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  Subjects -> ELECTRONICS (Total: 207 journals)
Showing 1 - 200 of 277 Journals sorted alphabetically
ACS Applied Electronic Materials     Open Access   (Followers: 1)
Acta Electronica Malaysia     Open Access  
Advanced Materials Technologies     Hybrid Journal   (Followers: 2)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 6)
Advances in Electrical and Electronic Engineering     Open Access   (Followers: 5)
Advances in Electronics     Open Access   (Followers: 122)
Advances in Microelectronic Engineering     Open Access   (Followers: 12)
Advances in Power Electronics     Open Access   (Followers: 56)
Advancing Microelectronics     Hybrid Journal   (Followers: 2)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 26)
Annals of Telecommunications     Hybrid Journal   (Followers: 6)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 8)
Archives of Electrical Engineering     Open Access   (Followers: 14)
Australian Journal of Electrical and Electronics Engineering     Hybrid Journal  
Automatika : Journal for Control, Measurement, Electronics, Computing and Communications     Open Access  
Batteries     Open Access   (Followers: 8)
Batteries & Supercaps     Hybrid Journal   (Followers: 5)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 27)
Bioelectronics in Medicine     Hybrid Journal  
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 50)
China Communications     Full-text available via subscription   (Followers: 8)
Chinese Journal of Electronics     Open Access  
Circuits and Systems     Open Access   (Followers: 16)
Control Systems     Hybrid Journal   (Followers: 238)
e-Prime : Advances in Electrical Engineering, Electronics and Energy     Open Access   (Followers: 2)
ECTI Transactions on Electrical Engineering, Electronics, and Communications     Open Access   (Followers: 1)
Edu Elektrika Journal     Open Access   (Followers: 1)
Electronic Design     Partially Free   (Followers: 125)
Electronic Markets     Hybrid Journal   (Followers: 6)
Electronic Materials Letters     Hybrid Journal   (Followers: 4)
Electronics     Open Access   (Followers: 125)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 8)
Electronics For You     Partially Free   (Followers: 114)
Electronics Letters     Open Access   (Followers: 25)
Elektronika ir Elektortechnika     Open Access  
Elkha : Jurnal Teknik Elektro     Open Access  
Emitor : Jurnal Teknik Elektro     Open Access  
Energy Storage     Hybrid Journal   (Followers: 2)
Energy Storage Materials     Full-text available via subscription   (Followers: 5)
EPE Journal : European Power Electronics and Drives     Hybrid Journal   (Followers: 3)
EPJ Quantum Technology     Open Access   (Followers: 2)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Foundations and Trends® in Signal Processing     Full-text available via subscription   (Followers: 7)
Frontiers in Electronics     Open Access   (Followers: 1)
Frontiers of Optoelectronics     Hybrid Journal   (Followers: 1)
IACR Transactions on Symmetric Cryptology     Open Access  
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 112)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 88)
IEEE Embedded Systems Letters     Hybrid Journal   (Followers: 60)
IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology     Hybrid Journal  
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 52)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 8)
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits     Hybrid Journal   (Followers: 2)
IEEE Letters on Electromagnetic Compatibility Practice and Applications     Hybrid Journal   (Followers: 1)
IEEE Magnetics Letters     Hybrid Journal   (Followers: 7)
IEEE Nanotechnology Magazine     Hybrid Journal   (Followers: 45)
IEEE Open Journal of Circuits and Systems     Open Access  
IEEE Open Journal of Industry Applications     Open Access  
IEEE Open Journal of the Industrial Electronics Society     Open Access  
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 90)
IEEE Pulse     Hybrid Journal   (Followers: 5)
IEEE Reviews in Biomedical Engineering     Hybrid Journal   (Followers: 19)
IEEE Solid-State Circuits Letters     Hybrid Journal  
IEEE Solid-State Circuits Magazine     Hybrid Journal   (Followers: 11)
IEEE Transactions on Aerospace and Electronic Systems     Hybrid Journal   (Followers: 283)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 79)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 65)
IEEE Transactions on Autonomous Mental Development     Hybrid Journal   (Followers: 8)
IEEE Transactions on Biomedical Engineering     Hybrid Journal   (Followers: 35)
IEEE Transactions on Broadcasting     Hybrid Journal   (Followers: 11)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 31)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 45)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 18)
IEEE Transactions on Geoscience and Remote Sensing     Hybrid Journal   (Followers: 174)
IEEE Transactions on Haptics     Hybrid Journal   (Followers: 4)
IEEE Transactions on Industrial Electronics     Hybrid Journal   (Followers: 85)
IEEE Transactions on Industry Applications     Hybrid Journal   (Followers: 57)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 27)
IEEE Transactions on Learning Technologies     Full-text available via subscription   (Followers: 12)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 87)
IEEE Transactions on Services Computing     Hybrid Journal   (Followers: 5)
IEEE Transactions on Signal and Information Processing over Networks     Hybrid Journal   (Followers: 14)
IEEE Transactions on Software Engineering     Hybrid Journal   (Followers: 84)
IEEE Women in Engineering Magazine     Hybrid Journal   (Followers: 11)
IEEE/OSA Journal of Optical Communications and Networking     Hybrid Journal   (Followers: 19)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 11)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (Followers: 5)
IET Cyber-Physical Systems : Theory & Applications     Open Access   (Followers: 1)
IET Energy Systems Integration     Open Access   (Followers: 1)
IET Microwaves, Antennas & Propagation     Open Access   (Followers: 35)
IET Nanodielectrics     Open Access  
IET Power Electronics     Open Access   (Followers: 76)
IET Smart Grid     Open Access   (Followers: 2)
IET Wireless Sensor Systems     Open Access   (Followers: 17)
IETE Journal of Education     Open Access   (Followers: 3)
IETE Journal of Research     Open Access   (Followers: 10)
IETE Technical Review     Open Access   (Followers: 9)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Industrial Technology Research Journal Phranakhon Rajabhat University     Open Access  
Informatik-Spektrum     Hybrid Journal   (Followers: 3)
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 12)
International Journal of Advanced Electronics and Communication Systems     Open Access   (Followers: 10)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (Followers: 14)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 12)
International Journal of Aerospace Innovations     Full-text available via subscription   (Followers: 23)
International Journal of Antennas and Propagation     Open Access   (Followers: 10)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 3)
International Journal of Computational Vision and Robotics     Hybrid Journal   (Followers: 5)
International Journal of Control     Hybrid Journal   (Followers: 13)
International Journal of Electronics     Hybrid Journal   (Followers: 7)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 8)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (Followers: 1)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Hybrid Intelligence     Hybrid Journal   (Followers: 1)
International Journal of Image, Graphics and Signal Processing     Open Access   (Followers: 22)
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 16)
International Journal of Nanoscience     Hybrid Journal  
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields     Hybrid Journal   (Followers: 4)
International Journal of Power Electronics     Hybrid Journal   (Followers: 30)
International Journal of Review in Electronics & Communication Engineering     Open Access   (Followers: 2)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (Followers: 13)
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 6)
International Journal of Wireless and Microwave Technologies     Open Access   (Followers: 12)
International Transaction of Electrical and Computer Engineers System     Open Access   (Followers: 2)
JAREE (Journal on Advanced Research in Electrical Engineering)     Open Access  
Journal of Biosensors & Bioelectronics     Open Access   (Followers: 4)
Journal of Advanced Dielectrics     Open Access   (Followers: 1)
Journal of Artificial Intelligence     Open Access   (Followers: 18)
Journal of Circuits, Systems, and Computers     Hybrid Journal   (Followers: 4)
