JP2006057469A - Wind power generation system and method for controlling the same - Google Patents

Wind power generation system and method for controlling the same Download PDF

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JP2006057469A
JP2006057469A JP2004237538A JP2004237538A JP2006057469A JP 2006057469 A JP2006057469 A JP 2006057469A JP 2004237538 A JP2004237538 A JP 2004237538A JP 2004237538 A JP2004237538 A JP 2004237538A JP 2006057469 A JP2006057469 A JP 2006057469A
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wind
windmill
generator
power generation
generation system
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Yutaka Kuwata
豊 鍬田
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NTT Power and Building Facilities Inc
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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
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    • Y02E10/72—Wind turbines with rotation axis in wind direction

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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a failure of a windmill and a generator of a wind power generation device at a time of strong wind or power cut of commercial electric source. <P>SOLUTION: A wind power generation system constructed to supply alternating current power to a load with linking with commercial electric power source includes the windmill 10, a wind power generating device 1 including the generator 12 connected to the windmill and driven by the same, a wind speed meter 5, an anemoscope 6, a wind power generating device rotation motor 3 for changing a direction of the windmill, a stopping device 2 stopping drive of the generator and making the same in a locked condition, and a control device 4 acquiring output of the wind speed meter and the anemoscope, driving the stopping device at a time of strong wind based on the output to stop and lock the generator and controlling the direction of the windmill for wind not to hit blades of the windmill by driving the wind power generation device rotation motor. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、風力発電システムに係り、特に商用電源と連系して負荷に電力供給するようにした風力発電システム及びその制御方法に関する。   The present invention relates to a wind power generation system, and more particularly to a wind power generation system that is connected to a commercial power source and supplies power to a load and a control method thereof.

従来のこの種の風力発電システムとしては、風力発電装置の発電電力を電力供給ラインにより負荷へ供給するとともに、電力供給ラインに連系保護装置を介して商用系統を接続してなる風力発電システムが提案されている（特許文献１参照）。
特開２０００−９０２１号公報 As a conventional wind power generation system of this type, there is a wind power generation system in which power generated by a wind power generator is supplied to a load through a power supply line, and a commercial system is connected to the power supply line via an interconnection protection device. It has been proposed (see Patent Document 1).
JP 2000-9021

従来の商用電源と連系して負荷に電源供給する風力発電システムでは、風車の回転により発電機を駆動して発電するが、強風時や商用電源が停電時には、風力発電装置を停止させる。
このとき、風車の向きをそのままにしておくと、風車の羽根が風圧により破壊され、あるいは、風車と発電機の連結部に過大な応力がかかり、連結部が破損する虞がある。
しかしながら、従来の風力発電システムでは、風力発電装置の動作停止時には、風車の駆動を停止させるだけで、特に風車や、風車に連結された発電機の保護については対策を講じていなかった。 In a wind power generation system that supplies power to a load in conjunction with a conventional commercial power supply, the generator is driven by the rotation of a windmill to generate power. However, the wind power generator is stopped during a strong wind or when the commercial power supply is interrupted.
At this time, if the direction of the windmill is left as it is, the blades of the windmill may be destroyed by the wind pressure, or the connecting portion between the windmill and the generator may be excessively stressed and the connecting portion may be damaged.
However, in the conventional wind power generation system, when the operation of the wind power generation apparatus is stopped, the driving of the windmill is merely stopped, and no measures are taken particularly for protection of the windmill or the generator connected to the windmill.

本発明は、このような事情に鑑みてなされたものであり、強風時や商用電源停電時に風力発電装置の風車や発電機の故障を防止することができる風力発電システムを提供することを目的とする。   This invention is made in view of such a situation, and it aims at providing the wind power generation system which can prevent the failure of the windmill and generator of a wind power generator at the time of a strong wind or a commercial power failure. To do.

