Solid insulation lead structure with compact structure for offshore wind power high-voltage collecting ring

Abstract

The invention provides a solid insulation lead structure with a compact structure for an offshore wind power high-voltage collecting ring, which comprises a rotor rotating shaft, a solid insulation material is poured and molded outside the rotor rotating shaft, and three-phase conductive copper rings are assembled in the solid insulation material at intervals. The three-phase conductive copper ring is connected with the three quick-plug high-voltage inner cone sockets through the high-voltage conductive connecting wire, the high-voltage conductive connecting wire is pre-embedded in the solid insulating material, solid insulation is adopted among the three phases, the three quick-plug high-voltage inner cone sockets form a 120-degree symmetrical structure along a rotating shaft of the rotating rotor, and the volume of a finished product is limited within 1660mm * 1660mm * 1380mm; the solid insulating material is used for replacing traditional air isolation, and the quick-plug type high-voltage inner cone socket is connected with the high-voltage conductive connecting wire, so that the size of the collector ring device and the field assembly and connection difficulty are effectively reduced, and the installation speed is increased.

Description

Technical Field

[0001] The invention relates to the technical field of deep sea wind turbines, and in particular to a compact solid insulation lead structure for offshore wind power high voltage collector rings. Background Art

[0002] At present, deep-sea wind turbines are moored and float on the sea surface. Pile foundations cannot be used. However, when the head of the turbine is pushed by the wind direction, the high-voltage cables are easily twisted together. Therefore, deep-sea wind turbines need to actively rotate the entire generator or actively release the cable when the wind is weak. The use of a rotating conductive device makes the follow-up release a reality, without the need for complex control and meteorological conditions and the risk of accidental tower collapse. The conventional technology of rotating conductive devices at home and abroad uses air insulation. In order to ensure the minimum discharge gap and creepage distance at a voltage of 35kV, it is necessary to leave enough space between the three-phase electrodes. This results in the size of conventional rotating conductive devices being generally around 10 meters, occupying a large space, making the equipment inconvenient to install, and the foreign technology is monopolized, the cost is extremely high, and the connection of conventional high-voltage cables requires more complex design and process.

[0003] Therefore, there is an urgent need for a compact solid insulated lead structure for offshore wind power high-voltage collector rings, which can solve the problem that the existing deep-sea wind turbine rotating conductive device is large in size and inconvenient to install due to the use of air insulation, and the high-voltage cable connection process is complicated and prone to twisting. Summary of the invention

[0004] The purpose of the present invention is to provide a compact solid insulated lead structure for offshore wind power high-voltage collector rings, so as to solve the problems that the rotating conductive device of the above-mentioned existing deep-sea floating wind turbine is large in size and inconvenient to install due to the use of air insulation, and the high-voltage cable connection process is complicated and prone to twisting.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a compact solid insulation lead structure for offshore wind power high-voltage collector rings, comprising a rotor shaft, the outside of the rotor shaft is cast with solid insulation material, three-phase conductive copper rings are installed at intervals inside the solid insulation material, the three-phase conductive copper rings are connected to three quick-plug high-voltage inner cone sockets through high-voltage conductive connecting wires, the high-voltage conductive connecting wires are pre-buried in the solid insulation material, solid insulation is used between the three phases, the three quick-plug high-voltage inner cone sockets form a 120° symmetrical structure along the rotating rotor shaft, and the volume of the finished product is limited to 1660mm*1660mm*1380mm.

[0007] Through the above technical scheme, solid insulating materials are used to replace traditional air isolation, and a casting molding method is adopted, so that the insulation structure process is simple, the assembly accuracy is higher, the high-voltage conductive connecting wire is pre-buried, and the three quick-plug high-voltage inner cone sockets are axially symmetrically and evenly spaced, making the structure of the device more concise and compact. The quick-plug high-voltage inner cone socket is connected to the high-voltage conductive connecting wire, which effectively reduces the volume of the collector ring device and the difficulty of on-site assembly and connection, and improves the installation speed.

[0008] Preferably, a bearing mounting seat is pre-embedded in the bottom of the solid insulating material.

