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Relevant bibliographies by topics / Ultra-high-speed generators

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Academic literature on the topic 'Ultra-high-speed generators'

Author: Grafiati

Published: 4 June 2025

Last updated: 23 June 2025

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Journal articles on the topic "Ultra-high-speed generators"

1

Ismagilov, Flur, Viacheslav Vavilov, Ruslan Karimov, and Denis Gusakov. "Thermal Condition and Losses in Ultra-High-Speed Generators." TELKOMNIKA (Telecommunication Computing Electronics and Control) 15, no. 3 (2017): 995. http://dx.doi.org/10.12928/telkomnika.v15i3.6365.

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Flur, Ismagilov, Vavilov Viacheslav, Karimov Ruslan, and Gusakov Denis. "Thermal Condition and Losses in Ultra-High-Speed Generators." TELKOMNIKA Telecommunication, Computing, Electronics and Control 15, no. 3 (2017): 995–1002. https://doi.org/10.12928/TELKOMNIKA.v15i3.6365.

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In this paper ultra-high-speed generators operated in intermittent periodic and short-term mode were considered. Experimental studies of losses depending on frequencies in the magnetic core of microelectromechanical energy converters made from amorphous steel were made. Dependence of the flux density from the temperature in the air gap of the experimental layout of high-coercivity permanent magnets was obtained. Computer modeling of the magnetic field distribution on the cross section of the stator magnetic core of microelectromechanical energy converters were made in the software package Ansoft Maxwell. Dependence of friction losses of the rotor around the air from the air temperature was obtained. Comparisons of losses and efficiency of microelectromechanical energy converters in a cold state and after 10 minutes of operation without cooling were made.

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Ismagilov, Flur R., Vyacheslav E. Vavilov, Ilnar I. Yamalov, and Valentina V. Ayguzina. "TRANSIENTS IN ULTRA-HIGH-SPEED GENERATORS OF MICRO-SIZED GAS TURBINES." Progress In Electromagnetics Research M 59 (2017): 123–33. http://dx.doi.org/10.2528/pierm17060602.

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Wen, Pingping, Zhibao Yuan, Haiping Xu, and Zengquan Yuan. "Structure Optimization of Ultra-Light Power Generation System." Energies 17, no. 5 (2024): 976. http://dx.doi.org/10.3390/en17050976.

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A wide-speed, ultra-light power generation system is a critical power generation unit structure, often because of its high efficiency and power density. Lightness and reliability are two key design indicators within the system, albeit they could lead to contradictory problems, particularly in systems containing prime movers, batteries, generators, rectifiers, and inverters. Ultra-light generator sets are facing more severe problems and contradictions in designing in terms of matching, coordinating, and stabilizing the components in the systems. This paper describes the system design of a low-cost and high-reliability microgenerator set: a gasoline engine, three-phase permanent magnet synchronous generator, rectifier, and inverter. Moreover, the matching relationship between the four parts and the design effect of each part of the power generation system was analyzed, simulated, and tested to verify the effectiveness and feasibility of the so-designed system.

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Bensalah, Amina, Georges Barakat, and Yacine Amara. "Electrical Generators for Large Wind Turbine: Trends and Challenges." Energies 15, no. 18 (2022): 6700. http://dx.doi.org/10.3390/en15186700.

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This paper presents an overview of the emerging trends in the development of electrical generators for large wind turbines. To describe the developments in the design of electrical generators, it is necessary to look at the conversion system as a whole, and then, the structural and mechanical performances of the drive train need to be considered. Many drive train configurations have been proposed for large wind turbines; they should ensure high reliability, long availability and reduced maintainability. Although most installed wind turbines are geared, directly driven wind turbines with permanent magnet generators have attracted growing interest in the last few years, which has been in parallel to the continuous increase of the per unit turbine power. The aim of this work is to present the recent commercial designs of electrical generators in large wind turbines. Both the strengths and weaknesses of the existing systems are discussed. The most emerging technologies in high-power, low-speed electrical generators are investigated. Furthermore, a comparative analysis of different electrical generator concepts is performed, and the generators are assessed upon a list of criteria such as the mass, cost, and mass-to-torque ratio. Within the framework of these criteria, it may help to determine whether the electrical generator is technically feasible and economically viable for high-power wind turbines. Finally, this review could help to determine suitable generators for use in large and ultra-large wind energy systems.

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Hong, Do-Kwan, Dae-Suk Joo, Byung-Chul Woo, Dae-Hyun Koo, and Chan-Woo Ahn. "Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing." Sensors 14, no. 9 (2014): 16117–27. http://dx.doi.org/10.3390/s140916117.

