TWI647575B - Fatigue deterioration diagnosis method of windmill and windmill, operation control method of windmill - Google Patents
Fatigue deterioration diagnosis method of windmill and windmill, operation control method of windmill Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
本發明之風車，其特徵在於：其係受風而發電運轉；此風車具備：量測前述風車處所發生之應變的應變量測裝置，而且基於量測之應變而算出該風車的第1應力值，基於前述風車之風況資訊而算出該風車的第2應力值，比較前述第1應力值及前述第2應力值，且基於前述比較結果而算出該風車的疲勞劣化狀況。因而可精密地推定風車的疲勞劣化狀況。 A windmill according to the present invention is characterized in that it is driven by wind and generates electric power. The windmill includes a strain measuring device that measures a strain generated at the windmill, and calculates a first stress value of the windmill based on the measured strain. The second stress value of the wind turbine is calculated based on the wind condition information of the windmill, and the first stress value and the second stress value are compared, and the fatigue deterioration state of the wind turbine is calculated based on the comparison result. Therefore, the fatigue deterioration state of the windmill can be accurately estimated.
Description
本發明有關一種受風而發電運轉的風車，特別指一種風車的結構強度診斷。 The invention relates to a windmill which is operated by wind and generates electricity, in particular to a structural strength diagnosis of a windmill.
作為本技術領域的背景技術，例如有如專利文獻1般的技術。專利文獻1中，曾揭示一種風車的運轉控制裝置及其方法以及程式，其中於該風車的運轉控制裝置中具備運轉控制機構，該運轉控制機構係因應風車的運轉累計時間與風車的疲勞劣化度建立對應關係而成之疲勞劣化時程、與目前之疲勞劣化度的關係，而控制前述風車的運轉。 As a background art in the technical field, for example, there is a technique like Patent Document 1. Patent Document 1 discloses an operation control device for a windmill, a method therefor, and a program, wherein the operation control device for the wind turbine includes an operation control mechanism that corresponds to a cumulative operation time of the windmill and a fatigue deterioration degree of the wind turbine. The operation of the windmill is controlled by establishing a relationship between the fatigue deterioration time course and the current fatigue deterioration degree.
又，專利文獻2中，曾揭示一種風車結構體的應力解析裝置及應力解析程式以及風力發電系統，其中於該風車結構體的應力解析裝置中，具備：荷重資料作成機構，其基於與運轉環境有關的參數，作成設定於風車結構體處之特定的荷重觀測部位之荷重時序資料；以及應力解析機構，其基於前述荷重時序資料，作成設定於前述風車結構體的至少1個解析對象部位之應力時序資料。 Further, Patent Document 2 discloses a stress analysis device, a stress analysis program, and a wind power generation system of a wind turbine structure, wherein the stress analysis device of the wind turbine structure includes a load data creation mechanism based on an operating environment The relevant parameters are the load timing data set at the specific load observation portion of the windmill structure; and the stress analysis mechanism is configured to generate the stress set in at least one analysis target portion of the windmill structure based on the load timing data. Timing data.
[專利文獻1]日本特許第4241644號公報 [Patent Document 1] Japanese Patent No. 4241644
[專利文獻2]日本特開2010-79685號公報 [Patent Document 2] Japanese Patent Laid-Open Publication No. 2010-79685
有關機械的結構強度，設計的試驗資料與顧客現場的實測資料乖離大，而有較假想為早地發生損傷之情形。例如，風力發電所用之風車中，作為其原因可以想像的是，設計時所假想之主要由風速及風向表示的風況與實際的風況大有不同。 Regarding the structural strength of the machine, the design test data is far from the actual measured data at the customer site, and there is a situation in which the imaginary damage occurs earlier. For example, in the windmill used for wind power generation, it is conceivable that the wind condition represented by the wind speed and the wind direction is largely different from the actual wind condition at the time of design.
風車的荷重設計中，除了可耐颱風般之暫時性最大荷重的設計以外，另有必要的是可耐一般運轉時作用於葉片或塔架之荷重變動的疲勞設計。一般而言，荷重變動係對應於風的變動之大小而變動。作為表示風的變動之大小的主要參數，存在一種稱為風速的紊亂強度之參數。此一紊亂強度係因風力發電裝置的建設地之氣象條件與地形條件而大幅變動。然而，風力發電裝置之疲勞劣化的要因中，除了風速紊亂強度以外尚有各種要因，故有單單根據風速的紊亂強度，疲勞劣化推定之精度低等等的問題。 In the load design of the windmill, in addition to the design that can withstand the temporary maximum load of the typhoon, it is necessary to be able to withstand the fatigue design of the load fluctuation of the blade or the tower during normal operation. In general, the load variation varies depending on the magnitude of the wind fluctuation. As a main parameter indicating the magnitude of the change in wind, there is a parameter called a disturbance intensity of the wind speed. This turbulence intensity varies greatly depending on the weather conditions and terrain conditions of the construction site of the wind power generator. However, in the cause of the fatigue deterioration of the wind turbine generator, there are various factors in addition to the wind speed turbulence intensity, and there is a problem that the accuracy of the fatigue deterioration estimation is low depending on the turbulence intensity of the wind speed alone.
此處，專利文獻1中，因應風車的運轉累計 時間與風車的疲勞劣化度建立對應關係而成之疲勞劣化時程、與目前之疲勞劣化度的關係，可控制前述風車的運轉。 Here, in Patent Document 1, the operation of the windmill is cumulative. The operation of the windmill can be controlled by the relationship between the fatigue deterioration time history and the current fatigue deterioration degree in which the time is related to the fatigue deterioration degree of the wind turbine.
然而，導因於風車之疲勞劣化的應力值的增大係依存於風車的運轉狀態(運轉時間、風況、設置場所等)，因此難以預先推定針對每個風車的最適性疲勞劣化，及準備高精度的疲勞劣化時程。 However, the increase in the stress value due to the fatigue deterioration of the windmill depends on the operating state of the wind turbine (operation time, wind conditions, installation location, etc.), so it is difficult to estimate the optimum fatigue degradation for each wind turbine in advance, and prepare High-precision fatigue degradation time course.
又，專利文獻2中，具備：荷重資料作成機構，其作成設定於風車結構體之特定的荷重觀測部位之荷重時序資料；以及應力解析機構，其基於前述荷重時序資料，作成設定於前述風車結構體的至少1個解析對象部位之應力時序資料。藉由將應力時序資料的最大荷重與預先設定的臨限值比較而可控制運轉。 Further, Patent Document 2 includes a load data creation mechanism that creates load timing data set at a specific load observation portion of the wind turbine structure, and a stress analysis mechanism that is set to the windmill structure based on the load timing data. Stress time series data of at least one analysis target part of the body. The operation can be controlled by comparing the maximum load of the stress time series data with a preset threshold value.
然而，此一方法中，與專利文獻1相同，有必要預先設定最大荷重的臨限值，而難以設定對於每個風車的最適之臨限值，以致有過度進行運轉控制而抑制發電量的可能性。 However, in this method, as in Patent Document 1, it is necessary to set the threshold of the maximum load in advance, and it is difficult to set the optimum threshold for each windmill, so that the possibility of excessively controlling the operation and suppressing the amount of power generation is possible. Sex.
是以，本發明的目的係在提供一種藉由根據風車的實測應變值與該風車無疲勞劣化之狀態下的正常應力值之比較而推定風車的疲勞劣化狀況，而可精度良好地推定每個風車的疲勞劣化狀況之風車。 Therefore, an object of the present invention is to provide a fatigue deterioration state of a windmill based on a comparison between a measured strain value of a windmill and a normal stress value in a state in which the windmill is not fatigue-deteriorated, and can accurately estimate each Windmill where the fatigue of the windmill deteriorates.
又，本發明的另一目的係在提供一種藉由根據風車的實測應變值與該風車無疲勞劣化之狀態下的正常應力值之比較而推定風車的疲勞劣化狀況，而可精度良好 地推定每個風車的疲勞劣化狀況之風車的疲勞劣化診斷方法。 Further, another object of the present invention is to provide a method for estimating the fatigue deterioration of a windmill by comparing the measured strain value of the windmill with the normal stress value in a state in which the windmill is not fatigue-degraded, and the accuracy is good. A fatigue deterioration diagnosis method for a windmill that estimates the fatigue deterioration state of each windmill.
又，本發明的其他目的係在提供一種根據風車的實測應變值與該風車無疲勞劣化之狀態下的正常應力值之比較而推定風車的疲勞劣化狀況，並基於推定的疲勞劣化狀況而控制風車的運轉之風車的運轉控制方法。 Further, another object of the present invention is to provide a wind turbine that predicts a fatigue deterioration state based on a comparison between a measured strain value of a windmill and a normal stress value in a state in which the windmill is fatigue-free, and controls the windmill based on the estimated fatigue deterioration state. The operation control method of the running windmill.
為了解決上述課題，本發明之風車，其特徵在於：其係受風而發電運轉；此風車具備：量測前述風車處所發生之應變的應變量測裝置，而且基於量測之應變而算出該風車的第1應力值，基於前述風車之風況資訊而算出該風車的第2應力值，比較前述第1應力值及前述第2應力值，且基於前述比較結果而算出該風車的疲勞劣化狀況。 In order to solve the above problems, a wind turbine according to the present invention is characterized in that it is driven by wind and generates electric power. The windmill includes a strain measuring device that measures a strain generated at the windmill, and calculates the windmill based on the strain of the measurement. The first stress value is calculated based on the wind condition information of the windmill, and the second stress value of the wind turbine is calculated, and the first stress value and the second stress value are compared, and the fatigue deterioration state of the wind turbine is calculated based on the comparison result.
又，本發明之風車的疲勞劣化診斷方法，其特徵在於：其係受風而發電運轉之風車的疲勞劣化診斷方法，而且基於由應變量測機構量測之應變而算出該風車的第1應力值，基於前述風車之風況資訊而算出該風車的第2應力值，比較前述第1應力值與前述第2應力值，且基於前述第1應力值與前述第2應力值的比較結果而診斷該風車的疲勞劣化狀況。 Further, the method for diagnosing fatigue deterioration of a wind turbine according to the present invention is characterized in that it is a fatigue deterioration diagnosis method of a wind turbine that is operated by wind and generates a first stress of the windmill based on a strain measured by a strain measuring mechanism. And calculating a second stress value of the windmill based on the wind condition information of the windmill, comparing the first stress value and the second stress value, and diagnosing based on a comparison result between the first stress value and the second stress value The fatigue deterioration of the windmill.
另外，本發明之風車的運轉控制方法，其特徵在於：其係受風而發電運轉之風車的運轉控制方法，而 且基於由應變量測機構量測之應變而算出該風車的第1應力值，基於前述風車之風況資訊而算出該風車的第2應力值，比較前述第1應力值與前述第2應力值，基於前述第1應力值與前述第2應力值的比較結果而診斷該風車的疲勞劣化狀況，且基於前述疲勞劣化狀況而控制該風車的運轉。 Moreover, the operation control method of the windmill according to the present invention is characterized in that it is an operation control method of a wind turbine that is operated by wind and is operated by electricity. And calculating a first stress value of the windmill based on the strain measured by the strain measuring mechanism, calculating a second stress value of the windmill based on the wind condition information of the windmill, and comparing the first stress value with the second stress value The fatigue deterioration state of the wind turbine is diagnosed based on the comparison result between the first stress value and the second stress value, and the operation of the wind turbine is controlled based on the fatigue deterioration state.
根據本發明，藉由根據風車的實測應變值與該風車之無疲勞劣化的狀態下的正常應力值的比較而推定風車的疲勞劣化狀況，可實現能夠精度良好地推定每個風車的疲勞劣化狀況的風車。 According to the present invention, it is possible to accurately estimate the fatigue deterioration state of each wind turbine by estimating the fatigue deterioration state of the windmill based on the comparison between the measured strain value of the windmill and the normal stress value in the state in which the wind turbine is not fatigue-deteriorated. Windmill.
又，根據本發明，可提供一種藉由根據風車的實測應變值與該風車之無疲勞劣化的狀態下的正常應力值的比較而推定風車的疲勞劣化狀況，而能夠精度良好地推定每個風車的疲勞劣化狀況之風車的疲勞劣化診斷方法。 Moreover, according to the present invention, it is possible to estimate the fatigue deterioration state of the windmill based on the comparison between the measured strain value of the windmill and the normal stress value in the state in which the wind turbine is not fatigue-deteriorated, and it is possible to accurately estimate each windmill. The fatigue deterioration diagnosis method of the windmill of the fatigue deterioration state.
又，根據本發明，可提供一種藉由根據風車的實測應變值與該風車之無疲勞劣化的狀態下的正常應力值的比較而推定風車的疲勞劣化狀況，並基於推定之疲勞劣化狀況而控制風車的運轉之風車的運轉控制方法。 Moreover, according to the present invention, it is possible to estimate the fatigue deterioration state of the windmill based on the comparison between the measured strain value of the windmill and the normal stress value in the state in which the wind turbine is fatigue-free, and control based on the estimated fatigue deterioration state. The operation control method of the windmill running windmill.
上述以外的課題、構成及效果，可由以下的實施方式的說明而獲得深一層的了解。 The problems, configurations, and effects other than the above can be understood from the following description of the embodiments.
10‧‧‧應變量測裝置 10‧‧‧Variable measuring device
20‧‧‧風向風速計 20‧‧‧Wind anemometer
30‧‧‧實測應力算出器 30‧‧‧Measured stress calculator
40‧‧‧正常應力算出器 40‧‧‧Normal stress calculator
50‧‧‧疲勞劣化比較器(疲勞加速係數算出器) 50‧‧‧Fatigue Degradation Comparator (Fatigue Acceleration Rate Calculator)
60‧‧‧疲勞劣化演算器 60‧‧‧Fatigue Degradation Calculator
70‧‧‧SCADA 70‧‧‧SCADA
80‧‧‧運轉控制器 80‧‧‧Operation controller
100‧‧‧風車 100‧‧‧ windmill
200‧‧‧具有疲勞劣化診斷裝置的風車 200‧‧‧Wind with fatigue deterioration diagnostic device
300‧‧‧疲勞劣化診斷裝置 300‧‧‧Fatigue deterioration diagnostic device
400‧‧‧具有應變量測裝置的風車 400‧‧‧Windmills with strain gauges
500‧‧‧風車監視塔 500‧‧‧ Windmill Watch Tower
1000‧‧‧具有應變量測裝置及疲勞劣化診斷裝置的風車 1000‧‧‧Windmill with strain gauge and fatigue deterioration diagnostic device
2000‧‧‧風車的運轉控制裝置 2000‧‧‧Wind running control device
D10‧‧‧應變值 D10‧‧‧ strain value
D20‧‧‧實測應力值 D20‧‧‧ measured stress value
D30‧‧‧風向值與風速值 D30‧‧‧ Wind direction value and wind speed value
D40‧‧‧正常應力值 D40‧‧‧ normal stress value
D50‧‧‧疲勞加速係數 D50‧‧‧Fatigue acceleration factor
E10‧‧‧塔架 E10‧‧‧Tower
E20‧‧‧葉片 E20‧‧‧ leaves
F1‧‧‧應變量測步驟 F1‧‧‧Variable test steps
F2‧‧‧實測應力算出步驟 F2‧‧‧Measured stress calculation steps
F3‧‧‧風向暨風速量測步驟 F3‧‧‧Wind and wind speed measurement steps
F4‧‧‧正常應力算出步驟 F4‧‧‧ normal stress calculation steps
F5‧‧‧疲勞加速係數算出步驟 F5‧‧‧Fatigue acceleration coefficient calculation steps
F6‧‧‧疲勞劣化演算步驟 F6‧‧‧Fatigue Degradation Calculation Procedure
S10‧‧‧疲勞劣化度 S10‧‧‧Fatigue deterioration
S20‧‧‧運轉控制信號 S20‧‧‧Operation control signal
第1圖為表示本發明的一個實施方式之風車的疲勞劣化診斷方法之概要的方塊圖。 Fig. 1 is a block diagram showing an outline of a fatigue deterioration diagnosis method for a wind turbine according to an embodiment of the present invention.
第2圖為表示第1圖的正常應力算出器的算出正常應力值的方法之一例的表。 Fig. 2 is a table showing an example of a method of calculating a normal stress value by the normal stress calculator of Fig. 1.
第3圖為表示第1圖的正常應力算出器算出的實際運轉疲勞劣化時程之一例的概念圖。 Fig. 3 is a conceptual diagram showing an example of the actual running fatigue deterioration time course calculated by the normal stress calculator of Fig. 1 .
第4圖為表示本發明的一個實施方式之風車的疲勞劣化診斷方法之一例的流程圖。 Fig. 4 is a flow chart showing an example of a fatigue deterioration diagnosis method for a wind turbine according to an embodiment of the present invention.
第5圖為表示本發明的一個實施方式之風車的疲勞劣化診斷方法之概要的方塊圖。 Fig. 5 is a block diagram showing an outline of a fatigue deterioration diagnosis method for a wind turbine according to an embodiment of the present invention.
第6圖為表示本發明的一個實施方式之風車的疲勞劣化診斷方法之概要的方塊圖。 Fig. 6 is a block diagram showing an outline of a fatigue deterioration diagnosing method for a wind turbine according to an embodiment of the present invention.
第7圖為本發明的一個實施方式之具有應變量測裝置及疲勞劣化診斷裝置之風車的概略構成圖。 Fig. 7 is a schematic configuration diagram of a windmill having a strain measuring device and a fatigue deterioration diagnosing device according to an embodiment of the present invention.
第8圖為表示本發明的一個實施方式之風車的運轉控制裝置之概要的方塊圖。 Fig. 8 is a block diagram showing an outline of an operation control device for a wind turbine according to an embodiment of the present invention.
針對本發明的實施例一面參照圖面一面進行說明。又，各圖面及各實施例中，針對相同或類似的構成要件係附以相同的符號，至於重複的部分則省略其詳細說明。 Embodiments of the present invention will be described with reference to the drawings. In the drawings and the respective embodiments, the same or similar constituent elements are denoted by the same reference numerals, and the detailed description is omitted for the repeated parts.
第1圖為表示本發明的一個實施例之風車的疲勞劣化診斷方法之概要的方塊圖。 Fig. 1 is a block diagram showing an outline of a fatigue deterioration diagnosing method for a wind turbine according to an embodiment of the present invention.
第1圖所示之風車100，具備例如將出自疲勞劣化診斷對象的風車處所設置之應變量測裝置10的輸出值即感測器資料作為輸入，而算出該風車的實測應力值的實測應力算出器30。此外，還具備將出自風車的特定部位設置之風向風速計20的輸出值即風向值暨風速值作為輸入，而算出該風車的正常應力值的正常應力算出器40。 The windmill 100 shown in FIG. 1 is provided with, for example, sensor data which is an output value of the strain measuring device 10 installed in the windmill for the fatigue deterioration diagnosis target, and calculates the measured stress value of the actual measured stress value of the windmill. 30. In addition, a normal stress calculator 40 that calculates the normal stress value of the wind turbine by inputting the wind direction value and the wind speed value, which are output values of the wind direction anemometer 20 provided at a specific portion of the wind turbine, is also included.
又，風車100具有：將自實測應力算出器30輸出的實測應力值與自正常應力算出器40輸出的正常應力值作為輸入，而算出比較實測應力值與正常應力值所得之疲勞加速係數的疲勞劣化比較器(疲勞加速係數算出器)50；以及將自疲勞劣化比較器(疲勞加速係數算出器)50輸出的疲勞加速係數作為輸入，而演算疲勞劣化度S10的疲勞劣化演算器60。風車100將該風車之疲勞劣化度S10輸出。 Further, the windmill 100 has the fatigue stress coefficient obtained by comparing the measured stress value and the normal stress value output from the normal stress calculator 40 with the measured stress value output from the measured stress calculator 30. The deterioration comparator (fatigue acceleration coefficient calculator) 50 and the fatigue acceleration coefficient of the fatigue deterioration degree S10 are calculated by inputting the fatigue acceleration coefficient output from the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50. The windmill 100 outputs the fatigue deterioration degree S10 of the windmill.
由應變量測裝置10所測定的感測器資料係測定風車的應變值所得的資料，此處，應變量測裝置10係指應變規或半導體應變感測器、加速度感測器等。 The sensor data measured by the strain measuring device 10 is obtained by measuring the strain value of the windmill. Here, the strain measuring device 10 refers to a strain gauge or a semiconductor strain sensor, an acceleration sensor, or the like.
風向風速計20之特定的部位，例如可考量的是針對風車的控制而設置於機艙上部的風向風速計。 A specific portion of the wind direction anemometer 20 may be, for example, a wind direction anemometer provided on the upper portion of the nacelle for control of the windmill.
實測應力算出器30係將出自應變量測裝置10之輸出即應變資料作為輸入，例如使用雨流法等而算出實測應力值並予輸出。 The measured stress calculator 30 receives the strain data from the output of the strain measuring device 10 as an input, and calculates the measured stress value using a rain flow method or the like, for example, and outputs it.
正常應力算出器40係將出自風向風速計20之輸出即風向值暨風速值作為輸入，而選擇預先儲存之應力值，並將其作為正常應力值輸出。正常應力算出器40中，成組地儲存有該風車設置後的特定期間的風速暨風向、及該時的自實測應力算出器30輸出的實測應力值。該風車設置後特定期間表示風車以正常狀態運轉的期間，例如可考慮為1年間等。作為風速暨風向與實測應力值的儲存方法，例如可考量如第2圖所示使用正常應力變換表的方法。 The normal stress calculator 40 receives the output from the wind direction anemometer 20, that is, the wind direction value and the wind speed value, and selects the pre-stored stress value and outputs it as the normal stress value. In the normal stress calculator 40, the wind speed and the wind direction of the specific period after the installation of the wind turbine, and the measured stress value output from the actual measured stress calculator 30 at that time are stored in groups. The specific period after the installation of the wind turbine indicates a period in which the wind turbine is operating in a normal state, and for example, it may be considered to be one year or the like. As a method of storing the wind speed and the wind direction and the measured stress value, for example, a method of using a normal stress conversion table as shown in Fig. 2 can be considered.
又，根據該風車設置後特定期間所儲存之實際運轉應力值作成實際運轉疲勞劣化時程。實際運轉疲勞劣化時程係表示，假定於該風車設置後特定期間(例如1年)所儲存的實際運轉應力值在風車的設計壽命(例如20年)之間重複被輸入，至設計壽命為止的風車的疲勞劣化度的進程。 Further, the actual running fatigue deterioration time period is created based on the actual operating stress value stored in the specific period after the installation of the wind turbine. The actual running fatigue deterioration time history indicates that the actual operating stress value stored in a specific period (for example, one year) after the installation of the windmill is repeatedly input between the design life of the windmill (for example, 20 years) until the design life. The progress of the fatigue degradation degree of the windmill.
實際運轉疲勞劣化時程例如可如第3圖所示，以橫軸為風車的運轉時間，以縱軸表示疲勞劣化度。將該風車設置後特定期間的實測應力值除以設計時的最大負荷應力值所得之值繪於縱軸，求取該風車設置後特定期間的疲勞劣化度的斜率。假設疲勞劣化以該斜率進行至風車的設計壽命為止，將實際運轉疲勞劣化線延伸。實際運 轉疲勞劣化時程由疲勞劣化演算器60保持。 The actual operation fatigue deterioration time course can be, for example, as shown in FIG. 3, in which the horizontal axis represents the operation time of the windmill, and the vertical axis represents the fatigue deterioration degree. The value obtained by dividing the measured stress value in the specific period after the wind turbine is set by the maximum load stress value at the time of designing is plotted on the vertical axis, and the slope of the fatigue deterioration degree in the specific period after the windmill is set is obtained. It is assumed that the fatigue deterioration proceeds to the design life of the windmill at the slope, and the actual running fatigue deterioration line is extended. Actual operation The rotational fatigue deterioration time course is maintained by the fatigue deterioration calculator 60.
疲勞劣化比較器(疲勞加速係數算出器)50係將自實測應力算出器30輸出的實測應力值與自正常應力算出器40輸出的正常應力值作為輸入，算出表示實測應力值與正常應力值之相關的疲勞加速係數並予輸出。疲勞加速係數例如係以下式計算。 The fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 receives the measured stress value output from the measured stress calculator 30 and the normal stress value output from the normal stress calculator 40, and calculates the measured stress value and the normal stress value. The associated fatigue acceleration factor is output. The fatigue acceleration coefficient is calculated, for example, by the following formula.
疲勞加速係數=實測應力值/正常應力值 Fatigue acceleration coefficient = measured stress value / normal stress value
此處，疲勞加速係數為1以下的情形時表示無疲勞劣化，較1為大的情形下表示疲勞劣化進行中。 Here, when the fatigue acceleration coefficient is 1 or less, fatigue-free deterioration is indicated, and when 1 is large, fatigue deterioration is in progress.
疲勞劣化演算器60係將自疲勞劣化比較器(疲勞加速係數算出器)50輸出的疲勞加速係數作為輸入，例如，與正常應力算出器40算出的實際運轉疲勞劣化時程進行比較，而演算疲勞劣化度S10。具體而言，其係因應疲勞加速係數修正(補正)實際運轉疲勞劣化線的斜率，並將修正(補正)之實際運轉疲勞劣化線與風車的設計壽命交點作為疲勞劣化度算出。 The fatigue deterioration calculator 60 receives the fatigue acceleration coefficient output from the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50, and compares it with the actual running fatigue deterioration time history calculated by the normal stress calculator 40, for example, and calculates fatigue. Degree of deterioration S10. Specifically, the slope of the actual running fatigue deterioration line is corrected (corrected) by the fatigue acceleration coefficient, and the intersection between the actual running fatigue deterioration line of the correction (correction) and the design life of the wind turbine is calculated as the fatigue deterioration degree.
第2圖為表示第1圖的正常應力算出器40的算出正常應力值的方法之一例的表。基本上係與已說明的內容重複，因此重複之說明在此省略。如第2圖所示，將風速與風向取為各軸，記錄該時的實際運轉應力值。將該表針對應變量測裝置10設置之各個相當部位作成。或 是，將應變量測裝置10設置之相當部位與風速取為各軸，準備記錄該時之實際運轉應力值的表。亦可考量將此表針對每個風向而準備之方法。 Fig. 2 is a table showing an example of a method of calculating a normal stress value by the normal stress calculator 40 of Fig. 1 . Basically, it is repeated with the already explained contents, so the repeated explanation is omitted here. As shown in Fig. 2, the wind speed and the wind direction are taken as the respective axes, and the actual operating stress value at that time is recorded. This table is created for each of the equivalent portions provided by the strain measuring device 10. or In other words, the equivalent portion and the wind speed set by the strain measuring device 10 are taken as the respective axes, and a table for recording the actual operating stress value at that time is prepared. You can also consider the method of preparing this watch for each wind direction.
第3圖為表示第1圖的正常應力算出器40算出的實際運轉疲勞劣化時程之一例的概念圖。基本上係與已說明的內容重複，因此重複之說明在此省略。如第3圖所示，實際運轉疲勞劣化線雖為直線，但亦可考量有指數函數之情況。又，第3圖中，雖可利用該風車設置後特定期間的實際運轉劣化線的斜率為基礎而將實際運轉疲勞劣化線延伸，但亦可考量在一定期間(例如每5年)將實際運轉劣化線予以重新繪線之方法。 Fig. 3 is a conceptual diagram showing an example of the actual running fatigue deterioration time course calculated by the normal stress calculator 40 of Fig. 1 . Basically, it is repeated with the already explained contents, so the repeated explanation is omitted here. As shown in Fig. 3, although the actual running fatigue degradation line is a straight line, it is also possible to consider an exponential function. In addition, in the third figure, the actual operation fatigue deterioration line may be extended based on the slope of the actual operation deterioration line in the specific period after the installation of the wind turbine, but it may be considered that the actual operation will be performed for a certain period of time (for example, every five years). The method of re-lineing the line of deterioration.
第4圖為表示本發明的一個實施方式之風車的疲勞劣化診斷方法之一例的流程圖。基本上係與已說明的內容重複，因此重複之說明在此省略。如第4圖所示，若開始疲勞劣化診斷，則於應變量測步驟F1中將該風車的應變作為輸入，將應變值D10輸出而前進到實測應力算出步驟F2。 Fig. 4 is a flow chart showing an example of a fatigue deterioration diagnosis method for a wind turbine according to an embodiment of the present invention. Basically, it is repeated with the already explained contents, so the repeated explanation is omitted here. As shown in FIG. 4, when the fatigue deterioration diagnosis is started, the strain of the wind turbine is input as the strain measurement step F1, and the strain value D10 is outputted to the actual stress calculation step F2.
於實測應力算出步驟F2中，將步驟F1輸出之應變值D10作為輸入，例如使用雨流法輸出實測應力值D20，並前進到疲勞加速係數算出步驟F5。 In the measured stress calculation step F2, the strain value D10 outputted from the step F1 is input, and the measured stress value D20 is outputted, for example, by the rain flow method, and proceeds to the fatigue acceleration coefficient calculation step F5.
風向暨風速量測步驟F3中，使用既設於該風車的風向風速計，輸出風向值與風速值D30並前進到正常應力算出步驟F4。 In the wind direction and wind speed measurement step F3, the wind direction anemometer provided in the wind turbine is used to output the wind direction value and the wind speed value D30 and proceed to the normal stress calculation step F4.
於正常應力算出步驟F4中，將步驟F3所輸 出之風向值與風速值D30作為輸入，使用預先準備的正常應力變換表輸出正常應力值D40，並前進到疲勞加速係數算出步驟F5。 In the normal stress calculation step F4, the step F3 is lost. The wind direction value and the wind speed value D30 are input as inputs, and the normal stress value D40 is output using the normal stress conversion table prepared in advance, and proceeds to the fatigue acceleration coefficient calculation step F5.
疲勞加速係數算出步驟F5中，將步驟F2所算出的實測應力值D20與步驟F4所算出的正常應力值D40作為輸入，而算出表示實測應力值與正常應力值之相關的疲勞加速係數D50，並前進到疲勞劣化演算步驟F6。 In the fatigue acceleration coefficient calculation step F5, the measured stress value D20 calculated in step F2 and the normal stress value D40 calculated in step F4 are input, and the fatigue acceleration coefficient D50 indicating the correlation between the measured stress value and the normal stress value is calculated, and Proceed to the fatigue degradation calculation step F6.
於疲勞劣化演算步驟F6中，將步驟5所算出之疲勞加速係數D50作為輸入，與實際運轉疲勞劣化時程比較，例如利用第3圖所示之方法算出疲勞劣化度S10而終了。 In the fatigue deterioration calculation step F6, the fatigue acceleration coefficient D50 calculated in the step 5 is input, and compared with the actual operation fatigue deterioration time course, for example, the fatigue deterioration degree S10 is calculated by the method shown in FIG.
如以上所說明，根據本實施例，藉由來自風向風速計的風向與風速及設置於該風車之作為疲勞劣化的檢測對象的部位之應變感測器，可精度良好地推定該風車的疲勞劣化度。 As described above, according to the present embodiment, the fatigue of the wind turbine can be accurately estimated by the wind direction and the wind speed from the wind direction anemometer and the strain sensor provided in the wind turbine as the detection target of the fatigue deterioration. degree.
又，本實施例之疲勞劣化度，若可掌握該風車的疲勞劣化狀況，則不限於本說明書中的疲勞劣化度本身。 Further, the fatigue deterioration degree of the present embodiment is not limited to the fatigue deterioration degree itself in the present specification if the fatigue deterioration state of the windmill can be grasped.
再者，該風車之風向暨風速等等的風況資訊中，除了由該風車本身所設之風向風速計所量測者以外，亦可考量例如使用該風車之上風側所設置的風車之實測資料的情況。 In addition, in the wind condition information such as the wind direction and the wind speed of the windmill, in addition to the wind direction anemometer provided by the windmill itself, it is also possible to consider, for example, the windmill provided on the wind side of the windmill. The situation of measured data.
第5圖為表示本發明第二實施方式之風車的疲勞劣化診斷方法的概要的方塊圖。 Fig. 5 is a block diagram showing an outline of a fatigue deterioration diagnosis method for a wind turbine according to a second embodiment of the present invention.
第5圖所示之具有疲勞劣化診斷裝置的風車200，具備例如將出自疲勞劣化診斷對象的風車處所設置之應變量測裝置10的輸出值即感測器資料作為輸入，而算出該風車的實測應力值的實測應力算出器30。又，還具備將出自風車的特定部位設置之風向風速計20的輸出值即風向值暨風速值作為輸入，而算出該風車的正常應力值的正常應力算出器40。 The windmill 200 having the fatigue deterioration diagnosing device shown in FIG. 5 includes, for example, inputting sensor data, which is an output value of the strain measuring device 10 installed in the windmill for the fatigue deterioration diagnosis target, and calculates the actual measurement of the windmill. The measured stress calculator 30 of the stress value. In addition, the normal stress calculator 40 that calculates the normal stress value of the wind turbine by inputting the wind direction value and the wind speed value, which are output values of the wind direction anemometer 20 provided at a specific portion of the wind turbine, is also included.
又，具有疲勞劣化診斷裝置的風車200，具有：將自實測應力算出器30輸出的實測應力值與自正常應力算出器40輸出的正常應力值作為輸入，而算出比較實測應力值與正常應力值所得之疲勞加速係數的疲勞劣化比較器(疲勞加速係數算出器)50；以及將自疲勞劣化比較器(疲勞加速係數算出器)50輸出的疲勞加速係數作為輸入，而演算疲勞劣化度S10的疲勞劣化演算器60。 Further, the windmill 200 having the fatigue deterioration diagnostic device has an input of the measured stress value output from the measured stress calculator 30 and the normal stress value output from the normal stress calculator 40, and calculates the comparative measured stress value and the normal stress value. The fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 of the obtained fatigue acceleration coefficient and the fatigue acceleration coefficient output from the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 are input, and the fatigue of the fatigue deterioration degree S10 is calculated. Deteriorating calculator 60.
實測應力算出器30、正常應力算出器40、疲勞劣化比較器(疲勞加速係數算出器)50、與疲勞劣化演算器60，構成將表示風車的經年疲勞劣化之程度的疲勞劣化度S10予以輸出之疲勞劣化診斷裝置300，並輸出該疲勞劣化度S10。 The measured stress calculation device 30, the normal stress calculator 40, the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50, and the fatigue deterioration calculator 60 are configured to output a fatigue deterioration degree S10 indicating the degree of deterioration of the wind turbine's menstrual fatigue. The fatigue deterioration diagnostic apparatus 300 outputs the fatigue deterioration degree S10.
如上所述，具有疲勞劣化診斷裝置的風車200，與實施例1所說明之風車100具有大致相同的構 成，將實測應力算出器30與正常應力算出器40與疲勞劣化比較器(疲勞加速係數算出器)50與疲勞劣化演算器60綜合稱為疲勞劣化診斷裝置300。應變量測裝置10、風向風速計20、實測應力算出器30、正常應力算出器40、疲勞加速係數算出器50及疲勞劣化演算器60，係與已說明者重複，因此其詳細說明在此省略。 As described above, the windmill 200 having the fatigue deterioration diagnostic device has substantially the same configuration as the windmill 100 described in the first embodiment. The measured stress calculator 30 and the normal stress calculator 40 and the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 and the fatigue deterioration calculator 60 are collectively referred to as a fatigue deterioration diagnostic device 300. The strain measuring device 10, the wind direction anemometer 20, the measured stress calculator 30, the normal stress calculator 40, the fatigue acceleration coefficient calculator 50, and the fatigue deterioration calculator 60 are the same as those described above, and thus detailed description thereof is omitted here. .
根據本實施例，藉由對於既設之風車追加應變量測裝置10及疲勞劣化診斷裝置300，即可與實施例1所說明的風車100同樣般的精度良好的推定疲勞劣化度。 According to the present embodiment, by adding the strain measuring device 10 and the fatigue deterioration diagnostic device 300 to the existing windmill, the fatigue deterioration degree can be estimated with high accuracy as in the windmill 100 described in the first embodiment.
第6圖為表示本發明第三實施方式之風車的疲勞劣化診斷方法之概要的方塊圖。 Fig. 6 is a block diagram showing an outline of a fatigue deterioration diagnosis method for a wind turbine according to a third embodiment of the present invention.
第6圖所示之具有應變量測裝置的風車400，具備將例如出自設置於疲勞劣化診斷之對象的風車的應變量測裝置10之輸出值即感測器資料作為輸入，而算出該風車之實測應力值的實測應力算出器30。又，將出自風車的特定部位處設置之風向風速計20的輸出值即風向值暨風速值作為輸入，而算出該風車的正常應力值的正常應力算出器40。 The windmill 400 having the strain measuring device shown in FIG. 6 is provided with input, for example, sensor data which is an output value of the strain measuring device 10 of the wind turbine installed in the fatigue deterioration diagnosis, and calculates the windmill. The measured stress calculator 30 of the measured stress value. In addition, the normal stress calculator 40 that calculates the normal stress value of the wind turbine is input by inputting the wind direction value and the wind speed value, which are output values of the wind direction anemometer 20 provided at a specific portion of the windmill.
又，風車監視塔500具備：疲勞劣化比較器(疲勞加速係數算出器)50，其將自具有應變量測裝置之風車400輸出的該風車的實測應力值與正常應力值作為輸入，而算出實測應力值與正常應力值比較所得之疲勞加速 係數；以及疲勞劣化演算器60，其係將自疲勞劣化比較器(疲勞加速係數算出器)50輸出的疲勞加速係數作為輸入，而演算疲勞劣化度S10。風車監視塔500係將該風車之疲勞劣化度S10輸出。 Further, the windmill monitoring tower 500 includes a fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 that inputs the measured stress value and the normal stress value of the wind turbine output from the windmill 400 having the strain gauge device, and calculates the measured value. Fatigue acceleration obtained by comparing stress value with normal stress value The coefficient and the fatigue deterioration calculator 60 calculate the fatigue deterioration degree S10 by inputting the fatigue acceleration coefficient output from the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50. The windmill monitoring tower 500 outputs the fatigue deterioration degree S10 of the wind turbine.
換言之，本實施例係由具備應變量測裝置10、風向風速計20、實測應力算出器30及正常應力算出器40的風車400，以及具備疲勞劣化比較器(疲勞加速係數算出器)50及疲勞劣化演算器60的風車監視塔500所構成。 In other words, the present embodiment is provided with the windmill 400 including the strain gauge 10, the wind direction anemometer 20, the measured stress calculator 30, and the normal stress calculator 40, and the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 and fatigue. The windmill monitoring tower 500 of the deterioration calculator 60 is configured.
基本上，本實施例與實施例1或實施例2所說明之風車100或風車200具有大致相同的構成，有關應變量測裝置10、風向風速計20、實測應力算出器30、正常應力算出器40、疲勞劣化比較器(疲勞加速係數算出器)50、及疲勞劣化演算器60係與已說明的內容重複，因此詳細之說明在此省略。 Basically, the present embodiment has substantially the same configuration as the windmill 100 or the windmill 200 described in the first embodiment or the second embodiment, and the strain gauge 10, the wind direction anemometer 20, the measured stress calculator 30, and the normal stress calculator are basically configured. 40. The fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 and the fatigue deterioration calculator 60 are the same as those described above, and thus detailed description thereof will be omitted.
第6圖係表示疲勞劣化比較器(疲勞加速係數算出器)50及疲勞劣化演算器60設置於風車監視塔之構成，然亦可為實測應力算出器30、正常應力算出器40同樣也設置於風車監視塔的構成。又，也可為經由無線通訊或有線通訊等之網路線路等，將實測應力算出器30、正常應力算出器40，疲勞劣化比較器(疲勞加速係數算出器)50及疲勞劣化演算器60設置於風車及風車監視塔以外的構成。 Fig. 6 shows a configuration in which the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50 and the fatigue deterioration calculator 60 are provided in the windmill monitoring tower. However, the actual stress calculation device 30 and the normal stress calculator 40 may be similarly provided. The structure of the windmill monitoring tower. Further, the measured stress calculator 30, the normal stress calculator 40, the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50, and the fatigue deterioration calculator 60 may be provided via a network line such as wireless communication or wired communication. The structure other than the windmill and the windmill monitoring tower.
同樣地，各實施例中，也可考量的是將由疲 勞劣化演算器60算出的疲勞劣化度S10自風車100或風車200、風車監視塔500經由無線通訊或有線通訊等之網路線路等，例如傳送至於外部所設之中央監視系統。此一情況下，有必要於風車100或風車200、風車監視塔500設置無線發訊裝置等之傳送機構。 Similarly, in various embodiments, it is also considered that it will be fatigued. The fatigue deterioration degree S10 calculated by the labor deterioration calculator 60 is transmitted from the windmill 100, the windmill 200, and the windmill monitoring tower 500 to a central monitoring system provided externally via a network line such as wireless communication or wired communication. In this case, it is necessary to provide a transmission mechanism such as a wireless transmitting device to the windmill 100, the windmill 200, and the windmill monitoring tower 500.
第7圖為本發明的第四實施方式之具有應變量測裝置及疲勞劣化診斷裝置之風車的概略構成圖。 Fig. 7 is a schematic configuration diagram of a windmill having a strain measuring device and a fatigue deterioration diagnostic device according to a fourth embodiment of the present invention.
第7圖所示之具有應變量測裝置及疲勞劣化診斷裝置的風車1000，例如具有：作為疲勞劣化診斷對象之風車的塔架E10或葉片E20、設置於風車的塔架E10或葉片E20的應變量測裝置10、儲存風車的環境資料及控制資料的SCADA 70(Supervisory-Control-And-Data-Acquisition：監視控制系統)、及輸出表示風車的經年疲勞劣化的程度之疲勞劣化度S10的疲勞劣化診斷裝置300，並輸出疲勞劣化度S10。 The windmill 1000 having the strain measuring device and the fatigue deterioration diagnosing device shown in FIG. 7 has, for example, a strain E10 or a blade E20 of a windmill to be subjected to fatigue deterioration diagnosis, and a strain of the tower E10 or the blade E20 installed in the windmill. The measuring device 10, the SCADA 70 (Supervisory-Control-And-Data-Acquisition) for storing the environmental data and the control data of the windmill, and the fatigue of the fatigue deterioration degree S10 indicating the degree of fatigue deterioration of the windmill over the years. The diagnosis device 300 is deteriorated, and the fatigue deterioration degree S10 is output.
具有應變量測裝置及疲勞劣化診斷裝置的風車1000，與實施例2所說明之具備疲勞劣化診斷裝置的風車200具有大致相同之構成，有關應變量測裝置10及疲勞劣化診斷裝置300係與已說明的內容重複，因此詳細之說明在此省略。 The windmill 1000 having the strain measuring device and the fatigue deterioration diagnosing device has substantially the same configuration as the windmill 200 including the fatigue deterioration diagnosing device described in the second embodiment, and the strain measuring device 10 and the fatigue deterioration diagnosing device 300 are The contents of the description are repeated, so the detailed description is omitted here.
疲勞劣化度S10可考量的有以報告的形式輸出的形態或輸出至風車的監視塔等之監視畫面的形態，或 是作為風車的環境資料的一部份記憶於資料儲存裝置即SCADA 70的形態。第7圖中，疲勞劣化診斷裝置300雖包含於具有應變量測裝置及疲勞劣化診斷裝置的風車1000，但亦可考量採用納入SCADA 70而設為SCADA 70之一個機能的形態。 The fatigue deterioration degree S10 can be measured in the form of a report output or a monitor screen output to a monitoring tower of a windmill or the like, or It is part of the environmental data of the windmill and is stored in the form of the data storage device, SCADA 70. In the seventh embodiment, the fatigue deterioration diagnostic device 300 is included in the windmill 1000 having the strain measuring device and the fatigue deterioration diagnostic device. However, it is also possible to adopt a mode in which the SCADA 70 is incorporated into the SCADA 70.
第8圖為表示本發明的第五實施方式之風車的運轉控制裝置之概要的方塊圖。又，第8圖中，為使構成易於瞭解，乃將上述各實施例所說明之實測應力算出器30及正常應力算出器40、疲勞劣化比較器(疲勞加速係數算出器)50、疲勞劣化演算器60作為疲勞劣化診斷裝置300表示。 Fig. 8 is a block diagram showing an outline of an operation control device for a wind turbine according to a fifth embodiment of the present invention. In addition, in the eighth drawing, in order to make the configuration easy to understand, the actual stress calculation device 30, the normal stress calculator 40, the fatigue deterioration comparator (fatigue acceleration coefficient calculator) 50, and the fatigue deterioration calculation described in each of the above embodiments are used. The device 60 is shown as the fatigue deterioration diagnostic device 300.
第8圖所示之風車的運轉控制裝置2000具有：疲勞劣化診斷裝置300，其將基於出自疲勞劣化診斷對象的風車處設置之應變量測裝置10的輸出值即感測器資料所算出的實測應力值、及基於出自設置於風車的特定部位之風向風速計20的輸出值所算出的正常應力值作為輸入，而輸出表示風車之經年疲勞劣化的程度之疲勞劣化度S10；以及運轉控制器80，其將自疲勞劣化診斷裝置300輸出的疲勞劣化度作為輸入，比較疲勞劣化度與運轉基準值，並輸出運轉控制信號S20。此運轉控制裝置2000輸出運轉控制信號S20。 The operation control device 2000 of the wind turbine shown in Fig. 8 includes a fatigue deterioration diagnosis device 300 that calculates the measured value based on the sensor data of the strain amount measuring device 10 provided at the windmill from the fatigue deterioration diagnosis target. The stress value and the normal stress value calculated based on the output value of the wind direction anemometer 20 provided at a specific portion of the windmill are input, and the fatigue deterioration degree S10 indicating the degree of fatigue deterioration of the windmill over the years is output; and the operation controller 80. The fatigue deterioration degree output from the fatigue deterioration diagnostic device 300 is input, and the fatigue deterioration degree and the operation reference value are compared, and the operation control signal S20 is output. This operation control device 2000 outputs an operation control signal S20.
風車的運轉控制裝置2000係於實施例2所說 明的具有疲勞劣化診斷裝置之風車200追加運轉控制器80而成的構成，有關應變量測裝置10及疲勞劣化診斷裝置300係與已說明的內容重複，因此詳細之說明在此省略。 The windmill operation control device 2000 is as described in the second embodiment. The wind turbine 200 having the fatigue deterioration diagnostic device has a configuration in which the operation controller 80 is added. The strain measuring device 10 and the fatigue deterioration diagnostic device 300 are the same as those described above. Therefore, detailed description thereof is omitted here.
運轉控制器80係將疲勞劣化度作為輸入，例如考慮安全率下將疲勞劣化度90作為運轉基準值而輸出運轉控制信號S20，而當疲勞劣化度為運轉基準值以下時提升一般運轉或運轉率、而當疲勞劣化度較運轉基準值為大時進行抑制運轉等等。 The operation controller 80 receives the fatigue deterioration degree as an input, and outputs the operation control signal S20 with the fatigue deterioration degree 90 as the operation reference value in consideration of the safety factor, and increases the general operation or operation rate when the fatigue deterioration degree is equal to or lower than the operation reference value. When the fatigue deterioration degree is larger than the operation reference value, the operation is suppressed and the like.
藉由掌握該風車的疲勞劣化度，為使至下一次維修為止風車仍能維持運作而進行抑制運轉，或是預測故障時期，鑒於至下一次維修作業日為止的間隔，至下一次維修作業日為止使發電量成為最大之方式進行運轉等，即因應疲勞劣化度變更運轉模式，藉而可提供對於顧客的需求最適合之營運服務。 By grasping the degree of fatigue deterioration of the windmill, in order to prevent the windmill from continuing to operate until the next maintenance, or to predict the failure period, the interval from the next maintenance work day to the next maintenance work day In order to maximize the amount of power generation, the operation mode is changed in accordance with the degree of fatigue deterioration, thereby providing an operation service that is most suitable for the customer's needs.
此外，還可提供立即下單預訂零件並使下一次的檢查日較預定提早，或是也可鑒於疲勞劣化度的進行經過而重新評估維修週期等之維修調整服務。 In addition, it is also possible to provide immediate ordering of the parts and make the next inspection day earlier than scheduled, or to re-evaluate the maintenance adjustment service such as the maintenance period in view of the progress of the fatigue deterioration.
再者，藉由將疲勞劣化度對顧客，特別是對風車所有人提示，可將其作為風車的維修報告。又，有必要更換零件時，還可作為請求費用負擔時的證據。 Furthermore, by prompting the customer, especially the windmill owner, the degree of fatigue deterioration can be used as a maintenance report for the windmill. Moreover, when it is necessary to replace parts, it can also be used as evidence for the burden of the request.
根據上述各實施例，藉由來自風向風速計的風向暨風速與設置於該風車之疲勞劣化的成為檢測對象之部位的應變感測器，可推定風車的疲勞劣化。又，藉由考 慮風車的疲勞劣化度，至下一次維修為止為使損傷部位仍能維持運作，而進行抑制運轉等等，可提供最適之O&M服務(Operation-And-Mainteance)。 According to each of the above-described embodiments, the fatigue deterioration of the windmill can be estimated by the wind direction and wind speed from the wind direction anemometer and the strain sensor of the portion to be detected which is provided in the fatigue deterioration of the wind turbine. Again, by taking the test Considering the degree of fatigue deterioration of the windmill, the O&M service (Operation-And-Maintenance) can be provided to maintain the operation of the damaged part and to suppress the operation until the next maintenance.
又，本發明不受限於上述實施例，還包括各種變化例。例如，上述實施例係為使本發明易於瞭解地說明而做詳細說明者，但本發明不一定限於必須具有所說明之所有構成者。又，可將某一實施例的構成之一部分置換成其他實施例的構成，而且也可對某一實施例的構成追加其他實施例的構成。另外，針對各實施例的構成之一部分，尚可進行其他構成的追加、削除、置換。 Further, the present invention is not limited to the above embodiments, and various modifications are also included. For example, the above-described embodiments are described in detail to explain the present invention in an easy-to-understand manner, but the present invention is not necessarily limited to having all of the constituents described. Further, a part of the configuration of a certain embodiment may be replaced with a configuration of another embodiment, and a configuration of another embodiment may be added to the configuration of a certain embodiment. Further, addition, deletion, and replacement of other configurations may be performed for one of the configurations of the respective embodiments.
又，上述的各構成、機能、處理部、處理機構等，可藉由將其等的一部分或全部，例如以積體電路設計等而以硬體實現。又，上述的各構成及機能等，也可藉由利用信息處理器解讀實現各種機能的程式並予執行，而以軟體實現。實現各機能的程式、表、檔案等的資訊，可置於記憶體或硬碟、SSD(Solid State Drive)等之記錄裝置，或是IC卡、SD卡、DVD等的記錄媒體。 Further, each of the above-described configurations, functions, processing units, processing mechanisms, and the like can be realized by a part of or all of them, for example, in an integrated circuit design or the like. Further, each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes various functions by using an information processor. The information of programs, tables, files, and the like for realizing functions can be placed in a recording device such as a memory or a hard disk, an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.
又，有關控制線或資訊線係表示在說明上被考量為有必要者，不一定限於表示製品上所有的控制線或資訊線。實際上考慮幾乎所有的構成均相互連接即可。 Moreover, the relevant control line or information line indicates that it is considered necessary in the description, and is not necessarily limited to indicating all control lines or information lines on the product. In fact, it is considered that almost all of the components are connected to each other.
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