Journal of Computational Intelligence and Electronic Systems     Full-text available via subscription   (Followers: 1)
Journal of Electrical and Electronics Engineering Research     Open Access   (Followers: 41)
Journal of Electrical Engineering & Electronic Technology     Hybrid Journal   (Followers: 4)
Journal of Electromagnetic Analysis and Applications     Open Access   (Followers: 6)
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (Followers: 10)
Journal of Electronic Science and Technology     Open Access  
Journal of Electronics (China)     Hybrid Journal   (Followers: 5)
Journal of Energy Storage     Full-text available via subscription   (Followers: 4)
Journal of Engineered Fibers and Fabrics     Open Access  
Journal of Field Robotics     Hybrid Journal   (Followers: 5)
Journal of Guidance, Control, and Dynamics     Hybrid Journal   (Followers: 167)
Journal of Information and Telecommunication     Open Access   (Followers: 2)
Journal of Intelligent Procedures in Electrical Technology     Open Access   (Followers: 2)
Journal of Low Power Electronics     Full-text available via subscription   (Followers: 14)
Journal of Low Power Electronics and Applications     Open Access   (Followers: 9)
Journal of Microelectronics and Electronic Packaging     Hybrid Journal   (Followers: 2)
Journal of Microwave Power and Electromagnetic Energy     Hybrid Journal   (Followers: 8)
Journal of Nuclear Cardiology     Hybrid Journal   (Followers: 1)
Journal of Optoelectronics Engineering     Open Access   (Followers: 4)
Journal of Power Electronics     Hybrid Journal   (Followers: 8)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 19)
Journal of Sensors     Open Access   (Followers: 25)
Jurnal Rekayasa Elektrika     Open Access  
Jurnal Teknik Elektro     Open Access  
Jurnal Teknologi Elektro     Open Access  
Kinetik : Game Technology, Information System, Computer Network, Computing, Electronics, and Control     Open Access   (Followers: 5)
Machine Learning with Applications     Full-text available via subscription   (Followers: 3)
Majalah Ilmiah Teknologi Elektro : Journal of Electrical Technology     Open Access   (Followers: 1)
Metrology and Measurement Systems     Open Access   (Followers: 8)
Microelectronics and Solid State Electronics     Open Access   (Followers: 27)
Nanotechnology, Science and Applications     Open Access   (Followers: 7)
Nature Electronics     Hybrid Journal   (Followers: 3)
Networks: an International Journal     Hybrid Journal   (Followers: 4)
npj Flexible Electronics     Open Access  
Open Electrical & Electronic Engineering Journal     Open Access   (Followers: 1)
Open Journal of Antennas and Propagation     Open Access   (Followers: 8)
Power Electronics and Drives     Open Access   (Followers: 2)
Problemy Peredachi Informatsii     Full-text available via subscription  
Progress in Quantum Electronics     Full-text available via subscription   (Followers: 8)
Radiophysics and Quantum Electronics     Hybrid Journal   (Followers: 2)
Research & Reviews : Journal of Embedded System & Applications     Full-text available via subscription   (Followers: 6)
Security and Communication Networks     Hybrid Journal   (Followers: 2)
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 62)
Semiconductors and Semimetals     Full-text available via subscription   (Followers: 1)
Sensing and Imaging : An International Journal     Hybrid Journal   (Followers: 2)
Sensors International     Open Access   (Followers: 3)
Solid State Electronics Letters     Open Access  
Solid-State Electronics     Hybrid Journal   (Followers: 7)
Superconductivity     Full-text available via subscription   (Followers: 4)
Synthesis Lectures on Power Electronics     Full-text available via subscription   (Followers: 4)
Technical Report Electronics and Computer Engineering     Open Access  
Telematique     Open Access  
TELKOMNIKA (Telecommunication, Computing, Electronics and Control)     Open Access   (Followers: 2)
Transactions on Cryptographic Hardware and Embedded Systems     Open Access   (Followers: 1)
Transactions on Electrical and Electronic Materials     Hybrid Journal   (Followers: 2)
Universal Journal of Electrical and Electronic Engineering     Open Access   (Followers: 7)
Ural Radio Engineering Journal     Open Access   (Followers: 1)
Visión Electrónica : algo más que un estado sólido     Open Access  
Wireless and Mobile Technologies     Open Access   (Followers: 4)
Електротехніка і Електромеханіка     Open Access   (Followers: 1)

