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Статті в журналах з теми "Impulse converter"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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1

Gusev, Nikolay, Larisa Svatovskaya, and Alexandr Kucherenko. "Effect of changing of the parameters of the cable network of monitoring systems of high-rise buildings on the basis of string converters on their operability." E3S Web of Conferences 33 (2018): 02069. http://dx.doi.org/10.1051/e3sconf/20183302069.

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The article is devoted to the problem of improving the reliability of monitoring systems for the technical conditions of high-rise buildings. The improvement is based on string sensors with an impulsed excitation method ensuring the maximum signal-to-noise ratio at their output. The influence of the parameters of the monitoring system on the shape of the excitation impulses of the string, and, consequently, on the amplitude of the string vibration of the string converter is also considered in the article. It has been experimentally proved that the parameters of the excitation impulses of the s

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2

Sergiienko, Anna S., and Sergej S. Starostin. "IMPULSE MODEL OF A FREQUENCY MATRIX CONVERTER." ELECTRICAL AND COMPUTER SYSTEMS 19, no. 95 (2015): 88–91. http://dx.doi.org/10.15276/eltecs.19.95.2015.22.

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3

Ma, Jiaqi, Qihang Wang, and Shuqing Zhang. "An Impulse Equivalent VSC Model for Large Power Grids Containing Multiple Converters." Journal of Physics: Conference Series 2774, no. 1 (2024): 012037. http://dx.doi.org/10.1088/1742-6596/2774/1/012037.

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Abstract This paper explores the impulse equivalent method for constructing voltage source converter (VSC) model in large power grids containing multiple converters. It addresses the challenge of simulation cycle mismatch with device switching moments and proposes a cross-cycle correction method. The method enhances the VSC electromagnetic transient (EMT) simulation model, making it suitable for large-scale power grid simulations. The approach is validated through case studies, confirming its accuracy and computational efficiency for complex power electronic networks.

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4

Volkov, I. V., and S. V. Podolny. "ENERGY CHARACTERISTICS OF THE RESONANT TYPE CONVERTER WITH METERED ENERGY TRANSMISSION." Tekhnichna Elektrodynamika 2021, no. 2 (2021): 42–46. http://dx.doi.org/10.15407/techned2021.02.042.

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This article investigated two cases of impulse transformer location selection in the DC-DC type two-step resonant converter, which fully segregates processes of taking and transferring energy between the input and its load. The electromagnetic processes during energy taking/transferring were studied, including active and static losses in the converter elements. Based on the suggested analytical-numerical method, the criteria for selecting the impulse transformer optimal transformation ratio, from the system efficiency point of view, was derived. The proposed optimization technique can be appli

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5

Jadeja, R. B., S. A. Kanitkar, and Anurag Shyam. "FFT Analysis of a Series Loaded Resonant Converter-Based Power Supply for Pulsed Power Applications." International Journal of Plasma Science and Engineering 2008 (April 24, 2008): 1–5. http://dx.doi.org/10.1155/2008/284549.

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An impulse power supply has been designed, simulated, and tested in order to feed the primary of a high-frequency transformer. Pulse power system has been widely used for plasma applications. The operational principle of the pulse power system is that the energy from the input source is stored in the capacitor bank device through a dc-dc converter. Then, when a discharging signal is given, the stored energy is released to the load. The new family of ZCS converters is suitable for high-power applications using insulated gate bipolar transistors (IGBTs). The power converter can achieve zero swit

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6

Kulikov, V. A., V. N. Syakterev, and V. V. Syaktereva. "Application of Passive Time-to-Pulse Converter in Temperature Measurement Systems of Moving Objects." Intellekt. Sist. Proizv. 20, no. 4 (2022): 9–19. http://dx.doi.org/10.22213/2410-9304-2022-4-9-19.

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A variant of the implementation of a time-to-pulse converter as part of a human temperature measurement system is considered, in which a first-order circuit forming an information time interval is formed by a resistance temperature device and a capacitor. Initialization and registration of the time for the transient phenomena are carried out by MIS transistor and an integral comparator. Assessment of the differential sensibility of the converter depending on the time constant of the forming circuit for medium-speed keys is provided. The scheme of a multichannel converter is presented, with seq

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7

Du, Fei, Wenzhi Chang, Guangzhen Wang, Shuai Yuan, and Yanpeng Gong. "Key Parameters of Electromagnetic Compatibility of On-line Monitoring Sensor Device for Power Converter Valve." Journal of Physics: Conference Series 2378, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1742-6596/2378/1/012002.

