Effective-wind-speed-based wind energy assessment method

An effective wind speed, wind speed and wind direction instrument technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as large differences in wind energy, wind energy statistical errors, and inability to maintain consistency

Active Publication Date: 2012-06-13
CHENGDU FORWARD TECH
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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 p

Method used

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  • Effective-wind-speed-based wind energy assessment method
  • Effective-wind-speed-based wind energy assessment method
  • Effective-wind-speed-based wind energy assessment method

Examples

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Embodiment Construction

[0027] In order to describe the technical content, structural features, goals and effects of the present invention in detail, the following examples are given and described in detail with accompanying drawings.

[0028] A wind energy assessment method based on the effective wind speed of the present invention is applicable to air density within a certain period of time relatively constant, and the air density In the case where changes in wind energy assessment have a particularly small impact, the method specifically includes the following steps:

[0029] Step 1: Data Acquisition

[0030] The specific data of the wind farms are collected as follows: through the anemometer, the instantaneous wind speeds in the windward direction of several wind farms are evenly collected within a period of time v , Collect the air thermodynamic temperature T of the wind farm through the temperature sensor, collect the air humidity of the wind farm through the humidity sensor ?, collect the...

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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...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 苗强柴建云
Owner CHENGDU FORWARD TECH
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