CN202978406U - AC-DC integrated power supply system - Google Patents
AC-DC integrated power supply system Download PDFInfo
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- CN202978406U CN202978406U CN 201220395450 CN201220395450U CN202978406U CN 202978406 U CN202978406 U CN 202978406U CN 201220395450 CN201220395450 CN 201220395450 CN 201220395450 U CN201220395450 U CN 201220395450U CN 202978406 U CN202978406 U CN 202978406U
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- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An AC-DC integrated power supply system is used for the integrated supply of a transformer station power supply. Two AC inlet wires are respectively connected with a breaker, the back of the breaker is connected with a transfer switch, the transfer switch is provided with three branches, a branch I denotes the conduction of a line I, a branch II denotes the conduction of a line II, and the middle position denotes no line conduction. The transfer switch is connected with an AC bus and then is connected with one end of an inverter, the other end of the inverter is connected with two DC buses, power is output through rectification inversion, and the output AC power is supplied for AC equipment. A storage battery group comprises a plurality of batteries which are in series connection, and the storage battery group is directly connected to the DC buses. Two DC breakers are connected between each DC bus group and wire inlet equipment to provide two standby DC sources. When AC power loss happens, storage batteries or external DC sources are converted to AC sources to supply power for equipment.
Description
Technical field
The utility model relates to a kind of AC/DC integrated power-supply system, relates generally to the intelligent AC/DC integrated power-supply system that transformer station uses.
Background technology
Along with social economy constantly advances, the power consumption demand is more and more higher, and is also more and more higher to the requirement of electric power system, and unattended operation transformer station quantity is also more and more.The tradition Substation Station is divided into AC power supply system, DC power system, UPS, the power supply system for communications etc. with power supply, each subsystem adopts and disperses design, independent group screen, equipment is produced, installs, is debugged by different supplier, and electric power system is managed by different professionals.There is following problem in this pattern:
1, each subsystem communication stipulations that provided by different suppliers are generally incompatible, are difficult to realize network management, and automaticity is not high;
2, stand and can not consider with power resources, make once that investment significantly increases, economy is relatively poor;
3, each supplier is because the difference of interests makes installation, service coordination difficulty;
4, stand and manage with power distribution different majors personnel, operation maintenance is inconvenient.
The power-supply system of the integrated designs such as the therefore full station interchange of development, direct current, UPS, communication, unified collocation, integrated monitoring has become inevitable trend.
Summary of the invention
The purpose of this utility model is to provide a kind of centrally connected power supply, unified management, on-line monitoring, compact conformation, the economic electric source modes of transformer station's AC/DC integrated reliably.
To achieve these goals, the technical solution of the utility model is: system acquisition 2 tunnel AC power, every road AC power connect in order to monitor the current transformer of the quality of power supply and collection conveying and metering information.Every road exchanges minute 2 branches, configures circuit breaker in each branch, and then tape splicing has the change over switch of three branches, and the position 1 expression l of branch connects, and position 2 represents that branch 2 connects, and interposition represents that 2 branches are all obstructed.Every group of change over switch is connected with AC line, inverter, batteries respectively, then installs two groups of dc circuit breakers additional and is connected with dc bus.It is characterized in that: cancel communication storage battery group and charging device, use the DC/DC converter directly to be hung on bus and replace, cancel the UPS storage battery, use inverter directly to be hung on dc bus and replace.
The utility model by unified digital information platform to each subsystem decentralized control, centralized management, each subsystem data are communicated by letter with host computer by Ethernet, IEC61850 stipulations, Real-Time Monitoring storage battery information has improved operating efficiency, has alleviated staff's workload.
The utility model is unified to control and management by central controller, and unified battery pack, unified lightning Protection Design, unified secondary power distribution are administered, unified monitoring, and system data is carried out intellectual analysis, realize repair based on condition of component.
The utility model compared with prior art, can improve transformer station's power-supply device operation and maintenance level, alleviate the operating personnel labour intensity, enrich the monitoring information amount, improve operational reliability, produce great economic benefit and social benefit.
Description of drawings
Fig. 1 is system of the present utility model simplified schematic diagram.
Embodiment
As shown in Figure 1, AC/DC integrated power-supply system of the present utility model gathers the two-way AC power, every road AC line 1 is connected with circuit breaker 2, Switching 3 is switched through in circuit breaker 2 back, change over switch 3 has three branches, branch's I represents that the circuit I connects, and branch's II represents that the circuit II connects, and the centre position represents that two-way all do not work.Change over switch 3 connects ac bus 4, is connected with inverter 5 one ends, and inverter 5 other ends connect two dc buss 6, and dc bus 6 is connected with inlet wire equipment through two groups of dc circuit breakers 8.Batteries 7 is directly connected on dc bus 6, and when exchanging dead electricity, it is power devices that storage battery or outside direct current are converted to alternating current through inverter 5.
The utility model workflow: high voltage source becomes the 380V low-voltage alternating current power supply by the station with transformer, and the AC/DC integrated power-supply system gathers the two-way AC power, and two-way alternating current structure is identical with operation principle, and effect is standby each other when line fault.Every road AC line is connected with circuit breaker, in order to switch on or off circuit; Switching is switched through in the circuit breaker back, and change over switch has three branches, represents when meeting branch 1 that circuit 1 connects, and represents when connecing branch's II that the circuit II connects, and represents when connecing the centre position that two circuits all do not work.Change over switch connects ac bus, and the ac bus independent operating of two circuits is independent of each other.Article one, in order to the alternating current equipment power supply, another is used for the power supply stand-by heat.Inverter one end connects an ac bus, and the other end connects two dc buss, and through commutation inversion output, the AC power of output is to power devices such as computer, monitoring, protection, printers.Batteries has many Battery packs piece to be composed in series, and every group storage battery is placed separately, is directly connected on dc bus.Be connected two groups of dc circuit breakers between every group of dc bus and inlet wire equipment, standby to realize two groups of DC power supply.Simultaneously, when exchanging dead electricity, it is power devices that storage battery or outside direct current are converted to alternating current through inverter, and the protective device tripping operation is carried out analyzing and processing by the communication line uploading data to central processing unit.The utility model workflow: high voltage source becomes the 380V low-voltage alternating current power supply by the station with transformer, and the AC/DC integrated power-supply system gathers two-way AC power 1, and two-way alternating current structure is identical with operation principle, and effect is standby each other when line fault.Every road AC line 1 is connected with circuit breaker 2, in order to switch on or off circuit; Switching 3 is switched through in circuit breaker 2 back, and change over switch 3 has three branches, represents when connecing branch's I that circuit 1 connects, and represents when connecing branch's II that the circuit II connects, and represents when connecing the centre position that two circuits all do not work.Change over switch 3 connects ac bus 4 independent operatings of 4, two circuits of ac bus, is independent of each other.Article one, in order to the alternating current equipment power supply, another is used for the power supply stand-by heat.Inverter 5 one ends connect an ac bus 4, and the other end connects two dc buss 6, and through commutation inversion output, the AC power of output is to power devices such as computer, monitoring, protection, printers.Batteries 7 has many Battery packs piece to be composed in series, and every group storage battery is placed separately, is directly connected on dc bus 6.Be connected two groups of dc circuit breakers 8 between every group of dc bus 6 and inlet wire equipment, standby to realize two groups of DC power supply.Simultaneously, when exchanging dead electricity, it is power devices that storage battery or outside direct current are converted to alternating current through inverter 5, and the protective device tripping operation is carried out analyzing and processing by the communication line uploading data to central processing unit.
Claims (1)
1. AC/DC integrated power-supply system, it is characterized in that: high voltage source becomes the 380V low-voltage alternating current power supply by the station with transformer, the AC/DC integrated power-supply system gathers the two-way AC power, and two-way alternating current structure is identical with operation principle, and effect is standby each other when line fault; Every road AC line is connected with circuit breaker, in order to switch on or off circuit; Switching is switched through in the circuit breaker back, and change over switch has three branches, represents when meeting branch that circuit connects, and represents when connecing branch's II that the circuit II connects, and represents when connecing the centre position that two circuits all do not work; Change over switch connects ac bus, and the ac bus independent operating of two circuits is independent of each other, and powers in order to alternating current equipment for one, and another is used for the power supply stand-by heat; Inverter one end connects an ac bus, and the other end connects two dc buss, and through commutation inversion output, the AC power of output is to power devices such as computer, monitoring, protection, printers; Batteries has many Battery packs piece to be composed in series, and every group storage battery is placed separately, is directly connected on dc bus; Be connected two groups of dc circuit breakers between every group of dc bus and inlet wire equipment, standby to realize two groups of DC power supply; When exchanging dead electricity, it is power devices that storage battery or outside direct current are converted to alternating current through inverter, and the protective device tripping operation is carried out analyzing and processing by the communication line uploading data to central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395450 CN202978406U (en) | 2012-08-10 | 2012-08-10 | AC-DC integrated power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395450 CN202978406U (en) | 2012-08-10 | 2012-08-10 | AC-DC integrated power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978406U true CN202978406U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395450 Expired - Fee Related CN202978406U (en) | 2012-08-10 | 2012-08-10 | AC-DC integrated power supply system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202978406U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333232A (en) * | 2014-09-20 | 2015-02-04 | 武汉瑞源电力设备有限公司 | Mining explosion suppression type intelligent integrated power supply apparatus |
| CN107482613A (en) * | 2017-08-16 | 2017-12-15 | 国网浙江省电力公司电力科学研究院 | A kind of transformer station direct current system based on DC/DC isolation modules |
| CN108063490A (en) * | 2017-12-01 | 2018-05-22 | 国网新疆电力公司吐鲁番供电公司 | AC/DC integrated power supply solar electric power supply system |
| CN108173269A (en) * | 2018-01-02 | 2018-06-15 | 全球能源互联网研究院有限公司 | A kind of flexibility multimode switch |
-
2012
- 2012-08-10 CN CN 201220395450 patent/CN202978406U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333232A (en) * | 2014-09-20 | 2015-02-04 | 武汉瑞源电力设备有限公司 | Mining explosion suppression type intelligent integrated power supply apparatus |
| CN104333232B (en) * | 2014-09-20 | 2017-01-18 | 武汉瑞源电力设备有限公司 | Mining explosion suppression type intelligent integrated power supply apparatus |
| CN107482613A (en) * | 2017-08-16 | 2017-12-15 | 国网浙江省电力公司电力科学研究院 | A kind of transformer station direct current system based on DC/DC isolation modules |
| CN108063490A (en) * | 2017-12-01 | 2018-05-22 | 国网新疆电力公司吐鲁番供电公司 | AC/DC integrated power supply solar electric power supply system |
| CN108173269A (en) * | 2018-01-02 | 2018-06-15 | 全球能源互联网研究院有限公司 | A kind of flexibility multimode switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG UNIVERSITY OF TECHNOLOGY Free format text: FORMER OWNER: YU LANLAN Effective date: 20130517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130517 Address after: 255049 No. 12 Zhang Zhou road, Zhangdian District, Shandong, Zibo Patentee after: Shandong University of Technology Address before: 255049 No. 2, building 7, building 12, Boda garden, Shandong University of Technology, Zibo, Zhangdian, Shandong, 402 Patentee before: Yu Lanlan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |