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Method for determining capacity of energy storing device accessed to wind power station based on spectrum analysis

An energy storage device and spectrum analysis technology are applied in the field of wind power generation to achieve the effect of improving power quality

Active Publication Date: 2013-07-10
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention proposes a method for determining the capacity of the energy storage device connected to the wind farm, which can quickly and accurately determine the capacity of the energy storage device, and solves the problem of accurate estimation of the capacity of the energy storage device connected to the wind farm

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  • Method for determining capacity of energy storing device accessed to wind power station based on spectrum analysis
  • Method for determining capacity of energy storing device accessed to wind power station based on spectrum analysis
  • Method for determining capacity of energy storing device accessed to wind power station based on spectrum analysis

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] In order to facilitate the description of the principle of the present invention, the sampling value of the wind power generated by a certain wind farm in one year is used here. The sampling value takes hours as the sampling interval, and the wind power per hour is averaged, including all 8760 hours in a year. Wind power data. Correct the wind power data, and filter out the wind power values ​​lower than the cut-in wind speed and higher than the cut-out wind speed to get the corrected wind power data, see figure 1 .

[0018] The horizontal axis of the corrected wind power takes hours as the coordinate, and the vertical axis is the average value of wind power in each hour. The total wind energy in a year is obtained by accumulating by hour. Divide the total wind energy by 8760 to obtain the average wind power

[0019] figure 2 is true figure 1 Co...

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Abstract

The invention discloses a method for determining capacity of an energy storing device accessed to a wind power station based on spectrum analysis, which is used for selecting the capacity of the energy storing device accurately in accordance with the requirement of the cost performance of the energy storing device, thus ensuring that the wind power station has the output characteristics of general power plants effectively, thereby being capable of carrying out the active power control of a power grid by the wind power station, and improving the power quality of local power grids; and the costperformance of the energy storing device which is accessed to the wind power station is high.

Description

technical field [0001] The invention relates to a method for determining the capacity of a wind farm connected to an energy storage device based on frequency spectrum analysis, and belongs to the technical field of wind power generation. Background technique [0002] Wind power generation technology is currently the most promising and most widely used power generation technology among new energy power generation technologies. As the proportion of wind farms in the power system field increases, people have higher requirements for wind power generation technology. In recent years, the requirement of wind farms to have active power regulation capabilities has been widely valued, and the solution is to incorporate energy storage devices with sufficient capacity at the access points of wind farms. Due to the uncertainty of wind resources, it is very difficult to quantitatively select the capacity of storage devices. At present, there is no set of scientific and reasonable quanti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28
CPCY02E10/76Y02E70/30
Inventor 李群周克亮袁晓冬邹志翔丘志鹏
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST