Energy storage, conversion and boosting all-in-one machine

Abstract

The utility model belongs to the field of electric power energy storage equipment, and discloses an energy storage, current transformation and voltage boosting all-in-one machine, which comprises a box body provided with a length direction, a width direction, a voltage boosting cabin, a current transformation cabin arranged in the box body along the length direction, two current transformer units arranged at one end in the box body along the length direction and positioned on one side of the voltage boosting cabin, and a voltage boosting cabin arranged in the box body along the width direction, the two converter units are respectively arranged in the converter cabin along the width direction, each converter unit is provided with a direct current power distribution module and a liquid cooling unit, and the liquid cooling unit is arranged in the converter cabin and is respectively communicated with the two converter units. According to the utility model, the liquid cooling unit is utilized to carry out liquid cooling heat dissipation on the converter unit, the cooling effect is better, the power expansion space of the converter is larger, the structure is simple, the converter is not easy to fail, and the environmental adaptability of equipment is effectively improved; the two converter units share the AC power distribution module, so that high integration is realized, the equipment complexity is reduced, the number of parts is reduced, the equipment cost is effectively reduced, and production assembly and later maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electric power energy storage equipment, specifically relates to a kind of energy storage converter step-up integrated machine. BACKGROUND

[0002] Energy storage is the key link of "source network load storage", has new energy consumption, improves power quality, important functions such as peak clipping, is crucial for new type power system establishment.Energy storage converter step-up integrated machine is the important component of energy storage system, according to function division, equipment structure can be divided into transformer part and converter part.

[0003] Among them, the structure of transformer part (integrated machine) is usually composed of transformer room, high voltage room and low voltage distribution room, and the converter part (integrated machine) is usually composed of energy storage converter module, DC distribution module, AC distribution module and the like.According to the power size of converter, it can be divided into centralized type and string type.

[0004] At present, the mainstream string type converter step-up integrated machine in the market usually adopts air cooling heat dissipation mode, air flow is sucked from the bottom and then discharged from the top or side;Its cooling capacity is low, the expansion space of converter power is not enough, the power density is low, and the versatility of converter is reduced, in addition, the air duct structure needs to be designed to introduce cold air and distribute air flow, the structure is relatively complex, and there are risks of sealing failure, equipment pollution, and the need for regular cleaning, etc., and air cooling heat dissipation also reduces the environmental adaptability of the equipment, and the corrosion, waterproof and dustproof ability is reduced;The arrangement mode is mostly that the converter is arranged on the upper layer of the equipment, and the AC and DC distribution modules are arranged on the lower layer of the equipment, and when multiple converters are arranged in the integrated machine, there is an AC distribution module under each converter, if the number of converters is large, the number of AC distribution modules will also be large, therefore, there are problems of low integration degree, low space utilization, and the structure is usually a machine control cabinet, the cost is relatively high, the assembly workload is large, and the operation and maintenance are difficult. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of energy storage converter step-up integrated machine, aims at using liquid cooling mode to handle the converter unit, compared with air cooling, its cooling effect is better, and the power expansion space of converter is higher.And simple structure, not easy to fail, effectively improve the environmental adaptability of equipment.And two converter units share the same set of AC distribution modules, and the converter units are arranged vertically, so that the height space of the equipment can be fully utilized, and the volume and floor area of the equipment can be reduced.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of energy storage converter step-up integrated machine, comprising,

[0008] The box has a length direction, a width direction,

[0009] Further, the box has a booster cabin opened in the length direction inside the box,

[0010] A converter cabin is opened in the length direction inside the box and located on one side of the booster cabin,

[0011] Two converter units are respectively placed in the converter cabin along the width direction, and each converter unit has a DC power distribution module,

[0012] A liquid cooling unit is placed in the converter cabin and respectively connected to the two converter units;

[0013] An AC power distribution module is placed in the converter cabin and has two converter back-to-back AC / DC interfaces respectively connected to two groups of DC power distribution modules.

[0014] Preferably, the AC power distribution module is respectively arranged between the two converter units along the width direction,

[0015] And the two converter units are symmetrically arranged relative to the AC power distribution module.

[0016] Preferably, the box also has a height direction, each converter unit includes a plurality of converters, and the plurality of converters are arranged in the converter cabin along the height direction,

[0017] The liquid cooling unit is connected to a liquid cooling main pipe, and the liquid cooling main pipe extends along the height direction, and a plurality of groups of liquid cooling inlet pipes and liquid cooling outlet pipes are respectively connected to the liquid cooling main pipe, and each group of liquid cooling inlet pipes and liquid cooling outlet pipes is connected to each converter.

[0018] Further, the liquid cooling unit includes an inlet and an outlet, one end of the liquid cooling main pipe is connected to the inlet, and the other end is connected to the outlet.

[0019] Preferably, the number of each group of DC power distribution modules is the same as the number of each converter, and each group of DC power distribution modules is arranged in the converter cabin along the height direction, and each DC power distribution module is integrated on the converter.

[0020] Preferably, the booster cabin includes a transformer chamber, a high-voltage chamber, and a low-voltage power distribution chamber,

[0021] The high-voltage chamber and the low-voltage power distribution chamber are respectively arranged at the other end of the box along the length direction and along the width direction.

[0022] The transformer chamber is arranged in the middle of the box along the length direction.

[0023] Further, the transformer chamber is arranged in the middle of the low-voltage distribution chamber and the AC distribution module along the length direction.

[0024] Compared with the prior art, the utility model has the advantages of:

[0025] 1. Because the utility model includes the box body, has the length direction, the width direction, still includes, the booster cabin, along the length direction is established in the inside of the box body, the converter cabin, along the length direction is established in the inside one end of the box body, and is located the side of the booster cabin, two converter units, respectively along the width direction is placed in the converter cabin, and every converter unit has direct current distribution module, liquid cooling unit, is placed in the converter cabin, and is connected with two converter units respectively, AC distribution module, is placed in the converter cabin, and has two converter back surface alternating current and direct current interface respectively, two converter back surface alternating current and direct current interface are connected with two groups direct current distribution module, the purpose is to realize the separation of converter cabin and booster cabin, thereby realize high and low voltage separation, and utilize liquid cooling unit to liquid cooling heat dissipation to converter unit, its cooling effect is better, and the power expansion space of converter is higher. And simple structure, not easy to fail, effectively improve the environmental adaptability of equipment, and two converter units share the same AC distribution module, the purpose is to reflect high integration, reduce the complexity of equipment, reduce the number of parts, effectively reduce the equipment cost, and be favorable to production assembly and post-maintenance, in addition, the converter unit realizes liquid cooling heat dissipation, and another function is to realize water and electricity separation, in addition, the converter cabin also realizes alternating current and direct current isolation without intersection, improves the corrosion resistance, waterproof and dustproof ability of equipment, improves the power density of equipment, reduces the volume of equipment, thereby improves the safety, stability and reliability of equipment operation.

[0026] 2. Because the AC distribution module is arranged between the two converter units along the width direction, and the two converter units are symmetrically arranged relative to the AC distribution module, the purpose is to facilitate wiring and have cost advantage.

[0027] 3. Because the box body also has a height direction, each converter unit includes a plurality of converters, and the plurality of converters are arranged in the converter cabin along the height direction, the purpose is to fully utilize the height direction space, reduce the equipment volume and floor area; the liquid cooling unit is connected to a liquid cooling main pipe, and the liquid cooling main pipe extends along the height direction, a plurality of liquid cooling inlet pipes and liquid cooling outlet pipes are connected to the liquid cooling main pipe, and each liquid cooling inlet pipe and liquid cooling outlet pipe is connected to each converter; the purpose is to realize the recycling of liquid cooling liquid by passing through the liquid cooling unit, liquid cooling main pipe, liquid cooling inlet pipe, converter, liquid cooling outlet pipe, liquid cooling main pipe, and liquid cooling unit, in addition, the water in the liquid cooling main pipe is effectively separated from the electricity, improving the safety, stability and reliability of equipment operation.

[0028] 4. Because the number of each group of direct current power distribution modules is same as the number of each converter, and each group of direct current power distribution modules is arranged in the height direction in the converter cabin, and each direct current power distribution module is integrated on the converter, the height direction space can be fully utilized, and the equipment volume and floor area are reduced.

[0029] 5. Because the booster cabin includes the transformer room, the high voltage room and the low voltage power distribution room, the high voltage room and the low voltage power distribution room are respectively arranged at the other end of the box body in the length direction, the high and low voltage can be effectively isolated, and are respectively arranged in the width direction, and the transformer room is arranged in the middle of the box body in the length direction, the strong and weak electricity can be effectively separated. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a top view of the utility model;

[0031] Figure 2 It is a front view of the utility model;

[0032] Figure 3 It is a perspective view of the utility model;

[0033] Figure 4 It is Figure 3 the structure schematic view of A part in the middle;

[0034] Figure 5 It is Figure 3 the structure schematic view of B part in the middle;

[0035] Figure 6 It is a side view of the utility model.

[0036] In the drawing: box body 1; booster cabin 2; transformer room 21; high voltage room 22; low voltage power distribution room 23; converter cabin 3; converter unit 4; converter 41; direct current power distribution module 5; liquid cooling unit 6; liquid cooling unit liquid inlet pipe 61; liquid cooling unit liquid outlet pipe 62; alternating current power distribution module 7; converter back surface alternating current-direct current interface 8; liquid cooling main pipe 9; liquid cooling inlet pipe 10; liquid cooling outlet pipe 11. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following embodiments are combined with the drawings to specifically describe the utility model, and it should be explained that the description of these embodiments is used to help understand the utility model, but does not constitute the limitation of the utility model.

[0038] As Figure 1 , 3 -5 shows a kind of energy storage converter booster integrated machine, including,

[0039] The box 1 has a length direction, a width direction,

[0040] Further comprising, the booster cabin 2 is opened in the inside of the box 1 along the length direction, wherein the booster cabin 2 comprises a transformer room 21, a high-voltage room 22 and a low-voltage distribution room 23,

[0041] The high-voltage room 22 and the low-voltage distribution room 23 are respectively arranged at the other end of the inside of the box 1 along the length direction, and are respectively arranged along the width direction; the transformer room 21 is arranged in the middle of the inside of the box 1 along the length direction; specifically, the transformer room 21 is arranged in the middle of the low-voltage distribution room 23 and the alternating current distribution module 7 along the length direction;

[0042] The converter cabin 3 is opened at one end of the inside of the box 1 along the length direction, and is located at one side of the booster cabin 2, so that the converter cabin 3 and the booster cabin 2 are integrated in two spaces in the inside of the box 1, which are isolated from each other and connected to each other, so as to improve the environmental adaptability of the energy storage system;

[0043] Two converter units 4 are respectively arranged in the converter cabin 3 along the width direction, and each converter unit 4 has a direct current distribution module 5,

[0044] The liquid cooling unit 6 is arranged in the converter cabin 3 and is respectively connected to the two converter units 4;

[0045] The alternating current distribution module 7 is arranged in the converter cabin 3 and has two converter back-to-back alternating current and direct current interfaces 8, which are connected to the two groups of direct current distribution modules 5.

[0046] The alternating current distribution module 7 is arranged between the two converter units 4 along the width direction, and the two converter units 4 are symmetrically arranged relative to the alternating current distribution module 7.

[0047] As shown in Figure 2 , 6 The box 1 also has a height direction, each converter unit 4 comprises a plurality of converters 41, and the plurality of converters 41 are arranged in the converter cabin 3 along the height direction,

[0048] The liquid cooling unit 6 (which can be water or other, such as liquid nitrogen) is connected to a liquid cooling main pipe 9, and the liquid cooling main pipe 9 extends along the height direction, and a plurality of groups of liquid cooling inlet pipes 10 and liquid cooling outlet pipes 11 are respectively connected to the liquid cooling main pipe 9, and each group of liquid cooling inlet pipes 10 and liquid cooling outlet pipes 11 is connected to each converter 41, and more specifically, the liquid cooling unit 6 is respectively connected to a liquid cooling unit inlet pipe 61 and a liquid cooling unit outlet pipe 62, one end of the liquid cooling main pipe 9 is connected to the liquid cooling unit inlet pipe 61, and the other end is connected to the liquid cooling unit outlet pipe 62.

[0049] The number of each group of direct current power distribution modules 8 is the same as the number of each converter 41, and each group of direct current power distribution modules 8 is arranged in the height direction in the converter cabin 3, and each direct current power distribution module 8 is integrated on the converter 41, specifically, the direct current power distribution module is integrated on the side of the converter unit, forming a height-integrated system, effectively reducing the number of device parts, improving the production and assembly efficiency of the device, facilitating later maintenance, and effectively reducing the cost of the device.

