Calculation method of on-grid power deviation of wind farm based on mutual verification of wind towers
A technology of deviation calculation and wind measuring tower, which is applied in the direction of calculation, electrical digital data processing, special data processing applications, etc., and can solve the problem that the software analysis error of the comprehensive reduction coefficient of annual grid electricity cannot be reasonably determined.
Active Publication Date: 2017-10-10
CHANGJIANG SURVEY PLANNING DESIGN & RES
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[0031] The purpose of the present invention is to provide a method for calculating the deviation of the wind farm's grid-connected power based on the mutual verification of wind-measuring towers, which overcomes the software analysis error in the comprehensive reduction coefficient of the annual grid-connected power of the existing wind farm and cannot be reasonably determined
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[0063] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the embodiments should not be construed as limiting the present invention, but only as examples, and at the same time, the advantages of the present invention will become clearer and easier to understand.
[0064] Based on the calculation method of the wind farm's grid-connected power deviation based on the mutual verification of wind measuring towers, taking a wind farm as an example, the wind farm is designed to install 24 2.0MW wind turbines with a total installed capacity of 48MW and a hub height of 80m. The designed annual on-grid electricity of the wind farm is 88.91 million kWh, the annual equivalent load hours of the wind farm is 1852h, and the capacity factor is 0.211.
[0065] Step 1: Topographic data of the wind farm area (CON)
[0066] The 1:10000 topographic map of the wind farm site is used, and the 1:2000 topographic map is me...
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The invention discloses a method for calculating the deviation of wind farm grid-connected power based on the mutual verification of wind-measuring towers, wherein step 1: surveying the terrain data of the wind farm area; Complete effectiveness analysis; Step 4: Obtain the measured data of each point; Step 5: Use the topographic data data CON of the wind farm area obtained in Step 1 and Step 2, the roughness data ROU of the wind farm area and other auxiliary data (such as unit parameters etc.), use Meteodyn WT for wind resource simulation analysis; respectively use one of the wind measuring towers to simulate and calculate the wind speed of other wind measuring towers; Step 6: Calculate and calculate the deviation value through the measured data and estimated data; Step 7: Calculate the mutual verification of the wind measuring towers The weighted average error value, where the weight is the effective integrity rate of each tower, obtains the comprehensive error of the entire site, and then calculates the grid power error through the total error ER.
Description
technical field [0001] The invention relates to the reduction analysis of the grid-connected electricity of a wind farm, more specifically, it is a method for calculating the deviation of the grid-connected electricity of a wind farm based on the mutual verification of wind-measuring towers. Background technique [0002] The accurate estimation of the wind farm's annual on-grid electricity is directly related to the benefit level and risk level of the wind farm, and determines the investment direction and investment decision-making of enterprises. [0003] The annual on-grid electricity of wind farms is usually calculated and analyzed in accordance with the method of "Explanation of the National Development and Reform Commission on the Reduction of Wind Power Generation in China": the reduction of wind power generation refers to the analysis of the factors that affect the actual output of wind farms. The value of the reduction in power generation caused by each factor is obt...
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IPC IPC(8): G06F17/50
Inventor 曾杰杨家胜赵鑫刘凯李德胡超
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES