Obstacle warning system
AssigneeVestas Wind Systems A/S
InventorsDaniel Filipe Simoes Malafaia, Pedro Filipe Viseu Dos Santos, Pedro Miguel Leao Guedes
Life of this patent
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Abstract
A method of operating an obstacle warning system (4) for a wind turbine installation (2) comprises: operating a radar system (14) to obtain scan data for an area around the installation (2); analysing the scan data to identify a pair of signals comprising a first signal corresponding to a first location (34) and a second signal corresponding to a second location (32), the first location (34) being spaced from the second location (32); comparing the first signal and the second signal to determine a value indicative of the performance of the radar system (14) for an area including the second location (32); and activating the warning system (4) if the value is below a threshold.
Claims21
A method of operating an obstacle warning system for a wind turbine installation, the method comprising:
- operating a radar system to obtain scan data for an area around the installation;
- analysing the scan data to identify a pair of signals comprising a first signal corresponding to a first location and a second signal corresponding to a second location, the first location being spaced from the second location;
- comparing the first signal and the second signal to determine a value indicative of the performance of the radar system for an area including the second location;
- and
- activating the warning system if the value is below a threshold.
A method of calibrating an obstacle warning system for a wind turbine installation, the method comprising:
- operating a radar system to obtain calibration scan data for an area around the installation;
- and
- analysing the calibration scan data to identify a pair of signals comprising a first signal corresponding to a first location and a second signal corresponding to a second location, the first location being spaced from, but in close proximity to, the second location, wherein the second signal has a higher power than the first signal.
An obstacle warning system for a wind turbine installation, the system comprising:
- a radar system configured to obtain scan data for an area around the installation;
- a warning device;
- and
- a control system configured to:
- analyse the scan data to identify a pair of signals comprising a first signal corresponding to a first location and a second signal corresponding to a second location, the first location being spaced from the second location;
- compare the first signal and the second signal to determine a value indicative of the performance of the radar system for an area including the second location;
- and
- activate the warning device if the value is below a threshold.
Dependencies are inferred from the claim text.