CN106532919A - System architecture for mutual hot backup of two segments of DC power buses - Google Patents
System architecture for mutual hot backup of two segments of DC power buses Download PDFInfo
- Publication number
- CN106532919A CN106532919A CN201611178218.1A CN201611178218A CN106532919A CN 106532919 A CN106532919 A CN 106532919A CN 201611178218 A CN201611178218 A CN 201611178218A CN 106532919 A CN106532919 A CN 106532919A
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- Prior art keywords
- source
- bus
- segment
- bidirectional
- exchanger
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000004146 energy storage Methods 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000006837 decompression Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The embodiment of the invention discloses a system architecture for mutual hot backup of two segments of DC power buses, used for solving the problem of a power loss of one segment of DC bus due to an open-circuit fault in a power supply circuit of single group of storage batteries or the group of batteries during an AC input voltage loss. The system architecture comprises a first segment of DC power bus, a second segment of DC power bus and an intelligent bus coupler device, wherein the intelligent bus coupler device comprises a monitoring unit and a bidirectional DC converter; and the bidirectional DC converter is used for being immediately started and providing the first segment of DC power bus or the second segment of DC power bus of a fault segment with electricity when power supply of the first segment of DC power bus or the second segment of DC power bus is abnormal. The bidirectional DC converter is bridged between the first segment of DC power bus and the second segment of DC power bus; and the monitoring unit is connected with the bidirectional DC converter.
Description
Technical field
The present invention relates to the DC power system field such as power plant, transformer station, more particularly to a kind of two sections of DC source mothers
The system architecture of line 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 adopt unidirectional 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 realizing 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 failure, 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 becomes those skilled in the art institute
The important topic of research.
The content of the invention
A kind of system architecture of two sections of DC source buses Hot Spare each other is embodiments provided, for solving
During exchange input decompression, this section of dc bus is caused because there is open fault inside the current supply circuit or the Battery pack of single group accumulator
The problem of dead electricity.
A kind of system architecture of two sections of DC source buses Hot Spare each other is embodiments provided, including：First
Section 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 supplying 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 with the bidirectional, dc exchanger by DC port
Connect；
The second segment DC source bus is attached with the bidirectional, dc exchanger by DC port.
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 embodiment of the present invention has advantages below：
A kind of system architecture of two sections of DC source buses Hot Spare each other is embodiments provided, including：First
Section 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
When DC source bussed supply is abnormal, start immediately and to the first paragraph DC source bus or second segment direct current of faulty section
Power source bus is powered.The bidirectional, dc exchanger is connected across the first paragraph DC source bus with the second segment unidirectional current
Between the bus of source；The monitoring unit is connected with the bidirectional, dc exchanger.This two sections of DC source buses Hot Spare each other
System architecture, between the bus of two ends bridging have intelligent bus bar connector, solve exchange input decompression when, because of single group electric power storage
There is the problem that open fault causes this section of dc bus dead electricity inside the current supply circuit in pond or the Battery pack, improve power transformation and stand erectly
The operational reliability of stream power-supply system.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is of a kind of two sections of DC source buses provided in an embodiment of the present invention system architecture of Hot Spare each other
The concrete structure diagram of embodiment；
Fig. 2 is of a kind of two sections of DC source buses provided in an embodiment of the present invention system architecture of Hot Spare each other
The structure chart of embodiment；
Illustrate：Monitoring unit 1；First energy-storage units 2；Second energy-storage units 3；First paragraph DC source bus 4；The
Two-stage nitration DC source bus 5；Intelligent bus bar connector 6.
Specific embodiment
A kind of system architecture of two sections of DC source buses Hot Spare each other is embodiments provided, for solving
During exchange input decompression, this section of dc bus is caused because there is open fault inside the current supply circuit or the Battery pack of single group accumulator
The problem of dead electricity.
To enable goal of the invention of the invention, feature, advantage more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Refer to Fig. 1 and Fig. 2, a kind of system of two sections of DC source buses provided in an embodiment of the present invention Hot Spare each other
Framework 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 5 abnormal electrical power supply of first paragraph DC source bus 4 or second segment DC source bus
When, start immediately and power 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 quickly should be able to start, it is ensured that direct current
Bus falls less than straight-flow system permissible value；The two-way DC converter that energy Flow direction flexibly can control, can also adopt
The function of two-way DC converter is realized with two Unidirectional direct-current changer inverse parallel connections；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 the operation of another section 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 with bidirectional, dc exchanger by DC port；
Second segment DC source bus 5 is attached with bidirectional, dc exchanger by DC port；
In the present embodiment, bidirectional, dc exchanger connect two sections of dc bus two DC ports electrically mutually every
From its addition does not affect the state of insulation of two sections 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 the system architecture to a kind of two sections of DC source buses provided in an embodiment of the present invention Hot Spare each other
Concrete structure is described in detail, and this framework will be conducted further description in the method for an application below, is referred to
Fig. 1 and Fig. 2, a kind of two sections of DC source buses provided in an embodiment of the present invention one of the system architecture of Hot Spare application each other
Example 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 arrange the output voltage of two-way DC converter and start voltage.When two sections it is straight
When stream bussed supply is normal, holding state of the two-way DC converter in 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 after isolating voltage stabilizing, the direct current of output to abnormal electrical power supply is female
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 only to illustrate technical scheme, rather than a limitation；Although with reference to front
State embodiment to be described in detail the present invention, it will be understood by those within the art that：Which still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
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, it is different for working as the first paragraph DC source bus or second segment DC source bussed supply
Chang Shi, starts immediately and to the first paragraph DC source bus or second segment DC source bussed supply of faulty section；
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 with the bidirectional, dc exchanger by DC port；
The second segment DC source bus is attached with the bidirectional, dc exchanger by DC port.
