摘要:
A wind turbine blade, includes a sensor, arranged upstream from a trailing edge of the blade for measuring an airflow characteristic near a surface of the blade; and an actuator, arranged downstream from the sensor, for adjusting the airflow in response to the measured characteristic.
摘要:
A blade for a wind turbine includes a total backward twist of between approximately 6 degrees and approximately 15 degrees between an outer approximately 1 percent to approximately 10 percent of a rotor radius of the blade; and a total normalized chord change of between approximately one percent and approximately two percent between the outer approximately 1 percent to approximately 10 percent of the rotor radius of the blade.
摘要:
A blade for a wind turbine includes a total backward twist of between approximately 6 degrees and approximately 15 degrees between an outer approximately 1 percent to approximately 10 percent of a rotor radius of the blade.
摘要:
A blade for a wind turbine includes a total backward twist of between approximately 6 degrees and approximately 15 degrees between an outer approximately 1 percent to 10 percent of a rotor radius of the blade; and an approximate planform distribution within the following ranges r/Rc/R(LE)c/R(TE) .960.60 to 0.65%−1.42 to −1.34% .9680.54 to 0.59%−1.31 to −1.34% .9740.39 to 0.58%−1.36 to −1.22% .98060.13 to 0.57%−1.45 to −1.06% .9856−0.23 to 0.56% −1.56 to −0.74% .9906−0.76 to 0.55% −1.74 to −0.24% .9956−1.44 to 0.54% −1.99 to 0.23% 1.00−2.17 to 0.54% −2.27 to 0.44% where “r/R” is an approximate normalized distance outward from a center of rotation of the blade along a span of the blade; and “c/R(LE)” and “c/R(TE)” are approximate relative positions of a leading (LE) and trailing edge (TE) of a chord “c” expressed as a percentage of a distance outward from the center of rotation at each r/R.
摘要:
A blade for a wind turbine includes a total backward twist of between approximately 6 degrees and approximately 15 degrees between an outer approximately 1 percent to approximately 10 percent of a rotor radius of the blade.
摘要:
A blade for a wind turbine includes a total backward twist of between approximately 6 degrees and approximately 15 degrees between an outer approximately 1 percent to approximately 10 percent of a rotor radius of the blade; and a total normalized chord change of between approximately one percent and approximately two percent between the outer approximately 1 percent to approximately 10 percent of the rotor radius of the blade.
摘要:
A blade for a wind turbine includes a total backward twist of between approximately 6 degrees and approximately 15 degrees between an outer approximately 1 percent to 10 percent of a rotor radius of the blade; and an approximate planform distribution within the following ranges r/Rc/R(LE)c/R(TE) .960.60 to 0.65%−1.42 to −1.34% .9680.54 to 0.59%−1.31 to −1.34% .9740.39 to 0.58%−1.36 to −1.22% .98060.13 to 0.57%−1.45 to −1.06% .9856−0.23 to 0.56% −1.56 to −0.74% .9906−0.76 to 0.55% −1.74 to −0.24% .9956−1.44 to 0.54% −1.99 to 0.23% 1.00−2.17 to 0.54% −2.27 to 0.44% where “r/R” is an approximate normalized distance outward from a center of rotation of the blade along a span of the blade; and “c/R(LE)” and “c/R(TE)” are approximate relative positions of a leading (LE) and trailing edge (TE) of a chord “c” expressed as a percentage of a distance outward from the center of rotation at each r/R.
摘要:
A rotor blade assembly for a wind turbine and a method for increasing a loading capability of a rotor blade within a maximum load limit for a wind turbine are disclosed. The rotor blade assembly includes a rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade assembly further includes an extension connected to a surface of the rotor blade, the extension having at least one design characteristic configured for increasing a loading capability of the rotor blade within a maximum load limit for the wind turbine. The design characteristic is one of extension length, extension width, extension curvature, span-wise extension location, chord-wise extension location, or extension angle with respect to a chord line of the rotor blade.
摘要:
A wind turbine rotor blade assembly includes a rotor blade having a pressure side, a suction side, a leading edge, and a trailing edge extending in a generally span-wise direction between a tip and a root. An edge extension is attached along the trailing edge and includes a first strip member having a span-wise attachment section attached to pressure side, and a second strip member having a span-wise attachment section attached to the suction side. Each of the first and second strip members has an outboard edge and an extension section that projects chord-wise beyond the trailing edge. The extension sections are adhesively attached to each other outboard of the trailing edge along a span-wise length of the first and second strip members and define an adhesively bonded closure edge of the edge extension. A method is also provided for forming an edge extension on a wind turbine rotor blade.
摘要:
A lift generating apparatus for a wind turbine rotor blade comprising a first sidewall and an opposing second sidewall coupled together at a leading edge and at a trailing edge. The lift generating apparatus includes at least one forward blade extension coupled to the rotor blade to define a first airflow channel between the forward blade extension and the rotor blade. The lift generating apparatus also includes at least one aft blade extension coupled to the rotor blade to define a second airflow channel between the aft blade extension and the rotor blade.