CN113541509B - Flexible and straight suspension valve tower integrated with light power module - Google Patents
Flexible and straight suspension valve tower integrated with light power module Download PDFInfo
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- CN113541509B CN113541509B CN202110953963.3A CN202110953963A CN113541509B CN 113541509 B CN113541509 B CN 113541509B CN 202110953963 A CN202110953963 A CN 202110953963A CN 113541509 B CN113541509 B CN 113541509B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The invention provides a flexible straight suspension valve tower integrated with a lightweight power module, which comprises: the system comprises a plurality of valve layer structures, a suspension structure, a plurality of power modules and a plurality of branch water pipes; the suspension structure adopts a lifting rope mode; the valve layer structures are connected with the suspension structure through hole pins from top to bottom; a plurality of power modules are arranged in any valve layer structure; the power module includes a support structure and a bypass switch; the support structure comprises a direct-current capacitor and a switching metal plate, and the switching metal plate integrates the power module, the bypass switch and the direct-current capacitor; the bypass switch comprises a vacuum tube, a main switching-on mechanism and an auxiliary switching-on mechanism, wherein the vacuum tube comprises a first fracture and a second fracture, and the main switching-on mechanism and the auxiliary switching-on mechanism are judged by adopting mutual coupling logic to perform action switching-on; and the cooling water channels among the power modules are connected in a mode of connecting a plurality of branch water pipes in series and parallel in a crossed manner. The invention has high structural strength and strong operation reliability.
Description
Technical Field
The invention relates to the field of power systems, in particular to a flexible straight suspension valve tower integrated with a lightweight power module.
Background
With the continuous improvement and adjustment of energy system structure, the global demand for green and environment-friendly renewable energy is increasing. In this century, wind power generation is one of renewable energy technologies with the largest development scale and the highest degree of commercialization, and shows a vigorous development situation, and wind power development gradually goes from the land to the sea and from the inshore to the open sea. The flexible direct-current transmission technology is one of the best solutions for wind power renewable energy grid connection as a novel direct-current transmission technology, and the core equipment of the flexible direct-current transmission technology is more widely researched, popularized and applied.
Compared with foreign flexible-straight converter valves and engineering applications in China, the flexible-straight converter valve and the engineering applications in China start late, but the flexible-straight converter valve and the engineering applications develop rapidly. At present, a converter valve tower is mainly of a supporting structure and is a frame structure formed by sequentially connecting valve sections of the valve tower in series from the ground upwards through a post insulator. With the increase of voltage class and transmission capacity, the weight of a single valve tower is changed from the first ten and several tons to about one hundred tons, the height of the valve tower is also changed from below 5 meters to above 15 meters, and the number of power modules is also increased from several hundreds to thousands. The weight and height of the valve tower change, which brings great challenges to the vibration resistance, fatigue resistance and daily maintenance of the whole valve tower in a complex application environment; the increasing number of converter valve power modules also seriously affects the reliability of the equipment.
Disclosure of Invention
The embodiment of the invention provides a flexible straight suspension valve tower integrated with a lightweight power module, which has high structural strength and strong operation reliability and comprises the following components:
the system comprises a plurality of valve layer structures, a suspension structure, a plurality of power modules and a plurality of branch water pipes;
the suspension structure adopts a lifting rope mode;
the valve layer structures are connected with the suspension structure through hole pins from top to bottom;
a plurality of power modules are arranged in any valve layer structure;
the power module includes a support structure and a bypass switch;
the support structure comprises a direct-current capacitor and a switching metal plate, and the switching metal plate integrates the power module, the bypass switch and the direct-current capacitor;
the bypass switch comprises a vacuum tube, a main switching-on mechanism and an auxiliary switching-on mechanism, wherein the vacuum tube comprises a first fracture and a second fracture, and the main switching-on mechanism and the auxiliary switching-on mechanism are judged by adopting mutual coupling logic to perform action switching-on;
and cooling water channels among the power modules are connected in a mode of connecting a plurality of branch water pipes in series and parallel in a crossed mode.
The flexible straight suspension valve tower integrated with the lightweight power module provided by the embodiment of the invention has the following beneficial effects:
the suspension structure adopts a lifting rope mode; the valve layer structures are connected with the suspension structure from top to bottom in a hole pin mode, the structure is compact, the weight is light, material consumption is reduced, and the manufacturing cost is reduced; in addition, the support structure comprises a direct current capacitor and a switching metal plate, and the switching metal plate integrates the power module, the bypass switch and the direct current capacitor, so that the converter valve is good in vibration resistance and convenient to maintain in a complex application environment; due to the design of the cooling water path between the bypass switch and the power module, under the condition of failure, the bypass design of the flexible and straight suspension valve tower of the integrated light power module is very reliable, and the reliability of the converter valve is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
FIG. 1 is an overall schematic view of a flexible straight suspension valve tower with integrated lightweight power modules in an embodiment of the invention;
FIG. 2 is a schematic view of a suspension structure in an embodiment of the invention;
FIG. 3 is a schematic diagram of a power module in an embodiment of the invention;
FIG. 4 is a schematic diagram of a bypass switch in an embodiment of the present invention;
FIG. 5 is a front view of a valve layer structure in an embodiment of the invention;
FIG. 6 is a left side view of a valve layer structure in an embodiment of the invention;
FIG. 7 is another front view of a valve layer structure in an embodiment of the invention;
fig. 8 is another left side view of a valve layer structure in an embodiment of the invention.
Description of the symbols of the drawings:
1-valve layer structure;
2-a power module;
3, an insulator;
4-a top water tube assembly;
5-top suspension rack;
6, insulating pull rods;
7-male lifting lug;
8, a female lifting lug;
9, inserting a pin;
10-an aluminum support;
11-a direct current capacitor;
111-dc capacitor jaw;
12-switching metal plates;
13-a power module;
14-a bypass switch;
141-a current terminal T1;
142-current terminal T2;
143-opening operation port;
15-a control box;
151-control box 1;
152 — control box 2;
153 — control box 3;
154-control box 4;
16-a power device;
17-a bypass switch controller;
18-heat sink interface;
19-branch water pipe;
191-a branch water pipe between power modules in the valve section;
192-valve intersegment branch water pipe;
193-connecting the branch water pipe with the interlayer main water pipe;
20-interlayer main water pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the description of the present specification, the terms "comprising," "including," "having," "containing," and the like are used in an open-ended fashion, i.e., to mean including, but not limited to. Reference to the description of the terms "one embodiment," "a particular embodiment," "some embodiments," "for example," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The sequence of steps involved in the embodiments is for illustrative purposes to illustrate the implementation of the present application, and the sequence of steps is not limited and can be adjusted as needed.
Fig. 1 to 6 are schematic views of a straight flexible suspension valve tower integrated with a lightweight power module according to an embodiment of the present invention, where fig. 1 is an overall schematic view of the straight flexible suspension valve tower integrated with the lightweight power module according to the embodiment of the present invention, fig. 2 is a schematic view of a suspension structure according to the embodiment of the present invention, fig. 3 is a schematic view of a power module according to the embodiment of the present invention, where (a) in fig. 3 is a front view of the power module, (b) in fig. 3 is a left side view of the power module, fig. 4 is a schematic view of a bypass switch according to the embodiment of the present invention, fig. 5 is a front view of a valve layer structure according to the embodiment of the present invention, fig. 6 is a left side view of the valve layer structure according to the embodiment of the present invention, fig. 7 is another front view of the valve layer structure according to the embodiment of the present invention, and fig. 8 is another left side view of the valve layer structure according to the embodiment of the present invention, and it can be seen from fig. 1 to 6 that the straight flexible suspension valve tower integrated with the lightweight power module comprises:
a plurality of valve layer structures 1, a suspension structure, a plurality of power modules 2 and a plurality of branch water pipes 19;
the suspension structure adopts a lifting rope mode;
the valve layer structures 1 are connected with the suspension structure from top to bottom in a hole pin mode;
a plurality of power modules 2 are arranged in any valve layer structure 1;
the power module 2 comprises a support structure and a bypass switch 14;
the supporting structure comprises a direct-current capacitor 11 and a switching metal plate 12, wherein the switching metal plate 12 integrates a power module 13, a bypass switch 14 and the direct-current capacitor 11;
the bypass switch 14 comprises a vacuum tube, a main switching-on mechanism and an auxiliary switching-on mechanism, wherein the vacuum tube comprises a first fracture F1 and a second fracture F2, and the main switching-on mechanism and the auxiliary switching-on mechanism adopt mutual coupling logic judgment to perform action switching-on;
the cooling water channels between the power modules 2 are connected in a way that a plurality of branch water pipes 19 are connected in series and in parallel in a crossing way.
