CN107171323A - A kind of track traffic loop wire middle-voltage network electric power system and its operation method - Google Patents
A kind of track traffic loop wire middle-voltage network electric power system and its operation method Download PDFInfo
- Publication number
- CN107171323A CN107171323A CN201710502574.2A CN201710502574A CN107171323A CN 107171323 A CN107171323 A CN 107171323A CN 201710502574 A CN201710502574 A CN 201710502574A CN 107171323 A CN107171323 A CN 107171323A
- Authority
- CN
- China
- Prior art keywords
- power supply
- bus
- electric
- main transformer
- loop wire
- Prior art date
- 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.)
- Granted
Links
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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
-
- 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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to track traffic middle-voltage network electric power system, there is provided a kind of track traffic loop wire middle-voltage network electric power system, the multiple power supply zones being distributed including multiple main transformer stations and along loop wire, each power supply zone includes the multiple electric substations being sequentially distributed along the loop wire, the electric substation that each power supply zone is accessed in two telegram in reply source to subregions at a main transformer station, multiple electric substations are sequentially connected in series by the first class interval cable and the second class interval cable in each power supply zone, pass through looped network cable connection between the Liang Ge electric substations positioned at end of two adjacent power supply zones, looped network cable is provided with looped network block switch.The track traffic loop wire middle-voltage network electric power system that the present invention is provided, using loop wire feature, wiring simpler, secondary circuit is less on the premise of security reliability is met, and engineering exploitativeness is strong, operation management is more convenient.
Description
Technical field
The present invention relates to track traffic middle-voltage network electric power system, more particularly to a kind of middle-voltage network of track traffic loop wire
Electric power system.
Background technology
The middle-voltage network electric power system for the Circle Line of Urban Rail Transit circuit that the country is built in recent years has continued line style circuit
Connection plan, employ bicyclic web frame, open loop operation mode.Completely several power supply zones are set, each subregion is from outer
Power supply or main transformer station introduce two telegram in reply sources to first electric substation, two sections of buses of subregion, and electric substation is using double back electricity in subregion
Cable connection；Electric substation uses single-trunk segmental wiring, if bar coupler, and set standby at bar coupler
Power switchover function；Ability is supported to provide failure, link cable and looped network are set in the subregion afterbody between power supply point
Block switch.During normal operation, looped network block switch is opened, when a power loss, bar coupler is closed, by another
Power supply is supported in telegram in reply source；At one during external power (two telegram in reply sources) dead electricity, looped network block switch is closed, is entered by another external power
Row supports power supply.The connection plan, which is directed to the circuit of " line style " through city in city, has stronger advantage, that is, is meeting circuit
While power supply zone " each electric substation should there are two independent current sources " at two ends, roundabout power supply turn avoid.But do not have
Have and carry out targeted design with reference to loop wire feature, electric substation's wiring and the method for operation are more complicated, and engineering construction, operation management are not
And economic index is poor just,.
It is therefore desirable to design a kind of track traffic loop wire middle-voltage network electric power system, to overcome above mentioned problem.
The content of the invention
It is an object of the invention to the defect for overcoming prior art, there is provided a kind of track traffic loop wire medium-pressure electricity supply system
System, carries out targeted design the characteristics of for loop wire, to cause middle-voltage network electric power system meeting the premise of security reliability
Lower wiring simpler, secondary circuit is less, and easy in economy, engineering exploitativeness, operation management convenience, operation method
Existing scheme is significantly better than that in terms of property.
What the present invention was realized in：
The present invention provides a kind of track traffic loop wire middle-voltage network electric power system, including multiple main transformer stations and along loop wire
Multiple power supply zones of distribution, each power supply zone includes the multiple electric substations being sequentially distributed along the loop wire, Mei Yisuo
The electric substation that power supply zone is accessed in two telegram in reply source to subregions at a main transformer station is stated, each electric substation includes two
Section bus, two sections of buses are respectively the first bus and the second bus, and each section of bus is respectively provided with one and returns back out line back into line and one,
It is sequentially connected in series in each power supply zone between the first bus of multiple electric substations by the first class interval cable, it is each described
It is sequentially connected in series in power supply zone between the second bus of multiple electric substations by the second class interval cable, each power supply zone
By two winding net cable connections between end electric substation carried out by power transformation positioned at end, adjacent Liang Ge ends electric substation, respectively
Looped network block switch is equipped with the looped network cable.
