IGCT hydrogen production power supply device

Abstract

The utility model discloses an IGCT hydrogen production power supply device, and relates to the technical field of power supply. The device comprises a power cabinet, a power control cabinet, a water cabinet, an alternating current bus and a direct current bus, the power cabinet comprises an IGCT module; the IGCT module is connected with the interior of the power cabinet; the power cabinet, the power control cabinet and the water machine cabinet are sequentially arranged in parallel and are connected through cabinet combination bolts; alternating-current buses are erected at the tops of cabinet bodies of the power cabinet, the power control cabinet and the water cabinet; and direct-current buses are erected at the bottoms of cabinet bodies of the power cabinet, the power control cabinet and the water cabinet. The IGCT hydrogen production power supply device provided by the utility model is smaller in occupied area, simple in structure, convenient to install and maintain, high in reliability and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply, in particular to an IGCT hydrogen production power supply device. Background Art

[0002] This section aims to provide background or context for the embodiments of the utility model described in this article. The description herein is not admitted to be prior art merely by including it in this section.

[0003] Hydrogen energy is a secondary energy source with rich sources, green and low-carbon, and wide applications, and is gradually becoming one of the important carriers for energy transformation. Large enterprises are vigorously developing hydrogen production projects. There are mainly three technical routes for hydrogen production: reforming hydrogen production from fossil energy represented by coal, oil, and natural gas; purifying hydrogen production from industrial by-products represented by coke oven gas, chlor-alkali tail gas, and propane dehydrogenation; and renewable energy hydrogen production represented by electrolytic water hydrogen production. The main technical routes for electrolytic hydrogen production are thyristor phase-controlled rectifier power supplies and IGBT (Insulated Gate Bipolar Transistor) rectifier power supplies. Thyristor phase-controlled rectifier power supplies require on-load voltage regulators, with large harmonics resulting in large losses, large volume, and high cost of rectifier transformers. IGBT rectifier power supplies have large volume, complex structure, inconvenient installation and maintenance, poor reliability, and high cost. Summary of the Utility Model

[0004] The embodiments of the utility model provide an IGCT hydrogen production power supply device to provide a power supply device with a smaller floor area, simple structure, convenient installation and maintenance, high reliability, and low cost. The device includes:

[0005] Power cabinets, power control cabinets, water cabinets, AC buses, and DC buses;

[0006] The number of power cabinets is multiple, and multiple power components are arranged in each power cabinet; all power components in the power cabinet are arranged in two rows, and a maintenance passage is arranged between the two rows of power components;

[0007] The power control cabinet includes: power components and control components electrically connected to the power components;

[0008] A water machine is arranged in the water cabinet, and the water machine is connected with a water distribution pipeline. The water distribution pipeline includes a water inlet pipe and a water outlet pipe, and both the water inlet pipe and the water outlet pipe are connected to the water machine to form a loop;

[0009] The power cabinets, power control cabinets, and water cabinets are arranged in parallel in sequence and are connected by parallel cabinet bolts;

[0010] AC busbars are installed on the top of the cabinets of the power cabinet, power control cabinet, and water cabinet; DC busbars are installed on the bottom of the cabinets of the power cabinet, power control cabinet, and water cabinet; the AC busbars are respectively connected to the input ends of the power components of the power cabinet and the power control cabinet, and the DC busbars are respectively connected to the output ends of the power components of the power cabinet and the power control cabinet.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model includes a power cabinet, a power control cabinet, a water cabinet, an AC busbar, and a DC busbar; the number of power cabinets is multiple, and multiple power components are arranged in each power cabinet; all the power components in the power cabinet are arranged in two rows, and a maintenance passage is arranged between the two rows of power components; the power control cabinet includes: a power component and a control component electrically connected to the power component; a water machine is arranged in the water cabinet, the water machine is connected with a water distribution pipeline, the water distribution pipeline includes a water inlet pipe and a water outlet pipe, and both the water inlet pipe and the water outlet pipe are connected to the water machine to form a loop; the power cabinet, the power control cabinet, and the water cabinet are arranged in parallel in sequence and are connected by parallel cabinet bolts; AC busbars are installed on the top of the cabinets of the power cabinet, power control cabinet, and water cabinet; DC busbars are installed on the bottom of the cabinets of the power cabinet, power control cabinet, and water cabinet, the AC busbars are respectively connected to the input ends of the power components of the power cabinet and the power control cabinet, and the DC busbars are respectively connected to the output ends of the power components of the power cabinet and the power control cabinet, which can provide a power supply device with a smaller floor area, a simple structure, convenient installation and maintenance, high reliability, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0013] Figure 1 It is a schematic diagram of an IGCT hydrogen production power supply device provided in an embodiment of the present utility model;

[0014] Figure 2 It is a front view of a power cabinet provided in an embodiment of the present utility model;

[0015] Figure 3 It is a side view of a power cabinet provided in an embodiment of the present utility model;

[0016] Figure 4 It is a side view of a power control cabinet provided in an embodiment of the present utility model;

[0017] Figure 5 It is a structural diagram of an IGCT module provided in an embodiment of the present utility model;

[0018] Figure 6 This is a structural diagram of a lifting and positioning device provided in an embodiment of the present utility model;

[0019] Figure 7 This is a structural diagram of a water pipe from a water machine cabinet to a power cabinet provided in an embodiment of the present utility model.

[0020] Wherein, 1 - power cabinet; 2 - power control cabinet; 3 - water machine cabinet; 4 - AC busbar; 5 - DC busbar; 6 - control component; 7 - water machine, 8 - water distribution pipeline; 9 - AC incoming copper bar; 10 - IGCT module; 11 - AC circuit breaker; 12 - DC reactor; 13 - DC circuit breaker; 14 - DC outgoing copper bar; 15 - water cooling pipe; 16 - power cabinet body; 17 - lifting and positioning device, 18 - capacitor. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer and more understandable, the following further elaborates on the embodiments of the present utility model in conjunction with the accompanying drawings. Herein, the illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model, but not to limit the present utility model.

[0022] In the technical solutions of this application, the acquisition, storage, use, processing, etc. of data all comply with the relevant regulations of laws and regulations.

[0023] The term "and / or" in this article merely describes an associated relationship and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" in this article means any one of a plurality or any combination of at least two of a plurality. For example, including at least one of A, B, and C can represent selecting any one or more elements from the set composed of A, B, and C.

[0024] In the description of this specification, the terms "comprising", "including", "having", "containing", etc. are all open-ended terms, that is, they are intended to include but not limited to. The descriptions referring to terms such as "an embodiment", "a specific embodiment", "some embodiments", "for example", etc. mean that the specific features, structures or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The order of steps involved in each embodiment is used to schematically illustrate the implementation of this application, and the order of steps is not limited and can be adjusted appropriately as needed.

[0025] In recent years, with the rapid development of power electronics technology, IGCT (Integrated Gate Commutated Thyristors) has been widely used. The IGCT power supply device uses IGCT as the current conversion device, and this device has the advantages of small floor area, simple structure, convenient installation, good heat dissipation performance, and high reliability.

[0026] Figure 1 The following is a schematic diagram of an IGCT hydrogen production power supply device provided in an embodiment of the present utility model. As Figure 1 shown, the IGCT hydrogen production power supply device includes: a power cabinet 1, a power control cabinet 2, a water cabinet 3, an AC busbar 4, and a DC busbar 5;

[0027] The number of power cabinets 1 is multiple, and multiple power components are arranged in each power cabinet 1; all the power components in the power cabinet 1 are arranged in two rows, and a maintenance passage is arranged between the two rows of power components;

[0028] The power control cabinet 2 includes: power components and a control component 6 electrically connected to the power components;

[0029] A water machine 7 is arranged in the water cabinet 3. The water machine 7 is connected with a water distribution pipeline 8. The water distribution pipeline 8 includes a water inlet pipe and a water outlet pipe, and both the water inlet pipe and the water outlet pipe are connected to the water machine 7 to form a loop;

[0030] The power cabinet 1, the power control cabinet 2, and the water cabinet 3 are arranged in parallel in sequence and are connected by parallel cabinet bolts;

[0031] The AC busbar 4 is erected on the top of the cabinets of the power cabinet 1, the power control cabinet 2, and the water cabinet 3; the DC busbar 5 is erected on the bottom of the cabinets of the power cabinet 1, the power control cabinet 2, and the water cabinet 3; the AC busbar 4 is respectively connected to the input ends of the power components of the power cabinet 1 and the power control cabinet 2, and the DC busbar 5 is respectively connected to the output ends of the power components of the power cabinet 1 and the power control cabinet 2.

