Search

CN-115681005-B - Information generating device, information generating method, and computer-readable storage medium

CN115681005BCN 115681005 BCN115681005 BCN 115681005BCN-115681005-B

Abstract

The invention provides an information generating apparatus, an information generating method, and a computer-readable storage medium. The information generating device includes a control unit that rotationally drives a pinion gear engaged with a ring gear by a motor in a state where rotation of a rotor of a windmill is braked by a predetermined braking force, a strain amount acquisition unit that acquires a strain amount generated by the fastening unit, and an information generating unit that generates correlation information indicating a correspondence between a driving torque of the motor and a strain amount when the motor is rotationally driven by the driving torque.

Inventors

  • OSAKO HARUNA

Assignees

  • 纳博特斯克有限公司

Dates

Publication Date
20260508
Application Date
20220719
Priority Date
20210721

Claims (14)

  1. 1. An information generating device is provided with: a control unit that rotationally drives a pinion gear engaged with a ring gear by a motor in a state in which rotation of a rotor of a windmill is braked by a predetermined braking force, thereby generating strain in a fastening unit for fastening the motor to a fastened unit; A strain amount acquisition unit for acquiring the strain amount generated by the fastening unit, and An information generation unit that generates correlation information indicating a correspondence between the driving torque of the motor and the strain amount when the motor is rotationally driven by the driving torque.
  2. 2. The information generating apparatus according to claim 1, wherein, The control unit controls a braking unit for braking relative rotation between the ring gear and the pinion gear to brake the turning unit.
  3. 3. The information generating apparatus according to claim 1 or 2, wherein, The motor includes a shaft braking portion for braking a rotation shaft of the motor, The control unit controls the shaft braking unit to brake the turning unit.
  4. 4. The information generating apparatus according to claim 1 or 2, wherein, The upper limit of the predetermined braking force is a value smaller than an allowable torque of the weakest rigidity among the rigidity of the pinion, the rigidity of the turning portion, and the rigidity of the motor speed reduction portion.
  5. 5. An information generating device is provided with: A control unit that rotationally drives a pinion gear engaged with a ring gear by a second motor in a state in which rotation of a rotor of a windmill is braked by a braking force of a first motor, thereby generating strain in a fastening unit for fastening the first motor to a fastened unit; A strain amount acquisition unit for acquiring the strain amount generated by the fastening unit, and An information generation unit that generates information indicating a correspondence between a predetermined driving torque and the strain amount when the second motor is rotationally driven by the predetermined driving torque.
  6. 6. The information generating apparatus according to claim 5, wherein, The upper limit of the predetermined driving torque is a value smaller than an allowable torque of the weakest rigidity among the rigidity of the pinion, the rigidity of the rotor, and the rigidity of the speed reduction portion of the second motor.
  7. 7. An information generating method, comprising the steps of: In a state where rotation of a rotor of a windmill is braked by a predetermined braking force, a pinion gear engaged with a ring gear is rotationally driven by a motor, whereby a fastening portion for fixing the motor to a fixed portion is strained; acquiring the strain amount generated by the fastening part, and And generating correlation information indicating a correspondence between the driving torque of the motor and the strain amount when the motor is rotationally driven by the driving torque.
  8. 8. The information generating method according to claim 7, wherein, The upper limit of the predetermined braking force is a value smaller than an allowable torque of the weakest rigidity among the rigidity of the pinion, the rigidity of the turning portion, and the rigidity of the motor speed reduction portion.
  9. 9. An information generating method, comprising the steps of: In a state in which rotation of a rotor of a windmill is braked by a braking force of a first motor, a pinion gear engaged with a ring gear is rotationally driven by a second motor, whereby a fastening portion for fixing the first motor to a fixed portion is strained; acquiring the strain amount generated by the fastening part, and Generating correlation information indicating a correspondence between a predetermined driving torque and the strain amount when the second motor is rotationally driven by the predetermined driving torque.
  10. 10. The information generating method according to claim 9, wherein, The upper limit of the predetermined driving torque is a value smaller than an allowable torque of the weakest rigidity among the rigidity of the pinion, the rigidity of the rotor, and the rigidity of the speed reduction portion of the second motor.
  11. 11. A computer-readable storage medium for causing a computer to perform the following process: In a state where rotation of a rotor of a windmill is braked by a predetermined braking force, a pinion gear engaged with a ring gear is rotationally driven by a motor, whereby a fastening portion for fixing the motor to a fixed portion is strained; acquiring the strain amount generated by the fastening part, and And generating correlation information indicating a correspondence between the driving torque of the motor and the strain amount when the motor is rotationally driven by the driving torque.
  12. 12. The computer-readable storage medium of claim 11, wherein, The upper limit of the predetermined braking force is a value smaller than an allowable torque of the weakest rigidity among the rigidity of the pinion, the rigidity of the turning portion, and the rigidity of the motor speed reduction portion.
  13. 13. A computer-readable storage medium for causing a computer to perform the following process: In a state in which rotation of a rotor of a windmill is braked by a braking force of a first motor, a pinion gear engaged with a ring gear is rotationally driven by a second motor, whereby a fastening portion for fixing the first motor to a fixed portion is strained; acquiring the strain amount generated by the fastening part, and Generating correlation information indicating a correspondence between a predetermined driving torque and the strain amount when the second motor is rotationally driven by the predetermined driving torque.
  14. 14. The computer-readable storage medium of claim 13, wherein, The upper limit of the predetermined driving torque is a value smaller than an allowable torque of the weakest rigidity among the rigidity of the pinion, the rigidity of the rotor, and the rigidity of the speed reduction portion of the second motor.

Description

Information generating device, information generating method, and computer-readable storage medium Technical Field The present invention relates to an information generating apparatus, an information generating method, and a computer-readable storage medium. Background The wind power generation device is provided with a nacelle. The nacelle is rotated in a yaw direction with respect to a tower of the wind turbine using drive torque of one or more yaw drives. In wind power generation devices, it is required to avoid overload of yaw drive devices. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2015-140777 Disclosure of Invention Problems to be solved by the invention In order to avoid overload of the yaw drive apparatus, it is necessary to determine the load applied to the yaw drive apparatus. For example, as a method of determining a load applied to the yaw drive apparatus, there is a method of using strain generated by a fixing tool (fastening bolt) for fixing the yaw drive apparatus to the nacelle as an index of the load applied to the yaw drive apparatus. In this case, the strain amount generated by the stationary tool varies when an arbitrary driving torque is generated due to individual differences of the yaw drive apparatus itself or the like. The initial strain amount varies, and the correspondence between the driving torque of the yaw drive device and the strain amount generated by the fixture also varies during operation of the wind turbine generator. In a state where such a deviation remains, it is not possible to accurately determine the load applied to the yaw drive apparatus based on the drive torque of the yaw drive apparatus. In order to grasp such a deviation of the initial strain amount, calibration is required. The calibration uses information indicating a correspondence relationship between the amount of strain generated by the fixture and the driving torque of the yaw driving device. However, the wind power generation device (windmill) is driven and controlled only by the driving and braking of the yaw driving device. Therefore, when one yaw drive device is simply driven with the brake applied to the ring gear, an excessive load is applied to the one yaw drive device. As a result, the swing power transmission portion of the yaw drive apparatus may be damaged. Accordingly, a method is adopted in which a worker who is going to the inside of the nacelle manually rotates the yaw drive devices to measure the strain amount, and related information indicating the correspondence between the drive torque of each yaw drive device and the strain amount generated by the fixture is acquired. However, this method places a large burden on the staff. Thus, a method of remotely acquiring the related information is sought instead of the method. The present invention aims to provide an information generating device, an information generating method and a computer-readable storage medium capable of remotely generating related information representing a correspondence relationship between a strain amount generated by a fixture for fixing a yaw drive device to a nacelle and a drive torque of the yaw drive device. Solution for solving the problem (1) An aspect of the present invention is an information generating device including a control unit that rotationally drives a pinion gear engaged with a ring gear by a motor in a state where rotation of a rotor of a windmill is braked by a predetermined braking force, thereby generating a strain in a fastening portion for fastening the motor to a fastened portion, a strain amount acquisition unit that acquires a strain amount generated in the fastening portion, and an information generating unit that generates correlation information indicating a correspondence between a driving torque of the motor and the strain amount when the motor is rotationally driven by the driving torque. The information generating device described above can remotely generate related information indicating a correspondence relationship between the amount of strain generated by a fixture for fixing the yaw drive device to the nacelle (the fixed portion) and the driving torque of the yaw drive device. (2) The control unit may control a braking unit for braking the relative rotation of the ring gear and the pinion gear to brake the turning unit. (3) The motor may further include a shaft braking unit for braking the rotation shaft of the motor. The control unit may control the shaft braking unit to brake the turning unit. (4) The upper limit of the predetermined braking force may be a value smaller than an allowable torque of the weakest rigidity among the rigidity of the pinion, the rigidity of the turning portion, and the rigidity of the motor speed reduction portion. (5) An information generating device includes a control unit that rotationally drives a pinion gear engaged with a ring gear by a second motor in a state in which rotation of a ro