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29,922 Article Results

Simplified down sampling factor based modified SVPWM technique for cascaded inverter fed induction motor drive

10.11591/ijaas.v9.i1.pp20-26
Ravi Kumar Bhukya , P. Satish Kumar
This paper presents a rivew, investigation and performance analysis of novel down samples factor based modified space vector PWM is called clamping SVPWM technique for cascaded Multilevel Invereter fed to Induction motor drive. In this paper the reference sine wave generated as in case of conventional off set injected SVPWM technique is modified by down sampling factor the reference wave by order of 10. The performance analyses of this modulation strategies are analyzed by apply for five level, seven level, nine level and eleven level inverter. The performance analysis of cascaded inverter interms of line voltage, stator current, speed, torque and total harmonic distortion. The results are depicting that PD PWM is more effective among the four proposed PWM technique. It is observed that the CSV Pulse width modulation ensures excellent, close to optimized pulse distribution results compared to SPWM technique and also 11-level inverter beter performance in case of low THD and better foundemental output voltages comapared to 5, 7, 9-level inverter. The proposed technique has been simulated using MATLAB/SIMULINK software. This proposed technique can be applied to N-level multilevel Inverter also.
Volume: 9
Issue: 1
Page: 20-26
Publish at: 2020-03-01

Artificial neural network forecasting performance with missing value imputations

10.11591/ijai.v9.i1.pp33-39
Nur Haizum Abd Rahman , Muhammad Hisyam Lee
This paper presents time series forecasting method in order to achieve high accuracy performance. In this study, the modern time series approach with the presence of missing values problem is developed. The artificial neural networks (ANNs) is used to forecast the future values with the missing value imputations methods used known as average, normal ratio and also the modified method. The results are validated by using mean absolute error (MAE) and root mean square error (RMSE). The result shown that by considering the right method in missing values problems can improved artificial neural network forecast accuracy. It is proven in both MAE and RMSE measurements as forecast improved from 8.75 to 4.56 and from 10.57 to 5.85 respectively. Thus, this study suggests by understanding the problem in time series data can produce accurate forecast and the correct decision making can be produced.
Volume: 9
Issue: 1
Page: 33-39
Publish at: 2020-03-01

Application of artificial neural network in sizing a stand-alone photovoltaic system: a review

10.11591/ijpeds.v11.i1.pp342-349
Ahmad Fateh Mohamad Nor , Suriana Salimin , Mohd Noor Abdullah , Muhammad Nafis Ismail
Artificial Neural Network (ANN) techniques are becoming useful in the current era due to the vast development of the current computer technologies. ANN has been used in various fields especially in the field of science and technology. One of the advantage that makes ANN so interesting is the ANN’s ability to learn the input and output relationship even though the relationship is non-linear. In addition, ANN is also useful for modelling, optimization, prediction, forecasting, and controlling systems. The main objective of this paper is to present a review of the ANN techniques for sizing a stand-alone photovoltaic (PV) system. The review in this paper shows the potential of ANN as a design tool for a stand-alone PV. In addition, ANN is very useful to improve the sizing process of the stand-alone PV system. The sizing process is of paramount importance to a stand-alone PV system in order to make sure the system can generate ample electrical energy to supply the load demand.
Volume: 11
Issue: 1
Page: 342-349
Publish at: 2020-03-01

Three phase PUC5 inverter fed induction motor for renewable energy applications

10.11591/ijpeds.v11.i1.pp1-9
V V Nagaraju Goriparthi , Gudapati Sambasiva Rao
This paper gives the overview three phase 5 level packed U cell (PUC5) inverter fed Induction Motor feed from renewable energy sources for electric vehicles and water pump set in agriculture applications. PUC5 inverter requires a minimum number of semiconductor devices, one PV panel and only one capacitor in each phase. Maximum all possible switching sequences are analyzed and sensor less voltage balancing technique depending on simple switching modes was integrated as level shifted PWM controller for control the PUC5 inverter switches. Sensor less voltage balancing fixes the capacitor voltage (Vc) at half of the PV source (Vdc) magnitude in each phase, which results the symmetric five level wave in phase voltage output and seven level waveform in line voltage with less harmonics. This topology minimizes the complication in the control system which creates the PUC5 inverter most suitable for industrial applications and market requirements. It is compared with other popular multilevel inverters In terms of component count, voltage rating, voltage balancing and complexity etc. In order to test the performance proposed PUC inverter it is tested with rated load with Matlab/Simulink. The results obtained have shown good dynamic performance under different conditions.
Volume: 11
Issue: 1
Page: 1-9
Publish at: 2020-03-01

Design and implementation of line follower and obstacle detection robot

10.11591/ijpeds.v11.i1.pp160-168
Ahmed Bendimrad , Ayoub El Amrani , Bouchta El Amrani
In this paper, we propose a method for a line follower robot based on the instantaneous computation of the radius of curvature of this line, using infrared line sensors. The number and layout of its sensors, as well as the method chosen, play an important role in the robot's response to the line, with the desired accuracy and speed. In addition, the robot must be equipped with an anti-collision system, using an ultrasonic distance sensor, to detect and avoid obstacles in several situations, especially at line crossovers, when other robots share a common complex line.
Volume: 11
Issue: 1
Page: 160-168
Publish at: 2020-03-01

A simulation based performance evaluation of optical ethernet switch

10.11591/ijeecs.v17.i3.pp1639-1646
Dawit Hadush Hailu , Gebrehiwet Gebrekrstos Lema , Gebremichael T. Tesfamariam , Tole Sutikno
With the advent of several new cloud radio access network (C-RAN) technologies, today’s networking environment is dramatically altered and is experiencing a rapid transformation. One of the most important is ethernet based C-RAN, in support of which many products such as optical Ethernet switches have recently appeared on the market. This paper presents the performance analysis of such switches with respect to packet loss ratio (PLR), latency and packet delay variation (PDV). We employed the Simula based on discrete event modelling on Simula (DEMOS), a context class for discrete event simulation to simulate a cut-through optical ethernet switch under two types of traffics: high priority (HP) traffic and low priority (LP) traffic. In this way, the paper evaluates the optical Ethernet switch performance quantitatively. The results obtained from the simulator showed that the high quality of service was reflected on HP traffic and the low quality of service in LP traffic. Hence, HP traffic can be used for transporting radio over ethernet (RoE) traffic while LP traffic can used for transporting time insensitive application. It is also found that HP traffic experiences a PDV equals to the duration of maximum sized LP traffic in Optical Ethernet switch.
Volume: 17
Issue: 3
Page: 1639-1646
Publish at: 2020-03-01

Comparative study of metaheuristics methods applied to smart grid network in Morocco

10.11591/ijpeds.v11.i1.pp487-495
Rachid Habachi , Achraf Touil , Abdellah Boulal , Abdelkabir Charkaoui , Abdelwahed Echchatbi
The economic dispatch problem of power plays a very important role in the exploitation of electro-energy systems to judiciously distribute power generated by all plants. The Unit commitment problem (UCP) is mainly finding the minimum cost schedule to a set of generators by turning each one either on or off over a given time horizon to meet the demand load and satisfy different operational constraints, This research article integrates the crow search algorithm (CSA) as a local optimizer of Eagle strategy (ES) to solve economic dispatch and unit commitment problem in smart grid system of two electricity networks: a testing system 7 units and the Moroccan  network.. The results obtained by ES- CSA are compared with various results obtained in the literature. Simulation results show that using ES-CSA can lead to finding stable and adequate power generated that can fulfill the need of both the civil and industrial areas.
Volume: 11
Issue: 1
Page: 487-495
Publish at: 2020-03-01

New model of electric traction drive based sliding mode controller in field-oriented control of induction motor fed by multilevel inverter

10.11591/ijpeds.v11.i1.pp242-250
Chaymae Laoufi , Zouhair Sadoune , Ahmed Abbou , Mohammed Akherraz
This paper presents a new model of electric traction drive for electric vehicle. The sliding mode speed controller applied in the Indirect Rotor Field Oriented Control is used to control the induction motor fed by the five levels Neutral Point Clamped inverter (NPC). The simulation results showed the high performances dynamics and high robustness of the proposed model, that are reflected by faster startup and good speed tracking performances in terms of response time, oscillations and disturbance rejection. Also, a comparative study between different inverter topologies: two levels inverter, three levels NPC inverter and five levels NPC inverter has been carried out. From the spectral analysis, the five-levels NPC inverter fed drive provides better dynamics of voltage and current with reduced total harmonic distortion (THD).
Volume: 11
Issue: 1
Page: 242-250
Publish at: 2020-03-01

Coordination of directional overcurrent and distance relays based on nonlinear multivariable optimization

10.11591/ijeecs.v17.i3.pp1194-1205
Tahseen Ali Abd Almuhsen , Ahmed Jasim Sultan
To ensure stability, security, and protection of electrical equipment from the damage the suitable coordination must be made in interconnected networks. In this paper, the nonlinear multivariable optimization techniques have been used with different performance indexes: Sequential quadratic programming (SQP), Sequential quadratic programming legacy (SQP-Legacy), Interior-Point and Active-Set for IEEE- 8 bus test system.  This system consists of twenty-eight protective relays divided into fourteen directional overcurrent relays (DOCR) and fourteen distance relays (DR). It has been tested in the ETAP environment to obtain three-phase short circuit current at the near and far end faults and operating time for all DOC relays for near-end fault as well as test the second zone time for distance relays (TZ2) with pilot signal (WP)and without pilot signal (WOP) of the proposed algorithm was used to reduce overall operating time of DOC relays and obtain optimal values for time multiplier setting (TMS) and TZ2 with the different coordination time interval (CTI) between main and backup relays. The simulation results were validated in ETAP program prove that the effectiveness of the Active-Set to minimize the TMS and TZ2 for the system.
Volume: 17
Issue: 3
Page: 1194-1205
Publish at: 2020-03-01

Third harmonic injection pulse-width modulation technique for a five-phase voltage source inverter

10.11591/ijeecs.v17.i3.pp1607-1617
Yasir M.Y. Ameen , Bashar A. Fadheel , Ali J Mahdi
Nowadays application of advanced power electronic technology enables producing an AC supply with a phase number higher than three-phase. Five-phase voltage source inverters (5ph-VSI) have been used in advanced power electronic drives to improve the reliability of the drive system and to boost the power capability of the converter as well as to their other inherent merits. This paper shows the mathematical analysis and simulation of the third harmonic injection pulse width modulation (THI-PWM) 5ph-VSI connected with inductive load in three scenarios i.e. star, Pentagon and pentacle. The presented THI-PWM technique for 5ph-VSI aims to increase the inverter fundamental voltage and hence to maximize the utilization of the DC bus without causing over-modulation. The simulation results are compared with typical sinusoidal pulse width modulation (SPWM) and the 10-step mode operation. The proposed scheme may be considered as a compromise case between the two reference cases;  as low harmonic components compared with 10-step mode operation and a high utilization factor compared with SPWM.
Volume: 17
Issue: 3
Page: 1607-1617
Publish at: 2020-03-01

Flight cost calculation for unmanned air vehicle based on path length and heading angle change

10.11591/ijpeds.v11.i1.pp382-389
Sanjoy Kumar Debnath , Rosli Omar , B.S.S.K. Ibrahim , Susama Bagchi , Elia Nadira , Faisal Amin , Bashir Bala Muhammad
This paper proposes a method to calculate a flight cost of an unmanned aerial vehicle (UAV) considering its change of heading angle though there are many reasons that cause the energy consumption. The proposed approach demonstrates that when a UAV moves from a starting position/point to a target/goal position/point, if the number of obstacle increases, the number of heading change would also increase. As a result, it raises the energy consumption of the UAV. It also shows that the magnitude of heading change would affect the energy consumption proportionally. The theoretical analysis as well as the simulation outcome proves the usefulness of the proposed technique. 
Volume: 11
Issue: 1
Page: 382-389
Publish at: 2020-03-01

