摘要:
A wind turbine rotor blade includes a plurality of lightning receptors configured along either or both of the pressure side or suction side of the blade. At least one looped lightning conductive circuit is provided, with the lightning receptors configured in communication with a respective lightning conductive circuit. The lightning conductive circuit has terminal ends that extend through the root for connection of each terminal end with a grounding system within the wind turbine. The looped lightning conductive circuit provides a redundant path to each lightning receptor for conducting a lightning strike to ground.
摘要:
A wind turbine rotor blade includes a plurality of lightning receptors configured along either or both of the pressure side or suction side of the blade. At least one continuity circuit is configured with the blade, with the lightning receptors disposed in series within a respective continuity circuit such that an electrical continuity path defined by the circuit passes through each of the lightning receptors within the continuity circuit. The circuit has terminal ends that extend through the blade root for conducting continuity checks with the circuit.
摘要:
A wind turbine rotor blade includes a plurality of lightning receptors configured along either or both of the pressure side or suction side of the blade. At least one looped lightning conductive circuit is provided, with the lightning receptors configured in communication with a respective lightning conductive circuit. The lightning conductive circuit has terminal ends that extend through the root for connection of each terminal end with a grounding system within the wind turbine. The looped lightning conductive circuit provides a redundant path to each lightning receptor for conducting a lightning strike to ground.
摘要:
A wind turbine blade includes an upper shell member and a lower shell member joined at leading and trailing edges of the blade with a bond material. Portions of the bond material are externally exposed. The bond material has surface characteristics of at least one of a Shore D hardness value of greater than about 80 durometer or a Young's modulus stiffness value of greater than about 5 GPa. A protective coating is applied over the upper and lower shell members and exposed portions of the bond material.
摘要:
Disclosed is a blade including a blade body including a leading edge and a trailing edge, and at least one trailing edge cavity defined by a blade area disposed in at least partial alignment with the trailing edge, the at least one cavity extending a desired depth into said blade body in a direction of the leading edge.
摘要:
A system and method for performing an external inspection on a rotor blade of a wind turbine are disclosed. The system may generally include a frame configured to extend at least partially around an outer perimeter of the rotor blade and a sensing device coupled to the frame. Additionally, first and second spacer arms may extend from the frame. The first spacer arm may be configured to contact a pressure side surface of the rotor blade. The second spacer arm may be configured to contact a suction side surface of the rotor blade.
摘要:
A system and method for performing a continuity test on a lightning conduction system of a wind turbine are disclosed. The system generally includes a testing device having a blade ring configured to be positioned around at least a portion of an outer perimeter of a rotor blade of the wind turbine. A carriage may be attached to the testing device and a cable may be attached to the carriage. The cable may generally extend between a first anchor point and a second anchor point, wherein the anchor points are spaced apart from one another such that a lightning receptor of the lightning conduction system is disposed between the anchor points. Additionally, the cable may be coupled between the anchor points such that, as the cable is displaced, the testing device is moved to a position at which an electrically conductive member of the testing device contacts the lightning receptor.
摘要:
A composite laminate material is disclosed. The composite laminate material includes a plurality of adjacently disposed plies. At least one of the plies is configured as a terminated ply. Additionally, a ply drop is defined by the terminated ply, wherein the ply drop is modified to reduce stress concentrations within the composite laminate material.
摘要:
A spar cap assembly for a rotor blade of a wind turbine is disclosed. In general, the spar cap assembly may include a tensile spar cap formed from a composite material and configured to engage an inner surface of the rotor blade. The tensile spar cap may generally have a first thickness and a first cross-sectional area. Additionally, the spar cap assembly may include a compressive spar cap formed from the same composite material and configured to engage an opposing inner surface of the rotor blade. The compressive spar cap may generally have a second thickness and a second cross-sectional area that is greater than the first cross-sectional area. Additionally, the composite material is generally selected so that at least one of a strength and a modulus of elasticity of the composite material differs depending on whether the material is in tension or in compression.
摘要:
A system and method for performing a continuity test on a lightning conduction system of a wind turbine are disclosed. The system generally includes a testing device having a blade ring configured to be positioned around at least a portion of an outer perimeter of a rotor blade of the wind turbine. A carriage may be attached to the testing device and a cable may be attached to the carriage. The cable may generally extend between a first anchor point and a second anchor point, wherein the anchor points are spaced apart from one another such that a lightning receptor of the lightning conduction system is disposed between the anchor points. Additionally, the cable may be coupled between the anchor points such that, as the cable is displaced, the testing device is moved to a position at which an electrically conductive member of the testing device contacts the lightning receptor.