[0009] The above technical solution facilitates the installation of the bearing.

[0010] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0011] The present invention provides a compact solid insulation lead structure for offshore wind power high-voltage collector rings, including a rotor shaft, the outside of the rotor shaft is cast with solid insulation material, three-phase conductive copper rings are installed at intervals inside the solid insulation material, the three-phase conductive copper rings are connected to three quick-plug high-voltage inner cone sockets through high-voltage conductive connecting wires, the high-voltage conductive connecting wires are pre-buried in the solid insulation material, solid insulation is used between the three phases, the three quick-plug high-voltage inner cone sockets form a 120° symmetrical structure along the rotating rotor shaft, and the volume of the finished product is limited to 1660mm*1660mm*1380mm; solid insulation material is used to replace traditional air isolation, and quick-plug high-voltage inner cone sockets are used to connect with the high-voltage conductive connecting wires, which effectively reduces the volume of the collector ring device and the difficulty of on-site assembly and connection, and improves the installation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 A front view of a compact solid insulated lead structure for an offshore wind power high voltage collector ring provided by the present invention;

[0014] Figure 2 A top view of a compact solid insulated lead structure for an offshore wind power high voltage collector ring provided by the present invention;

[0015] Figure 3 A bottom view of a compact solid insulated lead structure for an offshore wind power high voltage collector ring provided by the present invention;

[0016] In the figure: 1: rotor shaft, 2: solid insulation material, 3: three-phase conductive copper ring, 4: high-voltage conductive connecting wire, 5: quick-plug high-voltage inner cone socket, 6: bearing mounting seat. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The object of the present invention is to provide a compact solid insulated lead structure for an offshore wind power high voltage collector ring, so as to solve the problems existing in the prior art.

[0023] Embodiment 1:

[0024] This embodiment provides a compact solid insulated lead structure for offshore wind power high voltage collector ring, such as Figure 1-3 As shown, it includes a rotor shaft, the outside of the rotor shaft is cast with solid insulating material, the solid insulating material is used to replace the traditional air isolation, and the casting method is adopted, so that the insulation structure process is simple and the assembly accuracy is higher. The solid insulating material is equipped with three-phase conductive copper rings at intervals, and the three-phase conductive copper rings are connected to three quick-plug high-voltage inner cone sockets through high-voltage conductive connecting wires. The high-voltage conductive connecting wires are pre-buried in the solid insulating material, and solid insulation is used between the three phases. The three quick-plug high-voltage inner cone sockets form a 120° symmetrical structure along the rotating rotor shaft, and a bearing mounting seat is pre-buried at the bottom of the solid insulating material. The high-voltage conductive connecting wire is pre-buried, and the three quick-plug high-voltage inner cone sockets are axially symmetrically arranged at equal intervals, so that the structure of the device is more concise and compact, and the volume of the finished product is limited to 1660mm*1660mm*1380mm. The quick-plug high-voltage inner cone sockets are connected to the high-voltage conductive connecting wires, which effectively reduces the volume of the collector ring device and the difficulty of on-site assembly and connection, and improves the installation speed.

[0025] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A compact solid insulated lead structure for offshore wind power high voltage collector ring, characterized in that: The invention comprises a rotor shaft (1), the outside of which is cast with a solid insulating material (2), three-phase conductive copper rings (3) are installed at intervals inside the solid insulating material (2), the three-phase conductive copper rings (3) are connected to three quick-insertion high-voltage inner cone sockets (5) via high-voltage conductive connecting wires (4), the high-voltage conductive connecting wires (4) are pre-buried inside the solid insulating material (2), solid insulation is used between the three phases, the three quick-insertion high-voltage inner cone sockets (5) form a 120° symmetrical structure along the rotating rotor shaft (1), and the volume of the finished product is limited to 1660mm*1660mm*1380mm.

2. The compact solid insulated lead structure for offshore wind power high voltage collector ring according to claim 1 is characterized in that: A bearing mounting seat (6) is pre-buried at the bottom of the solid insulating material (2).

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