Integrated control cabinet structure of offshore wind power variable pitch system

Abstract

The utility model discloses an integrated type control cabinet structure of offshore wind power variable pitch system, including the cabinet body, the cabinet body is installed in offshore wind power variable pitch system and is close to the main shaft side, the cross section of cabinet body is similar to triangle, the inside of cabinet body is equipped with a plurality of baffle, the inside of cabinet body is formed with a plurality of cavities through baffle, be equipped with a plurality of wiring grooves in the cavity and have control module, drive module and power module, be connected through power cable and signal cable between control module, drive module and power module, power cable and signal cable are arranged in every wiring groove respectively alone, the utility model discloses can effectively utilize cabinet body space, can accurate positioning when maintaining, reduce operation and maintenance time, and the cabinet body is installed in the main shaft side, can be wired and routine maintenance, reduce downtime maintenance time, reduce exposed power cable and signal cable simultaneously, avoid cable abrasion during operation, effectively reduce the risk that cabinet body suffers thunderbolt.

Description

Technical Field

[0001] This utility model relates to the technical field of wind power pitch system control cabinets, and in particular to an integrated control cabinet structure for an offshore wind power pitch system. Background Technology

[0002] The pitch control system of offshore wind turbines controls the speed and power of the wind turbine by adjusting the blade angle. In the industry, three cabinets are commonly used to house electrical components such as control modules, drive modules, and power modules. However, the three-cabinet pitch control system has the following drawbacks: (1) The axle boxes are located on the hub web, which requires more consideration for installation and maintenance; (2) Wiring and maintenance are inconvenient: the layout of the three cabinets results in wiring connections between the cabinets, which requires wiring between the hubs, which is prone to wear. Moreover, the wiring is distributed on the hub web, which leads to an increase in cables, making fault diagnosis difficult and maintenance inefficient; (3) The cable connections between the three cabinets make offshore wind turbines more susceptible to lightning interference on the vast sea surface. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing an integrated control cabinet structure for an offshore wind power pitch system. This structure effectively utilizes cabinet space, is divided by partitions, and allows for accurate positioning during maintenance, reducing operation and maintenance time. Furthermore, the cabinet is installed on the main shaft side, eliminating the need for additional impeller rotation. This allows the impeller to be in a positive Y-position for wiring and routine maintenance, reducing downtime for repairs. It also reduces exposed power and signal cables, preventing interference from cable swinging or wear during operation, and further reduces the risk of lightning strikes to the cabinet.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: an integrated control cabinet structure for an offshore wind power pitch system, comprising a cabinet body installed inside the offshore wind power pitch system and close to the main shaft side. The cross-section of the cabinet body is approximately triangular. The cabinet body has multiple partitions inside, and multiple cavities are formed inside the cabinet body through the partitions. Multiple cable trays are provided in the cavities, and control modules, drive modules, and power modules are integrated therein. The control modules, drive modules, and power modules are connected by power cables and signal cables, and the power cables and signal cables are arranged separately in each cable tray.

[0005] Furthermore, the cabinet is equipped with a support beam inside, and the support beam is located near the top of the cabinet.

[0006] Furthermore, a detachable wiring door is provided above the support beam.

[0007] Furthermore, the cabinet frame has a long side and a short side, with the drive module positioned near the long side and the power module positioned near the short side.

[0008] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0009] 1. This utility model has the advantages of convenient wiring and maintenance: the partitioned cable tray realizes the isolation of power cables and signal cables, reducing signal crosstalk; the detachable wiring door makes the wiring neat and tidy, and the fault point can be quickly located during maintenance, shortening the repair time by more than 50%.

[0010] 2. This utility model can reduce failures: The integrated cabinet design effectively reduces the number of cables between cabinets, avoids signal interference caused by cable swinging or cable wear during operation, and reduces the number of cable connections between cabinets, effectively reducing the risk of the cabinet being struck by lightning.

[0011] 3. This utility model can save costs: while improving reliability, it saves materials and costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the installation structure of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] Example 1

[0018] See Figures 1 to 3 As shown, the integrated control cabinet structure of the offshore wind power pitch system provided in this embodiment includes cabinet 1.

[0019] The cabinet 1 is installed inside the offshore wind power pitch system a and close to the main shaft. The cross-section of the cabinet 1 is roughly triangular, and the frame of the cabinet 1 has three long sides 1a and three short sides 1b. The interior of the cabinet 1 has six partitions 101, and the interior of the cabinet 1 is formed by nine partitions 101 into ten cavities 102. The cavity 102 in the middle of the cabinet 1 has multiple cable trays 103. The other cavities 102 are respectively equipped with control modules 104, drive modules 105 and power modules 106. The drive modules 105 and power modules 106 need to be arranged according to their size, so that the drive modules 105 are placed close to the long side and the power modules 106 are placed close to the short side. The control modules 104, drive modules 105 and power modules 106 are connected by power cables 107 and signal cables 108. The power cables 107 and signal cables 108 are arranged separately in each cable tray 103.

[0020] The cabinet 1 has two support beams 109 inside for supporting the detachable wiring doors. The two support beams 109 are connected in a T-shape and are installed near the top of the cabinet 1, dividing the top of the cabinet 1 into three parts. Three detachable wiring doors 110 are provided above the support beams 1.

[0021] The integrated cabinet design of this utility model reduces the cables between the cabinets of the offshore wind turbine pitch system, thereby reducing the wiring and related components inside the hub and avoiding the risk of them falling during operation. At the same time, it solves the problem of difficult maintenance caused by the cabinets being distributed on the hub web. It is suitable for the integrated control of wind turbine pitch systems.

[0022] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. An integrated control cabinet structure for an offshore wind power pitch control system, characterized in that: The system includes a cabinet installed within the offshore wind power pitch control system and close to the main shaft. The cabinet has a triangular cross-section and multiple partitions inside. These partitions create multiple cavities within the cabinet, each containing multiple cable trays and integrating a control module, a drive module, and a power module. These modules are connected via power cables and signal cables, which are individually arranged within each cable tray.

2. The integrated control cabinet structure of an offshore wind power pitch control system according to claim 1, characterized in that: The cabinet has internal support beams, which are located near the top of the cabinet.

3. The integrated control cabinet structure of an offshore wind power pitch control system according to claim 2, characterized in that: A detachable wiring door is provided above the support beam.

4. The integrated control cabinet structure of an offshore wind power pitch control system according to claim 1, characterized in that: The cabinet frame has a long side and a short side, with the drive module located near the long side and the power module located near the short side.

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