Non-contact brake device, brake system and wind turbine generator system

Abstract

The application provides a non-contact brake device, a brake system and a wind turbine generator set, and solves the technical problem that the locking pin of a wind wheel locking mechanism often gets stuck after the wind wheel is stopped for a long time in the prior art. When the wind wheel needs to be braked (i.e. locked), the first coil and the second coil are powered, and the first coil and the second coil generate repulsion under the action of power supply. Since the second coil is arranged between the two adjacent first coils, the wind wheel cannot rotate no matter whether it rotates clockwise or counterclockwise due to the repulsion between the first coil and the second coil, and thus the function of braking the wind wheel is achieved. When the wind wheel needs to be unlocked, the power supply of the first coil and the second coil only needs to be disconnected.

Description

Technical Field

[0001] This application relates to the field of wind turbine braking technology, specifically to a non-contact braking device, braking system, and wind turbine generator set. Background Technology

[0002] Wind turbine generators are devices that convert wind energy into electrical energy. Wind energy is a safe and reliable green energy source. Different wind turbine generators have certain requirements for wind speed. During the normal operation of a wind turbine generator, an emergency shutdown is required when the wind speed is higher or lower than the design range. When a wind turbine generator malfunctions and needs to be repaired, it is also necessary to shut it down first.

[0003] When a wind turbine is shut down, the rotor may continue to rotate. To prevent this, a rotor braking or locking system is installed to brake and / or lock the rotor. Currently, wind turbine rotor braking systems all use a pin-and-hole mechanical braking structure at the rotor end. However, this type of device often experiences locking pin jamming after the rotor has been shut down for an extended period, and the rotor locking process is cumbersome and requires precise alignment. Summary of the Invention

[0004] In view of this, this application provides a non-contact braking device, braking system, and wind turbine generator set, which solves the technical problem that the locking pin of the wind turbine locking mechanism often gets stuck after the wind turbine has been shut down for a long time in the prior art.

[0005] As a first aspect of this application, this application provides a non-contact braking device suitable for wind turbines, comprising: a braking base; a braking shaft disposed within the braking base; a plurality of first coils disposed on the braking shaft; and a plurality of second coils disposed within the braking base; wherein the second coils are disposed between two adjacent first coils; and the winding directions of the first coils and the second coils are the same.

[0006] In one possible implementation, the boundary of the projection of the second coil onto the circumferential surface of the brake shaft contacts the boundary of the projections of the two adjacent first coils onto the circumferential surface of the brake shaft.

[0007] In one possible implementation, the brake base includes: a first brake base; and

[0008] A second brake base that is detachably connected to the first brake base.

[0009] In one possible implementation, a plurality of the first coils are evenly distributed circumferentially along the braking shaft.

[0010] In one possible implementation, a plurality of the second coils are evenly distributed along the inner side of the brake base.

[0011] In one possible implementation, the number of the first coils is equal to the number of the second coils.

[0012] In one possible implementation, the number of both the first coil and the second coil is an even number.

[0013] As a second aspect of this application, this application provides a non-contact braking system, comprising:

[0014] The aforementioned non-contact braking device; a power supply; a switch, one end of which is electrically connected to the power supply, and the other end of which is connected to the energized ends of the first coil and the second coil respectively; a detection device configured to detect whether the non-contact braking device needs to operate; and a braking controller; wherein the braking controller is communicatively connected to the control ends of the detection device and the switch respectively, and the braking controller is configured to generate a control signal based on the signal transmitted by the detection device indicating whether the non-contact braking device is operating, the control signal being used to control whether both the first coil and the second coil are energized.

[0015] In one possible implementation, the brake base includes: a first brake base; a second brake base detachably connected to the first brake base; the detection device is used to detect whether the first brake base and the second brake base are connected; wherein, the brake controller is configured to generate the control signal based on the signal transmitted by the detection device indicating whether the first brake base and the second brake base are connected.

[0016] As a third aspect of this application, this application also provides a wind turbine generator set, including: the non-contact braking system described above.

[0017] This application provides a non-contact braking device. When the wind turbine needs to be braked (i.e., locked), the first and second coils are energized, generating magnetic force. Since the first and second coils are wound in the same direction, a repulsive force is generated between them. Because the second coil is positioned between two adjacent first coils, the wind turbine cannot rotate clockwise or counterclockwise due to this repulsive force, thus braking the wind turbine. When the wind turbine needs to be unlocked, simply disconnecting the energizer between the first and second coils is sufficient. Without energizer, there is no repulsive force between the first and second coils, allowing the wind turbine to rotate regardless of clockwise or counterclockwise rotation. Therefore, the braking principle of the non-contact braking device in this application is based on the repulsive force between the coils. There is no mechanical connection between the braking devices, eliminating the need for alignment during mechanical connection and preventing locking pin jamming or inability to unlock properly. Attached Figure Description

[0018] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain the application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0019] Figure 1 The diagram shown is a structural schematic of a non-contact braking device according to an embodiment of this application;

[0020] Figure 2 The diagram shown is a structural schematic of a non-contact braking device according to another embodiment of this application;

[0021] Figure 3 The diagram shown is a distribution diagram of the first coil and the second coil in a non-contact braking device provided in an embodiment of this application;

[0022] Figure 4 The diagram shown is a distribution diagram of the first coil and the second coil in a non-contact braking device provided in an embodiment of this application;

[0023] Figure 5 The diagram shown is a distribution diagram of the first coil and the second coil in a non-contact braking device provided in an embodiment of this application;

[0024] Figure 6 The diagram shown is a distribution diagram of the first coil and the second coil in a non-contact braking device provided in an embodiment of this application;

[0025] Figure 7 The diagram shown is a schematic diagram illustrating the working principle of a non-contact braking system according to an embodiment of this application.

[0026] Figure 8 The diagram shown is a schematic diagram of the working principle of an electronic device provided in an embodiment of this application.

[0027] Figure label:

[0028] 10-Brake base; 13-First coil; 12-Brake shaft; 11-Second coil; 14-First projection; 15-Second projection; 16-Third projection; 101-First brake base; 102-Second brake base; 1-Non-contact braking device; 20-Power supply; K-Switch; 30-Detection device; 40-Brake controller. Detailed Implementation

[0029] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, top, bottom, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0030] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] Application Overview

[0032] When a wind turbine is shut down, the rotor may continue to rotate. To prevent this, a rotor braking or locking system is installed to brake and / or lock the rotor. For example, a braking mechanism typically includes a locking hole and a locking pin. The locking hole can be located on the rotor hub or other parts of the rotor. The locking pin can be positioned at a predetermined location on the nacelle and slide against it, specifically against the nacelle's bearing housing. During rotor maintenance, the locking pin extends and engages with the locking hole to lock the rotor. After blade maintenance, the locking pin retracts to release the rotor. However, when locking the rotor, the locking pin needs to be aligned with the locking hole, a cumbersome process. Furthermore, after prolonged shutdown, the locking pin may become stuck due to the engagement of the locking hole, preventing normal unlocking and requiring manual intervention, increasing costs.

[0033] Therefore, this application provides a non-contact braking device. When the wind turbine needs to be braked (i.e., locked), the first and second coils are energized, generating magnetic force. Since the first and second coils are wound in the same direction, a repulsive force is generated between them. Because the second coil is positioned between two adjacent first coils, the wind turbine cannot rotate clockwise or counterclockwise due to this repulsive force, thus braking the wind turbine. When the wind turbine needs to be unlocked, simply disconnecting the energizer between the first and second coils is sufficient. Without energizer, there is no repulsive force between the first and second coils, allowing the wind turbine to rotate clockwise or counterclockwise. Therefore, the braking principle of the non-contact braking device in this application is based on the repulsive force between the coils. There is no mechanical connection between the braking devices, eliminating the need for alignment during mechanical connection and preventing locking pin jamming or inability to unlock properly.

[0034] The technical methods described below, with reference to the accompanying drawings of the embodiments of this application, will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] Exemplary device

[0036] As a first aspect of this application, this application provides a non-contact braking device for locking a wind turbine. Figure 1The diagram shown is a structural schematic of a non-contact braking device according to an embodiment of this application. Figure 1 As shown, the non-contact braking device includes:

[0037] Brake base 10; brake shaft 12 disposed within brake base 10; multiple first coils 13 disposed on brake shaft 12; multiple second coils 11 disposed within brake base 10; wherein, the second coils 11 are disposed between two adjacent first coils 13; and the coil winding direction of the first coils 13 is the same as the coil winding direction of the second coils 11.

[0038] Specifically, the arrangement of multiple first coils 13 on the brake shaft 12 can be as follows: multiple support shafts are fixed on the brake shaft 12, and the first coils 13 are sleeved on the support shafts, thereby realizing the arrangement of multiple first coils 13 on the brake shaft 12.

[0039] When the wind turbine needs to be braked (i.e., locked), the first coil 13 and the second coil 11 are energized, generating magnetic force. Since the first coil 13 and the second coil 11 are wound in the same direction, a repulsive force is generated between them. Because the second coil 11 is positioned between two adjacent first coils 13, the wind turbine cannot rotate clockwise or counterclockwise due to this repulsive force, thus braking the wind turbine. When the wind turbine needs to be unlocked, simply disconnecting the energizer between the first coil 13 and the second coil 11 is sufficient. Without energizer, there is no repulsive force between the first coil 13 and the second coil 11, allowing the wind turbine to rotate clockwise or counterclockwise. Therefore, the braking principle of the non-contact braking device in this application is based on the repulsive force between the coils. There is no mechanical connection between the braking devices, eliminating the need for alignment during mechanical connection and preventing locking pin jamming or inability to unlock properly.

[0040] In one possible implementation, such as Figure 2 As shown, the brake base 10 includes: a first brake base 101; and a second brake base 102 detachably connected to the first brake base 101.

[0041] By dividing the brake base 10 into two detachably connected first brake base 101 and second brake base 102, when the wind turbine needs braking, the first brake base 101 and the second brake base 102 can be installed. After the first brake base 101 and the second brake base 102 are installed, the first coil 13 and the second coil 11 are energized. When the wind turbine needs to be unlocked, the first brake base 101 and the second brake base 102 can be disassembled to disconnect the energization of the first coil 13 and the second coil 11.

[0042] Specifically, a detection device can be used to detect whether the first brake base 101 and the second brake base 102 are installed. When the detection device detects that the first brake base 101 and the second brake base 102 are installed, it transmits an installation signal to the brake controller. The brake controller then energizes the first coil 13 and the second coil 11 according to the installation signal, thereby locking the wind turbine. When the detection device detects that the first brake base 101 and the second brake base 102 are disassembled, it transmits a disassembly signal to the brake controller. The brake controller then disconnects the energizer on the first coil 13 and the second coil 11 according to the disassembly signal, allowing the wind turbine to rotate.

[0043] In one possible implementation, such as Figures 3-4 As shown, the boundary of the projection of the second coil 11 onto the circumferential surface of the brake shaft 12 contacts the boundaries of the projections of the two adjacent first coils 13 onto the circumferential surface of the brake shaft 12. For example, as shown in example 3, the projection of the second coil 11 onto the circumferential surface of the brake shaft 12 is the first projection 14, and the projections of the two adjacent first coils 13 onto the brake shaft 12 are the second projection 15 and the third projection 16, respectively. The first projection 14 and its two boundaries contact the boundaries of the second projection 15 and the third projection 16, respectively, but do not overlap. The fact that the first projection 14 and its two boundaries only contact the boundaries of the second projection 15 and the third projection 16 ensures that the repulsive force between the second coil 11 and the first coil 13 is strong within the space between the two first coils 13, further preventing the wind turbine from rotating. The fact that the first projection 14 and its two boundaries do not overlap with the boundaries of the second projection 15 and the third projection 16 reduces electromagnetic interference between the coils.

[0044] In one possible implementation, the second coil 11 is disposed between two adjacent first coils 13 in a manner including, but not limited to, the following arrangements:

[0045] (1) Only one second coil 11 is provided between any two adjacent first coils 13, that is, the first coils 13 and the second coils 11 are provided alternately, such as Figures 1-2 As shown.

[0046] (2) Multiple second coils 11 are provided between any two adjacent first coils 13, for example, two second coils 11 are provided between any two adjacent first coils 13. Figure 5 As shown.

[0047] Optionally, when multiple second coils 11 are arranged between any two adjacent first coils 13, the number of second coils 11 arranged between any two adjacent first coils 13 can be equal or unequal. For example, two second coils 11 can be arranged between any two adjacent first coils 13. Figure 5 As shown.

[0048] (3) The number of second coils 11 between at least two adjacent sets of first coils 13 is different. For example, the number of first coils 13 is 4, and the 4 first coils 13 form 4 interval spaces. The number of second coils 11 set in each interval space can be 1 or more. For example, 2 of the 4 interval spaces are each set with 1 second coil 11, and the other 2 interval spaces are each set with 2 second coils 11. Figure 6 As shown.

[0049] In one possible implementation, the distribution of the plurality of first coils 13 on the brake shaft 12 may include, but is not limited to, the following distribution:

[0050] (1) Multiple first coils 13 are evenly distributed around the brake shaft 12, such as Figures 1-2 As shown, the angles between the two straight lines formed by the centers of any two adjacent first coils 13 and the axis of the brake shaft 12 are equal.

