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25,002 Article Results

Simulation of a Transient Fault Controller for a Grid Connected Wind Farm with Different Types of Generators

https://ijpeds.iaescore.com/index.php/IJPEDS/article/view/4877
Helmy Mohammed Abdel-Mageed , S.M. Sharaf , S.M. El_masry , M. El_harony
This paper aims to simulate a wind farm model that includes wind turbine and three different  types of generators , which are three-phase synchronous generator, three-phase squirrel-cage induction generator and three-phase doubly-fed induction generator ,these generators are the main machines that generally used in the field of wind energy generation. All generators are connected in parallel at the point of common coupling (PCC) and connected to the utility grid.  This model is a simple representation of the actual model of  Zafarana,  which is the biggest wind farm in Egypt and further to use it in different kinds of simulations, and display the difference in response among all generators with the same power rating (500 kW) and subjected to the same operating conditions and faults. This paper describes the simulation of the different faults that occur along the transmission line of the power system such as single-line fault, line to line fault, double lines to ground fault, and finally three line faults. The response of the wind turbine and the different generators will be analyzed and discussed to compare the transient response of all generators at the different types of faults, where the fault period is selected to be 300 ms. The model is created in MATLAB software that enables the dynamic and static simulations of electric, electromagnetic and electromechanical systems. The machines are standard blocks in the software library.Keywords: transient faults, wind farm, simulation model.DOI: http://dx.doi.org/10.11591/ijpeds.v1i2.104
Volume: 1
Issue: 2
Page: 179-189
Publish at: 2011-10-29

Simulation of the Different Transmission Line Faults for a Grid Connected Wind Farm with Different Types of Generators

https://ijece.iaescore.com/index.php/IJECE/article/view/5369
Helmy Mohammed Abdel-Mageed
This paper aims to simulate a wind farm model that includes a wind turbine and three different types of generators , which are three-phase synchronous generator, three-phase squirrel-cage induction generatorand three-phase doubly-fed induction generator ,these generators are the main machines that generally used in the field of wind energy generation. All generators are connected in parallel at the point of common coupling(pcc) and connected to the utility grid . This model is a simple representation of the actual model of zafarana, which is the biggest wind farm in Egypt and further to use it in different kinds of simulations, and display the difference in response among all generators with thesame power rating (500 kw) and subjected to the same operating conditions and faults. This paper describes the simulation of the differentfaults that occur along the transmission line of the power system such as single-line fault, line to line fault, double lines to ground fault, and finally three line faults. The response of the wind turbine and the different generators will be analyzed and discussed to compare the transient response of all generators at the different types of faults, where the fault period is selected to be 300 ms. The model is created in MATLAB software that enables the dynamic and static simulations of electric, electromagnetic and electromechanical systems. The machines are standard blocks in the software library.DOI:http://dx.doi.org/10.11591/ijece.v2i1.113
Volume: 2
Issue: 1
Page: 35-45
Publish at: 2011-10-29

Design and Development of Hybrid Multilevel Inverter employing Dual Reference Modulation Technique for Fuel Cell Applications

https://ijpeds.iaescore.com/index.php/IJPEDS/article/view/4868
R. Seyezhai , Banuparvathy Kalpana
MultiLevel Inverter (MLI) has been recognized as an attractive topology for high voltage DC-AC conversion. This paper focuses on a new dual reference modulation technique for a hybrid multilevel inverter employing Silicon carbide (SiC) switches for fuel cell applications. The proposed modulation technique employs two reference waveforms and a single inverted sine wave as the carrier waveform. This technique is compared with the conventional dual carrier waveform in terms of output voltage spectral quality and switching losses. An experimental five-level hybrid inverter test rig has been built using SiC switches to implement the proposed algorithm. Gating signals are generated using PIC microcontroller. The performance of the inverter has been analyzed and compared with the result obtained from theory and simulation. Simulation study of Proportional Integral (PI) controller for the inverter employing the proposed modulation strategy has been done in MATLAB/SIMULINK. Keywords: Multilevel inverter, SiC , dual reference modulation, switching losses, PIDOI: http://dx.doi.org/10.11591/ijpeds.v1i2.99
Volume: 1
Issue: 2
Page: 104-112
Publish at: 2011-10-29