Further, it is respectively provided with earthed switch on every section of bus.
Further, each power supply zone accesses two telegrams in reply by two main transformers at a main transformer station
Connected between source, two main transformers by mother block switch.
Further, it is provided with a safe automatic bus at each looped network block switch.
Further, the safe automatic bus includes prepared auto restart logic circuit and stand-by power supply, and the prepared auto restart is patrolled
Collecting circuit includes two inputs and door, three inputs and door, two input OR gates, the first NOT gate, the second NOT gate and relay, the end
Any bus of electric substation of portion is end bus, and the looped network block switch being connected with end bus is end looped network block switch,
The outlet of the inlet wire and end bus of end bus is all connected with the input of two input OR gates；The inlet wire of end bus and end are female
Line is all connected with the input of two inputs and door；Two inputs are connected the first NOT gate with the output end of door, and bus connection second in end is non-
Door；Output end, the output end of the first NOT gate, the output end of the second NOT gate of two input OR gates are all connected with three inputs and the input of door
End；Three inputs are connected relay with the output end of door, and the relay connects end looped network block switch, the end looped network point
Duan Kaiguan connection stand-by power supplies.
The present invention also provides a kind of operation method based on above-mentioned track traffic loop wire middle-voltage network electric power system, normal fortune
During row, all looped network block switches are opened, every main transformer station provides power supply for all power supply zones in its supply district；Appoint
During a winding net cable dead electricity in one power supply zone, main transformer station of another winding net cable still by being connected with the power supply zone
A telegram in reply source is provided, the looped network block switch of closure and the looped network cable connection of dead electricity is dead electricity by another main transformer station
Looped network cable provides a telegram in reply source.
Further, in any power supply zone, when a main transformer is out of service, two are closed in the power supply zone
Mother block switch between main transformer, is all electric substations in the power supply zone supply district by another main transformer
Power supply is provided.
Further, when main transformer station's off-the-line, close in main transformer station's supply district on all power supply zones
Looped network block switch, by another main transformer station be main transformer station's supply district in all power supply zones and another master
All power supply zones in electric substation's supply district provide power supply.
Further, each electric substation by the first bus of the electric substation inlet wire and the bus of electric substation second
Inlet wire provide power supply.
Further, line side decompression or the outgoing line side decompression of end bus, and end bus are entered when end bus
Enter line side and end bus bar side without simultaneously without pressure, and end bus is not when breaking down, prepared auto restart logic circuit
Start, relay delayed startup, end looped network block switch is closed therewith, and in-put of spare power supply is used.
The invention has the advantages that：
1st, the wiring of middle-voltage network and electric substation is simpler on the premise of security reliability is met, latching logic simplifies,
Secondary circuit is less, and the method for operation of whole electric power system is also simpler.
2nd, the optimizing of connection plan, simplify the equipment of electric substation reduced, therefore construction cost, operation cost and maintenance
Cost is reduced.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be 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, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that a kind of middle-voltage network of the middle-voltage network electric power system of track traffic loop wire provided in an embodiment of the present invention connects
Line chart；
Fig. 2 is a kind of electric substation's wiring diagram of the middle-voltage network electric power system of track traffic loop wire of Fig. 1 offer；
Fig. 3 matches somebody with somebody for a kind of automatic safety device of the middle-voltage network electric power system of track traffic loop wire of Fig. 1 offer
Put and photo series；
Fig. 4 is a kind of prepared auto restart logical circuitry of the middle-voltage network electric power system of track traffic loop wire of Fig. 1 offer.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, 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 protection of the invention.