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Abstract Converter valve is the key equipment of power grid, the safety and reliability deeply affect the reliability of power grid. In the industry, infrared and discharge sensors have been widely used to realize on-line condition monitoring. However, devices’ failure and accuracy reduced often happen, and the complex electromagnetic environment caused by converter valve are difficult to resisted. It is necessary to study the electromagnetic interference produced by the converter valve in order to guide the electromagnetic compatibility design of the sensor or monitoring device. Based on the

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8

CHUDAKOV, Alexander I., Valery O. IVASHCHENKO, Alexey P. ZELENCHENKO, and Nikolay V. LYSOV. "Optimization of control systems for suburban trains." Proceedings of Petersburg Transport University 2021, no. 4 (2021): 499–506. http://dx.doi.org/10.20295/1815-588x-2021-4-499-506.

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Objective: The use of pulse conversion of electricity on direct-current traction rolling stock is discussed. Methods: A variant of the system for regulating the operating modes of traction motors of suburban electric trains using a pulse converter based on insulated gate bipolar transistors is described. (IGBT). Results: The proposed impulse control system is presented as a possible option for the modernization of the applied control systems, which makes it possible to improve the traction and energy indicators of suburban electric trains. The advantages of pulse converters based on IGBTs are

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9

M., A. N. Amran, A. Bakar A., H. A. Jalil M., U. Wahyu M., and F. H. A. Gani A. "Simulation and modeling of two-level DC/DC boost converter using ARX, ARMAX, and OE model structures." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 18, no. 3 (2020): 1172–79. https://doi.org/10.11591/ijeecs.v18.i3.pp1172-1179.

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This paper presents simulation and modeling of two-level DC/DC boost converter using system identification technique. The main objective is to identify the unknown mathematical model from designated converter that has 2 modes of operation. Signals from the converter were processed based on the impulse response from input and output voltages, which were in time domain data. Auto Regressive with eXogenous (ARX), Auto Regressive Moving Average with eXogenous (ARMAX), and Output-Error (OE) model structure techniques had been employed to generate a model from the converter, whose validation was bas

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10

Tang, Bei Bei, Yun Zhang, Zhi Jing Xu, and Jun Li. "Research on Performance of Analog to Information Converter." Applied Mechanics and Materials 333-335 (July 2013): 601–4. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.601.

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Compressive Sensing (CS) Theory enables sampling discrete signals with quite lower sampling rate compared with traditional Nyquist sampling rate and guaranteeing faithful reconstruction. Based on CS theory, Analog-to-Information Conversion (AIC) was proposed to process continuous-time signal. In this paper, the framework of Analog-to-Information Converter is composed by a pseudo-random demodulator, a low pass analog filter and a low speed sampler. And we mainly discuss the damage on the signal recovery produced by lower and higher orders of filter impulse response.

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11

Wrzuszczak, Maria, Volodymyr Khoma, and Roman Baran. "Impulse-Code Converter with Selected Resolution and Square-Root Transform Function." Pomiary Automatyka Robotyka 19, no. 4 (2015): 21–25. http://dx.doi.org/10.14313/par_218/21.

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12

Antipina, E. S., S. N. Zhilin, and G. V. Kukinova. "Technological Capabilities of Impulse Rotators." IOP Conference Series: Earth and Environmental Science 988, no. 5 (2022): 052002. http://dx.doi.org/10.1088/1755-1315/988/5/052002.

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Abstract In the article “Technological capabilities of impulse rotators” the results of use of impulse rotators in some technological processes, differential adjustment of their motion with kinematic and dynamic vibration exciter are considered. Equation of kinetic energy of impulse rotator allows to determine mutual influence of design elements on rational use of supplied pulse energy for useful work. Positive qualities of kinematic torsional vibration exciters are noted, the main of which is organization of force pulse regularity and its considerable force possibilities of pulse creation. A

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13

Ciappi, Lorenzo, Lapo Cheli, Irene Simonetti, Alessandro Bianchini, Giampaolo Manfrida, and Lorenzo Cappietti. "Wave-to-Wire Model of an Oscillating-Water-Column Wave Energy Converter and Its Application to Mediterranean Energy Hot-Spots." Energies 13, no. 21 (2020): 5582. http://dx.doi.org/10.3390/en13215582.

