CN109861557A - A kind of tandem type middle-and-high voltage system - Google Patents
A kind of tandem type middle-and-high voltage system Download PDFInfo
- Publication number
- CN109861557A CN109861557A CN201811596813.6A CN201811596813A CN109861557A CN 109861557 A CN109861557 A CN 109861557A CN 201811596813 A CN201811596813 A CN 201811596813A CN 109861557 A CN109861557 A CN 109861557A
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- power conversion
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- gantries
- conversion modules
- direct current
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Abstract
The invention discloses a kind of tandem type middle-and-high voltage systems, there are two partitions for setting in the cabinet body, it is blocked that cabinet body is divided into A by two partitions, B is blocked, C is blocked, equal vertical array has multiple power conversion modules shells in each partition, and power conversion modules housing high pressure side is provided with two rows of alternating current inlet wire gantries connected two-by-two；Power conversion modules housing low pressure side is provided with two direct current outlet gantries；A is blocked, and B is blocked, is provided with two DC bus gantries between C is blocked, two direct current outlet gantries of each partition are connected with two DC bus gantries respectively；The power conversion modules shell uses insulating materials.The present invention improves the maintainability of integral product；Increase power density, reliability and the flexibility of power cabinet.
Description
Technical field
The present invention relates to a kind of tandem type middle-and-high voltage systems, belong to mesohigh electrical equipment technical field.
Background technique
With the development of power electronics industry, the demand of powerful device constantly increases, and the heat dissipation of low-voltage, high-current is difficult
Spend bigger, therefore high pressure low current is trend popular in the industry；High pressure SVG, high-voltage frequency converter are all using multiple moulds
Block series boosting, using forced air cooling technology.
Current cascade high voltage module is mostly metal shell, and block supports beam uses high-strength insulating material, module and mould
To guarantee enough safe distances between block, to prevent disruptive discharge etc. from occurring, undoubtedly increase cost and space in this way, this is right
It is very big waste for power equipment.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, the present invention provides a kind of tandem type middle-and-high voltage system.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of tandem type middle-and-high voltage system, comprising: cabinet body, setting is there are two partition in the cabinet body, and two partitions are by cabinet body point
It is blocked to be segmented into A, B is blocked, and C is blocked, and equal vertical array there are multiple power conversion modules shells in each partition, and power becomes
Mold changing block housing high pressure side is provided with two rows of alternating current inlet wire gantries connected two-by-two；Power conversion modules housing low pressure side is provided with
Two direct current outlet gantries；A is blocked, and B is blocked, is provided with two DC bus gantries between C is blocked, each partition
Two direct current outlet gantries are connected with two DC bus gantries respectively；The power conversion modules shell uses insulation material
Material.
Preferably, the power conversion modules shell is not less than 600 using CTI, dielectric strength > 3Kv/mm's
Solid insulating material.
Preferably, the power conversion modules shell is inside and outside is coated with conductive paint.
Preferably, the power conversion modules shell by baffle by enclosure interior be divided into high-tension circuit chamber,
Isolating transformer chamber, low-voltage circuit chamber.
Preferably, the high-tension circuit chamber, be provided with connecting terminal on the shell outside low-voltage circuit chamber.
Preferably, the high-tension circuit chamber, low-voltage circuit chamber are provided with away line groove at port.
Preferably, power conversion circuit, power conversion circuit packet are provided in the power conversion modules shell
Include: alternating current inlet wire end exchanges leading-out terminal, direct current output anode, direct current output negative terminal, and power becomes in multiple power conversion modules shells
Change the alternating current inlet wire end of circuit, exchange leading-out terminal passes through alternating current inlet wire gantry connected two-by-two respectively and is connected, first power
The alternating current inlet wire end of translation circuit is connected with ac bus, and the exchange leading-out terminal of most one power conversion modules is connected with each other
It connects；The direct current output anode of power conversion circuit, direct current output negative terminal pass through two directly respectively in multiple power conversion modules shells
Outflow line gantry is connected with the bus in two DC bus gantries.
The utility model has the advantages that a kind of tandem type middle-and-high voltage system provided by the invention, advantage are as follows:
1, individual module can be replaced at any time, improve the maintainability of integral product；
2, internal circuit with it is external completely isolated, the assembly between module and module can be closely packed together, the structure of system
It is very compact, increase the power density and reliability of power cabinet；
3, the modularized design of product, according to different voltage class requirements, different number of modules of arranging in pairs or groups, design be can adjust
Property is more flexible.