Comparison Analysis Of Recovery Mechanism At Mpls Network

https://ijece.iaescore.com/index.php/IJECE/article/view/33
Mohammad Yanuar Hariyawan
Multi-protocol Label Switching (MPLS) has become an attractive technology of choice for Internet backbone service providers.  MPLS features the ability to perform traffic engineering and provides support for Quality of Service traffic provisioning. To deliver reliable service, MPLS requires a set of procedures to provide protection for the traffic carried on Label Switched Paths (LSP). In this case Lable Switched Routers (LSRS) supports recovery mechanism when failure happened in the network.This paper studied about performance from usage of different techniques that can be used to reroute traffic faster then  the current IP rerouting methods in the case of a failure in a network. Local rerouting, fast reroute one to one backs up, Haskin, PSL oriented path protection and 1+1 path protection recovery mechanism was compared by given of aggregate traffic which has self-similarity character. Packet drop, rejection probability, recovery time, service disruption time and pre-reserved resources backup will be made as comparator parameter with various bitrate and different position of link failure. Packet loss, rejection probability, recovery time and service disruption time at five recovery mechanisms influenced by position of link failure to ingress. 1+1 path protection mechanism has least packet drop, but costliest way to do recovery in the case of usage resources, as traffic is sent simultaneously in two paths which disjoint. Fast reroute one to one backup is quickest way to operate protection switching recovery after 1+1 path protection mechanism. Keywords: MPLS, recovery, rerouting, self-similar traffic, protection switchingDOI:http://dx.doi.org/10.11591/ijece.v1i2.84
Volume: 1
Issue: 2
Page: 151-160
Publish at: 2011-10-29

Neuro-Fuzzy based Controller for a Three- Phase Four-Wire Shunt Active Power Filter

https://ijpeds.iaescore.com/index.php/IJPEDS/article/view/4873
Mridul Jha , S.P. Dubey
This paper describes the application of a novel neuro-fuzzy based control strategy which is used in order to improve the Active Power Filter (APF) dynamics to minimize the harmonics for wide range of variations of load current under various conditions. To improve dynamic behavior of a three phase four-wire shunt active power filter and its robustness under range of load variations, adaptive hysteresis band with instantaneous p-q theory is used with the inclusion of neural network filter for reference current generation and fuzzy logic controller for DC voltage control. The proposed control scheme for “split-capacitor” converter topology is simple and also capable of maintaining the compensated line currents balanced, irrespective of unbalancing in the source voltages & deviation in the capacitor voltages. The results presented in MATLAB-SIMULINK software in this paper clearly reflect the effectiveness of the proposed APF to meet the IEEE-519 standard recommendations on harmonic levels.DOI: http://dx.doi.org/10.11591/ijpeds.v1i2.93
Volume: 1
Issue: 2
Page: 148-155
Publish at: 2011-10-29

Adaptive Neuro-fuzzy Inference System Based Control of puma 600 Robot Manipulator

https://ijece.iaescore.com/index.php/IJECE/article/view/5374
Ouamri Bachir , Ahmed-Foitih Zoubir
The strong dependence of the computed torque control of dynamic model of the robot manipulator makes this one very sensitive to uncertainties of modelling and to the external disturbances. In general, the vector of Coriolis torque, centrifugal and gravity is very complicated, consequently, very difficult to modelled. Fuzzy Logic Controller can very well describe the desired system behavior with simple “if-then” relations owing the designer to derive “if-then” rules manually by trial and error. On the other hand, Neural Networks perform function approximation of a system but cannot interpret the solution obtained neither check if its solution is plausible. The two approaches are complementary. Combining them, Neural Networks will allow learning capability while Fuzzy-Logic will bring knowledge representation (Neuro-Fuzzy). This paper presents the control of puma 600 robot arm using Adaptive Neuro Fuzzy Inference System (ANFIS) based computed torque controller (type PD). Numerical simulation using the dynamic model of puma 600 robot arm shows the effectiveness of the approach in improving the computed torque method. Comparative evaluation with Fuzzy computed torque (type PD) control is presented to validate the controller design. The results presented emphasize that a satisfactory trajectory tracking precision and stabilility could be achieved using ANFIS controller than Fuzzy controller. Keywords: Fuzzy computed torque control, Robot control, Adaptive neuro-fuzzy inference system (ANFIS).DOI:http://dx.doi.org/10.11591/ijece.v2i1.116
Volume: 2
Issue: 1
Page: 90-97
Publish at: 2011-10-29

Mathematical Modeling and Simulation of Photovoltaic Cell using Matlab-Simulink Environment

https://ijece.iaescore.com/index.php/IJECE/article/view/5368
J.Surya Kumari , Ch. Sai Babu
Photovoltaic power supplied to the utility grid is gaining more and more visibility while the world’s powers demand is increases. Growing demand, advancements in semiconductor technology and magnetic materials such as high frequency inductor cores, has a significant impact on PV inverter topologies and their efficiencies, on the improvement of the control circuits on the potential of costs reduction. The user naturally wants to operate the Photovoltaic (PV) array at its highest energy conversion output by continuously utilizing the maximum available solar power of the array. The electrical system PV modules are powered by solar arrays requires special design considerations due to varying nature of the solar power generated resulting from unpredictable and sudden changes in weather conditions which change the solar irradiation level as well as the cell operating temperature. This paper, a mathematical model of a Photovoltaic (PV) cell used matlab-simulink environment, is developed and presented. The model is developed using basic circuit equations of the photovoltaic solar cells including the effects of solar irradiation and temperature changes. The main objective is to find the parameters of the nonlinear I–V equation by adjusting the curve at three points: open circuit, maximum power, and short circuit. the method finds the best I–V equation for the single-diode photovoltaic (PV) model including the effect of the series and parallel resistances–  Key words : Photovoltaic system (PV), maximum power, PV array,PV cellDOI:http://dx.doi.org/10.11591/ijece.v2i1.117
Volume: 2
Issue: 1
Page: 26-34
Publish at: 2011-10-29

