Wind electricity connection system model based on measured data

Abstract

The invention discloses a wind electricity connection system model based on measured data. The establishment of the model mainly comprises the following steps that operating data, within a preset period, of each wind turbine of a wind electricity plant to be measured are selected; based on the obtained operating data, within the preset period, of each wind turbine of the wind electricity plant, a sampling point wind speed matrix and a sampling point active power matrix are established; based on the obtained sampling point wind speed matrix and the obtained sampling point active power matrix, calculation is conducted, and a wind speed model of the wind electricity plant to be measured is obtained. The wind electricity connection system model based on the measured data can overcome the defects that in the prior art, the problems of dispersion of the wind electricity plant cannot be solved, and the output power error is large and has the advantages of being capable of solving the problem of dispersion of the wind electricity plant and small in output power error.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a wind power access system model based on measured data. Background technique [0002] The operating characteristics of wind power are different from conventional power sources. Its output power depends on the wind speed, which is random, fluctuating and uncontrollable, and the capacity of a single unit is small. Often, a large number of wind power generating units operate in parallel, and a large number of wind farms are connected to the The stable operation of the power grid has brought a certain impact. Therefore, in order to make full use of wind resources, it is necessary to deeply study the technical issues of large-scale wind farm grid-connected operation, which requires the establishment of appropriate models of wind turbines and wind farms. [0003] At present, the mainstream models of wind farms under construction or planned in my country are double-fed w...

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Problems solved by technology

[0011] It can be seen that the traditional wind farm equivalent model cannot solve the dispersion problem of the wind farm, and compared with the actual output power of the wind farm, the error is large

[0012] In the process of realizing the present invention, the inventor found that there are at least some defects in the prior art, such as the inability to solve the dispersion problem of wind farms and the large error of output power.

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