TW201416549A - Device of actively absorbing vibration for wind power tower - Google Patents
Device of actively absorbing vibration for wind power tower Download PDFInfo
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- TW201416549A TW201416549A TW101140008A TW101140008A TW201416549A TW 201416549 A TW201416549 A TW 201416549A TW 101140008 A TW101140008 A TW 101140008A TW 101140008 A TW101140008 A TW 101140008A TW 201416549 A TW201416549 A TW 201416549A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
Description
本發明是有關於一種主動式風力發電機塔減震裝置，尤指一種可長期紀錄震動頻率及幅度，作為風力發電機構檢修依據，且可兼顧發電效率與減低支撐塔之負載強度，而達到震頻量測、風機轉速控制以及有效減震之功效者。
The invention relates to an active wind turbine tower damping device, in particular to a long-term recording vibration frequency and amplitude, as a basis for maintenance of a wind power generation mechanism, and can simultaneously consider the power generation efficiency and reduce the load intensity of the support tower, and achieve the earthquake. Frequency measurement, fan speed control and effective damping.
按，風機運轉主要是以發電效率為前提，但是在追求高效率的同時，旋轉中的葉片所帶來的軸向推力，成為塔架及機身的負載。
然，在變換不定的風速造成推力迅速改變，衍伸為塔架的震動來源，而當為了抑制塔架的振動幅度，控制系統採取效率較差的葉片傾角，卻又因此犧牲了發電效率。
今以一般習用之風機而言，其至少具有下列之缺失：
1.震頻量測系統大部分皆為獨立系統，主要作為風機狀態監診，雖有震頻及震幅訊號的輸出，但卻未能有效的與葉片轉速控制系統結合。
2.葉片轉速的控制大部分皆是依照環境的平均風速做為設定點，或是以葉片轉速為輸入值，依 照控制邏輯的增益值調整葉片傾角做為輸出，以達到控制轉速的目的。雖然對發電效率有所幫助，但卻無法兼顧減低風機的負載強度。
3.為了增加塔架強度，傳統方式均為加粗外徑或選用剛性更高的材質，此舉或能降低負載對塔架的影響，但亦會增加成本。
有鑑於此，本案之發明人特針對前述習用發明問題深入探討，並藉由多年從事相關產業之研發與製造經驗，積極尋求解決之道，經過長期努力之研究與發展，終於成功之開發出本發明「主動式風力發電機塔減震裝置」，藉以改善習用之種種問題。
According to the fact, the operation of the fan is mainly based on the power generation efficiency. However, in pursuit of high efficiency, the axial thrust caused by the rotating blades becomes the load of the tower and the fuselage.
However, the variable speed of the wind causes the thrust to change rapidly, and it is the source of the vibration of the tower. When the vibration amplitude of the tower is suppressed, the control system adopts the blade inclination angle with poor efficiency, but the power generation efficiency is sacrificed.
In the case of conventional wind turbines, it has at least the following shortcomings:
1. Most of the seismic frequency measurement systems are independent systems. They are mainly used as the state monitoring of the wind turbine. Although there are shock frequency and amplitude signal output, they are not effectively combined with the blade speed control system.
2. The control of the blade rotation speed is mostly based on the average wind speed of the environment as the set point, or the blade rotation speed is taken as the input value, and the blade inclination angle is adjusted as the output according to the gain value of the control logic to achieve the purpose of controlling the rotation speed. Although it helps the power generation efficiency, it cannot balance the load intensity of the fan.
3. In order to increase the strength of the tower, the traditional method is to increase the outer diameter or use a material with higher rigidity, which may reduce the impact of the load on the tower, but it will also increase the cost.
In view of this, the inventors of this case have intensively discussed the above-mentioned problems of conventional inventions, and actively pursued solutions through years of experience in R&D and manufacturing of related industries. After long-term efforts in research and development, they have finally succeeded in developing this book. Invented the "active wind turbine tower damping device" to improve the problems of the conventional use.