In the above embodiment, the suspension structure adopts a lifting rope manner, and the valve layer structures 1 are connected with the suspension structure through a hole pin manner from top to bottom, so that the overall structure is more compact.
The supporting structure is based on the shell of the direct current capacitor 11, and then the power module 13, the bypass switch 14 and the direct current capacitor 11 are assembled into a whole through the switching metal plate 12, so that the supporting structure is stable and good in shock resistance.
In addition, the main closing mechanism and the auxiliary closing mechanism adopt mutual coupling logic judgment to perform action closing; the cooling water channels among the power modules 2 are connected in a mode that a plurality of branch water pipes 19 are connected in series in a crossed mode, so that a reliable bypass scheme of the power modules under the fault condition is provided, and the reliability of the flexible straight suspension valve tower of the integrated light power modules is improved.
In one embodiment, the flexible suspension valve tower of the integrated lightweight power module further comprises a valve tower top suspension bracket 5, wherein the valve tower top suspension bracket 5 comprises an insulator 3, a top waterway assembly 4 and an aluminum bracket 10;
the suspension structure is connected with the valve tower top suspension bracket 5.
In the above embodiment, the insulator 3, the top waterway assembly 4 and the aluminum bracket 10 are used for respectively forming the insulator 3 and the aluminum bracket 10 into a valve tower suspension structure, and are used for bearing the weight of the valve tower; the top waterway component 4 is an inlet and outlet pipeline of the waterway of the valve tower.
In one embodiment, the suspension structure is installed by adopting an insulated pull rod 6 and a male lifting lug 7 in a spaced series connection mode;
the valve layer structure 1 comprises a plurality of U-shaped female lifting lugs 8 positioned on two sides, and the U-shaped female lifting lugs 8 and the male lifting lugs 7 are assembled together through bolts 9.
The structure in the above-mentioned embodiment has further improved the compact of the structure of the gentle straight suspension valve tower of integrated light-dutyization power module, and whole light in weight has reduced the material consumptive material, has reduced manufacturing cost.
In an embodiment, the power module 2 further includes a power module 13, the power module 13 and the bypass switch 14 are arranged up and down, and the power module 13 includes a control card board, which is disposed at the periphery of the power module 2 and has a separate metal casing.
The control clamping plate is arranged on the periphery of the power module 2 and provided with an independent metal shell, so that the flexible and straight suspension valve tower integrated with the light power module is good in vibration resistance and convenient to maintain in a complex application environment.
In an embodiment, the required closing power of the bypass switch 14 is directly obtained from the dc capacitor 11 by a resistor voltage division method.
The taking-out mode of the required switching-on electric energy is convenient to use and more reliable.
In an embodiment, the dc capacitor 11 further includes a dc capacitor claw 111, which is a structural support base for the power module 13 and the bypass switch 14.
In one embodiment, the power module 13 further includes a plurality of power devices 16, a heat sink 18, and a press-fit structure;
the direction of the interface of the radiator 18 is outward, which is beneficial to the installation operation and the replacement of the aged sealing ring; the compression structure functions to maintain the compressive force of the power device 16.
In one embodiment, the bypass switch 14 further includes a first current connection terminal 141 and a second current connection terminal 142 located on both sides of the vacuum tube, and the first current connection terminal 141 and the second current connection terminal 142 are short-circuited inside the bypass switch 14;
the main closing mechanism and the auxiliary closing mechanism are axially distributed at two ends of the vacuum tube along the vacuum tube.
In an embodiment, the integrated lightweight power module flexible direct suspension valve tower further comprises a power module controller;
the power module 2 comprises also a bypass switch controller 17;
the main switching-on mechanism is controlled by a power module controller; under the condition that the main closing mechanism refuses to operate, when the voltage at two ends of a coil of the main closing mechanism reaches a design threshold, the bypass switch controller 17 automatically triggers the auxiliary closing mechanism to operate through logic judgment.
In an embodiment, the bypass switch 14 further includes a first electronic switch, a second electronic switch, and a plurality of current limiting resistors, wherein the coils of the main closing mechanism and the auxiliary closing mechanism are connected in series with the first electronic switch, the second electronic switch, and the plurality of current limiting resistors, and the first electronic switch and the second electronic switch are controlled by the bypass switch controller 17.
In an embodiment, the bypass switch 14 further includes a switching-off operation port 143, which is used for switching-off operation after the switch is closed.
In an embodiment, the power module 2 further includes a control box 15, and the control box 15 includes a first control box 151, a second control box 152, a third control box 153, and a fourth control box 154. The control box is used for installing a control board, shielding interference signals and enhancing electromagnetic compatibility, wherein a power module controller is arranged on the control board installed inside the first control box 151.
In one embodiment, the valve layer structure 1 comprises 2 valve sections and/or 4 valve sections, and the valve sections are arranged back to back;
the valve layer structure 1 is used for carrying out the crossing series-parallel connection of cooling water paths by taking 2 valve sections as units. The design has the advantages of saving pipeline materials, reducing flow and fully utilizing the cooling medium.
In one embodiment, the branch water pipes 19 include inter-power-module branch water pipes 191, inter-valve-section branch water pipes 192, and inter-layer main water pipe connecting pipe branch water pipes 193.
In one embodiment, the integrated lightweight power module compliant suspended valve tower further comprises inter-floor main water pipes 20.
The branch water pipe 19 and the interlayer main water pipe 20 are respectively used for water path connection between the power modules 2 in the valve layer structure 1 and water path connection between valve layers.
In summary, the flexible and straight suspension valve tower integrated with the lightweight power module provided by the embodiment of the invention has the following beneficial effects:
the suspension structure adopts a lifting rope mode; the valve layer structures are connected with the suspension structure from top to bottom in a hole pin mode, the structure is compact, the weight is light, material consumption is reduced, and the manufacturing cost is reduced; in addition, the support structure comprises a direct current capacitor and a switching metal plate, and the switching metal plate integrates the power module, the bypass switch and the direct current capacitor, so that the converter valve is good in vibration resistance and convenient to maintain in a complex application environment; due to the design of a cooling water path between the bypass switch and the power module, under the condition of failure, the bypass design of the flexible-straight suspension valve tower integrated with the light power module is very reliable, and the reliability of the converter valve is further improved.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and should not be used to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (15)
1. A flexible direct suspension valve tower integrating lightweight power modules, comprising: the system comprises a plurality of valve layer structures (1), a suspension structure, a plurality of power modules (2) and a plurality of branch water pipes (19);
the suspension structure adopts a lifting rope mode;
the valve layer structures (1) are connected with the suspension structure from top to bottom in a hole pin mode;
a plurality of power modules (2) are arranged in any valve layer structure (1);
the power module (2) comprises a support structure and a bypass switch (14);
the support structure comprises a direct-current capacitor (11) and a switching metal plate (12), wherein the switching metal plate (12) is used for assembling a power module (13), a bypass switch (14) and the direct-current capacitor (11) into a whole;
the bypass switch (14) comprises a vacuum tube, a main switching-on mechanism and an auxiliary switching-on mechanism, wherein the vacuum tube comprises a first fracture (F1) and a second fracture (F2), and the main switching-on mechanism and the auxiliary switching-on mechanism are judged by adopting mutual coupling logic to perform action switching-on;
and cooling water channels among the power modules (2) are connected in a mode of crossing, series and parallel connection of a plurality of branch water pipes (19).
2. The integrated lightweight power module compliant suspension valve tower of claim 1 further comprising a valve tower top suspension bracket (5), said valve tower top suspension bracket (5) comprising an insulator (3), a top waterway assembly (4) and an aluminum bracket (10);
the suspension structure is connected with the valve tower top suspension frame (5).
3. The flexible straight suspension valve tower of integrated lightweight power module according to claim 1, wherein the suspension structure is installed in series with the male lifting lug (7) at intervals using an insulated tie rod (6);
the valve layer structure (1) comprises a plurality of U-shaped female lifting lugs (8) located on two sides, and the U-shaped female lifting lugs (8) are assembled with the male lifting lugs (7) through bolts (9).
4. The integrated lightweight power module pylon according to claim 1 wherein the power module (2) further comprises a power module (13), the power module (13) and the bypass switch (14) are arranged one above the other, and the power module (13) comprises a control card provided at the periphery of the power module (2) and having a separate metal housing.
5. A flexible suspension tower of integrated lightweight power module according to claim 4, characterized in that the required closing power of the bypass switch (14) is taken directly from the DC capacitor (11) by means of resistive voltage division.
6. A flexible direct suspension valve tower of integrated lightweight power module according to claim 1, characterized in that said dc capacitors (11) further comprise dc capacitor claws (111).
7. A flexibly suspended valve tower of integrated lightweight power module according to claim 4, characterized in that said power module (13) further comprises a plurality of power devices (16), a heat sink (18) and a press-fit structure;
the interface of the heat sink (18) is directed outwards.
8. A flexible direct suspension valve tower of an integrated lightweight power module according to claim 1, characterized in that the bypass switch (14) further comprises a first through-flow terminal (141) and a second through-flow terminal (142) on both sides of the vacuum tube, the first through-flow terminal (141) and the second through-flow terminal (142) being short-circuited inside the bypass switch (14);
the main closing mechanism and the auxiliary closing mechanism are axially distributed at two ends of the vacuum tube along the vacuum tube.
9. The integrated lightweight power modular flexible direct suspension valve tower of claim 1 further comprising a power module controller;
the power module (2) comprises a bypass switch controller (17);
the main switching-on mechanism is controlled by a power module controller; under the condition that the main closing mechanism refuses to operate, when the voltage at two ends of a coil of the main closing mechanism reaches a design threshold value, the bypass switch controller (17) judges that the auxiliary closing mechanism is automatically triggered to operate through logic.
10. The integrated lightweight power module flexible direct suspension valve tower of claim 9 wherein said bypass switch (14) further comprises a first electronic switch, a second electronic switch and a plurality of current limiting resistors, wherein said main and auxiliary closing mechanism coils are connected in series with said first electronic switch, said second electronic switch and said plurality of current limiting resistors, and wherein said first electronic switch and said second electronic switch are controlled by said bypass switch controller (17).
11. The flexibly suspended valve tower of integrated lightweight power module according to claim 1, wherein said bypass switch (14) further comprises a opening operation port (143).
12. The integrated lightweight power module flexible direct suspension valve tower according to claim 1, wherein said power module (2) further comprises a control box (15), said control box (15) comprising a first control box (151), a second control box (152), a third control box 3 (153) and a fourth control box (154).
13. A flexible straight suspension valve tower of integrated lightweight power module according to claim 1, characterized in that the valve layer structure (1) comprises 2 valve sections and/or 4 valve sections, which are arranged back to back;
the valve layer structure (1) is formed by crossing and connecting cooling water paths in series by taking 2 valve sections as units.
14. The flexible direct suspension valve tower integrating lightweight power modules according to claim 1, wherein the branch water pipes (19) comprise inter-power-module branch water pipes (191) in the valve section, inter-valve-section branch water pipes (192), and inter-floor main water pipe connecting pipe branch water pipes (193).
15. The flexibly suspended valve tower of integrated lightweight power module according to claim 1, further comprising an inter-floor main water pipe (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110953963.3A CN113541509B (en) | 2021-08-19 | 2021-08-19 | Flexible and straight suspension valve tower integrated with light power module |
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| CN202110953963.3A CN113541509B (en) | 2021-08-19 | 2021-08-19 | Flexible and straight suspension valve tower integrated with light power module |
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| CN113541509B true CN113541509B (en) | 2022-10-21 |
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| CN114421409B (en) * | 2022-01-27 | 2024-01-23 | 国网智能电网研究院有限公司 | Valve tower of hybrid converter |
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