similar to that for Silicon-based PV but it has threshold value to start power generating and promises for efficient sustainable building materials
Volume: 11
Issue: 1
Page: 18-26
Publish at: 2018-07-01

Gbest Artificial Bee Colony for Non-convex Optimal Economic Dispatch in Power Generation

10.11591/ijeecs.v11.i1.pp187-194
M. N. Abdullah , A. F. A. Manan , J. J. Jamian , S. A. Jumaat , N. H. Radzi
Non-convex Optimal Economic Dispatch (OED) problem is a complex optimization problem in power system operation that must be optimized economically to meet the power demand and system constraints. The non-convex OED is due to the generator characteristic such as prohibited operation zones, valve point effects (VPE) or multiple fuel options. This paper proposes a Gbest Artificial Bee Colony (GABC) algorithm based on global best particle (gbest) guided of Particle Swarm Optimization (PSO) in Artificial bee colony (ABC) algorithm for solving non-convex OED with VPE. In order to investigate the effectiveness and performance of GABC algorithm, the IEEE 14-bus 5 unit generators and IEEE 30-bus 6 unit generators test systems are considered. The comparison of optimal solution, convergence characteristic and robustness are also highlighted to reveal the advantages of GABC. Moreover, the optimal results obtained by proposed GABC are compared with other reported results of meta-heuristic algorithms. It found that the GABC capable to obtain lowest cost as compared to others. Thus, it has great potential to be implemented in  different types of power system optimization problem.
Volume: 11
Issue: 1
Page: 187-194
Publish at: 2018-07-01

Real Time Detection of R – Peak in QRS Complex of ECG using Microcontroller

10.11591/ijeecs.v11.i1.pp372-376
Santipriya N , Venkateswara Rao M , Arun V , R Karthik
Real-time detection of R peaks in QRS complex of ECG signal is the first step in the processing of ECG waveform. Based on this, various other ECG parameters can be extracted. These parameters provide substantial information about various heart diseases. In this paper, we are proposing a method to detect R – peaks of ECG signal dynamically. The most prominent role in the R – peak detector is executed by the microcontroller. This method originates by acquiring signal from the subject and necessary pre-processing is carried out on the signal in order to achieve the denoised signal. Subsequently, this filtered signal is handed over to microcontroller where a pulse is generated for each R – peak that is found in the QRS complex of ECG signal. The microcontroller is embedded with a signal processing algorithm. The algorithm used to determine the R – peaks is double differentiation method which is straightforward and robust.  
Volume: 11
Issue: 1
Page: 372-376
Publish at: 2018-07-01

Recognizing Foreign Object Debris (FOD): False Alarm Reduction Implementation

10.11591/ijeecs.v11.i1.pp41-46
Talha Khan , Muhammad Alam , Kushairy Kadir , Zeeshan Shahid , MS. Mazliham , Sheroz Khan , Mohammad Miqdad
Recognition of foreign object debris (FOD) on ruwanys is mandatory to avert the accidents and emergency. The accurate and precise estimation of FOD is very complex because of the intricated shape and their different tiny sizes as well which are noe easily visilble. For the prompt removal of the FOD from the runways a robust, accurate and precise system is badly needed. Therefore, in our research we have proposed a vigor system comprised of ultrasonic sensor and infrared images capturing device with a combination of fake alerts reduction algorithm based on infrared images distribution and morphological edge identification. After the segmentation and morphological processing, the decision a unifying divider was designed to identify the actual targets. Several approaches have been done for the detailed and rapid investigation of FOD. Testing and validation have proved that our proposed research performed well compared to the other techniques. In this research ultrasonic sensors results are integrated with the processed infrared images.
Volume: 11
Issue: 1
Page: 41-46
Publish at: 2018-07-01

Modeling of 120W Monocrystalline Photovoltaic Module using MATLAB Simulink

10.11591/ijeecs.v11.i1.pp74-81
Siti Amely Jumaat , Adhwa Amsyar Syazwan Ab Majid , Mohd Noor Abdullah , Nur Hanis Radzi , Rohaiza Hamdan , Suriana Salimin
This project aims to model a solar Photovoltaic (PV) Module using MATLAB Simulink. In Renewable Energy (RE) field, many studies have been carried out to determine the level of efficiency and performance of a specific PV module. Therefore, this research will carry out the modeling of the 120W Monocrystalline Photovoltaic Module by Su-Kam Solar using MATLAB Simulink to determine the efficiency and performance. The input parameters that consists of Solar Irradiance (G) and Temperature (T) data will be collected at location 1.8635° N, 103.1089° E which is in Parit Raja, Batu Pahat, Johor. The results are shown in I-V curve and P-V curve and compared with the theory of I-V and P-V curve. Other than that, the PV module have different performance in different value of irradiance and temperature. Lastly, the PV Module is work efficiently and full performance at Standard Test Conditon (STC).
Volume: 11
Issue: 1
Page: 74-81
Publish at: 2018-07-01

Advanced Active Power Filter Performance for Grid Integrated Hybrid Renewable Power Generation Systems