An Ozone Reactor Design with Various Electrod Configurations

https://ijece.iaescore.com/index.php/IJECE/article/view/27
Agung Warsito , Abdul Syakur , Galuh Susilowati
Environmental pollution is increasing, including water pollution due to industrial and household. To overcome this, there are three main concerns, namely the policy and environmental management, environmental awareness of society, and utilization of appropriate technologies to overcome pollution. This study is an attempt to overcome the problems of environmental pollution by designing, creating, and applying appropriate technology to make Ozone reactor with high-voltage corona discharge plasma technology. There are some methods of electrod configuration, namely wire-cylinder, spiral-cylinder, wire-cylinder with Dielectric Barrier Discharge (DBD), and spiral-cylinder with DBD. Corona discharge occurs between high-voltage electrod of each configuration ionize Oxygen flowed in the reactor, thus generating plasma and forming Ozone. The test of four Ozone reactors have been done by wastewater treatment in the form of soft drink samples, obtain the fading colors of wastewater, which is increasingly fade over many cycles of waste treatment process conducted in Ozon reactor. Based on comparison of four of Ozone reactor, it is obtained waste water treatment more maximal on reactor Ozone configuration of spiral-cylinder electrod with DBD. Keywords: Ozone reactor, electrods configuration, corona discharge, wastewaterDOI:http://dx.doi.org/10.11591/ijece.v1i2.79
Volume: 1
Issue: 2
Page: 93-101
Publish at: 2011-10-29

Design Simulation Program of Runway Capacity Using Genetic Algorithm at Soekarno-Hatta

https://ijece.iaescore.com/index.php/IJECE/article/view/38
Hoga Saragih , Indra Sulistyo Wibowo , Wisnu Darjono Tulodo Utomo , Rusdianto Roestam
The purposes of this research are to calculate the capacity of runway with runway capacity simulation software using Genetic Algorithm, and to analyze the efforts which have more profound effect. To enhance the runway capacity, some strategies are researched, such as reduction of separation to meet criteria set by FAA’s rule, addition of the exit taxiway, addition of the runway according to master plan of Soekamo-Hatta Airport and changing the runway utilization strategies. Out of the four strategies, the most efficient solution is changing the runway utilization strategies and reduction in separation. However, the addition of runway has the highest capacity increase. Keywords: genetic algorithm, simulation, runway capacity.DOI:http://dx.doi.org/10.11591/ijece.v1i2.85
Volume: 1
Issue: 2
Page: 202-212
Publish at: 2011-10-29

Multiple Switching Patterns for SHEPWM Inverters Using Differential Evolution Algorithms

https://ijpeds.iaescore.com/index.php/IJPEDS/article/view/4867
Ayong Hiendro
An investigation on multiple patterns for both odd and even number of switching angles in a three-phase selective harmonic elimination pulse width modulation (SHEPWM) inverter is presented. The switching patterns are examined and classified on the basis of the harmonic performance of the waveforms output from the inverter. Differential evolution algorithms are employed to calculate the optimum switching angles. Selected cases are verified experimentally by a digital signal processor-based hardware implementation. The experimental results show that all types of the patterns offer low harmonic distortions on the inverter output after filtering.  However, one type gives better harmonic performance is identified.DOI: http://dx.doi.org/10.11591/ijpeds.v1i2.101
Volume: 1
Issue: 2
Page: 94-103
Publish at: 2011-10-29