First embodiment：Such as Fig. 1-Fig. 2, the embodiment of the present invention, which provides a kind of middle-voltage network of track traffic loop wire and powered, is
System, including main transformer station S1 and main transformer station S2, whole track traffic loop wire are divided into four power supply zones：First power supply zone
Q1, the second power supply zone Q2, the 3rd power supply zone Q3 and the 4th power supply zone Q4, four power supply zones include multiple along rail
The electric substation SS that road traffic loop wire is sequentially distributed.First power supply zone Q1 accesses two telegram in reply sources in Q1 at main transformer station S1
First electric substation SS1, the second power supply zone Q2 access two telegram in reply sources to the first electric substation SS2 in Q2 at main transformer station S1,
3rd power supply zone Q3 accesses two telegram in reply sources to the first electric substation SS3, the 4th power supply zone Q4 in Q3 at main transformer station S2
Two telegram in reply sources are accessed at main transformer station S2 to the first electric substation SS4 in Q4.Each electric substation SS includes the first bus M1
With on the second bus M2, the first bus M1 set one back into line JX1 and one return back out on line CX1, the second bus M2 set one back into
Line JX2 and one returns back out line CX2.Pass through the first class interval between the first bus M1 of multiple electric substation SS in each power supply zone
Cable L1 is sequentially connected in series, and the second class interval cable is passed through between the second bus M2 of the adjacent electric substation SS in each power supply zone
L2 is sequentially connected in series, the first power supply zone Q1 be located at end electric substation SSa and the 4th subregion Q4 be located at end electric substation SSd it
Between pass through two winding net cable HL connections, the second power supply zone Q2 be located at end electric substation SSb and the 3rd power supply zone Q3
By two winding net cable HL connections between the electric substation SSc of end, looped network segmentation is equipped with each winding net cable HL
Switch HK.The middle-voltage network electric power system for the track traffic loop wire that the embodiment of the present invention is provided looped network in normal operation is segmented
Switch HK and be in a point position, every main transformer station provides power supply for two power supply zones in this institute supply district.When a main transformer electricity
During institute's off-the-line, 4 looped network block switch HK are closed, power supply is provided for all fronts I and II load by another main transformer station.Normally
During operation, each electric substation SS two sections of buses provide power supply by inlet wire JX1, JX2 respectively, when any inlet wire dead electricity, closure
Looped network block switch HK, power supply is provided by the power supply of another subregion for this section of bus.Compared with general electric power system, institute of the present invention
The difference of the electric power system of offer is, bar coupler is not provided between two sections of buses of electric substation, when one
During one section of bus dead electricity of electric substation, power supply no longer is supported by closing bar coupler, but is segmented by closing looped network
Switch supports power supply to realize, is understood with reference to the characteristics of loop wire, the connection plan meets the " each of first order load prescribed by standard
Should there be two independent current sources in individual electric substation ", therefore the connection plan is the characteristics of fully used loop wire itself, to track traffic
The connection plan of loop wire middle-voltage network electric power system is improved.Connection plan after improvement simpler, secondary circuit is few,
Latching logic simplifies, and the method for operation is also simpler.And can cut operating costs, each electric substation can reduce disconnecting switch 2
Platform, the face of Inflatable cabinet body 2,1 set of microcomputer complex protection device；Every electric substation directly reduces room area about 6m simultaneously2, every power transformation
About 400,000 yuans of institute's cost saving.
Second embodiment：It is preferred that, such as Fig. 2 is respectively provided with earthed switch 1 on every section of bus.Earthed switch is conducive to
Improve the security of whole electric power system.
3rd embodiment：It is preferred that, such as Fig. 1, each power supply zone is by two main transformers 2 from main transformer station
Place is introduced to be connected between two telegram in reply sources, two main transformers 2 by mother block switch.When a main transformer is out of service
When, mother block switch is closed, power supply is provided for two power supply zones in main transformer station's supply district by another main transformer.
Fourth embodiment：It is preferred that, such as Fig. 3 is provided with a safety at each looped network block switch HK and hauls oneself willingly into dress
Put.Compared with prior art, compared with prior art, difference is safe automatic bus only in looped network to the embodiment of the present invention
Set at segmentation, while realizing that safety hauls oneself willingly into function, cost saving.