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Oscillating water column (OWC) systems are among the most credited solutions for an effective conversion of the notable energy potential conveyed by sea waves. Despite a renewed interest, however, they are often still at a demonstration phase and additional research is required to reach industrial maturity. Within this framework, this study provides a wave-to-wire model for OWC systems based on an impulse air turbine. The model performs a comprehensive simulation of the system to estimate the attendant electric energy production for a specific sea state, based on analytical models of the prima

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14

Baida, Evgen, and Olena Korol. "Comparative analysis of electromechanical processes in induction-dynamic converter with mobile inductor and two disks." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 1 (5) (May 28, 2021): 3–7. http://dx.doi.org/10.20998/2079-3944.2021.1.01.

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General description of the research topic. The article presents a comprehensive study of traditional induction-dynamic mechanisms (with one disk and a fixed coil) and multi-core induction-dynamic mechanisms (linear pulse induction converters) with a movable coil and two disks. Actuality of the topic. Such induction-dynamic mechanisms are widely used in various fields, in particular, in electrical apparatus industry, where speed is one of the most important characteristics. The purpose of the article is a comparative analysis and refinement of the characteristics of the traditional induction-dy

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15

Tao, Haijun, Guopeng Zhang, and Zheng Zheng. "Onboard Charging DC/DC Converter of Electric Vehicle Based on Synchronous Rectification and Characteristic Analysis." Journal of Advanced Transportation 2019 (June 2, 2019): 1–10. http://dx.doi.org/10.1155/2019/2613893.

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The DC/DC converter is the core part of the two-stage electric vehicle Onboard Charger. At present, the phase-shifted full-bridge soft-switching DC/DC converter has problems such as difficulty in commutation of the lagging leg, voltage fluctuation on the secondary side of the transformer, and low efficiency. A full-bridge DC/DC converter with two clamp diodes and synchronous rectification is proposed in this paper. Clamping diodes are used to suppress the voltage oscillation of the secondary side of the transformer and provide the commutating energy of the lagging leg. Synchronous rectificatio

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16

Clautice, Edward G. "A presentation of acoustical impulse responses with an analog‐to‐digital converter." Journal of the Acoustical Society of America 81, S1 (1987): S31. http://dx.doi.org/10.1121/1.2024189.

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17

Renzi, E., Y. Wei, and F. Dias. "The pressure impulse of wave slamming on an oscillating wave energy converter." Journal of Fluids and Structures 82 (October 2018): 258–71. http://dx.doi.org/10.1016/j.jfluidstructs.2018.07.007.

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18

Amran, M. A. N., A. A. Bakar,, M. H. A. Jalil, M. U. Wahyu, and A. F. H. A. Gani. "Simulation and modeling of two-level DC/DC boost converter using ARX, ARMAX, and OE model structures." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 3 (2020): 1172. http://dx.doi.org/10.11591/ijeecs.v18.i3.pp1172-1179.

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Анотація:

<span>This paper presents simulation and modeling of two-level DC/DC boost converter using system identification technique. The main objective is to identify the unknown mathematical model from designated converter that has 2 modes of operation. Signals from the converter were processed based on the impulse response from input and output voltages, which were in time domain data. Auto Regressive with eXogenous (ARX), Auto Regressive Moving Average with eXogenous (ARMAX), and Output-Error (OE) model structure techniques had been employed to generate a model from the converter, whose valida

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19

Abu Bakar, Mohd Aftar, Noratiqah Mohd Ariff, Andrew V. Metcalfe, and David A. Green. "Wavelet Characterizations for Investigating Nonlinear Oscillators." Sains Malaysiana 50, no. 11 (2021): 3405–20. http://dx.doi.org/10.17576/jsm-2021-5011-24.

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This study investigates the wavelet-based system identification capabilities on determining the system nonlinearity based on the system impulse response function. Wavelet estimates of the instantaneous envelopes and instantaneous frequency are used to plot the system backbone curve. This wavelet estimate is then used to estimate the values of the parameter for the system. Two weakly nonlinear oscillators, which are the Duffing and the Van der Pol oscillators, have been analyzed using this wavelet approach. A case study based on a model of an oscillating flap wave energy converter (OFWEC) was a

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20

PRASAD, K. S., C. ESWARAN, and A. ANTONIOU. "NEW FIRST-ORDER COMPLEX DIGITAL-FILTER SECTIONS AND THEIR APPLICATION FOR THE REALIZATION OF IIR FILTERS." Journal of Circuits, Systems and Computers 03, no. 03 (1993): 757–71. http://dx.doi.org/10.1142/s0218126693000459.

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New first-order complex digital-filter sections are realized using the concept of the generalized-immittance converter. These sections are then employed for the realization of infinite impulse response digital filters with real coefficients. The filters obtained with the proposed sections have sensitivity and roundoff noise properties that are comparable to those of other structures of this class reported earlier.

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21

Flamang, P., and R. Sierens. "Study of the Steady-State Flow Pattern in a Multipulse Converter by LDA." Journal of Engineering for Gas Turbines and Power 110, no. 3 (1988): 515–22. http://dx.doi.org/10.1115/1.3240165.

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This paper describes pressure and velocity measurements on a multipulse converter under steady-state conditions. Pressure loss coefficients were measured on this four-entry pulse converter system for a large number of flow configurations. Three-dimensional velocity measurements were done (with Laser-Doppler anemometry) for several flow configurations and at different cross sections in the converter. The normal flow situation (incoming flow at the four entries) and back flow situations were examined. For each cross section the axial velocity profiles, the secondary flow patterns, and the turbul

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22

Mopari, Shrikant S., Dagadu Shankar More, Anjali S. Bhalchandra, Pannala Krishna Murthy, and K. M. Jadhav. "Analysis of converter transformer pressboard insulation degradation under surge using mathematical morphology." Indonesian Journal of Electrical Engineering and Computer Science 34, no. 3 (2024): 1434. http://dx.doi.org/10.11591/ijeecs.v34.i3.pp1434-1443.

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Nowadays, with the significant expansion of industrial growth, the bulk power requirement can only be satisfied through high-voltage direct current HVDC transmission. The converter transformer is the utmost vital part of the HVDC transmission. Pressboard insulation is most commonly used as inter-disc insulation in converter transformers. During working conditions due to elevated temperature and different operational stresses, insulation material gets deteriorated. It may cause a risk to the life of the converter transformer. The effects of elevated temperatures as well as frequency on pressboa

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23

Mopari, Shrikant S., Dagadu Shankar More, Anjali S. Bhalchandra, Pannala Krishna Murthy, and K. M. Jadhav. "Analysis of converter transformer pressboard insulation degradation under surge using mathematical morphology." Indonesian Journal of Electrical Engineering and Computer Science 34, no. 3 (2024): 1434–43. https://doi.org/10.11591/ijeecs.v34.i3.pp1434-1443.

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Анотація:

Nowadays, with the significant expansion of industrial growth, the bulk power requirement can only be satisfied through high-voltage direct current HVDC transmission. The converter transformer is the utmost vital part of the HVDC transmission. Pressboard insulation is most commonly used as inter-disc insulation in converter transformers. During working conditions due to elevated temperature and different operational stresses, insulation material gets deteriorated. It may cause a risk to the life of the converter transformer. The effects of elevated temperatures as well as frequency on pressboa

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24

Saad, Mina, Manuel García-Diaz, and Bruno Pereiras. "Analysis of an optimized radial impulse turbine for an OWC wave energy converter." Journal of Physics: Conference Series 2217, no. 1 (2022): 012075. http://dx.doi.org/10.1088/1742-6596/2217/1/012075.

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Abstract OWC concept is one of the most spread technologies among wave energy converters due to several reasons. However, this technology has always deal with the problem of the inherent bidirectional flow. Many solutions have been adopted such as a flow rectification system combined with a unidirectional turbine, several types of bidirectional turbines such as Wells turbine or impulse turbine. In this work, it is shown the performance of an optimized geometry for a radial impulse turbine, which improvement is based on the re-designing of the blades and settling angles of the vanes. A CFD mode

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25

Zhang, Shiling, and Jiang Xiping. "Theoretical Analysis of External Insulation of Typical Electric Equipment under Impulse Voltage and Research on Design and Verification Method of Margin." Journal of Physics: Conference Series 2480, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1742-6596/2480/1/012007.