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 |
|---|---|---|---|
| CN201611178218.1A CN106532919A (en) | 2016-12-19 | 2016-12-19 | System architecture for mutual hot backup of two segments of DC power buses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178218.1A CN106532919A (en) | 2016-12-19 | 2016-12-19 | System architecture for mutual hot backup of two segments of DC power buses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106532919A true CN106532919A (en) | 2017-03-22 |
Family
ID=58341165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611178218.1A Pending CN106532919A (en) | 2016-12-19 | 2016-12-19 | System architecture for mutual hot backup of two segments of DC power buses |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039965A (en) * | 2017-05-16 | 2017-08-11 | 南京南瑞继保电气有限公司 | A kind of community's supplying power allocation system |
| CN107196407A (en) * | 2017-07-17 | 2017-09-22 | 许继电源有限公司 | A kind of two sections of mutually redundant electric power systems of dc bus and its control method |
| CN107257160A (en) * | 2017-06-30 | 2017-10-17 | 深圳奥特迅电力设备股份有限公司 | A kind of DC operation power supply system and its control method |
| CN107346884A (en) * | 2017-07-24 | 2017-11-14 | 许继电源有限公司 | A kind of two sections of dc bus isolation transition electric power system |
| CN108199337A (en) * | 2017-12-13 | 2018-06-22 | 华中科技大学 | Transformer station secondary system and its performance improvement method are pressed in one kind |
| CN108233513A (en) * | 2018-02-07 | 2018-06-29 | 深圳奥特迅电力设备股份有限公司 | Power-supply system and dc bus guard method with dc bus defencive function |
| CN109450080A (en) * | 2018-12-29 | 2019-03-08 | 烟台东方威思顿电气有限公司 | A kind of automatic redundancy zero propagation switching system of two dc power supply and method |
| CN111555433A (en) * | 2020-04-16 | 2020-08-18 | 广州市仟顺电子设备有限公司 | Bus coupler device of direct current system and control method thereof |
| CN113708609A (en) * | 2021-07-16 | 2021-11-26 | 厦门华睿晟智能科技有限责任公司 | AC/DC integrated power supply and control method |
| CN114123497A (en) * | 2021-11-13 | 2022-03-01 | 国网新疆电力有限公司阿勒泰供电公司 | Intelligent bus-tie monitoring device of low-voltage direct-current power supply system for station and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107039965A (en) * | 2017-05-16 | 2017-08-11 | 南京南瑞继保电气有限公司 | A kind of community's supplying power allocation system |
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| CN107257160A (en) * | 2017-06-30 | 2017-10-17 | 深圳奥特迅电力设备股份有限公司 | A kind of DC operation power supply system and its control method |
| CN107257160B (en) * | 2017-06-30 | 2023-07-28 | 深圳奥特迅电力设备股份有限公司 | DC operation power supply system and control method thereof |
| CN107196407A (en) * | 2017-07-17 | 2017-09-22 | 许继电源有限公司 | A kind of two sections of mutually redundant electric power systems of dc bus and its control method |
| CN107346884B (en) * | 2017-07-24 | 2020-07-17 | 许继电源有限公司 | Two-section direct current bus isolation conversion power supply system |
| CN107346884A (en) * | 2017-07-24 | 2017-11-14 | 许继电源有限公司 | A kind of two sections of dc bus isolation transition electric power system |
| CN108199337A (en) * | 2017-12-13 | 2018-06-22 | 华中科技大学 | Transformer station secondary system and its performance improvement method are pressed in one kind |
| CN108199337B (en) * | 2017-12-13 | 2019-04-05 | 华中科技大学 | Transformer station secondary system and its performance improvement method are pressed in one kind |
| CN108233513A (en) * | 2018-02-07 | 2018-06-29 | 深圳奥特迅电力设备股份有限公司 | Power-supply system and dc bus guard method with dc bus defencive function |
| CN109450080A (en) * | 2018-12-29 | 2019-03-08 | 烟台东方威思顿电气有限公司 | A kind of automatic redundancy zero propagation switching system of two dc power supply and method |
| CN111555433A (en) * | 2020-04-16 | 2020-08-18 | 广州市仟顺电子设备有限公司 | Bus coupler device of direct current system and control method thereof |
| CN111555433B (en) * | 2020-04-16 | 2022-02-11 | 广州市仟顺电子设备有限公司 | Bus coupler device of direct current system and control method thereof |
| CN113708609A (en) * | 2021-07-16 | 2021-11-26 | 厦门华睿晟智能科技有限责任公司 | AC/DC integrated power supply and control method |
| CN113708609B (en) * | 2021-07-16 | 2023-08-22 | 厦门华睿晟智能科技有限责任公司 | AC/DC integrated power supply and control method |
| CN114123497A (en) * | 2021-11-13 | 2022-03-01 | 国网新疆电力有限公司阿勒泰供电公司 | Intelligent bus-tie monitoring device of low-voltage direct-current power supply system for station and control method |
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Application publication date: 20170322 |