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  Subjects -> ELECTRONICS (Total: 194 journals)
Showing 1 - 200 of 277 Journals sorted alphabetically
Acta Electronica Malaysia     Open Access  
Advanced Materials Technologies     Hybrid Journal  
Advances in Electrical and Electronic Engineering     Open Access   (Followers: 9)
Advances in Electronics     Open Access   (Followers: 94)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Power Electronics     Open Access   (Followers: 39)
Advancing Microelectronics     Hybrid Journal  
Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (Followers: 352)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 28)
Annals of Telecommunications     Hybrid Journal   (Followers: 9)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 9)
Archives of Electrical Engineering     Open Access   (Followers: 15)
Australian Journal of Electrical and Electronics Engineering     Hybrid Journal  
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 8)
Batteries     Open Access   (Followers: 7)
Batteries & Supercaps     Hybrid Journal   (Followers: 3)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 31)
Bioelectronics in Medicine     Hybrid Journal  
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 22)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 38)
Biomedical Instrumentation & Technology     Hybrid Journal   (Followers: 6)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 13)
BULLETIN of National Technical University of Ukraine. Series RADIOTECHNIQUE. RADIOAPPARATUS BUILDING     Open Access   (Followers: 2)
Bulletin of the Polish Academy of Sciences : Technical Sciences     Open Access   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 47)
China Communications     Full-text available via subscription   (Followers: 9)
Chinese Journal of Electronics     Hybrid Journal  
Circuits and Systems     Open Access   (Followers: 15)
Consumer Electronics Times     Open Access   (Followers: 5)
Control Systems     Hybrid Journal   (Followers: 301)
ECTI Transactions on Computer and Information Technology (ECTI-CIT)     Open Access  
ECTI Transactions on Electrical Engineering, Electronics, and Communications     Open Access   (Followers: 2)
Edu Elektrika Journal     Open Access   (Followers: 1)
Electrica     Open Access  
Electronic Design     Partially Free   (Followers: 123)
Electronic Markets     Hybrid Journal   (Followers: 7)
Electronic Materials Letters     Hybrid Journal   (Followers: 4)
Electronics     Open Access   (Followers: 104)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 10)
Electronics For You     Partially Free   (Followers: 103)
Electronics Letters     Hybrid Journal   (Followers: 26)
Elkha : Jurnal Teknik Elektro     Open Access  
Embedded Systems Letters, IEEE     Hybrid Journal   (Followers: 55)
Energy Harvesting and Systems     Hybrid Journal   (Followers: 4)
Energy Storage     Hybrid Journal   (Followers: 1)
Energy Storage Materials     Full-text available via subscription   (Followers: 4)
EPE Journal : European Power Electronics and Drives     Hybrid Journal  
EPJ Quantum Technology     Open Access   (Followers: 1)
EURASIP Journal on Embedded Systems     Open Access   (Followers: 11)
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: 10)
Frequenz     Hybrid Journal   (Followers: 1)
Frontiers of Optoelectronics     Hybrid Journal   (Followers: 1)
Geoscience and Remote Sensing, IEEE Transactions on     Hybrid Journal   (Followers: 218)
Haptics, IEEE Transactions on     Hybrid Journal   (Followers: 4)
IACR Transactions on Symmetric Cryptology     Open Access  
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 100)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 81)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 51)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 9)
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits     Hybrid Journal   (Followers: 1)
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 75)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 73)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 59)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 26)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 44)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 19)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 26)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 78)
IEEE Transactions on Signal and Information Processing over Networks     Full-text available via subscription   (Followers: 14)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 12)
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     Hybrid Journal   (Followers: 35)
IET Nanodielectrics     Open Access  
IET Power Electronics     Hybrid Journal   (Followers: 57)
IET Smart Grid     Open Access   (Followers: 1)
IET Wireless Sensor Systems     Hybrid Journal   (Followers: 18)
IETE Journal of Education     Open Access   (Followers: 4)
IETE Journal of Research     Open Access   (Followers: 11)
IETE Technical Review     Open Access   (Followers: 13)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Industrial Electronics, IEEE Transactions on     Hybrid Journal   (Followers: 74)
Industrial Technology Research Journal Phranakhon Rajabhat University     Open Access  
Industry Applications, IEEE Transactions on     Hybrid Journal   (Followers: 38)
Informatik-Spektrum     Hybrid Journal   (Followers: 2)
Instabilities in Silicon Devices     Full-text available via subscription   (Followers: 1)
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 13)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (Followers: 18)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 12)
International Journal of Antennas and Propagation     Open Access   (Followers: 11)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 4)
International Journal of Computational Vision and Robotics     Hybrid Journal   (Followers: 5)
International Journal of Control     Hybrid Journal   (Followers: 11)
International Journal of Electronics     Hybrid Journal   (Followers: 7)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 13)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (Followers: 3)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Hybrid Intelligence     Hybrid Journal  
International Journal of Image, Graphics and Signal Processing     Open Access   (Followers: 16)
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 10)
International Journal of Nanoscience     Hybrid Journal   (Followers: 1)
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields     Hybrid Journal   (Followers: 4)
International Journal of Power Electronics     Hybrid Journal   (Followers: 25)
International Journal of Review in Electronics & Communication Engineering     Open Access   (Followers: 4)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (Followers: 10)
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 4)
International Journal of Wireless and Microwave Technologies     Open Access   (Followers: 6)
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: 12)
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: 36)
Journal of Electrical Bioimpedance     Open Access  
Journal of Electrical Bioimpedance     Open Access   (Followers: 2)
Journal of Electrical Engineering & Electronic Technology     Hybrid Journal   (Followers: 7)
Journal of Electrical, Electronics and Informatics     Open Access  
Journal of Electromagnetic Analysis and Applications     Open Access   (Followers: 8)
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (Followers: 9)
Journal of Electronic Design Technology     Full-text available via subscription   (Followers: 6)
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   (Followers: 2)
Journal of Field Robotics     Hybrid Journal   (Followers: 3)
Journal of Guidance, Control, and Dynamics     Hybrid Journal   (Followers: 182)
Journal of Information and Telecommunication     Open Access   (Followers: 1)
Journal of Intelligent Procedures in Electrical Technology     Open Access   (Followers: 3)
Journal of Low Power Electronics     Full-text available via subscription   (Followers: 10)
Journal of Low Power Electronics and Applications     Open Access   (Followers: 10)
Journal of Microelectronics and Electronic Packaging     Hybrid Journal  
Journal of Microwave Power and Electromagnetic Energy     Hybrid Journal   (Followers: 3)
Journal of Microwaves, Optoelectronics and Electromagnetic Applications     Open Access   (Followers: 11)
Journal of Nuclear Cardiology     Hybrid Journal  
Journal of Optoelectronics Engineering     Open Access   (Followers: 4)
Journal of Physics B: Atomic, Molecular and Optical Physics     Hybrid Journal   (Followers: 30)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 11)
Journal of Semiconductors     Full-text available via subscription   (Followers: 5)
Journal of Sensors     Open Access   (Followers: 26)
Journal of Signal and Information Processing     Open Access   (Followers: 9)
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer     Open Access  
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  
Learning Technologies, IEEE Transactions on     Hybrid Journal   (Followers: 12)
Magnetics Letters, IEEE     Hybrid Journal   (Followers: 7)
Majalah Ilmiah Teknologi Elektro : Journal of Electrical Technology     Open Access   (Followers: 2)
Metrology and Measurement Systems     Open Access   (Followers: 6)
Microelectronics and Solid State Electronics     Open Access   (Followers: 28)
Nanotechnology Magazine, IEEE     Full-text available via subscription   (Followers: 42)
Nanotechnology, Science and Applications     Open Access   (Followers: 6)
Nature Electronics     Hybrid Journal   (Followers: 1)
Networks: an International Journal     Hybrid Journal   (Followers: 5)
Open Electrical & Electronic Engineering Journal     Open Access  
Open Journal of Antennas and Propagation     Open Access   (Followers: 9)
Optical Communications and Networking, IEEE/OSA Journal of     Full-text available via subscription   (Followers: 16)
Paladyn. Journal of Behavioral Robotics     Open Access   (Followers: 1)
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: 7)
Pulse     Full-text available via subscription   (Followers: 5)
Radiophysics and Quantum Electronics     Hybrid Journal   (Followers: 2)
Recent Advances in Communications and Networking Technology     Hybrid Journal   (Followers: 4)
Recent Advances in Electrical & Electronic Engineering     Hybrid Journal   (Followers: 11)
Research & Reviews : Journal of Embedded System & Applications     Full-text available via subscription   (Followers: 6)
Revue Méditerranéenne des Télécommunications     Open Access  
Security and Communication Networks     Hybrid Journal   (Followers: 2)
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 56)
Semiconductors and Semimetals     Full-text available via subscription   (Followers: 1)
Sensing and Imaging : An International Journal     Hybrid Journal   (Followers: 2)
Services Computing, IEEE Transactions on     Hybrid Journal   (Followers: 4)
Software Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 79)
Solid State Electronics Letters     Open Access  
Solid-State Circuits Magazine, IEEE     Hybrid Journal   (Followers: 13)
Solid-State Electronics     Hybrid Journal   (Followers: 9)
Superconductor Science and Technology     Hybrid Journal   (Followers: 3)
Synthesis Lectures on Power Electronics     Full-text available via subscription   (Followers: 3)
Technical Report Electronics and Computer Engineering     Open Access  
TELE     Open Access  
Telematique     Open Access  
TELKOMNIKA (Telecommunication, Computing, Electronics and Control)     Open Access   (Followers: 9)
Transactions on Electrical and Electronic Materials     Hybrid Journal   (Followers: 1)
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   (Followers: 1)
Wireless and Mobile Technologies     Open Access   (Followers: 6)
Wireless Power Transfer     Full-text available via subscription   (Followers: 4)
Women in Engineering Magazine, IEEE     Full-text available via subscription   (Followers: 11)
Електротехніка і Електромеханіка     Open Access   (Followers: 1)

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Journal Cover
IET Power Electronics
Journal Prestige (SJR): 0.803
Citation Impact (citeScore): 3
Number of Followers: 57  
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1755-4535 - ISSN (Online) 1755-4543
Published by IET Homepage  [44 journals]
  • Review on fault-diagnosis and fault-tolerance for DC–DC converters
    • Authors: Geddam Kiran Kumar;Devaraj Elangovan;
      Pages: 1 - 13
      Abstract: The DC–DC converters operate extensively in a variety of industrial applications such as electric vehicles, renewable energy systems, aerospace applications, consumer electronics (smartphones, laptops, etc.) and energy storage solutions. The reliability of the DC–DC converters is of a greater significance. The research endeavours made in enhancing the reliability of the DC–DC converters are still very limited and dispersed. Due to the rapid growth in semiconductor technology, the DC–DC converters have an endless number of topologies, with various operating principles and functionalities. Enhancement of the reliability of all types of DC–DC converters is still a challenging task. Power switches are the most fragile components in converter circuits, which inherently fall prey to the faults occurring in the system. Hence, there is always a requirement to take appropriate remedial measures to deal with all kinds of faults. Further, in order to detect the occurrence of fault a fast fault-diagnosis and fault-tolerant strategies in the DC–DC converters is mandatory and the same has to be embedded in the converter for safety purpose. In view of the importance of the same, the fault-diagnostic algorithms and fault-tolerant strategies developed in the literature, by various researchers are furnished in a single document after conducting an exhaustive review.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Fast and simple space vector modulation method for multilevel converters
    • Authors: Haitao Zhang;Yongqing Meng;Lianhui Ning;Yichao Zou;Xiuli Wang;Xifan Wang;
      Pages: 14 - 22
      Abstract: This study proposes a simplified space vector pulse-width modulation (SVPWM) method for multilevel converters. To avoid unnecessary coordination transformations, firstly, a further derivation is conducted on the basis of the 60° coordinate transformation. Then, all the nearest three vectors (NTVs), duty cycles and optimal switching sequence within one switching period can be identified through a simple comparison of three-phase modulation waves. To further reduce the switching frequency, detailed steps to achieve the minimum number of transitions among different NTVs are constructed. Combined with the optimal switching sequence within one switching period, the minimum number of transitions within a fundamental period can be achieved easily. Finally, a thorough discussion is conducted to simplify the procedure further and the flowchart for the proposed SVPWM is also presented. Compared with the previous methods, the proposed method does not require any iterative calculation or coordinate transformation. To the best of the authors’ knowledge, the calculation amount is reduced by almost seven times compared with the methods proposed. In addition, the switching frequency and total harmonic distortions remain at the same level without any deterioration. Finally, the simulation and experiment for modular multilevel converter are performed to verify the correctness and efficiency of the proposed method.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Single-stage high-frequency-isolated three-phase four-leg buck–boost
           inverter with unbalanced load
    • Authors: Ling Gu;Wei Zhu;
      Pages: 23 - 31
      Abstract: A three-phase four-leg inverter shows its preponderance on providing energy to unbalanced load and high DC-link utilisation. To increase the power density of the traditional three-phase four-leg inverter with power frequency isolation, this study proposes a single-stage isolated three-phase four-leg inverter. To ensure the symmetry of three-phase output voltages, the proposed converter provides the path for neutral current resulted by the unbalanced load. It achieves buck–boost DC/AC conversion by introducing the transformer whose turns ratio provides additional voltage gain. The working frequency of the transformer is in accord with the switching frequency, so high-frequency electrical isolation is realised with a single-stage structure as well. The specific mode analysis and the relationship between the switching states and the voltage vectors are presented. A modified three-dimensional space vector pulse width modulation algorithm with a simplified section partition method is proposed, which guarantees the voltage-second balance of the transformer within one switching cycle as well. In order to explore the feasibility of the topology and control strategy, the simulation is done by MATLAB/Simulink. Then a prototype was built in the lab and the experimental results verify that the inverter can produce balanced voltages under both balanced and unbalanced load.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Improved TPS control for DAB DC–DC converter to eliminate dual-side
           flow back currents
    • Authors: Suhua Luo;Fengjiang Wu;Guizhong Wang;
      Pages: 32 - 39
      Abstract: In this study, the essential reason for causing the dual-side flow back currents in the isolated dual active bridge (DAB) DC–DC converter is originally revealed first. It is because the polarities of the AC side output voltages of the two H-bridge converters in DAB converter are not able to be always kept the same as that of the inductor current in the conventional modulation strategies. An improved triple-phase-shift (ITPS) control is proposed according to the analysis results to ensure that the dual-side flow back currents are eliminated, and all of the power switches achieve soft switching in the entire power range. The detailed experimental results of the ITPS control validate its validity and feasibility.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Evaluation of high power density achievement of optimum 4-level
           capacitor-clamped DC–DC boost converter with passive lossless snubber
           circuit by using Pareto-Front method
    • Authors: Mohd Amirul Naim Kasiran;Asmarashid Ponniran;Mohd Hafizie Yatim;Jun-ichi Itoh;
      Pages: 40 - 49
      Abstract: This study presents the evaluation of the proposed optimum 4-level capacitor-clamped DC–DC boost converter (CCBC) for high power density achievement by using Pareto-Front method. The 4-level CCBC with considering high switching frequency can greatly reduce the inductor size and volume. High switching frequency caused the switching devices to suffer high semiconductor losses. Consequently, the cooling device volume is increased as well. Thus, this study presents soft-switching technique in the 4-level CCBC for semiconductor losses reduction. The combination of optimum design of inductor, improvement of circuit structure and soft-switching technique may lead to the highest power density of the converter. A 400 W of the 4-level CCBC converter is designed and experimentally verified. The results show that the inductance and inductor volume required in the 4-level CCBC is reduced by 88.89 and 80.75%, respectively. Besides, Pareto-Front curve shows the highest power density of soft-switching technique with the proposed 4-level CCBC is 6.51 kW/dm3 at 800 kHz of switching frequency with efficiency of 97.20%.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Robust single-phase inverter based on the buck–boost converter through
           an efficient hybrid control