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Abstract Lightning impulse voltage, one of the typical characteristic working conditions for assessing high-voltage power equipment, can be divided into two forms, namely full wave, and chopped wave. The external structure size of the power equipment directly depends on the lightning impulse voltage, but how lightning impulse voltage relates to the external structure size of the power equipment needs to be carefully studied. Firstly, the theoretical analytical expressions of full wave and chopped wave lightning waveforms are given from the perspective of theoretical formulas. And the lightning

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26

Menaker, K. V., and A. S. Tsvetaeva. "Development of the impulse circuit of excitation of an impact resonant power converter." Russian Electrical Engineering 86, no. 5 (2015): 270–74. http://dx.doi.org/10.3103/s1068371215050053.

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27

Alekseev, N. A., P. Yu Bulykin, E. Yu Zmaznov, et al. "Upgrading of the Vyborg Converter Substation: Analysis of Lightning Impulse Voltage Withstand Capability." Power Technology and Engineering 53, no. 1 (2019): 106–12. http://dx.doi.org/10.1007/s10749-019-01044-6.

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28

Merz, Roman, Cyril Botteron, Frédéric Chastellain, and Pierre-André Farine. "A Programmable Receiver for Communication Systems and Its Application to Impulse Radio." Research Letters in Communications 2009 (2009): 1–5. http://dx.doi.org/10.1155/2009/238521.

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The design of a programmable receiver for an ultra wideband (UWB) communication is presented. The receiver is using a fast analog to digital converter (ADC) and a field programmable gate array (FPGA) allowing a rapid performance evaluation for various system architectures and signal processing algorithms. To demonstrate the performance and the versatility of the receiver, a simple communication system and a localization system are implemented. The accuracy of the latter is presented for an indoor environment.

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29

Bolyukh, V. F., and I. S. Shchukin. "INFLUENCE OF AN EXCITATION SOURCE ON THE POWER INDICATORS OF A LINEAR PULSE ELECTROMECHANICAL CONVERTER OF INDUCTION TYPE." Tekhnichna Elektrodynamika 2021, no. 3 (2021): 28–36. http://dx.doi.org/10.15407/techned2021.03.028.

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The purpose of the article is to evaluate the efficiency of an induction-type linear pulse electromechanical converter (LPEC) when operating in shock-power mode and excitation from an alternating voltage source (AVS) in comparison with excitation from a capacitive energy storage (CES). A mathematical model of an induction-type LPEC has been developed both when excited by a unipolar pulse from a CES and from an AVS using lumped parameters of the windings, which takes into account the interrelated electromagnetic, mechanical and thermal processes. It has been found that when the LPEC is excited

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30

Blech, M. D., A. T. Ott, P. Neumeier, M. Möller, and T. F. Eibert. "A reconfigurable software defined ultra-wideband impulse radio transceiver." Advances in Radio Science 8 (September 30, 2010): 67–73. http://dx.doi.org/10.5194/ars-8-67-2010.

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Abstract. An ultra-wideband (UWB) software defined radio (SDR) implementation is presented. The developed impulse radio (IR) transceiver employs first order bandpass (BP) sampling at a conversion frequency which is four times the channel bandwidth. The subsampling architecture directly provides the RF signal avoiding any non-ideal mixer stages and reduces the requirements of digital signal processing implemented in a field programmable gate array (FPGA). The transmitter consists basically of a multi-Nyquist digital to analog converter (DAC), whereas the implemented matched filter (MF) receiver

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31

Park, Sunho, Wooyoung Jeon, Kilwon Kim, and Beom-Soo Hyun. "Practical Method for Performance Prediction of Impulse Turbine for OWC-type Wave Energy Converter." Journal of the Korean Society for Marine Environment & Energy 23, no. 1 (2020): 23–28. http://dx.doi.org/10.7846/jkosmee.2020.23.1.23.

