Results 11 to 20 of about 201,846 (265)
Propagation of wind-power-induced fluctuations in power grids [PDF]
Physical Review E, 2019 Renewable generators perturb the electric power grid with heavily non-Gaussian and time correlated fluctuations. While changes in generated power on timescales of minutes and hours are compensated by frequency control measures, we report subsecond distribution grid frequency measurements with local non-Gaussian fluctuations which depend on the ...
Haehne, Hauke +4 more
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Energies, 2020 The power generated by photovoltaic solar systems is exposed to high variability of irradiance mainly due to weather conditions, which cause instability in the electrical networks connected to these systems. This study shows the typical behavior of solar
Luis Gerardo González +4 more
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The Effect of Electric Power Fluctuations on the Profitability and Competitiveness of SMEs: A Study of SMEs within the Accra Business District of Ghana [PDF]
Journal of Competitiveness, 2014 The economy of Ghana has attained a middle-income status and is seeking to advance; hence, an analysis of the economy based on the supply chain management of energy is significant to provide the quantitative results and comprehensive information about ...
Doe Frederick, Asamoah Emmanuel Selase
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IET Smart Grid, 2019 With increased penetration of wind power units and plug-in electric vehicles (PEVs), their control flexibility and quick response potentially provide an alternative way to fulfil the need for rapid restoration.
Can Zhang +6 more
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Probability distribution of power fluctuations in turbulence [PDF]
Physical Review E, 2009 We study local power fluctuations in numerical simulations of stationary, homogeneous, isotropic turbulence in two and three dimensions with Gaussian forcing. Due to the near-Gaussianity of the one-point velocity distribution, the probability distribution function (pdf) of the local power is well modeled by the pdf of the product of two joint normally ...
M M, Bandi +2 more
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A Bi-Level Control Strategy for PV-BES System Aiming at the Minimum Operation Cost of BES
Frontiers in Energy Research, 2021 With the increased penetration of the photovoltaic (PV) energy, the power system stability problem becomes an issue, as the output power of PV plants has unpredictable fluctuations.
Yuchen Hao, Dawei Su, Zhen Lei
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Short-Term Forecasting of Wake-Induced Fluctuations in Offshore Wind Farms
Energies, 2019 The increasing share of offshore wind energy traded at the spot market requires short term wind direction forecasts to determine wake losses and increased power fluctuations due to multiple wakes in certain wind directions.
Arslan Salim Dar, Lüder von Bremen
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Correlations of power output fluctuations in an offshore wind farm using high-resolution SCADA data [PDF]
Wind Energy Science, 2021 Space–time correlations of power output fluctuations of wind turbine pairs provide information on the flow conditions within a wind farm and the interactions of wind turbines.
J. K. Seifert +3 more
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IEEE Access, 2023 Due to the high penetration of photovoltaic power generation system (PV) anticipated in the future, the curtailment of PV power output becomes crucial, not only to maintain supply-demand balance but also to preserve an adequate capacity for the frequency
Noha Harag +2 more
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Vortex rectenna powered by environmental fluctuations [PDF]
Nature Communications, 2018 AbstractA rectenna, standing for a rectifying antenna, is an apparatus which generates d.c. electricity from electric fluctuations. It is expected to realize wireless power transmission as well as energy harvesting from environmental radio waves. To realize such rectification, devices that are made up of internal atomic asymmetry such as an asymmetric ...
J. Lustikova +9 more
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