Detailed description of the invention
Fig. 1 is the cabinet body high-pressure side structural schematic diagram of this system；
Fig. 2 is the cabinet body low-side arrangement schematic diagram of this system；
Fig. 3 is the structural schematic diagram of power conversion modules housing conductive paint；
Fig. 4 is power conversion modules housing interior structure schematic diagram；
Fig. 5 is the structural schematic diagram of power conversion modules shell；
Fig. 6 is the circuit structure diagram of tandem type middle-and-high voltage system.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figs. 1-2, a kind of tandem type middle-and-high voltage system, comprising: cabinet body 1, there are two partitions for setting in the cabinet body 1
2, cabinet body 1 is divided into that A is blocked, and B is blocked by two partitions 2, and C is blocked, and equal vertical array has multiple function in each partition
Rate conversion module shell 3,3 high-pressure side of power conversion modules shell are provided with two rows of alternating current inlet wire gantries 4 connected two-by-two；Power
4 low-pressure side of conversion module shell is provided with two direct current outlet gantries 5；A is blocked, and B is blocked, is provided between C is blocked
Two direct current outlet gantries 5 of two DC bus gantries 6, each partition are connected with two DC bus gantries 6 respectively；Institute
Power conversion modules shell 3 is stated using insulating materials.
The power conversion modules shell 3 is not less than 600 solid insulating material, such as FRP, glass reinforced plastic using CTI,
The dielectric strength > 3Kv/mm of insulating materials is sought, to reach the insulating requirements of mesohigh.
As shown in figure 3, the power conversion modules shell 3 is inside and outside to be coated with conductive paint 7, play the role of shielded layer,
It avoids high-tension circuit electric discharge by the air breakdown of high input voltage side and low pressure input side, improves the shield effectiveness of entire module, keep away
Exempt from high-tension circuit and passes through insulation shell for air breakdown in adjacent module, the electric conductors such as conductive paint such as zinc or metalwork.
As shown in figure 4, the power conversion modules shell 3 by baffle by enclosure interior be divided into high-tension circuit chamber, every
From transformer chamber, low-voltage circuit chamber.
As shown in figure 5, being provided with connecting terminal 8 on shell outside the high-tension circuit chamber, low-voltage circuit chamber；
The high-tension circuit chamber, low-voltage circuit chamber are provided with away line groove 9 at port, for convenient for wiring.
As shown in fig. 6, being provided with power conversion circuit 10, power conversion circuit 10 in the power conversion modules shell 3
It include: alternating current inlet wire end, exchange leading-out terminal, direct current output anode, direct current output negative terminal, multiple 3 internal strengths of power conversion modules shell
The alternating current inlet wire end of rate translation circuit 10, exchange leading-out terminal pass through alternating current inlet wire gantry 4 connected two-by-two respectively and are connected, and first
The alternating current inlet wire end of a power conversion circuit is connected with ac bus, and the exchange leading-out terminal of most one power conversion modules is each other
It is connected；The direct current output anode of power conversion circuit 10, direct current output negative terminal pass through respectively in multiple power conversion modules shells 3
Two direct current outlet gantries 5 are connected with the bus in two DC bus gantries 6.
Embodiment:
In use, can to arrive 10KV, 35KV even higher for this system voltage, by shell insulating Design, can to avoid operation or
The corona that occurs in test, climbs the insulation faults such as electricity at disruptive discharge.High-pressure section is from rear portion HV Terminal inlet wire, by high frequency
Transformer outlet from shell nozzle enters low-pressure side, finally goes out from the front end low voltage outlet terminals of shell by low-voltage circuit
It goes, the integrality of high-low pressure insulating materials has been completely secured, improve the shield effectiveness of entire insulating materials.And after high pressure is placed on
End, low pressure are placed on front end, and reasonable design can ensure the safety to human body.
The conductive physical efficiency such as enclosure coater metal is played the role of into ground connection well；The ground connection of product case is extremely important,
Equipment is connected with the earth and can ensure that the personal safety of test job personnel in debugging process, our outer applications of insulation shell are not
It is only capable of playing the role of shielding action well, can also link together well with cabinet and play ground connection.
Present cascade structure disperses heat, and individual module is solved using air-cooled technology, reduces cost with risk.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of tandem type middle-and-high voltage system, comprising: cabinet body, it is characterised in that: partition there are two settings in the cabinet body, two
Cabinet body is divided into that A is blocked, and B is blocked by partition, and C is blocked, and equal vertical array has multiple power conversion moulds in each partition
Block shell, power conversion modules housing high pressure side are provided with two rows of alternating current inlet wire gantries connected two-by-two；Power conversion modules shell
Body low-pressure side is provided with two direct current outlet gantries；A is blocked, and B is blocked, is provided with two DC bus between C is blocked
Two direct current outlet gantries of gantry, each partition are connected with two DC bus gantries respectively；The power conversion modules
Shell uses insulating materials.
2. a kind of tandem type middle-and-high voltage system according to claim 1, it is characterised in that: the power conversion modules shell
It is not less than 600 using CTI, the solid insulating material of dielectric strength > 3Kv/mm.
3. a kind of tandem type middle-and-high voltage system according to claim 1, it is characterised in that: the power conversion modules shell
It is inside and outside to be coated with conductive paint.
4. a kind of tandem type middle-and-high voltage system according to claim 1, it is characterised in that: the power conversion modules shell
Enclosure interior is divided into high-tension circuit chamber, isolating transformer chamber, low-voltage circuit chamber by baffle.
5. a kind of tandem type middle-and-high voltage system according to claim 4, it is characterised in that: the high-tension circuit chamber, low pressure
Connecting terminal is provided on shell outside circuit chamber.
6. a kind of tandem type middle-and-high voltage system according to claim 4, it is characterised in that: the high-tension circuit chamber, low pressure
Circuit chamber is provided with away line groove at port.
7. a kind of tandem type middle-and-high voltage system according to any one of claims 1 to 6, it is characterised in that: the power becomes
It changes and is provided with power conversion circuit in module housing, power conversion circuit includes: that alternating current inlet wire end, exchange leading-out terminal, direct current are defeated
Anode, direct current output negative terminal out, the alternating current inlet wire end of power conversion circuit, exchange leading-out terminal point in multiple power conversion modules shells
It is not connected by alternating current inlet wire gantry connected two-by-two, alternating current inlet wire end and the ac bus phase of first power conversion circuit
Connection, the exchange leading-out terminal of most one power conversion modules are connected to each other；Power conversion electricity in multiple power conversion modules shells
Direct current output anode, the direct current output negative terminal on road pass through the mother in two direct current outlet gantries and two DC bus gantries respectively
Line is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596813.6A CN109861557A (en) | 2018-12-26 | 2018-12-26 | A kind of tandem type middle-and-high voltage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596813.6A CN109861557A (en) | 2018-12-26 | 2018-12-26 | A kind of tandem type middle-and-high voltage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109861557A true CN109861557A (en) | 2019-06-07 |
Family
ID=66892344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811596813.6A Withdrawn CN109861557A (en) | 2018-12-26 | 2018-12-26 | A kind of tandem type middle-and-high voltage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109861557A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821722A (en) * | 2019-10-31 | 2021-05-18 | 台达电子企业管理（上海）有限公司 | Power conversion system |
| CN113890309A (en) * | 2021-08-26 | 2022-01-04 | 华为数字能源技术有限公司 | Power module and power supply system |
| WO2022183479A1 (en) * | 2021-03-05 | 2022-09-09 | 华为数字能源技术有限公司 | Solid-state transformer, power supply device and data center |
| US11477920B2 (en) | 2019-10-31 | 2022-10-18 | Delta Electronics (Shanghai) Co., Ltd | Power module |
| WO2023146283A1 (en) * | 2022-01-28 | 2023-08-03 | 엘에스일렉트릭 주식회사 | Semiconductor transformer and modular high-voltage power device |
| US11783987B2 (en) | 2019-10-31 | 2023-10-10 | Delta Electronics (Shanghai) Co., Ltd | Transformer and power module including the same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112821722A (en) * | 2019-10-31 | 2021-05-18 | 台达电子企业管理（上海）有限公司 | Power conversion system |
| CN112821722B (en) * | 2019-10-31 | 2022-07-19 | 台达电子企业管理（上海）有限公司 | Power conversion system |
| US11477920B2 (en) | 2019-10-31 | 2022-10-18 | Delta Electronics (Shanghai) Co., Ltd | Power module |
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| US11783987B2 (en) | 2019-10-31 | 2023-10-10 | Delta Electronics (Shanghai) Co., Ltd | Transformer and power module including the same |
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| CN113890309A (en) * | 2021-08-26 | 2022-01-04 | 华为数字能源技术有限公司 | Power module and power supply system |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190607 |
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