Energy storage, current transformation and voltage boosting all-in-one cabinet transformer

Abstract

The utility model relates to the field of high-voltage transformers, in particular to an energy storage, current transformation and voltage boosting all-in-one transformer. The utility model provides an energy storage, current transformation and voltage boosting all-in-one cabinet transformer, which comprises a base, a base plate, a transformer core, a transformer core and a transformer core, a box body is arranged in the in-box area, and a PCS cabinet is arranged in the out-box area; wherein the box body is electrically connected with the PCS cabinet. The PCS is arranged in the area outside the box, so that a cooling fan required by the PCS chamber does not need to be arranged in the box body, and a frame bottom plate and an air inlet do not need to be additionally arranged on the box body. And after the PCS cabinet is moved out of the box body, the spatial arrangement in the box body can be further optimized, so that the length of the box body is reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage transformers, in particular to an energy storage, current conversion and voltage boosting integrated chassis transformer. Background Art

[0002] Since the container type cannot install the transformer and distribution switch cabinet from the top, the required box length is longer for easy installation. Therefore, the increase in the length of the box increases the cost. At the same time, if the PCS (Power Conversion System) cabinet is set inside the box transformer, due to the high heat generated by the PCS, it is necessary to add air inlets and cooling fans to the frame base and side panels, which increases the cost. If the high-voltage distribution switch cabinet is installed vertically, the space depth required is the same as that of the horizontal installation, but the length needs to be increased.

[0003] Therefore, for the energy storage converter and boost integrated chassis transformer, how to avoid the long length of the chassis and reduce the manufacturing cost and transportation cost is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0004] The utility model aims to provide an energy storage, current conversion and voltage boosting integrated chassis transformer to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides an energy storage, current conversion and boosting integrated box transformer, comprising: an inner box area and an outer box area; and

[0006] The box body is arranged in the box inner area, and the PCS cabinet is arranged in the box outer area;

[0007] A plurality of partitions are arranged in the box body, and the box body is divided into a high-voltage transformer room, an auxiliary transformer room, a high-voltage room and a low-voltage room by corresponding partitions;

[0008] The high voltage transformer room is electrically connected to the PCS cabinet.

[0009] The high-voltage transformer room is provided with a high-voltage transformer;

[0010] A bridge is provided between the high-voltage transformer and the PCS cabinet, and a low-voltage bus is provided in the bridge. Two ends of the low-voltage bus are electrically connected to the high-voltage transformer and the PCS cabinet respectively;

[0011] The low voltage busbar is provided with a low voltage current transformer.

[0012] The high voltage chamber is provided with a high voltage fuse load switch combination appliance and a high voltage circuit breaker switch;

[0013] The high-voltage fuse load switch combination electrical appliance is provided with a fuse tube, and the high-voltage circuit breaker switch is provided with a high-voltage current transformer;

[0014] A high-voltage wall bushing is provided between the high-voltage transformer room and the high-voltage room, and a high-voltage busbar is provided inside the high-voltage wall bushing;

[0015] One end of the high-voltage busbar is electrically connected to the high-voltage transformer chamber, and the other end is electrically connected to the melting tube or the high-voltage current transformer.

[0016] Air inlets are provided at the bottom of the high-voltage transformer chamber and the auxiliary transformer chamber, and insect-proof nets are welded inside the air inlets;

[0017] Fans are arranged on the tops of the high-voltage transformer room and the auxiliary transformer room.

[0018] The integrated chassis also includes a base, on which a lower well hole and a cable inlet and outlet hole are opened, and the lower well hole and the cable inlet and outlet hole are located below the PCS cabinet;

[0019] The circumferentially welded water retaining plates of the lower well hole and the cable entry and exit holes.

[0020] A copper busbar is arranged between the grounding point of the PCS cabinet and the grounding point of the base.

[0021] A high-voltage partition wall is arranged on one side of the high-voltage chamber, and a lighting lamp, an observation window, a low-voltage control box and a high-voltage compartment door are installed on the high-voltage partition wall.

[0022] The high-voltage chamber is also provided with a high-voltage lightning arrester, a discharge counter, a high-voltage cable connecting branch bus and a high-voltage insulator.

[0023] The low-voltage room is provided with a low-voltage distribution cabinet, a UPS and a battery.

[0024] The outer area of ​​the box also includes a fire extinguisher box.

[0025] Compared with the prior art, the embodiment of the utility model has the following beneficial effects: by arranging the PCS in the area outside the box, it is not necessary to arrange the heat dissipation fan required by the PCS room in the box body, nor is it necessary to add a frame bottom plate and an air inlet to the box body. After the PCS cabinet is moved out of the box body, the space layout in the box body can be further optimized, thereby reducing the length of the box body, thereby reducing the cost and realizing a miniaturized design. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 The schematic diagram of the structure of the energy storage, current conversion and voltage boosting integrated chassis transformer of the utility model is shown;

[0028] Figure 2A top view of the energy storage, current conversion and voltage boosting integrated chassis transformer of the utility model is shown;

[0029] Figure 3 A first internal structure schematic diagram of the energy storage, current conversion and voltage boosting integrated chassis transformer of the utility model is shown;

[0030] Figure 4 A second internal structure schematic diagram of the energy storage, current conversion and voltage boosting integrated chassis transformer of the utility model is shown;

[0031] Figure 5 The utility model shows a structural schematic diagram of a high-voltage partition wall.

[0032] In the figure:

[0033] 1. Base; 102. Fan; 11. Partition; 12. High-voltage transformer room; 121. Bridge; 122. Low-voltage busbar; 123. Low-voltage current transformer;

[0034] 13. Auxiliary transformer room; 14. High-voltage room; 141. High-voltage fuse load switch combination appliance; 142. High-voltage circuit breaker switch; 143. Fuse tube; 144. High-voltage current transformer; 145. High-voltage wall bushing; 146. High-voltage busbar; 1461. High-voltage cable connecting branch busbar; 1462. High-voltage insulator; 147. High-voltage partition wall; 1471. Lighting lamp; 1472. Observation window; 1473. Low-voltage control box; 1474. High-voltage compartment door; 148. High-voltage lightning arrester; 149. Discharge counter;

[0035] 15. Low voltage room; 151. Low voltage distribution cabinet; 152. UPS; 153. Battery;

[0036] 2. Box body; 3. PCS cabinet; 31. Downhole; 32. Cable inlet and outlet holes; 33. Copper busbar; 4. Fire extinguisher box. DETAILED DESCRIPTION

[0037] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0038] In the related art, most of the grid-connected inverter-boosting integrated chassis used in power stations integrate inverters, transformers, ring network cabinets, and high-voltage distribution switch lights. Most of the integrated machines are integrated in containers. Due to the large size and heavy weight of the transformer and the distribution cabinet, the installation is more difficult and sufficient space needs to be reserved for installation. Therefore, there is room for further improvement.

[0039] like Figure 1As shown, at least one embodiment provides an integrated energy storage, current conversion and boosting chassis transformer, including a base 1, and the top of the base 1 is divided into an inner box area and an outer box area. The overall box transformer equipment generally has a PCS (Power Conversion System) cabinet 3. The PCS cabinet 3 generates a large amount of heat. If the PCS cabinet 3 is designed inside the inner box area, it is necessary to add an air inlet to the floor of the inner box area and install an additional cooling fan, which increases the cost. Therefore, in some embodiments, a box body 2 is provided in the inner box area, and a PCS cabinet 3 is provided in the outer box area, thereby eliminating the need to open an air inlet hole in the box body 2 and install a cooling fan 102. At the same time, after the PCS cabinet 3 is installed in the outer box area, the components inside the box body 2 can be reduced, and the device layout position inside the box body 2 can be optimized. The size of the box body 2 is reduced, so that the production and transportation costs of the adjusted box body 2 are reduced. A grounding point and a lifting point are also provided on the base 1.

[0040] like Figure 2 As shown, the box body 2 includes a top cover and several outer panels, and cooperates with the base 1 to form a rectangular outline of the box body 2. Several partitions 11 are arranged inside the box body 2, and the inside of the box body 2 can be divided into a high-voltage transformer chamber 12, an auxiliary transformer chamber 13, a high-voltage chamber 14 and a low-voltage chamber 15 through the partitions 11. Among them, the high-voltage transformer chamber 12 and the auxiliary transformer chamber 13 are respectively installed with a high-voltage transformer and an auxiliary transformer. The bottom plate of the base 1 of the high-voltage transformer chamber 12 and the auxiliary transformer chamber 13 is provided with an air inlet hole, and an insect-proof net is welded under the bottom plate. At the same time, a fan 102 is arranged on the top of the high-voltage transformer chamber 12 and the auxiliary transformer chamber 13. Through the above arrangement, it is ensured that the high-voltage transformer chamber 12 and the auxiliary transformer chamber 13 are well ventilated, the heat dissipation function is ensured to operate stably, and insects are prevented from entering the high-voltage transformer chamber 12 and the auxiliary transformer chamber 13 through the air inlet hole.

[0041] like Figure 2 As shown, a bridge 121 is provided between the high-voltage transformer and the PCS cabinet 3, and a low-voltage bus 122 is provided in the bridge 121. Both ends of the low-voltage bus 122 are electrically connected to the high-voltage transformer and the PCS cabinet 3, respectively. A low-voltage current transformer 123 is provided on the low-voltage bus 122.

[0042] like Figure 3As shown, the high-voltage chamber 14 has a high-voltage fuse load switch combination device 141 and a high-voltage circuit breaker switch 142. The high-voltage fuse load switch combination device 141 has a fuse tube 143, and the high-voltage circuit breaker switch 142 has a high-voltage current transformer 144. A high-voltage wall bushing 145 is provided between the high-voltage transformer chamber 12 and the high-voltage chamber 14, and a high-voltage busbar 146 is provided in the high-voltage wall bushing 145. One end of the high-voltage busbar 146 is electrically connected to the high-voltage transformer chamber 12, and the other end is electrically connected to the fuse tube 143 or the high-voltage current transformer 144.

[0043] In some embodiments, the high voltage bus 146 on the high voltage transformer is located above the side close to the high voltage chamber 14, and the low voltage bus 122 is located below the side close to the PCS cabinet 3. The capacity of the high voltage transformer can meet the capacity of 3450KVA and below. The capacity of the auxiliary transformer 301 can meet the capacity of 160kVA and below.

[0044] like Figure 3 As shown, in order to facilitate the operator to observe and operate the high-pressure chamber 14, in some embodiments, as a preference, a high-pressure partition wall 147 is provided on one side of the high-pressure chamber 14. Figure 5 As shown, a lighting lamp 1471, an observation window 1472, a low-voltage control box 1473 and a high-voltage compartment door 1474 are installed on the high-voltage partition wall 147. An electromagnetic lock is installed on the high-voltage compartment door 1474 to open and close the high-voltage compartment door 1474. At the same time, the high-voltage chamber 14 also has a high-voltage lightning arrester 148, a discharge counter 149, a high-voltage cable connecting branch bus 1461 and a high-voltage insulator 1462.

[0045] like Figure 3 As shown, the low-voltage room 15 is provided with a low-voltage distribution cabinet 151 and a UPS 152

[0046] (Uninterruptible Power Supply) Uninterruptible power supply, battery 153.

[0047] like Figure 2 As shown, in some embodiments, the base 1 is provided with a lower well hole 31 and a cable inlet and outlet hole 32 at the installation position of the PCS cabinet 3. The lower well hole 31 and the cable inlet and outlet hole 32 are circumferentially welded with a water retaining plate to prevent water from entering the PCS cabinet 3 from the lower well hole 31 and the cable inlet and outlet hole 32. At the same time, a copper busbar 33 is provided between the grounding point of the PCS cabinet 3 and the grounding point of the base 1, so that the PCS cabinet 3 is connected to the grounding point on the base 1 through the copper busbar 33 to achieve grounding of the PCS cabinet 3.

[0048] In addition, if Figure 2As shown, the outer area of ​​the box also includes a fire extinguisher box 4, which is used to extinguish the integrated chassis in case of fire.

[0049] It is worth mentioning that the technical features such as other components involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated.

[0050] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An integrated chassis transformer for energy storage, current conversion and voltage boosting, characterized in that: include: The area inside the box and the area outside the box; and The box inner area is provided with a box body (2), and the box outer area is provided with a PCS cabinet (3); A plurality of partitions (11) are arranged in the box body (2), and the box body (2) is divided into a high-voltage transformer chamber (12), an auxiliary transformer chamber (13), a high-voltage chamber (14) and a low-voltage chamber (15) by corresponding partitions (11); The high-voltage transformer chamber (12) is electrically connected to the PCS cabinet (3).

2. The energy storage, current conversion and voltage boosting integrated chassis transformer according to claim 1, characterized in that: The high-voltage transformer chamber (12) contains a high-voltage transformer; A bridge (121) is provided between the high-voltage transformer and the PCS cabinet (3), a low-voltage busbar (122) is provided in the bridge (121), and two ends of the low-voltage busbar (122) are electrically connected to the high-voltage transformer and the PCS cabinet (3) respectively; A low-voltage current transformer (123) is provided on the low-voltage busbar (122).

3. The energy storage, current conversion and voltage boosting integrated chassis transformer according to claim 1, characterized in that: The high-voltage chamber (14) contains a high-voltage fuse load switch combination device (141) and a high-voltage circuit breaker switch (142); The high-voltage fuse load switch combination device (141) is provided with a fuse tube (143), and the high-voltage circuit breaker switch (142) is provided with a high-voltage current transformer (144); A high-voltage wall bushing (145) is provided between the high-voltage transformer chamber (12) and the high-voltage chamber (14), and a high-voltage busbar (146) is provided inside the high-voltage wall bushing (145); One end of the high-voltage busbar (146) is electrically connected to the high-voltage transformer chamber (12), and the other end is electrically connected to the melting tube (143) or the high-voltage current transformer (144).

4. The energy storage, current conversion and voltage boosting integrated chassis transformer according to claim 1, characterized in that: Air inlet holes are provided at the bottom of the high-voltage transformer chamber (12) and the auxiliary transformer chamber (13), and insect-proof nets are welded inside the air inlet holes; A fan (102) is provided on the top of the high-voltage transformer chamber (12) and the auxiliary transformer chamber (13).

5. The energy storage, current conversion and voltage boosting integrated chassis transformer according to claim 1, characterized in that: The integrated chassis transformer further comprises a base (1), the base (1) being provided with a lower well hole (31) and a cable inlet and outlet hole (32), the lower well hole (31) and the cable inlet and outlet hole (32) being located below the PCS cabinet (3); Circumferentially welded water retaining plates of the lower wellbore (31) and the cable inlet and outlet holes (32).

6. The integrated energy storage, current conversion and voltage boosting chassis transformer according to claim 5, characterized in that: A copper busbar (33) is provided between the grounding point of the PCS cabinet (3) and the grounding point of the base (1).

7. The integrated energy storage, current conversion and voltage boosting chassis transformer according to claim 1, characterized in that: A high-voltage partition wall (147) is provided on one side of the high-voltage chamber (14), and a lighting lamp (1471), an observation window (1472), a low-voltage control box (1473), and a high-voltage compartment door (1474) are installed on the high-voltage partition wall (147).

8. The integrated energy storage, current conversion and voltage boosting chassis transformer according to claim 3, characterized in that: The high-voltage chamber (14) also has a high-voltage lightning arrester (148), a discharge counter (149), a high-voltage cable connecting branch bus (1461), and a high-voltage insulator (1462).

9. The integrated energy storage, current conversion and voltage boosting chassis transformer according to claim 1, characterized in that: A low-voltage power distribution cabinet (151), a UPS (152), and a battery (153) are arranged in the low-voltage room (15).

10. The integrated energy storage, current conversion and voltage boosting chassis transformer according to claim 1, characterized in that: The outer area of ​​the box also includes a fire extinguisher box (4).

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