WO2018105232A1 - Dispositif de commande d'éolienne - Google Patents

Dispositif de commande d'éolienne Download PDF

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Publication number
WO2018105232A1
WO2018105232A1 PCT/JP2017/036957 JP2017036957W WO2018105232A1 WO 2018105232 A1 WO2018105232 A1 WO 2018105232A1 JP 2017036957 W JP2017036957 W JP 2017036957W WO 2018105232 A1 WO2018105232 A1 WO 2018105232A1
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Prior art keywords
wind speed
control
rotation
wind
level
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PCT/JP2017/036957
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English (en)
Japanese (ja)
Inventor
房二 堀部
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株式会社Ｌｉｘｉｌ
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Publication of WO2018105232A1 publication Critical patent/WO2018105232A1/fr

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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
    • 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

  • Patent Document 1 discloses a technique aimed at preventing over-rotation of a wind turbine for wind power generation.
  • the torque command circuit disclosed in Patent Document 1 includes means for integrating the deviation between the actual rotational speed of the wind power generator and the rated rotational speed to output an overspeed integrated amount, and an overwind speed from the overspeed integrated amount.
  • This torque command circuit controls the torque of the generator by the torque command value at the time of rotational speed control when the overwind speed state signal is ON to prevent overspeed of the windmill.
  • control is performed so that a deceleration command is output when the integrated deviation value of the generator rotational speed and the rated rotational speed exceeds a certain value.
  • the rotational speed reduction amount at this time is determined based on a value obtained by dividing the deviation integrated value of the generator rotational speed and the rated rotational speed by the integrated time. That is, in this control, when the wind speed is high, the deviation integrated value exceeds a certain value in a short integrated time, and therefore the amount of deceleration becomes larger. Conversely, when the wind speed continues at a level slightly exceeding the rated wind speed, the amount of deceleration is small.
  • the control unit When the wind speed measured by the wind speed sensor is maintained at a wind speed level lower than the current level before the change for a certain period of time or longer during execution of the rotation suppression mode control, the control unit is more predetermined than the rotation speed level being controlled.
  • the descent countermeasure control for controlling the rotational speed of the wind turbine so as to target a large rotational speed level within the limit number of the above may be executed.
  • This windmill control device increases the rotational speed level within a predetermined limit number of steps on condition that the state in which the wind speed has decreased by one or more steps is stably maintained for a certain period of time or more. It is possible to increase the rotation level step by step with emphasis on prudentity while confirming a low state.
  • the rotation suppression mode control when executed, the rotation speed is reduced to the maximum rotation speed level, and the wind speed is less than a predetermined value and is not maintained for a predetermined time or more, so the control does not switch to the normal mode control. It is possible to switch to the normal mode only when the wind speed is stably low.
  • the windmill 100 shown in FIGS. 1 and 2 is configured as a vertical axis type windmill, for example, and a straight blade vertical axis windmill in which a plurality of straight blades are connected so as to be integrally rotatable around a rotating shaft extending in the vertical direction. It is constituted by.
  • the wind turbine 100 includes a plurality of wing portions 104 extending in a predetermined direction (vertical direction that is the axial direction of the rotation shaft portion 102), and a rotation shaft portion 102 configured in a rod shape and extending in a predetermined direction.
  • the wind turbine control device 2 includes a control unit 10, a rectification / boost unit 50, a rotation suppression unit 20, a second electric brake unit 30, a step-down unit 40, detection units 91 and 92, a rotation speed sensor 7, a wind speed. It is comprised by the sensor 9, each wiring part, etc., and functions as an apparatus which controls the rotation of the windmill 100 while controlling the output electric power from the generator 3.
  • FIG. 10 the control unit 10
  • a rectification / boost unit 50 the wind turbine control device 2
  • a rotation suppression unit 20 As shown in FIG. 1, the wind turbine control device 2 includes a control unit 10, a rectification / boost unit 50, a rotation suppression unit 20, a second electric brake unit 30, a step-down unit 40, detection units 91 and 92, a rotation speed sensor 7, a wind speed. It is comprised by the sensor 9, each wiring part, etc., and functions as an apparatus which controls the rotation of the windmill 100 while controlling the output electric power from the generator 3.
  • FIG. 10 the control unit 10
  • Rotation suppression unit 20 is a part that performs a suppression operation (deceleration operation that decelerates the rotation speed) that suppresses rotation of windmill 100 and cancels the suppression operation.
  • the rotation suppression unit 20 includes a first electric brake unit 21 and a mechanical brake unit 22.
  • the mechanical brake unit 22 corresponds to an example of a second brake unit, and is a device that can perform a braking operation on the windmill 100.
  • the mechanical brake unit 22 includes a brake operation unit 24 and a drive circuit 26.
  • the brake operation unit 24 is configured as, for example, a reverse-acting pneumatic brake, and a pair of contact members 24B that act on the operated portion 106 that is configured as a part of the windmill 100, and an actuator that drives the contact members 24B. (Actuator) 24A.
  • the actuated portion 106 is configured, for example, as a disk-shaped disk integrally assembled with the rotating shaft portion 102 of the windmill 100, and rotates integrally with the plurality of wing portions 104 provided in the windmill 100.
  • the first electric brake unit 21 corresponds to an example of the first brake unit, and is configured as a circuit that can perform electrical control on the generator 3.
  • the first electric brake unit 21 is a circuit that can perform a first brake operation that generates a force against the rotational force of the windmill 100 in the generator 3 and a release of the first brake operation.
  • 4 is configured as a circuit as shown in FIG.
  • the branch path 21 ⁇ / b> A is branched from the path that continues to the rectifier / boost unit 50 side.
  • 21B, 21C are provided.
  • resistance portions R1, R2, and R3 are interposed in the branch paths 21A, 21B, and 21C, respectively.
  • the branch paths 21A, 21B, and 21C are connected to each other by a connection path 21D.
  • branch paths 21A, 21B, and 21C when a current flows from one of the branch paths to the other branch path, a current flows through the resistor, and a voltage drop occurs in the resistor.
  • the branch paths 21B and 21C are provided with switches SW1 and SW2 for switching between an energizable state and an energized cut-off state, respectively, and the on / off state of the switches SW1 and SW2 is controlled by the control unit 10.
  • the control unit 10 performs control to turn on the switches SW1 and SW2 when performing a first brake operation described later, and performs control to turn off the switches SW1 and SW2 when not performing the first brake operation.
  • a resistor 34 and a switch element 32 are connected in series between the conductive path 71 and the conductive path 72, and a current flows through the resistor 34 in response to an ON operation of the switch element 32, thereby rectifying and boosting the unit. It functions to consume part of the power output from 50.
  • a PWM (Pulse Width Modulation) signal output from the drive unit 15 is input to the gate of the switch element 32, and the power consumption in the second electric brake unit 30 is controlled by the duty of the PWM signal.
  • the capacitor 55 is connected between the conductive path 71 and the conductive path 72.
  • the capacitor 55 has a function of smoothing the input current input to the step-down unit 40.
  • the step-down unit 40 is configured as a known step-down converter (converter), and includes a switch element 42 that turns on and off the conduction path 71, a diode 44, a coil 48, and a capacitor 46.
  • the switch element 42 is configured by a MOSFET or the like, for example, and is configured to be turned on / off according to the PWM signal from the drive unit 16.
  • the battery 60 is configured as, for example, a known secondary battery, and functions as a power source for driving various loads constituting the wind power generation system 1.
  • the wind power generation system 1 is provided with a power supply circuit that generates a plurality of power supply voltages based on the power from the battery 60.
  • the control unit 10 is generated by the power supply circuit.
  • a power supply voltage is applied.
  • a switch 61 is provided between the positive terminal of the battery 60 and the output-side conductive path 81, and on / off of the switch 61 is controlled by the control unit 10.
  • Rotational speed sensor 7 corresponds to an example of a detection unit that detects the rotational speed of windmill 100.
  • the rotational speed sensor 7 may be any sensor that can detect the rotational speed of the rotating shaft portion 102 of the windmill 100, and various known rotational speed sensors can be used.
  • the control unit 10 acquires the output value from the rotation speed sensor 7 and grasps the rotation speed of the windmill 100.
  • the wind speed sensor 9 is configured by a known wind speed sensor and functions to measure the wind speed in the vicinity of the wind turbine 100.
  • the wind speed sensor 9 is attached to a predetermined position (for example, a part other than the rotor blades) of the windmill 100, and outputs a value indicating the wind speed at the position where the wind speed sensor 9 is attached.
  • the control unit 10 acquires an output value (detected value) from the wind speed sensor 9 and grasps the wind speed near the windmill.
  • the control unit 10 includes, for example, a control circuit 12 composed of a microcomputer, a storage unit 18 composed of ROM, RAM, etc., and a plurality of drive units 14, 15, 16 that output control signals. .
