JP2017008848A - Wind power generator, wind farm and control method of wind farm - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind power generator capable of improving reliability and stabilizing a power generation amount as a whole wind power generation system.SOLUTION: A wind power generator 100 includes blades 110 rotating with wind and capable of adjusting a pitch angle, and a communication device. The wind power generator, when a trip phenomenon occurs in other wind power generators positioned on the windward side of the corresponding wind power generator, receives predetermined information by the communication device, and on the basis of the predetermined information, adjusts a pitch angle so that the blades of the wind power generator is difficult to receive wind.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wind turbine generator, and more particularly, to a wind turbine generator having a mechanism for protecting the wind turbine generator from a trip phenomenon of the wind turbine generator caused by an increase in wind speed.

  In wind power generation, which has been introduced as one of the new energies, in order to operate the wind power generation system stably and in the long term, the load on the blade that causes damage to the windmill is reduced as much as possible, and the entire wind power generation system Improving the reliability of this is an important issue.

  In a wind turbine generator, a trip phenomenon may occur due to a sudden increase in wind speed such as a gust of wind, and in that case, a load applied to the wind turbine generator increases. As a method for solving such a problem, there is known a method of installing an observation tower equipped with an anemometer for detecting a gust in advance in the vicinity of a wind power generator.

  As a background art in this technical field, for example, there is a technique such as Patent Document 1. Patent Document 1 states that “a Doppler anemometer using a Doppler effect by receiving or oscillating a sound wave or an electromagnetic wave is provided in a nacelle or a hub, and the blade angle control is performed when the Doppler anemometer detects a wind speed above a predetermined level on the windward side. A wind power generator that changes the angle of the blade by means "is disclosed.

  Further, Patent Document 2 states that “a sonic meteorological detector system for detecting and measuring a sound wave in a wind state is provided in a hub region, and the sonic meteorological detector system detects and measures a particularly undesirable wind state. In this case, a wind power generator that appropriately changes the angle of attack of the rotor blade is disclosed.

JP 2006-125265 A JP 2008-303883 A

  However, when using the aforementioned observation tower, a new structure is required in addition to the windmill, and it must be installed in various places in consideration of changes in the wind direction.

  Moreover, in the wind power generator of patent document 1, although the Doppler anemometer is used, sufficient accuracy is not necessarily obtained in long-distance measurement, and furthermore, only the direction in which the Doppler anemometer is installed can be measured.

  Moreover, in the wind power generator of patent document 2, although the wind power generator is controlled using the data of the wind and load which were measured with one certain wind power generator, the presence or absence of trip phenomenon is information on wind speed. It is difficult to accurately grasp only from the above, and there is a risk of overlooking the wind that causes the trip phenomenon.

  Accordingly, an object of the present invention is to accurately detect an increase in wind speed that causes a trip phenomenon of a wind power generation apparatus without installing a new building such as an observation tower, thereby improving reliability and generating power as a whole wind power generation system. An object of the present invention is to provide a wind turbine generator capable of stabilizing the amount.

  In order to solve the above-described problem, the present invention is a wind turbine generator that includes a blade that rotates by receiving wind and is capable of adjusting a pitch angle, and a communication device, and the wind turbine generator includes the wind turbine generator. When a trip phenomenon occurs in another wind power generator located on the windward side of the power generator, predetermined information is received by the communication device, and the blade of the wind power generator receives wind based on the predetermined information. The pitch angle is adjusted in a difficult direction.

  In addition, the present invention includes at least two first wind turbine generators that generate power by receiving wind and a second wind turbine generator installed at a position different from the first wind turbine generator. A wind farm comprising the wind power generators described above, wherein the first wind power generator and the second wind power generator are each provided with a communication device, and a trip phenomenon occurs in the first wind power generator. The predetermined information is transmitted from the first wind power generator to the second wind power generator by the communication device, and the blade of the second wind power generator is less likely to receive wind based on the predetermined information. And adjusting the pitch angle.

  The present invention is also a wind farm control method comprising at least two wind power generators, and when a trip phenomenon occurs in the windward wind power generator, predetermined information is transmitted to the wind power generator on the leeward side. Based on the predetermined information, the blade angle of the leeward wind turbine generator is adjusted so that the pitch angle is less likely to receive wind.

  According to the present invention, it is possible to accurately detect an increase in wind speed that causes a trip phenomenon of a wind power generation apparatus without installing a new building such as an observation tower, thereby improving the reliability of the wind power generation system as a whole and A wind power generator capable of stabilization can be realized.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is the conceptual diagram which looked at the wind power generator concerning one embodiment of the present invention from the side. It is the conceptual diagram which looked at the wind farm which concerns on one Embodiment of this invention from upper direction. It is the conceptual diagram which looked at the wind farm which concerns on one Embodiment of this invention from upper direction. It is a control block diagram of the wind power generator concerning one embodiment of the present invention. It is a control block diagram of the wind power generator concerning one embodiment of the present invention. It is a control flowchart of the wind power generator concerning one embodiment of the present invention. It is a control block diagram of the wind power generator concerning one embodiment of the present invention. It is a control flowchart of the wind power generator concerning one embodiment of the present invention. It is the conceptual diagram which looked at the wind farm which concerns on one Embodiment of this invention from upper direction. It is a control block diagram of the wind power generator concerning one embodiment of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and detailed description of overlapping portions is omitted.

  A wind power generator and a wind farm according to the first embodiment will be described with reference to FIGS. 1 to 4. FIG. 1 shows an overall outline of a wind turbine generator 100 having blades with adjustable pitch angles. The wind power generator 100 of FIG. 1 is supported by a tower 102 that serves as a column of the wind power generator, a nacelle 104 that is supported so as to be able to yaw-rotate in a substantially horizontal plane with respect to the tower 102, and a nacelle 104 that is rotatable. And a blade 110 supported so as to be rotatable (pitch angle change) with respect to the hub 108. The rotor 112, which is a region where the hub 108 and the blade 110 are combined, rotates by receiving wind, thereby converting wind energy into rotational energy and operating the generator 106 with the rotational energy to generate power.

  Here, the pitch angle represents an attachment angle of the blade 110 with respect to the hub 108. Also, it is called fine that changing the pitch angle so that the blade 110 faces the wind and the wind energy can be collected with high efficiency, and the wind is released by making the blade parallel to the wind. Changing the pitch angle in this way is called a feather.

  The wind power generator 100 has a mechanism for controlling the pitch angle of the blade 110 and includes an anemometer 116. In addition, it has a mechanism for changing the control value of the pitch angle based on predetermined information obtained from the outside through the transceiver 114. Here, the predetermined information is, for example, information on a trip phenomenon (trip information) when a trip phenomenon occurs in a wind turbine generator located on the windward side of itself, wind direction information when a trip occurs, It may also include wind speed information.

  In FIG. 1, the transmitter / receiver 114 is installed in the nacelle 104. However, the transmitter / receiver 114 does not necessarily have to be installed in the nacelle 104, and can communicate with the outside and based on the received information. What is necessary is just to be able to control. Further, the transmitter / receiver 114 is not limited to one having both a transmission function and a reception function, and may selectively include either a transmitter having a transmission function or a receiver having a reception function. For example, the windward wind power generator 210 may have a transmission function, and the leeward wind power generator 220 may have a reception function. That is, the transceiver 114 in FIG. 1 is a communication device that can exchange information with the outside. Further, the term “external” as used herein refers to another wind power generation apparatus or a wind farm monitoring system in a wind farm in which a plurality of wind power generation apparatuses 100 are installed.

  2 and 3 show examples of a wind farm in which a plurality of wind power generators are installed. FIG. 2 shows an example of a small-scale wind farm composed of one windward wind power generator 210 and two windward wind power generators 220. FIG. 3 shows two windward wind power generators 210 and many of them. It is an example of the large-scale wind farm comprised from the leeward side wind power generator 220 of FIG. The term “wind farm” as used herein refers to a collective wind power plant or a group of wind power generators composed of at least two wind power generators.

