CN206293967U - A kind of system architecture of two sections of dc source buses Hot Spare each other - Google Patents
A kind of system architecture of two sections of dc source buses Hot Spare each other Download PDFInfo
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- CN206293967U CN206293967U CN201621394898.6U CN201621394898U CN206293967U CN 206293967 U CN206293967 U CN 206293967U CN 201621394898 U CN201621394898 U CN 201621394898U CN 206293967 U CN206293967 U CN 206293967U
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Abstract
The utility model embodiment discloses a kind of system architecture of two sections of dc source buses Hot Spare each other, for solving during exchange input decompression, this section of problem of dc bus dead electricity to be caused because there is open fault inside the current supply circuit or the Battery pack of single group battery.The utility model embodiment includes：First paragraph dc source bus, second segment dc source bus and intelligent bus bar connector；The intelligent bus bar connector includes monitoring unit and bidirectional, dc exchanger；The bidirectional, dc exchanger, for when the first paragraph dc source bus or second segment dc source bussed supply are abnormal, starting immediately and to the first paragraph dc source bus or second segment dc source bussed supply of faulty section.The bidirectional, dc exchanger is connected across between the first paragraph dc source bus and the second segment dc source bus；The monitoring unit is connected with the bidirectional, dc exchanger.
Description
Technical field
The utility model is related to the DC power system field such as power plant, transformer station, more particularly to a kind of two sections of direct currents
The system architecture of source bus Hot Spare each other.
Background technology
In order to ensure the safe operation of power system, power plant, the control of transformer station and protection equipment use direct current
Source powers.
At present, in double DC power systems for filling double electricity double-bus, between two sections of dc source buses only manually
Bus connection switch is realized backuping each other；When 380V power loss is exchanged, every section of dc source bus is only provided by 1 group storage battery
Power supply, will all cause this section of dc source bus to lose if occurring open fault inside the current supply circuit of the Battery pack or the Battery pack
Electricity, so as to cause various controls and protection device to be failed, expands the fault coverage of transformer station, and this system architecture cannot meet
The demand of DC power system safe power supply.
Therefore, the system architecture for finding a kind of two sections of dc source buses Hot Spare each other turns into those skilled in the art institute
The important topic of research.
Utility model content
The utility model embodiment provides a kind of system architecture of two sections of dc source buses Hot Spare each other, for solving
During exchange input decompression of having determined, this section of direct current is caused because there is open fault inside the current supply circuit or the Battery pack of single group battery
The problem of bus dead electricity.
The utility model embodiment provides a kind of system architecture of two sections of dc source buses Hot Spare each other, including：
First paragraph dc source bus, second segment dc source bus and intelligent bus bar connector；
The intelligent bus bar connector includes monitoring unit and bidirectional, dc exchanger；
The bidirectional, dc exchanger, for being supplied when the first paragraph dc source bus or second segment dc source bus
During electrical anomaly, start immediately and to the first paragraph dc source bus or second segment dc source bussed supply of faulty section；
It is female with the second segment dc source that the bidirectional, dc exchanger is connected across the first paragraph dc source bus
Between line；
The monitoring unit is connected with the bidirectional, dc exchanger.
Alternatively, also including the first power supply and second source；
The first paragraph dc source bus is attached with the first power supply；
The second segment dc source bus is attached with second source.
Alternatively, the intelligent bus bar connector also includes first energy-storage units and second energy-storage units；
The first energy-storage units are connected between the bidirectional, dc exchanger and first paragraph dc source bus；
The second energy-storage units are connected between the bidirectional, dc exchanger and second segment dc source bus.
Alternatively, the first paragraph dc source bus is connected by DC port with the bidirectional, dc exchanger
Connect；
The second segment dc source bus is attached by DC port with the bidirectional, dc exchanger.
Alternatively, first power supply is with second source and exchanges 380V power supplys.
Alternatively, the nominal voltage of the first paragraph dc source bus and the second segment dc source bus is
DC220V or DC110V.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model embodiment provides a kind of system architecture of two sections of dc source buses Hot Spare each other, including：
First paragraph dc source bus, second segment dc source bus and intelligent bus bar connector；The intelligent bus bar connector includes
Monitoring unit and bidirectional, dc exchanger；The bidirectional, dc exchanger, for when the first paragraph dc source bus or
When two sections of dc source bussed supplies are abnormal, start immediately and to the first paragraph dc source bus or second segment of faulty section
Dc source bussed supply.It is straight with the second segment that the bidirectional, dc exchanger is connected across the first paragraph dc source bus
Between stream power source bus；The monitoring unit is connected with the bidirectional, dc exchanger.This two sections of dc source buses are warm each other
The system architecture of backup, bridging has intelligent bus bar connector between the bus of two ends, when solving exchange input decompression, because of single group
Occur open fault inside the current supply circuit of battery or the Battery pack and cause this section of problem of dc bus dead electricity, improve power transformation
Stand the operational reliability of DC power system.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of two sections of dc source buses that Fig. 1 is provided for the utility model embodiment system architecture of Hot Spare each other
The concrete structure diagram of one embodiment；
A kind of two sections of dc source buses that Fig. 2 is provided for the utility model embodiment system architecture of Hot Spare each other
The structure chart of one embodiment；
Illustrate：Monitoring unit 1；First energy-storage units 2；Second energy-storage units 3；First paragraph dc source bus 4；The
Two sections of dc source buses 5；Intelligent bus bar connector 6.
Specific embodiment
The utility model embodiment provides a kind of system architecture of two sections of dc source buses Hot Spare each other, for solving
During exchange input decompression of having determined, this section of direct current is caused because there is open fault inside the current supply circuit or the Battery pack of single group battery
The problem of bus dead electricity.
To enable utility model purpose of the present utility model, feature, advantage more obvious and understandable, below will knot
The accompanying drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described,
Obviously, the embodiments described below are only a part of embodiment of the utility model, and not all embodiment.Based on this reality
With the embodiment in new, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, a kind of two sections of dc source buses that the utility model embodiment is provided Hot Spare each other
System architecture includes：First paragraph dc source bus 4, second segment dc source bus 5 and intelligent bus bar connector 6；
Intelligent bus bar connector 6 includes monitoring unit 1 and bidirectional, dc exchanger；
Bidirectional, dc exchanger, for when first paragraph dc source bus 4 or the abnormal electrical power supply of second segment dc source bus 5
When, start immediately and powered to the first paragraph dc source bus 4 or second segment dc source bus 5 of faulty section；
Bidirectional, dc exchanger is connected across between first paragraph dc source bus 4 and second segment dc source bus 5；
Monitoring unit 1 is connected with bidirectional, dc exchanger；
In the present embodiment, when certain section of DC bus powered loop is abnormal, backup functionality should be able to quickly start, it is ensured that direct current
Bus falls no more than straight-flow system permissible value；The two-way DC converter that energy flow direction can flexibly control, can also adopt
The function of realizing two-way DC converter is connected with two Unidirectional direct-current converter inverse parallels；The intelligent bus bar connector 6 has
Perfect Fault Isolation function, in plant failure, can be such that intelligent bus bar connector 6 isolates with dc bus；In dc bus
During upper load faulty, such as load short circuits or dc bus short circuit, intelligent bus bar connector 6 can isolate the failure, it is ensured that not shadow
Ring another section of operation of dc bus.
Further, also including the first power supply and second source；
First paragraph dc source bus 4 is attached with the first power supply；
Second segment dc source bus 5 is attached with second source.
Further, intelligent bus bar connector also includes first energy-storage units 2 and second energy-storage units 3；
First energy-storage units 2 are connected between bidirectional, dc exchanger and first paragraph dc source bus 4；
Second energy-storage units 3 are connected between bidirectional, dc exchanger and second segment dc source bus 5.
Further, first paragraph dc source bus 4 is attached by DC port with bidirectional, dc exchanger；
Second segment dc source bus 5 is attached by DC port with bidirectional, dc exchanger；
In the present embodiment, bidirectional, dc exchanger connect two sections of the two of dc bus DC ports electrically mutually every
From its addition does not influence two sections of state of insulations of dc bus.
Further, the first power supply is with second source and exchanges 380V power supplys.
Further, the nominal voltage of first paragraph dc source bus 4 and second segment dc source bus 5 be DC220V or
DC110V。
Above-mentioned is a kind of system tray of the two sections of dc source buses Hot Spare each other provided the utility model embodiment
The concrete structure of structure is described in detail, and this framework will be conducted further description in the method for an application below, please
Refering to Fig. 1 and Fig. 2, a kind of two sections of dc source buses that the utility model embodiment is provided system architecture of Hot Spare each other
One application examples includes：
The nominal voltage of first paragraph dc source bus and second segment dc source bus is DC220V or DC110V, is passed through
Monitoring unit in intelligent bus bar connector can set the output voltage of two-way DC converter and start voltage.When two sections it is straight
When stream bussed supply is normal, two-way DC converter is in the holding state of Hot Spare；When certain section it is DC bus powered abnormal and
When busbar voltage is less than the startup magnitude of voltage for setting, under the control of monitoring unit, two-way DC converter starts immediately, two-way
DC converter absorbs electric energy from normal dc bus section of powering, and the direct current of output to abnormal electrical power supply is female after isolating voltage stabilizing
Line segment, reaches the purpose of two sections of dc source buses stand-by heat each other.When the dc bus section of abnormal electrical power supply recovers normal power supply
Afterwards, intelligent bus bar connector automatically returns to Hot Spare holding state.
The above, above example is only used to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model has been described in detail according to previous embodiment, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technical scheme of the utility model
Spirit and scope.
Claims (6)
1. the system architecture of a kind of two sections of dc source buses Hot Spare each other, it is characterised in that including first paragraph dc source
Bus, second segment dc source bus and intelligent bus bar connector；
The intelligent bus bar connector includes monitoring unit and bidirectional, dc exchanger；
The bidirectional, dc exchanger, for when the first paragraph dc source bus or second segment dc source bussed supply it is different
Chang Shi, starts and to the first paragraph dc source bus or second segment dc source bussed supply of faulty section immediately；
The bidirectional, dc exchanger be connected across the first paragraph dc source bus and the second segment dc source bus it
Between；
The monitoring unit is connected with the bidirectional, dc exchanger.
2. the system architecture of two sections of dc source buses according to claim 1 Hot Spare each other, it is characterised in that also wrap
Include the first power supply and second source；
The first paragraph dc source bus is attached with the first power supply；
The second segment dc source bus is attached with second source.
3. the system architecture of two sections of dc source buses according to claim 1 Hot Spare each other, it is characterised in that described
Intelligent bus bar connector also includes first energy-storage units and second energy-storage units；
The first energy-storage units are connected between the bidirectional, dc exchanger and first paragraph dc source bus；
The second energy-storage units are connected between the bidirectional, dc exchanger and second segment dc source bus.
4. the system architecture of two sections of dc source buses according to claim 1 Hot Spare each other, it is characterised in that described
First paragraph dc source bus is attached by DC port with the bidirectional, dc exchanger；
The second segment dc source bus is attached by DC port with the bidirectional, dc exchanger.
5. the system architecture of two sections of dc source buses according to claim 2 Hot Spare each other, it is characterised in that described
First power supply is with second source and exchanges 380V power supplys.
6. the system architecture of two sections of dc source buses according to claim 1 Hot Spare each other, it is characterised in that described
The nominal voltage of first paragraph dc source bus and the second segment dc source bus is DC220V or DC110V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394898.6U CN206293967U (en) | 2016-12-19 | 2016-12-19 | A kind of system architecture of two sections of dc source buses Hot Spare each other |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394898.6U CN206293967U (en) | 2016-12-19 | 2016-12-19 | A kind of system architecture of two sections of dc source buses Hot Spare each other |
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| CN206293967U true CN206293967U (en) | 2017-06-30 |
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| CN201621394898.6U Active CN206293967U (en) | 2016-12-19 | 2016-12-19 | A kind of system architecture of two sections of dc source buses Hot Spare each other |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532919A (en) * | 2016-12-19 | 2017-03-22 | 广东电网有限责任公司东莞供电局 | System architecture for mutual hot backup of two segments of DC power buses |
| CN110783941A (en) * | 2019-12-03 | 2020-02-11 | 中国电力工程顾问集团西北电力设计院有限公司 | Apply to wind-powered electricity generation power supply side energy storage system's electric main wiring structure |
-
2016
- 2016-12-19 CN CN201621394898.6U patent/CN206293967U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532919A (en) * | 2016-12-19 | 2017-03-22 | 广东电网有限责任公司东莞供电局 | System architecture for mutual hot backup of two segments of DC power buses |
| CN110783941A (en) * | 2019-12-03 | 2020-02-11 | 中国电力工程顾问集团西北电力设计院有限公司 | Apply to wind-powered electricity generation power supply side energy storage system's electric main wiring structure |
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