A water-cooled power cabinet for a static var generator
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-08-14
AI Technical Summary
[0002]静止无功发生器(SVG)已经大量投入使用，静止无功发生器的核心是由多个串联的功率模块组成，功率模块的核心器件是由绝缘栅双极型晶体管(IGBT)及电容器组成的自换相桥式电路，由于IGBT工作时会有导通损耗和开关损耗，产生大量的热量，需要进行散热，目前采用风冷技术比较多，但是风冷散热技术具有结构简单，成本低，但是需要做外风道，或增加空调设备，而采用水冷技术代替风冷技术，要考虑维修的便捷性，由于水冷系统维修模块时需要放水，导致维修时间延长，为此，现提出一种静止无功发生器水冷功率柜
[0006]与现有技术相比，本实用新型的有益效果是：本实用新型提供了一种静止无功发生器水冷功率柜，具有结构紧凑、安装方便、散热效果好、容量大以及维修方便的优点。
Smart Images
Figure CN224637634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution and supply technology, specifically to a water-cooled power cabinet for a static var generator. Background Technology
[0002] Static var generators (SVG) are widely used. The core of an SVG consists of multiple power modules connected in series. The core component of each power module is a self-commutated bridge circuit composed of insulated gate bipolar transistors (IGBTs) and capacitors. Because IGBTs generate a lot of heat during operation due to conduction and switching losses, heat dissipation is required. Currently, air cooling technology is commonly used. However, while air cooling technology is simple in structure and low in cost, it requires external air ducts or additional air conditioning equipment. Water cooling technology is an alternative to air cooling technology. However, the ease of maintenance must be considered. Since water cooling systems require draining water when maintaining modules, maintenance time is extended. Therefore, a water-cooled power cabinet for SVG is proposed. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by proposing a water-cooled power cabinet for a static var generator to solve the aforementioned problems.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a cabinet and uprights; the cabinet is provided with two uprights, one at the front and one at the back; the cabinet is provided with two doors, one at the front and one at the back. It also includes: The water-cooled power module consists of twelve modules arranged in a three-dimensional matrix within the cabinet, and the modules are fixedly connected to the uprights. The module bracket includes insulating crossbeams and insulating guide rails; there are several insulating crossbeams, which are fixed to the cabinet at the top and bottom respectively, and the insulating crossbeams are respectively located on the front and rear sides of the water-cooled power modules; there are several insulating guide rails, which are respectively connected to the bottom of the water-cooled power modules. The water-cooled piping system includes an inlet pipe, a return pipe, a first module water pipe, and a second module water pipe. The inlet pipe is located at the bottom of the cabinet, and the return pipe is located at the top of the cabinet. The first module water pipe is connected to the water-cooled power modules located at the lower right front and upper right front sides. The upper first module water pipe is connected to the return pipe, and the lower first module water pipe is connected to the inlet pipe. The water-cooled power modules are connected in series through several second module water pipes.
[0005] Preferably, the AC outputs of the water-cooled power module are arranged with leads on the left and right sides.
[0006] Compared with the prior art, the beneficial effects of this utility model are: this utility model provides a water-cooled power cabinet for a static var generator, which has the advantages of compact structure, convenient installation, good heat dissipation, large capacity and convenient maintenance. Attached Figure Description
[0007] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0008] Figure 1 This is a schematic diagram of the structure of this utility model.
[0009] Figure 2 yes Figure 1 Side view.
[0010] Figure 3 yes Figure 1 Top view.
[0011] Explanation of reference numerals in the attached figures: Cabinet 1, Door 1-1, Column 2, Water-cooled power module 3, Module bracket 4, Insulated beam 4-1, Insulated guide rail 4-2, Water-cooled pipe 5, Inlet pipe 5-1, Outlet pipe 5-2, Module 1 water pipe 5-3, Module 2 water pipe 5-4. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings.
