نتایج جستجو برای: wind energy characteristics

تعداد نتایج: 1355053  

2014
S. Swathi

Interfacing converters utilized in connecting energy storage systems like ultra capacitors and battery banks to wind generation systems introduce additional cost and power losses. This paper thus presents an immediate integration theme for ultra capacitors utilized in mitigating short-run power fluctuations in wind generation systems. This theme uses a dual electrical converter topology for eac...

Although fossil fuels consumption may causes to rapid economic growth, but due to related pollutants and its consequences, the world has suffered from climate changes. Moreover, fossil fuel resources such as petroleum, gas, coal and uranium are being exhausted rapidly in the last decades. Therefore, seeking an appropriate as well as low-cost alternative for the above-mentioned energy carriers i...

Journal: :international journal of smart electrical engineering 2013
samaneh pazouki mahmoud-reza haghifam javad olamaei

the biggest challenges faced in big cities are greenhouse gas emission and growing energy needs. efficient utilization of existing infrastructures has a prominent role in response to the challenges. energy hub approach embraces performance of different energy networks. energy hub is defined as a super node in electrical system receiving distinctive energy carriers such as gas and electricity in...

Journal: :journal of modern processes in manufacturing and production 0
javad shahbazi karami faculty of mechanical engineering, shahid rajaee teacher training university, tehran, iran hamed bakhtiarizade department of mechanical engineering, iran university of science &technology, tehran, iran mohsen shahmoradi department of mechanical engineering, maleke-ashtar university of technology, isfahan, iran

development of new technologies and combined with creativity and innovation, plays the fundamental role in developing of any community′s value. thus, in this research the design and production of hydroforming device was introduced. one of the best and most efficient technologies in the world of metal forming is wind turbine blade producing with hydroforming method which seems as an innovative m...

2016
Muhammad Shoaib Imran Siddiqui Shafiqur Rehman Saif Ur Rehman Shamim Khan

Proper knowledge of the wind characteristics of a site is of fundamental importance in estimating wind energy output from a selected wind turbine. The present paper focuses on assessing the suitability and accuracy of the fitted distribution function to the measured wind speed data for Baburband site in Sindh Pakistan. Comparison is made between the wind power densities obtained using the fitte...

2014
Shubham Khandelwal Nikhil Bhugra Ketan P Detroja

With the increasing penetration of wind energy into power system, wind energy conversion systems (WECSs) should be able to control the power flow for limited as well as maximum power point tracking. In contrast to the traditional pitch angle control, this paper focusses on field oriented speed control of permanent magnet synchronous generator (PMSG) for controlling the active power flow based o...

Due to increasing expansion of energy consumption and also the decrease and tendency towardsending fossil energy reserves, the current energy cycle needs to use alternative energy speciallywind energy, because it’s considerably cheaper than other recycling sources. The presentresearch investigates suitable possibility of exploiting wind energy to create wind power stationin Soltanieh zone of Za...

Journal: :international journal of smart electrical engineering 2013
reza khanzadeh mahmoud reza haghifam

as renewable energy increasingly penetrates into power grid systems, new challenges arise for system operators to keep the systems reliable under uncertain circumstances, while ensuring high utilization of renewable energy. this paper presents unit commitment (uc) which takes into account the volatility of wind power generation. the uc problem is solved with the forecasted intermittent wind pow...

ژورنال: انرژی ایران 2018

Wind is one of the cleanest and cheapest renewable energies. One of the wind energy production technologies is use of small wind turbines installed in urban areas. However, installing these turbines in urban areas is associated with problems such as low wind speed and turbulence but if installed in the wrong location, their generated electricity is zero. In this study for the use of wind energy...

2012
Hui Hu Zifeng Yang Partha Sarkar

An experimental study was conducted to characterize the dynamic wind loads and evolution of the unsteady vortex and turbulent flow structures in the near wake of a horizontal axis wind turbine model placed in an atmospheric boundary layer wind tunnel. In addition to measuring dynamic wind loads (i.e., aerodynamic forces and bending moments) acting on the wind turbine model by using a high-sensi...

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