Effective-wind-speed-based wind energy assessment method

Abstract

The invention discloses an effective-wind-speed-based wind energy assessment method, which comprises the following steps of: 1, acquiring data; 2, looking up a table to obtain saturation vapor pressure P(sat) in data processing; 3, calculating air density rho in the data processing; 4, selecting a constant air density value rho0 as a reference value according to the historical air density data of a wind power station; 5, calculating a plurality of effective wind speeds and average wind power density within a minimum time interval in the data processing; 6, converting the effective wind speeds within the minimum time interval into effective wind speeds within any large time interval in the data processing; and 7, performing wind energy assessment within any large time interval in the data processing. By the effective-wind-speed-based wind energy assessment method, the wind energy of the wind power station can be accurately assessed, and the influence of length of a time bucket on a wind energy assessment result can be avoided.

Description

technical field [0001] The invention relates to a wind energy assessment method, in particular to a wind energy assessment method based on effective wind speed. Background technique [0002] The construction and operation of wind farms are predicated on occupying enough wind energy resources. Accurate wind energy resource assessment has a great impact on ensuring the power generation and economic benefits of wind farms. In the process of site selection for a wind farm, it is necessary to investigate the meteorological records of the location over the years, set up an anemometer tower to actually measure the wind speed in the field, and obtain the wind power characteristics of the wind farm through statistics and analysis. [0003] Generally speaking, for various applications in different phases of the wind farm, the time length and time interval of the wind power data that needs to be known are also different. In the operation process of wind farms, in order to formulate l...

AI Technical Summary

Problems solved by technology

And this traditional practice may bring unnegligible errors to wind energy statistics

An obvious adverse consequence is that the wind energy in the same period calculated from the average wind speed at different time scales such as seconds, minutes, and hours is very different and cannot be kept consistent

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