Results 291 to 300 of about 935,111 (345)

Estimation methods for the variance of Birnbaum-Saunders distribution containing zero values with application to wind speed data in Thailand. [PDF]

PeerJ
Ratasukharom N, Niwitpong SA, Niwitpong S.   +2 more
europepmc   +1 more source

Long-Term Changes in Near-Surface Temperature, Air Humidity, and Wind Speed of the Persian Gulf Region

, 2015
Yu. P. Perevedentsev, K. M. Shantalinskii, Занди Рахман, T.R. Aukhadeev   +3 more
openalex   +1 more source

Performing Magnetic Boundary Modulation to Broaden the Operational Wind Speed Range of a Piezoelectric Cantilever-Type Wind Energy Harvester. [PDF]

Micromachines (Basel)
Liu FR, Zhao LC, Yan G, Zhang WM, Wu ZY, Zhang XL.   +5 more
europepmc   +1 more source

Thermoregulatory responses to air temperature of −5 °C at different wind speeds: significance of strong wind in a mild cold environment

Do-Hee Kim, K. R. Kim, Cho-Eun Lee, Gyeongri Kang, Heeyoung Ju, Jiali Ju, Joo-Young Lee   +6 more
openalex   +1 more source

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Wind speed estimation based variable speed wind power generation

IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200), 2002
Significant variation of the resource kinetic energy, in the form of wind speed, results in a substantially reduced energy capture in a fixed speed wind turbine. In order to increase the wind energy capture in the turbine, variable speed generation (VSG) strategies have been proposed and implemented.
S. Bhowmik, R. Spee
openaire   +1 more source

Bidding Wind Energy Exploiting Wind Speed Forecasts

IEEE Transactions on Power Systems, 2016
In this paper, we address the problem of determining the optimal day-ahead generation profile for a wind power producer by exploiting wind speed forecasts provided by a meteorological service. In the considered framework, the wind power producer is called to take part in the responsibility of system operation by providing day-ahead generation profiles ...
GIANNITRAPANI, ANTONIO, PAOLETTI, SIMONE, VICINO, ANTONIO, ZARRILLI, DONATO   +3 more
openaire   +2 more sources

HIGH WIND SPEED REGIME

2006
Under high wind speed conditions breaking waves disrupt the air-sea interface producing a two-phase zone—air bubbles in water and sea spray in air. This mixed-phase environment changes the regime of air-sea interaction. In this chapter, after reviewing dynamics of air-bubbles and sea spray droplets in detail, the reader is exposed to the idea that ...
Alexander Soloviev, Roger Lukas
openaire   +1 more source

Low wind speed wind generation scheme

Renewable Energy, 1994
Conventional wind generators operating in widely fluctuating wind regimes suffer from low energy conversion efficiencies. In this paper a relatively simple scheme is described for increasing the power output of small wind-driven alternators at low wind speeds.
W. Lawrence, D. Langridge, D. Johnston
openaire   +1 more source

Wind Speed Forecasting in Wind Farm

Applied Mechanics and Materials, 2014
Artificial neural network method was used to forecast the wind speed, and two wind speed forecasting models were built based on BP and RBF neural network methods. 24 hours continuous wind speed forecast was conducted for a single wind turbine in wind farm. The results show that the models built are reasonable and have high prediction accuracy.
Hong Peng Liu, Xiao Di Zhang, Hong Sheng Li, Qing Wang   +3 more
openaire   +1 more source

Robust Wind Speed Estimation and Control of Variable Speed Wind Turbines

Asian Journal of Control, 2018
AbstractIn this work, a robust control scheme for variable speed wind turbine system that incorporates a doubly feed induction generator is described. The sliding mode controller is designed in order to track the optimum wind turbine speed value that produces the maximum power extraction for different wind speed values.
openaire   +2 more sources