Method and Control Device for Measuring a Load on a Rotor Blade of a Wind Power Plant
AssigneeRobert Bosch GmbH
InventorsBoris Buchtala, Felix Hess
Life of this patent
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Abstract
A method for measuring a load on a rotor blade of a wind power plant includes deriving a deflection of the rotor blade from an acceleration value, determining a signal drift component of the deflection by using an absolute value, and determining the load by using the signal drift component and the deflection and material characteristics of the rotor blade. The acceleration value represents an acceleration on the rotor blade, and the absolute value represents an absolute measured value from an absolute sensor on the rotor blade.
Claims10
A method for capturing a load on a rotor blade of a wind energy converter, comprising:
- deriving a deflection of a rotor blade from an acceleration value indicative of an acceleration on the rotor blade;
- determining a signal-drift component of the deflection using an absolute value indicative of an absolute measurement value of an absolute sensor on the rotor blade;
- and
- calculating a load on the rotor blade using the signal-drift component and the deflection, and material characteristic values of the rotor blade.
A control device for capturing a load on a rotor blade of a wind energy converter, the control device configured to:
- derive a deflection of a rotor blade from an acceleration value indicative of an acceleration of the rotor blade;
- determine a signal-drift component of the deflection using an absolute value indicative of an absolute measurement value of an absolute sensor on the rotor blade;
- and
- calculate a load on the rotor blade using the signal-drift component, the deflection, and material characteristic values of the rotor blade.
A computer program, that, when executed by a processor of a computing device, causes the computing device to to perform the following acts:
- deriving a deflection of a rotor blade from an acceleration value indicative of an acceleration of the rotor blade;
- determining a signal-drift component of the deflection using an absolute value indicative of an absolute measurement value of an absolute sensor on the rotor blade;
- and
- calculating a load on the rotor blade using the signal-drift component, the deflection, and material characteristic values of the rotor blade.
Dependencies are inferred from the claim text.