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Anemometer fault-tolerant control method and device, and wind power farm controller

A fault-tolerant control and anemometer technology, which is applied in the control of wind turbines, wind energy generation, and monitoring of wind turbines, can solve the problem of large errors in wind speed estimation, and achieve the effects of improving accuracy, increasing annual power generation, and ensuring safety.

Active Publication Date: 2019-03-12
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of the existing methods, the present invention proposes an anemometer fault-tolerant control method, device and wind farm controller of a wind power generating set to solve the problem of large errors in wind speed estimation in the prior art

Method used

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  • Anemometer fault-tolerant control method and device, and wind power farm controller
  • Anemometer fault-tolerant control method and device, and wind power farm controller
  • Anemometer fault-tolerant control method and device, and wind power farm controller

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Embodiment 1

[0046] figure 1 It is a flow chart of the fault-tolerant control method for the anemometer of the wind power generating set according to Embodiment 1 of the present invention. The execution subject of this method is the wind farm controller, such as figure 1 As shown, it includes the following steps:

[0047] S110: Determine at least one adjacent wind power generating set corresponding to each target wind power generating set according to the wind speed correlation coefficients between two wind power generating sets in the wind farm.

[0048] S120: Send the unit identifications corresponding to at least one adjacent wind power generating set and the wind speed correlation coefficient between each adjacent wind power generating set and the target wind power generating set to the target wind power generating set.

[0049] S130: Send respective instantaneous wind speed information of at least one adjacent wind power generating set corresponding to the faulty wind generating set...

Embodiment 2

[0055] figure 2 It is a flow chart of the fault-tolerant control method for the anemometer of the wind power generating set according to the second embodiment of the present invention. The subject of execution of the method is a wind power generating set, such as its master controller or an independent device communicatively connected with the master controller, such as figure 2 As shown, it includes the following steps:

[0056] S210: Obtain the unit identification of at least one adjacent wind generating set corresponding to the current generating set, and the wind speed correlation coefficient between each adjacent wind generating set and the own wind generating set.

[0057] S220: When the anemometer failure occurs in the wind power generating set, obtain the respective instantaneous wind speed information of at least one adjacent wind power generating set corresponding to the wind power generating set.

[0058] S230: According to the respective instantaneous wind spee...

Embodiment 3

[0075] The above-mentioned two embodiments are described in more detail by specific examples below:

[0076] image 3 It is the calculation process of the wind farm controller in the embodiment of the present invention. like image 3 shown, including the following steps:

[0077] Step S310: Load the following operating data information of all wind power generators (units for short) in the wind farm in the past 30 days: instantaneous wind speed, wind turbine operating status (for example, including shutdown status, standby status, startup status, acceleration status, grid-connected power generation state), the fault flag of the anemometer, the speed of the wind turbine, and the pitch angle position of the three blades of the fan (the pitch angle position can be roughly determined by the speed, and can also be determined by the power). The above data are all at the same time The 1s data under the poke is considering the bandwidth capability of wfc. Clean out all non-operatin...

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Abstract

The embodiment of the invention provides an anemometer fault-tolerant control method and device, and a wind power farm controller. The anemometer fault-tolerant control method comprises the steps thatone or more adjacent wind generating sets corresponding to each target wind generating set are determined according to the wind speed correlation coefficient between every two wind generating sets ina wind power farm; set identification corresponding to one or more adjacent wind generating sets and the wind speed correlation coefficient between each adjacent wind generating set and the corresponding target wind generating set are sent to the target wind generating set; and instantaneous wind speed information of each of one or more adjacent wind generating sets corresponding to a faulty windgenerating set is sent to the faulty wind generating set subjected to anemometer fault. By conducting redundancy on the anemometer fault, the annular generating capacity can be increased, and set safety can be ensured.

Description

technical field [0001] The present invention relates to the technical field of wind power generation. Specifically, the present invention relates to a fault-tolerant control method and device for an anemometer of a wind power generating set, and a wind farm controller. Background technique [0002] With the increasing maturity of wind turbine control technology, the research direction has been developed towards refinement such as energy saving and power increase. Among them, the fault tolerance technology of wind turbines has become one of the important means to increase the effective working hours of wind turbines. Fan anemometer failure is currently a more prominent type of failure. This fault occurs frequently, and once it occurs, it needs to be shut down. Wind speed estimation is a practical method as a substitute for a failed anemometer, thereby completing anemometer fault tolerance. [0003] The inventor found in the process of realizing the present invention that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00F03D7/04
CPCF03D7/0224F03D7/048F03D17/00Y02E10/72
Inventor 刘忠朋
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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