  • various detection values are input to the control unit 10.
  • the detection unit 91 illustrated in FIG. 1 includes a current sensor and a voltage sensor, and an output current and an output voltage output from the rectification / boost unit 50 are detected by the detection unit 91 and input to the control unit 10.
  • the detection unit 92 includes a current sensor and a voltage sensor, and the output current and output voltage output from the step-down unit 40 are detected by the detection unit 92 and input to the control unit 10.
  • the output terminal 62 of the wind power generation system 1 can be connected to the input terminal 122 of the storage battery system 120, for example. That is, the electric power generated in the wind power generation system 1 can be supplied to the external storage battery system 120 via the output terminal 62.
  • FIGS. 1 and 2 an example in which the electric power generated in the wind power generation system 1 is supplied to the storage battery system 120 is shown. However, a configuration for grid connection is added and connected to a commercial power supply system. Also good.
  • the wind power generation system 1 configured as described above converts the electric power obtained by the power generation of the generator 3 and outputs it when the windmill 100 is rotated by receiving wind power and the control unit 10 is performing power generation control. To do. However, when the wind speed detected by the wind speed sensor 9 exceeds a predetermined threshold value, the rotation suppression mode control or the rotation stop control described later is performed, and the rotation of the windmill 100 is decelerated or stopped.
  • the control unit 10 controls the normal mode in which the rotation suppression unit 20 is in a predetermined operation release state with the flow illustrated in FIG. 5 and the rotation that rotates the windmill 100 while operating the rotation suppression unit 20.
  • the control of the suppression mode and the control of the stop mode for stopping the windmill 100 are performed.
  • the control unit 10 determines that the wind speed measured by the wind speed sensor 9 is The rotation suppression mode control is performed so that the associating control is performed to decrease the rotational speed of the windmill 100 as the wind speed increases when the wind speed increases.
  • the control unit 10 when the predetermined operation start condition is satisfied (for example, the rotational speed of the windmill 100 detected by the rotational speed sensor 7 is equal to or higher than the predetermined power generation start rotational speed, the control unit 10 performs a rotation suppression mode and a rotation stop described later.
  • the mode is not set, the wind turbine control shown in FIG. 5 is started.
  • the control unit 10 first starts the normal mode control at step S1. After starting the control in the normal mode, the control unit 10 detects in step S2 the condition that the wind speed measured by the wind speed sensor 9 is equal to or higher than the first wind speed threshold value (predetermined value) Vw1, or the rotational speed sensor 7.
  • step S2 it is determined whether or not a condition that the rotation speed is equal to or higher than the first rotation speed threshold value Vr1 is satisfied.
  • the wind speed measured by the wind speed sensor 9 is less than the first wind speed threshold value (predetermined value) Vw1, and the rotation speed detected by the rotation speed sensor 7 is less than the first rotation speed threshold value Vr1.
  • the determination of No in step S2 is repeated, and during this period, the power generation control in the normal mode is continued.
  • control unit 10 When performing power generation control in the normal mode, the control unit 10 outputs a control signal to each of the switch elements Sa1, Sb1, Sa2, Sb2, Sa3, Sb3, and operates the rectification / boost unit 50 as a three-phase boost chopper circuit. .
  • the rotation speed (number of rotations) and the output target value (generator regeneration output) are associated in advance, and the correspondence data in which the rotation speed and the output target value are associated in this way is stored in the storage unit 18. Is remembered. Since such correspondence data exists, if the rotational speed is determined by the rotational speed sensor 7, the output target value (generator regenerative output) associated with the rotational speed (number of revolutions) is determined with reference to the correspondence data. be able to.
  • Each output target value corresponding to each rotation speed is the maximum power value at each rotation speed, and is set to be proportional to the cube of the rotation speed (the number of rotations).
  • the control unit 10 determines the rotational speed (number of rotations) of the windmill 100 detected by the rotational speed sensor 7 and the rotational speed stored in the storage unit 18.
  • Output target value maximum power value corresponding to each rotation speed
  • the output power from the rectifying / boosting unit 50 is an output target value (maximum power value) corresponding to the rotation speed (rotation speed) of the windmill 100.
  • MPPT Maximum Power Point Tracking
  • the control of FIG. 5 is temporarily performed.
  • the operation may be stopped until the operation start condition is satisfied.
