Online checking method for wind indicators of wind driven generators

A technology for wind turbines and wind turbines, which is applied in the control of wind turbines, wind turbines, and wind power generation, etc., can solve the problems of many losses and difficult work, and achieve the goal of reducing costs, prolonging calibration periods, and improving verification efficiency. Effect

Inactive Publication Date: 2019-10-01
HUADIAN ELECTRIC POWER SCI INST CO LTD
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  • Abstract
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Problems solved by technology

[0003] On the other hand, it is difficult to calibrate the wind vane on a regular basis, and the loss is high. There is an urgent need for a convenient, feasible, convenient and non-affecting wind turbine operation.

Method used

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  • Online checking method for wind indicators of wind driven generators

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0017] see figure 1 , the online checking method that is used for wind generator anemometer in the present embodiment, the process is as follows:

[0018] Determine and compare the wind power generator groups according to the initial conditions;

[0019] The initial conditions of the comparison of the wind turbine group must meet the following conditions at the same time: (1) The dispersion coefficient of each unit time in the historical wind speed data measured by the anemometer of each wind turbine in the comparison of the wind turbine group is less than or equal to 5%; (2) The ratio of the hub height standard deviation of each wind turbine in the compared wind turbine group to the average value is less than or e...

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Abstract

The invention discloses an online checking method for a wind indicator of a wind driven generator. The method comprises the following steps that a compared wind generating set group is determined according to initial conditions; the initial conditions of the compared wind generating set group need to meet some conditions at the same time; and through comparison, a wind indicator of a single wind driven generator A is identified as a secondary supervision object or a primary supervision object. According to the method, the working state of the wind indicators can be checked without stopping thewind driven generators, the wind indicator states of the wind driven generators can be evaluated in groups and batches, and the checking efficiency is improved; and a defective wind indicator is focused for checking while the calibration period of a wind indicator with stable performance can be prolonged, the fine calibration is achieved, and the cost is reduced.

Description

technical field [0001] The invention relates to a checking method for a wind direction indicator, in particular to an online checking method for a wind direction indicator of a wind power generator. Background technique [0002] The main function of the wind direction indicator of the wind turbine is to participate in the control of the wind turbine to obtain the best windward side, or force the adjustment of the windward side to obtain the best operating efficiency, or sacrifice part of the operating efficiency to avoid the flow around the rear exhaust fan. Therefore, the calibration of the anemometer of the wind turbine becomes very important, such as the Chinese patent application number 201810469729.1. [0003] On the other hand, regular calibration of the wind vane is difficult and involves a lot of losses. There is an urgent need for a convenient, feasible and convenient method for checking the status of the wind vane without affecting the operation of the wind turbine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04G06F17/18
CPCF03D7/0204F03D7/043G06F17/18Y02E10/72
Inventor 薛志鹏汪玥赵敏敏孙宇杨帆张雯雯
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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