CN205160207U - Double bus scheme intelligent substation's busbar voltage connection structure - Google Patents
Double bus scheme intelligent substation's busbar voltage connection structure Download PDFInfo
- Publication number
- CN205160207U CN205160207U CN201520863376.5U CN201520863376U CN205160207U CN 205160207 U CN205160207 U CN 205160207U CN 201520863376 U CN201520863376 U CN 201520863376U CN 205160207 U CN205160207 U CN 205160207U
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- China
- Prior art keywords
- main transformer
- merge cells
- voltage
- functional module
- bus
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- Expired - Fee Related
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- 230000004224 protection Effects 0.000 claims abstract description 34
- 238000005204 segregation Methods 0.000 claims description 31
- 230000006855 networking Effects 0.000 claims description 6
- 241000272814 Anser sp. Species 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 44
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a double bus scheme intelligent substation's busbar voltage connection structure is applicable to the double bus scheme intelligent substation who does not dispose the change of three phase line pressure and compares with prior art, increases a traditional voltage and parallels the device, reduces by a busbar voltage merging cells. The generating line press to become secondary voltage utilize the cable to divide two the tunnel be connected to generating line merging cells respectively and traditional busbar voltage parallels the device, the stream oriented device provides secondary alternating voltage for respectively different protections. Double -bus configuration separate unit generating line merging cells device, the busbar voltage of its output offer bus differential protection, fault oscillograph, stand -by power supply and the device that does not need voltage to switch such as haul oneself willingly into and use, busbar voltage ties for the device and lays the merging cells of secondary cable to each circuit on, just accomplishes at circuit merging cells, vice female voltage switches over, offers line protection and measurement and control device at last and uses.
Description
Technical field
The utility model relates to the intelligent substation field adopting merge cells device, particularly relates to the busbar voltage syndeton of a kind of double bus scheme intelligent substation in 220 kilovolts of intelligent substations that configuration uniline pressure becomes, three-phase bus pressure becomes.
Background technology
According to " Q/GDW441-2010 " intelligent substation Protection Technology specification " ", there is potential safety hazard in current Intelligent substation merging unit typical design solution, may cause the hidden danger that defencive function is out of service during merge cells fault.
In 220 kilovolts of double bus scheme intelligent substations, when becoming according to the change of three-phase bus pressure, uniline pressure, once bus merge cells fault, corresponding route protection, main transformer protection, bus differential protection device will all lose the functions such as distancing element, direction component, voltage blocking, and 220 kilovolts of corresponding carrier current protections are out of service; What situation was the most severe is in 110 kv grids; 110 kilovolt protections of single cover configuration only remain PT broken string overcurrent protection and the zero-sequencedirectional protection not with direction; 110 kilovolts of bus differential protections lose busbar voltage blocking function; bring great challenge to electric power netting safe running, need if desired to adjust power system operating mode.
220 kilovolts of intelligent substation busbar voltage typical design solution are for 110 kilovolts of buses, busbar voltage merge cells 1 is just gathering simultaneously, secondary bus secondary voltage, busbar voltage merge cells 2 is just gathering simultaneously, secondary bus secondary voltage, the bus connection switch position received, chief and vice female plug-in strip auxiliary contact signal of telecommunication are converted to light signal by mother intelligent terminal, bus merge cells is transferred in GOOSE message mode by optical cable, realize chief and vice bus secondary voltage function arranged side by side, rely on the switching handle be arranged in cabinet, artificially realize the arranged side by side of secondary voltage or apportion.
Chief and vice busbar voltage is provided to each 110 kilovolt merge cellses, bus protection, main transformer 110 kilovolts of first set backup protections by bus merge cells 1; Chief and vice busbar voltage is provided to the backup protection of main transformer 110 kilovolt second cover by bus merge cells 2.Circuit main transformer interval provides chief and vice female plug-in strip auxiliary contact, converts electrical signals to light signal by intelligent end device, is transferred to circuit main transformer interval merge cells, for realizing the chief and vice female voltage switching of circuit main transformer interval merge cells.
Once bus merge cells 1 breaks down; 110 kilovolt protections, bus protection, main transformer 110 kilovolts of first set backup protections all will lose busbar voltage; exit the corresponding defencive functions such as distancing element, direction component, voltage blocking, normally run to system and bring great risk.
technical scheme
In order to solve the problems of the technologies described above, the utility model content is achieved through the following technical solutions:
A kind of busbar voltage syndeton of double bus scheme intelligent substation, be applicable to the double bus scheme intelligent substation not configuring the change of three-phase line pressure, comprise positive female change and pair mother pressure of pressing to become, the change of described positive mother's pressure and pair mother press to become and are all connected on same bus merge cells, positive female pressure change simultaneously and the change of pair mother pressure are also connected on same conventional busbars voltage parallel device, and described bus merge cells and conventional busbars voltage parallel device are all connected to line segregation functional module group; Conventional busbars voltage parallel device also connects the first main transformer interval functional module group and the second main transformer interval functional module group respectively, described line segregation functional module group comprises line segregation merge cells, described line segregation merge cells is connected to line segregation intelligent terminal, and line segregation merge cells is also connected in route protection module, networking module and bus protection module; First main transformer interval functional module group and the second main transformer interval functional module group include the main transformer interval intelligent terminal be connected on the merge cells of main transformer interval, and main transformer interval merge cells is also connected to networking module and main transformer protection module.
Preferably, also comprise 110kV mother intelligent terminal, described 110kV mother intelligent terminal is connected respectively on the main transformer interval merge cells of line segregation merge cells and the first main transformer interval functional module group and the second main transformer interval functional module group.
Preferably, described connection is by GOOSE Fiber connection.
Preferably, bus merge cells is connected in the bus protection module of line segregation functional module group, and conventional busbars voltage parallel device is connected to the line segregation merge cells of line segregation functional module group.
The utility model increases a conventional voltage parallel device, reduces by a busbar voltage merge cells.Bus voltage transformer secondary voltage utilizes cable to divide two-way to be connected to bus merge cells and conventional busbars voltage parallel device respectively, and stream oriented device provides secondary alternating voltage to respectively different protections.Double-bus configuration separate unit bus merge cells device, its busbar voltage exported is supplied to bus differential protection, fault oscillograph, automatic closing etc. does not need the device of voltage switching to use; Busbar voltage parallel device lays secondary cable to the merge cells on each circuit, just completes, secondary female voltage switching at circuit merge cells, is finally supplied to route protection and measure and control device uses.
Accompanying drawing explanation
Here is that the accompanying drawing in the utility model illustrates:
Fig. 1 is the schematic diagram of the busbar voltage syndeton of a kind of double bus scheme intelligent substation of the utility model.
Embodiment
As shown in Figure 1, a kind of busbar voltage syndeton of double bus scheme intelligent substation, be applicable to the double bus scheme intelligent substation not configuring the change of three-phase line pressure, comprise positive female change and pair mother pressure of pressing to become, the change of described positive mother's pressure and pair mother press to become and are all connected on same bus merge cells 1, positive female pressure change simultaneously and the change of pair mother pressure are also connected on same conventional busbars voltage parallel device 2, and described bus merge cells 1 and conventional busbars voltage parallel device 2 are all connected to line segregation functional module group; Conventional busbars voltage parallel device 2 also connects the first main transformer interval functional module group and the second main transformer interval functional module group respectively, described line segregation functional module group comprises line segregation merge cells 31, described line segregation merge cells 31 is connected to line segregation intelligent terminal 32, and line segregation merge cells 31 is also connected in route protection module 33, networking module and bus protection module 34; First main transformer interval functional module group and the second main transformer interval functional module group include the main transformer interval intelligent terminal 42 be connected on main transformer interval merge cells 41, and main transformer interval merge cells 41 is also connected to networking module and main transformer protection module 43.Also comprise 110kV mother intelligent terminal 5, described 110kV mother intelligent terminal 5 is connected respectively on the main transformer interval merge cells 41 of line segregation merge cells 31 and the first main transformer interval functional module group and the second main transformer interval functional module group.Described connection is by GOOSE Fiber connection.Bus merge cells 1 is connected in the bus protection module 34 of line segregation functional module group, and conventional busbars voltage parallel device 2 is connected to the line segregation merge cells 31 of line segregation functional module group.