  The wind power generation apparatus 100 installed in the wind farm includes an upwind wind power generation apparatus 210 (in the example of FIG. 3, an upwind wind power generation apparatus group 210) located on the upwind side with respect to the wind direction, and a leeward side installed on the leeward side. It is classified into the wind power generator 220 (in the example of FIGS. 2 and 3, the leeward wind power generator group 220), and the classification also changes depending on the change in the wind direction. Specifically, in the example of FIG. 3, two wind power generators are located most upwind as windward wind power generators, but of course, the number is not limited to two. May fall, and more than 3 may fall.

  The windward wind power generator 210 includes a communication unit that transmits data acquired during power generation to the leeward wind power generator 220 installed in the wind farm. The data acquired at the time of power generation includes, for example, wind direction information, wind speed information, rotor rotational speed, generator torque, and the like, and includes information that can directly or indirectly (for calculation) grasp the magnitude of the wind speed. The leeward wind power generator 220 includes a communication unit that receives data acquired by the windward wind power generator 210 in the wind farm, and reflects the received data in the control.

  The wind power generator in the present embodiment is an example of a downwind type wind power generator in which a rotor is disposed on the leeward side, but the application target of the present invention is not limited to the downwind type wind power generator. The present invention is also applicable to an upwind wind power generator in which a rotor is disposed on the windward side.

  In the present embodiment, when a trip phenomenon occurs in the windward wind power generator 210, the blade of the leeward wind power generator 220 is adjusted in a direction in which it is difficult to receive the wind, thereby avoiding the influence of the gust wind. An example of the device 220 will be described. An example of the direction in which the blade is difficult to receive wind is the feather side. Note that a state where the wind energy cannot be collected at all because the blade is substantially parallel to the wind direction is called a full feather.

  Next, the trip phenomenon will be described. In the wind power generator 100 shown in FIG. 1, when the wind speed flowing into the wind power generator 100 rises above a predetermined wind speed within a predetermined time, the control of the pitch angle cannot catch up, and the rotational speed of the rotor 112 exceeds a predetermined value. To rise. At that time, the generator 106 is stopped, whereby the torque of the generator 106 is lost. As a result, the load applied to the rotor 112 is sharply reduced, thereby increasing the rotational speed of the rotor 112. That is, in the case of a trip phenomenon, the wind speed simply increases, and the load increases rapidly compared to the case where there is no load increase due to the absence of the generator torque.

  FIG. 4 is a control block diagram of the wind power generator and the wind farm in this embodiment. In the wind farm of FIG. 2 or FIG. 3, when the windward wind power generator 210 causes a trip phenomenon, the information is installed in the wind farm and the leeward wind power located on the leeward side of the windward wind power generator 210. It transmits to the power generation device 220. When receiving the information, the leeward wind turbine generator 220 changes the pitch angle to the full feather more than the basic control value according to the distance from the windward wind turbine generator 210 that observed the trip. This prevents the blade 110 from collecting the increased wind speed.

  As a result, the rotation speed of the blade 110 of the leeward wind power generator 220 located on the leeward side of the windward wind power generator 210 is prevented from rising above a predetermined value, and the occurrence of a trip phenomenon is avoided. By avoiding the trip phenomenon of the downstream wind turbine, it is possible to avoid an increase in load due to the trip phenomenon.

  The advantages of the wind power generator in this embodiment are as follows. That is, in the present embodiment, when the windward wind power generator 210 causes a trip phenomenon, the windward wind power generator 220 located on the leeward side of the windward wind power generator 210 under the same wind condition after a few seconds. There is a high possibility of falling. Therefore, the leeward wind power generator 220 receives the trip information transmitted from the windward wind power generator 210 and shifts the pitch angle to the feather side from the basic control value in advance in preparation for a gust of wind predicted in a few seconds. .

  The wind speed of the gust is, for example, 50 m / s, but the distance between the wind power generators in the wind farm is usually several hundred meters away, and the leeward wind is detected after the wind power generator on the windward side detects the gust. It takes about 10 seconds for the wind power generator on the side to fall into a similar wind condition. Within that time, it is possible to receive the trip information from the wind power generator on the windward side and perform control in advance. Thereby, by avoiding the trip phenomenon of the leeward wind power generator 220 in advance, it is possible to suppress a decrease in the power generation amount of the leeward wind power generator 220 and to stabilize the power generation amount of the entire wind farm.

  In this embodiment, when another wind turbine generator located on the windward side from itself trips, the pitch angle of its own blade is shifted to the full feather. Since the actual wind condition generated in the power generation device is used for its own control, the accuracy of the control can be improved. In addition, it is not necessary to install a new building equipped with an anemometer for use in its own control, and it is only necessary to use an anemometer or the like originally provided on the windward wind power generator. Installation is possible.

  As shown in FIG. 4, in addition to the trip information of the windward wind power generator 210, the wind direction information measured by the wind direction anemometer 116 installed in the windward wind power generator 210 is controlled by the control arithmetic unit A306 and the transceiver. It is also possible to transmit to the leeward wind power generator 220 via 114.

  By controlling the pitch of the blades of the leeward wind power generator 220 using the trip information and the wind direction information of the leeward wind power generator 210, more accurate control is possible.

  A wind power generator and a wind farm according to the second embodiment will be described with reference to FIGS. 1 to 5. Detailed description of the same points as those in the first embodiment will be omitted.

  The feature point in the second embodiment is that the pitch angle is controlled more precisely than in the first embodiment. In the windward wind power generator 210, in addition to the information that the trip phenomenon has occurred, the wind speed and the time taken to pass are identified (detected) from the wind speed anemometer 116 or the rotation speed of the rotor 112, and the information is obtained from the windward wind power generator 210. Call 220. Based on the information received from the windward wind power generator 210, the leeward wind power generator 220 predicts the time and wind speed when the wind speed rises, and performs basic control of the pitch according to the timing at which the wind with the wind speed exceeding the predetermined value flows. Move to the feather side more than the value.

  The pitch angle on the feather side here means that the wind turbine is controlled on the finer side than the full feather so that the wind energy can be slightly recovered when the wind of wind speed above this predetermined value passes. Yes. Thereby, the collection | recovery of wind energy can be continued and it prevents that a generator stops. When the generator 106 is stopped once, it takes time to restart again, so the power generation efficiency is improved by continuous operation of the generator.

  The advantages of the wind power generator in this embodiment are as follows. That is, in the present embodiment, as in the first embodiment, the actual wind conditions generated in the other wind power generators located on the windward side are used for own control, so that the control accuracy can be improved. become. In addition, by shifting the pitch angle to the finer side than the full feather according to the wind speed measured by the windward wind power generator 210, it is possible to continue the recovery of wind energy and make time for the generator 106 to stop. Absent. When the generator 106 is stopped once, it takes a long time to restart. Therefore, by continuously operating the generator 106, the power generation efficiency can be improved.

  A wind power generator and a wind farm in Example 3 will be described with reference to FIGS. 1 to 5. Detailed description of the same points as those in the first and second embodiments will be omitted.

  As a feature point in the third embodiment, unlike the first and second embodiments, the timing at which the pitch angle is controlled is controlled by using the wind speed measured by the wind direction anemometer 116 in the windward wind power generator 210. In the point. In the windward wind turbine generator 210, in addition to the information that the trip phenomenon has occurred, the wind speed and the time taken to pass are identified (detected) from the wind speed anemometer 116 or the rotation speed of the rotor 112, and the information is obtained from the windward wind power generator. Make a call to device 220. Based on the information received from the windward wind power generator 210, the leeward wind power generator 220 predicts the time and wind speed when the wind speed rises. Move to the feather side.

  The advantages of the wind power generator in this embodiment are as follows. That is, in the present embodiment, as in the first embodiment, the actual wind conditions generated in the other wind power generators located on the windward side are used for own control, so that the control accuracy can be improved. become. In addition, since the time for controlling the pitch angle is changed according to the wind speed measured by the windward wind power generator 210, the time for escaping the wind energy can be shortened, and the power generation efficiency can be improved.

  A wind power generator and a wind farm in Example 4 will be described with reference to FIGS. 1 to 6. Detailed description of points that overlap with the first to third embodiments will be omitted.

  In the fourth embodiment, the windward wind power generator 210 has a mode switching function that changes the pitch control method according to the wind speed measured by the windward wind power generator 210. When the wind speed measured in the windward wind power generator 210 is equal to or higher than a predetermined value, the windward wind power generator 210 transmits information to the leeward wind power generator 220. Upon receiving the information, the leeward wind power generator 220 shifts the pitch angle to a full feather as soon as the information is received, thereby avoiding a trip phenomenon due to a gust of wind.

  Next, when the wind speed measured in the windward wind power generator 210 is less than a predetermined value, the leeward wind power generator 220 uses the information received from the windward wind power generator 210 to increase the time and the wind speed. The pitch is shifted to the feather side beyond the basic control value in accordance with the timing when wind of a predetermined value or more flows. The pitch angle on the feather side here means that the wind turbine is controlled on the finer side than the full feather so that the wind energy can be slightly recovered when the wind of wind speed above this predetermined value passes. Yes.

  With the mode switching function described above, it is possible to improve the amount of power generation while avoiding the windmill trip phenomenon.

  A wind power generator and a wind farm in Example 5 will be described with reference to FIGS. 1 to 6. Detailed description of points that overlap with the first to fourth embodiments will be omitted.

  The fifth embodiment relates to a wind farm in which a plurality of wind power generators having the mechanism described in any of the first to fourth embodiments are installed.

  In the wind farm, the wind power generator 100 installed on the outermost side always measures the wind direction, and when there is no wind power generator on the windward side of itself, it functions as the windward wind power generator 210. In that case, the wind power generation apparatus 100 existing on its own leeward side is determined as the leeward wind power generation apparatus 220, and when it trips, the information is transmitted to the leeward wind power generation apparatus 220.

  With the above system, it is possible to reliably avoid a trip phenomenon in a wind farm including a plurality of wind power generators 100, and the amount of power generation in the entire wind farm can be improved.

  A wind power generator and a wind farm of Example 6 will be described with reference to FIGS. 7 and 8. Detailed description of points that overlap with the first to fifth embodiments will be omitted.

  As shown in FIG. 7, the wind turbine generator in the present embodiment includes a trip sensing unit 302 that senses a trip phenomenon of the generator 106 in the windward wind turbine generator 210. Further, a wind direction detection unit 304 and a wind speed detection unit 305 that detect the wind direction and the wind speed measured by the wind direction anemometer 116 are provided.

  Information on the trip phenomenon, wind direction, and wind speed of the windward wind turbine generator 210 detected by the trip sensing unit 302, the wind direction detection unit 304, and the wind speed detection unit 305 is input to the control calculation unit A306. Information regarding the windward wind power generator 210 input to the control arithmetic unit A306 is transmitted to the transmission / reception unit 114, and transmitted to the leeward wind power generator 220 by communication means such as wireless communication or wired communication.

  Information on the windward wind power generator 210 received by the transmission / reception unit 114 of the leeward wind power generator 220, that is, information on trip phenomenon, wind direction, and wind speed, is transmitted to the control calculation unit B308, and the leeward side in the control calculation unit B308 The blade pitch angle and yaw angle that can prevent the wind power generator 220 from tripping are calculated. The calculated pitch angle and yaw angle are transmitted to the pitch control device 310 and the yaw control device 313, respectively, and the pitch drive device 312 and the yaw drive device 314 perform pitch control and yaw control.

  FIG. 8 shows a control flow of the leeward wind power generator in the present embodiment.

First, the transmission / reception unit 114 of the leeward wind power generator 220 receives trip information and wind direction / wind speed information of wind turbines in the same wind farm. (Step S501)
Next, it is determined whether or not the wind turbine of the received information is located on the windward side of itself (the leeward wind power generator 220). (Step S503)
When it is determined that the wind turbine is not located on the windward side, the leeward wind power generator 220 continues normal control (normal operation). (Step S507)
On the other hand, when it is determined that the windmill is located on the windward side, it is determined whether or not the wind speed at the time of trip of the windmill that is the target of the received information is equal to or higher than a predetermined value. (Step S505)
If it is determined in step S505 that the wind speed during the trip is slower than the predetermined value, the pitch angle of the blade 110 of the leeward wind power generator 220 is shifted to the feather side from the reference value, and the leeward wind power generator 220 is operated. Continue. (Step S507)
On the other hand, if it is determined in step S505 that the wind speed during the trip is equal to or higher than the predetermined value, the control calculation unit B308 shown in FIG. 7 performs calculation processing based on the received trip information and wind direction / wind speed information, and the leeward side The pitch angle of the blade 110 of the wind power generator 220 is shifted to full feather, or the yaw control of the leeward wind power generator 220 is shifted to free yaw. (Step S511)
When it is determined that the wind speed at the time of trip is slower than the predetermined value, the pitch angle of the blade 110 of the leeward wind power generator 220 is shifted to the feather side from the reference value, so that the trip phenomenon of the leeward wind power generator 220 is caused. Since the power generation operation can be continued while avoiding (reducing) the risk, it is possible to suppress a decrease in the power generation efficiency of the entire wind farm.

  When it is determined that the wind speed at the time of trip is equal to or higher than the predetermined value, the pitch angle of the blade 110 of the leeward wind power generator 220 is shifted to full feather, or the yaw control of the leeward wind power generator 220 is changed to free yaw. By shifting to, the pitch angle can be returned to the normal control again in a short time or the yaw control can be resumed after a gust has passed while avoiding tripping of the leeward wind power generator 220. Therefore, it is possible to suppress a decrease in power generation efficiency as a whole wind farm.

  A wind power generator and a wind farm of Example 7 will be described with reference to FIGS. 9 and 10. Detailed description of points that overlap with the first to sixth embodiments will be omitted.

  9 and 10 are modifications of FIG. 3 and FIG. 3 and 4 show an example in which trip information and wind direction information of the windward wind power generator 210 are directly transmitted to the windward wind power generator 220. However, FIG. 9 and FIG. In the wind power generator and wind farm, the trip information and the wind direction information of the windward wind power generator 210 are transmitted to the leeward wind power generator 220 via the central monitoring building (monitoring system) 315 of the wind farm.

  In the monitoring system installed in the central monitoring building, the installation positions of the individual wind power generators constituting the wind farm are registered. The amount of power generated by each wind power generator and the wind direction / wind speed information measured by the wind direction anemometer 116 are registered. The operating status is monitored.

  Trip information and wind direction information transmitted from the transceiver 114 of the windward wind power generator 210 is received by a transceiver (not shown) of the central monitoring building 315, and is processed by a control calculation unit (not shown) of the monitoring system. Then, the data is transmitted from the transmitter / receiver (not shown) of the central monitoring building 315 to the transmitter / receiver 114 of the leeward wind power generator 220.

  Based on the information received by the transmitter / receiver 114 of the leeward wind turbine generator 220, the control calculator B308 performs arithmetic processing, the pitch controller 310 drives the pitch driver 312 to adjust the pitch.

  In the central monitoring building (monitoring system) 315, the wind farm is based on trip information, wind direction information, installation position information of the windward wind turbine generator 210, installation position information of the leeward wind turbine generator 220, and wind direction / wind speed information. It is determined (selected) how much the pitch of the wind power generation apparatus at which installation position is to be adjusted among the plurality of leeward wind power generation apparatuses 220 constituting the individual wind power generation, and individual wind power generation based on the determination (selection) result It is possible to control the device.

  Thus, the trip phenomenon of the leeward wind power generator 220 can be prevented without performing the pitch control of the leeward wind power generator 220 more than necessary, so that the power generation amount of the entire wind farm can be stabilized. it can.