Applied measurement of the motor speed controller for washing machine with random loads, part II

10.11591/ijpeds.v11.i1.pp442-450
Khalid Mohammed , Jabbar A.F. Yahaya , Reyasudin Basir Khan
This research presents a very important industrial issue of controlling the production target, despite changing loads. Engines of various types, whether synchronous or synchronous, operate on single and three phase AC, DC motors or special motors such as stepper and servo. In all these motors, the speed control of the torque and speed of the above motors has gained considerable importance. There are three main ways reviewed in the current search, the second that completes the previous research referred to in the references. The three methods are PID method, LQR method and feeding –forward control methods. A real DC motor was used in electrical engineering machine laboratory at University of Diyala, Iraq. Where the actual parameters of the DC motor were actually calculated. The practical parameters were then integrated into the three control method Matlab codes for the purpose of comparing the results and representing the motor performance in the indicated control methods.
Volume: 11
Issue: 1
Page: 442-450
Publish at: 2020-03-01

Electricity market strategies applied to microgrid development

10.11591/ijpeds.v11.i1.pp530-546
Carlos Ulises Cassiani , John Edwin Candelo Becerra , Fredy Edimer Hoyos
Over the last decade, the liberalization of the electricity market has been sought. In order to fight the environmental impact caused by the use of fossil fuels, it is aimed to change the current system of centralized generation and achieve a more distributed one; distributed resources can use renewable or non-renewable resources as main source of energy, one way to implement these distributed systems is through micro electrical grids, since these allow improving energy efficiency. The way to efficiently implement this type of network is an important point to be solved in future research and even more if the way of conducting an electricity market for different communities is unknown. That is why this text presents the characteristics of microgrids, the management of microgrids, and the wide and promising panorama of future opportunities for a great development of this type of grid.
Volume: 11
Issue: 1
Page: 530-546
Publish at: 2020-03-01

Islanding detection of integrated distributed generation with advanced controller

10.11591/ijeecs.v17.i3.pp1626-1631
J Rajesh Reddy , A Pandian , R Dhanasekaran , Rami Reddy Ch , B Prasanna Lakshmi , B Neelima Devi
Grid integration of non conventional energy resources is increasing in day to day life to supply the global energy utilization requirement. The major problem with such integrated Distributed Generation (DG) is islanding. The islanding is originated in the integrated system when a part of the power system is disconnected from the grid and continue to feed the local load. The islanding is not safe to field persons and equipment. As per IEEE 1547 standards, the islanding should be detected within 2 seconds with the equipments associated with it. In this paper, a new islanding detection method is proposed with fuzzy rule based approach with inputs as the change in frequency and power. This method classifies the islanding and non islanding events efficiently compared to other passive methods. The simulations are carried on Matlab/ Simulink 2018b environment.
Volume: 17
Issue: 3
Page: 1626-1631
Publish at: 2020-03-01

A colour recognition device for the visually disabled people

10.11591/ijeecs.v17.i3.pp1322-1329
Norazila Othman , Mohd Zarhamdy Md. Zain , Iskandar Shah Ishak , Abdul Rahim Abu Bakar , Mastura Ab Wahid , Maziah Mohamad
Visually disabled people rely on the sense of touch and sense of hearing to help them recognise anything in their everyday life. Colours, however, is also important in giving information about things such as the colour of cash note (blue, green, red, orange and purple), the colour of spices (yellow turmeric, red chilli, green chilli) and colour of cloth. Without a sense of visual, they are not able to recognise colour and perceive the beauty of colour. This study was conducted to develop a colour recognizer for visually ‎disabled people‎. Colour recogniser used the colour sensor to sense the colour, microcontroller to recognise the colour and notify the user using a speech generator and speaker. The device is powered by dry cell batteries and designed to be user-friendly, practical and portable. The testing is done to show that this device was able to sense and differentiate 12 primary colours in the RGB colour wheel and validated the accuracy of this devices.
Volume: 17
Issue: 3
Page: 1322-1329
Publish at: 2020-03-01
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