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32

Hosseini, Seyed Mohammad Hassan, Hamid Reza Ghafourinam, and Mohammad Hossein Oshtaghi. "Modeling and Construction of Marx Impulse Generator Based on Boost Converter Pulse-Forming Network." IEEE Transactions on Plasma Science 46, no. 10 (2018): 3257–64. http://dx.doi.org/10.1109/tps.2018.2864333.

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33

Hosseini, S. M. Hassan, and Farzad Faradjizadeh. "Increasing the voltage of PFN impulse generator capacitors by converting it to boost converter." IEEE Transactions on Dielectrics and Electrical Insulation 20, no. 2 (2013): 462–67. http://dx.doi.org/10.1109/tdei.2013.6508748.

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34

Cuoghi, Stefania, Lorenzo Ntogramatzidis, Fabrizio Padula, and Gabriele Grandi. "Direct Digital Design of PIDF Controllers with ComPlex Zeros for DC-DC Buck Converters." Energies 12, no. 1 (2018): 36. http://dx.doi.org/10.3390/en12010036.

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This paper presents a new direct digital design method for discrete proportional integral derivative PID + filter (PIDF) controllers employed in DC-DC buck converters. The considered controller structure results in a proper transfer function which has the advantage of being directly implementable by a microcontroller algorithm. Secondly, it can be written as an Infinite Impulse Response (IIR) digital filter. Thirdly, the further degree of freedom introduced by the low pass filter of the transfer function can be used to satisfy additional specifications. A new design procedure is proposed, whic

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35

Panteleev, V. I., I. S. Kuzmin, A. A. Zavalov, A. V. Tikhonov, and E. V. Umetskaia. "Power quality in power supply systems of mining and processing enterprises in Russia." Proceedings of Irkutsk State Technical University 25, no. 3 (2021): 356–68. http://dx.doi.org/10.21285/1814-3520-2021-3-356-368.

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This paper investigates the effect of the load factor of frequency converters and thyristor converters on electrical power quality. Recommendations for reducing the influence of higher harmonics and switching overvoltages on the characteristics of electrical power are provided. Higher harmonics were measured by a PKK57 complex device for controlling electrical parameters and a digital oscilloscope of the Tektronix TDS 2024V type. Impulse switching overvoltages were recorded by an active resistance divider of the DNEK-10 type and the above-mentioned oscilloscope. The obtained data were processe

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36

Kong, Liu, Su, Ao, Chen, and Jing. "Analytical and Numerical Analysis of the Dynamics of a Moonpool Platform–Wave Energy Buoy (MP–WEB)." Energies 12, no. 21 (2019): 4083. http://dx.doi.org/10.3390/en12214083.

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Анотація:

In this work the hydrodynamic performance of a novel wave energy converter configuration was analytically and numerically studied by combining a moonpool and a wave energy buoy, called the moonpool platform–wave energy buoy (MP–WEB). A potential flow, semi-analytical approach was adopted to assess the total (incident, diffraction, radiation) wave forces acting on the device, and the wave capture and energy efficiency performance of this configuration was assessed, both in the time and frequency domain. The performance of the two configurations, single float and double float, were analyzed and

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37

Nguyen, Chi Kien, R. S. Kashaev, and O. V. Kozelkov. "The impulse power unit for a portable proton magnet resonance relaxometer." Power engineering: research, equipment, technology 21, no. 6 (2020): 111–17. http://dx.doi.org/10.30724/1998-9903-2019-21-6-111-117.

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In this paper described the switching power supply (SPS) unit and represented its importance for electronic circuits in electronic devices. SPS directly affect the operation of electrical circuits and electronic equipment. In particular, this paper describes its use in a portable proton-magnetic resonance (PMR) relaxometer. Especial attention is to the method of constructing the circuit, and also deals with the comparense of the SPS with a transformer power source. This article presents the structure of schematic diagram of the SPS. The SPS structure works without a transformer, which reduces

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38

Zahangir, M., Sheroz Khan, I. Adam, K. Abdul Kadir, A. N. Nordin, and S. N. Ibrahim. "A Proposed Resistance-to-Time Converter with Switching Impulse Calibrators for Application in Resistive Bridge Sensors." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 1 (2018): 47. http://dx.doi.org/10.11591/ijeecs.v11.i1.pp47-50.

