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Method of automatically calculating power curve limit for power curve monitoring of wind turbine

一种风力涡轮机、功率曲线的技术，应用在风力发动机的监控、风力发动机的控制、风力发动机等方向，能够解决K-NN模型精度降低等问题，达到可靠性和经济可行性最大化的效果

Active Publication Date: 2015-04-15
KOREA ELECTRIC POWER CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] However, the accuracy of the K-NN model for data mining techniques proposed by the Intelligent Systems Laboratory may be significantly reduced due to erroneous data

Method used

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  • Method of automatically calculating power curve limit for power curve monitoring of wind turbine
  • Method of automatically calculating power curve limit for power curve monitoring of wind turbine
  • Method of automatically calculating power curve limit for power curve monitoring of wind turbine

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Embodiment Construction

[0058] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0059] It should be noted that the drawings are not to exact scale and may be exaggerated in the width of lines or the size of components for descriptive convenience and clarity. In addition, the terms used herein are defined by considering the functions of the present invention, and may be changed according to user's or operator's habit or intention. Accordingly, definitions of terms should be made in light of all disclosures set forth herein.

[0060] Figure 4 is a block diagram of an apparatus for implementing a method of automatically calculating a power curve limit for power curve monitoring of a wind turbine according to an embodiment of the present invention.

[0061] refer to Figure 4 , the device for realizing the method for automatically calculating the power curve limit for the power curve monitoring of wind turbines according to an embod...

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Abstract

The present invention provides a method of automatically calculating a power curve limit for the power curve monitoring of a wind turbine that may set an optimal power curve limit by automatically calculating a power curve limit for power curve monitoring even if wind speed-power data measured at a wind turbine includes a large amount of abnormal data in addition to normal data. To this end, the present invention includes: classifying, by an input data classifying unit, the input data on wind power generation through a variable speed bin; calculating, by a power calculating unit, a power average value and standard deviation for each bin for the classified input data; estimating, by a power curve estimating unit, a power curve for the calculated power average value for each bin; searching for, by a limit searching unit, an accurate power curve limit while moving the estimated power curve; and setting, by a data extracting unit, the data included in the accurate power curve limit as new input data.

Description

technical field [0001] The present invention relates to a method for automatically calculating the power curve limit for the power curve monitoring of a wind turbine, and in particular to such a method for automatically calculating the power curve limit for the power curve monitoring of a wind turbine, which can exclude A large amount of error data included in the wind speed-power data measured in the wind, and automatically calculate the optimal power curve limit for power curve monitoring. Background technique [0002] Generally, wind farms must work efficiently and stably. For this purpose, supervisory control and data acquisition (SCADA) systems and condition monitoring systems (CMS) are used as representative key operating technologies. [0003] SCADA systems for operating wind farms are computer-based systems that, in combination with their controllers, remotely control wind turbines and acquire data for analysis and reporting of the wind turbine's operational perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02F03D11/00G06Q50/10
CPCY02E10/723F03D11/0025Y02E10/722F03D11/0091F03D7/0224F03D7/02G06Q50/10Y02E10/72F03D17/00F03D80/40F03D9/257F03D7/00
Inventor 朴埈永李准信李在庆吴沂镛朴炳穆姜金锡刘武成金夕泰金志映
Owner KOREA ELECTRIC POWER CORP
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