نتایج جستجو برای: wind power potential

تعداد نتایج: 1574507  

2003
A. González E. McKeogh B.Ó. Gallachóir

The deployment of wind energy is constrained by wind uncontrollability, which poses operational problems on the electricity supply system at high penetration levels, lessening the value of wind-generated electricity to a significant extent. This paper studies the viability of hydrogen production via electrolysis using wind power that cannot be easily accommodated on the system. The potential be...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1388

چکیده ندارد.

Journal: :Environmental science & technology 2014
Xi Lu Michael B McElroy Xinyu Chen Chongqing Kang

Although capacity credits for wind power have been embodied in power systems in the U.S. and Europe, the current planning framework for electricity in China continues to treat wind power as a nondispatchable source with zero contribution to firm capacity. This study adopts a rigorous reliability model for the electric power system evaluating capacity credits that should be recognized for offsho...

2012
In-Yong Seo Bok-Nam Ha Sung-Woo Lee Moon-Jong Jang Sang-Ok Kim Seong-Jun Kim

A sustainable production of electricity is essential for low carbon green growth in South Korea. The generation of wind power as renewable energy has been rapidly growing around the world. Undoubtedly, wind energy is unlimited in potential. However, due to its own intermittency and volatility, there are difficulties in the effective harvesting of wind energy and the integration of wind power in...

2005
Cristina L. Archer Mark Z. Jacobson

[1] The goal of this study is to quantify the world’s wind power potential for the first time from data. Wind speeds are calculated at 80 m, the hub height of modern, 77-m diameter, 1500 kW turbines. Since relatively few observations are available at 80 m, the Least Square extrapolation technique is utilized and revised here to obtain estimates of wind speeds at 80 m given observed wind speeds ...

2017
Jiale Li

This paper describes the feasibility analysis of an innovative, extensible blade technology. The blade aims to significantly improve the energy production of a wind turbine, particularly at locations with unfavorable wind conditions. The innovative ‘smart’ blade will be extended at low wind speed to harvest more wind energy; on the other hand, it will be retracted to its original shape when the...

This paper presents modeling, simulation and control of matrix converter (MC) for variable speed wind turbine (VSWT) system including permanent magnet synchronous generator (PMSG). At a given wind velocity, the power available from a wind turbine is a function of its shaft speed. In order to track maximum power, the MC adjusts the PMSG shaft speed.The proposed control system allowing independen...

2004
Magnus Korpås Arne T. Holen

In this paper, local hydrogen energy storage is proposed asan alternative to grid reinforcements in rural areas withhigh wind power potential and weak distribution lines.Present and future production cost estimates of electricityare calculated for different wind-storage systems assumingoptimal operation in a competitive power market. It isshown that hydrogen energy stora...

Due to incremental use of renewable energies, some challenges have been arised in control of wind power systems. One of the important ones is the uncertainty of wind power that affects directly on the cost of utilization. In this paper some algorithms based on the fuzzy logic and neural networks have been implemented to analyze the uncertainty of the wind power using historical data collected f...

2008
D. A. Fadare

Modeling of wind speed variation is an essential requirement in the estimation of the wind energy potential for a typical site. In this paper, the wind energy potential in Ibadan (Lat. 7.43N; Long. 3.9E; Alt. 227.2m) is statistically analyzed using daily wind speed data for 10 years (1995-2004) obtained from the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. The daily,...

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