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Анотація:

This paper presents a simple resistance-to-time converter. It consists of two voltage comparators, a ramp voltage generator, two logic gates and impulse voltage calibrators. A square-wave generator circuit is suggested in this paper. The design is simple and independent of the OPAMP offset issues. The resulting square-wave is rectified to get its DC equivalent and to a triangular output; the two outputs are applied to a comparator for generating a digital output with a duty cycle proportional to a change in resistance upon which is dependent the DC.

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39

M., Zahangir, Khan Sheroz, Adam I., Abdul Kadir K., N. Nordin A., and N. Ibrahim S. "A Proposed Resistance-to-Time Converter with Switching Impulse Calibrators for Application in Resistive Bridge Sensors." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 1 (2018): 47–50. https://doi.org/10.11591/ijeecs.v11.i1.pp47-50.

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Анотація:

This paper presents a simple resistance-to-time converter. It consists of two voltage comparators, a ramp voltage generator, two logic gates and impulse voltage calibrators. A square-wave generator circuit is suggested in this paper. The design is simple and independent of the OPAMP offset issues. The resulting square-wave is rectified to get its DC equivalent and to a triangular output; the two outputs are applied to a comparator for generating a digital output with a duty cycle proportional to a change in resistance upon which is dependent the DC.

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40

Dmitrikov, Vladimir F., Alexander Yu Petrochenko, and Andrey A. Rozanov. "Design features of negative feedback and power smoothing filter of the DC / DC converter with pulse loads for transmitter-receiver modules of active electronically scanned arrays." Physics of Wave Processes and Radio Systems 24, no. 1 (2021): 78–88. http://dx.doi.org/10.18469/1810-3189.2021.24.1.78-88.

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Анотація:

The fundamental difference of the voltage converter of the secondary power supply source for the transmitter-receiver modules of active electronically scanned arrays with impulse load and variable duty cycle from traditional voltage converters that constantly consume power from the primary network is shown. Methods for improving the quality of transient processes in voltage converter with constant power consumption during start-up by soft start are not applicable to improve the quality of transients in periodic current pulses caused by a pulsed load. Since any ripples, noises, instabilities in

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41

Ali, Majid, Ka‐Hong Loo, and Yuk‐Ming Lai. "Non‐intrusive parameter estimation method for autotuned DC–DC converter based on quasi‐impulse response." IET Power Electronics 11, no. 12 (2018): 2019–28. http://dx.doi.org/10.1049/iet-pel.2018.5467.

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42

Sree, K. Radha, and Akshay Kumar Rathore. "Impulse Commutated Zero-Current Switching Current-Fed Push–Pull Converter: Analysis, Design, and Experimental Results." IEEE Transactions on Industrial Electronics 62, no. 1 (2015): 363–70. http://dx.doi.org/10.1109/tie.2014.2331029.

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43

Pu, Zi-Heng, Jiang-Jun Ruan, Ya-Dong Zhang, Zhi-Ye Du, and Qi-Jia Xie. "Wave Process in Scale-Down Model of UHVDC Converter Transformer Under the Lightning Impulse Voltage." IEEE Transactions on Magnetics 51, no. 11 (2015): 1–4. http://dx.doi.org/10.1109/tmag.2015.2438155.

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44

Liu, Zhen, Huan-yu Zhao, and Ying Cui. "Effects of rotor solidity on the performance of impulse turbine for OWC wave energy converter." China Ocean Engineering 29, no. 5 (2015): 663–72. http://dx.doi.org/10.1007/s13344-015-0047-6.

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45

Liu, Xinbo, Yake Zhang, Xiaotong Song, and Yuntao Ju. "Large Signal Stability Analysis of Hybrid AC/DC Microgrids When a Single-Phase-to-Ground Fault Occurs." Electronics 13, no. 7 (2024): 1232. http://dx.doi.org/10.3390/electronics13071232.

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Анотація:

Islanded hybrid AC/DC microgrids lack support for a large grid, and the negative incremental impedance of constant power loads (CPLs) aggravates the poor anti-disturbance capability of the system. When a single-phase ground fault (SPGF) occurs, the amount of fault impulse power that islanded AC/DC hybrid microgrids can stably withstand and when the protection equipment can work are both unknown. In this paper, the method of symmetrical components is utilized, and high-signal stability criteria for islanded hybrid AC/DC microgrids when a SPGF occurs are derived based on the mixed potential theo

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46

Choi, Changhyung, and Jong-Wook Lee. "An 11.8-fJ/Conversion-Step Noise Shaping SAR ADC with Embedded Passive Gain for Energy-Efficient IoT Sensors." Sensors 22, no. 3 (2022): 869. http://dx.doi.org/10.3390/s22030869.

