Abstract: A jointed wind turbine rotor blade includes a first blade segment and a second blade segment. A chord-wise joint separates the first and second blade segments, wherein internal joint structure joins the first and second blade segments across the chord-wise joint. A first heating system is configured within the first blade segment, and a second heating system is configured within the second blade segment. A disconnectable coupling is configured between the first and second blade segments at the chord-wise joint to supply power or a fluid medium from the first blade segment across the chord-wise joint for use by the second heating system in the second blade segment.

Abstract: A jointed wind turbine rotor blade includes a first blade segment and a second blade segment. A chord-wise joint separates the first and second blade segments, wherein internal joint structure joins the first and second blade segments across the chord-wise joint. A first heating system is configured within the first blade segment, and a second heating system is configured within the second blade segment. A disconnectable coupling is configured between the first and second blade segments at the chord-wise joint to supply power or a fluid medium from the first blade segment across the chord-wise joint for use by the second heating system in the second blade segment.

Abstract: A jointed wind turbine rotor blade includes a first blade segment and a second blade segment. A chord-wise joint separates the first and second blade segments, wherein internal joint structure joins the first and second blade segments across the chord-wise joint. A first heating system is configured within the first blade segment, and a second heating system is configured within the second blade segment. A disconnectable coupling is configured between the first and second blade segments at the chord-wise joint to supply power or a fluid medium from the first blade segment across the chord-wise joint for use by the second heating system in the second blade segment.

Abstract: A method for protecting personnel working in a wind turbine nacelle or hub includes monitoring a nacelle roof hatch and a hub access hatch, each hatch having a switch configured therewith. When at least one of the hatches is detected as opened, a control system detects if a rotor lock has been engaged. If the rotor lock has not been engaged, the control system triggers a rotor brake to stop rotor and drivetrain component rotational movement and actuates a first control lockout between the respective switch configured with the open hatch and the rotor brake. The control system also initiates a control lockout that prevents release of the rotor brake until the switch indicates that the open hatch has been closed and the first control lockout has been reset.

Abstract: A jointed wind turbine rotor blade includes a first blade segment and a second blade segment. A chord-wise joint separates the first and second blade segments, wherein internal joint structure joins the first and second blade segments across the chord-wise joint. A first heating system is configured within the first blade segment, and a second heating system is configured within the second blade segment. A disconnectable coupling is configured between the first and second blade segments at the chord-wise joint to supply power or a fluid medium from the first blade segment across the chord-wise joint for use by the second heating system in the second blade segment.

Abstract: A method for protecting personnel working in a wind turbine nacelle or hub includes monitoring a nacelle roof hatch and a hub access hatch, each hatch having a switch configured therewith. When at least one of the hatches is detected as opened, a control system detects if a rotor lock has been engaged. If the rotor lock has not been engaged, the control system triggers a rotor brake to stop rotor and drivetrain component rotational movement and actuates a first control lockout between the respective switch configured with the open hatch and the rotor brake. The control system also initiates a control lockout that prevents release of the rotor brake until the switch indicates that the open hatch has been closed and the first control lockout has been reset.

Abstract: A wind turbine is provided. The wind turbine includes at least one unit to be cooled, a tower, an anchor structure arranged at a lower end of the tower, and a heat exchanger. The anchor structure is at least partially filled with a liquid. The heat exchanger is configured to cool the at least one unit using the liquid as a coolant.