Patent ID: 11905930
Assignee: NABTESCO CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 7:
8. A condition monitoring method for a drive device of a wind turbine, the condition monitoring method comprising steps of:
obtaining information relating to a load applied to each of a plurality of actuators, the plurality of actuators being included in the drive device of the wind turbine and configured to cooperate with each other;
based on the information obtained in the obtaining step, calculating a partial load ratio, the partial load ratio representing a ratio of a load on each of the plurality of actuators to a total load, the total load being a sum of the loads on the plurality of actuators; and
diagnosing a condition of each of the plurality of actuators based on the total load and the partial load ratio calculated in the calculating step; and
based on a diagnosis made in the diagnosing step, controlling the drive device of the wind turbine.