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Herein, we present a noise shaping successive-approximation-register (SAR) analog-to-digital converter (ADC) with an embedded passive gain multiplication technique. The noise shaping moves the in-band quantization noise from the signal band to out-of-band for improved signal-to-noise ratio (SNR). The proposed approach tackles the drawback of the previous active noise shaping (increased power and extra noise) and passive noise shaping (limited noise suppression and signal loss). Both noise shaping and gain multiplication are realized on-chip in an energy-efficient manner without an opamp. This

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47

Zhang, Zhijin, Yuanpeng Zhang, Wei Xiao, Yong Sun, and Xingliang Jiang. "Research on Insulation Configuration of 220 kV Bushing in High-Altitude Polluted Areas." Energies 17, no. 7 (2024): 1645. http://dx.doi.org/10.3390/en17071645.

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Анотація:

The external insulation strength of the power equipment sleeve in the substation and converter station will be reduced with the increase in altitude and atmosphere pollution. The weakness of external insulation seriously threatens the safe operation of electrical equipment. At present, there are few studies and conclusions that focus on the flashover characteristics of power equipment bushing in high-altitude polluted areas. Therefore, this paper takes the 220 kV voltage level bushing as the research object and studies the Alternating Current (AC) pollution flashover characteristics and lightn

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48

Shcherback, Y. V., and K. Y. Ivakina. "FEATURES OF DYNAMIC CHARACTERISTICS OF REGULATION SYSTEMS WITH ONE-SIDED AND TWO-SIDED PULSE-WIDTH MODULATIONS." Tekhnichna Elektrodynamika 2023, no. 2 (2023): 9–20. http://dx.doi.org/10.15407/techned2023.02.009.

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Анотація:

The purpose of the article is: to determine the dynamic properties of automatic control systems of the pulse DC voltage converter with one-way and two-way modulations by studying the influence of the form of the reference signal on dy-namic processes in the systems of automatic control of the output coordinate of the converter with widely used propor-tional (P), integral (I) and proportionally - by integral (PI) regulators. The novelty of the proposed work lies in the de-termination of the influence of one-sided and two-sided pulse width modulation on the stability and conditions of the proces

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49

Ott, A. T., C. J. Eisner, M. D. Blech, and T. F. Eibert. "Reconfigurable ultra-wideband transmitter for generation of arbitrary impulse shapes and modulation schemes." Advances in Radio Science 10 (September 18, 2012): 57–62. http://dx.doi.org/10.5194/ars-10-57-2012.

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Abstract. In this paper a reconfigurable ultra-wideband (UWB) impulse radio (IR) transmitter is presented. The IR signal is synthesized at an intermediate frequency (IF) by employing a multi-Nyquist digital-to-analog converter (DAC) with 12 bit resolution and an update rate of 2.3 GHz. Digital generation of signals in a field programmable gate array (FPGA) guarantees very high flexibility of the reconfigurable design. For upconversion to the radio frequency (RF) band, a first order bandpass (BP) sampling concept and an alternative conventional concept with mixer stages, have been realized. The

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50

Clemente, Carmine Stefano, Immacolato Iannone, Vincenzo Paolo Loschiavo, and Daniele Davino. "Design and Optimization of a Boost Interface for Magnetostrictive Energy Harvesting." Applied Sciences 13, no. 3 (2023): 1606. http://dx.doi.org/10.3390/app13031606.

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Анотація:

Magnetostrictive alloys are very promising for Vibration Energy Harvesting applications to supply power to Wireless Sensor Network (WSN) and Internet of Things (IoT) devices, especially because of their intrinsic robustness. Typically, vibration energy sources are random in nature, usually providing exploitable voltages much lower than the electronic standards 1.6, 3.3 and 5 V. Therefore, a Power Electronic Interface (PEI) is needed to improve the conversion to DC output voltage from AC input over a wide range of frequencies and amplitudes. Very few or no conversion techniques are available fo

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