Equivalent wind speed method for processing wind electric field static power equivalence dispersion problem

Abstract

The invention discloses an equivalent wind speed method for processing the static power equivalent dispersion problem of a wind power station and the method is characterized by comprising the following steps: analyzing the output dispersion of each wind turbine of the wind power station, carrying out the statistic processing on the actual running data of each wind turbine, analyzing the position differences of each wind turbine and the dispersion of the inside wind energy of the wind power stations which are mutually affected, searching the wind turbine which selects the integral running action and the inside dispersion of the wind power station by the smallest error in a circulating way; confirming the equivalent wind speed, when each wind turbine is arranged in a regular manner, carrying out statistic processing on the wind speed at the locations of the four vertex angles of the wind power station to work out the equivalent wind speed and taking the N times of the output power of the wind turbine under the drive of the equivalent wind speed as the arithmetic of the total output power of the wind power station; adopting an average absolute percentage error to carry out relative analysis on the output of the equivalent model of the wind power station and the actual output of the wind power station based on the error analyzing by using the equivalent wind speed to describe the static behavior equivalence of the wind power station, thus evaluating the precision of the method and the advantages relative to the traditional method.

Description

technical field [0001] The invention relates to the field of equivalent processing of static power of a wind farm, in particular to an equivalent wind speed method for dealing with the dispersion problem of static power equivalence of a wind farm. Background technique [0002] The impact of large-scale grid-connected wind farms on the power system is mainly due to the random fluctuation of its output power, which is also derived from the natural characteristics of wind energy. Due to the difference in wind energy distribution, there is a large difference in the output power of each unit in the wind farm dispersion. At present, the method to study the impact of wind farm grid connection on the system is: firstly establish the equivalent model of wind farm and power grid, and then carry out relevant research through simulation calculation on this basis. Among them, the equivalent model of the power grid has been relatively mature, and the establishment of a wind farm equivale...

AI Technical Summary

Problems solved by technology

Therefore, although the above-mentioned traditional methods are simple, their accuracy is poor, which affects the accuracy of the power supply management department's evaluation of the operation of grid-connected wind farms, is not conducive to rationally arranging production plans according to the actual situation of the grid, and increases the reserve capacity of the system.

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