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2016

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Vehicle Localization Systems: Towards Low-Cost Architectures, Sakhi Samir, Abdelhafid Elouardi, Bouaziz Samir, Mahmoud Belhocine Jan 2016

Vehicle Localization Systems: Towards Low-Cost Architectures, Sakhi Samir, Abdelhafid Elouardi, Bouaziz Samir, Mahmoud Belhocine

Turkish Journal of Electrical Engineering and Computer Sciences

the accuracy of an inertial navigation system alone. However, its implementation complexity has been a challenge to most embedded systems. This paper proposes a low-cost FPGA-based INS-GPS integration system, which consists of a Kalman filter and a soft processor. Moreover, we also evaluate the navigation algorithm on a low-cost ARM processor. Processing times and localization accuracy are compared in both cases for single and double precision floating-point format. Experimental results show the advantages of the FPGA-based approach over the ARM-based approach. The proposed architecture can operate at 100 Hz and demonstrates the advantage of using FPGAs to design low-cost INS-GPS …

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A New Method For Accurate Estimation Of Pv Module Parameters And Extraction Of Maximum Power Point Under Varying Environmental Conditions, Mohamed Saleem Abdul Kareem, Manimaran Saravanan Jan 2016

A New Method For Accurate Estimation Of Pv Module Parameters And Extraction Of Maximum Power Point Under Varying Environmental Conditions, Mohamed Saleem Abdul Kareem, Manimaran Saravanan

Turkish Journal of Electrical Engineering and Computer Sciences

The objective of this paper is to estimate the values of five parameters ($A$, $R_{se}$, $ R_{sh}$, $ I_{LG}$, and $I_{sat})$ of a PV module more accurately and to extract the maximum power point (MPP) accurately under varying environmental conditions. Suitable new equations are proposed, by which the values of the series and shunt resistances are initialized in order to obtain good convergence speed in the Gauss--Seidel method. In this work, two new equations are proposed to find the ideality factor and shunt resistance and to obtain accurate MPP of the PV model under varying environmental conditions. The proposed PV …

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Design Of A Frequency Control System In A Microgrid Containing Hvac, Mohammad Koochakian Jazi, Seyed Masoud Moghaddas-Tafreshi, Mehdi Jafari Jan 2016

Design Of A Frequency Control System In A Microgrid Containing Hvac, Mohammad Koochakian Jazi, Seyed Masoud Moghaddas-Tafreshi, Mehdi Jafari

Turkish Journal of Electrical Engineering and Computer Sciences

controllable loads and tending to the demand response (DR) in small power systems have helped with new ideas, which can be used in the frequency stability of a microgrid. This paper presents a novel model for frequency control of a microgrid containing controllable load and renewable resources. The controllable loads used in this paper are such as heating, ventilation, and air conditioning, which change temperature based on frequency change. The microgrid is hybrid (AC/DC) and able to connect to and energy exchange with the utility grid. The design of PID controller parameters is considered an optimization problem according to the …

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Automatic Detection Of Coronary Artery Disease Using Registration Of Ultrasound Images Of The Heart (Echocardiography), Pedram Masaeli, Seyyed Mohammad Alavi Jan 2016

Automatic Detection Of Coronary Artery Disease Using Registration Of Ultrasound Images Of The Heart (Echocardiography), Pedram Masaeli, Seyyed Mohammad Alavi

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Modeling And Rotor Field-Oriented Control Of A Faulty Three-Phase Induction Motor Based On Gsa For Tuning Of Pi Controllers, Ali Monadi, Mohammad Jannati, Nik Rumizi Nik Idris, Ahmad Athif Mohd Faudzi, Frede Blaabjerg Jan 2016

Modeling And Rotor Field-Oriented Control Of A Faulty Three-Phase Induction Motor Based On Gsa For Tuning Of Pi Controllers, Ali Monadi, Mohammad Jannati, Nik Rumizi Nik Idris, Ahmad Athif Mohd Faudzi, Frede Blaabjerg

Turkish Journal of Electrical Engineering and Computer Sciences

modeling and a rotor field-oriented control (RFOC) system for controlling a faulty three-phase induction motor (three-phase IM when one of the phases is disconnected). In the adapted scheme for controlling the faulty IM, it is necessary for the PI controller coefficients to change. For this purpose, the gravitational search algorithm (GSA) is used for tuning of PI controllers. The results show the strength and ability of the technique to improve the performance of the faulty IM control.

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A New Algorithm For Detection Of Link Spam Contributed By Zero-Out Link Pages, Ravi Kumar Patchmuthu, Ashutosh Kumar Singh, Anand Mohan Jan 2016

A New Algorithm For Detection Of Link Spam Contributed By Zero-Out Link Pages, Ravi Kumar Patchmuthu, Ashutosh Kumar Singh, Anand Mohan

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Enhancement Of A Reduced Order Doubly Fed Induction Generator Model For Wind Farm Transient Stability Analyses, Mehmet Kenan Döşoğlu, Ayşen Basa Arsoy Jan 2016

Enhancement Of A Reduced Order Doubly Fed Induction Generator Model For Wind Farm Transient Stability Analyses, Mehmet Kenan Döşoğlu, Ayşen Basa Arsoy

Turkish Journal of Electrical Engineering and Computer Sciences

(DFIG) implemented for wind power systems is very important for transient stability. The rotor dynamic model (RDM) as well as the reduced order model (ROM) of a DFIG has been developed for transient analysis purpose. The performances of reduced order DFIG models with/without RDM have been compared. Modeling and analyses have been carried out in MATLAB/SIMULINK. Comparison of system behaviors against 3 phase fault is made between without RDM and with RDM. Several parameters such as output voltage, active power, speed, electrical torque variations, and d-q axis stator and rotor current variations of the DFIG along with a 34.5 kV …

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Plea: Parametric Loop Bound Estimation In Wcet Analysis, Saeed Parsa, Mehdi Sakhaei-Nia Jan 2016

Plea: Parametric Loop Bound Estimation In Wcet Analysis, Saeed Parsa, Mehdi Sakhaei-Nia

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Reducedcbt And Supercbt: Two New And Improved Complete Binary Tree Structures, Mevlüt Bulut Jan 2016

Reducedcbt And Supercbt: Two New And Improved Complete Binary Tree Structures, Mevlüt Bulut

Turkish Journal of Electrical Engineering and Computer Sciences

tree, a separate parent-child-sister hierarchy is employed independent of the parent-child-sister hierarchy used for the rest of the tree. Two different versions of such a local hierarchy are introduced. The result of the first proposed hierarchy is a faster and smaller footprint, while the second one provides size variation functionality without a significant computational overhead. Complexity comparison between the algorithms based on the introduced local hierarchies and ones based on previous complete binary tree structures reveals that the novel approach brings considerable memory gains and performance boosts to the complete binary tree based algorithms.

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Dynamic Analysis Of A Modular Isolated Bidirectional Dc-Dc Converter For High Power Applications, Farzad Sedaghati, Seyed Hossein Hosseini, Mehran Sabahi, Gevorg Babamalek Gharehpetian Jan 2016

Dynamic Analysis Of A Modular Isolated Bidirectional Dc-Dc Converter For High Power Applications, Farzad Sedaghati, Seyed Hossein Hosseini, Mehran Sabahi, Gevorg Babamalek Gharehpetian

Turkish Journal of Electrical Engineering and Computer Sciences

dc-dc converters is presented. The proposed converter has interesting features such as fewer switching devices, bidirectional power flow, and low switching losses. The simple modular structure, high frequency operation, zero voltage switching (ZVS) capability, and fewer switching devices make the extended configuration of the proposed converter suitable for high power applications. The operation principle of the proposed converter is analyzed in steady state, and then ZVS analysis of the converter is presented in detail. A generalized averaging technique, which uses dc and first order terms of Fourier's series of state variables, is applied to model the converter. A small-signal average …

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Name Spell-Check Framework For Social Networks, Burak Yildiz, Fati̇h Emekci̇ Jan 2016

Name Spell-Check Framework For Social Networks, Burak Yildiz, Fati̇h Emekci̇

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Modeling And Control Of A 6-Control-Area Interconnected Power System To Protect The Network Frequency Applying Different Controllers, Ngockhoat Nguyen, Qi Huang, Thi-Mai-Phuong Dao Jan 2016

Modeling And Control Of A 6-Control-Area Interconnected Power System To Protect The Network Frequency Applying Different Controllers, Ngockhoat Nguyen, Qi Huang, Thi-Mai-Phuong Dao