Double-bus configuration separate unit bus merge cells 1, its busbar voltage exported only is supplied to bus differential protection, fault oscillograph, automatic closing etc. does not need the device of voltage switching to use.
Busbar voltage parallel device lays secondary cable to each circuit merge cells; chief and vice for this interval female plug-in strip auxiliary contact signal of telecommunication is converted to light signal by intelligent end device; be delivered to circuit merge cells device, complete chief and vice female voltage switching, be finally supplied to line protective devices and use.
Compared with prior art; double bus scheme intelligent substation increases conventional voltage parallel device; for line protective devices, measure and control device and kilowatt-hour meter etc. provide busbar voltage; solve the bottleneck problem of bus merge cells; stop the multi-compartment due to bus merge cells fault and lost the phenomenon of defencive function simultaneously, relay protected operation reliability is greatly improved.
Claims (4)
1. the busbar voltage syndeton of a double bus scheme intelligent substation, be applicable to the double bus scheme intelligent substation not configuring the change of three-phase line pressure, comprise positive female change and pair mother pressure of pressing to become, it is characterized in that: the change of described positive mother's pressure and pair mother press to become and be all connected on same bus merge cells (1), positive female pressure change simultaneously and the change of pair mother pressure are also connected on same conventional busbars voltage parallel device (2), and described bus merge cells (1) and conventional busbars voltage parallel device (2) are all connected to line segregation functional module group; Conventional busbars voltage parallel device (2) also connects the first main transformer interval functional module group and the second main transformer interval functional module group respectively, described line segregation functional module group comprises line segregation merge cells (31), described line segregation merge cells (31) is connected to line segregation intelligent terminal (32), and line segregation merge cells (31) is also connected in route protection module (33), networking module and bus protection module (34); First main transformer interval functional module group and the second main transformer interval functional module group include main transformer interval intelligent terminal (42) be connected on main transformer interval merge cells (41), and main transformer interval merge cells (41) is also connected to networking module and main transformer protection module (43).
2. the busbar voltage syndeton of a kind of double bus scheme intelligent substation as claimed in claim 1, it is characterized in that: also comprise 110kV mother intelligent terminal (5), described 110kV mother intelligent terminal (5) is connected respectively on main transformer interval merge cells (41) of line segregation merge cells (31) and the first main transformer interval functional module group and the second main transformer interval functional module group.
3. the busbar voltage syndeton of a kind of double bus scheme intelligent substation as claimed in claim 2, is characterized in that: described 110kV mother intelligent terminal (5) is connected respectively on main transformer interval merge cells (41) of line segregation merge cells (31) and the first main transformer interval functional module group and the second main transformer interval functional module group by GOOSE optical fiber.
4. the busbar voltage syndeton of a kind of double bus scheme intelligent substation as claimed in claim 1; it is characterized in that: bus merge cells (1) is connected in the bus protection module (34) of line segregation functional module group, conventional busbars voltage parallel device (2) is connected to the line segregation merge cells (31) of line segregation functional module group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863376.5U CN205160207U (en) | 2015-11-02 | 2015-11-02 | Double bus scheme intelligent substation's busbar voltage connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863376.5U CN205160207U (en) | 2015-11-02 | 2015-11-02 | Double bus scheme intelligent substation's busbar voltage connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160207U true CN205160207U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520863376.5U Expired - Fee Related CN205160207U (en) | 2015-11-02 | 2015-11-02 | Double bus scheme intelligent substation's busbar voltage connection structure |
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| CN (1) | CN205160207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532656A (en) * | 2016-08-22 | 2017-03-22 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Double-bus line protection method and device of integrating voltage switching |
| CN107181241A (en) * | 2017-03-20 | 2017-09-19 | 国网浙江省电力公司金华供电公司 | Interval merges device |
-
2015
- 2015-11-02 CN CN201520863376.5U patent/CN205160207U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532656A (en) * | 2016-08-22 | 2017-03-22 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Double-bus line protection method and device of integrating voltage switching |
| CN106532656B (en) * | 2016-08-22 | 2019-06-25 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of the double-bus line protection method and device of integrated voltage switching |
| CN107181241A (en) * | 2017-03-20 | 2017-09-19 | 国网浙江省电力公司金华供电公司 | Interval merges device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20201102 |