上記目的を達成するために請求項１に記載の発明は、風車と、該風車に連結され該風車により駆動される発電機とを有する風力発電装置を含み、商用電源と連系して負荷に交流電力を供給するように構成された風力発電システムの制御方法において、強風時に前記風車の羽根に風が当たらないように風車の向きを制御し、かつ前記発電機を停止させ、ロックすることを特徴とする。   In order to achieve the above object, an invention according to claim 1 includes a wind turbine generator having a wind turbine and a generator connected to the wind turbine and driven by the wind turbine, and is connected to a commercial power source to load. In a control method of a wind power generation system configured to supply alternating current power, controlling the direction of the wind turbine so that the wind does not hit the blades of the wind turbine in a strong wind, and stopping and locking the generator Features.

また、請求項２に記載の発明は、商用電源と連系して負荷に交流電力を供給するように構成された風力発電システムにおいて、風車と、該風車に連結され該風車により駆動される発電機とを有する風力発電装置と、風速計と、風向計と、風車の向きを変化させる駆動手段と、前記発電機の駆動を停止させ、ロック状態とする停止手段と、前記風速計及び風向計の出力を取り込み、これらの出力に基づいて強風時に、前記停止手段を駆動して、前記発電機を停止させてロック状態とし、かつ前記駆動手段を駆動し、前記風車の羽根に風が当たらないように風車の向きを制御する制御手段とを有することを特徴とする。   According to a second aspect of the present invention, there is provided a wind power generation system configured to supply AC power to a load in linkage with a commercial power source, and a power generation connected to the windmill and driven by the windmill. A wind turbine generator, an anemometer, an anemometer, a drive means for changing the direction of the windmill, a stop means for stopping the generator to be in a locked state, the anemometer and the anemometer In response to strong winds based on these outputs, the stopping means is driven to stop the generator in a locked state, and the driving means is driven so that wind does not hit the blades of the windmill. And a control means for controlling the direction of the windmill.

また、請求項３に記載の発明は、請求項２に記載の風力発電システムにおいて、前記風力発電システムの各部は、第１の連系装置を介して商用電源に接続され、かつ第２の連系装置を介して交流電源装置に接続され、前記第１の連系装置は、通常は前記風力発電システムの各部と商用電源とを接続するＯＮ状態にあり、強風時または商用電源の停電時にＯＦＦ状態となるように動作し、前記第２の連系装置は、強風時に第１の連系装置がＯＦＦ状態となった際に前記風力発電システムの各部と前記交流電源装置とを接続するＯＮ状態とするように動作することを特徴とする。   The invention according to claim 3 is the wind power generation system according to claim 2, wherein each part of the wind power generation system is connected to a commercial power source via the first interconnection device and is connected to the second power generation system. The first interconnection device is normally in an ON state for connecting each part of the wind power generation system and a commercial power source, and is turned off at the time of strong wind or a power failure of the commercial power source. The second interconnection device is in an ON state in which each part of the wind power generation system and the AC power supply device are connected when the first interconnection device is in an OFF state during a strong wind. It is characterized by operating as follows.

以上説明したように、本発明によれば、風車と、該風車に連結され該風車により駆動される発電機とを有する風力発電装置を含み、商用電源と連系して負荷に交流電力を供給するように構成された風力発電システムにおいて、強風時に前記風車の羽根に風が当たらないように風車の向きを制御し、かつ前記発電機を停止させ、ロックするようにしたので、強風時や商用電源停電時に風力発電装置の風車や発電機の故障を防止することができる。   As described above, according to the present invention, a wind turbine generator including a wind turbine and a generator connected to the wind turbine and driven by the wind turbine is provided, and AC power is supplied to a load in conjunction with a commercial power source. In the wind power generation system configured to do so, the direction of the windmill is controlled so that the wind does not hit the blades of the windmill during strong winds, and the generator is stopped and locked. It is possible to prevent wind turbines and generators from being damaged during a power failure.

以下、本発明の実施形態を、図面を参照して詳細に説明する。本発明の実施形態に係る風力発電システムの構成を図１に示す。同図において、本発明の実施形態に係る風力発電システムは、風力発電装置１と、停止装置２と、風力発電装置回転用モータ３と、制御装置４と、風速計５と、風向計６とを有している。
風力発電装置１は、風車１０と、ギアボックス１１と、発電機１２と、風車１０の向き（方位）を検知する方位計１３とを有している。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The structure of the wind power generation system which concerns on embodiment of this invention is shown in FIG. In the figure, the wind power generation system according to the embodiment of the present invention includes a wind power generation device 1, a stop device 2, a wind power generation device rotating motor 3, a control device 4, an anemometer 5, and an anemometer 6. have.
The wind turbine generator 1 includes a windmill 10, a gear box 11, a generator 12, and an azimuth meter 13 that detects the direction (azimuth) of the windmill 10.

風車１０の回転軸は、ギアボックス１１を介して発電機１２の入力軸に連結されており、ギアボックス１１は、風車の回転速度を増速させて発電機１２の入力軸に伝達する機能を有している。
停止装置２は、発電機１２を停止させ、回転できないようにロック状態にする機能を有している。停止装置２は、本発明の停止手段に相当する。
風力発電装置回転用モータ３は、図示してない減速装置を含んで構成され制御装置４の制御下に風力発電装置１の向き、すなわち風車１０の向きを変更するように風力発電装置１全体を回転させる機能を有している。風力発電装置回転用モータ３は、本発明の駆動手段に相当する。 The rotating shaft of the windmill 10 is connected to the input shaft of the generator 12 via the gear box 11, and the gearbox 11 has a function of increasing the rotational speed of the windmill and transmitting it to the input shaft of the generator 12. Have.
The stop device 2 has a function of stopping the generator 12 and locking it so that it cannot rotate. The stop device 2 corresponds to the stop means of the present invention.
The wind power generator rotating motor 3 includes a reduction gear (not shown), and the wind power generator 1 as a whole is changed so as to change the direction of the wind power generator 1, that is, the direction of the windmill 10 under the control of the control device 4. It has a function to rotate. The wind power generator rotating motor 3 corresponds to the driving means of the present invention.

制御装置４は、風速計５、風向計６及び方位計１３の出力を取り込み、これらの出力に基づいて強風時に、停止装置２を駆動して、発電機１２を停止させてロック状態とし、かつ風力発電装置回転用モータ３を駆動し、風車１０の羽根に風が当たらないように風車１０の向きを制御する機能を有している。制御装置４は、本発明の制御手段に相当する。   The control device 4 takes in the outputs of the anemometer 5, the anemometer 6 and the azimuth meter 13 and drives the stop device 2 in the event of a strong wind based on these outputs to stop the generator 12 in a locked state, and It has a function of driving the wind power generator rotating motor 3 and controlling the direction of the windmill 10 so that the wind does not hit the blades of the windmill 10. The control device 4 corresponds to the control means of the present invention.

この風力発電システムは、商用電源８と連系して負荷７に交流電力を供給するように構成されている。
商用電源８は、第１の連系装置９を介して制御装置４及び風力発電装置回転用モータ３に交流電力を供給するように接続されている。
また、交流電源装置１５が第２の連系装置１１を介して制御装置４及び風力発電装置回転用モータ３に接続されている。
交流電源装置１５は、蓄電池１５０と、蓄電池１５０の出力を交流電力に変換するインバータ装置１５１とから構成されている。交流電源装置１５は、この構成に限らず、エンジン発電機とインバータ装置とで構成してもよい。 This wind power generation system is configured to supply AC power to the load 7 in conjunction with the commercial power supply 8.
The commercial power supply 8 is connected to supply AC power to the control device 4 and the wind power generator rotating motor 3 via the first interconnection device 9.
Further, the AC power supply device 15 is connected to the control device 4 and the wind power generator rotating motor 3 via the second interconnection device 11.
The AC power supply device 15 includes a storage battery 150 and an inverter device 151 that converts the output of the storage battery 150 into AC power. The AC power supply device 15 is not limited to this configuration, and may be configured with an engine generator and an inverter device.

第１の連系装置９は、通常は風力発電システムの各部（制御装置４及び風力発電装置回転用モータ３）と商用電源８とを接続するようにＯＮ状態となり、強風時または商用電源８の停電時にＯＦＦ状態となるように動作し、第２の連系装置１１は、強風時に第１の連系装置９がＯＦＦ状態となった際に風力発電システムの各部と交流電源装置１０とを接続するようにＯＮ状態となるように動作する。第１の連系装置９、第２の連系装置１１の動作は、本実施形態では、制御装置４により制御されるものとするが、これに限定されない。例えば、第１の連系装置９が、商用電源の停電状態を検知して、自律的に接点の遮断動作を行い、また第２の連系装置１１が第１の連系装置９がＯＦＦ状態にあることを検知して、自律的に接点をＯＮ状態とするように動作するようにしてもよい。   The first interconnection device 9 is normally in an ON state so as to connect each part of the wind power generation system (the control device 4 and the motor 3 for rotating the wind power generation device) and the commercial power supply 8, and during the strong wind or the commercial power supply 8 The second interconnection device 11 is connected to the AC power supply device 10 and each part of the wind power generation system when the first interconnection device 9 is turned off during a strong wind. It operates so as to be in the ON state. The operations of the first interconnection device 9 and the second interconnection device 11 are controlled by the control device 4 in the present embodiment, but are not limited thereto. For example, the first interconnection device 9 detects a power failure state of the commercial power supply, autonomously performs a contact disconnection operation, and the second interconnection device 11 is in the OFF state of the first interconnection device 9. It may be configured to detect the presence of the contact and autonomously set the contact point to the ON state.

上記構成からなる本発明の実施形態に係る風力発電システムの動作を図２のフローチャートを参照して説明する。同図において、通常の動作状態では、第１の連系装置９が接続（ＯＮ）状態となっており、この状態では商用電源８と風力発電システムとで連系して負荷７に交流電力が供給されている。
制御装置４は、風速計５、風向計６及び方位計１３の出力を取り込み、内蔵するメモリに格納する（ステップ２００）。
制御装置４は、上記メモリに格納された風速から風力を算出する（ステップ２０１）。 The operation of the wind power generation system according to the embodiment of the present invention having the above configuration will be described with reference to the flowchart of FIG. In the figure, in a normal operation state, the first interconnection device 9 is in a connected (ON) state. In this state, the commercial power supply 8 and the wind power generation system are connected to each other and AC power is supplied to the load 7. Have been supplied.
The control device 4 takes in the outputs of the anemometer 5, the anemometer 6 and the azimuth meter 13 and stores them in a built-in memory (step 200).
The control device 4 calculates wind power from the wind speed stored in the memory (step 201).

次いで、制御装置４は、現在の風力が基準下限値以下である場合には無風状態であると判定し（ステップ２０２）、このとき風力発電はできない状態にあり（ステップ２０３）、第１の連系装置９をＯＦＦ状態とする（ステップ２０４）。
この場合には風車１０の方向制御ができない状態のままとなる（ステップ２０５）。ここで、風力の基準下限値とは、無風状態であるか否かを判定するための風力の基準値である。 Next, the control device 4 determines that there is no wind when the current wind power is equal to or lower than the reference lower limit value (step 202). At this time, wind power generation is not possible (step 203), and the first link is determined. The system device 9 is turned off (step 204).
In this case, the direction of the wind turbine 10 cannot be controlled (step 205). Here, the reference lower limit value of wind force is a reference value of wind force for determining whether or not there is no wind.

一方、ステップ２０２で無風状態ではないと判定した場合には、強風状態であるか否かを判定する（ステップ２０６）。制御装置４は、現在の風力が基準上限値を超える場合には強風であると判定し（ステップ２０６）、停止装置２を駆動し、発電機１２の駆動を停止させかつ、ロック状態とし（ステップ２０７）、発電機１２は発電できない状態となる（ステップ２０８）。ここで、風力の基準上限値とは、強風であるか否かを判定するための風力の基準値である。   On the other hand, when it is determined in step 202 that there is no wind, it is determined whether or not there is a strong wind (step 206). When the current wind power exceeds the reference upper limit value, the control device 4 determines that the wind power is strong (step 206), drives the stop device 2, stops the driving of the generator 12, and enters the locked state (step). 207), the generator 12 is in a state where it cannot generate power (step 208). Here, the wind power reference upper limit value is a wind power reference value for determining whether or not the wind is strong.

この後、第１の連系装置９をＯＦＦ状態とする（ステップ２０９）。次いで第２の連系装置をＯＮ状態とする（ステップ２１０）。この結果、風力発電システムの各部には、交流電源装置１５から電源が供給される。次いでさらに、風力発電装置回転用モータ３を駆動し（ステップ２１１）、方位計１１で検出された風力発電装置１の方位と風向計６の出力（風向き）、すなわち、風車の向きが風向きと一致したか否かを判定し（ステップ２１２）、風車の向きが風向きと一致していない場合には、さらに、風車の向きが風向きと一致するまで風力発電装置回転用モータ３を駆動する（ステップ２１１）。そして、風車の向きが風向きと一致した場合には、風力発電装置回転用モータ３の駆動を停止する（ステップ２１２、２１３）。   Thereafter, the first interconnection device 9 is turned off (step 209). Next, the second interconnection device is turned on (step 210). As a result, power is supplied from the AC power supply device 15 to each part of the wind power generation system. Next, the wind power generator rotation motor 3 is further driven (step 211), and the direction of the wind power generator 1 detected by the azimuth meter 11 and the output (wind direction) of the anemometer 6, that is, the direction of the windmill coincides with the wind direction. (Step 212) If the wind turbine direction does not match the wind direction, the wind power generator rotating motor 3 is further driven until the wind turbine direction matches the wind direction (step 211). ). And when the direction of a windmill corresponds with a wind direction, the drive of the motor 3 for wind power generator rotation is stopped (step 212, 213).

一方、ステップ２０６で現在の風力が基準上限値以下、すなわち強風ではないと判定した場合には、発電可能状態となり（ステップ２１４）、次いで商用電源８が正常であるか否かを判定する（ステップ２１５）。
ステップ２１５で商用電源８が正常であると判定した場合には、第１の連系装置９をＯＮ状態とし、次いで風力発電装置回転用モータ３を駆動する（ステップ２１６、２１７）。 On the other hand, if it is determined in step 206 that the current wind power is equal to or lower than the reference upper limit value, that is, not a strong wind, the power generation is possible (step 214), and then it is determined whether or not the commercial power supply 8 is normal (step 214). 215).
If it is determined in step 215 that the commercial power supply 8 is normal, the first interconnection device 9 is turned on, and then the wind power generator rotation motor 3 is driven (steps 216 and 217).

次に、方位計１１で検出された風力発電装置１の方位と風向計６の出力（風向き）、すなわち、風車の向きが風向きと一致したか否かを判定し（ステップ２１８）、風車の向きが風向きと一致していない場合には、さらに、風車の向きが風向きと一致するまで風力発電装置回転用モータ３を駆動する（ステップ２１７）。
そして、ステップ２１８で風車の向きが風向きと一致した場合には、風力発電装置回転用モータ３の駆動を停止し（ステップ２１９）、商用電源８が風力発電システムと連系して負荷７に交流電力を供給する通常の運転を行う。 Next, it is determined whether or not the direction of the wind turbine generator 1 detected by the direction meter 11 and the output (wind direction) of the anemometer 6, that is, the direction of the windmill coincides with the wind direction (step 218). If the wind direction does not match the wind direction, the wind power generator rotating motor 3 is further driven until the wind turbine direction matches the wind direction (step 217).
If the direction of the windmill coincides with the wind direction in step 218, the driving of the wind power generator rotating motor 3 is stopped (step 219), and the commercial power source 8 is connected to the wind power generation system and AC to the load 7 Perform normal operation to supply power.

一方、ステップ２１５で商用電源８が正常でないと判定した場合には、第１の連系装置９をＯＦＦ状態とする（ステップ２２０）。この結果、風力発電装置１の発電電力は低減し（ステップ２２１）、次いで風力発電装置回転用モータ３を駆動する（ステップ２２２）。ここで、「商用電源が正常でない」とは、商用電源が停電状態にあるか、電源電圧が定格出力レベルに比して異常に低下した状態をいうものとする。   On the other hand, if it is determined in step 215 that the commercial power supply 8 is not normal, the first interconnection device 9 is turned off (step 220). As a result, the power generated by the wind power generator 1 is reduced (step 221), and then the wind power generator rotating motor 3 is driven (step 222). Here, “commercial power supply is not normal” means that the commercial power supply is in a power outage state or that the power supply voltage is abnormally lower than the rated output level.

次に、方位計１１で検出された風力発電装置１の方位と風向計６の出力（風向き）、すなわち、風車の向きが風向きと一致したか否かを判定し（ステップ２２３）、風車の向きが風向きと一致していない場合には、さらに、風車の向きが風向きと一致するまで風力発電装置回転用モータ３を駆動する（ステップ２２２）。そして、風車の向きが風向きと一致した場合には、風力発電装置回転用モータ３の駆動を停止する（ステップ２２３、２２４）。そして、商用電源８が復帰すると、ステップ２１４〜２１９の処理を行い、再び、商用電源８が風力発電システムと連系して負荷７に交流電力を供給する通常の運転を行うこととなる。   Next, it is determined whether the direction of the wind turbine generator 1 detected by the direction meter 11 and the output (wind direction) of the wind direction meter 6, that is, the direction of the windmill coincides with the wind direction (step 223). If the wind direction does not match the wind direction, the wind power generator rotating motor 3 is further driven until the wind turbine direction matches the wind direction (step 222). And when the direction of a windmill corresponds with a wind direction, the drive of the motor 3 for a wind power generator rotation is stopped (steps 223, 224). Then, when the commercial power supply 8 is restored, the processes of steps 214 to 219 are performed, and the commercial power supply 8 is connected to the wind power generation system again to perform a normal operation for supplying AC power to the load 7.

本発明の実施形態に係る風力発電システムによれば、強風時に前記風車の羽根に風が当たらないように風車の向きを制御し、かつ前記発電機を停止させ、ロックするようにしたので、強風時に風力発電装置の風車や発電機の故障を防止するこができる。   According to the wind power generation system according to the embodiment of the present invention, since the wind turbine is controlled so that the wind does not hit the blades of the wind turbine in a strong wind, and the generator is stopped and locked. Sometimes it is possible to prevent wind turbines and generators from being damaged.

本発明の実施形態に係る風力発電システムの構成を示すブロック図である。It is a block diagram which shows the structure of the wind power generation system which concerns on embodiment of this invention. 図１に示した本発明の実施形態に係る風力発電システムの動作状態を示すフローチャートである。It is a flowchart which shows the operation state of the wind power generation system which concerns on embodiment of this invention shown in FIG. 図１に示した本発明の実施形態に係る風力発電システムの動作状態を示すフローチャートである。It is a flowchart which shows the operation state of the wind power generation system which concerns on embodiment of this invention shown in FIG. 図１に示した本発明の実施形態に係る風力発電システムの動作状態を示すフローチャートである。It is a flowchart which shows the operation state of the wind power generation system which concerns on embodiment of this invention shown in FIG.

符号の説明Explanation of symbols

１…風力発電装置、２…停止装置、３…風力発電装置回転用モータ、４…制御装置、５…風速計、６…風向計、７…負荷、８…商用電源、９…第１の連系装置、１０…風車、１１…ギアボックス、１２…発電機、１３…方位計、１５…交流電源装置、1５０…蓄電池、１５１…インバータ装置

DESCRIPTION OF SYMBOLS 1 ... Wind power generator, 2 ... Stop device, 3 ... Motor for wind power generator rotation, 4 ... Control device, 5 ... Anemometer, 6 ... Anemometer, 7 ... Load, 8 ... Commercial power supply, 9 ... First connection System device, 10 ... windmill, 11 ... gear box, 12 ... generator, 13 ... compass, 15 ... AC power supply device, 150 ... storage battery, 151 ... inverter device

Claims (3)

風車と、該風車に連結され該風車により駆動される発電機とを有する風力発電装置を含み、商用電源と連系して負荷に交流電力を供給するように構成された風力発電システムの制御方法において、
強風時に前記風車の羽根に風が当たらないように風車の向きを制御し、かつ前記発電機を停止させ、ロックすることを特徴とする風力発電システムの制御方法。 A method for controlling a wind power generation system including a wind turbine and a wind turbine generator having a generator connected to the wind turbine and driven by the wind turbine and configured to supply AC power to a load in conjunction with a commercial power source In
A method for controlling a wind power generation system, characterized by controlling a direction of a windmill so that wind does not hit the blades of the windmill during a strong wind, and stopping and locking the generator. 商用電源と連系して負荷に交流電力を供給するように構成された風力発電システムにおいて、
風車と、該風車に連結され該風車により駆動される発電機とを有する風力発電装置と、
風速計と、
風向計と、
風車の向き及び該風車の羽根の向きを変化させる駆動手段と、
前記発電機の駆動を停止させ、ロック状態とする停止手段と、
前記風速計及び風向計の出力を取り込み、これらの出力に基づいて強風時に、前記停止手段を駆動して、前記発電機を停止させてロック状態とし、かつ前記駆動手段を駆動し、前記風車の羽根に風が当たらないように風車の向きを制御する制御手段と、
を有することを特徴とする風力発電システム。 In a wind power generation system configured to supply AC power to a load in conjunction with a commercial power supply,
A wind turbine generator having a windmill and a generator connected to the windmill and driven by the windmill;
An anemometer,
An anemometer,
Driving means for changing the direction of the windmill and the direction of the blades of the windmill;
Stop means for stopping the generator and bringing it into a locked state;
The outputs of the anemometer and anemometer are taken in, and when the wind is strong based on these outputs, the stopping means is driven to stop the generator to be locked, and the driving means is driven, Control means for controlling the direction of the windmill so that the wind does not hit the blades;
A wind power generation system characterized by comprising: 前記風力発電システムの各部は、第１の連系装置を介して商用電源に接続され、かつ第２の連系装置を介して交流電源装置に接続され、前記第１の連系装置は、通常は前記風力発電システムの各部と商用電源とを接続するＯＮ状態にあり、強風時または商用電源の停電時にＯＦＦ状態となるように動作し、
前記第２の連系装置は、強風時に第１の連系装置がＯＦＦ状態となった際に前記風力発電システムの各部と前記交流電源装置とを接続するＯＮ状態とするように動作することを特徴とする請求項２に記載の風力発電システム。

Each part of the wind power generation system is connected to a commercial power supply via a first interconnection device and connected to an AC power supply device via a second interconnection device. Is in an ON state for connecting each part of the wind power generation system and a commercial power source, and operates so as to be in an OFF state at the time of strong wind or a power failure of the commercial power source,
The second interconnection device operates so as to be in an ON state for connecting each part of the wind power generation system and the AC power supply device when the first interconnection device is in an OFF state in a strong wind. The wind power generation system according to claim 2, wherein

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WO2011099128A1 (en) * 2010-02-10 2011-08-18 三菱重工業株式会社 Wind-powered electricity generator and method for controlling wind-powered electricity generator
KR101358276B1 (en) 2012-11-08 2014-02-06 삼성중공업 주식회사 Wind power generating system and operating method under emergency condition
JP2015127528A (en) * 2013-12-27 2015-07-09 斗山重工業株式会社 Wind farm, control method thereof and wind power generation unit
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WO2011099128A1 (en) * 2010-02-10 2011-08-18 三菱重工業株式会社 Wind-powered electricity generator and method for controlling wind-powered electricity generator
KR101110908B1 (en) 2010-02-10 2012-03-13 미츠비시 쥬고교 가부시키가이샤 Wind turbine generator and method of controling the same
US8157521B2 (en) 2010-02-10 2012-04-17 Mitsubishi Heavy Industries, Ltd. Wind turbine generator and method of controlling the same
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US10655599B2 (en) 2013-12-27 2020-05-19 DOOSAN Heavy Industries Construction Co., LTD Wind farm, control method thereof and wind power generation unit
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CN114251225A (en) * 2020-09-25 2022-03-29 乌本产权有限公司 Uninterrupted power supply in a wind power plant
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