Articles

Access the latest knowledge in applied science, electrical engineering, computer science and information technology, education, and health.

Advanced Search
Filter Icon

Filters article

Years

FAQ Arrow
Single Year
Range Year
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

29,922 Article Results

Fault disturbances classification analysis using adaptive neuro-fuzzy inferences system

10.11591/ijeecs.v16.i3.pp1196-1202
Shahrani Shahbudin , Murizah Kassim , Roslina Mohamad , Saiful Izwan Suliman , Yuslinda Wati Mohamad Yusof
This paper affords the use of neuro-fuzzy technique called the Adaptive Network–based Fuzzy Inference System (ANFIS) to highlight its ability to perform fault disturbances classification tasks using extracted features based on S-transforms methods. The ANFIS model with a five-layered architecture was trained using extracted features to classify signal data comprising various faults disturbances, namely, voltage sag, swell, impulsive, interruption, notch, and pure signal.  Results obtained showed that the ANFIS model is very suitable and can generate excellent classification results provided that the right type and number of Membership Functions (MFs) are used in the classification task.
Volume: 16
Issue: 3
Page: 1196-1202
Publish at: 2019-12-01

IOT based application for monitoring electricity power consumption in home appliances

10.11591/ijece.v9i6.pp4988-4992
Korakot Luechaphonthara , Vijayalakshmi A
Internet of Things is one of the emerging techniques that help in bridging the gap between the physical and cyber world. In the Internet of Things, the different smart objects connected, communicate with each other, data is gathered from the smart objects and based on the need of the users, and the data gathered are queried and sent back to the user. IoT helps in monitoring electrical and physical parameters. Electricity consumption from electronic devices is one among such parameters that need to be monitored. The development of energy efficient schemes for the IoT is a challenging issue as the IoT becomes more complex due to its large scale the current techniques of wireless sensor networks cannot be applied directly to the IoT. To achieve the green networked IoT, this paper proposes a Wi-Fi enabled simple low cost electricity monitoring device that can monitor the electricity consumption on home appliances which helps to analyses the consumption of electricity on a daily and weekly basis. 
Volume: 9
Issue: 6
Page: 4988-4992
Publish at: 2019-12-01

Efficiency investigation of SS and SP compensation topologies for wireless power transfer

10.11591/ijpeds.v10.i4.pp2157-2164
Masood Rehman , Perumal Nallagownden , Zuhairi Baharudin
Wireless power transfer (WPT) using inductive and resonant coupling has been widely explored in recent years for ease and safety over conventional cable charging systems. The efficiency of WPT systems is reducing drastically due to an increase in air-gaps and misalignment between transmitter (Tx) and receiver (Rx). Many circuit topologies have been analyzed to improve the efficiency of WPT system based on symmetrical coils. However, the circuit topologies have not been studied widely for unsymmetrical coils. This paper presents the investigation of two fundamental topologies i.e. Series-Series (SS) and Series-Parallel (SP) for unsymmetrical coils as well as symmetrical coils. Theoretical analysis of both the compensation topologies have been accomplished, then modeling of both the topologies have been done using two different combination of circular coils. In first case, two similar size coils have been designed and in second case transmitter coil of higher dimensions than receiver coil is designed. The efficiency of the system has been analyzed at multiple distances in both cases by integrating coil structure with the circuit. The overall result show that when Tx is bigger than Rx, the SP topology gives better efficiency than SS counterpart.
Volume: 10
Issue: 4
Page: 2157-2164
Publish at: 2019-12-01

A study on non-linear behavior of memristor emulator using multisim

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/16183
Eadala Sarath Yadav , Rajesh B , Srinivasan C.R , Sai Kalyan P
A Memristor (memory resistor) is a two terminal non-linear passive element used to relate magnetic flux with respect to electric charge. A Memristor opposes the flow of electric current across a device like a resistor but also remember the last charge that was flowing through it.  Memristor is a fourth passive circuit element after inductor ‘L’ resistor ‘R’, and capacitor ‘C. The voltage and current relationship in a memristor is a multivariable function therefore analyzing the circuit is a difficult task. This paper depicts the designing of a memristor model emulator using multisim and studied about its linear and non-linear characteristics.
Volume: 16
Issue: 3
Page: 1213-1220
Publish at: 2019-12-01

