WO2019171829A1 - 風力発電装置の制御方法 - Google Patents

風力発電装置の制御方法 Download PDF

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Publication number
WO2019171829A1
WO2019171829A1 PCT/JP2019/002850 JP2019002850W WO2019171829A1 WO 2019171829 A1 WO2019171829 A1 WO 2019171829A1 JP 2019002850 W JP2019002850 W JP 2019002850W WO 2019171829 A1 WO2019171829 A1 WO 2019171829A1
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WIPO (PCT)
Prior art keywords
yaw error
wind
turbine generator
operation mode
wind turbine
Prior art date
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PCT/JP2019/002850
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English (en)
French (fr)
Japanese (ja)
Inventor
悠介 大竹
順弘 楠野
正利 吉村
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株式会社日立製作所
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Publication of WO2019171829A1 publication Critical patent/WO2019171829A1/ja

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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
    • F03D7/04—Automatic control; Regulation
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • 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

Definitions

  • the present invention relates to a method for controlling a wind turbine generator, and more particularly, to a method for controlling a wind turbine generator that is suitable when the wind direction flowing into the wind turbine generator changes abruptly.
  • the rotation speed of the yaw of the wind power generator is limited, when a sudden change in the wind direction occurs, the yaw control may not be able to follow the sudden change in the wind direction.
  • the wind flows obliquely to the wind power generator, there is a problem that an excessive load is generated on the mechanical structure of the wind power generator such as a blade or a yaw bearing of the wind power generator. .
  • Patent Document 1 discloses a method for controlling the pitch angle in accordance with the difference in the nacelle direction of the wind turbine generator relative to the wind direction of the wind turbine generator.
  • Patent Document 1 discloses a rotor including blades of a wind power generator, a nacelle for rotatably supporting the rotor, a yaw drive unit that rotates the nacelle, and a pitch angle of the blades of the wind power generator.
  • a pitch control step of controlling the pitch drive unit by giving a pitch angle command value to the pitch drive unit, and at least the rotational speed of the rotor between the required value calculating step of calculating the pitch angle demand value, when the angle between the at least wind direction and the nacelle orientation is the threshold value a 1 or more, a full fine pitch angle and the feather pitch angle based on A limit value setting step for setting the pitch angle as a limit value, and when the pitch angle command value is closer to the full fine pitch angle than the limit value, The limit value is set to the pitch angle command value, and when the required pitch angle value is the limit value or on the full feather pitch angle side, the required pitch angle value is set to the pitch angle command value. And a command value calculating step for controlling the wind power generation facility.
  • the present invention has been made in view of the above points, and the object of the present invention is to increase the load on the root portion of the blade of the wind power generator even if the wind direction flowing into the wind power generator changes suddenly.
  • An object of the present invention is to provide a method for controlling a wind turbine generator that can be prevented.
  • a method for controlling a wind turbine generator comprises a hub and blades, and at least supports a rotor that rotates by receiving wind and a main shaft connected to the hub.
  • the wind turbine generator flows into the wind turbine generator.
  • the operation mode of the wind power generator is changed based on wind direction data and information on the orientation of the rotating surface of the rotor of the wind power generator.
  • FIG. 1 shows the outline of the whole structure of the wind power generator to which the control method of the wind power generator of this invention is applied. It is a schematic diagram which shows the relationship between the wind power generator to which the control method of the wind power generator of this invention is applied, and a wind direction. It is a schematic diagram which shows an example of the sudden change of the wind direction in the wind power generator to which the control method of the wind power generator of this invention is applied. It is a control block diagram which shows Example 1 of the control method of the wind power generator of this invention. It is a control flowchart which shows Example 1 of the control method of the wind power generator of this invention. It is the schematic which shows the various parameter change in Example 1 of the control method of the wind power generator of this invention.
  • Example 2 It is a control block diagram which shows Example 2 of the control method of the wind power generator of this invention. It is a control flowchart which shows Example 2 of the control method of the wind power generator of this invention. It is a control block diagram which shows Example 3 of the control method of the wind power generator of this invention. It is a control flowchart which shows Example 3 of the control method of the wind power generator of this invention. It is a control block diagram which shows Example 4 of the control method of the wind power generator of this invention. It is a control flowchart which shows Example 4 of the control method of the wind power generator of this invention.
  • a downwind type wind power generator is described as an example of the wind power generator according to the embodiment of the present invention, but the present invention can be similarly applied to an upwind type wind power generator.
  • the rotor is configured with three blades and a hub is shown, the present invention is not limited to this, and the rotor may be configured with a hub and at least one blade.
  • FIG. 1 is an overall configuration diagram of a wind turbine generator to which a method for controlling a wind turbine generator according to the present invention is applied.
  • the wind turbine generator 1 includes a blade 5 that rotates by receiving wind, a hub 4 that supports the blade 5, and a nacelle 3 and a tower 2 that rotatably supports the nacelle 3. Yes.
  • a main shaft 7 that is connected to the hub 4 and rotates together with the hub 4
  • a speed increasing device 8 that is connected to the main shaft 7 and increases the rotational speed, and a rotational speed increased by the speed increasing device 8.
  • a generator 9 for generating electricity by rotating the rotor.
  • the blade 5 and the hub 4 constitute a rotor 6.
  • the part that transmits the rotational energy of the blade 5 to the generator 9 is called a power transmission unit, and in the present embodiment, the main shaft 7 and the speed increaser 8 are included in the power transmission unit.
  • the speed increaser 8 and the generator 9 are held on the main frame 10.
  • the tower 2 includes a power converter 11 that converts a frequency of power, a switching switch and a transformer (not shown) for switching current, and a control device 12. Is arranged.
  • the power converter 11 and the control device 12 are installed at the bottom of the tower 2, but the installation location of these devices is not limited to the bottom of the tower 2 and is inside the wind power generator 1. It may be installed in other places.
  • anemometer 13 for measuring wind direction data and wind speed data is installed on the upper surface of the nacelle 3.
  • the control device 12 for example, a control panel or SCADA (Supervision Control And Data Acquisition) is used.
  • a controller 15 is installed in the nacelle 3, and this controller 15 includes a yaw error calculation unit 21, a mode determination unit 24, a control determination unit 25, and an actuator controller 27 (described later).
  • the yaw error storage unit 22, the change amount calculation unit 23 of the second and fourth embodiments, and the threshold value calculation unit 26 of the third and fourth embodiments are also provided.
  • the direction of the nacelle 3 is referred to as a yaw angle
  • the wind turbine generator 1 includes a yaw angle control device 14 that controls the direction of the nacelle 3, that is, the direction of the rotating surface of the rotor 6.
  • the yaw angle control device 14 is disposed between the bottom surface of the nacelle 3 and the tip of the tower 2 and includes, for example, at least an actuator (not shown) and a motor that drives the actuator. Based on the yaw angle control command output from the control device 12 via the signal line, the motor constituting the yaw angle control device 14 rotates and the actuator is displaced by a desired amount so that the desired yaw angle is obtained.
  • the nacelle 3 rotates.
  • FIG. 2 is a schematic diagram showing the relationship between the wind power generation apparatus 1 to which the method for controlling the wind power generation apparatus 1 of the present invention is applied and the wind direction.
  • the deviation between the nacelle direction 16 and the wind direction 17 corresponding to the direction of the wind turbine generator 1 is referred to as a yaw error 18.
  • the nacelle direction 16 is controlled by the yaw angle control device 14 so that the yaw error 18 is reduced.
  • the turning speed of the nacelle direction 16 is limited, when the wind direction 17 changes rapidly, the turning of the nacelle 3 changes the wind direction. There is a problem that the yaw error 18 increases without keeping up with the change of 17.
  • FIG. 3 shows an example of a change in wind direction associated with the gust.
  • the wind turbine generator 1 When such a gust flows into the wind turbine generator 1, the wind turbine generator 1 first starts a yaw turn due to the sudden change 19 in the wind direction. However, if the wind direction changes suddenly, the yaw turn cannot catch up with the sudden change 19 in the wind direction. As a result, the yaw error 18 increases and the load generated in the wind power generator 1 increases. At this time, in order to protect the wind power generator 1, it is also conceivable to stop the wind power generator 1 when the yaw error 18 exceeds a predetermined value.
  • the wind power generator 1 is temporarily shifted to the degenerate operation mode by using a control mechanism having a quicker control response than the yaw control mechanism of the wind power generator 1, and the load increase when passing through the gust is increased. By avoiding this, the wind power generator 1 is protected while avoiding a decrease in the amount of power generated due to the stop of the wind power generator 1.
  • FIG. 4 shows a block diagram of control in this embodiment.
  • the wind direction of the wind flowing into the wind power generator 1 is measured by the wind direction anemometer 13 installed on the nacelle 3.
  • the yaw error calculation unit 21 provided in the controller 15 is used to calculate a yaw error 18 that is a deviation between the wind direction 17 flowing into the wind turbine generator 1 and the nacelle direction 16.
  • the mode determination part 24 the operation mode (normal operation mode, degeneration operation mode, stop mode) of the wind power generator 1 is determined.
  • the operation mode determined by the mode determination unit 24 is sent to the control determination unit 25 of various devices such as the pitch angle and the generator torque, and the control determination unit 25 determines the control method of each actuator.
  • the wind power generator 1 is controlled by sending the control method of the wind power generator 1 determined by the control determination unit 25 to each actuator controller 27.
  • FIG. 5 shows a control flow diagram of the wind turbine generator 1 in this embodiment.
  • the wind direction data is acquired by the wind direction anemometer 13 in S101, and the yaw error 18 with respect to the wind turbine generator 1 is calculated by the yaw error calculator 21 in S102.
  • the mode determination unit 24 determines whether the yaw error 18 is equal to or greater than the threshold value. If the yaw error 18 is equal to or less than the threshold value (No), the operation is continued as usual. Moreover, when it is discriminate
  • the mode determination unit 24 determines again whether the yaw error 18 is equal to or greater than the threshold. If the yaw error 18 is equal to or less than the threshold (No), the process returns to the normal operation mode in S125.
  • the mode determination unit 24 determines the duration of the degenerate operation mode in S106.
  • the process returns to S111 again and the same flow as above is continued.
  • the process shifts to the stop mode in S115.
  • FIG. 6 shows a schematic diagram of changes in various parameters when the control method of the present invention is applied.
  • the amount of energy itself obtained by the wind power generator 1 is reduced by changing the operation mode of the wind power generator 1 based on the wind direction 17 flowing into the wind power generator 1 (utilization of the degenerate operation mode). Therefore, it is possible to avoid an increase in the maximum load and to prevent an increase in the load on the root portion of the blade 5 of the wind turbine generator 1.
  • the yaw error 18 when the yaw error 18 is continuously large, it is possible to avoid an increase in fatigue load by shifting to the stop mode. In addition, by not immediately shifting to the stop mode when the yaw error 18 is enlarged, it is possible to reduce the number of times that the wind turbine generator 1 is started and stopped, and it is possible to reduce a decrease in the amount of power generation due to a loss of power generation opportunity.
  • FIGS. 1 to 3, 7, and 8. A control method for the wind turbine generator 1 in the second embodiment will be described with reference to FIGS. 1 to 3, 7, and 8. Detailed description of the same points as those in the first embodiment will be omitted.
  • the feature of this embodiment is that the amount of change in the yaw error 18 per predetermined time is used for the judgment of transition to the degenerate operation mode.
  • the present embodiment is characterized in that when the change amount of the wind direction 17 in the predetermined time of the yaw error 18 exceeds the threshold value, the mode is shifted to the degenerate operation mode.
  • FIG. 7 shows a block diagram of control in the present embodiment.
  • the wind direction 17 of the wind flowing into the wind power generator 1 is measured by the wind direction anemometer 13 installed on the nacelle 3.
  • the yaw error calculation unit 21 is used to calculate a yaw error 18 that is a deviation between the wind direction 17 flowing into the wind turbine generator 1 and the nacelle direction 16.
  • the yaw error 18 obtained here is stored in the yaw error storage unit 22 provided in the controller 15.
  • the yaw error 18 stored in the yaw error storage unit 22 is sent to a change amount calculation unit 23 provided in the controller 15, where the change amount of the yaw error 18 in a predetermined time is calculated.
  • the mode determination unit 24 determines the operation mode (normal operation mode, degenerate operation mode, stop mode) of the wind turbine generator 1 based on the change amount of the yaw error 18.
  • the operation mode determined by the mode determination unit 24 is sent to the control determination unit 25 of various devices such as the pitch angle and the generator torque, and the control determination unit 25 determines the control method of each actuator.
  • the wind power generator 1 is controlled by sending the control method of the wind power generator 1 determined by the control determination unit 25 to each actuator controller 27.
  • FIG. 8 shows a control flow diagram of the wind turbine generator 2 in the present embodiment.
  • the wind direction data is acquired by the wind direction anemometer 13 in S101, and the yaw error 18 with respect to the wind turbine generator 1 is calculated by the yaw error calculator 21 in S102.
  • the change amount calculation unit 23 calculates the change amount of the yaw error 18.
  • the mode determining unit 24 determines whether or not the amount of change in the yaw error 18 is equal to or greater than the threshold value. If it is equal to or less than the threshold value (No), the operation is continued as usual. Moreover, when it determines with more than a threshold value (Yes) in S134, the wind power generator 1 transfers to S105, and will be in a degeneration operation mode.
  • step S111 the wind direction data is re-acquired by the anemometer 13 in S111 again, and the yaw error 18 for the wind turbine generator 1 is recalculated by the yaw error calculator 21 in S112.
  • the change amount calculation unit 23 recalculates the change amount of the yaw error 18 in S113.
  • the mode determination unit 24 determines whether the amount of change in the yaw error 18 is equal to or greater than the threshold.
  • a threshold value different from that in S134 may be used in order to determine whether the yaw error 18 tends to decrease.
  • the advantages of the wind power generator 1 in the present embodiment are as follows.
  • the change amount of the yaw error 18 is used for determining the shift to the degenerate operation mode, so that the arrival of the gust can be determined earlier. Can do. Therefore, it is possible to avoid an increase in the maximum load earlier. Further, when the yaw error 18 is continuously large, an increase in fatigue load can be avoided by shifting to the stop mode. In addition, by not immediately shifting to the stop mode when the yaw error 18 is enlarged, it is possible to reduce the number of times the wind power generator 1 is started and stopped, and it is possible to reduce a decrease in energization amount due to loss of power generation opportunity.
  • a control method for the wind turbine generator 1 according to the third embodiment will be described with reference to FIGS. 1 to 3, 9, and 10. Detailed description of the same points as those in the first and second embodiments will be omitted.
  • the feature of this embodiment is that the judgment threshold value of the yaw error 18 is changed according to the wind speed in the judgment of transition to the degenerate operation mode.
  • the determination threshold value of the yaw error 18 is changed depending on the wind speed.
  • FIG. 9 shows a block diagram of control in the present embodiment.
  • the wind direction anemometer 13 installed on the nacelle 3 measures not only the wind direction data of the wind flowing into the wind power generator 1 but also the wind speed data.
  • the yaw error calculation unit 21 is used to calculate a yaw error 18 that is a deviation between the wind direction 17 flowing into the wind turbine generator 1 and the nacelle direction 16.
  • the threshold value calculation unit 26 calculates the threshold value of the yaw error 18 corresponding to the measured wind speed.
  • the mode determination unit 24 determines the operation mode (normal operation mode, degenerate operation mode, stop mode) of the wind turbine generator 1 based on the yaw error 18 and its threshold value.
  • the operation mode determined by the mode determination unit 24 is sent to the control determination unit 25 of various devices such as the pitch angle and the generator torque, and the control determination unit 25 determines the control method of each actuator.
  • the wind power generator 1 is controlled by sending the control method of the wind power generator 1 determined by the control determination unit 25 to each actuator controller 27.
  • FIG. 10 shows a control flow diagram of the wind turbine generator 1 in this embodiment.
  • the wind direction data and the wind speed data are acquired by the wind direction anemometer 13 in S101, and the yaw error 18 for the wind turbine generator 1 is calculated by the yaw error calculation unit 21 in S102.
  • the threshold value calculation unit 26 calculates the threshold value of the yaw error 18 in S122.
  • the mode determination unit 24 determines whether the yaw error 18 is equal to or greater than the threshold value. If the yaw error 18 is equal to or less than the threshold value (No), the operation is continued as usual. If the mode determination unit 24 determines that the threshold value is equal to or greater than the threshold value in S104 (Yes), the wind turbine generator 1 proceeds to S105 and enters the degenerate operation mode.
  • the wind direction data and the wind speed data are again acquired by the wind direction anemometer 13 in S111, and the yaw error 18 for the wind turbine generator 1 is recalculated by the yaw error calculator 21 in S112.
  • the threshold value calculation unit 26 also recalculates the threshold value of the yaw error 18 in S132.
  • the mode determination unit 24 determines again whether the yaw error 18 is equal to or greater than the threshold value.
  • the mode determination unit 24 determines the duration of the degenerate operation mode in S106.
  • the process returns to S111 again and the same flow as above is continued.
  • the process shifts to the stop mode in S115.
  • the advantages of the wind power generator 1 in the present embodiment are as follows.
  • the same effect as in the first embodiment can be obtained, and the determination threshold is determined based on the wind speed with respect to the transition to the degenerate operation mode, so the arrival of the gust is predicted with higher accuracy. be able to.
  • the determination threshold is determined based on the wind speed with respect to the transition to the degenerate operation mode, so the arrival of the gust is predicted with higher accuracy. be able to.
  • a control method for the wind turbine generator 1 according to the fourth embodiment will be described with reference to FIGS. 1 to 3, 11, and 12. Detailed description of points that overlap with the first to third embodiments will be omitted.
  • the feature of this embodiment is that the threshold value of the change amount of the yaw error 18 used for determining the transition to the degenerate operation mode and the predetermined time for calculating the change amount are changed according to the wind speed.
  • the threshold value of the change amount of the yaw error 18 used for determining the transition to the degenerate operation mode and the predetermined time for calculating the change amount are changed according to the wind speed.
  • FIG. 11 shows a block diagram of control in this embodiment.
  • the yaw error calculation unit 21 is used to calculate a yaw error 18 that is a deviation between the wind direction 17 flowing into the wind turbine generator 1 and the nacelle direction 16.
  • the yaw error 18 obtained here is stored in the yaw error storage unit 22.
  • the yaw error 18 stored in the yaw error storage unit 22 is sent to the change amount calculation unit 23, where the change amount of the yaw error 18 in a predetermined time is calculated.
  • the threshold value calculation unit 26 calculates the change amount threshold value of the yaw error 18 and the change amount calculation time from the wind speed obtained by the anemometer 13.
  • the mode determination unit 24 determines the operation mode of the wind turbine generator 1 based on the change amount of the yaw error 18 and the threshold value.
  • the determined operation mode is sent to the control determination unit 25 of various devices such as the pitch angle and the generator torque, and the control determination unit 25 determines the control method of each actuator.
  • the wind power generator 1 is controlled by sending the control method of the wind power generator 1 determined by the control determining unit 25 to each actuator controller 27.
  • FIG. 12 shows a control flow diagram of the wind turbine generator 1 in this embodiment.
  • the wind direction data and the wind speed data are acquired by the wind direction anemometer 13 in S101, and the yaw error 18 for the wind turbine generator 1 is calculated by the yaw error calculation unit 21 in S102.
  • the threshold value calculation unit 26 calculates the evaluation time of the amount of change and the threshold value from the obtained wind speed data.
  • the change amount calculation unit 23 calculates the change amount of the yaw error 18.
  • the mode determining unit 24 determines whether or not the amount of change in the yaw error 18 is equal to or greater than the threshold value. If it is equal to or less than the threshold value (No), the operation is continued as usual. If the mode determination unit 24 determines that the threshold value is equal to or greater than the threshold value in S134 (Yes), the wind turbine generator 1 proceeds to S105 and enters the degenerate operation mode.
  • the wind direction data and the wind speed data are again acquired by the wind direction anemometer 13 in S111, and the yaw error 18 for the wind turbine generator 1 is recalculated by the yaw error calculator 21 in S112.
  • the threshold value calculation unit 26 recalculates the evaluation time of the amount of change and the threshold value from the obtained wind speed data.
  • the change amount calculation unit 23 recalculates the change amount of the yaw error 18.
  • the mode determination unit 24 determines whether the amount of change in the yaw error 18 is equal to or greater than a threshold value.