  • the control shown in FIG. 5 may be executed again when the operation start condition is satisfied.
  • the control unit 10 repeats the determination in step S2 during the execution of the normal mode, and when the wind speed measured by the wind speed sensor 9 becomes equal to or higher than the first wind speed threshold value (predetermined value) Vw1, or detected by the rotational speed sensor 7.
  • the control is switched to the rotation suppression mode control in step S3.
  • the control unit 10 performs control according to the table data (table data) as shown in FIG. 6 when the control is switched to the rotation suppression mode control from step S2 to step S3.
  • the table data of FIG. 6 defines a plurality of stages of wind speed levels and a plurality of stages of rotation speed levels in a wind speed range that is greater than or equal to the first wind speed threshold Vw1 (predetermined value) and less than the second wind speed threshold Vw2, and rotates as the wind speed level increases. This is correspondence data in which the wind speed level and the rotation speed level are associated with each other so that the speed level becomes small.
  • This table data (corresponding data) is stored in the storage unit 18. In the table data of FIG. 6, the larger the table number, the smaller the associated wind speed level (wind speed range) and the greater the associated rotational speed level.
  • the first wind speed threshold value Vw1 is 11 (m / s), and the second wind speed threshold value Vw2 is 22 (m / s).
  • table number 6 is associated with a wind speed level of 11 (m / s) or more and less than 12 (m / s) and a rotational speed level of 180 (min ⁇ 1)
  • table number 5 is 12 (m / s).
  • / S) is associated with a wind speed level of 13 (m / s) or more and a rotational speed level of 170 (min-1)
  • the table number 4 is 13 (m / s) or more and less than 14 (m / s). Is associated with a rotational speed level of 160 (min-1), and Table No.
  • Table number 3 has a wind speed level of 14 (m / s) to less than 16 (m / s) and 150 (min-1). Rotational speed levels are associated with each other.
  • Table number 2 is associated with a wind speed level of 16 (m / s) or more and less than 18 (m / s) and a rotational speed level of 140 (min ⁇ 1). 18 (m / s) or more A wind speed level of less than 0 (m / s) and a rotational speed level of 120 (min-1) are associated with each other.
  • Table number 0 includes a wind speed level of 20 (m / s) or more and less than 22 (m / s) and A rotational speed level of 100 (min-1) is associated.
  • step S5 when the wind speed becomes equal to or higher than the second wind speed threshold value Vw2 when the rotation suppression mode control is being performed (Yes in step S4), the process proceeds to step S6 to switch to the stop mode control. Further, when a predetermined return condition is satisfied when the rotation suppression mode control is performed (Yes in step S5), the process proceeds to step S1 to switch to the normal mode control.
  • the control unit 10 uses the table data shown in FIG. 6 to set the wind speed level measured by the wind speed sensor 9 in the corresponding data when the wind speed measured by the wind speed sensor 9 rises.
  • the wind speed measured by the wind speed sensor 9 is executed by performing ascending correspondence control for controlling the rotational speed of the windmill 100 so as to target the associated rotational speed level or a level shifted from the associated rotational speed level by a predetermined step.
  • the descent response control is executed so that the rotation speed of the wind turbine 100 is increased by the number of steps within a predetermined limit number based on the plurality of rotation speed levels in the response data.
  • the predetermined limit number is “2”
  • step S2 to step S3 that is, immediately after the wind speed is equal to or higher than the first wind speed threshold (predetermined value) Vw1 or the rotational speed of the windmill 100 is equal to or higher than the first rotational speed threshold Vr1).
  • the highest table number with the highest number is selected.
  • the control unit 10 monitors the wind speed measured by the wind speed sensor 9 and the rotational speed detected by the rotational speed sensor 7, and a new wind speed in which the wind speed measured by the wind speed sensor 9 is higher than the current level before the change.
  • the rotational speed of the windmill is controlled so as to target a level shifted from the rotational speed level associated with the new wind speed level by the corresponding data by a predetermined step.
  • step S2 to step S3 For example, if the wind speed immediately after the transition from step S2 to step S3 is 11 (m / s), that is, the current speed before the change corresponds to the table number 6 (current table number) (11 (m / S) to 12 (m / s)), the wind speed then becomes 14 (m / s), so that a new wind speed level higher than the current level before the change (corresponding to table number 3).
  • Table number 3 (corresponding to the new wind speed level (14 (m / s) to 16 (m / s)) when the wind speed level (14 (m / s) to 16 (m / s)) is changed.
  • the rotational speed of the wind turbine is set so as to target the rotational speed level (140 min-1) shifted by one step from the rotational speed level (150 min-1) associated with the correspondence data shown in FIG. Control That.
  • the example shown here is merely an example, and when the wind speed level to be measured is switched to be increased by one level or more during execution of the rotation suppression mode, it is associated with the wind speed level after switching.
  • the rotational speed is controlled by one step lower than the rotational speed.
  • the control unit 10 maintains the wind speed measured by the wind speed sensor 9 below a wind speed level lower than the current level before the change for a certain time (for example, 5 seconds) or more.
  • the descent response control for controlling the rotational speed of the windmill so as to target a rotational speed level that is larger than the rotational speed level being controlled within a predetermined limit number of steps is executed.
  • the predetermined number of limit steps is “2”, and even if the state in which the wind speed is greatly reduced is maintained, the level of the rotation speed is not switched more than two steps at a time.
  • the wind speed at a certain time is 16 m / s
  • the current level before the change is the wind speed level (16 (m / s) to 18 (m / s)) corresponding to table number 2 (current table number).
  • the wind speed is 12 (m / s) thereafter.
  • the wind speed level changes to a new wind speed level (wind speed level (12 (m / s) to 13 (m / s)) corresponding to the table number 5) that is smaller than the current level before the change.
  • the rotational speed of the wind turbine is controlled so as to target (150 min-1), that is, the target rotational speed is changed from the rotational speed level before the change (120 min-1) to only “2 stages” which is the limit number of stages.
  • the wind turbine 100 is controlled at this new rotational speed by switching to the increased (150 min-1).
  • control unit 10 performs the most in a plurality of wind speed levels (FIG. 6) in a wind speed range of a predetermined value (11 (m / s) which is the first wind speed threshold Vw1) or more during execution of the rotation suppression mode control.
  • the maximum rotational speed level (that is, the figure) corresponding to the small wind speed level (that is, the wind speed level 11 to 12 (m / s) corresponding to the highest table number 6) in the corresponding data (FIG. 6).
  • the wind speed measured by the wind speed sensor 9 is 11 (m / s) which is the predetermined value (the first wind speed threshold Vw1).
  • step S5 in FIG. 5 is Yes, and control in the normal mode is executed in step S1.
  • step S6 stop mode control is executed.
  • the control in the stop mode for example, the rotation of the windmill 100 is stopped by operating the first electric brake unit 21 and the mechanical brake unit 22 described above until the rotational speed of the windmill 100 becomes zero. And the windmill 100 is maintained in a rotation stop state until a predetermined release condition is satisfied.
  • the release condition can be set in various ways, for example, “the wind speed measured by the wind speed sensor 9 is maintained below a predetermined release determination threshold value for a predetermined time or more”.
  • the predetermined release determination threshold may be the second wind speed threshold Vw2, or may be a value smaller than the second wind speed threshold Vw2.
  • the control unit 10 increases the wind speed measured by at least the wind speed sensor 9 when the wind speed measured by the wind speed sensor 9 is equal to or higher than the predetermined value Vw1 during the normal mode control.
  • the rotation suppression mode is controlled so as to execute the ascending response control in which the rotation speed of the windmill 100 is decreased as the wind speed increases.
  • the rotation suppression mode is controlled when the wind speed measured by the wind speed sensor 9 is equal to or higher than the predetermined value Vw1
  • the rotational speed is greatly increased. It becomes easy to perform rotation suppression operation quickly before.
  • the associative control is executed so as to decrease the rotation speed of the windmill 100 as the wind speed increases, so that the more the wind speed situation where the possibility of over-rotation increases, the more the situation is reflected.
  • the degree of rotation suppression can be strengthened.
  • the wind turbine control device 2 determines a plurality of stages of wind speed levels and a plurality of stages of rotation speed levels in a wind speed range of at least a predetermined value Vw1 or more, and increases the wind speed level and rotation speed level so that the rotation speed level decreases as the wind speed level increases.
  • a storage unit 18 that stores correspondence data that associates.
  • Ascending response control for controlling the rotational speed of the wind turbine 100 so as to target a level shifted by a step is executed, and when the wind speed measured by the wind speed sensor 9 decreases, a plurality of stages in the corresponding data
  • the descent response control is executed so that the rotational speed of the wind turbine 100 is increased by the number of steps within a predetermined limit number based on the rotational speed level.
  • the windmill control device 2 changes a level shifted by a predetermined step from the rotation speed level associated with the wind speed level measured by the wind speed sensor 9 in the corresponding data when the wind speed increases. Since the associative control for controlling the rotational speed of the windmill 100 so as to be a target is executed, it is possible to immediately switch to the rotational speed corresponding to the wind speed when the wind speed increases. Therefore, it becomes easy to prevent the occurrence of over-rotation due to a sudden rise in the wind speed.
  • the descent response control is executed so that the rotation speed of the windmill 100 is increased by the number of stages within a predetermined limit number based on the rotation speed levels in a plurality of stages in the correspondence data.
  • the rotation speed can be returned little by little under the circumstances. For example, even if a situation occurs in which the wind speed suddenly drops and then rises rapidly, the rotational speed does not increase so much when the wind speed suddenly drops. Become.
  • the control unit 10 uses the corresponding data for the new wind speed level.
  • the rotational speed of the wind turbine is controlled so as to target a level shifted from the associated rotational speed level by a predetermined step.
  • the wind turbine control device 2 When the wind speed level measured by the wind speed sensor 9 is increased by one or more levels during execution of the rotation suppression mode control, the wind turbine control device 2 reduces the rotational speed of the wind turbine 100 according to the increased wind speed level. It is possible to quickly switch to the rotational speed level.
  • the control unit 10 determines from the rotation speed level being controlled. Also, the descent response control is executed to control the rotational speed of the windmill so as to target a large rotational speed level within a predetermined limit number of steps.
  • the wind turbine control device 2 increases the rotational speed level within a predetermined number of limit steps on the condition that the state in which the wind speed has decreased by one or more steps is stably maintained for a certain time or more, the wind speed can increase rapidly. It is possible to increase the rotation level step by step with emphasis on prudence while reliably confirming a low-priced state.
  • the control unit 10 targets the highest rotational speed level associated with the lowest wind speed level in the plurality of stages in the wind speed range equal to or greater than a predetermined value in the correspondence data.
  • the rotational speed of the windmill 100 When the rotational speed of the windmill 100 is controlled as described above, it functions to switch to normal mode control on condition that the wind speed measured by the wind speed sensor 9 is less than a predetermined value and maintained for a predetermined time or more.
  • the windmill control device 2 When the rotation suppression mode control is executed, the windmill control device 2 is not switched to the normal mode control unless the rotation speed is lowered to the maximum rotation speed level and the wind speed is maintained below a predetermined value for a predetermined time or more. Therefore, it is possible to switch to the normal mode only when the wind speed is stably low.
  • a mechanical brake as disclosed in JP 2011-256723 A may be used.
  • cooperating with this is not limited to the position of the to-be-acted part 106 of Example 1.
  • a contact member (a member driven by an actuator) of the mechanical brake unit 22 is an interlocking member that interlocks with the windmill 100 (for example, a member that interlocks with the windmill 100 by gear transmission or the like).
  • the second brake operation may be performed so as to generate a braking force while bringing the contact member into contact with the (acting portion).
  • an example of the first electric brake unit 21 (first brake unit) is shown in FIG.
  • the first brake unit generates a braking force in the rotation of the generator by electrical control.
  • Various known electric brakes can be used as long as they can be configured.
  • resistance part R1, R2, R3 was used, you may make it short-circuit by omitting these.
  • the lower level (rotation speed) shifted by one step from the rotation speed associated with the increased wind speed is targeted.
  • the target rotational speed is switched, the present invention is not limited to this example.
  • the target rotational speed is shifted to a lower level (rotational speed) shifted by two stages from the rotational speed associated with the increased wind speed.
  • the “predetermined limit number” and the “limit stage number” are set to 2, and when the wind speed is lowered and stabilized, the rotational speed level is decreased stepwise within two stages. You may make it fall one step at a time.
  • table data as conceptually illustrated in FIG. 6 is illustrated as an example of the correspondence data, but FIG. 6 is merely an example of the correspondence data.
  • the table configuration is not limited to the table configuration as shown in FIG. 6, and may be a table configuration in which the wind speed range is divided more finely and the rotation speed is associated with each wind speed range. May be roughly divided.
  • the rotational speed corresponding to the wind speed level is determined by an arithmetic expression that associates the wind speed level and the rotational speed level so that the rotational speed level decreases as the wind speed level increases. You may make it do.