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Journal Cover
ECTI Transactions on Electrical Engineering, Electronics, and Communications
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Online) 1685-9545
Published by ECTI Association Homepage  [1 journal]
  • Reducing Packet-In Messages in OpenFlow Networks

    • Authors: Chit Su Khin, Aye Thandar Kyaw, Myo Myint Maw, May Zin Oo
      Pages: 1 - 9
      Abstract: In OpenFlow networks, several packet-in traffic messages are sent to the controller to request routes from any switch on the network. Executing these packet-in messages and replying to control messages may interfere with the controller performance. Therefore, a mechanism for lightening the load on the controller by reducing packet-in traffic between the controller and the switch is proposed in this research. The proposed system operates by responding to the two flow entries for each request and removing packet-in messages from some unused multicast traffic. The proposed system can thus not only avoid a third packet-in message but also some multicast packet-in traffic, thereby reducing the load and traffic in the network as well as packet loss. According to the evaluation results, the proposed system can improve network performance by significantly reducing packet-in overhead.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.244944
      Issue No: Vol. 20, No. 1 (2022)
       
  • Associated Sectors of Magnetic Recording Systems Using Spatially Coupled
           LDPC Codes

    • Authors: Sirawit Khittiwitchayakul, Watid Phakphisut, Pornchai Supnithi
      Pages: 10 - 21
      Abstract: In traditional magnetic recording systems, non-associated sectors are mainly adopted, whereby two consecutive sectors are decoded independently by the low-density parity-check (LDPC) codes. In this paper, we propose a magnetic recording system with associated sectors, constructed using spatially coupled low-density parity-check (SC-LDPC) codes. If the SC-LDPC decoder cannot correct the erroneous bits in the current sector, it can request information stored in previous sectors to improve decoding performance. Moreover, we modify protograph-based extrinsic information transfer (P-EXIT) charts to examine the theoretical performance of SC-LDPC codes applied to both non-associated and associated sectors. Our theoretical results show that the associated sectors achieve significant performance gains compared to the traditional non-associated sectors.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246094
      Issue No: Vol. 20, No. 1 (2022)
       
  • Energy-Saving in Air Conditioners Using PLC Control and the SCADA
           Monitoring System

    • Authors: Waluyo Waluyo, Andre Widura, Wahyu Agung Purbandoko
      Pages: 22 - 31
      Abstract: The promotion of energy-saving air conditioners (ACs) continues to increase. Therefore, this research proposes the implementation of automatic control and monitoring for AC fan evaporator and compressor speeds using a programmable logic controller (PLC) along with supervisory control and data acquisition (SCADA). The proposed system uses a room-temperature sensor, connected to the PLC and programmed with a ladder diagram. It is connected to a SCADA installed computer for monitoring and data logging. The testing involves three methods: conventional, manual, and automatic PLC-based. Over a four-week period, the conventional method consumed 193.6 kW⋅h, 198.7 kW⋅h, and 206.6 kW⋅h in energy, while the manual method consumed 160.5 kW⋅h, 160.1 kW⋅h, and 161.9 kW⋅h, and the automatic method 150.8 kW⋅h, 152.6 kW⋅h, and 154.8 kW⋅h using the trapezoidal composite rule, Simpson's composite rule, and ordinary methods, respectively. The main research contribution is the provision of an energy-saving system for air conditioners over a long duration using PLC. The PLC-based automatic-to-manual energy savings equate to 6.0%, 5.8%, and 4.4%; whereas 22.0%, 24.0%, and 25.0% for the PLC-based automatic-to-conventional method. Therefore, the PLC-based automatic control is deemed appropriate for electrical energy-saving.
      PubDate: 2022-02-18
      DOI: 10.37936/ectieec.2022201.246095
      Issue No: Vol. 20, No. 1 (2022)
       
  • Geometrical Variation of a Conductive Filament in RRAM and Its Impact on a
           Single-Event Upset

    • Authors: Vijay H. M., V. N. Ramakrishnan
      Pages: 32 - 38
      Abstract: Resistive random access memory (RRAM) is a promising candidate for industry and academia from the research and development perspective. The resistance of RRAM depends on the geometrical dimensions, growth, and rupture of the conductive filament. In this work, the geometrical dimensions such as the length and width of the filament are varied to analyze the resistance. Moreover, the RRAM can be used in aerospace applications. Therefore, the impact of a single-event upset on resistance of RRAM is investigated by means of a double exponential current pulse. The performance of the device is compared in terms of resistance before and after irradiation. A decrease in its original resistance has been observed after radiation.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246101
      Issue No: Vol. 20, No. 1 (2022)
       
  • Fuzzy Logic Control Using SVPWM to Enhance the Control of the DFIG Driven
           by a Wind Turbine

    • Authors: Abdelhalim Arif, Youcef Bekakra, Djilani Ben Attous
      Pages: 39 - 50
      Abstract: The Fuzzy Logic Controller (FLC) is applied in this paper to enhance the control of a doubly fed induction generator (DFIG) driven by a wind turbine (WT) with the space vector pulse width modulation (SVPWM) inverter. The proposed model is then compared to a classical pulse width modulation (PWM) inverter to improve the quality of the generated energy. The simulation results of these two techniques are presented under MATLAB/Simulink. The results show that FLC-SVPWM gives a lower value for total harmonic distortion (THD) of the stator current as well as reduced ripples of active and reactive powers compared to the FLC-PWM.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.241670
      Issue No: Vol. 20, No. 1 (2022)
       
  • Effect of Slot-Pole Numbers on the Performance of a BLDC Motor for Agro-EV
           Application

    • Authors: Muhammad Izanie Kahar, Raja Nor Firdaus Kashfi Raja Othman, Aziah Khamis, Nurfaezah Abdullah, Fairul Azhar Abdul Shukor, Lim Seng Tat
      Pages: 51 - 61
      Abstract: This paper analyzes the performance of a brushless direct current (BLDC) motor for agro electric vehicle (agro-EV) applications. Agro-EV technology is being developed in response to increasing environmental pollution. Various types of electric motors are in agro-EV, one of which is the BLDC. With its good capabilities, it has been chosen for further exploration in this research. On the other hand, some issues limit the usage of the conventional BLDC motor in heavy applications, such as low torque performance caused by weak magnetic energy. Therefore, this research aims to analyze the effect of magnetic energy based on slot-pole combinations to evaluate the BLDC motor's performance. Three BLDC models with different slot-pole numbers are designed and simulated using a fixed structure size, permanent magnet volume, and magnetomotive force (MMF). Finite element method (FEM) software known as Altair Flux 2D is used to compute the cogging torque, back-electromotive force (BEMF), magnetic flux density, and the torque produced. As a result, an 18/20 slot-pole was chosen for its high torque (105 Nm) and BEMF (35.9 V). In conclusion, this research simulation presents guidelines and an overview regarding the effect of slot-pole numbers on the performance of the BLDC motor for agro-EV applications.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246104
      Issue No: Vol. 20, No. 1 (2022)
       
  • Construction and Characterization of Optical Orthogonal Codes (n,w,1) for
           Fast Frequency Hopping-Optical Code Division Multiple Access

    • Authors: Samuel Nlend, Theo G. Swart
      Pages: 62 - 73
      Abstract: This paper investigates a new combinatorial construction approach based on cyclic difference packings for the construction of an optical orthogonal code that is suitable as a time spreading sequence for fast frequency hopping optical code division multiple access (OCDM) systems. The proposed construction provides a solution to the electrical decoding delay problem when compared to its optical counterpart, as well as other optimization issues. The criteria for optimizing the performance of such an OCDMA system are provided, namely: the flexibility and simplicity in constructing the optimal code for any length and weight, a reduction in the encoding/decoding complexity that complies with changes in the fast frequency hopping system, and the provision of system transfer transparency, a decoding rule that exploits the embedded asymmetric error correcting capability of the code. Our neighbor difference approach refers to the partition of different solutions into sub-classes, given in the correlation matrix form. It takes into account both direct and recursive combinatorial code construction methods, and the resulting characteristics are evaluated accordingly. A performance analysis based on the OCDMA channel is given, and a comparison with other difference family solutions is performed.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246105
      Issue No: Vol. 20, No. 1 (2022)
       
  • Channel Estimation and Equalization Using FIM for MIMO-OFDM on Doubly
           Selective Faded Noisy Channels

    • Authors: Balajee Sharma, Virendra Singh Chaudhary
      Pages: 74 - 82
      Abstract: Orthogonal frequency division multiplexing (OFDM) plays an important role in wireless communication due to its high transmission rate. Information is conveyed across spatial and temporal dimensions through the space-time shift keying (STSK) technique which is basically used to handle multiplexing diversity and gains. On the other hand, index modulation integrated OFDM not only communicates information through conventional signal constellations as in classical OFDM, but also through indexes of the subcarriers. In index modulation, the subcarriers are transmitted over a particular index and can be implemented effectively. The active indices are selected and further information bits transmitted. In this paper, to handle such limitations, the deep neural network (DNN) has been proposed for end-to-end performance. Under the noisy and faded channel scenario, channel state information must be acquired to recover the transmitted signal correctly. To evaluate the channel distortion level, a deep learning model is trained offline from simulated data and then applied to online data to estimate and recover the channel state as well as the transmitted signal, respectively, in comparison to the traditional least minimum mean square error (LMMSE) channel estimation technique. The analysis results demonstrate superiority over the conventional LMMSE for channel estimation and signal detection in wireless communications with complex channel distortion and interference. The mean square error (MSE) is evaluated for carrying out performance information in each subcarrier block and to reduce the detector error rate.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246107
      Issue No: Vol. 20, No. 1 (2022)
       
  • A 10 kW Inductive Wireless Power Transfer Prototype for EV Charging in
           Thailand

    • Authors: Jutturit Thongpron, Wuttikai Tammawan, Teerasak Somsak, Wiwat Tippachon, Kosol Oranpiroj, Ekkachai Chaidee, Anon Namin
      Pages: 83 - 95
      Abstract: The electric vehicle (EV) market is rising despite the COVID-19 pandemic in Thailand and the rest of the world. The Energy Policy and Planning Office, Ministry of Energy, is supporting the development of EV charging stations in Thailand. However, recent research published by Thais on the subject does not involve more than 1.24 kW wireless power transfer (WPT), whereas commercial EVs need at least 3.5 kW charging facilities. This study aims to develop a 10 kW WPT for EV charging in Thailand. The experimental procedure firstly required the design of block ferrite EE55 cores. Secondly, the transmitter and receiver coils were constructed from homemade Litz wire. Thirdly, the prototype magnetic parameters were measured and simulated. A 10 kW high-frequency inverter was then built and tested. The 10 kW prototype IPT system was subsequently simulated, constructed, and characterized. The results revealed that when the prototype IPT system was applied to the resistive tungsten halogen load during the first stage of the research, at 369.4 V DC input voltage and 32.33 A DC input current, the DC output voltage, and currents were 362.4 V and 29.67 A, respectively, while the maximum DC output power and the dc-to-dc efficiency equated to 10.75 kW and 90.00%, respectively.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246108
      Issue No: Vol. 20, No. 1 (2022)
       
  • Comparative Clearing Approaches in the Local Energy Market Based on the
           Prosumer Case Study

    • Authors: Paramet Wirasanti, Phittawat Yotha
      Pages: 96 - 104
      Abstract: In general, the clearing method in the local energy market is introduced based on two well-known methods: auction-based and game theory. However, both methods focus on different aspects; the auction-based method is based on economic equilibrium, whereas game theory is based on the concept of maximum profit. Therefore, to clarify the difference, the processes and algorithms of both methods are discussed and compared in this paper. In this study, the prosumer case study based on the non-cooperative day-ahead market is used to compare both methods. The prosumer is a good case because, as the lowest unit in the local market, it can apply to either seller or buyer. According to the case study, the comparative results focus on the difference between the local price and retail price, and the allocated energy quantity. The findings from the comparative results will advise the market operator on the most appropriate clearing method and market player for the bidding strategy design.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246109
      Issue No: Vol. 20, No. 1 (2022)
       
  • Application of Frequency Control Techniques for Hot Tensile Testing in
           Induction Heating

    • Authors: Saichol Chudjuarjeen, Nathabhat Phankong
      Pages: 105 - 113
      Abstract: This paper proposes the frequency control technique using a half-bridge resonance inverter for hot tensile testing in induction heating. The technique involves power regulation, high frequency pulse, frequency adjustment, and pulse generator controller based on the dsPIC33FJ16GS404 chip IC. Significantly, the inverter is controlled by two sections. Throughout the heating cycle, the first controller retains the inverter's operating frequency slightly above the resonant frequency, while the second keeps the phase angle of the current and voltage output in check to control the output power at a level suitable for changes in the tensile parameter workpieces. As a result, the inverter improves the efficiency of the prototype, which has 1.5 kW input power. Furthermore, it can heat three different sizes of steel workpieces for hot tensile testing, with diameters of approximately 3, 5, and 10 mm and lengths of approximately 50 and 70 mm, respectively.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246110
      Issue No: Vol. 20, No. 1 (2022)
       
  • A Photovoltaic Cell Energy Transfer System Using Series-Connected
           Bidirectional Resonant Converters

    • Authors: Nathabhat Phankong, Saichol Chudjuarjeen
      Pages: 114 - 122
      Abstract: This paper presents an energy transfer system for a photovoltaic module with solar-powered panels, batteries, and a grid-tie inverter that uses series-connected bidirectional resonant converters. The purpose of this study is to investigate the asymmetrical duty cycle control and frequency control techniques for increasing and controlling the input voltage of the grid-tie inverter. Prior to the experiment, the performance of the bidirectional resonant converters was evaluated using a simulation program. By adjusting the asymmetrical duty cycle by 50%, the input voltage of the grid inverter was found to be 48.2 V. However, by adjusting the asymmetrical duty cycle by 10%, the input voltage of the grid inverter was 150.4 V. Furthermore, when turning on the switch in the zero-voltage switching (ZVS) mode, the converter circuit was controlled and operated within an appropriate frequency range. The results revealed no switching losses when the converters were turned on. As a result, the bidirectional resonant converters were able to properly transfer energy and regulate the input voltage of the grid inverter.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246112
      Issue No: Vol. 20, No. 1 (2022)
       
  • A Phase Lead-Lag Synchronous Reference Frame Phase-locked loop for Grid
           Synchronization of a Single-Phase Inverter

    • Authors: Chuttchaval Jeraputra, Jetnarong Pongpaiboon, Thamvarit Singhavilai, Supun Tiptipakorn
      Pages: 123 - 132
      Abstract: In this study, a phase lead-lag synchronous reference frame phase-locked loop (SRF-PLL) is proposed for the grid connection of a single-phase inverter. A tuned filter is employed to enable the phase of the input voltage to be advanced or delayed by ±45 degrees with respect to the grid voltage. The generated orthogonal signals are fed into Park's transformation. Only the quadrature-phase signal is regulated to zero using a PI controller. Its output determines the estimated frequency. The phase angle is obtained by integrating the estimated frequency. The linearized model of the proposed SRF-PLL is developed and stability analysis is discussed. The viability of the proposed method is tested under computer simulation using MATLAB/Simulink. The method is then implemented on a 32-bit microcontroller and tested with a programmable AC source. The results positively confirm the effectiveness of the method.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246117
      Issue No: Vol. 20, No. 1 (2022)
       
  • Three-Phase Inverter with Direct Torque Control for a Brushless DC Motor

    • Authors: Sirichai Dangeam
      Pages: 133 - 142
      Abstract: This paper presents the implementation of a three-leg voltage source inverter fed by a brushless DC motor. The open-loop speed control with direct torque is employed in this motor. The rotation of the motor is controlled by using an optimal voltage vector which is related to the calculation of stator flux and electromechanical torque. The experimental results show that this system has greater capability to reduce spike and ripple on the voltage, current, stator flux, and electromechanical torque than the conventional speed controller which feeds the voltage vector from the hall-effect sensors.
      PubDate: 2022-02-18
      DOI: 10.37936/ecti-eec.2022201.246118
      Issue No: Vol. 20, No. 1 (2022)
       
 
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