  In the present embodiment, as in the sixth embodiment, yaw control of the leeward wind power generator 220 may be performed in addition to pitch control.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 100 ... Wind power generator, 102 ... Tower, 104 ... Nacelle, 106 ... Generator, 108 ... Hub, 110 ... Blade, 112 ... Rotor, 114 ... Transmitter / receiver (transmitter / receiver), 116 ... Wind anemometer, 210 ... Windward Wind power generator (group), 220 ... leeward wind power generator (group), 302 ... trip detection unit, 304 ... wind direction detection unit, 305 ... wind speed detection unit, 306 ... control calculation unit A, 308 ... control calculation unit B, 310 ... Pitch control device, 312 ... Pitch drive device, 313 ... Yaw control device, 314 ... Yaw drive device, 315 ... Central monitoring building (monitoring system).

Claims (15)

A blade that can rotate with the wind and adjust the pitch angle,
A wind turbine generator comprising a communication device,
The wind turbine generator receives predetermined information by the communication device when a trip phenomenon occurs in another wind turbine generator located on the windward side of the wind turbine generator,
A wind power generator characterized in that, based on the predetermined information, the pitch angle is adjusted in a direction in which the blade of the wind power generator is difficult to receive wind. The wind turbine generator according to claim 1,
The said predetermined information is the trip information of said other wind power generator, The wind power generator characterized by the above-mentioned. The wind turbine generator according to claim 2,
The predetermined information further includes wind direction information measured by an anemometer provided in the other wind power generator. The wind turbine generator according to claim 2,
The predetermined information further includes wind speed information measured by an anemometer provided in the other wind power generator. The wind turbine generator according to any one of claims 1 to 4,
The pitch angle adjusted based on the predetermined information is a full feather in which the blades of the wind power generator are substantially parallel to the wind direction. The wind turbine generator according to any one of claims 1 to 4,
The pitch angle adjusted based on the predetermined information is a fine-side angle that is more susceptible to wind than a full feather in which the blades of the wind power generator are substantially parallel to the wind direction. . A first wind power generator that receives wind to generate electricity;
A wind farm comprising at least two wind power generators, including a second wind power generator installed at a position different from the first wind power generator,
Each of the first wind power generator and the second wind power generator includes a communication device,
When a trip phenomenon occurs in the first wind power generator, the communication device transmits predetermined information from the first wind power generator to the second wind power generator,
A wind farm characterized in that, based on the predetermined information, the pitch angle is adjusted in a direction in which the blades of the second wind turbine generator are unlikely to receive wind. A wind farm according to claim 7,
The wind farm according to claim 1, wherein the predetermined information is trip information of the first wind power generator. A wind farm according to claim 8,
The wind farm, wherein the predetermined information further includes wind direction information measured by an anemometer provided in the first wind power generator. A wind farm according to claim 8,
The wind farm according to claim 1, wherein the predetermined information further includes wind speed information measured by an anemometer provided in the first wind power generator. A wind farm according to any one of claims 7 to 10,
The wind farm characterized in that the pitch angle adjusted based on the predetermined information is a full feather in which the blades of the second wind power generator are substantially parallel to the wind direction. A wind farm according to any one of claims 7 to 10,
The pitch angle adjusted based on the predetermined information is an angle on the fine side where the blade of the second wind power generator is more susceptible to wind than a full feather where the blade is substantially parallel to the wind direction. Wind farm. A wind farm control method comprising at least two wind power generators,
When a trip phenomenon occurs in the wind power generator on the leeward side, predetermined information is transmitted to the wind power generator on the leeward side,
A wind farm control method characterized in that, based on the predetermined information, the pitch angle is adjusted in a direction in which the blades of the wind power generator on the leeward side hardly receive wind. A wind farm control method according to claim 13,
The wind farm control method, wherein the predetermined information is transmitted from the windward wind power generator to the leeward wind power generator via the wind farm monitoring system. A wind farm control method according to claim 14,
At least two or more wind power generators on the leeward side are installed,
In the monitoring system, a wind farm control method that selects a leeward wind turbine generator for adjusting a pitch angle based on the predetermined information.

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