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  • Wind Motors (AREA)

Abstract

L'invention concerne un dispositif de commande d'éolienne pour générer de l'énergie éolienne. Ce dispositif de commande peut permettre d'effectuer une commande de suppression de rotation répondant à la vitesse du vent, réagissant rapidement à des augmentations de la vitesse du vent même lorsque celle-ci s'élève rapidement. Ce dispositif de commande d'éolienne (2) est pourvu d'une unité de suppression de rotation (20) qui supprime la rotation de l'éolienne (100), d'un capteur de vitesse de rotation (7) (une unité de détection) qui détecte la vitesse de rotation de l'éolienne (100), et d'une unité de commande (10) qui effectue au moins une commande de mode normal, dans laquelle l'unité de suppression de rotation (20) est réglée à un état d'annulation de fonctionnement prescrit, et une commande de mode de suppression de rotation, dans laquelle l'éolienne (100) est autorisée à tourner tandis que l'unité de suppression de rotation (20) est actionnée. Si la vitesse du vent mesurée par un capteur de vitesse du vent (9) lors de la réalisation d'une commande de mode normal est supérieure ou égale à une valeur prescrite, alors, au moins pendant une augmentation de la vitesse du vent dans laquelle la vitesse du vent mesurée par le capteur de vitesse du vent (9) augmente, l'unité de commande (10) effectue une commande de mode de suppression de rotation pour effectuer une commande de réponse d'augmentation de vitesse du vent dans laquelle plus la vitesse du vent est grande, plus la vitesse de rotation de l'éolienne est réduite.
PCT/JP2017/036957 2016-12-09 2017-10-12 Dispositif de commande d'éolienne WO2018105232A1 (fr)

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JP2016-239581 2016-12-09
JP2016239581A JP6990022B2 (ja) 2016-12-09 2016-12-09 風車制御装置

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WO2018105232A1 true WO2018105232A1 (fr) 2018-06-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114382644A (zh) * 2021-12-01 2022-04-22 重庆海装风电工程技术有限公司 一种风力发电机组刹车自检方法、系统和存储介质

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004301116A (ja) * 2003-03-19 2004-10-28 Mitsubishi Electric Corp 風力発電システム
JP2014202190A (ja) * 2013-04-09 2014-10-27 株式会社リアムコンパクト 制御装置、制御方法及びプログラム

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Publication number Priority date Publication date Assignee Title
KR101163305B1 (ko) 2010-01-15 2012-07-05 미츠비시 쥬고교 가부시키가이샤 풍력 발전 장치 및 그 기동 방법

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004301116A (ja) * 2003-03-19 2004-10-28 Mitsubishi Electric Corp 風力発電システム
JP2014202190A (ja) * 2013-04-09 2014-10-27 株式会社リアムコンパクト 制御装置、制御方法及びプログラム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114382644A (zh) * 2021-12-01 2022-04-22 重庆海装风电工程技术有限公司 一种风力发电机组刹车自检方法、系统和存储介质

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JP6990022B2 (ja) 2022-01-12

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