Creation of Digital Elevated Model using lunar images of Chandrayan – 1

https://ijece.iaescore.com/index.php/IJECE/article/view/37
Sannidhi K S , M. Z. Kurian
The present work discusses the technique and methodology of analysing and Terrain Mapping Camera (TMC) Images acquired during India’s first  Moon mission, Chandrayaan  – 1, launched on October, 2008  for generating Digital Elevated Model (DEM). The Terrain Mapping Camera (TMC) on India’s first satellite for lunar exploration, Chandrayaan-1, is intended for systematic topographic mapping of the entire lunar surface, including the far side and the polar regions. A high resolution imagery of the entire Moon will help detailed study of specific lunar regions of scientific interests and further our understanding of lunar evolution. The swath of the instrument is 20 km. The digital elevation model (DEM) is a computer representation of the moon’s surface. DEMs can be generated by traditional photogrammetry based on aerial photos if they are available and they are created very often more economically by the means of space images. A Digital Terrain Model (DEM) is a continuous representation of a ground surface landform that is commonly used to produce topographic maps. DEMs are created by integrating data obtained from a wide range of techniques including remote sensing and land surveying.DEM's are sampled arrays of elevation values representing ground positions at regularly spaced intervals. Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form.  The normal orientation of data is by columns and rows. In this project work a DEM is created for each of the lunar images retrieved from the space craft using Triangulated Irregular Network (TIN)Key Words : Chandrayaan-1, DEM, Swath, TMC, TINDOI:http://dx.doi.org/10.11591/ijece.v1i2.80
Volume: 1
Issue: 2
Page: 182-186
Publish at: 2011-10-29

Simulation and Implementation of Interleaved Boost DC-DC Converter for Fuel Cell Application

https://ijpeds.iaescore.com/index.php/IJPEDS/article/view/4875
Ahmad Saudi Samosir , NFN Taufiq , Abdul Halim Mohd Yatim
This paper deals with a boost dc-dc converter for fuel cell application. In fuel cell electric vehicles application, a high power boost dc-dc converter is adopted to adjust the output voltage, current and power of fuel cell engine to meet the vehicle requirements. One of challenge in designing a boost converter for high power application is how to handle the high current at the input side. In this paper an interleaved boost dc-dc converter is proposed for current sharing on high power application. Moreover, this converter also reduces the fuel ripple current. Performance of the interleaved boost converter is tested through simulation and experimental results.Keywords: component; Interleaved Boost Converter; Fuel Cell Electric Vehicle; high power application.DOI: http://dx.doi.org/10.11591/ijpeds.v1i2.126
Volume: 1
Issue: 2
Page: 168-174
Publish at: 2011-10-29

Implementation of Scalar Control Technique in SVPWM Switched Three–Level Inverter Fed Induction Motor Using DSP Controller

https://ijpeds.iaescore.com/index.php/IJPEDS/article/view/4866
Vinoth Kumar , S. Suresh Kumar , Kishore Reddy
The main objective of the paper is to control the speed of an induction machine with scalar control technique. The scalar control technique (V/F) is used because of simplicity of control algorithm implementation and the response is better and accurate with closed loop slip compensation. An IGBT based three level diode clamped inverter (DCI) topology has been used instead of conventional two level inverter in order to reduce the harmonic content and to increase the device capability to handle the double the voltage of its rating.DOI: http://dx.doi.org/10.11591/ijpeds.v1i2.98
Volume: 1
Issue: 2
Page: 83-93
Publish at: 2011-10-29

Optimum Generation Scheduling for Thermal Power Plants using Artificial Neural Network

https://ijece.iaescore.com/index.php/IJECE/article/view/31
Nagaraj Mudukpla Shadaksharappa
A simple method to optimize generation scheduling for thermal power plant using artificial neural network is presented. The optimal generation of generators is achieved considering operational and load constraints. The B- Coefficients are used to evaluate transmission loss in the system. The fuel cost of each unit in a plant is computed. The effectiveness of methodology is tested with six thermal power plants. A result of proposed method is compared with classical method. The artificial neural network method is quick. Hence, artificial neural network technique can be used in central load dispatch center.Keywords- Neural network, B-Coefficients, Fuel cost, Power loss, Real powerDOI:http://dx.doi.org/10.11591/ijece.v1i2.83
Volume: 1
Issue: 2
Page: 135-139
Publish at: 2011-10-29

Congestion Management in Hybrid Electricity Markets with FACTS Devices with Loadability Limits

https://ijece.iaescore.com/index.php/IJECE/article/view/5373
Ashwani Kumar Sharma
Congestion management (CM) is one of the most important challenging tasks of the Independent System Operator (ISO) in the deregulated environment. In this paper, generators’ rescheduling based CM approach to manage transmission line congestion considering loadability limit has been presented for hybrid based electricity market model. The main contribution of the paper is (i) to obtain secure transactions for hybrid market model, (ii) optimal rescheduling of generators with loadability limits taken into account with secure transactions, (iii) and impact of FACTS devices on transmission line congestion management. The ISO ensures secure bilateral transactions in a hybrid market model and CM is managed with minimum preferred schedule to obtain minimum congestion cost. The results have been obtained for IEEE 24 bus test system.  Keywords: Generator re-dispatch, congestion management, pool electricity market, bid function, loadability limit.DOI:http://dx.doi.org/10.11591/ijece.v2i1.114
Volume: 2
Issue: 1
Page: 75-89
Publish at: 2011-10-29
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