10.11591/ijeecs.v11.i1.pp60-73
S. Guru Prasad , K S Srikanth , B V Rajanna
An active power filter implemented with a four leg voltage-source inverter using a predictive control scheme is presented. The use of a four leg voltage-source inverter allows the compensation of current harmonic components, as well as unbalanced current generated by single-phase nonlinear loads. A detailed yet simple mathematical model of the active power filter, including the effect of the equivalent power system impedance, is derived and used to design the predictive control algorithm. The compensation performance of the proposed active power filter and the associated control scheme under steady state and transient operating conditions is demonstrated through simulations and experimental results.
Volume: 11
Issue: 1
Page: 60-73
Publish at: 2018-07-01

Intelligent Lighting Control System for Energy Savings in Office Building

10.11591/ijeecs.v11.i1.pp195-202
Khairul Rijal Wagiman , Mohd Noor Abdullah
Lighting system is a crucial sub-system and consumes substantial electricity energy in the buildings. This paper proposes an intelligent lighting control system using artificial neural network (ANN). The minimization of dimming levels of luminaires has been considered as an objective function of the controller. Moreover, the light sensor field of view is also taken into consideration in objective function formulation. The proposed ANN controller has been tested on an actual office room of the Department of Mechanical Technology, Institute of Industrial Training, Selandar, Melaka, Malaysia. The simulation has been carried out using DIALux simulation lighting software. Based on the results, the proposed controller showed great performance in terms of adaptive less light sensor data and achieving dimming levels target that complies the European Standard EN12464-1. Furthermore, it can save energy up to 34%.Lighting system is a crucial sub-system and consumes substantial electricity energy in the buildings. This paper proposes an intelligent lighting control system using artificial neural network (ANN). The minimization of dimming levels of luminaires has been considered as an objective function of the controller. Moreover, the light sensor field of view is also taken into consideration in objective function formulation. The proposed ANN controller has been tested on an actual office room of the Department of Mechanical Technology, Institute of Industrial Training, Selandar, Melaka, Malaysia. The simulation has been carried out using DIALux simulation lighting software. Based on the results, the proposed controller showed great performance in terms of adaptive less light sensor data and achieving dimming levels target that complies the European Standard EN12464-1. Furthermore, it can save energy up to 34%.
Volume: 11
Issue: 1
Page: 195-202
Publish at: 2018-07-01

Wireless Environment Aware Adaptive Scheduling Technique For Cellular Networks

10.11591/ijeecs.v11.i1.pp318-332
Anand Reddy , Jitendranath Mungara
It is now well known that employing channel knowledge based on signaling techniques in wireless mobile ad-hoc networks (MANET) system can yield large improvements in almost all performance metric. Here we proposed the adaptive scheduling, in which the work done is based upon the bandwidth information of channel to provide better quality of service (‘QoS’) to the cell-edge mobile stations. Channel information is critical based on which scheduling is carried out. The bandwidth channel information contains estimation delay, the pilot channel noise and pilot contamination. Afterwards, Zero Forcing precoding methodology has applied for removing the interference at user nodes, destination nodes and gateway side. By extending the characteristics of ZF, the modified Zero Forcing (MZF) has proposed to achieve higher throughput rate and higher spectrum efficiency. The achievable-rates of the ZF and MZF has derived under the comprehensive model of imperfect bandwidth information.
Volume: 11
Issue: 1
Page: 318-332
Publish at: 2018-07-01

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

Sustainable Environmental Economic Dispatch Optimization with Hybrid Metaheuristic Modification

10.11591/ijeecs.v11.i1.pp161-168
M. R. M. Ridzuan , E. E. Hassan , A. R. Abdullah , A. F. A. Kadir
Today’s Economic Dispatch (ED) solutions are featured with environmental obligations. Hence, the significant objective functions contribute to cost minimization, lower emission and less total system losses. As an alternative, New Meta Heuristic Evolutionary Programming (NMEP) technique was proposed to optimize the individual ED problem categorized as Single Objective Environmental Economic Dispatch (SOEELD), developed from an integration of original Meta Heuristic Evolutionary Programming (Meta-EP) with Artificial Immune System (AIS) with new arrangement in the mutation and cloning processes. The comparative analysis was conducted between the original Meta-EP and classical method of Hadi Saadat to verify the performance of NMEP method. Each particular objective function identified the best possible outcomes through the NMEP method. The simulations were conducted using MATLAB programming which tested both standard IEEE 26 and 57 bus systems.
Volume: 11
Issue: 1
Page: 161-168
Publish at: 2018-07-01

Evolution of Learning Environment: A Review of Ubiquitous Learning Paradigm Characteristics

10.11591/ijeecs.v11.i1.pp175-181
Zurainee Mohd Tahir , Haryani Haron , Jasber Kaur Gian Singh
This paper performed literature analysis for evolution of learning environment focusing on a new learning paradigm which is known as ubiquitous learning environment. This paper also intend at providing specific information about ubiquitous learning concepts and the criteria that needed in the future research.  It begins by briefly describing the evolution of learning environment with the comparison for each of the learning paradigms. Finally, the definition of ubiquitous learning and the comparison of characteristics in ubiquitous learning paradigm are also compared and discussed to further enhance the understanding of ubiquitous learning concept. As a conclusion these paper providing a basis foundation for novice researcher that interested in exploring ubiquitous learning environment area.
Volume: 11
Issue: 1
Page: 175-181
Publish at: 2018-07-01
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