CN209767368U

CN209767368U - Wind power converter and power electronic equipment

Info

Publication number: CN209767368U
Application number: CN201920135575.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: SHENZHEN CHANGHAO MECHANICAL AND ELECTRICAL Co Ltd
Current assignee: SHENZHEN CHANGHAO MECHANICAL AND ELECTRICAL Co Ltd
Priority date: 2019-01-26
Filing date: 2019-01-26
Publication date: 2019-12-10
Anticipated expiration: 2029-01-26

Abstract

The application discloses wind power converter and power electronic equipment, wind power converter includes main control unit and a N wind energy single machine converter, main control unit with a N wind energy single machine converter passes through the communication cable and connects. The wind energy single-machine converter is designed in a combined mode through a plurality of wind energy single-machine converters, and the plurality of wind energy single-machine converters are connected with the main controller through communication cables; the combination of a plurality of wind energy single-machine converters can meet the requirement of high-power application, can be flexibly distributed in the wind turbine tower, and fully utilizes the space of the wind turbine tower.

Description

Wind power converter and power electronic equipment

Technical Field

The application relates to the technical field of power electronics, in particular to a wind power converter and power electronic equipment.

Background

The converter is the main electrical equipment in the wind power generation equipment, and the electric energy generated by the wind power generator is rectified and inverted by the converter and then is merged into the power grid.

The existing converter design is designed according to actual power, is large in size (according to statistics, the minimum size of the length of the converter is 2.4 meters), and occupies a large area when being placed inside a fan tower. Limited by the size of the wind turbine tower, the converter is generally placed in the wind turbine tower mainly in the following two ways: one is that the converter is arranged right opposite to the tower door (as shown in fig. 1), and the other is that the converter is arranged perpendicular to the tower door and is arranged on one side of the tower door (as shown in fig. 2).

No matter which kind of above-mentioned mode of putting, it is relatively extravagant on the spatial layout of fan tower section of thick bamboo.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application aims to provide a wind power converter and power electronic equipment to solve the problem that the space layout of a wind turbine tower is wasted due to the large floor area of the wind turbine tower placed inside the wind turbine tower due to the integrated design of the existing converter and a single machine.

The technical scheme adopted by the application for solving the technical problems is as follows:

According to an aspect of the application, a wind power converter is provided, the wind power converter comprises a main controller and N wind energy single-machine converters, and the main controller is connected with the N wind energy single-machine converters through a communication cable.

Optionally, the N wind energy single-machine converters are placed in the fan tower cylinder around the wall of the tower cylinder.

Optionally, the N wind energy single-machine converters are arranged in a straight row on the inner surface of the fan tower cylinder relative to the tower cylinder door.

Optionally, the N wind energy single-machine converters are divided into two rows and placed back to back in the fan tower barrel and facing the tower barrel door.

Optionally, the N wind energy single-machine converters are divided into two rows in the fan tower cylinder, and are oppositely placed on two sides of the tower cylinder door in front.

Optionally, the N wind energy single-machine converters are placed in the fan tower in a surrounding manner in such a manner that the back faces the central point.

According to another aspect of the application, a power electronic device is provided, which comprises the wind power converter.

The wind power converter and the power electronic equipment are combined through the plurality of wind energy single-machine converters, and the plurality of wind energy single-machine converters are connected with the main controller through communication cables; the combination of a plurality of wind energy single-machine converters can meet the requirement of high-power application, can be flexibly distributed in the wind turbine tower, and fully utilizes the space of the wind turbine tower.

Drawings

Fig. 1 is a schematic view of a placement structure of a conventional wind power converter in a fan tower;

FIG. 2 is a schematic view of another arrangement structure of a conventional wind power converter in a wind turbine tower;

FIG. 3 is a schematic structural diagram of a wind power converter according to an embodiment of the present application;

Fig. 4 to 8 are schematic layout structures of a wind power converter in a wind turbine tower according to an embodiment of the present application.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer and clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

First embodiment

As shown in fig. 3, a first embodiment of the present application provides a wind power converter, where the wind power converter includes a main controller 11 and N wind energy single-machine converters 12, the main controller 11 is in communication connection with the N wind energy single-machine converters 12 through an optical fiber or a network cable, and in other embodiments, the main controller 11 is in communication connection with the N wind energy single-machine converters 12 through other communication media.

in this embodiment, the N wind energy single-machine converters 12 are uniformly controlled and coordinated by the main controller 11, so that multiple machines can run consistently, and performance consistent with that of an integrated whole machine is achieved. In addition, the control system structure can also realize the fault redundancy of the unit machine.

n is an integer greater than 1, and the specific number is not limited herein.

In one embodiment, the N wind power standalone converters 12 are placed around the tower wall 201 within the wind turbine tower 20.

As shown in fig. 4, 6 wind energy single-machine converters 12 are arranged around the tower wall 201 in the wind turbine tower 20.

In one embodiment, the N wind power standalone converters 12 are arranged in a straight row inside the wind turbine tower 20 facing the tower door 202.

As shown in fig. 5, 4 wind energy single-machine converters 12 are arranged in a straight row inside the wind turbine tower 20 facing the tower door 202.

In one embodiment, the N stand-alone wind power converters 12 are arranged in two rows facing the tower door 202 inside the wind turbine tower 20 and back to back.

As shown in fig. 6, 8 wind energy single-machine converters 12 are divided into two rows, and each row has 4 wind energy single-machine converters 12. The two rows of wind energy single-machine converters 12 are arranged back to back in the fan tower 20 facing the tower door 202.

In one embodiment, the N wind power single-machine converters 12 are divided into two rows in the wind turbine tower 20 and are oppositely arranged on two sides of the tower door 202.

As shown in fig. 7, 8 wind energy single-machine current transformers 12 are divided into two rows, and each row has 4 wind energy single-machine current transformers 12. The two rows of wind energy single-machine converters 12 are oppositely arranged on two sides of the tower door 202 in the fan tower 20.

In another embodiment, the N wind energy single-machine converters 12 are arranged around the wind turbine tower 20 with their back surfaces facing the center point.

As shown in fig. 8, 6 wind energy single-machine converters 12 are placed around the wind turbine tower 20 with the back surface facing the center point a.

The wind power converter of the embodiment of the application is designed in a combined mode through a plurality of wind energy single-machine converters, and the plurality of wind energy single-machine converters are connected with the main controller through communication cables; the combination of a plurality of wind energy single-machine converters can meet the requirement of high-power application, can be flexibly distributed in the wind turbine tower, and fully utilizes the space of the wind turbine tower.

Second embodiment

The second embodiment of the application provides a power electronic device, which comprises the wind power converter of the first embodiment. The wind power converter can refer to the content described in the first embodiment, and is not described herein again.

The power electronic equipment provided by the embodiment of the application is designed by combining a plurality of wind energy single-machine converters, and the plurality of wind energy single-machine converters are connected with the main controller through communication cables; the combination of a plurality of wind energy single-machine converters can meet the requirement of high-power application, can be flexibly distributed in the wind turbine tower, and fully utilizes the space of the wind turbine tower.

The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and are not intended to limit the scope of the claims of the application accordingly. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present application are intended to be within the scope of the claims of the present application.

Claims

1. The wind power converter is characterized by comprising a main controller and N wind energy single-machine converters, wherein the main controller is connected with the N wind energy single-machine converters through communication cables.

2. The wind power converter according to claim 1, wherein the N wind energy single-machine converters are arranged around the tower wall in the wind turbine tower.

3. The wind power converter according to claim 1, wherein the N wind energy single-machine converters are arranged in a straight row with respect to the tower door inside the wind turbine tower.

4. The wind power converter according to claim 1, wherein the N wind energy single-machine converters are arranged in two rows facing a tower door inside the wind turbine tower and arranged back to back.

5. The wind power converter according to claim 1, wherein the N wind energy single-machine converters are divided into two rows in the wind turbine tower and are oppositely arranged on two sides of the tower door in front.

6. The wind power converter according to claim 1, wherein the N wind energy single-machine converters are arranged in a surrounding manner in a manner that the back surface of the wind energy single-machine converter faces the central point in the wind turbine tower.

7. A power electronic device, characterized in that it comprises a wind power converter according to any of claims 1-6.