Condition monitoring system and wind turbine including the same
AssigneeNtn Corporation
InventorsYosuke SUZUKI, Toru TAKAHASHI
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Abstract
A first vibration sensor measures vibration of a bearing. A second vibration sensor for measuring background noise received by the first vibration sensor is installed so as not to receive vibration of the bearing. A data acquisition device receives a first signal that is a measurement signal of the first vibration sensor and a second signal that is a measurement signal of the second vibration sensor and outputs a third signal obtained by subtracting the second signal from the first signal as data indicating vibration of the bearing.
Claims5
A condition monitoring system that monitors a state of a wind turbine, the condition monitoring system comprising:
- a first vibration sensor installed at a mechanical component in the wind turbine and configured to measure vibration of the mechanical component, the mechanical component being a source of noise;
- a second vibration sensor installed in the wind turbine so as not to receive vibration of the mechanical component and configured to measure noise received by the first vibration sensor;
- and
- a controller configured to include a first process of receiving first and second signals and outputting a third signal as data indicating vibration of the mechanical component, the first signal being a measurement signal of the first vibration sensor, the second signal being a measurement signal of the second vibration sensor, the third signal being obtained by subtracting the second signal from the first signal.
A wind turbine comprising the condition monitoring system of clai
Dependencies are inferred from the claim text.