Energy storage system capacity configuration optimizing method capable of enhancing wind power receiving capacity

A technology of capacity optimization configuration and wind power acceptance capacity, applied in the field of wind power generation, can solve obvious problems, increase the burden of power grid peak regulation, affect the safety and economy of the power grid, and achieve the effect of capacity optimization and total revenue

Inactive Publication Date: 2012-07-18
NORTHEAST DIANLI UNIVERSITY +2
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Problems solved by technology

However, at present, the power supply structure in domestic wind power-rich areas is mostly dominated by coal power, with heating units accounting for a high proportion and no or only a few pumped storage power stations. Therefore, when wind power capacity accounts for a certain proportion of grid powe

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  • Energy storage system capacity configuration optimizing method capable of enhancing wind power receiving capacity
  • Energy storage system capacity configuration optimizing method capable of enhancing wind power receiving capacity
  • Energy storage system capacity configuration optimizing method capable of enhancing wind power receiving capacity

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Embodiment Construction

[0042] The method for configuring the capacity of an energy storage system for improving wind power capacity of the present invention will be further described below using the drawings and embodiments.

[0043] This example will take a provincial power grid as an example to analyze the capacity configuration of the energy storage system considering the cost of the battery energy storage system and receiving more income from wind power. Suppose the daily load curve of the power grid is as follows figure 1 As shown, the peak load is 18,500MW, the valley load is 15,000MW, the peak-to-valley difference is 3,500MW, and the valley load time is from 3:30 to 4:06. As shown in 1, its rated output is 20150MW, and the conventional minimum output is 14870MW; the wind power data adopts the corresponding annual total wind power forecast data of the province; the capacity range of the large-scale lithium battery energy storage system is 0.25-25MW h, and the power response is 1-100MW , the b...

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Abstract

The invention relates to an energy storage system capacity configuration optimizing method capable of enhancing wind power receiving capacity. The method is characterized in that by constructing a relation between energy storage capacity and equivalent load peak-valley difference, calculating power grid wind power accepting capacity with limit of downward peak-adjustment capacity, calculating the improvement of wind power accepting capacity of an energy storage system, and optimizing the configuration of energy storage capacity under the premise that the energy storage system has the maximum total income, the problem that the access of large-scale wind power is limited due to restrictions of a network source structure and peak-adjusting capacity can be solved, and the influences of the energy storage cost and the large wind power receiving benefits on the capacity of the energy storage system can be fully considered, so that the capacity of the energy storage system is reasonably optimized, further the income maximization is realized.

Description

technical field [0001] The invention relates to the technical field of wind power generation, and relates to a capacity optimization configuration method of an energy storage system for improving wind power acceptance capacity. Background technique [0002] As the global environmental problems become more and more severe, countries all over the world pay more and more attention to the development and utilization of renewable energy. Vigorously developing and utilizing wind energy is an effective way to achieve sustainable energy development and improve environmental quality. The output power of wind turbines depends on the natural wind speed. Its random, intermittent and uncontrollable characteristics determine that when wind power is connected to the grid, conventional power sources must deal with its power fluctuations to ensure safe and reliable power supply to loads. peak". However, at present, the power supply structure in domestic wind power-rich areas is mostly domi...

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Application Information

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IPC IPC(8): H02J3/28
CPCY02E70/30Y02E10/766Y02E10/76
Inventor 严干贵穆钢谢国强李军徽王健冯晓东王芝茗葛维春
Owner NORTHEAST DIANLI UNIVERSITY
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