نتایج جستجو برای: wind systems
تعداد نتایج: 1256864 فیلتر نتایج به سال:
Sustainability is of great importance due to increasing demands and limited resources. Many problem classes in sustainable energy systems are data mining, optimization, and control tasks. In this work we demonstrate how techniques from computational intelligence can help in solving important tasks in sustainable energy systems. We will show how statistically sound wind models can be estimated w...
Increasing turbine up-time and reducing maintenance costs are key technology drivers for wind turbine operators. Components within wind turbines are subject to considerable stresses due to unpredictable environmental conditions resulting from rapidly changing local dynamics. Systems health management has the aim to assess the state-of-health of components within a wind turbine, to estimate rema...
A systems level analysis of precision aerial delivery systems provides a basis for comparing the characteristics of different types of systems and the implications that component and control approach selection have on system performance. High-glide and low-glide systems types are described. The effects of glide ratio, control response and sensor selection on terminal accuracy are analyzed. Wind...
Due to the intermittency of wind power generation, it is very hard to manage its system operation and planning. In order to incorporate higher wind power penetrations into power systems that maintain secure and economic power system operation, an accurate and efficient estimation of wind power outputs is needed. In this paper, we propose the stochastic prediction of wind generating resources us...
MEDEX is a fuzzy expert system for nowcasting gale-force winds in the Mediterranean. Kuciauskas et al. (1996) and Hadjimichael et al. (1996) have described, respectively, the general development and fuzzy aspects of MEDEX, which focuses on topographically-channeled winds that occur under certain synoptic conditions. As such, a key synoptic input to MEDEX is the 500 mb circulation pattern affect...
Wind power is currently the fastest growing renewable energy application in the United States. Many regions, however, such as the state of Florida, do not have high enough average wind speeds for wind power to be economically feasible. Nevertheless, Florida's extensive coastline may present the opportunity for implementing offshore wind technology. Offshore winds are typically stronger due to t...
Renewable energy sources are gaining high prominence in today’s world. However, these sources do not supply energy throughout the year and hence efficiency is required when extracting energy from them. Wind energy is a recently developing area of common interest. Efficiency of a wind turbine is however, very low. Hence, detection of fault in the system becomes very essential so as to increase t...
The powerful wind-wind collision in massive star binaries creates a region of high temperature plasma and accelerates particles to relativistic energies. I briefly summarize the hydrodynamics of the wind-wind interaction and the observational evidence, including recent γ-ray detections, of non-thermal emission from such systems. I then discuss existing models of the non-thermal emission and the...
2. Warm core systems are equivalently barotropic because the thickness and mass fields align as vertically-stacked structures. The resulting lack of thickness advection by the geostrophic wind prevents any conversion of zonal available potential energy (PM) to eddy available potential energy (PE) by the geostrophic wind thus precluding any quasigeostrophic baroclinic instability for warm core s...
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