CN206894237U - A kind of low-voltage direct power distribution network special purpose device - Google Patents
A kind of low-voltage direct power distribution network special purpose device Download PDFInfo
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- CN206894237U CN206894237U CN201720638952.5U CN201720638952U CN206894237U CN 206894237 U CN206894237 U CN 206894237U CN 201720638952 U CN201720638952 U CN 201720638952U CN 206894237 U CN206894237 U CN 206894237U
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- special purpose
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Abstract
The utility model discloses a kind of low-voltage direct power distribution network special purpose device, including accumulation power supply, TRT, bulk power grid, converter and knife switch converter, the accumulation power supply, TRT and bulk power grid are electrically connected with intelligent control system, and overall energy supply has EMS offer, converter is to dc bus between accumulation power supply connection direct current, the dc bus is connected with TRT and bulk power grid by DC-AC converter respectively, mounting converter between the knife switch converter and load device.The low-voltage direct power distribution network special purpose device, during scheduling is overall electrically, more possesses intellectuality；The device of overall operation energy is provided, independent adult, no longer influences the operating of entirety；And the conversion process addition safety assurance of low pressure so that it is unexpected no longer to occur, be more favorable for the operation of staff, overall operation it is more smooth.
Description
Technical field
DC distribution net correlative technology field is the utility model is related to, specially a kind of special dress of low-voltage direct power distribution network
Put.
Background technology
The power distribution network studied both at home and abroad at present is mostly AC network, and the control for each distributed power source requires higher,
And more inverters are needed, cause the significant wastage of power electronic devices.In order to reduce the requirement to control, at the same it is maximum
Is of great significance using distributed energy, saving power electronic devices, the research tool of DC distribution net to limit.And
In current distribution network, the effect of excessive participant's power, the autonomous type regulation and control of high intelligence are not had, moreover, regulating and controlling
, it is necessary to which power, the electric power of itself do not possess the resource of complementary energy in journey, therefore occur a lot slow in action, for a long time can not
Enough so that the dispatching of direct current is quickly passed on, efficiency is too low.
The content of the invention
The purpose of this utility model is to provide a kind of low-voltage direct power distribution network special purpose device, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the utility model provides following technical scheme：A kind of low-voltage direct power distribution network special purpose device,
Including accumulation power supply, TRT, bulk power grid, converter and knife switch converter, the accumulation power supply, TRT and big
Power network is by being electrically connected with converter, and after converted device switching current, overall direct current is electrically transferred to knife switch conversion
Device, load device being passed to, the accumulation power supply, TRT and bulk power grid are electrically connected with intelligent control system, and overall
Energy supply has an EMS offer, and converter is to dc bus, the direct current between the accumulation power supply connection direct current
Bus is connected with TRT and bulk power grid by DC-AC converter respectively, the knife switch converter and load device
Between mounting converter.
Preferably, balance of voltage device is provided between dc bus and the knife switch converter to adjust voltage.
Preferably, the dc bus uses 750V dc bus.
Preferably, the accumulation power supply includes Combined storage battery super capacitor.
Compared with prior art, the beneficial effects of the utility model are：The low-voltage direct power distribution network special purpose device, is being dispatched
During entirety is electrical, more possesses intellectuality；The device of overall operation energy is provided, independent adult, no longer influenceed overall
Operating；And the conversion process addition safety assurance of low pressure so that it is unexpected no longer to occur, it is more favorable for the behaviour of staff
Make, overall operation it is more smooth.
Brief description of the drawings
Fig. 1 is architecture system block diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
In description of the present utility model, it is necessary to explanation, the side of the instruction such as term " vertical ", " on ", " under ", " level "
Either position relationship is based on orientation shown in the drawings or position relationship for position, is for only for ease of description the utility model and letter
Change description, rather than instruction either implies that signified device or element must have specific orientation, with specific orientation structure
Make and operate, therefore it is not intended that to limitation of the present utility model.In addition, " first ", " second ", " the 3rd ", " the 4th " are only
For descriptive purposes, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it is also necessary to explanation, unless otherwise clear and definite regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection ", should be interpreted broadly, for example, it may be connecting or being fixedly connected or removable
Connection, or integrally connected are unloaded, can be mechanical connection or electrical connection, can be directly connected to or in
Between medium be connected, can be the connection of two element internals.For the ordinary skill in the art, can be according to specific
Situation understands concrete meaning of the above-mentioned term in the utility model.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of low-voltage direct power distribution network special purpose device, including
Accumulation power supply, TRT, bulk power grid, converter and knife switch converter, the accumulation power supply, TRT and bulk power grid
By being electrically connected with converter, after converted device switching current, overall direct current is electrically transferred to knife switch converter, passes
Enter load device, the accumulation power supply includes Combined storage battery super capacitor, and the accumulation power supply, TRT and bulk power grid are equal
Intelligent control system is electrically connected with, and overall energy supply has EMS offer, the accumulation power supply connection is directly
Converter uses 750V dc bus to dc bus, the dc bus between stream, and the dc bus converts with knife switch
Balance of voltage device is provided between device to adjust voltage, the dc bus passes through DC-AC with TRT and bulk power grid respectively
Converter connects, mounting converter between the knife switch converter and load device.
Operation principle：The low-voltage direct power distribution network special purpose device, using intelligent control system, transfer the storage in accumulation power supply
Battery pack and super capacitor regulate and control bulk power grid and TRT through straight by the dc bus of converter between direct current to 750V
Flow a-c transducer and reach 750V dc bus, it is same to flow backward through balance of voltage device pressure control, then the tune in knife switch converter
Under control, it is converted into direct current or alternating current steps into load device, the energy supply during overall transfer, by energy management
System provides.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of low-voltage direct power distribution network special purpose device, including accumulation power supply, TRT, bulk power grid, converter and plug-in strip are opened
Converter is closed, the accumulation power supply, TRT and bulk power grid are by being electrically connected with converter, converted device switching current
Afterwards, overall direct current is electrically transferred to knife switch converter, is passed to load device, it is characterised in that：The accumulation power supply, hair
Electric installation and bulk power grid are electrically connected with intelligent control system, and overall energy supply has EMS offer, institute
Converter passes through straight with TRT and bulk power grid respectively to dc bus, the dc bus between stating accumulation power supply connection direct current
Flow a-c transducer connection, mounting converter between the knife switch converter and load device.
A kind of 2. low-voltage direct power distribution network special purpose device according to claim 1, it is characterised in that：The dc bus with
Balance of voltage device is provided between knife switch converter to adjust voltage.
A kind of 3. low-voltage direct power distribution network special purpose device according to claim 1, it is characterised in that：The dc bus is adopted
With 750V dc bus.
A kind of 4. low-voltage direct power distribution network special purpose device according to claim 1, it is characterised in that：The accumulation power supply bag
Include Combined storage battery super capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638952.5U CN206894237U (en) | 2017-06-03 | 2017-06-03 | A kind of low-voltage direct power distribution network special purpose device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638952.5U CN206894237U (en) | 2017-06-03 | 2017-06-03 | A kind of low-voltage direct power distribution network special purpose device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206894237U true CN206894237U (en) | 2018-01-16 |
Family
ID=61320085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720638952.5U Expired - Fee Related CN206894237U (en) | 2017-06-03 | 2017-06-03 | A kind of low-voltage direct power distribution network special purpose device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206894237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737132A (en) * | 2021-01-12 | 2021-04-30 | 深圳市远信储能技术有限公司 | Modular energy storage integrated system |
-
2017
- 2017-06-03 CN CN201720638952.5U patent/CN206894237U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737132A (en) * | 2021-01-12 | 2021-04-30 | 深圳市远信储能技术有限公司 | Modular energy storage integrated system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20190603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |