Activating and deactivating a safe mode of operation of a wind turbine
AssigneeSiemens Gamesa Renewable Energy A/S
InventorsMartin Folmer Andersen, Samuel Hawkins, Ryan A. Sievers
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Abstract
A method of activating and/or deactivating a safe mode of operation of a wind turbine is provided, the method including: receiving at least one measurement signal related to a weather condition; filtering of a measuring signal dependent quantity to obtain a filtered signal, wherein the filtered signal depends on whether the measuring signal dependent quantity and/or filtered signal is increasing or decreasing with time; activating and/or deactivating the safe mode of operation based on the filtered signal.
Claims15
A method of activating and/or deactivating a safe mode of operation of a wind turbine, the method comprising:
- receiving at least one measurement signal related to a weather condition;
- filtering of a measuring signal dependent quantity to obtain a filtered signal, wherein the filtered signal depends on whether the measuring signal dependent quantity and/or the filtered signal is increasing or decreasing with time;
- and
- activating and/or deactivating the safe mode of operation based on the filtered signal, wherein activating and/or deactivating the safe mode of operation comprises supplying a control signal to at least one actuator for establishing the safe mode of operation;
- wherein the safe mode of operation comprises shutting down the wind turbine;
- wherein filtering includes employing a filter parameter, the filter parameter comprising a filter time constant being different for an increasing or decreasing measurement dependent quantity and/or filtered signal.
An arrangement for activating and/or deactivating a safe mode of operation of a wind turbine, the arrangement comprising:
- an input module configured to receive at least one measurement signal related to a weather condition;
- a processor configured to:
- filter a measuring signal dependent quantity to obtain a filtered signal, wherein the filtered signal depends on whether the measuring signal dependent quantity and/or filtered signal is increasing or decreasing with time;
- derive at least one control signal for activating and/or deactivating the safe mode of operation based on the filtered signal,
- wherein the arrangement is configured, for activating and/or deactivating the safe mode of operation, to supply the control signal to at least one actuator for establishing the safe mode of operation,
- wherein the safe mode of operation comprises shutting down the wind turbine,
- wherein the processor is configured to filter the measuring signal dependent quantity employing a filter parameter, the filter parameter comprising a filter time constant being different for increasing or decreasing measurement signal dependent quantity and/or filtered signal.
Dependencies are inferred from the claim text.