Wind energy assessing method based on effective wind speeds

Abstract

The invention discloses a wind energy assessing method based on effective wind speeds, which comprises the step: 1 acquiring data, 2 looking up and obtaining saturated steam partial pressure P (sat) through data processing, 3 calculating air density rho through the data processing, 4 aiming at air density historical data of a wind power farm to select a constant air density value as reference quantity, 5 calculating a plurality of effective wind speeds and average wind power densities within a minimum time interval through the data processing, 6 converting the effective wind speeds within the minimum time interval into effective wind speeds within any large minimum time interval through the data processing, and 7 performing wind energy assessment within the large minimum time interval through the data processing. The wind energy assessing method based on the effective wind speeds can not only accurately assess wind energy of the wind power farm, but also results are not affected by the length of the period of time when the wind energy assessment is performed.

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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