5th embodiment：It is preferred that, such as Fig. 3-Fig. 4, between electric substation 4 and electric substation 5 provided with a safe automatic bus with
And a looped network block switch HK101, safe automatic bus includes prepared auto restart logic circuit and stand-by power supply (not shown),
The prepared auto restart logic circuit include two input with door, three input with door, two input OR gates, the first NOT gate, the second NOT gate and
Relay, electric substation 5 is end electric substation, and the first bus inlet wire of electric substation 5 and the first bus outlet of electric substation 5 connect
Connect the input of two input OR gates；First bus inlet wire of electric substation 5 and the first bus bar side of electric substation 5 be all connected with two inputs with
The input of door；Two inputs are connected the first NOT gate with the output end of door, and the first bus of electric substation 5 connects the second NOT gate；Two is defeated
The output end, the output end of the first NOT gate, the output end of the second NOT gate for entering OR gate are all connected with the input of three inputs and door；Three is defeated
Enter and relay is connected with the output end of door, relay connection looped network block switch HK101, looped network block switch HK101 connections are standby
Use power supply.In the case that the effect of safe automatic bus is power loss all the way, quick recovery system power supply capacity.Work as power transformation
5 the first bus when entering the first bus outgoing line side decompression of line side decompression or electric substation 5, two input OR gates conductings；When first
Bus enter line side and the first bus bar side simultaneously without pressure when, two inputs are turned on door；When working as, two input OR gates are turned on and two is defeated
Enter when not broken down with door locking and the first bus, three inputs are turned on door, and prepared auto restart logic circuit starts, relay
Delayed startup, after relay delay terminates, looped network block switch HK101 closures, in-put of spare power supply is used.The of electric substation 5
One bus enters entry condition of the first bus outgoing line side decompression of line side decompression or electric substation 5 for prepared auto restart logic circuit, first
Bus enters the first bus-bar fault the closing for prepared auto restart logic circuit of line side and the first bus bar side simultaneously without pressure or electric substation 5
Bolt part, when entry condition meets and barring condition does not occur, prepared auto restart logic circuit starts.The second of electric substation 5 is female
Line is again provided with backup auto-activating device, and principle is identical with the backup auto-activating device set on the first bus, will not be repeated here.This reality
Apply example and also reduce cost, backup power automatic switching function is realized using looped network block switch, each electric substation can reduce breaker 1, save
About cost.
The present embodiment also provides a kind of track traffic loop wire middle-voltage network electric power system provided based on first embodiment
Operation method, the operation method is：During normal operation, all looped network block switch HK, main transformer station S1 and master are opened
Electric substation S2 is the first power supply zone Q1, the second power supply zone Q2, the 3rd power supply zone Q3, the 4th power supply zone Q4 provide electricity
Source.When dead electricity occurs for any one winding net cable in the first power supply zone Q1, another winding net cable is still by the first main transformer
Electric institute S1 provides a telegram in reply source, and the looped network block switch HK of closure and the dead electricity looped network cable connection is to be somebody's turn to do by main transformer station S2
Two winding net cables in the offer of looped network cable one telegram in reply source, i.e. the first power supply zone Q1 of dead electricity are respectively by the first main transformer station
S1 and the second main transformer station S2 provides a telegram in reply source.In second power supply zone Q2 during any one winding net cable dead electricity, same point
Analysis, will not be repeated here.The operation method realizes winding net cable event on the premise of electric substation's method of operation is not changed
Self-rescue function during barrier.
The operation method difference with the prior art that the present embodiment is provided is also resided in, and is not had between two sections of buses of electric substation
Bar coupler is set, when one section of bus dead electricity of an electric substation, no longer confession is supported by closing bar coupler
Electricity, but support power supply is realized by closing looped network block switch.Specifically, when any electric substation in the first power supply zone Q1
Any dead electricity back into line when, it is another back into line still by main transformer station S1 provide a telegram in reply source, closure the first power supply zone Q1 on
Looped network block switch HK, provide a telegram in reply source by main transformer station S2 for the first power supply zone, i.e., two back into line respectively by difference
Main transformer station provide a telegram in reply source.When any inlet wire dead electricity of any electric substation in other power supply zones, same analysis,
It will not be repeated here.The advantage of the operation method for the electric power system that the embodiment of the present invention is provided compared with prior art is,
The characteristics of fully having used loop wire itself, is improved the connection plan of track traffic loop wire middle-voltage network electric power system,
While so that the operation method meets " should there be two independent current sources in each electric substation " of first order load prescribed by standard,
The method of operation is simpler.And the operation method that is provided of the present embodiment is powered with existing track traffic loop wire middle-voltage network and is
The operation method of system is compared, and is being realized on the premise of should there be two independent current sources (i.e. two telegram in reply sources) in each electric substation,
Roundabout power supply is avoided, and the method for operation is easier.
It is preferred that, two main transformers being connected with main transformer station S1 are main transformer ZY1 and main transformer ZY2, work as master
When transformer ZY1 is out of service, the mother block switch between closure main transformer ZY1 and main transformer ZY2, by main transformer
ZY2 is that the first power supply zone Q1` and the second power supply zone Q2 provide power supply.Main transformer station S1 is realized by mother block switch
There are two independent current sources in each electric substation in supply district.Have one in two main transformers being connected with main transformer station S2
When platform main transformer is out of service, same analysis will not be repeated here.
It is preferred that, when main transformer station's S1 off-the-lines, closure the first power supply zone Q1 on two looped network block switch HK with
And second two looped network block switch HK on power supply zone, it is the first power supply zone Q1, the second power supply point by main transformer station S2
Area Q2, the 3rd power supply zone Q3, the 4th power supply zone Q4 provide power supply.
It is preferred that, each electric substation by the first bus M1 of the electric substation inlet wire and the bus of electric substation second
M2 inlet wire provides power supply.
It is preferred that, the first bus M1's of electric substation 5 enters line side for 101 sides, the first bus M1 of electric substation 5 outgoing line side
For 102 sides, when the first bus M1 of electric substation 5 101 side decompressions or electric substation 5 the first bus M1 102 side decompressions, and
And the first bus M1 of electric substation 5 101 sides and the first bus M1 sides are without simultaneously without pressure, and the bus of electric substation 5 first
When M1 does not have failure, start prepared auto restart logic circuit, relay delayed startup after relay delay terminates, closes looped network segmentation
HK101 is switched, in-put of spare power supply is used.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of track traffic loop wire middle-voltage network electric power system, including multiple main transformer stations and multiple confessions for being distributed along loop wire
Electric subregion, each power supply zone includes the multiple electric substations being sequentially distributed along the loop wire, and each power supply zone is equal
The electric substation accessed at a main transformer station in two telegram in reply source to subregions, it is characterised in that：Each electric substation includes two
Section bus, two sections of buses are respectively the first bus and the second bus, and each section of bus is respectively provided with one and returns back out line back into line and one,
It is sequentially connected in series in each power supply zone between the first bus of multiple electric substations by the first class interval cable, it is each described
It is sequentially connected in series in power supply zone between the second bus of multiple electric substations by the second class interval cable, each power supply zone
By two winding net cable connections between end electric substation carried out by power transformation positioned at end, adjacent Liang Ge ends electric substation, respectively
Looped network block switch is equipped with the looped network cable.
2. track traffic loop wire middle-voltage network electric power system as claimed in claim 1, it is characterised in that：On every section of bus
It is respectively provided with earthed switch.
3. track traffic loop wire middle-voltage network electric power system as claimed in claim 1, it is characterised in that：Each power supply point
Qu Jun is accessed to be segmented by mother between two telegram in reply sources, two main transformers at a main transformer station by two main transformers and opened
Connection connects.
4. track traffic loop wire middle-voltage network electric power system as claimed in claim 1, it is characterised in that：Each looped network point
A safe automatic bus is provided with Duan Kaiguan.
5. track traffic loop wire middle-voltage network electric power system as claimed in claim 4, it is characterised in that：The safety hauls oneself willingly into dress
Put including prepared auto restart logic circuit and stand-by power supply, the prepared auto restart logic circuit include two inputs and door, three inputs and door,
Two input OR gates, the first NOT gate, the second NOT gate and relay, any bus of the end electric substation is end bus, with
The looped network block switch of end bus connection is end looped network block switch, and the outlet of the inlet wire and end bus of end bus is equal
Connection two inputs the input of OR gate；The inlet wire and end bus of end bus are all connected with the input of two inputs and door；Two is defeated
Enter and the first NOT gate is connected with the output end of door, end bus connects the second NOT gate；Two input output ends of OR gates, the first NOT gate
Output end, the output end of the second NOT gate are all connected with the input of three inputs and door；Three inputs are connected relay with the output end of door,
The relay connects end looped network block switch, and the end looped network block switch connects stand-by power supply.
6. a kind of operation method based on the track traffic loop wire middle-voltage network electric power system provided in such as claim 1, it is special
Levy and be：During normal operation, all looped network block switches are opened, every main transformer station is all power supplies point in its supply district
Area provides power supply；
During a winding net cable dead electricity in any power supply zone, master of another winding net cable still by being connected with the power supply zone
Electric substation provides a telegram in reply source, and the looped network block switch of closure and the looped network cable connection of dead electricity is by another main transformer station
The looped network cable of dead electricity provides a telegram in reply source.
7. a kind of operation method based on the track traffic loop wire middle-voltage network electric power system provided in such as claim 3, it is special
Levy and be：
In any power supply zone, when a main transformer is out of service, close in the power supply zone between two main transformers
Mother block switch, provide power supply by another main transformer for all electric substations in the power supply zone supply district.
8. operation method as claimed in claim 6, it is characterised in that：When main transformer station's off-the-line, main transformer electricity is closed
Looped network block switch in institute's supply district on all power supply zones, is main transformer station's supply district by another main transformer station
All power supply zones in interior all power supply zones and another main transformer station's supply district provide power supply.
9. operation method as claimed in claim 6, it is characterised in that：Each electric substation is first female by the electric substation
The inlet wire of the inlet wire of line and the bus of electric substation second provides power supply.
10. a kind of operation method based on the track traffic loop wire middle-voltage network electric power system provided in such as claim 5, it is special
Levy and be：Enter line side decompression or the outgoing line side decompression of end bus when end bus, and end bus enter line side with
And end bus bar side is without simultaneously without pressure, and end bus, when not breaking down, prepared auto restart logic circuit starts, relay
Delayed startup, end looped network block switch is closed therewith, and in-put of spare power supply is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502574.2A CN107171323B (en) | 2017-06-27 | 2017-06-27 | Rail transit loop medium-voltage network power supply system and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502574.2A CN107171323B (en) | 2017-06-27 | 2017-06-27 | Rail transit loop medium-voltage network power supply system and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107171323A true CN107171323A (en) | 2017-09-15 |
| CN107171323B CN107171323B (en) | 2023-04-18 |
Family
ID=59826359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710502574.2A Active CN107171323B (en) | 2017-06-27 | 2017-06-27 | Rail transit loop medium-voltage network power supply system and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107171323B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718087A (en) * | 2018-06-29 | 2018-10-30 | 成都交大许继电气有限责任公司 | Spare power automatic switching system suitable for rail traffic medium-pressure electricity supply looped network |
| CN110460025A (en) * | 2019-08-15 | 2019-11-15 | 国网四川省电力公司宜宾供电公司 | Quick method and device thereof of unlinking |
| CN111562774A (en) * | 2020-07-14 | 2020-08-21 | 宝信软件(成都)有限公司 | Distributed parallel control method and system for subway network electric power SCADA |
| CN113852062A (en) * | 2021-09-08 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Rail transit power supply system based on three-phase inverter power supply device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050052801A1 (en) * | 2003-09-05 | 2005-03-10 | Ghali Gamal A. | Method for tapping a high voltage transmission line and substation using the same |
| JP2012016120A (en) * | 2010-06-30 | 2012-01-19 | Tokyo Electric Power Co Inc:The | Apparatus and method for switching reception end of transmission line |
| CN202405780U (en) * | 2011-10-26 | 2012-08-29 | 浙江省电力公司 | medium voltage distribution network |
| CN202455158U (en) * | 2012-01-19 | 2012-09-26 | 无锡市科环自动化设备有限公司 | Bus coupler cabinet backup automatic switching device for rail transit power supply system |
| CN103066560A (en) * | 2012-12-21 | 2013-04-24 | 国电南瑞科技股份有限公司 | Method of improving current protection performance under connection mode of short tandem looping-in multi-level cascade |
| CN103887879A (en) * | 2014-03-25 | 2014-06-25 | 广州供电局有限公司 | Petal type power distribution network protection control system |
| CN104933635A (en) * | 2015-06-12 | 2015-09-23 | 国家电网公司 | Method for contact analysis of distribution network based on GIS (Geographic Information System) |
| CN205029331U (en) * | 2015-10-22 | 2016-02-10 | 中铁电气化勘测设计研究院有限公司 | Few big ring of subregion cluster structure of urban rail transit 35kV middling pressure network |
| CN105610236A (en) * | 2016-01-14 | 2016-05-25 | 江苏金智科技股份有限公司 | Method for automatic switching of emergency power supply of series network |
| CN106532683A (en) * | 2016-10-14 | 2017-03-22 | 国网上海市电力公司 | Self-healing method of 110kV transformer station hand-in-hand power supply |
-
2017
- 2017-06-27 CN CN201710502574.2A patent/CN107171323B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050052801A1 (en) * | 2003-09-05 | 2005-03-10 | Ghali Gamal A. | Method for tapping a high voltage transmission line and substation using the same |
| JP2012016120A (en) * | 2010-06-30 | 2012-01-19 | Tokyo Electric Power Co Inc:The | Apparatus and method for switching reception end of transmission line |
| CN202405780U (en) * | 2011-10-26 | 2012-08-29 | 浙江省电力公司 | medium voltage distribution network |
| CN202455158U (en) * | 2012-01-19 | 2012-09-26 | 无锡市科环自动化设备有限公司 | Bus coupler cabinet backup automatic switching device for rail transit power supply system |
| CN103066560A (en) * | 2012-12-21 | 2013-04-24 | 国电南瑞科技股份有限公司 | Method of improving current protection performance under connection mode of short tandem looping-in multi-level cascade |
| CN103887879A (en) * | 2014-03-25 | 2014-06-25 | 广州供电局有限公司 | Petal type power distribution network protection control system |
| CN104933635A (en) * | 2015-06-12 | 2015-09-23 | 国家电网公司 | Method for contact analysis of distribution network based on GIS (Geographic Information System) |
| CN205029331U (en) * | 2015-10-22 | 2016-02-10 | 中铁电气化勘测设计研究院有限公司 | Few big ring of subregion cluster structure of urban rail transit 35kV middling pressure network |
| CN105610236A (en) * | 2016-01-14 | 2016-05-25 | 江苏金智科技股份有限公司 | Method for automatic switching of emergency power supply of series network |
| CN106532683A (en) * | 2016-10-14 | 2017-03-22 | 国网上海市电力公司 | Self-healing method of 110kV transformer station hand-in-hand power supply |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718087A (en) * | 2018-06-29 | 2018-10-30 | 成都交大许继电气有限责任公司 | Spare power automatic switching system suitable for rail traffic medium-pressure electricity supply looped network |
| CN110460025A (en) * | 2019-08-15 | 2019-11-15 | 国网四川省电力公司宜宾供电公司 | Quick method and device thereof of unlinking |
| CN110460025B (en) * | 2019-08-15 | 2021-11-23 | 国网四川省电力公司宜宾供电公司 | Quick ring-opening method and device |
| CN111562774A (en) * | 2020-07-14 | 2020-08-21 | 宝信软件(成都)有限公司 | Distributed parallel control method and system for subway network electric power SCADA |
| CN113852062A (en) * | 2021-09-08 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Rail transit power supply system based on three-phase inverter power supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107171323B (en) | 2023-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107171323A (en) | A kind of track traffic loop wire middle-voltage network electric power system and its operation method | |
| CN104539043B (en) | A kind of automatic switching device of standby power supply system haul oneself willingly into method | |
| CN103855713A (en) | Power distribution net rack wiring structure | |
| CN107612051A (en) | A kind of Ac/dc Power Systems based on dual redundant electric power electric transformer | |
| CN107357180A (en) | A kind of integrated control system of signal and gate | |
| CN105655879B (en) | The voltage arrangement of 110 kilovolts of system busbar combining unit duplicate system retrofits of intelligent substation double bus scheme mode | |
| CN106787141A (en) | A kind of extension spare power automatic switching method of 10kV switchyards interconnection | |
| CN103872682A (en) | Switching station feeder line automatic protection method | |
| CN113972653A (en) | Electric network net rack | |
| CN102801207A (en) | Backup auto-switching voltage loss start interlocking method for multi-power double-bus substation | |
| CN102545376B (en) | Spare power automatic switching system for 220 KV line faults | |
| CN206850427U (en) | A kind of track traffic loop wire middle-voltage network electric power system | |
| CN103166308B (en) | A kind of bus differential protection locking prepared auto restart loop | |
| CN112332521B (en) | Sectional spare power automatic switching circuit configured by bus main transformer low-voltage double branches and control method thereof | |
| CN207128666U (en) | A kind of urban track traffic three Phase Inverter Device | |
| CN103779843B (en) | Based on territory, station protection system and the guard method thereof of differential flexible overlapping subregion | |
| CN106786594B (en) | A kind of alternating current-direct current mixing distribution system containing important load | |
| CN206041492U (en) | Two closed loops or how loop -locked interconnected distribution network connect line knot to construct and power supply system | |
| CN105162254B (en) | Transformer station's digital improvement method | |
| CN103199444B (en) | Three power supply Switching Stations | |
| CN215448009U (en) | Environment monitoring system based on flexible direct current wind-solar energy storage | |
| CN106787153A (en) | A kind of inlet wire for internal bridge form is for throwing method | |
| CN203813438U (en) | Power distribution net rack wiring structure | |
| CN113765152A (en) | Chain type energy Internet suitable for expressway and canal and control method thereof | |
| RU2211515C2 (en) | Uninterrupted power supply for oil line shut-off valves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |