Showing 101 - 110 of 204
Wind Turbines (WT) are one of the fastest growing sources of power production in the world today and there is a constant need to reduce the costs of operating and maintaining them. Condition monitoring (CM) is a tool commonly employed for the early detection of faults/failures so as to minimise...
Persistent link: https://www.econbiz.de/10011044303
A genetic algorithm approach is employed to obtain optimal placement of wind turbines for maximum production capacity while limiting the number of turbines installed and the acreage of land occupied by each wind farm. Specifically, three cases are considered—(a) unidirectional uniform wind,...
Persistent link: https://www.econbiz.de/10011044574
This paper presents some technical details, operational experiences, and lessons learnt by the Colombian public utility – Empresas Públicas de Medellín – with a recently installed 19.5MW wind park in the northern region of Colombia – province of La Guajira. This is the first ever wind...
Persistent link: https://www.econbiz.de/10011044759
The wind speed and direction as well as the availability, the duration and the diurnal variation of two offshore sites, Zakinthos and Pylos (BZK and BPY) in the Ionian Sea were assessed. For an analysis period of two years, the mean wind speed at 10m was determined as 5.7±0.1ms−1 and...
Persistent link: https://www.econbiz.de/10011044850
This contribution presents the application of a portfolio of forecasters to the problem of wind speed forecasting. This portfolio is created using a single time series and it is based on a number of time series characteristics, previously proposed, and a set of novel time series features. The...
Persistent link: https://www.econbiz.de/10011045378
The problem of designing a nonlinear feedback control scheme for variable speed wind turbines, without wind speed measurements, in below rated wind conditions was addressed. The objective is to operate the wind turbines in order to have maximum wind power extraction while also the mechanical...
Persistent link: https://www.econbiz.de/10011046122
Wind turbines (WT) are socially controversial because of their visual and acoustic impacts. Today, visual impact is studied through photomontages and virtual environments while acoustic impact is rather evaluated through technical studies. This paper aims to study the landscape of WT in situ...
Persistent link: https://www.econbiz.de/10011046272
A substantial number of wind energy projects have been stalled or abandoned in the United States of America (US) due to concerns over the effects of wind turbines on radar installations. Between 2008 and 2010, military, airspace, or meteorological radar concerns in the US contributed to the...
Persistent link: https://www.econbiz.de/10011046337
This study documents and analyzes the role of health risk perceptions and other associated concerns of wind energy development (henceforth WED) in Ontario. Drawing on the risk society framework, we conduct a longitudinal media content analysis to document and analyze perceptions of and responses...
Persistent link: https://www.econbiz.de/10011047378
Of all the renewable energy sources (RESs)―except direct solar heat and light―wind energy is believed to have the least adverse environmental impacts. It is also one of the RES which has become economically affordable much before several other RESs have. As a result, next to biomass (and...
Persistent link: https://www.econbiz.de/10011049141