本發明之主要目之係在於，可由處理單元接收並處理轉速/震動感測單元之轉速與震動頻率等相關訊號，再由轉速控制器及震頻控制器共同決定欲到達之葉片角度，之後再以主控器配合液壓控制單元驅動葉片單元進行所需角度之調整，如此，可長期紀錄震動頻率及幅度，作為風力發電機構檢修依據，且可兼顧發電效率與減低支撐塔之負載強度，而達到震頻量測、風機轉速控制以及有效減震之功效。
為達上述之目之，本發明係一種主動式風力發電機塔減震裝置，其包含有：一具有支撐塔、發電單元及葉片單元之風力發電機構；一設於發電單元中之處理單元，其包含有一主控器、一轉速控制器及一震頻控制器；一設於發電單元中且連接發電單元與處理單元之液壓控制單元；以及一設於支撐塔中且與處理單元連接之轉速/震動感測單元。
於本發明之一實施例中，該轉速控制器與震頻控制器更進一步連接有一葉片傾角極限規範器，而該葉片傾角極限規範器係連接有一葉片傾角驅動器，且該葉片傾角驅動器係與液壓控制單元連接。
於本發明之一實施例中，該轉速/震動感測單元係包含有一轉速感測器及一加速規。
於本發明之一實施例中，該轉速/震動感測單元更可進一步連接有一訊號調節器及一資料庫。
The main purpose of the present invention is that the processing unit can receive and process the speed and vibration frequency of the speed/vibration sensing unit and other related signals, and then the speed controller and the vibration frequency controller jointly determine the blade angle to be reached, and then The main controller is combined with the hydraulic control unit to drive the blade unit to adjust the required angle. Thus, the vibration frequency and amplitude can be recorded for a long time, which can be used as the basis for maintenance of the wind power generation mechanism, and can simultaneously achieve the power generation efficiency and reduce the load intensity of the support tower. Vibration frequency measurement, fan speed control and effective damping.
In order to achieve the above, the present invention is an active wind turbine tower damping device, comprising: a wind power generation mechanism having a support tower, a power generation unit and a blade unit; and a processing unit disposed in the power generation unit, The utility model comprises a main controller, a speed controller and a frequency frequency controller; a hydraulic control unit arranged in the power generation unit and connected to the power generation unit and the processing unit; and a rotation speed which is arranged in the support tower and connected to the processing unit / Vibration sensing unit.
In an embodiment of the invention, the rotational speed controller and the seismic frequency controller are further connected with a blade inclination limit normalizer, and the blade inclination limit normalizer is connected with a blade inclination drive, and the blade inclination drive system and the hydraulic pressure Control unit connection.
In an embodiment of the invention, the speed/vibration sensing unit includes a speed sensor and an acceleration gauge.
In an embodiment of the invention, the speed/vibration sensing unit is further connected to a signal conditioner and a database.
請參閱『第１、２及第３圖』所示，係分別為本發明之基本架構示意圖、本發明基本架構之方塊示意圖及本發明之詳細方塊示意圖。如圖所示：本發明係一種主動式風力發電機塔減震裝置，其至少包含有一風力發電機構１、一處理單元２、一液壓控制單元３以及一轉速/震動感測單元４所構成。
上述所提之風力發電機構１係包含有一支撐塔１１、一與支撐塔１１結合之發電單元１２、及一與發電單元１２活動結合之葉片單元１３。
該處理單元２係設於發電單元１２中，其包含有一主控制器２１、一轉速控制器２２及一震頻控制器２３，而該轉速控制器２２與震頻控制器２３係連接有一葉片傾角極限規範器２４，而該葉片傾角極限規範器２４係連接有一葉片傾角驅動器２５。
該液壓控制單元３係設於發電單元１２中且連接發電單元１２與處理單元２之葉片傾角驅動器２５。
該轉速/震動感測單元４係設於支撐塔１１中且與處理單元２連接，而該轉速/震動感測單元４係包含有一轉速感測器４１及一加速規４２，且該轉速/震動感測單元４更可進一步連接有一訊號調節器４３及一資料庫４４。
而運用時，係由轉速/震動感測單元４之轉速感測器４１及加速規４２分別傳送轉速訊號及震動訊號至處理單元２，使該主控制器２１接收並處理該轉速訊號及震動訊號，此時，則由轉速控制器２２根據額定轉速、參考轉速及控制參數決定葉片傾角變動值，並配合震頻控制器２３根據加速規４１的訊號及控制參數，決定出一葉片傾角的變動值，而當轉速控制器２２及震頻控制器２３共同決定欲到達之葉片角度時，則由主控制器２１再將此命令送至液壓控制單元３，進而由液壓控制單元３配合葉片傾角驅動器２５驅動葉片單元１３調整至適當之角度，當葉片單元１３於調整時，係可藉由葉片傾角極限規範器２４防止傾角過低及瞬間強風，而造成風機轉速飆高，使得葉片單元１３於不同風速下會限制傾角的調整範圍。
而當上述之轉速控制器２２於決定葉片傾角變動值時，係以Kp以及Ki依據不同的運轉區間，經模擬分析與實際運轉試誤法而取得葉片傾角參考值，以輸出不同值的控制參數(增益值)予轉速控制器２２，而此控制區間可分為三段：
1.最佳功率運轉區間（平均風速介於4 m/s至7 m/s之間），稱為Region I；
2.運轉狀態轉換區間（平均風速介於7 m/s至9 m/s之間），稱為Region II；
3.滿載運轉區間（平均風速介於9 m/s至25 m/s之間），稱為Region III。
另，相關人員更可於機房或控制室中以訊號調節器４３調整運轉狀態，或進行相關之參數設定，且運轉時所有之相關資訊（如：轉速訊號、震動訊號、額定轉速、參考轉速及控制參數...等）儲存於資料庫４４中，以便作為長期之紀錄。
綜上所述，本發明主動式風力發電機塔減震裝置可有效改善習用之種種缺點，可由處理單元接收並處理轉速/震動感測單元之轉速與震動頻率等相關訊號，再由轉速控制器及震頻控制器共同決定欲到達之葉片角度，之後再以主控器配合液壓控制單元驅動葉片單元進行所需角度之調整，如此，可長期紀錄震動頻率及幅度，作為風力發電機構檢修依據，且可兼顧發電效率與減低支撐塔之負載強度，而達到震頻量測、風機轉速控制以及有效減震之功效；進而使本發明之産生能更進步、更實用、更符合消費者使用之所須，確已符合發明專利申請之要件，爰依法提出專利申請。
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍；故，凡依本發明申請專利範圍及發明說明書內容所作之簡單之等效變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。
Please refer to the "1, 2, and 3" diagrams, which are schematic diagrams of the basic architecture of the present invention, a block diagram of the basic architecture of the present invention, and a detailed block diagram of the present invention. As shown in the figure, the present invention is an active wind turbine tower damping device comprising at least one wind power generation mechanism 1, a processing unit 2, a hydraulic control unit 3, and a rotational speed/vibration sensing unit 4.
The wind power generation mechanism 1 mentioned above includes a support tower 11, a power generation unit 12 coupled to the support tower 11, and a blade unit 13 movably coupled to the power generation unit 12.
The processing unit 2 is disposed in the power generating unit 12, and includes a main controller 21, a speed controller 22 and a vibration frequency controller 23, and the speed controller 22 and the vibration frequency controller 23 are connected with a blade inclination angle. The limit gauge 24 is coupled to the blade pitch limiter 24 with a blade pitch drive 25.
The hydraulic control unit 3 is disposed in the power generating unit 12 and connects the power generating unit 12 and the blade pitch driver 25 of the processing unit 2.
The speed/vibration sensing unit 4 is disposed in the support tower 11 and connected to the processing unit 2, and the rotation/vibration sensing unit 4 includes a rotation speed sensor 41 and an acceleration gauge 42, and the rotation speed/vibration The sensing unit 4 is further connected to a signal conditioner 43 and a database 44.
In the operation, the speed signal and the vibration signal are respectively transmitted from the speed sensor 41 and the acceleration gauge 42 of the speed/vibration sensing unit 4 to the processing unit 2, so that the main controller 21 receives and processes the speed signal and the vibration signal. At this time, the rotation speed controller 22 determines the blade inclination change value according to the rated rotation speed, the reference rotation speed and the control parameter, and cooperates with the vibration frequency controller 23 to determine the variation value of the blade inclination angle according to the signal and the control parameter of the acceleration gauge 41. When the speed controller 22 and the vibration frequency controller 23 jointly determine the blade angle to be reached, the main controller 21 sends the command to the hydraulic control unit 3, and the hydraulic control unit 3 cooperates with the blade pitch driver 25. The driving blade unit 13 is adjusted to an appropriate angle. When the blade unit 13 is adjusted, the blade inclination limit gauge 24 prevents the inclination angle from being too low and the instantaneous strong wind, so that the fan speed is high, so that the blade unit 13 is at different wind speeds. The lower limit of the tilt angle is limited.
When the above-mentioned rotational speed controller 22 determines the vane inclination variation value, the reference value of the vane inclination angle is obtained by the simulation analysis and the actual operation trial and error method according to the different operation sections by K p and K i to output different values. The control parameter (gain value) is supplied to the speed controller 22, and the control interval can be divided into three segments:
1. The optimal power operation interval (average wind speed is between 4 m/s and 7 m/s), called Region I;
2. Operating state transition interval (average wind speed between 7 m/s and 9 m/s), called Region II;
3. Full load operation interval (average wind speed between 9 m/s and 25 m/s), called Region III.
In addition, the relevant personnel can adjust the operating state by the signal regulator 43 in the equipment room or the control room, or perform related parameter setting, and all relevant information during operation (such as: speed signal, vibration signal, rated speed, reference speed and Control parameters, etc.) are stored in the database 44 for use as a long-term record.
In summary, the active wind turbine tower damping device of the invention can effectively improve various disadvantages of the conventional use, and the processing unit can receive and process the related signals of the rotation speed and the vibration frequency of the speed/vibration sensing unit, and then the speed controller. And the vibration frequency controller jointly determines the blade angle to be reached, and then uses the main controller and the hydraulic control unit to drive the blade unit to adjust the required angle. Thus, the vibration frequency and amplitude can be recorded for a long time, and the wind power generation mechanism is used as a basis for maintenance. Moreover, the power generation efficiency can be balanced and the load intensity of the support tower can be reduced, thereby achieving the effects of vibration frequency measurement, fan speed control and effective damping; thereby making the invention more progressive, practical and more suitable for consumer use. It must have met the requirements of the invention patent application and filed a patent application in accordance with the law.
However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.
1．．．風力發電機構1. . . Wind power generation agency
11．．．支撐塔11. . . Support tower
12．．．發電單元12. . . Power generation unit
13．．．葉片單元13. . . Blade unit
2．．．處理單元2. . . Processing unit
21．．．主控制器twenty one. . . main controller
22．．．轉速控制器twenty two. . . Speed controller
23．．．震頻控制器twenty three. . . Earthquake frequency controller
24．．．葉片傾角極限規範器twenty four. . . Blade inclination limit gauge
25．．．葉片傾角驅動器25. . . Blade pitch drive
3．．．液壓控制單元3. . . Hydraulic control unit
4．．．轉速/震動感測單元4. . . Speed/vibration sensing unit
41．．．轉速感測器41. . . Speed sensor
42．．．加速規42. . . Acceleration gauge
43．．．訊號調節器43. . . Signal conditioner
44．．．資料庫44. . . database
第１圖，係本發明之基本架構示意圖。
第２圖，係本發明基本架構之方塊示意圖。
第３圖，係本發明之詳細方塊示意圖。
Figure 1 is a schematic diagram of the basic architecture of the present invention.
Figure 2 is a block diagram showing the basic structure of the present invention.
Figure 3 is a detailed block diagram of the present invention.
1．．．風力發電機構1. . . Wind power generation agency
11．．．支撐塔11. . . Support tower
12．．．發電單元12. . . Power generation unit
13．．．葉片單元13. . . Blade unit
2．．．處理單元2. . . Processing unit
3．．．液壓控制單元3. . . Hydraulic control unit
4．．．轉速/震動感測單元4. . . Speed/vibration sensing unit
43．．．訊號調節器43. . . Signal conditioner
44．．．資料庫44. . . database
Claims (3)
一風力發電機構，係包含有一支撐塔、一與支撐塔結合之發電單元、及一與發電單元活動結合之葉片單元；
一處理單元，係設於發電單元中，其包含有一主控制器、一轉速控制器及一震頻控制器；
一液壓控制單元，係設於發電單元中且連接發電單元與處理單元；以及
一轉速/震動感測單元，係設於支撐塔中且與處理單元連接。An active wind turbine tower damping device includes:
A wind power generation mechanism includes a support tower, a power generation unit combined with the support tower, and a blade unit coupled with the power generation unit;
a processing unit is disposed in the power generating unit, and includes a main controller, a speed controller and a frequency frequency controller;
A hydraulic control unit is disposed in the power generating unit and connected to the power generating unit and the processing unit; and a rotational speed/vibration sensing unit is disposed in the supporting tower and connected to the processing unit.
依申請專利範圍第１項所述之主動式風力發電機塔減震裝置，其中，該轉速/震動感測單元更可進一步連接有一訊號調節器及一資料庫。The active wind turbine tower damping device according to claim 1, wherein the speed/vibration sensing unit comprises a speed sensor and an acceleration gauge.
The active wind turbine tower damping device according to the first aspect of the patent application, wherein the speed/vibration sensing unit is further connected with a signal conditioner and a database.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101140008A TWI545256B (en) | 2012-10-29 | 2012-10-29 | Device of actively absorbing vibration for wind power tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101140008A TWI545256B (en) | 2012-10-29 | 2012-10-29 | Device of actively absorbing vibration for wind power tower |
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| Publication Number | Publication Date |
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| TW201416549A true TW201416549A (en) | 2014-05-01 |
| TWI545256B TWI545256B (en) | 2016-08-11 |
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| TW101140008A TWI545256B (en) | 2012-10-29 | 2012-10-29 | Device of actively absorbing vibration for wind power tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019114897A1 (en) * | 2017-12-14 | 2019-06-20 | Vestas Wind Systems A/S | Tower damping in wind turbine power production |
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2012
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019114897A1 (en) * | 2017-12-14 | 2019-06-20 | Vestas Wind Systems A/S | Tower damping in wind turbine power production |
| CN111712632A (en) * | 2017-12-14 | 2020-09-25 | 维斯塔斯风力系统集团公司 | Tower damping in wind turbine power production |
| US11319925B2 (en) | 2017-12-14 | 2022-05-03 | Vestas Wind Systems A/S | Tower damping in wind turbine power production |
| CN111712632B (en) * | 2017-12-14 | 2023-04-25 | 维斯塔斯风力系统集团公司 | Tower damping in wind turbine power production |
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| TWI545256B (en) | 2016-08-11 |
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