[0051] (2) Multiple first coils 13 are randomly distributed, such as Figure 6 As shown.

[0052] Similarly, the distribution of multiple second coils 11 can include, but is not limited to, the following distribution methods:

[0053] (1) Multiple second coils 11 are evenly distributed along the inner side of the brake base 10, such as Figures 1-2 As shown.

[0054] (2) Multiple second coils 11 are randomly distributed, such as Figure 6 As shown.

[0055] Optionally, the number of first coils 13 is equal to the number of second coils 11, such as... Figure 1 As shown. The number of first coils 13 is equal to the number of second coils 11, which allows the first coils 13 and the second coils 11 to be arranged alternately.

[0056] Optionally, the number of the first coil 13 and the number of the second coil 11 are both even numbers.

[0057] Exemplary System

[0058] As a second aspect of this application, this application also provides a non-contact braking system, such as... Figure 7 As shown, the non-contact braking system includes: the aforementioned non-contact braking device 1; a power supply 20; a switch K, one end of which is electrically connected to the power supply 20, and the other end of which is connected to the energized ends of the first coil 13 and the second coil 11 respectively; a detection device 30, configured to detect whether the braking device needs to operate; and a brake controller 40; wherein the brake controller 40 is communicatively connected to the control ends of the detection device 30 and the switch K respectively, and the brake controller 40 is configured to generate a control signal based on the signal transmitted by the detection device 30 indicating whether the non-contact braking device is operating, and the control signal is used to control whether both the first coil 13 and the second coil 11 are energized.

[0059] When the wind turbine needs braking, the detection device 30 detects that the wind turbine needs braking, that is, the non-contact braking device 1 needs to work. The detection device 30 transmits the working signal to the braking controller 40. The braking controller 40 generates a conduction control signal according to the working signal and transmits the conduction control signal to the switch K and the power supply 20. The switch K is turned on under the control of the conduction control signal, and the power supply 20 supplies power under the control of the conduction control signal. At this time, the first coil 13 and the second coil 11 are energized, and a repulsive force is generated between the first coil 13 and the second coil 11. Since the first coil 13 is located between two adjacent second coils 11, the wind turbine cannot rotate due to the repulsive force between the first coil 13 and the second coil 11, whether it rotates clockwise or counterclockwise. Therefore, it plays a role in braking the wind turbine. When the wind turbine needs to be unlocked, the detection device 30 detects the unlocking signal and transmits it to the brake controller 40. The brake controller 40 generates a disconnection control signal based on the unlocking signal and transmits it to the power supply 20 and / or switch K. The power supply 20 is turned off under the control of the disconnection control signal, and the switch K is turned off under the control of the disconnection control signal, thereby stopping the power supply 20 from energizing the first coil 13 and the second coil 11. Since there is no power, there is no repulsive force between the first coil 13 and the second coil 11. Therefore, the wind turbine can rotate whether it rotates clockwise or counterclockwise.

[0060] In one possible implementation, such as Figure 2 As shown, the brake base 10 includes: a first brake base 101; and a second brake base 102 detachably connected to the first brake base 101.

[0061] At this time, the detection device 30 is used to detect whether the first brake base 101 and the second brake base 102 are connected; wherein, the brake controller 40 is configured to generate a control signal based on the signal transmitted by the detection device 30 indicating whether the first brake base 101 and the second brake base 102 are connected.

[0062] After the first brake base 101 and the second brake base 102 are connected, the detection device 30 detects that the first brake base 101 and the second brake base 102 are installed, and then transmits the installation signal to the brake controller 40. The brake controller 40 generates a conduction control signal according to the installation signal and transmits the conduction control signal to the switch K and the power supply 20. The switch K is turned on under the control of the conduction control signal, and the power supply 20 is turned on under the control of the conduction control signal. Therefore, the electricity output by the power supply 20 is transmitted to the first coil 13 and the second coil 11 through the switch K. The first coil 13 and the second coil 11 are energized, so that the wind turbine is locked.

[0063] When the detection device 30 detects that the first brake base 101 and the second brake base 102 have been disassembled, it can transmit the disassembly signal to the brake controller 40. The brake controller 40 generates a disconnection control signal based on the disassembly signal and transmits the disconnection control signal to the switch K and / or the power supply 20. The power supply 20 is de-energized under the control of the disconnection control signal, and the switch K is opened under the control of the disconnection control signal. Therefore, the first coil 13 and the second coil 11 are de-energized, and there is no force between the first coil 13 and the second coil 11, so the wind turbine can rotate.

[0064] Specifically, the brake controller 40 can be an electronic device. The electronic device according to an embodiment of this application will be described below with reference to the figures. Figure 8 The diagram shown is a structural schematic of an electronic device provided in an embodiment of this application.

[0065] like Figure 8 As shown, the electronic device 600 includes one or more processors 601 and memory 602.

[0066] The processor 601 may be a central processing unit (CPU) or other form of processing unit with information processing and / or information execution capabilities, and may control other components in the electronic device 600 to perform desired functions.

[0067] The memory 601 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program information may be stored on the computer-readable storage medium, and the processor 601 may run the program information to implement the steps performed by the brake controller described above.

[0068] In one example, the electronic device 600 may also include an input device 603 and an output device 604, which are interconnected via a bus system and / or other forms of connection mechanism (not shown).

[0069] The input device 603 may include, for example, a keyboard, a mouse, etc.

[0070] The output device 604 can output various information to the outside. The output device 604 may include, for example, a display, a communication network, and remote output devices connected thereto.

[0071] Of course, for the sake of simplicity, Figure 8 Only some of the components of the electronic device 600 relevant to this application are shown in this illustration; components such as buses, input / output interfaces, etc., are omitted. In addition, the electronic device 600 may include any other suitable components depending on the specific application.

[0072] Exemplary wind turbine generator set

[0073] As a third aspect of this application, this application also provides a wind turbine generator set, including the aforementioned non-contact braking system.

[0074] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0075] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0076] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. Such disassembly and / or recombination should be considered as equivalent to the present application.

[0077] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features of the invention herein.

[0078] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Any modifications or equivalent substitutions made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A non-contact braking device, suitable for wind turbines, characterized in that, include: Brake base (10); Brake shaft (12) is disposed in the brake base (10); A plurality of first coils (13) are disposed on the brake shaft (12); and Multiple second coils (11) are disposed within the brake base (10); The second coil (11) is disposed between two adjacent first coils (13); and the first coil (13) and the second coil (11) are wound in the same direction. The boundary of the projection of the second coil (11) on the circumferential surface of the brake shaft (12) contacts but does not overlap with the boundary of the projection of the two adjacent first coils (13) on the circumferential surface of the brake shaft (12); When the wind turbine needs to be braked, the first coil (13) and the second coil (11) are energized; when the wind turbine needs to be unlocked, the energization of the first coil (13) and the second coil (11) is disconnected.

2. The non-contact braking device according to claim 1, characterized in that, The brake base (10) includes: First brake base (101); and A second brake base (102) is detachably connected to the first brake base (101).

3. The non-contact braking device according to claim 1, characterized in that, Multiple first coils (13) are evenly distributed circumferentially along the brake shaft (12).

4. The non-contact braking device according to claim 1, characterized in that, Multiple second coils (11) are evenly distributed along the inner side of the brake base (10).

5. The non-contact braking device according to claim 1, characterized in that, The number of the first coil (13) is equal to the number of the second coil (11).

6. The non-contact braking device according to claim 5, characterized in that, The number of the first coil (13) and the number of the second coil (11) are both even.

7. A non-contact braking system, characterized in that, include: The non-contact braking device (1) according to any one of claims 1-6; Power supply (20); Switch K, one end of which is electrically connected to the power supply (20), and the other end of which is connected to the energized ends of the first coil (13) and the second coil (11) respectively; A detection device (30) is configured to detect whether the non-contact braking device (1) needs to operate; as well as Brake controller (40); The brake controller (40) is communicatively connected to the detection device (30) and the control terminal of the switch K. The brake controller (40) is configured to generate a control signal when the non-contact braking device is working, as transmitted by the detection device (30). The control signal is used to control whether the first coil (13) and the second coil (11) are both energized.

8. The non-contact braking system according to claim 7, characterized in that, The brake base (10) includes: a first brake base (101); and a second brake base (102) detachably connected to the first brake base (101). The detection device (30) is used to detect whether the first brake base (101) and the second brake base (102) are connected; The brake controller (40) is configured to generate the control signal based on the signal transmitted by the detection device (30) indicating whether the first brake base (101) and the second brake base (102) are connected.

9. A wind turbine generator set, characterized in that, include: The non-contact braking system as described in claim 7 or 8.

Images