نتایج جستجو برای: wind energy characteristics

تعداد نتایج: 1355053  

2012
S. Avdakovic A. Lukac A. Nuhanovic

Renewable energy systems are becoming a topic of great interest and investment in the world. In recent years wind power generation has experienced a very fast development in the whole world. For planning and successful implementations of good wind power plant projects, wind potential measurements are required. In these projects, of great importance is the effective choice of the micro location ...

ژورنال: انرژی ایران 2019

With population growth and progress of human society and human life needs to energy sources and also environmental pollution caused by fossil fuels, many countries are looking to use clean energy sources. Wind energy is one of them. In this paper was to evaluate the potential of wind energy in Yazd city. After review and analysis of meteorological data from 2011 to 2014 by software, the annual ...

2012
Xiaojuan Han Fang Chen Xiwang Cui Yong Li Xiangjun Li

Wind power parallel operation is an effective way to realize the large scale use of wind power, but the fluctuations of power output from wind power units may have great influence on power quality, hence a new method of power smoothing and capacity optimized allocation based on hybrid energy storage technology is proposed in terms of the uncontrollable and unexpected characteristics of wind spe...

2016
Vishal Vaman Mehtre Shripad Ganapati Desai D. S. Bankar

The rapid depletion of conventional sources for power generation necessitates the need of renewable energy power plants. Renewable sources primarily wind and solar are available free of cost and counts for cleaner source of energy thereby reducing environmental concern. The potential of wind energy needs to be harnessed effectively for optimum power generation. Present research aims at comparis...

Journal: :مهندسی برق و الکترونیک ایران 0
s. ghassem zadeh s. h. hosseini g.b. gharehpetian

a detailed model of wind power station, including double fed induction generator, dfig is presented in this paper. two control mechanisms are included in the model. the inner control system uses stator flux oriented control for the rotor side converter and grid voltage vector control for the grid side converter. the outer control system is used for wind turbine pitch angle. pscad/emtdc is used ...

2013
Eric M. Jensen Ray S. Fertig

As wind turbines continue to grow in size, the wind energy industry increasingly looks to carbon fiber composites as a way to meet demanding weight and stiffness requirements. In general, wind energy carbon fiber tends to be large-tow standard-modulus carbon fiber manufactured as economically as possible. This focus has the potential to produce properties and property distributions unique to wi...

2011
M. Narayana G. A. Putrus M. Jovanovic P. S. Leung S. McDonald

-The output power of a wind energy conversion system (WECS) is maximized if the wind rotor is driven at an optimal rotational speed for a particular wind speed. To achieve this, a Maximum Power Point Tracking (MPPT) controller is usually used. A successful implementation of the MPPT controller requires knowledge of the turbine dynamics and instantaneous measurements of the wind speed and rotor ...

Journal: :مرتع و آبخیزداری 0
طیبه مصباح زاده دانشجوی دکتری بیابان زدایی، دانشکده منابع طبیعی، دانشگاه تهران، ایران حسن احمدی استاد دانشگاه آزاد اسلامی، واحد علوم تحقیقات، تهران، ایران

sand dunes mobility is one of the serious problems in arid regions. since wind regime is one of the important factors in sand dunes formation, its frequency, direction and magnitude can be effective. amount of wind energy and its directional variability (wind regime) have significant control on the morphology and maintenance of aeolian landforms. by recognizing of morphometric and morphodynamic...

Journal: :international journal of environmental research 2011
t.l. graham p.f. hudak

the purpose of this study was to estimate relative potential hazards to birds and bats from wind developments in texas. we compiled lists of rare, threatened, or endangered species, along with their respective ranges in texas. using a geographic information system (gis), we calculated a potential hazard index (phi) for 31 bird and ten bat species based upon the percentage of known or observed ...

2002
A. Feijóo C. Carrillo

the purpose of this paper is to propose methods for statistical assessment of steady-state security in electrical power systems, when influenced by wind energy. Statistical assessment is necessary because wind parks are very variable generation systems, due to characteristics of the wind.

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