Container-based static synchronous phase modifier system

Abstract

The invention discloses a static synchronous phase modifier system based on a container, and belongs to the technical field of new energy power electronics. The device comprises a valve group mounted in a box body, a wall bushing is arranged at one end of the box body, the interior of one end of the wall bushing is connected with the valve group, and the exterior of one end of the wall bushing is connected with an outdoor primary power system; the valve group comprises a plurality of valve stacks which are sequentially connected in series through copper bars, and each valve stack comprises a plurality of cluster stacks; based on container type equipment, the device is compact in structure, can be transported to a project site as a whole and can be directly stored outdoors, the occupied area is small, installation is flexible, the number of needed matched infrastructures is small, and the site construction amount can be effectively reduced.

Description

Technical Field

[0001] The invention relates to a static synchronous phase condenser system based on a container, belonging to the technical field of new energy power electronics. Background Art

[0002] As the proportion of new energy continues to increase, the operation of the power system is facing the characteristics of increasing difficulty in balancing power and electricity and changes in the stability of the power grid. The static synchronous condenser system is a new type of dynamic reactive power compensation system based on grid-type control technology to solve the problem of power grid oscillation.

[0003] The current static synchronous condenser system is installed indoors and requires the construction of a house to house it, which results in a long construction period, a large footprint, and poor solution flexibility, which is not conducive to the promotion and application of the static synchronous condenser system. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a container-based static synchronous condenser system to solve the problems of the existing static synchronous condenser system occupying a large area and having poor solution flexibility; In order to achieve the above purpose / solve the above technical problems, the present invention is implemented by adopting the following technical solutions: A static synchronous phase condenser system based on a container, comprising a valve group installed in a container, one end of the container is provided with a wall bushing, the interior of one end of the wall bushing is connected to the valve group, and the exterior is connected to an outdoor primary power system; The valve group includes a plurality of valve stacks connected in series in sequence through copper bars, and the valve stack includes a plurality of cluster stacks.

[0005] Optionally, each layer of the plurality of clusters and the bottom of the box are connected via an insulating base, the insulating base is an I-shaped structure, and a protruding structure is provided on the reinforcing ribs of the insulating base.

[0006] Optionally, maintenance passages are provided on both sides of the box body, and manual hoist slide rails are provided on the tops of the maintenance passages.

[0007] Optionally, the cluster includes a filter module, a supercapacitor disposed on an upper layer of the mounting bracket, and a high-voltage box and an H-bridge module disposed on a lower layer of the mounting bracket; The filter module is electrically connected to the high voltage box and the H-bridge module respectively.

[0008] Optionally, the mounting bracket is provided with a guide for pushing the supercapacitor and the H-bridge module into the mounting bracket, and the mounting bracket is provided with a column for separating the installation areas of the supercapacitor, the filter module, the high-voltage box and the H-bridge module.

[0009] Optionally, an industrial air conditioner is provided at the other end of the box.

[0010] Optionally, a spoiler fan is provided on the top of the box.

[0011] Optionally, a water pipe for cooling is arranged on the outside of the valve stack.

[0012] Optionally, a cooling pipeline inlet and outlet are provided on one side of the bottom of the box body, and a cable inlet and outlet are provided on the other side of the bottom.

[0013] Optionally, a water-cooling container is further included, wherein the water-cooling container is communicatively connected to the box body, and the water-cooling container is used to provide a cooling body for the water pipes in the box body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The container-type equipment of the present invention has a compact structure and can be transported to the project site as a whole and can be directly stored outdoors. It occupies a small area and is flexible to install. It requires less supporting infrastructure and can effectively reduce the amount of on-site construction. The valve stack of the present invention adopts an independent arrangement mode, which is more flexible and can meet the needs of sites of various shapes; In order to facilitate on-site maintenance of the module, a maintenance passage is reserved inside the box of the present invention, and a manual hoist slide rail is arranged on the top to facilitate daily inspection and replacement of accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the container structure of the present invention; Figure 2 It is a schematic diagram of the valve stack structure of the present invention; Figure 3 is a schematic diagram of the cluster structure of the present invention; Figure 4 is a schematic diagram of the mounting bracket of the present invention; Figure 5 is a top view of the mounting bracket of the present invention; In the figure, 1. wall bushing; 2. box body; 3. valve stack; 4. spoiler fan; 5. industrial air conditioner; 6. water pipe; 7. copper busbar; 8. cluster; 9. insulating base; 10. super capacitor; 11. mounting bracket; 12. filter module; 13. high-voltage box; 14. H-bridge module; 15. guide; 16 column; 17. maintenance channel; 18. manual hoist slide rail. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] like Figure 1 As shown, a static synchronous phase condenser system based on a container is disclosed, including a valve group installed in a box body 2, one end of the box body 2 is provided with a wall bushing 1, the interior of one end of the wall bushing 1 is connected to the valve group, and the outside is connected to an outdoor primary power system, and the other end of the box body 2 is provided with an industrial air conditioner 5; like Figure 2 and Figure 3 As shown, the valve group includes a plurality of valve stacks 3 connected in series in sequence through a copper bus 7, the valve stack 3 includes a plurality of clusters 8 stacked together, the cluster 8 includes a super capacitor 10 arranged on the upper layer of the mounting bracket 11 and a high-voltage box 13 and an H-bridge module 14 arranged on the lower layer of the mounting bracket 11; a filter module 12, and the filter module 12 is electrically connected to the high-voltage box 13 and the H-bridge module 14 respectively.

[0020] In the specific implementation process of this embodiment, each layer of the plurality of clusters 8 and the bottom of the box body 2 are connected through an insulating base 9. The insulating base 9 is an I-shaped structure, and a protrusion structure is provided on the reinforcing ribs of the insulating base. It is worth noting that the insulating base needs to be able to bear the weight of the entire valve stack mechanically, and at the same time needs to meet the creepage distance requirements from live equipment to the ground, and the overall height of the container cannot be too high. In summary, the cross-section of the insulating base is designed to add protrusions on the ribs on the basis of a conventional I-shaped structure, which can meet the above requirements.

[0021] In the specific implementation process of this embodiment, maintenance channels 17 are provided on both sides of the box body, and a manual hoist slide rail 18 is provided on the top of the maintenance channel. An maintenance channel is reserved inside and a manual hoist slide rail 18 is provided on the top to facilitate daily inspection and replacement of accessories. The outside of the box body 2 is a double-door structure to facilitate installation and maintenance.

[0022] like Figure 4-Figure 5 As shown, in the specific implementation process of this embodiment, the mounting bracket 11 is provided with a guide 15 for pushing the supercapacitor 10 and the H-bridge module 14 into the mounting bracket 11, and the mounting bracket is provided with a column 16 for separating the installation areas of the supercapacitor 10, the filter module 12, the high-voltage box 13 and the H-bridge module 14. In order to facilitate the maintenance of various modules and capacitors on site, the H-bridge module 14 and the supercapacitor 10 have their own areas, and the mounting bracket 11 is divided into areas, and a "J"-shaped profile is designed on both sides of each area, which serves as a guide 15 for pushing the H-bridge module 14 and the supercapacitor 10 into the mounting bracket 11, ensuring that the equipment can enter the mounting bracket 11 correctly and straightly. The arrangement of the H-bridge module 14 and the supercapacitor 10 takes into account the convenience of maintenance, and the heavier modules are placed in the low area and the lighter capacitors are placed in the high area.

[0023] like Figure 1 As shown, a turbulent fan 4 is provided on the top of the box body 2 to facilitate cooling the temperature inside the box body.

[0024] like Figure 2 As shown, a water pipe 6 for cooling is arranged on the outside of the valve stack. The water pipe is placed on the side, front and top of the valve stack, which will not affect the maintenance and replacement of the module. The water pipe and the external main water pipe are connected by a flexible joint, and the main water pipe and the valve cooling metal pipe are connected by a flange. The pipes in the entire container are arranged symmetrically in the width direction.

[0025] In this embodiment, a cooling pipe inlet and outlet (not shown in the figure) is provided on one side of the bottom of the box body 2, and a cable inlet and outlet (not shown in the figure) is provided on the other side of the bottom. This embodiment may also include a water-cooling container (not shown in the figure) for cooling the box body. The water-cooling container is communicatively connected to the box body 2, and the water-cooling container is used to provide a cooling body for the water pipes in the box body 2.

[0026] During installation, the internal electrical connection of the valve group container has been completed before shipment. When arriving at the site, the valve group can be connected to the primary system by simply connecting the wall bushing. The cooling pipeline and cable inlet and outlet in the container are located on both sides of the container to ensure that the cables and water pipes are independent of each other and are not affected by each other. The installation of the industrial air conditioner 5 and the wall bushing 1 is completed simultaneously during the production of the container body 2. If the production progress of the container is relatively backward, the valve stack 3 can be installed first, and the valve stacks can be hoisted into the container one by one, and then the container can be capped.

[0027] The frame and container body are equipped with threaded holes. After the test, the transport tooling is installed. The parts installed in the factory do not need to be removed. When the container is transported to the site, it only needs to be connected and debugged with external equipment. In addition, the container is equipped with interfaces for auxiliary equipment such as fire protection and monitoring to meet the requirements of different users.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A container-based static synchronous phase condenser system, characterized in that: It comprises a valve group installed in a box (2), one end of the box (2) is provided with a wall bushing (1), the interior of one end of the wall bushing (1) is connected to the valve group, and the exterior is connected to an outdoor primary power system; The valve group comprises a plurality of valve stacks (3) connected in series in sequence via copper bars (7), and the valve stack (3) comprises a plurality of clusters (8) stacked together.

2. The container-based static synchronous phase condenser system according to claim 1, characterized in that: Each layer of the plurality of clusters (8) and the bottom of the box body (2) are connected via an insulating base (9); the insulating base (9) is an I-shaped structure, and a protruding structure is provided on the reinforcing ribs of the insulating base (9).

3. The container-based static synchronous phase condenser system according to claim 1, characterized in that: Inspection passages (17) are provided on both sides of the box body (2), and manual hoist slide rails (18) are provided on the top of the inspection passages (17).

4. The container-based static synchronous phase condenser system according to claim 1, characterized in that: The cluster (8) comprises a filter module (12), a super capacitor (10) arranged on the upper layer of the mounting bracket (11), and a high-voltage box (13) and an H-bridge module (14) arranged on the lower layer of the mounting bracket (11); The filter module (12) is electrically connected to the high voltage box (13) and the H-bridge module (14) respectively.

5. The container-based static synchronous phase condenser system according to claim 4, characterized in that: The mounting bracket (11) is provided with a guide member (15) for pushing the super capacitor (10) and the H-bridge module (14) into the mounting bracket (11), and the mounting bracket is provided with a column (16) for separating the mounting areas of the super capacitor (10), the filter module (12), the high-voltage box (13) and the H-bridge module (14).

6. The container-based static synchronous phase condenser system according to claim 1, characterized in that: The other end of the box (2) is provided with an industrial air conditioner (5).

7. The container-based static synchronous phase condenser system according to claim 1, characterized in that: A turbulent fan (4) is provided on the top of the interior of the box body (2).

8. The container-based static synchronous phase condenser system according to claim 1, characterized in that: A water pipe (6) for cooling is arranged on the outside of the valve stack (3).

9. The container-based static synchronous phase condenser system according to claim 1, characterized in that: A cooling pipeline inlet and outlet are provided on one side of the bottom of the box body (2), and a cable inlet and outlet are provided on the other side of the bottom.

10. The container-based static synchronous condenser system according to claim 1, characterized in that: It also includes a water cooling container, which is communicatively connected to the box body (2), and is used to provide a cooling body for the water pipes in the box body (2).

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