    • Authors: Faruk Yalcin;Ugur Arifoglu;Irfan Yazici;Kenan Erin;
      Pages: 50 - 59
      Abstract: This study presents a new and robust single-phase inverter based on the buck–boost converter. The proposed inverter topology has minimised numbers of active and passive elements that provide less complexity and cost. Unlike similar studies in the literature, an efficient hybrid control technique is used for the control of the inverter operation. The hybrid control technique is comprised of the traditional feedback proportional–integral–derivative (PID) controller and the new proposed open-loop control technique called ‘control law’. This hybrid control technique provides stable and high response performance operation for the proposed inverter while the system parameters change. The proposed inverter can operate with a wide range of output frequency and output voltage value on different load conditions while satisfying
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Synchronous drive circuit with current limitation for solid-state pulsed
           power modulators
    • Authors: Junfeng Rao;Tong Zeng;Song Jiang;Kun Xia;Zi Li;
      Pages: 60 - 67
      Abstract: Recently, solid-state pulsed power modulators (SSPPMs) are widely used in pulsed power applications. Due to the relatively low rated voltage and rated current of semiconductor switches, a single SSPPM usually consists of hundreds of power switches which work at different voltage potentials. Therefore, the synchronous and isolated driving of so many switches is a very challenging task in the design of SSPPMs. Here, a very simple but powerful synchronous drive circuit with current limitation is proposed for a solid-state Marx generator. It spares the use of isolated power supply for drives, and the negative bias voltage enhances the electromagnetic compatibility. Moreover, the proposed circuit can flexibly change the value of clamped current according to practical requirements. This drive circuit can be utilised in other types of SSPPMs. The operation principle i.e. the design concept of the pulsed power system is given in detail and the feasibility is verified experimentally.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Regenerative switched-inductor/capacitor type DC–DC converter with large
           voltage gain for PV applications
    • Authors: Venkitusamy Karthikeyan;Kumaravel Sundaramoorthy;Gangavarapu Guru Kumar;Ebrahim Babaei;
      Pages: 68 - 77
      Abstract: In grid-connected PV applications, the presence of a transformer not only increases the cost, size and weight, but also decreases the whole system efficiency, especially, under poor irradiation conditions. To eliminate the transformer and to meet DC link voltage, a regenerative switched-inductor/capacitor type DC–DC converter with large voltage gain is proposed in this study. In traditional boost type and derived converters, the voltage gain ratio is limited due to voltage stress on the semiconductor devices and low efficiency because of more components count and large duty cycle operation. The proposed converter recycles the energy in lossless passive components and increases the step-up voltage gain, which improves the efficiency. In addition, the converter possesses fewer ripples and smooth continuous current, which reduces the power loss, elongates lifespan of the input source and restricts electromagnetic interference issues. This study presents detailed operating waveforms, modes of operation and performance characteristics of the proposed converter. In order to validate the operation, 500 W experimental prototype is developed and verified with measured results. The proposed converter yields the peak efficiency of 95.20% for the output power of 440 W.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Voltage and frequency regulation in an islanded microgrid with PEM fuel
           cell based on a fuzzy logic voltage control and adaptive droop control
    • Authors: Elham Shafiee Roudbari;Mohammad Taghi Hamidi Beheshti;Seyed Mehdi Rakhtala;
      Pages: 78 - 85
      Abstract: Nowadays, the demand for electrical energy is increasing, and conventional power systems will face major problems in the future if they cannot generate extra demand for electrical energy. One of the best solutions for solving extra demand for electrical energy is the use of renewable resources to produce energy. The main aim of this study is designing and controlling the microgrid voltage and frequency. This study proposed the voltage and frequency control of an islanded microgrid based on fuzzy logic controller. The system considered for this study consists of Proton-Exchange Membrane Fuel Cell (PEMFC) that connected to parallel inverters to convert DC voltage to AC voltage. The control structure is based on adaptive droop control and fuzzy voltage control loop. Also, the proposed structure controls active and reactive powers and decreases power losses of the microgrid. Simulation results are presented to show the effectiveness and robustness of the proposed control structure over the conventional proportional–integral controller. It is shown that the proposed controller has good transient response under the output voltage PEMFC variation and load changes as disturbance.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Compact pulse position control-based inverter for high efficiency