Turkish Journal of Electrical Engineering and Computer Sciences

In this paper, we first analyze and build a model of the 6-control-area interconnected power system as the typical case study. Subsequently, different frequency controllers based on tie-line bias control strategy, namely integral, proportional--integral, proportional--integral--derivative, and PI-based fuzzy logic, will be investigated and applied to the power system model. The most important control performances, such as overshoots and settling times, are considered in this study to evaluate the stability of the power system and choose the most suitable controller for maintaining the network frequency. The simulation results have been achieved by using MATLAB/Simulink package version 2013 in this work. According …

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Design And Implementation Of A New Manet Simulator Model For Aodv Simulation, Si̇nan Tüncel, Hüseyi̇n Eki̇z, Ahmet Zengi̇n Jan 2016

Design And Implementation Of A New Manet Simulator Model For Aodv Simulation, Si̇nan Tüncel, Hüseyi̇n Eki̇z, Ahmet Zengi̇n

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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A Real-Time Virtual Sculpting Application By Using An Optimized Hash-Based Octree, Gülüzar Çi̇t, Kayhan Ayar, Cemi̇l Öz Jan 2016

A Real-Time Virtual Sculpting Application By Using An Optimized Hash-Based Octree, Gülüzar Çi̇t, Kayhan Ayar, Cemi̇l Öz

Turkish Journal of Electrical Engineering and Computer Sciences

sculpting system by using a hash-based octree data structure with an optimized approach to reduce the huge memory and computation cost and also the tree traversal time. The system first reads the selected 3D virtual object model, which must be in a triangular watertight polygon mesh format. Then both the surface and the interior volume of the virtual object is voxelized in order to generate its volumetric dataset. Afterwards, a hash-based data structure with a novel optimized approach is applied to the dataset. After each sculpting process applied to the virtual object, its surface is locally reconstructed and a feedback …

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Peak-To-Average Power Ratio Reduction Using Backtracking Search Optimization Algorithm In Ofdm Systems, Necmi̇ Taşpinar, Yüksel Tokur Bozkurt Jan 2016

Peak-To-Average Power Ratio Reduction Using Backtracking Search Optimization Algorithm In Ofdm Systems, Necmi̇ Taşpinar, Yüksel Tokur Bozkurt

Turkish Journal of Electrical Engineering and Computer Sciences

A peak-to-average power ratio (PAPR) reduction method for an orthogonal frequency division multiplexing (OFDM) system based on a combination of a partial transmit sequence (PTS) scheme with the backtracking search optimization algorithm (BSA) is proposed. The PTS scheme shows good PAPR reduction performance; however, it requires a complex computation to search the set of optimum phase factors, especially for high-speed data transmissions. To minimize the complexity of the search for optimum phase factors, the PTS scheme is combined with the BSA. The BSA is a new and efficient population-based evolutionary search algorithm for real-valued optimization problems. A set of simulations …

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Ship-Radiated Noise Feature Extraction Using Multiple Kernel Graph Embedding And Auditory Model, Xinzhou Xu, Xinwei Luo, Chen Wu, Li Zhao Jan 2016

Ship-Radiated Noise Feature Extraction Using Multiple Kernel Graph Embedding And Auditory Model, Xinzhou Xu, Xinwei Luo, Chen Wu, Li Zhao

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Fgmos-Based Differential Difference Cccii And Its Applications, Ökkeş Gökalp Sökmen, Sezai̇ Alper Teki̇n, Hamdi̇ Ercan, Mustafa Alçi Jan 2016

Fgmos-Based Differential Difference Cccii And Its Applications, Ökkeş Gökalp Sökmen, Sezai̇ Alper Teki̇n, Hamdi̇ Ercan, Mustafa Alçi

Turkish Journal of Electrical Engineering and Computer Sciences

controlled current conveyor (DDCCC) is proposed in this paper. Major advantages of the FGMOS-based DDCCC are low power dissipation and simplicity. The proposed circuit is designed using only 14 MOS transistors. The total power dissipation of the proposed circuit is equal to 7.38 $\mu $W. The other advantage of this circuit is that intrinsic resistance seen at port X of the DDCCC can easily be tuned by a biasing current. The tuning range of the intrinsic resistance is rather wide. Additionally, a current controlled universal filter and tunable positive and negative active resistors are presented as applications of the proposed …

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A New Abc-Based Multiobjective Optimization Algorithm With An Improvement Approach (Ibmo: Improved Bee Colony Algorithm For Multiobjective Optimization), Tahi̇r Sağ, Mehmet Çunkaş Jan 2016

A New Abc-Based Multiobjective Optimization Algorithm With An Improvement Approach (Ibmo: Improved Bee Colony Algorithm For Multiobjective Optimization), Tahi̇r Sağ, Mehmet Çunkaş

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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A New Wideband Electronically Tunable Grounded Resistor Employing Only Three Mos Transistors, Erkan Yuce, Sezai̇ Tokat, Firat Yücel Jan 2016

A New Wideband Electronically Tunable Grounded Resistor Employing Only Three Mos Transistors, Erkan Yuce, Sezai̇ Tokat, Firat Yücel

Turkish Journal of Electrical Engineering and Computer Sciences

\vs{-1mm}

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An Adaptive Fuzzy Pi Controlled Bus Quantity Enhancer For Wave Energy Systems, Emre Özkop, Adel Sharaf, İsmai̇l Hakki Altaş Jan 2016

An Adaptive Fuzzy Pi Controlled Bus Quantity Enhancer For Wave Energy Systems, Emre Özkop, Adel Sharaf, İsmai̇l Hakki Altaş

Turkish Journal of Electrical Engineering and Computer Sciences

(AFPIC) for a flexible AC transmission system (FACTS)-based dynamic power filter (DPF) to be used in wave energy conversion systems. The new FACTS device stabilizes the DC-common bus voltage, reduces quality of power troubles, and enhances energy utilization by acting as a bus quantity enhancer (BQE). The design and realization of the proposed FACTS-based DPF and efficient control schemes are fully studied. To validate the efficiency of the proposed BQE FACTS device, a digital simulation model and a laboratory test system are developed in the MATLAB/Simulink/Simpower software environment for comparison. Various experimental test models of the proposed BQE system and …

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Design Of Fir Filters Using Exponential--Hamming Window Family, Kemal Avci̇ Jan 2016

Design Of Fir Filters Using Exponential--Hamming Window Family, Kemal Avci̇

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Content-Based Texture Image Retrieval By Histogram Of Curvelets, Erkan Uslu, Songül Albayrak Jan 2016

Content-Based Texture Image Retrieval By Histogram Of Curvelets, Erkan Uslu, Songül Albayrak

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Shunt Active Power Filter Control For Compensating Current Power Quality Problems In Three-Phase Three-Wire Systems Based On An Adaptive Notch Filter, Seyed Hossein Tabatabaei, Mehran Moslehi Bajestan, Alireza Jalilian Jan 2016

Shunt Active Power Filter Control For Compensating Current Power Quality Problems In Three-Phase Three-Wire Systems Based On An Adaptive Notch Filter, Seyed Hossein Tabatabaei, Mehran Moslehi Bajestan, Alireza Jalilian

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Impact Of Statcom And Sssc On Synchronous Generator Loe Protection, Amir Ghorbani, Babak Mozafari, Soodabeh Soleymani, Ali Mohammad Ranjbar Jan 2016

Impact Of Statcom And Sssc On Synchronous Generator Loe Protection, Amir Ghorbani, Babak Mozafari, Soodabeh Soleymani, Ali Mohammad Ranjbar

Turkish Journal of Electrical Engineering and Computer Sciences

of synchronous generators. Nowadays, application of an impedance relay with two negative offset operation zones to protect LOE is prevalent; this relay measures the output voltage and current of generator to detect LOE. On the other hand, utilization of flexible AC transmission systems (FACTS) devices in power systems for different applications is soaring; these devices cause changes in voltage and current signals in the utilized power system. Therefore, this paper is dedicated to investigate the amounts of changes in the current and voltage signals measured by the LOE relay when the static synchronous compensator (STATCOM) and static synchronous series compensator …

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Design And Manufacture Of Tds Measurement And Control System For Water Purification In Reverse Osmosis By Pid Fuzzy Logic Controller With The Ability To Compensate Effects Of Temperature On Measurement, Seyed Kamaleddin Mousavi Mashhadi, Hamid Yadollahi, Abbas Marvian Mashhad Jan 2016

Design And Manufacture Of Tds Measurement And Control System For Water Purification In Reverse Osmosis By Pid Fuzzy Logic Controller With The Ability To Compensate Effects Of Temperature On Measurement, Seyed Kamaleddin Mousavi Mashhadi, Hamid Yadollahi, Abbas Marvian Mashhad

