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As the percentage of wind energy on the power grid increases, the intermittent nature of this energy source can make it difficult to keep the generation and the load balanced. While wind speed forecasts can be helpful, they can often be inaccurate. In such cases, we are interested in providing the control room operators additional relevant information they can exploit to make well informed scheduling...
This paper investigates the effect of connecting FACTS (Flexible AC Transmission System) device such as a STATCOM (Static Synchronous Compensator) to the point of common coupling (PCC) of a wind farm composed of DFIG. Simulation results show that a FACTS device can effectively enhance the performance of the DFIG, when it is disconnected by the crowbar switch during grid fault by providing additional...
The variability of wind power limits its grid penetration and increases costs. At high penetration levels, the variable output of wind requires utilities to dedicate much of their available reserve generation capacity to accommodate this variability. This paper presents research on improving wind energy integration through more effective coordination of traditional generation resources and energy...
A comparison is conducted on FRT ability of latest Grid Code requirements for wind farm integration between China and selected EU countries. The main causes of the differences are investigated. The author tried to predict the future trend of regulations and illustrate some clues of them.
A research on differences of latest Grid Code requirements for wind farm integration between China and selected EU countries are conducted. The similarities and differences of these Grid Codes in the aspects of active power/frequency control, reactive power/voltage control and fault ride-through capability are compared. The main causes of these differences are investigated and the author tried to...
This paper reports on an overview of the current electricity situation in Namibia that renders it necessary for capacity expansion of electricity generation in order to meet the country's abounding electricity needs. A discussion of the efforts made by the Namibian national power utility, NamPower and the country's government will be presented in the paper, followed by an abbreviated review of on-going...
To effectively harness the power of wind electricity generation, significant infrastructure challenges exist. First, the individual wind turbines must be sited and constructed as part of a wind farm. Second, the wind farm must be connected to the electricity grid infrastructure and the power generated managed accordingly. Due to its stochastic nature, wind energy cannot be controlled; it must be managed...
An in-depth investigation of China's large-scale wind energy development is conducted in the paper. In order to cater for the trend of abating carbon emissions and improving energy efficiency, wind power industry is developing at an astonishing speed in China. The characteristics of China's LSWD are analyzed in the context of its basic national conditions of energy. The mode of long-distance, large...
The Romanian National Energy strategy is requesting that renewables quota to reach 33% of consumption in 2010 and 38% in 2020. One of the most challenging issues facing wind energy today is its maximal and reliable integration in the power markets. Due to transport/distribution grid lack of flexibility and high level of concentration in Dobrogea region of large wind developments the access to the...
Wind energy is rapidly emerging as a substantial contributor to the electricity generation capacity of utilities around the world. While the use of wind power both adds to the electricity supply and offers significant environmental benefits as a renewable source of energy, the stochastic nature of forces that produce wind energy prevents relying on it to meet base load requirements. Intermittent availability...
During recent years, the size of individual wind turbines has grown closer to 10 MW, and the size of wind power plants has increased significantly to 300 MW or more. This growing size of wind power generation requires that careful evaluation of transient stability of the overall grid should be undertaken. This paper attempts to investigate the impact of wind power plant penetration on the transient...
Wind energy has taken off into a new peak in terms of its popularity among other new generation technologies. The socio-economic and environmental benefits impact the general population. A low cost of energy along with grid compatibility can be achieved due to mass production technology, power electronics advancement, and intelligent controllability. This paper attempts to shed the light on many aspects...
Wind energy will continue to grow at a rapid pace and will provide an increasingly large portion of the total electricity generation. To achieve its full potential, the industry needs adequate wind-turbine generator (WTG) dynamic models to determine the impact of adding wind generation, and establish how the system needs to be upgraded.For the most part, WTG manufacturers have sponsored the development...
Renewable energy sources have the great advantage of being able to provide power in rural areas whenever available. A main disadvantage of wind energy generation (WEG) is the variation of its output power with the variation of wind speed. Such variation may lead to significant consequences on the power quality. When a critical load is fed from both the infinite grid and a wind farm, such that, it...
Wind power exploitation development to provide Electricity has had more acceleration in recent years in compare with other sources of providing electrical energy in the world. Since, regions with the potential of wind energy are not necessarily close to consumers, analyzing and modeling of wind farms in order to distribute system load and to study the electrical and mechanical changes of them is important...
An innovative conversion system called synchronous active front-end (SAFE) is considered one of the most efficient solutions that successfully manages the well known trade-off between high power handling and good power quality. In wind energy applications switching converters are used to transfer the captured power to the grid. Their non-linear behavior must be considered, since the injected power...
As the size and number of wind power plants (also called wind farms) increases, power system planners will need to study their impact on the power system in more detail. As the level of wind power penetration into the grid increases, the transmission system integration requirements becomes more critical. A very large wind power plant may contain hundreds of megawatt-size wind turbines. These turbines...
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