           inductive power transfer to electric vehicle
    • Authors: Sooraj Varikkottil;Febin Daya J.L.;
      Pages: 86 - 95
      Abstract: A compact high efficient inductive power transfer (IPT) topology based on pulse position control is proposed for wireless charging of electric vehicle. Near-field wireless charging is efficiently achieved by the resonance-enhanced IPT technique. The system sustains high power transfer efficiency under contingency in misalignment of pickup coil and load variations. The performance evaluation of the proposed system under the occurrence of anticipated perturbation in load and mutual inductance is studied numerically. Experimental results from the developed prototype corroborate the theoretical and simulated results discussed in the proposed study.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Interleaved high step-up zero-voltage zero-current switching boost
           DC–DC converter
    • Authors: Reyhaneh Eskandari;Ebrahim Babaei;Mehran Sabahi;Sirous Ranjbarzadeh Ojaghkandi;
      Pages: 96 - 103
      Abstract: In this study, an interleaved soft switching boost converter suitable for high step-up applications is proposed. Zero voltage switching and zero current switching characteristics could be provided for main switches and main diodes, simultaneously. Also, the auxiliary semiconductors can achieve soft switching. Since all the utilised diodes operate under soft-switching conditions, the diodes reverse recovery problem is perfectly alleviated. Due to the unique operation of the proposed topology, the converter is controlled by variant switching frequency and high voltage ratios can be achieved. Further, the precise theoretical analyses and design procedure of the converter have been investigated utterly. Finally, according to the designed characteristics, a laboratory prototype with 60 V input voltage and 300 V output voltage is built and tested, which is in agreement with theoretical analyses.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • High step-down/high step-up interleaved bidirectional DC–DC converter
           with low voltage stress on switches
    • Authors: Sara Mousavinezhad Fardahar;Mehran Sabahi;
      Pages: 104 - 115
      Abstract: A DC–DC bidirectional converter which has low voltage stress on its semiconductor elements is presented in this study. This study presents a novel interleaved coupled-inductor-based non-isolated bidirectional DC–DC converter which is able to provide a high voltage gain conversion ratio. The high voltage gain of the proposed converter is achieved through its symmetrical topology with coupled inductors in its structure. Based on the fact that the voltage of the high-voltage side is shared between the two separate modules of the converter, the voltage stress across the switches is decreased. There are two blocking capacitors in the primary side, which help the converter to have symmetrical topology. Also, the switching pattern of the proposed converter is simple and the converter is able to provide a single voltage gain for the whole range of duty cycle. The theoretical results are approved through the prototype of the converter for 400 W.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Current-source mode switched-capacitor power converters with improved
           current gain capability
    • Authors: Jin Hong Sun;Ka Wai Eric Cheng;
      Pages: 116 - 126
      Abstract: A new family of current-source (CS) mode switched-capacitor (SC) power converters has been proposed in this study, which imposes an alternative solution for power converters especially for CS systems. The conversion ratio of this type converter is analysed and verified here to have one increased degree of freedom using the switching mode and the capacitor-tapping mode, which is a good solution to deal with the limitation of duty cycle adjustment. This research improves the CS mode system that is relatively unexplored in previous works and the proposed work fills the research gap by the sides of the well-established voltage-source (VS) system. An interesting power conversion ratio formulation is obtained, which can produce the wide range of conversion ratio of VS mode switched-inductor power converters and CS mode SC power converters in buck, boost and buck–boost versions. In addition, this proposed CS mode SC power converters have high efficiency of power conversion through simulation and prototype experiments verification. These CS mode converters can flexibly supply power directly to the load powered by the CS and successfully replace the VS mode converters operated under the current environment system.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Transient pulse-based impedance characterisation of DC-link capacitor for
           EV systems
    • Authors: Emre Gurpinar;Burak Ozpineci;
      Pages: 127 - 132
      Abstract: In this study, a method for impedance characterisation of DC-link capacitors based on transient pulse analysis is proposed. The fundamentals of the concept are presented and design considerations are discussed. The functionality of the proposed approach is supported by SPICE simulation with two different commercial capacitors from different manufacturers and validated with experimental results. Experimental results for equivalent series resistance, equivalent series inductance (ESL) and capacitance estimation are presented for commercial DC-link capacitors and compared with component analyser results. The simulation and experimental results show that the proposed method is a promising candidate for capacitance and ESL estimation of capacitors in EV traction systems.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Multi-input high step-up inverter with soft-switching capability,
           applicable in photovoltaic systems
    • Authors: Ebrahim Babaei;Hadi Tarzamni;Farzad Tahami;Hossein Khoun Jahan;Mohammad Bagher Bannae Sharifian;
      Pages: 133 - 143
      Abstract: In this study, a new multi-input high step-up inverter, based on isolated soft-switching DC–DC converter blocks is proposed. Each of these blocks can provide zero-voltage and zero-current switching for its semiconductors, which improve power efficiency. The interesting feature of this DC–DC converter is using bidirectional switches to generate both positive and negative output voltage levels in each DC–DC block with an appropriate control scheme. Each DC–DC converter operates by simple pulse width modulation control through fixed frequency and has two degrees of freedom, which provide the capability of output voltage regulation or maximum power point tracking. The proposed inverter consists of the cascaded connection of these DC–DC converters at their output terminal. This inverter can operate with high voltage gain, where the output voltage of each DC–DC converter is regulated. Furthermore, it can generate more output voltage levels with less number of DC–DC blocks. All these advantages make the proposed inverter suitable for photovoltaic power conditioning systems. In this study, the theoretical analysis with steady-state waveforms, design constraints, resonant tank analysis and comparison study are given. Then, experimental results of both the proposed inverter and its DC–DC blocks are presented.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Two- and three-winding coupled-inductor-based high step-up DC–DC
           converters for sustainable energy applications
    • Authors: Mahmoodreza Eskandarpour Azizkandi;Farzad Sedaghati;Hossein Shayeghi;Frede Blaabjerg;
      Pages: 144 - 156
      Abstract: This study proposes two configurations for a non-isolated, high step-up, single-switch, coupled-inductor-based DC–DC converter. A coupled inductor and voltage multiplier cells are used in the presented topologies to obtain a high voltage gain. Also, a passive clamp circuit is applied in the topologies to reduce voltage stress of the main power switch. This leads to utilising a power switch with lower on-state resistance, which decreases the conduction loss. Several advantages such as low operating duty cycle, high voltage conversion ratio, reduced voltage stress of semiconductors, low turn ratio of the coupled inductor, leakage inductance energy recovery and high efficiency operation make the presented structures appropriate for sustainable energy applications. The operational principle and steady-state analysis of the suggested topologies in continuous conduction mode are expressed in detail. Also, design procedure and theoretical efficiency of the topologies are presented. Then, the suggested topologies are compared with several similar high step-up topologies to prove their advantages. Finally, the performance and feasibility of the proposed DC–DC converter configurations are confirmed through experimental measurement results of 29 V input and 435 V/213 W and 480 V/238 W output laboratory prototypes at 50 kHz switching frequency.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Single-phase common-grounded transformer-less grid-tied inverter for PV
    • Authors: Naser Vosoughi;Seyed Hossein Hosseini;Mehran Sabahi;
      Pages: 157 - 167
      Abstract: In this study, a novel topology for the single-phase transformerless grid-connected inverters family is proposed. By using the series–parallel switching conversion of the integrated switched-capacitor module in a packed unit, several merits can be added to the proposed inverter, such as higher efficiency, boosting ability within a single-stage operation, and removing the leakage current problem by using the common grounding technique. In this study, a peak current controller strategy is implemented in order to generate the gate pulses of semiconductor switches. Moreover, this strategy is used to control both the active and reactive powers. Therefore, a thoroughly controlled current with a proper quality can be supplied to the grid from a single source renewable energy resource. The operating procedure, design consideration, comparison study, and the experimental results for a 510 W prototype are presented in order to validate the correctness and feasibility of the proposed topology.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Recognition method of voltage sag causes based on two-dimensional
           transform and deep learning hybrid model
    • Authors: Zhicong Zheng;Linhai Qi;Hong Wang;Aiqiang Pan;Jian Zhou;
      Pages: 168 - 177
      Abstract: The voltage sags’ caused recognition is the basis for formulating governance plans and clarifying liabilities for accidents. The diversification of smart grid equipment, the grid-connected power generation of new energy sources and the regional differentiation of power consumption modes pose new challenges to the traditional methods. In this study, a method based on deep learning hybrid model is proposed. The convolutional neural network is used to flexibly receive the voltage after two-dimensional transformation, so as to automatically obtain the time series and spatial characteristics of the voltage sag signals. The deep belief network is used to replace the fully connected layers in convolutional neural network, thereby enhancing the multi-label classification ability of the model. The parameters obtained by the unsupervised training of the stacked sparse denoising auto-encoder are used to initialise the weight of deep belief network, thereby improving the convergence speed and the anti-noise performance of the model. Iterative training and repeated testing of the network using pre-processed simulation data and actual recorded data verify the high recognition accuracy and strong anti-noise performance of the hybrid model. Compared with the traditional methods, the hybrid model also has good generalisation ability and can be effectively applied in practical engineering.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Minimum phase bipolar converter for DC microgrid applications
    • Authors: Pawan Kumar;Rajeev Kumar Singh;Ranjit Mahanty;
      Pages: 178 - 190
      Abstract: This study proposes a minimum phase bipolar converter for dc microgrid applications, which is derived from the combination of ${ C^{prime}} uk$C′uk and Sepic converters with some modifications in both of them in order to get a minimum phase system. In the proposed bipolar converter (PBC), the equivalent series resistance of transfer capacitors of both ${ C^{prime}}{rm uk}$C′uk and Sepic converters is increased by adding resistances and introducing magnetic coupling between the filter inductors of the Sepic converter with a series RC network. These circuit modifications eliminate right half plane zero from the PBC and thereby make it a minimum phase, unlike the conventional ${ C^{prime}}{rm uk}$C′uk–Sepic bipolar converter. Due to the minimum phase behaviour, the proposed converter can deliver high load current, achieve- high bandwidth and facilitates simpler controller design in contrast to the conventional ${ C^{prime}}{rm uk}$C′uk–Sepic bipolar converter. Detailed steady state and dynamic modelling of the PBC has been carried out in order to show its advantages. A 500 W laboratory prototype has been developed and implemented using field programmable gate array-based system to verify the operation of the proposed converter.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
  • Investigating of bidirectional dc–dc converter in different operational
           modes and designing of component considering the minimum OVR and filter
    • Authors: Ebrahim Babaei;Hamed Mashinchi Maheri;Mehran Sabahi;
      Pages: 191 - 201
      Abstract: This study investigates a bidirectional dc–dc converter. The energy transmission techniques are analysed. A design procedure based on output voltage ripple (OVR) and filter size is implemented on a bidirectional dc–dc converter. The OVR of the converter is analysed in different operation modes. The relations between the maximum OVR (MOVR) (the worst condition) and the converter component parameters are deduced, and the minimum inductance value is calculated to ensure the MOVR and filter size minimisation in both of the step-up and step-down operations. The effect of coupling coefficient of the coupled inductors on the OVR is investigated. Finally, experimental and simulation results are provided to validate the theoretical analyses.
      PubDate: 1 7 2020
      Issue No: Vol. 13, No. 1 (2020)
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