[0013] Please see Figure 1-3 This embodiment includes a cabinet 1 and uprights 2; the cabinet 1 has two uprights 2 inside, one at the front and one at the back; the cabinet 1 has two doors 1-1 on the front and one at the back. It also includes: The water-cooled power module 3 consists of twelve units, arranged in a three-dimensional matrix within the cabinet 1. The water-cooled power module 3 is fixedly connected to the column 2. The AC output of the water-cooled power module 3 is arranged with left and right leads. The module support 4 includes an insulating crossbeam 4-1 and an insulating guide rail 4-2. There are several insulating crossbeams 4-1, which are fixed to the cabinet 1 at the top and bottom respectively. The insulating crossbeams 4-1 are respectively located on the front and rear sides of the water-cooled power modules 3. There are several insulating guide rails 4-2, which are respectively connected to the bottom of the water-cooled power modules 3. The water-cooled pipe 5 includes an inlet pipe 5-1, a return pipe 5-2, a first module water pipe 5-3, and a second module water pipe 5-4. The inlet pipe 5-1 is located at the lower part of the cabinet 1, and the return pipe 5-2 is located at the upper part of the cabinet 1. The first module water pipe 5-3 is connected to the water-cooled power module 3 located on the lower right front side and the upper right front side. The upper first module water pipe 5-3 is connected to the return pipe 5-2, and the lower first module water pipe 5-3 is connected to the inlet pipe 5-1. The water-cooled power module 3 is connected in series through several second module water pipes 5-4.
[0014] The working principle of this specific implementation method is as follows: First, fix the column 2 to the cabinet 1 with bolts. Then, fix the insulating beam 4-1 to the column 2 with bolts. Next, fix the insulating guide rail 4-2 to the insulating beam 4-1 with bolts. In this way, the basic frame of the cabinet 1 is assembled. Finally, place the twelve water-cooled power modules 3 on the insulating guide rail 4-2. The water-cooled power modules 3 are arranged in three layers and two rows, with four modules in each layer, thus completing the installation of the water-cooled power modules 3. Connect the inlet pipe 5-1, the return pipe 5-2, the first module water pipe 5-3, and the second module water pipe 5-4 to the water-cooled power modules 3 respectively. The upper first module water pipe 5-3 is connected to the return pipe 5-2, and the lower first module water pipe 5-3 is connected to the inlet pipe 5-1. The water-cooled power modules 3 are connected in series through several second module water pipes 5-4, making the visible part of the water-cooled power modules 3 easy to disassemble. The water-cooled power modules 3 can be repaired without draining water.
[0015] The beneficial effects of this specific embodiment after adopting the above structure are as follows: 1. Water-cooled heat dissipation modules have the advantages of high heat dissipation efficiency, can be used in a sealed indoor environment, and are free from dust affecting the equipment. The equipment structure is more compact, reducing the footprint. 2. The water-cooled heat dissipation module is easy to maintain. The visible part of the water-cooled power module 3 is easy to disassemble. The upper No. 1 module water pipe 5-3 is connected to the return water pipe 5-2, and the lower No. 1 module water pipe 5-3 is connected to the inlet water pipe 5-1. The water-cooled power module 3 is connected in series through several No. 2 module water pipes 5-4. The water-cooled power module 3 can be maintained without draining water.
[0016] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A water-cooled power cabinet for a static var generator, comprising a cabinet (1) and columns (2); the cabinet (1) is provided with two columns (2) at the front and back; the cabinet (1) is provided with two doors (1-1) at the front and back. Its features are, It also includes: Water-cooled power module (3), the number of water-cooled power modules (3) is twelve, the water-cooled power modules (3) are arranged in a three-dimensional matrix in the cabinet (1), and the water-cooled power modules (3) are fixedly connected to the column (2); The module support (4) includes an insulating crossbeam (4-1) and an insulating guide rail (4-2); there are several insulating crossbeams (4-1), which are fixed on the cabinet (1) at the top and bottom respectively, and the insulating crossbeams (4-1) are respectively located on the front and rear sides of the water-cooled power module (3); there are several insulating guide rails (4-2), which are respectively connected to the bottom of the water-cooled power module (3); The water-cooled pipe (5) includes an inlet pipe (5-1), a return pipe (5-2), a first module water pipe (5-3), and a second module water pipe (5-4). The inlet pipe (5-1) is located at the lower part of the cabinet (1), and the return pipe (5-2) is located at the upper part of the cabinet (1). The first module water pipe (5-3) is connected to the water-cooled power module (3) located on the lower right front side and the upper right front side. The upper first module water pipe (5-3) is connected to the return pipe (5-2), and the lower first module water pipe (5-3) is connected to the inlet pipe (5-1). The water-cooled power module (3) is connected in series through several second module water pipes (5-4).
2. The water-cooled power cabinet for a static var generator according to claim 1, characterized in that: The AC output of the water-cooled power module (3) is set to lead out on the left and right.