Tracking technique for the sudden change of PV inverter load

10.11591/ijpeds.v10.i4.pp2076-2083
Amer Tayes Saeed , Mohammed Qasim Taha , Abdullah Khalid Ahmed
Many power electronics applications require a power calculation in the control system. To get a suitable output, engineers need to control the process and regulate the power exchange with the grid. Since real and reactive power calculations are so crucial a topic, a novel control strategy for a single-phase photovoltaic (PV) inverter has been developed. Therefore, Direct power control (DPC) and a single-phase three-level space vector pulse width modulation (SVPWM) combine as a control and modulation system. In this paper, predictive real and reactive power control and SVPWM method are conferred in the inner loop. A voltage controller based on a proportionalintegral (PI) scheme is used in the outer loop to acquire constant output voltage and provide power refers to the DPC. The performance of the proposed method is verified by using MATLAB/SIMULINK.
Volume: 10
Issue: 4
Page: 2076-2083
Publish at: 2019-12-01

Modeling collaborative practical work processes in an E-learning context of engineering electric education

10.11591/ijeecs.v16.i3.pp1464-1473
Fahd Ouatik , Mustapha Raoufi , Mohamed El Mohadab , Farouk Ouatik , Belaid Bouikhalene , Mohammed Skouri
This work deals with the modeling  the processes of the collaboration in practical work of electronics in a context of e-learning and the remote laboratory which is a new technology allows students to manipulate the practical experience the electronics by controlling all equipments  and instruments of a laboratory via the web without moving to t laboratory. That is for to solve the problems of overcrowding students in universities and the restriction of  time and places and the lack of some instrument in laboratory.  Even this new project will allow the sharing all  instruments and equipments between  universities in the world for to have a cooperation in scientific learning. In this work we are interested to modeling the processes of collaborative electronics practical work, whose actors are :   tutor,  member,  coordinator and the secretary and collaborative tools. Two models have been developed: a tutor-student model showing the activities of the learner and  tutor, and  moderating-member-secretary model that focuses more specifically on the roles of the moderator (coordinator) and the secretary (reporter). This modelling has made it possible to better understand the processes considered and to detect the various problems that may arise during an online particle work collaborative process.
Volume: 16
Issue: 3
Page: 1464-1473
Publish at: 2019-12-01

Congestion bottleneck avoid routing in wireless sensor networks

10.11591/ijece.v9i6.pp4804-4814
Sanu Thomas , Thomaskutty Mathew
A new efficient method for detecting congested bottleneck nodes and avoiding them in the route formation in a wireless sensor network is described. Sensor nodes with a higher degree of congestion are excluded while determining the best routing path from a given source to destination in a multi-hop transmission. In a scenario where different communication paths have different maximum congestion levels, selecting that path which has least maximum congestion, is a challenging task. A modified Bellman-Ford algorithm is proposed to solve this problem efficiently. The proposed technique is very much useful for the optimal route selection for vehicles in metropolitan cities that avoids high traffic density junctions. Once the desired destination is specified, the traffic control system can use this algorithm to provide the least congested routes to the intra-city vehicles.
Volume: 9
Issue: 6
Page: 4804-4814
Publish at: 2019-12-01

Proportional resonant current controller strategy in inverter application

10.11591/ijpeds.v10.i4.pp2238-2244
S. Salimin , A.F.M. Noor , S. A. Jumaat
This paper presents the method of proportional resonant current controller strategy in inverter system application. In this study, the mathematical modelling of the controller is shown in detail. This is important for the modelling in Matlab Simulink. Nowadays, the decrement of power quality is easily found in this inverter system where inverter extensively used as interface circuits. To solve this problem, proportional resonant current controller is the solution. At resonant frequency, this controller has infinite gain which ensures a zero steady-state error in a stationary frame. This will result in minimized load current distortion as well as the harmonic contents. At the end, simulation result shows when using PR current controller, the unwanted harmonics injection are much reduced.
Volume: 10
Issue: 4
Page: 2238-2244
Publish at: 2019-12-01

Sensorless control of PMSM with fuzzy model reference adaptive system

10.11591/ijpeds.v10.i4.pp1772-1780
Larbi M’hamed , Adjir Roufaida , ait ameur mezyane nawal
To improve the performance of permanent-magnet synchronous motor (PMSM) drives powered by the voltage inverter with PWM control, a sensorless control scheme based on a Model Reference Adaptive System (MRAS) a fuzzy logic controller (FLC) based in with fuzzy supervisor structure. The major drawbacks of the conventional MRAS, namely chattering phenomena, high-order harmonics andexternal noise, are discussed. These drawbacks affect the estimated speed accuracy of the MRAS and reduce the control reliability of the system. To eliminate these drawbacks, an FLC is designed and integrated into the MRAS to adjust the observer gain to reduce the chattering in closed loop speed and closed loop current/torque. Comparative simulations using the proposed Fuzzy-MRAS and the conventional MRAS are performed to validate the effectiveness of the proposed FLC structure. Performance simulations of the overall proposed Fuzzy-MRAS based sensorless control scheme are performed to verify the robustness and control reliability of the system. The results show that the proposed Fuzzy MRAS has satisfactory performances with reduction of total harmonic distortion generated in the phase currents.
Volume: 10
Issue: 4
Page: 1772-1780
Publish at: 2019-12-01

Mini review on the design of axial type eddy current braking technology

10.11591/ijpeds.v10.i4.pp2198-2205
H.T. Waloyo , Ubaidillah Ubaidillah , D.D.D.P. Tjahjana , M. Nizam , T. Koga
Eddy Current Brake (ECB) is a type of electric braking that uses eddy current to produce braking forces. This article delivers a solid review of the design of Axial ECB, which is very promising for an alternative braking system. Several types of axial ECB are classified and named as a single disk, double disk, and unipolar model. The classification of axial ECB is based on the design of coil placement, which induces axial area of the disk as well as the electromagnet source. A potential issue for the development of axial ECB is also discussed to explore the braking performance improvement of the axial type ECB. It was highlighted that research on how to change the direction of magnetic field vectors by changing the shape of the pole-shoe on the electromagnetic ECB in axial type has not been widely studied. Therefore, this issue would be interesting for future investigation.
Volume: 10
Issue: 4
Page: 2198-2205
Publish at: 2019-12-01

Investigating understanding the nature of science

10.11591/ijere.v8i4.20282
Veena Prachagool , Prasart Nuangchalerm
The survey method was employed for investigating understanding nature of science (NOS) between general science education and science pre-service teachers. Independent t-test and two-way ANOVA were used for testing hypothesis. Results found that both of two programs rated understanding NOS ranges disagree and highly agree levels in different items. The item ‘scientists work in their laboratory, even though social needs are not influence to scientists’, disagree for general science education but agree for science program. The post-hoc test indicated that there were not differences by mean scale of two programs. There was no interaction between group and components of NOS. The post-hoc test also indicated that not found the differences in each component among scientific worldview, scientific inquiry, and scientific enterprises. However, three components of NOS must incorporate to teacher preparation program for making community of science and literate person as well as philosophy of science education.
Volume: 8
Issue: 4
Page: 719-725
Publish at: 2019-12-01

Determination of all stability region of unstable fractional order system in case of bearing system

10.11591/ijpeds.v10.i4.pp1734-1741
Phu Tran Tin , Nguyen Quang Dung , Minh Tran , Van-Duc Phan , Hoang-Nam Nguyen , Tran Thanh Trang
In this paper, we propose and investigate the optimal tuning PID controller of unstable fractional order system by desired transient characteristics using the real interpolation method (RIM). The research shows that the main advantages of this method are drawn as the followings: 1) Carrying out an investigation of the stable region of coefficients of a PID controller using D-decomposition method; 2) Applying the method to investigate an unstable fractional order system.
Volume: 10
Issue: 4
Page: 1734-1741
Publish at: 2019-12-01

Reversible logic in pipelined low power vedic multiplier

10.11591/ijeecs.v16.i3.pp1265-1272
Ansiya Eshack , S. Krishnakumar
With an ever growing demand for low-power devices, it is a general trend to search for ways to reduce the power consumption of a system. Multipliers are an important requirement in applications linked to Digital Signal Processing, Communication Systems, Optical Computing, Nanotechnology, Low-Power Very Large Scale Integration and Quantum Computing. Conventional mathematics makes multiplication a very long and time consuming process. The use of Vedic mathematics has led to great reduction in the time required for such calculations. The excessive use of Urdhava Tiryakbhyam sutra in multiplication surely proves its effectiveness and simplicity in this domain. This sutra supports the process of pipelining, a method employed in reduction of the power used by a system. Reversible logic has been gaining demand due to its low-power capabilities and is currently being used in many computing applications. The paper proposes two multiplier systems: one design employs the Urdhava Tiryakbhyam sutra along with pipelining and the second uses reversible logic gates into the first design. These proposed systems provide very less delay for result computation and low hardware utilization when compared to non-pipelined Vedic multipliers.
Volume: 16
Issue: 3
Page: 1265-1272
Publish at: 2019-12-01

Design prototype of a smart household touch sensitive locker security system based on GSM technology

10.11591/ijpeds.v10.i4.pp1923-1931
Mohammad Zeyad , Susmita Ghosh , S.M. Masum Ahmed
This paper illustrates a portable domestic locker security system which is based on GSM (Global System for Mobile Communications) technology. A handcrafted low-cost touch sensitive box is designed (using Vero board) for the project which is one of the most attractive features of the system. The system will operate in a way that if there is any unexpected user, tries to touch any portion of the touch sensitive box, a feedback system will be turned on immediately. The feedback system will alert the property holder about the unexpected user by sending SMS (Short Message Service) and turning on an alarm system. The alarm system will be turned off only if it receives a specific SMS from the property holder. This system not only has the advantages of high sensitivity, small size and lightweight, but also it is easy to use. This system is featured with an uncomplicated design, convenient use, strong flexibility and reliable performance. Since the circuit in the system is simple and easy to contrivance, the system can be installed without any difficulty at homes & offices. It will also provide a good security in the vehicles and Automated Teller Machine (ATM) booths.
Volume: 10
Issue: 4
Page: 1923-1931
Publish at: 2019-12-01

Study of automatic generation control in two area power system with DFIG-based wind energy conversion

10.11591/ijpeds.v10.i4.pp2118-2125
Soumia Kail , Abdelkader Bekri , Abdeldjebar Hazzab
The main objective of Automatic Generation Control (AGC) is to keep the frequency within specified limits through primary and secondary control. In this study, a model of two area thermal non-reheat power system with integration of Doubly Fed Induction Generator (DFIG) based Wind Energy Conversion (WEC) into both areas is presented. A Proportional Integral Derivative (PID) controller and a Fuzzy Logic Controller (FLC) have been applied and compared. The Proposed controllers are used to improve the dynamic response as well as to reduce or eliminate the steady-state error in Area Control Error (ACE). FLC has been offered better and faster performance over the PID controller. The results obtained prove the impact of DFIG-based WEC on AGC and confirm the participation of the DFIG in the frequency system.
Volume: 10
Issue: 4
Page: 2118-2125
Publish at: 2019-12-01
1 2 3
...
1994 1995
Show 1209 of 1995

Discover Our Library

Embark on a journey through our expansive collection of articles and let curiosity lead your path to innovation.

Explore Now
Library 3D Ilustration