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Sastry, Prof Executive Dean P. N. V. M., and Prof Dean Dr S. Vathsal. "Ultra High multi channel clock frequency(THz, PHz, EHz, ZHz,YHz,XHz,WHz) baud rate speed PRBS Transceiver HDL RTL ASIC Design for Ultra High long Distance Wireless Communication Engineering Smart Computing Products/ Applications." IOSR Journal of VLSI and Signal processing 14, no. 4 (2024): 18–26. http://dx.doi.org/10.9790/4200-14041826.

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The Key Objective is HDL RTL Design Architecture of Ultra high multi Clock Frequency Speed Rate ( MHz, GHz, THz, PHz, EHz, ZHz, etc) Bits Per Second Baud Rate ) P.R.B.S(Pseudo Random Binary Sequence) Transceiver Soft A.S.I.C IP Core product for identification of the property of Different Pseudo Random Binary Sequence Patterns (Seed Words) of 2e 7 -1, 2e10 -1, 2e 15 -1, 2e 23 -1, 2e 31 -1 tapped elements as per C.C.I.T.T-I.T.U Standards and IEEE-754 Single and Double Data Rate Data Precision Standards (32 bit & 64 Bit Data Width ) suited for Very Advanced Futuristic Hi-tech Smart High Speed Long Distance Wireless Digital Communication A.S.I.C Products / Applications like Space/Satellite, Aerospace and Large Data Processing and computing like High Speed Internet and Cloud Computing based Hi-Fi Industrial Data Automation Standard Ultra High Speed Wireless Communication A.S.I.C products and Applications-3G,4G,5G etc. The Multi channel PRBS Transceiver consists Transmitter and receiver of different PRBS patterns- 2e7 -1, 2e10 -1, 2e15 -1, 2e23 -1, 2e31 -1 NRZ. The data input transmitted and received serially in the form bit by bit. These different pattern sequences are Designated as per CCITT ITU 0.151/O.152/O.153 & AT&T Standards. The Aim and purpose of invention of Ultra high multichannel Clock frequency PRBS Transceiver is for transmit and receive data serially by using Tx_in and Tx_out, rxin, rxout signals and The Transceiver is processed the low frequency signal input with different high speed carrier wave frequencies in the form of different PRBS pseudo random binary sequence seed word bit/byte patterns -2e7 -1, 2e10 -1, 2e15 -1, 2e23 -1, 2e31 -1 NRZ and also on receiver side processed with the above patterns. Materials and Methods: Transmission and reception of Data serially based on the Deterministic random seed word pattern methods of different PRBS 2e7 -1, 2e10 -1, 2e15 -1, 2e23 -1, 2e31 -1 tapped sequence Elements and All these PRBS are purely synchronized with Ultra high clock frequency(MHz, GHz, THz, PHz, EHz, ZHz, YHz, XHz, WHz). The Soft IP Core Designed by System Verilog HDL/ Verilog HDL. RTL Design Simulation done by Synopsys VCS 2020.1 software and Altera Model-Sim Software and Logic Design Flow & Synthesis done by Xilinx ISE and Altera Quartus EDA Tools. Results: Generation of Simulation Display and waveform for Ultra High Clock frequency(MHz, GHz, THz, PHz, EHz, ZHz, YHz, XHz, WHz) Synchronized Pseudo Random Binary Sequence (PRBS) Register Transfer Level (RTL) Generators, Transceiver for efficient and effective High Quality Data transmission and Reception of Various tapped sequence patterns for Identification of property of different PRBS patterns2e7 -1, 2e10-1, 2e15-1, 2e23 -1, 2 31 -1 NRZ of Ultra high speed Long distance wireless engineering Applications/ products.

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Qian, Ying Qi, Chang Chun Zhang, Zhong Chao Liu та ін. "A High-Performance Sigma-Delta Modulator in 0.18μm CMOS Technology". Applied Mechanics and Materials 519-520 (лютий 2014): 1085–88. http://dx.doi.org/10.4028/www.scientific.net/amm.519-520.1085.

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Sigma-Delta (∑∆) modulators are commonly used in high-resolution analog-to-digital converters (ADCs). In this paper, a high-performance modulator targeted for ultra-high-frequency (UHF) radio-frequency identification (RFID) zero-intermediate frequency (ZIF) receivers is designed in standard 0.18μm CMOS technology. The modulator has been designed with switched-capacitor (SC) integrators employing gain-boosted operational amplifiers, voltage comparators and nonoverlapping clock generators to satisfy such requirements as high gain, low voltage and wide bandwidth. The behavioral-level modeling and circuit-level design are carried out with MATLAB/Simulink and Cadence/SpectreRF, respectively. Ultimately, the high-speed and low-power realization of a second-order single-bit modulator with an oversampling ratio (OSR) of 32 is presented. Simulation results shown that, from a 1.8V supply, operated at a sampling frequency of 64MHz, a dynamic range of 53.4dB over a signal bandwidth of 1MHz is achieved.

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Wada, Koki, and Nobutaka Kito. "Compact Stochastic Computing Circuits Using the Latching Function of RSFQ Circuits for Computing Polynomials." Journal of Physics: Conference Series 2323, no. 1 (2022): 012032. http://dx.doi.org/10.1088/1742-6596/2323/1/012032.

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Abstract Stochastic computing (SC) is a method of expressing a numerical value by the appearance ratio of 1 in a bitstream to perform an operation. Rapid single flux quantum (RSFQ) circuits can handle SC naturally and operate at ultra-high speed. RSFQ SC circuits are suitable for applications tolerating error. This paper presents a design method of RSFQ SC circuits to calculate polynomials. Using the proposed design method, an internal circuit is designed to feed bitstreams of coefficients from bitstreams of constant to reduce large stochastic number generators. The method inserts storage elements to reduce correlations of signals, and thereby reduce the calculation error of the circuit. Additionally, it minimizes the number of inserted D flip-flops utilizing the latching function of gate inputs of RSFQ logic gates.

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Zhao, Tong, Wenli Xie, Yanqiang Guo, Junwei Xu, Yuanyuan Guo, and Longsheng Wang. "High-Speed Reservoir Computing Based on Circular-Side Hexagonal Resonator Microlaser with Optical Feedback." Electronics 11, no. 10 (2022): 1578. http://dx.doi.org/10.3390/electronics11101578.

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In the current environment of the explosive growth in the amount of information, the demand for efficient information-processing methods has become increasingly urgent. We propose and numerically investigate a delay-based high-speed reservoir computing (RC) using a circular-side hexagonal resonator (CSHR) microlaser with optical feedback and injection. In this RC system, a smaller time interval can be obtained between virtual nodes, and a higher information processing rate (Rinf) can also be achieved, due to the ultra-short photon lifetime and wide bandwidth of the CSHR microlaser. The performance of the RC system was tested with three benchmark tasks (Santa-Fe chaotic time series prediction task, the 10th order Nonlinear Auto Regressive Moving Average task and Nonlinear channel equalization task). The results show that the system achieves high-accuracy prediction, even with a small number of virtual nodes (25), and is more feasible, with lower requirements for arbitrary waveform generators at the same rate. Significantly, at the high rate of 10 Gbps, low error predictions can be achieved over a large parameter space (e.g., frequency detuning in the interval 80 GHz, injected strength in the range of 0.9 variation and 2% range for feedback strength). Interestingly, it has the potential to achieve Rinf of 25 Gbps under technical advancements. Additionally, its shorter external cavity length and cubic micron scale size make it an excellent choice for large-scale photonic integration reservoir computing.

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Books on the topic "Ultra-high-speed generators"

1

Aw, K. Y. PC-based ultra high speed arbitrary waveform signal generator. UMIST, 1994.

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Conference papers on the topic "Ultra-high-speed generators"

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Kourogi, M., B. Widiyatmoko, Seok-Jeong Lee, and M. Ohtsu. "Ultra-high scanning speed optical coherence tomography using optical frequency comb generators." In CLEO 2001. Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest. IEEE, 2001. http://dx.doi.org/10.1109/cleo.2001.947928.

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Krahenbuhl, D., C. Zwyssig, K. Bitterli, M. Imhof, and J. W. Kolar. "Evaluation of ultra-compact rectifiers for low power, high-speed, permanent-magnet generators." In IECON 2009 - 35th Annual Conference of IEEE Industrial Electronics (IECON 2009). IEEE, 2009. http://dx.doi.org/10.1109/iecon.2009.5414964.

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Sato, Eiichi, Toshiyuki Enomoto, Toshiaki Kawai, et al. "Fundamental study on ultra-high-speed tomography system utilizing intense flash x-ray generators." In 28th International Congress on High-Speed Imaging and Photonics, edited by Harald Kleine and Martha Patricia Butron Guillen. SPIE, 2008. http://dx.doi.org/10.1117/12.823077.

