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A method and device for detecting an anemometer of a fan

An anemometer and wind turbine technology, applied in the field of wind power research and detection, can solve the problems of multiple human resources and time resources, low maintenance efficiency, measurement accuracy error, etc., to achieve the effect of reducing resource consumption and improving maintenance efficiency

Active Publication Date: 2019-05-17
NEUSOFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anemometer of the fan itself is affected by factors such as working years, various natural environmental factors (such as air humidity, rainfall, air density, air pressure, etc.), and the wake generated by the blades of other fans in the wind field. There will be certain errors, which will undoubtedly lead to a corresponding deviation between the power generation calculated by the system using the measured wind speed value and the actual power generation
The existing technology generally adopts the method of manually repairing the faults of the anemometers of the wind turbines in the wind field on time to reduce the error when the anemometers measure the wind speed. However, manually repairing the faults of the anemometers of the wind turbines on time will consume more human resources and time resources, and the maintenance efficiency is low

Method used

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  • A method and device for detecting an anemometer of a fan
  • A method and device for detecting an anemometer of a fan
  • A method and device for detecting an anemometer of a fan

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Embodiment 1

[0052] Embodiment 1 of the present invention provides a method for detecting anemometers of wind turbines, which can be implemented in various types of computers or upper computers. Accuracy detection and other detections, and then on the basis of fault detection, the detected fault anemometer can be targeted for maintenance, wherein, the wind turbine anemometer to be detected is in the wind field, and the There are multiple wind turbines arranged in the wind farm, and each wind turbine in the wind farm includes a corresponding wind measuring instrument.

[0053] When measuring the wind speed, the anemometer of the fan in the wind field will be affected by the factors of the anemometer itself (such as a long working life and failure, etc.), natural environmental factors, and the wake generated by the blades of other fans in the wind field (also There is the influence of various factors such as the situation that individual fans are not affected by the wake flow), based on this...

Embodiment 2

[0070] This embodiment provides a possible implementation of fault detection for the fan anemometer to be detected, refer to figure 2 , the step 105 can realize the fault detection of the fan anemometer through the following steps:

[0071]Step 1051, judging whether the conditional probability is lower than a predetermined threshold;

[0072] Step 1052: If the conditional probability is lower than the predetermined threshold, it is determined that the anemometer of the wind turbine is faulty, and a fault warning is performed.

[0073] Wherein, the greater the conditional probability, the greater the possibility that the actual wind speed is the wind speed value measured by the anemometer to be detected, so that the measurement accuracy of the anemometer to be detected is higher; otherwise, the condition The smaller the value of the probability, the lower the measurement accuracy of the anemometer to be detected. The instrument has malfunctioned.

[0074] Based on this, thi...

Embodiment 3

[0076] This embodiment elaborates in detail the realization process of a wind turbine anemometer detection method of the present invention, refer to image 3 , the method can be implemented through the following steps:

[0077] Step 301. Obtain the first wind speed value output by the anemometer of the wind turbine to be detected, and obtain the wind direction of the wind field corresponding to the first wind speed value output by the anemometer of the wind turbine, the distance between the wind turbines in the wind field, and the predetermined wind speed. The value of the environmental parameter; the wind field is the wind field where the anemometer of the wind turbine to be detected is located.

[0078] This step obtains the first wind speed value output by the anemometer of the fan to be detected, and obtains the wind direction of the wind field corresponding to the first wind speed value output by the anemometer of the fan, the distance between the fans in the wind field, ...

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Abstract

The invention discloses a method and device for detecting a fan wind meter. The method includes: acquiring the numerical value of first wind speed output by a to-be-detected wind meter, and acquiring the numerical values of corresponding preset influence parameters when the first wind speed is output, wherein the numerical values of the corresponding preset influence parameters include the numerical value of second wind speed output by a strongly-correlated fan when the strongly-correlated fan of the to-be-detected wind meter exists in a wind field, the numerical value of the wind direction of the strongly-correlated fan, and the numerical values of preset environment parameters; calculating the condition probability of the numerical value of the first wind speed on the basis of the numerical values of the preset influence parameters; performing needed detection, such as detection of whether the wind meter fails or not, on the wind meter according to the condition probability. The method has the advantages that whether the wind meter fails or not can be detected effectively, the detected failed wind meter can be maintained in a targeted manner, the resource consumption during corrective maintenance is reduced, and maintenance efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of wind power research and detection, and in particular relates to a detection method and device for an anemometer of a wind turbine. Background technique [0002] Wind energy is the source of all power for wind power generation. In the wind power industry, the measured wind speed value is often used as the basic data for wind power conversion to perform some related calculations, such as using the measured wind speed value to calculate power generation, etc., in order to realize the related strategies of the industry. Therefore, the measurement of relevant wind parameters, especially the measurement of wind speed, is particularly important in this industry. [0003] A main source of wind speed measurement data is the anemometer of the wind turbine (that is, the wind generator, referred to as the wind turbine in the present invention). The anemometer of the fan itself is affected by factors such as working ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/02
CPCG01P21/025
Inventor 周方超江泽浩
Owner NEUSOFT CORP