Results 331 to 340 of about 3,942,784 (376)

Nonlinear Control of Variable Speed Wind Turbines without wind speed measurement [PDF]

open access: possibleProceedings of the 44th IEEE Conference on Decision and Control, 2006
A nonlinear approach, for variable speed wind turbines control, is presented by considering that there is no wind speed measurement. The control objective below rated wind speed is to maximize the extracted energy from the wind while reducing mechanical loads. The existing control techniques do not take into account the dynamical aspect of the wind and
Boukhezzar, B., Siguerdidjane, Houria
openaire   +2 more sources

A Two-Layer Nonlinear Combination Method for Short-Term Wind Speed Prediction Based on ELM, ENN, and LSTM

IEEE Internet of Things Journal, 2019
As a typical kind of the Internet of Things, smart grid has attracted a lot of attentions. The power energy management of smart grid is of great importance for energy distribution, system security, and market economics.
Min-Rong Chen   +3 more
semanticscholar   +1 more source

Development of the CYGNSS Geophysical Model Function for Wind Speed

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Geophysical model functions (GMFs) are developed which map the Level 1 observables made by the Cyclone Global Navigation Satellite System (CYGNSS) radar receivers to ocean surface wind speed.
C. Ruf, Rajeswari Balasubramaniam
semanticscholar   +1 more source

Harvesting Wind Energy by a Triboelectric Nanogenerator for an Intelligent High-Speed Train System

, 2021
The operation cost of an intelligent high-speed train system is greatly increased by the enormous energy demand of large-scale signal and sensor networks.
Chuguo Zhang   +8 more
semanticscholar   +1 more source

Effects of wind direction, wind speed and travel speed on spray deposition

Pesticide Science, 1993
AbstractDeposition variability from a conventional field sprayer, and effects of wind and travel speed were measured by collecting on small artificial targets in the swath. Whilst deposition on 0.1‐m2 plots varied by a factor of 3, deposition on single vertical targets typically varied by a factor of 10 and on horizontal targets by a factor of 6 ...
Ebbe Nordbo   +2 more
openaire   +2 more sources

Assessment of CYGNSS Wind Speed Retrieval Uncertainty

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Measurements of near surface wind speed made by the Cyclone Global Navigation Satellite System (CYGNSS) constellation of GNSS-R satellites are evaluated and their uncertainty is assessed in two ways.
C. Ruf, S. Gleason, D. McKague
semanticscholar   +1 more source

Self-Powered Wind Sensor System for Detecting Wind Speed and Direction Based on a Triboelectric Nanogenerator.

ACS Nano, 2018
The development of the Internet of Things has brought new challenges to the corresponding distributed sensor systems. Self-powered sensors that can perceive and respond to environmental stimuli without an external power supply are highly desirable.
Jiyu Wang   +7 more
semanticscholar   +1 more source

Wind Speed and Direction

1979
Environmental assessment of wind speed and direction under field conditions require sensors that are small and rugged yet with low starting speeds and linear response to a wide range of velocities. The WMO, (1971) contains instrument guidelines for many types of routine meteorological measurements, but more sensitive sensors are often needed for air ...
Leo J. Fritschen, Lloyd W. Gay
openaire   +2 more sources

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.
R. Spee, S. Bhowmik
openaire   +2 more sources

Interval Deep Generative Neural Network for Wind Speed Forecasting

IEEE Transactions on Smart Grid, 2019
In recent years, wind speed forecasting is a challenging task required for the prediction of wind energy resources. As a highly varying data source, wind speed time series requires highly nonlinear temporal features for the prediction tasks.
Mahdi Khodayar   +2 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy