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Analysis of Voltage Fluctuations in Power Networks
IEEE Transactions on Instrumentation and Measurement, 2008Voltage fluctuations analysis is one of the basic elements of power quality assessment in the power network. Presently, two voltage fluctuations measures are used-voltage fluctuations indexes and short-term Pst and long-term Plt flicker severity indicators. The voltage fluctuations indexes describe the variability of the root-mean-square (rms) value by
Grzegorz Wiczynski
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Regulation strategies for mitigating voltage fluctuations induced by photovoltaic solar systems in an urban low voltage grid [PDF]
International Journal of Electrical Power and Energy Systems, 2022 Transient clouds cause rapid changes in the power output of Photovoltaic (PV) solar systems. These ramp rates may lead to power quality problems, such as voltage fluctuations, in the low-voltage (LV) electricity grid.
Lennard Visser +2 more
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Characteristics of voltage fluctuations induced by household devices and the impact on LED lamps [PDF]
International Journal of Electrical Power and Energy Systems, 2022 The aim of the paper is to describe the characteristics of voltage fluctuations induced by household devices in low voltage (LV) networks as well as the impact produced in the LED lamps’ flicker.
Elena Gutierrez-Ballesteros +2 more
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Dependence of Voltage Fluctuation Severity on Clipped Sinewave Distortion of Voltage
IEEE Transactions on Instrumentation and Measurement, 2021The article presents the novel findings on the dependence of voltage fluctuation severity on voltage distortion caused by power electronic loads. The results indicate the need to modify the recommended limitation of the IEC flickermeter bandwidth to cut-off frequency at least 450 Hz by the IEC standard, to consider the possible obnoxious voltage ...
Piotr Kuwalek, Grzegorz Wiczynski
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Voltage Fluctuations of Neural Membrane
Nature, 1967THE resting membrane potential of the frog Ranvier node shows fluctuations for which, between 1 and 10,000 rad/sec, the power/cycle of bandwidth is inversely proportional to frequency (1/f noise), and for frequencies of less than about 1 rad/sec there may be an increase in the negative slope of the plot of log noise power against log frequency1,2. This
A A, Verveen, H E, Derksen, K L, Schick
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Voltage Fluctuations in Neurons: Signal or Noise?
Physiological Reviews, 2011Noise and variability are fundamental companions to ion channels and synapses and thus inescapable elements of brain function. The overriding unresolved issue is to what extent noise distorts and limits signaling on one hand and at the same time constitutes a crucial and fundamental enrichment that allows and facilitates complex adaptive behavior in an
Yarom, Yosef, Hounsgaard, Jorn
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Spontaneous Voltage Fluctuations in Glass Microelectrodes
IEEE Transactions on Biomedical Engineering, 1971The spontaneous fluctuations of voltage across a glass microelectrode have been studied as a function of the average difference in voltage (V) across the electrode and the concentration of internal (n 2 ) and external (n 1 ) salt solutions. A stationary fluctuation was observed, with a mean square value many times greater than that calculated from the ...
L J, DeFelice, D R, Firth
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Analysis of transient voltage fluctuations in FPGAs
2016 International Conference on Field-Programmable Technology (FPT), 2016Due to recent technology scaling trends and increased circuit complexity, process and runtime variabilities are becoming major threats for correct circuit operation. Among these, transient voltage fluctuations appear to be the most critical issue, accounting for the biggest component of timing margin, at increased cost.
Dennis R. E. Gnad +3 more
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Experimental study of the response of efficient lighting technologies to complex voltage fluctuations [PDF]
International Journal of Electrical Power and Energy Systems, 2014 The replacement of incandescent lamps with more energy-efficient lighting technologies has a direct influence on the way flicker is measured. The International Electrotechnical Commission (IEC) established in the 61000-4-15 standard the functional ...
I Azcarate +2 more
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