  • a threshold value different from that in S134 may be used in order to determine whether the yaw error 18 tends to decrease.
  • the mode determination unit 24 determines the duration of the degenerate operation mode in S106.
  • the process returns to S111 again and the same flow as above is continued.
  • the process shifts to the stop mode in S115.
  • step S122 may be continuously used as these numerical values.
  • the advantages of the wind power generator 1 in the present embodiment are as follows.
  • the same effect as in the first embodiment can be obtained, and the determination threshold is determined based on the wind speed with respect to the transition to the degenerate operation mode, so the arrival of the gust is predicted with higher accuracy. be able to.
  • the determination threshold is determined based on the wind speed with respect to the transition to the degenerate operation mode, so the arrival of the gust is predicted with higher accuracy. be able to.
  • a control method for the wind turbine generator 1 in the fifth embodiment will be described with reference to FIGS. Detailed description of points that overlap with the first to fourth embodiments will be omitted.
  • a feature of the fifth embodiment is that pitch control is used as means for shifting to the degenerate operation mode.
  • the blade 5 is installed so as to be rotatable (pitch angle change) with respect to the hub 4.
  • the pitch angle represents an attachment angle of the blade 5 to the hub 4.
  • the pitch angle command value may be a fixed value or may be changed according to wind conditions such as wind speed.
  • the advantage of the control method of the wind power generator 1 in the present embodiment is as follows.
  • the pitch angle control is used for the transition to the degenerate operation mode, the energy amount that the wind power generator 1 recovers from the wind can be directly controlled, so the transition to the degenerate operation mode is easily performed. can do.
  • a control method for the wind turbine generator 1 in the sixth embodiment will be described with reference to FIGS. Detailed description of points that overlap with the first to fifth embodiments will be omitted.
  • a feature of the sixth embodiment resides in that torque control of the generator 9 installed in the nacelle 3 of the wind power generator 1 is utilized as means for shifting to the degenerate operation mode.
  • the energy recovered by the wind turbine generator 1 is expressed as the product of the rotational speed of the rotor 6 and the torque in the generator 9.
  • the rotational speed of the rotor 6 is the highest in the blade 5 of the wind power generator 1.
  • the torque is controlled so that the number of rotations can obtain energy efficiently.
  • the torque command value is set to a value different from that during normal operation. To do. At this time, the torque command value can be both a larger value and a smaller value than the reference control value during normal operation.
  • a method of reducing the amount of energy to be recovered by making the torque command value smaller than the reference control value during normal operation can be considered.
  • the torque control value is made larger than the reference control value during normal operation, the rotational speed of the rotor 6 is reduced, and the operation efficiency of the wind turbine generator 1 is reduced, so that the operation mode can be shifted to the degenerate operation mode.
  • the command value for torque control may be a fixed value or may be changed according to wind conditions such as wind speed.
  • the advantage of the control method of the wind power generator 1 in the present embodiment is as follows.
  • this embodiment has a feature that the control response is very fast because the torque control of the generator 9 is used for the transition to the degenerate operation mode. Thereby, it becomes possible to shift to the degenerate operation mode earlier, and it is possible to avoid an increase in the maximum load accompanying an increase in yaw error earlier.
  • this invention is not limited to the above-mentioned Example, Various modifications are included.
  • 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.
  • 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.

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  • Life Sciences & Earth Sciences (AREA)
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PCT/JP2019/002850 2018-03-06 2019-01-29 風力発電装置の制御方法 WO2019171829A1 (ja)

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WO2023010799A1 (zh) * 2021-08-03 2023-02-09 中国华能集团清洁能源技术研究院有限公司 一种节地降载的风力发电系统

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JP7236374B2 (ja) * 2019-12-05 2023-03-09 株式会社日立製作所 風力発電装置

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JP2016160878A (ja) * 2015-03-04 2016-09-05 三菱重工業株式会社 風力発電設備及び風力発電設備の制御方法
JP2017133441A (ja) * 2016-01-29 2017-08-03 三菱重工業株式会社 風力発電装置及びその運転方法

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JP2016160878A (ja) * 2015-03-04 2016-09-05 三菱重工業株式会社 風力発電設備及び風力発電設備の制御方法
JP2017133441A (ja) * 2016-01-29 2017-08-03 三菱重工業株式会社 風力発電装置及びその運転方法

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