Safety system for offshore wind turbine supported by a floating foundation
AssigneeSiemens Gamesa Renewable Energy A/S
InventorSoeren Adrian Schmidt
Life of this patent
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Abstract
A safety system for an offshore wind turbine supported by a floating foundation provided. The floating foundation being secured to a plurality of anchors at a seabed by a corresponding plurality of mooring lines. The safety system includes a safety controller and at least one conductive wire per mooring line, each conductive wire being configured to extend from the safety controller along a mooring line to the corresponding anchor at the seabed and back to the safety controller. The safety controller is configured to determine whether each of the conductive wires is intact or broken.
Claims19
A safety system for an offshore wind turbine supported by a floating foundation, the safety system comprising:
- a plurality of mooring lines configured for securing the floating foundation to a plurality of anchors at a seabed;
- and
- a safety controller,
- wherein each of the plurality of mooring lines is equipped with at least a first conductive wire and a second conductive wire, the first conductive wire and the second conductive wire being configured to extend from the safety controller along a respective mooring line to a corresponding anchor at the seabed and back to the safety controller,
- wherein the safety controller is configured to:
- feed a first predetermined signal into the first conductive wire and feed a second predetermined signal into the second conductive wire, wherein the first predetermined signal and the second predetermined signal are different from each other with respect to a respective frequency, phase, and/or duty cycle,
- individually monitor the first conductive wire and the second conductive wire,
- determine whether the first signal and the second signal have been mixed, and/or to determine whether each of the conductive wires is intact or broken, and
- issue an alarm signal, if it is determined that the first conductive wire and the second conductive wire are broken, wherein the alarm signal is a shutdown signal.
Dependencies are inferred from the claim text.