Turkish Journal of Electrical Engineering and Computer Sciences

of water has significant importance for industry, agriculture, livestock, and health. The system designed and manufactured in this paper measures, displays, and controls the TDS of water by installation on domestic and industrial purification systems. Technology of manufacturing the TDS measurement system is such that it can compensate for the adverse effect of temperature. Calibration of the measurement system will be explained here by discussion of several examinations conducted at the Research Institute of Food Science and Technology of Iran. In order to control TDS, a mathematical model for domestic water purification devices of reverse osmosis (RO) is obtained using …

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Fast Measurement Of Headlamps By Means Of A Developed Fuzzy Luxmeter Based On A Fuzzy Mapping Algorithm, Mustafa Şi̇nasi̇ Ayas, İsmai̇l Hakki Altaş, Turhan Alçeli̇k Jan 2016

Fast Measurement Of Headlamps By Means Of A Developed Fuzzy Luxmeter Based On A Fuzzy Mapping Algorithm, Mustafa Şi̇nasi̇ Ayas, İsmai̇l Hakki Altaş, Turhan Alçeli̇k

Turkish Journal of Electrical Engineering and Computer Sciences

headlamps in the dark is inferable from the results of studies. Various regulations are available in order to arrange the required illuminance values at certain positions on the road. The designed and produced headlamps have to satisfy the requirements of these regulations. Manual measurement tools, such as the luxmeter (which are based on point-by-point measurements), have traditionally been used. This traditional way has been considered inefficient in terms of awkward setup procedures, complexity, the continuous intervention of human operators, and costs. In this study, in order to overcome these problems, a new approach for measuring the illuminance values is proposed. …

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Abnormal Event Detection In Crowded Scenes Via Bag-Of-Atomic-Events-Based Topic Model, Xing Hu, Shiqiang Hu, Lingkun Luo, Guoxiang Li Jan 2016

Abnormal Event Detection In Crowded Scenes Via Bag-Of-Atomic-Events-Based Topic Model, Xing Hu, Shiqiang Hu, Lingkun Luo, Guoxiang Li

Turkish Journal of Electrical Engineering and Computer Sciences

crowded scenes. A new concept of atomic event is introduced into this framework, which is the basic component of video events. Different from previous bag-of-words (BoW) modeling-based methods that represent feature descriptors using only one code word, a feature descriptor is represented using a few more atomic events in bag-of-atomic-events (BoAE) modeling. Consequently, the approximation error is reduced by using the obtained BoAE representation. In the context of abnormal event detection, BoAE representation is more suitable to describe abnormal events than BoW representation, because the abnormal event may not correspond to any code word in BoW modeling. Fast latent Dirichlet …

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Relay Sliding Mode Control Based On The Input-Output Model, Şölen Kumbay Yildiz, Hüseyi̇n Demi̇rci̇oğlu Jan 2016

Relay Sliding Mode Control Based On The Input-Output Model, Şölen Kumbay Yildiz, Hüseyi̇n Demi̇rci̇oğlu

Turkish Journal of Electrical Engineering and Computer Sciences

In this study, the relay sliding mode control method based on the input-output model proposed in previous studies is revisited. Sliding conditions under ideal operating conditions are reformulated to fortify the theoretical background. Some additional issues, namely the effects of disturbances and measurement noise on the sliding mode conditions, are addressed and analyzed in detail. Finally, the theoretical results are put to the test by detailed simulation examples.

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Energy Optimization In Wireless Sensor Networks Using A Hybrid K-Means Pso Clustering Algorithm, Basma Solaiman Jan 2016

Energy Optimization In Wireless Sensor Networks Using A Hybrid K-Means Pso Clustering Algorithm, Basma Solaiman

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

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Novel, Graded, Priority-Oriented Admission Control In Mobile Networks, Siddu Payappa Algur, Niharika Kumar Jan 2016

Novel, Graded, Priority-Oriented Admission Control In Mobile Networks, Siddu Payappa Algur, Niharika Kumar

Turkish Journal of Electrical Engineering and Computer Sciences

to the different services in mobile broadband networks (WiMAX, LTE). A new connection is admitted only when the network can support the QoS needs of the connection without degrading the QoS for existing connections. An efficient call admission control algorithm ensures higher throughput and fewer delays for the admitted connections. In this paper a graded priority-based call admission control algorithm is proposed for LTE and WiMAX networks. The number of permissible connections shall be segregated into two classes. The new connection shall be graded, prioritized, and admitted based on the device requesting the connection. Simulation results show that graded priority-based …

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