[0050] It should be noted that the transformer is arranged in the transformer chamber, the high-voltage equipment is arranged in the high-voltage chamber, and the low-voltage power distribution equipment is arranged in the low-voltage power distribution chamber.

[0051] The first cabinet door is movably arranged on the cabinet 1 (which can be arranged in the form of being opened and closed by a hinge, not shown in the drawings), and a ventilation grille is arranged on the first cabinet door, which corresponds to the transformer chamber 21, so that the transformer chamber 21 is in communication with the outside of the cabinet. The purpose is to cool the transformer in the transformer chamber, and by opening the first cabinet door, the transformer chamber 21 can be accessed to repair or replace the equipment in the transformer chamber 21.

[0052] The second cabinet door is movably arranged on the cabinet 1 (which can be arranged in the form of being opened and closed by a hinge, not shown in the drawings), and the second cabinet door corresponds to the low-voltage power distribution chamber 23. By opening the second cabinet door, the low-voltage power distribution chamber 23 can be accessed to repair or replace the equipment in the low-voltage power distribution chamber 23.

[0053] The third cabinet door is movably arranged on the cabinet 1 (which can be arranged in the form of being opened and closed by a hinge, not shown in the drawings), and the third cabinet door corresponds to the high-voltage chamber 22. By opening the third cabinet door, the high-voltage chamber 22 can be accessed to repair or replace the equipment in the high-voltage chamber 22.

[0054] The all-in-one machine cools the converter by using a liquid cooling method, improves the power density of the device, effectively improves the environmental adaptability of the device, and at the same time, through water-electric separation, AC-DC effective separation and high-low voltage isolation, the device layout is clear, the structure is simple, and the running stability and reliability of the device are improved; the shared AC power distribution module 7 effectively reduces the workload of production and assembly, and production and assembly can be carried out synchronously, and the maintainability of the device is improved.

[0055] The above embodiments are preferred cases of the present application, and do not limit the protection scope of the present application. Various modifications or changes made by those skilled in the art within the scope of the appended claims without creative labor still fall within the protection scope of the present application.

Claims

1. An energy storage converter and booster integrated machine, comprising a box body having a length direction and a width direction, characterized in that, The application also discloses a kind of energy storage converter and booster integrated machine, including: box, which is provided with length direction, width direction and height direction;Boosting cabin is opened in the inside of the box along length direction;Converter cabin is opened in the inside of the box along length direction one end and is located in the side of the boosting cabin;Two converter units are placed in converter cabin along width direction respectively, and each converter unit has direct current distribution module;Liquid cooling unit is placed in converter cabin and is connected with two converter units respectively;AC distribution module is placed in converter cabin and has two converter back alternating current-dc interfaces respectively, two converter back alternating current-dc interfaces are connected with two groups of direct current distribution module;Wherein, AC distribution module is respectively arranged between two converter units along width direction, and two converter units are symmetrically arranged relative to AC distribution module;The box also has height direction, each converter unit includes several converters, and several converters are arranged in the converter cabin along height direction;Liquid cooling main pipe is connected with liquid cooling unit, and liquid cooling main pipe extends along height direction;Liquid cooling main pipe is respectively connected with multiple groups of liquid cooling inlet pipe and liquid cooling outlet pipe, and each group of liquid cooling inlet pipe and liquid cooling outlet pipe is connected with each converter;The number of each group of direct current distribution module is same with the number of each converter, and each group of direct current distribution module is arranged in the converter cabin along height direction, and each direct current distribution module is integrated on the converter.

2. The energy storage converter and booster integrated machine according to claim 1, characterized in that: The liquid cooling unit comprises an inlet and an outlet, one end of the liquid cooling main pipe is connected with the inlet, and the other end is connected with the outlet.

3. The energy storage converter and booster integrated machine according to claim 2, characterized in that: The boosting cabin comprises a transformer chamber, a high-voltage chamber and a low-voltage distribution chamber, the high-voltage chamber and the low-voltage distribution chamber are respectively arranged at the other end of the inside of the box along the length direction and are respectively arranged along the width direction, and the transformer chamber is arranged at the middle of the inside of the box along the length direction.

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