Noise reducer for rotor blade in wind turbine
First Claim
1. A rotor blade assembly for a wind turbine, comprising:
- 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; and
,a noise reducer configured on a surface of the rotor blade, the noise reducer comprising a plurality of noise reduction features, each of the plurality of noise reduction features comprising;
a first surface comprising a first portion mounted to one of the pressure side or the suction side and a second portion configured to interact with wind flowing past the other of the pressure side or the suction side;
a second surface interrupting an aerodynamic contour of the one of the pressure side or the suction side, anda first layer and a second layer, the first layer comprising the first portion and second surface of each of the plurality of noise reduction features and the second layer comprising the second portion, wherein the first layer is formed from an acoustic absorption material.
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Accused Products
Abstract
A rotor blade assembly and a method for reducing the noise of a rotor blade for a wind turbine are disclosed. The rotor blade has 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 a noise reducer configured on a surface of the rotor blade, the noise reducer including a plurality of noise reduction features. Each of the plurality of noise reduction features includes a first surface and a second surface. The first surface includes a first portion mounted to one of the pressure side or the suction side and a second portion configured to interact with wind flowing past the other of the pressure side or the suction side. The second surface interrupts an aerodynamic contour of the one of the pressure side or the suction side.
106 Citations
18 Claims
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1. A rotor blade assembly for a wind turbine, comprising:
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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; and
,a noise reducer configured on a surface of the rotor blade, the noise reducer comprising a plurality of noise reduction features, each of the plurality of noise reduction features comprising; a first surface comprising a first portion mounted to one of the pressure side or the suction side and a second portion configured to interact with wind flowing past the other of the pressure side or the suction side; a second surface interrupting an aerodynamic contour of the one of the pressure side or the suction side, and a first layer and a second layer, the first layer comprising the first portion and second surface of each of the plurality of noise reduction features and the second layer comprising the second portion, wherein the first layer is formed from an acoustic absorption material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wind turbine, comprising:
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a plurality of rotor blades, each of the plurality of rotor blades having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root; and
,a noise reducer configured on a surface of at least one of the plurality of rotor blades, the noise reducer comprising a plurality of noise reduction features, each of the plurality of noise reduction features comprising; a first surface comprising a first portion mounted to one of the pressure side or the suction side and a second portion configured to interact with wind flowing past the other of the pressure side or the suction side; a second surface interrupting an aerodynamic contour of the one of the pressure side or the suction side; and a first layer and a second layer, the first layer comprising the first portion and second surface of each of the plurality of noise reduction features and the second layer comprising the second portion, wherein the first layer is formed from an acoustic absorption material. - View Dependent Claims (14, 15, 16, 17)
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18. A method for reducing the noise of a rotor blade for a wind turbine, the method comprising:
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mounting a noise reducer on a rotor blade, the noise reducer comprising a plurality of noise reduction features, each of the plurality of noise reduction features comprising a first surface comprising a first portion mounted to one of a pressure side or a suction side of the rotor blade and a second portion configured to interact with wind flowing past the other of the pressure side or the suction side, a second surface interrupting an aerodynamic contour of the one of the pressure side or the suction side, and a first layer and a second layer, the first layer comprising the first portion and second surface of each of the plurality of noise reduction features and the second layer comprising the second portion, wherein the first layer is formed from an acoustic absorption material; and
,rotating the rotor blade on the wind turbine.
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Specification