Wind power installation and method for adjusting the rotor rotation axis

Abstract

The invention is directed to a wind power installation ( 1 ) with a rotor ( 4 ) which has two or possibly more rotor blades ( 5 ) and which is rotatably bearing-supported for rotation around a rotor rotation axis ( 2 ). The rotor is connected to a generator for generating electrical power, and the rotor and the generator form a part of a turbine (T) which is received by a turbine carrier ( 3; 40 ), and the turbine carrier is rotatably arranged at a supporting structure ( 7 ). The turbine is movably mounted in the turbine carrier by means of a bearing device so that the spatial position of the turbine (T) in the turbine carrier can be modified, and a pivoting range of the turbine (T) corresponding to a pivoting range of the rotor rotation axis includes a first angle range and a second angle range relative to a reference plane, and the entire pivoting range is at least 120°. The invention is also directed to a method for operating the wind power installation and to measures associated with an assembly or disassembly of the wind power installation ( 1 ).

1 . Wind power installation ( 1 ) with a rotor ( 4 ) which has two or possibly more rotor blades ( 5 ) and which is rotatably bearing-supported for rotation around a rotor rotation axis ( 2 ), wherein the rotor ( 4 ) is connected to a generator ( 10 ) for generating electrical power, and the rotor ( 4 ) and the generator ( 10 ) form a part of a turbine which is received by a turbine carrier ( 3 ;  40 ), and the turbine carrier is rotatably arranged at a supporting structure ( 7 ), wherein the turbine is movably mounted in the turbine carrier by means of a bearing device ( 11 ;  36 ,  46 ;  68 ) so that the spatial position of the turbine in the turbine carrier ( 3 ;  40 ) can be modified, and a pivoting range of the turbine (T) corresponding to a pivoting range of the rotor rotation axis ( 2 ) includes a first angle range and a second angle range relative to a reference plane (H), and the entire pivoting range is at least 120°. 
     
     
         2 . Wind power installation according to  claim 1 , wherein the bearing device ( 11 ;  36 ,  46 ;  68 ) comprises a pivot bearing ( 11 ), and the turbine (T) is supported by means of the pivot bearing ( 11 ) so as to be pivotable around a rotation axis ( 8 ), or the bearing device for the pivoting of the turbine (T) has a mechanical device which comprises a four-bar linkage. 
     
     
         3 . Wind power installation according to  claim 1  or  2 , wherein the turbine carrier ( 3 ;  40 ) includes a actuator ( 9 ) for pivoting the turbine (T) around the first angle range during operation of the wind power installation ( 1 ). 
     
     
         4 . Wind power installation according to one of  claims 1  to  3 , wherein the turbine carrier ( 3 ;  40 ) and the turbine (T) include a pivoting device ( 51 ,  60 - 66 ) for pivoting the turbine (T) around the second angle range when the wind power installation ( 1 ) is not in operation. 
     
     
         5 . Wind power installation according to  claim 4 , wherein the turbine carrier ( 3 ;  40 ) has a further bearing device ( 68 ,  70 ) in which the turbine (T) is rotatably mounted at least temporarily during pivoting in the pivoting range according to the second angle range. 
     
     
         6 . Wind power installation according to  claim 5 , wherein the further bearing device ( 68 ,  70 ) is designed for temporarily engaging with at least one connection arm ( 67 ) arranged at the turbine (T) during pivoting, wherein the engagement between the turbine ( 1 ) and the further bearing device ( 68 ,  70 ) is releasable by means of the pivoting device ( 51 ,  60 - 66 ) at the conclusion of the pivoting process. 
     
     
         7 . Wind power installation according to  claim 6 , wherein the pivoting device ( 51 ,  60 - 66 ) has a cable control ( 61 - 66 ) for movably holding the turbine (T) during the pivoting process and for releasing the engagement at the conclusion of the pivoting process. 
     
     
         8 . Wind power installation according to  claim 7 , wherein the pivoting device ( 51 ,  60 - 66 ) is designed to lower the turbine (T) in the pivoted position by means of the cable control ( 61 - 66 ). 
     
     
         9 . Wind power installation according to one of  claims 1  to  8 , wherein the turbine carrier ( 3 ;  40 ) has a displacing device ( 18 ) for moving the turbine carrier ( 3 ;  40 ) along the supporting structure ( 7 ) between an uppermost position (P 1 ) at an upper end of the supporting structure ( 7 ) and a lowermost position (P 2 ) at the foot of the supporting structure. 
     
     
         10 . Wind power installation according to  claim 9 , wherein the turbine carrier ( 3 ;  40 ) has a holding device ( 19 ) for carrying and securing the turbine carrier ( 3 ;  40 ) at any position (P 1 , P 2 ; P 3 ) along the supporting structure ( 7 ). 
     
     
         11 . Wind power installation according to one of  claims 2  to  10 , wherein the pivot bearing ( 11 ) is arranged in the vicinity of the center of gravity of the turbine (T). 
     
     
         12 . Wind power installation according to one of  claims 4  to  9 , wherein the pivoting device ( 51 ,  60  to  65 ) comprises first pulleys ( 61 ) at the turbine (T), and the first pulleys are arranged at the turbine (T) in the vicinity of the center of gravity thereof. 
     
     
         13 . Method for operating a wind power installation including a rotor ( 4 ) which has two or possibly more rotor blades ( 5 ) and which is rotatably bearing-supported for rotation around a rotor rotation axis ( 2 ), wherein the rotor ( 4 ) is connected to a generator ( 10 ) for generating electrical power, and the rotor ( 4 ) and the generator ( 10 ) form a part of a turbine (T) which is received by a turbine carrier ( 3 ;  40 ), and the turbine carrier is rotatably bearing-supported on a supporting structure ( 7 ), wherein, depending on a detected wind speed during operation of the wind power installation ( 1 ), an actuator ( 9 ) connected to the turbine (T) is actuated for adjusting the inclination of the rotor axis ( 2 ) within a first angle range relative to a reference plane (H). 
     
     
         14 . Method for operating a wind power installation including a rotor ( 4 ) which has two or possibly more rotor blades ( 5 ) and which is rotatably hearing-supported for rotation around a rotor rotation axis ( 2 ), wherein the rotor ( 4 ) is connected to a generator ( 10 ) for generating electrical power, and the rotor ( 4 ) and the generator ( 10 ) form a part of a turbine (T) which is received by a turbine carrier ( 3 ;  40 ), and the turbine carrier is rotatably bearing-supported on a supporting structure ( 7 ), wherein, depending on the detected wind speed, a displacing device ( 18 ) is actuated for lowering the turbine carrier from a first position (P 1 ) to further, lower position (P 3 ), and the turbine carrier is held in the further position (P 3 ) by means of a holding device ( 19 ). 
     
     
         15 . Method for operating a wind power installation including a rotor ( 4 ) which has two or possibly more rotor blades ( 5 ) and which is rotatably bearing-supported for rotation around a rotor rotation axis ( 2 ), wherein the rotor ( 4 ) is connected to a generator ( 10 ) for generating electrical power, and the rotor ( 4 ) and the generator ( 10 ) form a part of a turbine (T) which is received by a turbine carrier ( 3 ;  40 ), and the turbine carrier is rotatably bearing-supported on a supporting structure ( 7 ), wherein, with the rotor ( 4 ) stopped, the turbine (T) is pivoted by actuating a pivoting device ( 51 ,  60 - 66 ) according to a predetermined angle range such that the rotor rotation axis ( 2 ) is approximately perpendicular to a reference plane (H), and the turbine (T) is lowered from any position (P 1 , P 3 ) along the supporting structure ( 7 ) to a lowermost position (P 2 ) at the foot of the supporting structure ( 7 ) and set down on a ground surface ( 100 ) by further actuation of the pivoting device.