[0032] In one embodiment, the AC busbar 4 can be fixed on the top of the cabinets of the power cabinet 1, the power control cabinet 2, and the water cabinet 3 by an insulating board; the DC busbar 5 can be fixed on the bottom of the cabinets of the power cabinet 1, the power control cabinet 2, and the water cabinet 3 by an insulating board; the AC busbar 4 is respectively connected to the input ends of the power components of the power cabinet 1 and the power control cabinet 2, and the DC busbar 5 is respectively connected to the output ends of the power components of the power cabinet 1 and the power control cabinet 2.

[0033] As Figure 1As shown in the figure, specifically, the IGCT hydrogen production power supply device may include 4 power cabinets 1, 1 power control cabinet 2, and 1 water cabinet 3. A total of 6 cabinets are connected by parallel connection bolts. An AC busbar 4 is erected at the top, and a DC busbar 5 is erected at the bottom, both of which are fixed by L-shaped insulating blocks. The AC busbar is arranged at the top of the power cabinet 1 and the power control cabinet 2, and the DC busbar 5 is arranged at the bottom of the power cabinet 1 and the power control cabinet 2. The power cabinet 1, the power control cabinet 2, and the water cabinet 3 are arranged in parallel in sequence.

[0034] Figure 2 This is the front view of a power cabinet provided in an embodiment of the present invention. Figure 3 This is the side view of a power cabinet provided in an embodiment of the present invention. As Figure 2 、 Figure 3 shown, two power components can be arranged in each power cabinet 1. A total of 8 power components in 4 power cabinets 1 are arranged in two rows, with an installation and maintenance channel left in the middle. The two power components in the same power cabinet 1 can be arranged back to back, and the power components can be installed on the channel steel components inside the power cabinet body 16.

[0035] As Figure 2 、 Figure 3 shown, in one embodiment, the power component may include an IGCT module 10; the AC busbar 4 and the DC busbar 5 are respectively connected to the AC interface and the DC interface of the IGCT module 10. The AC busbar 4 inputs alternating current into the IGCT module 10, the IGCT module 10 converts the alternating current into direct current, and the IGCT module 10 sends the direct current to the hydrogen production equipment through the DC busbar 5.

[0036] As Figure 2 、 Figure 3 shown, in one embodiment, the power component may further include: an AC circuit breaker 11, a DC circuit breaker 13, two DC reactors 12, positive and negative current busbars, an AC incoming copper busbar 9, and a DC outgoing copper busbar 14; the AC busbar 4 is connected to the input end of the AC circuit breaker 11 through the AC incoming copper busbar 9; the output end of the AC circuit breaker 11 is connected to the AC interface of the IGCT module 10; the DC interface of the IGCT module 10 is provided with positive and negative current busbars; the positive and negative current busbars are respectively connected to the input ends of two DC circuit breakers 13, and the output ends of the DC circuit breakers 13 are connected to the incoming ends of the DC reactors 12; the outgoing ends of the DC reactors 12 are connected to the DC busbar 5 through the DC outgoing copper busbar 14; the DC outgoing copper busbar 14 passes through the bottom of the power cabinet body and is placed outside the power cabinet body; the IGCT module, the AC circuit breaker 11, the DC circuit breaker 13, two DC reactors 12, positive and negative current busbars, the AC incoming copper busbar 9, the DC outgoing copper busbar 14, and the DC reactor 12 in the power component are arranged in two columns, and a maintenance channel is arranged in the middle of the power component.

[0037] In one embodiment, as Figure 3 shown, each power cabinet 1 may further include a capacitor 18. Three capacitors are configured for each power component, with the upper terminals of the three capacitors interconnected and the lower terminals connected to the three incoming terminals of the power component.

[0038] In one embodiment, two power components may be arranged in each power cabinet 1. Each power cabinet 1 may include 4 DC reactors 12, 2 sets of IGCT modules 10, 2 sets of AC circuit breakers 11, and 2 sets of DC circuit breakers 13, and the above devices are arranged back-to-back.

[0039] In one embodiment, the water distribution pipeline 8 is installed in sections in the power cabinet 1, the power control cabinet 2, and the water cabinet 3. Each power component in the power cabinet 1 may further include a water-cooled pipe 15 connected to the IGCT module 10 and the DC reactor 12. Inlet pipes and return pipes are arranged in the front and rear parts of the power cabinet 1. A number of water nozzles are provided on the inlet pipes and return pipes and are connected to the water inlet and return ports of the water-cooled pipe 15 through FEP (Fluorinated ethylene propylene) hoses.

[0040] In one embodiment, the power cabinet 1 further includes: a copper busbar disposed between the DC circuit breaker 13 and the DC reactor 12; a current sensor is installed on the copper busbar, and the current sensor is a device in the shape of a square; the copper busbar passes through the middle of the square of the current sensor, and the current sensor is used to send the current information of the circuit where it is located to the control component 6.

[0041] In one embodiment, the AC incoming copper busbar 9 is fixed to the top of the power cabinet 1 by an insulating plate, which may be an L-shaped insulating block; the AC incoming copper busbar 9 includes a plurality of U-shaped copper busbars with a height difference between them. Three U-shaped copper busbars are used as the AC incoming copper busbar 9 on the top of each power cabinet 1, and the U-shaped copper busbars are fixed by L-shaped insulating blocks, and the three U-shaped copper busbars have a height difference.

[0042] In one embodiment, through holes are formed in the AC incoming copper busbar 9 for installing incoming cables.

[0043] In one embodiment, when the number of power cabinets 1 is even, every two adjacent power cabinets 1 form a group and are paralleled through parallel copper bars, and the incoming line cable is directly connected to the parallel copper bars; when the number of power cabinets 1 is odd, the incoming line cable is connected to the AC incoming line copper bar 9 on the top of the power cabinet 1 without adjacent power cabinets. The number of power cabinets 1 can be increased or decreased. When the power cabinets 1 are paralleled, from left to right, every two adjacent power cabinets 1 form a group, and the parallel copper bars on the tops of the power cabinets 1 in the same group are paralleled by three copper bars. Through holes are opened on this parallel copper bar for installing the incoming line cable. When the number of power cabinets 1 is even, every two adjacent power cabinets 1 are paralleled as a group, and the incoming line cable is directly connected to the parallel copper bars. When the number of power cabinets 1 is odd, the incoming line copper bar on the top of the extra power cabinet 1 is directly connected to the incoming line cable.

[0044] Figure 4 The side view of a power control cabinet provided in an embodiment of the present invention is shown as Figure 4 shown. The power control cabinet 2 may include 2 DC reactors 12, 1 set of IGCT modules 10, 1 set of AC circuit breakers 11, 1 set of DC circuit breakers 13, water cooling pipes 15 and a control component 6. The internal structures and connection manners of the power components in the power control cabinet 2 and the power components in the power cabinet 1 are the same and will not be described herein again.

[0045] In one embodiment, the water distribution pipeline 8 is installed in sections in the power cabinet 1, the power control cabinet 2 and the water cabinet 3. Similar to the power cabinet 1, the power components in the power control cabinet 2 also include a water cooling pipe 15 connected between the IGCT module 10 and the DC reactor 12. The water distribution pipeline 8 of the power control cabinet 2 also includes a water inlet pipe and a water return pipe. The front and rear water inlet pipes of the power control cabinet 2 are connected through a T-shaped three-way flange on the side of the power control cabinet 2 close to the water cabinet 3, and the vertical interface of the three-way flange is used to communicate with the water inlet of the water cabinet 3. The connection manner of the water return pipe of the power control cabinet 2 is the same as that of the water inlet pipe.

[0046] Figure 5 The structural diagram of an IGCT module provided in an embodiment of the present invention is shown as Figure 5 shown. In one embodiment, the IGCT hydrogen production power supply device may further include: a radiator arranged in the middle of the IGCT module 10, and a lifting and positioning device 17 arranged at the bottom of the radiator; the radiator is used to dissipate heat from the IGCT module 10; the lifting and positioning device 17 is used to support and position the radiator. The lifting and positioning device 17 is specifically used to position the radiator in the horizontal and vertical directions.

[0047] In one embodiment, the lifting and positioning device 17 includes a metal support frame, a rectangular insulating rod with a square groove processed, and an insulating square block. Figure 6 The structural diagram of a lifting and positioning device provided in an embodiment of the present invention is shown as Figure 6As shown in the figure, the lifting and positioning device 17 can be composed of two metal support frames, a rectangular insulating rod with a square groove processed on it, and an insulating square. The metal support frames are located on the left and right sides of the insulating rod. The insulating rod is on the metal support frames, and the insulating square is installed on the side of the insulating rod.

[0048] In one embodiment, the water distribution pipeline 8 is installed in sections in the power cabinet 1, the power control cabinet 2, and the water machine cabinet 3. Figure 7 This is a structural diagram of the water pipe from the water machine cabinet to the power cabinet provided in the embodiment of the present utility model. In the IGCT hydrogen production power supply device, the water machine cabinet 3 is provided with a water inlet pipe and a water return pipe. After the water inlet pipe and the water return pipe of the water machine cabinet 3 enter the power control cabinet 2, they are respectively connected to the vertical interfaces of the water inlet pipe and the water return pipe three-way flange in the power control cabinet 2.

[0049] In one embodiment, a plurality of water nozzles are respectively arranged on the water inlet pipe and the water return pipe; both the water inlet pipe and the water outlet pipe are two, and are arranged in two rows. The water inlet pipe is arranged in two rows and is respectively connected to the water inlet of the IGCT module 10 and the DC reactor 12 in two rows of power components. The water outlet pipe is arranged in two rows and is respectively connected to the water outlet of the IGCT module 10 and the DC reactor 12 in two rows of power components. The two rows of water outlet pipes are respectively connected to the two rows of water inlet pipes, and the two rows of water outlet pipes are located above the two rows of water inlet pipes.

[0050] In one embodiment, the water inlet pipe in the water machine cabinet 3 connected to the water machine 7 is connected to the water inlet pipe in the power control cabinet 2 through a three-way flange; the water outlet pipe in the water machine cabinet 3 connected to the water machine 7 is connected to the water outlet pipe in the power control cabinet 2 through a three-way flange.

[0051] In summary, compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model includes a power cabinet, a power control cabinet, a water machine cabinet, an AC bus, and a DC bus; the number of power cabinets is multiple, and each power cabinet is provided with multiple power components; all the power components in the power cabinet are arranged in two rows, and a maintenance passage is arranged between the two rows of power components; the power control cabinet includes: power components and a control component electrically connected to the power module; a water machine is arranged in the water machine cabinet, and the water machine is connected with a water distribution pipeline, and the water distribution pipeline includes a water inlet pipe and a water outlet pipe, and both the water inlet pipe and the water outlet pipe are connected to the water machine to form a loop; the power cabinet, the power control cabinet, and the water machine cabinet are arranged in parallel in sequence and are connected by parallel cabinet bolts; the AC bus is erected on the top of the cabinets of the power cabinet, the power control cabinet, and the water machine cabinet; the DC bus is erected on the top of the cabinets of the power cabinet, the power control cabinet, and the water machine cabinet, which can provide a power supply device with a smaller occupied volume, a simple structure, convenient installation and maintenance, high reliability, and low cost.

[0052] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An IGCT hydrogen production power supply device, characterized in that: include: Power cabinet (1), power control cabinet (2), water cabinet (3), AC bus (4), DC bus (5); There are multiple power cabinets (1), and each power cabinet (1) is provided with multiple power components; all power components in the power cabinet (1) are arranged in two rows, and an inspection channel is provided between the two rows of power components; The power control cabinet (2) comprises: a power component and a control component (6) electrically connected to the power component; A water machine (7) is arranged in the water machine cabinet (3), and the water machine (7) is connected to a water distribution pipeline (8), and the water distribution pipeline (8) includes a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both connected to the water machine (7) to form a loop; The power cabinet (1), the power control cabinet (2) and the water machine cabinet (3) are arranged in parallel in sequence and connected by cabinet bolts; An AC busbar (4) is installed on the top of the cabinets of the power cabinet (1), the power control cabinet (2) and the water cabinet (3); a DC busbar (5) is installed on the bottom of the cabinets of the power cabinet (1), the power control cabinet (2) and the water cabinet (3); the AC busbar (4) is connected to the input ends of the power components of the power cabinet (1) and the power control cabinet (2), respectively, and the DC busbar (5) is connected to the output ends of the power components of the power cabinet (1) and the power control cabinet (2), respectively.

2. The device according to claim 1, characterized in that The AC busbar (4) is fixed to the top of the cabinets of the power cabinet (1), the power control cabinet (2) and the water cabinet (3) by an insulating plate; and the DC busbar (5) is fixed to the bottom of the cabinets of the power cabinet (1), the power control cabinet (2) and the water cabinet (3) by an insulating plate.

3. The device according to claim 1, characterized in that The power assembly comprises: an IGCT module (10), an AC circuit breaker (11), a DC circuit breaker (13), two DC reactors (12), a positive and negative current busbar, an AC incoming copper busbar (9), and a DC outgoing copper busbar (14); The AC busbar (4) is connected to the input end of the AC circuit breaker (11) through an AC incoming copper bar (9); the output end of the AC circuit breaker (11) is connected to the AC interface of the IGCT module (10); the DC interface of the IGCT module (10) is provided with a positive and negative current busbar; the positive and negative current busbars are respectively connected to the input ends of two DC circuit breakers (13); the output end of the DC circuit breaker (13) is connected to the incoming end of the DC reactor (12); the outgoing end of the DC reactor (12) is connected to the DC busbar (5) through a DC outgoing copper bar (14); the DC outgoing copper bar (14) passes through the bottom of the power cabinet and is placed outside the power cabinet; The IGCT module (10), the AC circuit breaker (11), the DC circuit breaker (13), two DC reactors (12), the positive and negative current busbars, the AC incoming copper busbar (9) and the DC outgoing copper busbar (14) in the power assembly are arranged in two rows, and an inspection channel is arranged in the middle of the power assembly.

4. The device according to claim 3, characterized in that The power cabinet (1) also includes: a copper bar arranged between a DC circuit breaker (13) and a DC reactor (12); a current sensor is installed on the copper bar; the current sensor is a U-shaped device; the copper bar passes through the middle of the U-shaped current sensor; and the current sensor is used to send current information of the circuit to the control component (6).

5. The device according to claim 3, characterized in that The AC incoming copper bar (9) is fixed to the top of the power cabinet (1) by an insulating plate; the AC incoming copper bar (9) comprises a plurality of U-shaped copper bars, and there is a height difference between the plurality of U-shaped copper bars.

6. The device according to claim 5, characterized in that The AC incoming copper busbar (9) is provided with a through hole for installing the incoming cable.

7. The device according to claim 5, characterized in that When the number of power cabinets (1) is an even number, every two adjacent power cabinets (1) are regarded as a group and are connected in parallel via a parallel copper busbar, and the incoming cable is directly connected to the parallel copper busbar; when the number of power cabinets (1) is an odd number, the incoming cable is connected to the AC incoming copper busbar (9) on the top of the power cabinet (1) without an adjacent power cabinet.

8. The device according to claim 1, characterized in that Also includes: A radiator is arranged in the middle of the IGCT module (10), and a lifting and positioning device (17) is arranged at the bottom of the radiator; the radiator is used to dissipate heat from the IGCT module (10); and the lifting and positioning device (17) is used to support and position the radiator.

9. The device according to claim 8, characterized in that The lifting and positioning device (17) comprises a metal support frame, an insulating rod and an insulating block; the metal support frame is located on the left and right sides of the insulating rod, the insulating rod is on the metal support frame, and the insulating block is installed on the side of the insulating rod.

10. The device according to claim 1, characterized in that A plurality of water nozzles are respectively arranged on the water inlet pipe and the water return pipe; there are two water inlet pipes and two water outlet pipes, which are arranged in two rows; two rows of water inlet pipes are arranged, respectively connecting the water inlets of the IGCT modules (10) and the DC reactors (12) in the two rows of power components; two rows of water outlet pipes are arranged, respectively connecting the water outlets of the IGCT modules (10) and the DC reactors (12) in the two rows of power components; two rows of water outlet pipes are respectively connected to the two rows of water inlet pipes, and the two rows of water outlet pipes are located above the two rows of water inlet pipes.

11. The device according to claim 10, characterized in that The water distribution pipeline (8) is installed in sections in the power cabinet (1), the power control cabinet (2) and the water machine cabinet (3).

12. The device according to claim 11, characterized in that The water inlet pipe in the water machine cabinet (3) connected to the water machine (7) is communicated with the water inlet pipe in the power control cabinet (2) via a three-way flange; the water outlet pipe in the water machine cabinet (3) connected to the water machine (7) is communicated with the water outlet pipe in the power control cabinet (2) via a three-way flange.

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