Results 161 to 170 of about 74,290 (194)

The response of rectifiers to fluctuation voltages

Institution of Electrical Engineers - Proceedings of the Wireless Section of the Institution, 1937
This paper is concerned with the response of square-law and linear rectifiers to fluctuation voltages. Analyses of the square-law rectifier and of the linear rectifier in the presence of a dominant harmonic voltage are given. The analyses include the limitations imposed on the output by pre-rectification and post-rectification amplifiers, and are ...
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SMES Based Dynamic Voltage Restorer for Voltage Fluctuations Compensation

IEEE Transactions on Applied Superconductivity, 2010
This paper presents a superconducting magnetic energy storage (SMES) based dynamic voltage restorer (DVR) to protect consumers from the grid voltage fluctuations. Due to the characteristic of high energy density and quick response, a superconducting magnet is selected as the energy storage unit to improve the compensation capability of DVR.
null Jing Shi, null Yuejin Tang, null Kai Yang, null Lei Chen, null Li Ren, null Jingdong Li, null Shijie Cheng   +6 more
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The representation and computation of fluctuation voltages

Journal of the Institution of Electrical Engineers, 1939
Much has been written concerning the fundamental physics of fluctuation phenomena, but the methods to be used in computing signal/noise ratio in the complex circuits of modern communication engineering have never been fully described. This paper gives particulars of two methods by which such computations can be made by the ordinary processes of circuit
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Fluorescent lamp modelling for voltage fluctuations

European Transactions on Electrical Power, 2001
AbstractThe wide use of fluorescent lamps means their influence on the power system needs to be studied. A set of models that enables the evaluation of the electrical behaviour during steady state is presented in this paper. These models have different levels of complexity; starting by taking into account all the non‐linearities of the lamp, passing ...
C. Carrillo, J. Cidrás
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Voltage fluctuations of metal-electrolyte interfaces in electrophysiology

Medical & Biological Engineering, 1966
In addition to wide band thermal noise, metal-electrolyte interfaces generate spontaneous voltage fluctuations of electrochemical origin. They range in duration from less than 100 msec to more than several seconds. Special activities are spikes and semi-periodic oscillations. Amplitudes are usually below 1 mV on macroscopic specimens.
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Voltage fluctuations in mesoscopic structures of bismuth

Solid State Communications, 1990
Abstract The resistance fluctuations with magnetic field in mesoscopic wires of bismuth have been investigated. The wires show conductance fluctuations (dG) and antilocalization effects, and show voltage fluctuations in Hall measurements at 4.2K and 1.5K.
Y. Liu, R.S. Zheng, S. Takaoka, K. Murase, K. Gamo, S. Namba   +5 more
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Compensation of voltage fluctuations to industrial customers

2017 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) & 2017 Intl Aegean Conference on Electrical Machines and Power Electronics (ACEMP), 2017
This paper compares three possibilities for determining the flicker level generated by industrial customer with arc furnaces: by calculating the electromagnetic perturbations, by experimental measurements, and by simulation using specialized software. The influence of the fault level on the propagation of perturbation in the power system represents a ...
Stefan Gheorghe, Nicolae Golovanov, George-Cristian Lazaroiu, Gabriel Gheorghe, Oana Ceaki, Luminita Elefterescu   +5 more
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Mesoscopic Voltage Fluctuations in Luttinger Liquids

Physical Review Letters, 1997
In this Letter, the mesoscopic voltage and conductance fluctuations of a Luttinger liquid are examined. For quasiballistic wires, one finds that the amplitude of conductance fluctuations, i.e., $\mathrm{Var}(G)$, is proportional to ${T}^{4g\ensuremath{-}5}$ where $g\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}\ensuremath{\pi}\ensuremath{\Elzxh}v(\
Scot R. Renn, Daniel P. Arovas
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Voltage control and voltage fluctuations in distributed resource interconnection projects

IEEE PES T&D 2010, 2010
Distributed resources (DR) are connected to distribution feeders, and may have a significant impact on steady-state voltage control, light flicker, and transient or temporary overvoltages. The impacts depend on DR interconnection techniques, power variation profiles, and product characteristics.
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The Effect of Fluctuation Voltages on the Linear Detector

Proceedings of the IRE, 1942
A mathematical analysis of the effect which fluctuation voltages have on the operation of a linear detector is presented. Expressions for the audio-frequency noise spectra and the root-mean-square values of the audio noise outputs under various conditions of operation are derived.
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