نتایج جستجو برای: wind power

تعداد نتایج: 554233  

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...

Nowadays, increasing the renewable energy applications in power system, especially wind power, has caused higher imbalance probability between generation and demand. Therefore, an accurate estimation of wind farm reserve requirements and the reserve cost reduction in power systems with high wind power penetration is very important. In this paper, the reserve requirements of a wind farm are esti...

The main goal of this paper is to study statistical indices and evaluate AGC indices in power system which has large penetration of the WTGs. Increasing penetration of wind turbine generations, needs to study more about impacts of it on power system frequency control. Frequency control is changed with unbalancing real-time system generation and load . Also wind turbine generations have more flu...

The major problem of wind turbines is the great variability of wind power production. The dynamic change of the wind speed returns the quantity of the power injected to networks. Therefore, wind–thermal generation scheduling problem plays a key role to implement clean power producers in a competitive environment. In deregulated power systems, the scheduling problem has various objectives than i...

Journal: :تحقیقات اقتصادی 0
محمد علی مولایی استادیار دانشکدۀ مدیریت و صنایع دانشگاه صنعتی شاهرود حسین رضائی استادیار دانشگاه پیام نور دامغان دامغان- دانشگاه پیام نور

it is expected that, compared with other power plants, changes in fuel cost for power plants in the deregulated electricity market leads to changes in the generation capacity of wind power plants. to quantify this effect, this article aims at modeling energy generation capacity and supply or distribution of different power plants as opposed to those of wind power plants. the proposed model was ...

Journal: :تحقیقات جغرافیایی 0
مهدی اسدی علیرضا انتظاری

the wind as one of the manifestations of renewable energies is very important for tabernacle instead of fossil fuels. the sistan and baluchestan province, according to its topography and position is one of the best places to build wind power plant. in this research, for potential evaluating of the wind power plants construction were considered different criteria and sub-criteria in the province...

2011
Muldi Yuhendri Mochamad Ashari Mauridhi Hery Purnomo

The Output power of wind turbine is determined by wind speed. The Output power can be adjusted by controlling the generator speed and pitch angle of wind turbine. When the wind speed below the wind turbine rated, the output power of generator can be maximized by controlling the generator speed at point of maximum power coefficient. When the wind speed above the wind turbine rated, output power ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده مهندسی 1387

چکیده ندارد.

Journal: :تحقیقات جغرافیایی 0
مهدی دهقان طزرجانی جغرافیای طبیعی و اقلیم شناسی دانشگاه یزد کمال امیدوار اقلیم شناسی دانشگاه یزد

in the current research, wind energy potential at yazd synoptic stations, which contain wind data with 10 years statistic period and beyond, including yazd synoptic station (1976-2006), tabass (1987-2006), robate poshte badam (1992-2006), bafgh (1993-2006) and marvast (1997-2006), has been studied. wind data were obtained from the recorded data at yazd meteorology organization. the data were re...

Introduction: Energy as a contributor to human well-being plays an important role in the sustainable development of human societies. The growing demand for energy, higher standards of living, global warming, and decreasing fossil fuel resources have focused the global attention on renewable energies (Kaya and Kahraman, 2010). Owing to the rapid development of wind energy extraction technologies...

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