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Bauer, Stefan, Balbina Hampel, and Thomas Sattelmayer. "Operability Limits of Tubular Injectors With Vortex Generators for a Hydrogen Fuelled Recuperated 100kW Class Gas Turbine." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56381.

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Vortex generators are known to be effective in augmenting the mixing of fuel jets with air. The configuration investgated in this study is a tubular air passage with fuel injection from one single orifice placed in the side wall. In the range of typical gas turbine combustor inlet temperatures, the performance vortex generator premixers (VGPs) have already been investigated for natural gas as well as for blends of natural gas and hydrogen. However, for highly reactive fuels, the application of VGPs in recuperated gas turbines is particularly challenging because the high combustor inlet temperature leads to potential risk with regard to premature self-ignition and flame flashback. As the current knowledge does not cover the temperature range far above the self-ignition temperature, an experimental investigation of the operational limits of VGPs is currently being conducted at the Thermodynamics Institute of the Technical University of Munich, which is particularly focused on reactive fuels and the thermodynamic conditions present in recuperated gas turbines with pressure ratios of 4–5. For the study presented in the paper, an atmospheric combustion VGP test rig has been designed, which facilitates investigations in a wide range of operating conditions in order to comply with the situation in recuperated micro gas turbines, namely global equivalence ratios between 0.2 and 0.7, air preheating temperatures between 288K and 1100K, and air bulk flow rates between 6–16 g/s. Both the entire mixing zone in the VGP and the primary combustion zone of the test rig are optically accessible. High speed OH* chemiluminescence imaging is used for the detection of the flashback and blow-off limits of the investigated VGPs. Flashback and blow-off limits of hydrogen in a wide temperature range covering the auto-ignition regime are presented, addressing the influences of equivalence ratio, air preheating temperature and momentum ratio between air and hydrogen on the operational limits in terms of bulk flow velocity. It is shown that flashback and blow-off limits are increasingly influenced by auto-ignition in the ultra-high temperature regime.

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Zhang, He, Xiaochen Zhang, Chris Gerada, Michael Galea, David Gerada, and Jing Li. "Armature design of an ultra-high speed PM generator." In 2016 IEEE Conference on Electromagnetic Field Computation (CEFC). IEEE, 2016. http://dx.doi.org/10.1109/cefc.2016.7816059.

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Stumpf, Peter, Rafael K. Jardan, and Istvan Nagy. "Dynamics of different speed controls of ultra high speed induction generator using approximate and accurate model." In 2010 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM 2010). IEEE, 2010. http://dx.doi.org/10.1109/speedam.2010.5544782.

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Wei, Xiaocheng, Liang Yan, Zijian Jin, and Yuchen Zhou. "Ultra High Speed Generator System with Microturbine Engine for Hybrid-powered UAV Application." In 2023 9th International Conference on Fluid Power and Mechatronics (FPM). IEEE, 2023. http://dx.doi.org/10.1109/fpm57590.2023.10565613.

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Rau, Lavanya, Bengt-Erik Olsson, and Daniel J. Blumenthal. "A Multiwavelength RZ Pulse Source Generator Using an Ultra High-Speed All-Optical Wavelength Converter." In Photonics in Switching. OSA, 2001. http://dx.doi.org/10.1364/ps.2001.pthc4.

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Xiangjun, Zhang, Li Gengyao, Liu Hankui, Wang Yijie, and Xu Dianguo. "Study on energy matching methods for ultra high-speed generator system based on qualitative modelling analysis." In 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE 2015-ECCE Asia). IEEE, 2015. http://dx.doi.org/10.1109/icpe.2015.7167917.

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Kryzak, Charles J., Sadeg M. Faris, Kevin E. Meyer, and Gerard A. Mourou. "Transmission Line Designs With a Measured Step Response of 3ps Per Centimeter." In Picosecond Electronics and Optoelectronics. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/peo.1985.thb3.

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In order to effectively exploit the speed-high and high sensitivity potential of both superconducting and electro-optics technologies, proper generation, coupling and propagation of signals with bandwidths in excess of 100 Gigahertz is required. We report on extensive theoretical and experimental investigations of transmission lines of various configuration that was undertaken in order to find an optimum transmission medium which satisfies the ultra-wide bandwidth requirements. The investigation included various substrate thickness and dielectric constants as well as conductor material. We concluded that it is possible to realize transmission line designs capable of supporting bandwidths in excess of 100 Gigahertz if careful attention is paid to the generation and coupling of the ultra-wide bandwidth waveforms, i.e., taking into consideration the radiation and polarization of the fields set up by the generator as well as impedance matching between the generator and the line.

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