CN107370235A - Based on the adaptive region spare power automatic switching system and method under composite power supply pattern - Google Patents
Based on the adaptive region spare power automatic switching system and method under composite power supply pattern Download PDFInfo
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- CN107370235A CN107370235A CN201710551037.7A CN201710551037A CN107370235A CN 107370235 A CN107370235 A CN 107370235A CN 201710551037 A CN201710551037 A CN 201710551037A CN 107370235 A CN107370235 A CN 107370235A
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- 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
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
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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
- 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
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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
- 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
Abstract
The invention discloses the adaptive region spare power automatic switching system under a kind of pattern based on composite power supply and method, it is capable of the method for operation of the current compound power network of automatic identification, pass through the analog quantity and protection signal of transformer station where gathering backup auto-activating device in real time, carry out accident analysis positioning, in combination with standby throw on the spot optimal power supply switching strategy is provided with standby throw of wide area, quick output electrical control order isolated fault, and protection control is carried out to power network, system response speed is fast, improve power supply reliability, improve power supply quality, lift operation of power networks efficiency, and then improve the reliability of power network, power off time caused by shortening failure, structural security risk is excluded from source, realize the condition that composite power supply system automatically switches, power network power supply reliability is set to reach advanced world standards, have a good application prospect.
Description
Technical field
The present invention relates to power system power supply reliability consideration technical field, and in particular to one kind is based on composite power supply pattern
Under adaptive region spare power automatic switching system and method.
Background technology
With China's west-to-east power transmission and on national network strategy implementation, electric power safety with electric power networks scale increasingly
Expansion is closely linked with people's lives and social stability.Due to economic caused by power grid accident and politics thing
Part is also of common occurrence at home and abroad.At present, power grid security has increased to national security problem.Because Automation of Electric Systems is advised
Mould gradually expands, and substantial amounts of looped network and short-term road occurs, and the control protection and safe distribution of electric power operation for intelligent grid are brought
Great challenge.
In case throw the inexorable trend that the intelligent distribution network that control is characterized is following power distribution network development.For power grid accident
Complexity and polytropy are, it is necessary to study a kind of adaptive region spare power automatic switching system of classification, the operation of automatic identification current electric grid
Mode, and multiple spot Integrated comparative is carried out using real-time network communication, for large-scale complex accident, realize quick, sensitive event
Barrier positioning and failure removal, provide recovery policy and are converted to electrical command, be issued to specific spare power automatic switching system performs device,
Recover power network power supply, be current urgent problem.
The content of the invention
The purpose of the present invention is to overcome the complexity for power grid accident and polytropy in the prior art, is not proposed feasible
Standby throwing control system the problem of.The present invention based on the adaptive region spare power automatic switching system and method under composite power supply pattern,
Be capable of the method for operation of the current compound power network of automatic identification, by the analog quantity of transformer station where gathering backup auto-activating device in real time and
Protection signal, accident analysis positioning is carried out, optimal power supply switching plan is provided with standby throw of wide area in combination with standby throw on the spot
Slightly, it is quick to export electrical control order isolated fault, and protection control is carried out to power network, and then the standby throwing of power system is realized,
Shorten the power off time of electric network fault, improve power supply quality, have a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of adaptive region spare power automatic switching system under pattern based on composite power supply, apply in double mother partitions band bypass connection
Composite power supply pattern under, including N number of spare power automatic switching system device, selection wherein any one spare power automatic switching system device be used as it is standby from
Central station equipment is thrown, each spare power automatic switching system device is provided with analog acquisition interface, intake acquisition interface and the amount of outputing output
Interface；
Double mother partitions are connected to a spare power automatic switching system dress with each statements based on collusion station under bypass connection composite power supply pattern
Put；
The analog acquisition interface of the spare power automatic switching system device, for being responsible for the line voltage distribution and circuit at corresponding statements based on collusion station
Current-mode analog quantity gathers, and calculates busbar voltage according to collection capacity, and is converted into corresponding electrical quantity status signal, above delivers to standby
Haul oneself willingly into central station equipment；
The intake acquisition interface of the spare power automatic switching system device, for the electrical quantity status signal for being responsible for receiving and open
Signal is measured in pass, and carries out fault location, automatic to judge wide area and prepared auto restart action priority, and being filled by prepared auto restart master station on the spot
Put and send electrical control order to corresponding backup auto-activating device；
The amount of the outputing output interface of the spare power automatic switching system device, for being responsible for receiving the transmission of prepared auto restart central station equipment
Electrical control order, the electrical control to corresponding statements based on collusion station is completed, realizes power switching.
It is foregoing based on the adaptive region spare power automatic switching system under composite power supply pattern, double mother partitions band bypass connections
Composite power supply pattern under power network, including single double-bus power station, single independent electrical source station, it is multiple statements based on collusion station, it is described more
Individual statements based on collusion station forms ring connection, and the single independent electrical source station powers for the statements based on collusion station of inner side, under normal operation mode, open loop
Point is the block switch at both sides statements based on collusion station, and remaining statements based on collusion station is to close position；Under non-normal operation mode, single independent electrical source station
Out of service, statements based on collusion station forms annular formula wiring hand in hand, and the statements based on collusion station is stood for the statements based on collusion of single mother partition.
It is foregoing based on the adaptive region spare power automatic switching system under composite power supply pattern, delivered on the backup auto-activating device standby
The electrical quantity status signal of central station equipment is hauled oneself willingly into, including I is female and mother II has pressure passive state signal, No.1 inlet wire and No. two inlet wires
There are pressure passive state signal, No.1 inlet wire and No. two inlet wires to have stream without stream mode signal, inlet wire fault current status signal, inlet wire
Fault current direction status signal, inlet wire failure zero-sequence current status signal and inlet wire fault negative sequence current status signal.
Foregoing is sent based on the adaptive region spare power automatic switching system under composite power supply pattern, the prepared auto restart central station equipment
Electrical control order, including prepared auto restart allows order, jumping circuit switch command and zygonema way switch order on the spot.
It is foregoing based on the adaptive region spare power automatic switching system under composite power supply pattern, it is characterised in that：N number of prepared auto restart dress
It is connected between putting by single-mode fiber, and real-time data communication is carried out in a manner of GOOSE message.
It is foregoing based on the adaptive region spare power automatic switching system under composite power supply pattern, the throwing of the prepared auto restart central station equipment
Move back to operate by the setting to control word and complete.
A kind of adaptive region spare power automatic switching method under pattern based on composite power supply, it is above-mentioned based on composite power supply pattern
Under adaptive region spare power automatic switching system control method, including composite power supply power network normal operation control model, composite power supply
Power network abnormal running control model, process are as follows：
Under composite power supply power network normal operation mode, the recharge logic of each backup auto-activating device is patrolled for the charging of prepared auto restart on the spot
Collect, each backup auto-activating device judges whether statements based on collusion station corresponding to its connection is in normal inlet wire or bridge for throwing pattern, if meeting it
A kind of middle pattern, then spare power automatic switching system input carries out prepared auto restart charging, and carry out the pattern simultaneously and charge to charging on the spot on the spot
Complete；
If each backup auto-activating device meets prepared auto restart electric discharge logical condition on the spot, on the spot the electric discharge of prepared auto restart input；
Under composite power supply power network abnormal running control model, the recharge logic of each backup auto-activating device fills for wide area prepared auto restart
Electric logic, each backup auto-activating device judge that the annular that statements based on collusion station corresponding to its connection is formed is handed in hand in wiring, if only one
The switch at statements based on collusion station in be divided to the switch at position while remaining statements based on collusion station all close position and two sections of main power supply station bus have pressure,
All statements based on collusion stations bus has pressure, in the absence of other discharging conditions, if above-mentioned condition meets simultaneously, controls each backup auto-activating device wide
Domain prepared auto restart, and switch are in and divide bit string to carry out prepared auto restart, and being somebody's turn to do simultaneously on the spot for backup auto-activating device corresponding to station is standby
Pattern charges to charging complete；If each backup auto-activating device meets wide area prepared auto restart electric discharge logical condition, the electric discharge of wide area prepared auto restart.
It is foregoing based on the adaptive region spare power automatic switching method under composite power supply pattern, it is characterised in that：It is described standby on the spot
Electric discharge logical condition is hauled oneself willingly into, meets one of following condition, is specially that (1) region spare power automatic switching system is not put into；(2) it is standby to open
Pass is not at jumping position；(3) service entrance switch is manually disconnected；(4) switch is refused to jump or refuses to close in action process；(5) prepared auto restart on the spot
Act successfully.
It is foregoing based on the adaptive region spare power automatic switching method under composite power supply pattern, it is characterised in that：The wide area is standby
Electric discharge logical condition is hauled oneself willingly into, meets one of following condition, is specially that (1) region spare power automatic switching system is not put into；(2) open loop point
Switch closes position；(3) backup auto-activating device where open loop point receives abnormal；(4) lead to when main website receives any backup auto-activating device information
Letter is abnormal；(5) two sections of main power supply station bus is without pressure；(6) either switch malposition；(7) any statements based on collusion switch is manually jumped
Open；(8) statements based on collusion switch is refused to jump；(9) certain circuit at statements based on collusion station throws maintenance；(10) open loop point both sides failure；(11) where open loop point
Power station bus-bar fault；(12) open loop point offside power station bus-bar fault；(13) line fault where open loop point；(14) where open loop point
Circuit offside switchs jump；(15) it is unconfirmed after system acting；(16) wide area prepared auto restart feed motion.
It is foregoing based on the adaptive region spare power automatic switching method under composite power supply pattern, after charging complete, each prepared auto restart
Device judges operational mode automatically, if meeting following condition for the moment：(1) non-open loop point switch jumps position without stream；(2) power station is female
Line is without pressure and outlet is without stream；(3) there is bus bar differential prptection operation；(4) there is the action of circuit optical-fiber longitudinal difference protection；(5) gone here and there where open loop point
For station or its offside statements based on collusion station are without pressure and inlet wire is without stream, then region spare power automatic switching system startup, fault location are carried out, waits tripping operation to prolong
Shi Hou, the trip signal of isolated fault is performed, position, circuit are jumped when confirming that the former main power supply station close to trouble point dead electricity station switchs
Without stream and bus without pressure after, close the line switching of former open loop point, recover to act in collusion to make each other's confessions to dead electricity by the independent electrical source station of opposite side and stand
Power supply, realize power switching.
The beneficial effects of the invention are as follows：The present invention based on the adaptive region spare power automatic switching system under composite power supply pattern and
Method, it is capable of the method for operation of the current compound power network of automatic identification, passes through the mould of transformer station where gathering backup auto-activating device in real time
Analog quantity and protection signal, accident analysis positioning is carried out, optimal power supply is provided with standby throw of wide area in combination with standby throw on the spot
Switching strategy, it is quick to export electrical control order isolated fault, and protection control is carried out to power network, system response speed is fast, carries
High power supply reliability, improve power supply quality, lifting operation of power networks efficiency, and then improve the reliability of power network, shortening failure causes
Power off time, structural security risk is excluded from source, realize composite power supply system automatically switch condition, supply power network
Electric reliability is reached advanced world standards, and is had a good application prospect.
Brief description of the drawings
Fig. 1 is the system block diagram based on the adaptive region spare power automatic switching system under composite power supply pattern of the present invention；
Fig. 2 is schematic diagram of double mother partitions with bypass supply powering mode of the present invention；
Fig. 3 is the schematic diagram of the chain type powering mode of the present invention；
Fig. 4 is the backboard plug-in unit schematic diagram of the spare power automatic switching system device of the present invention；
Fig. 5 is the signal of the work-based logic based on the adaptive region spare power automatic switching method under composite power supply pattern of the present invention
Figure.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in figure 1, the present invention based on the adaptive region spare power automatic switching system under composite power supply pattern, apply in double mothers
Under the composite power supply pattern of segmentation band bypass connection, including N number of spare power automatic switching system device, select wherein any one prepared auto restart system
Bulk cargo is put as prepared auto restart central station equipment, and each spare power automatic switching system device is provided with analog acquisition interface, intake collection connects
Mouth and the amount of outputing output interface；
Double mother partitions are connected to a spare power automatic switching system dress with each statements based on collusion station under bypass connection composite power supply pattern
Put；
The analog acquisition interface of the spare power automatic switching system device, for being responsible for the line voltage distribution and circuit at corresponding statements based on collusion station
Current-mode analog quantity gathers, and calculates busbar voltage according to collection capacity, and is converted into corresponding electrical quantity status signal, above delivers to standby
Haul oneself willingly into central station equipment；
The intake acquisition interface of the spare power automatic switching system device, for the electrical quantity status signal for being responsible for receiving and open
Signal is measured in pass, and carries out fault location, automatic to judge wide area and prepared auto restart action priority, and being filled by prepared auto restart master station on the spot
Put and send electrical control order to corresponding backup auto-activating device；
The amount of the outputing output interface of the spare power automatic switching system device, for being responsible for receiving the transmission of prepared auto restart central station equipment
Electrical control order, the electrical control to corresponding statements based on collusion station is completed, realize the power switching of power network.
As shown in Fig. 2 the power network under composite power supply pattern of the double mother partitions with bypass connection, including single double-bus
Power station, single independent electrical source station, multiple statements based on collusion stations, the multiple statements based on collusion station form ring connection, the single independent current source
Stand and powered for the statements based on collusion station of inner side, under normal operation mode, open loop point is the block switch at both sides statements based on collusion station, and remaining statements based on collusion are stood
It is to close position；Under non-normal operation mode, single independent electrical source station is out of service, and statements based on collusion station forms annular formula wiring hand in hand,
The statements based on collusion station is single mother partition statements based on collusion station.
The electrical quantity status signal of prepared auto restart central station equipment is delivered on the backup auto-activating device, including I is female and mother II has pressure
Passive state signal, No.1 inlet wire and No. two inlet wires have pressure passive state signal, No.1 inlet wire and No. two inlet wires to have stream without stream shape
State signal, inlet wire fault current status signal, inlet wire fault current direction status signal, inlet wire failure zero-sequence current status signal
With inlet wire fault negative sequence current status signal.
The electrical control order that the prepared auto restart central station equipment is sent, including prepared auto restart allows order, jumping circuit to open on the spot
Close order and zygonema way switch order.
It is connected between N number of backup auto-activating device by single-mode fiber, and carries out real time data in a manner of GOOSE message and lead to
Letter,
The throwing of the prepared auto restart central station equipment is moved back to operate by the setting to control word and completed.
As shown in figure 3, the present invention based on the adaptive region spare power automatic switching method under composite power supply pattern, including compound confession
Power network normal operation control model, composite power supply power network abnormal running control model, process is as follows,
Under composite power supply power network normal operation mode, the recharge logic of each backup auto-activating device is patrolled for the charging of prepared auto restart on the spot
Collect, each backup auto-activating device judges whether statements based on collusion station corresponding to its connection is in normal inlet wire or bridge for throwing pattern, if meeting it
A kind of middle pattern, then spare power automatic switching system input carries out prepared auto restart charging, and carry out the pattern simultaneously and charge to charging on the spot on the spot
Complete；
If each backup auto-activating device meets prepared auto restart electric discharge logical condition on the spot, on the spot the electric discharge of prepared auto restart input；
Under composite power supply power network abnormal running control model, the recharge logic of each backup auto-activating device fills for wide area prepared auto restart
Electric logic, each backup auto-activating device judge that the annular that statements based on collusion station corresponding to its connection is formed is handed in hand in wiring, if only one
The switch at statements based on collusion station in be divided to the switch at position while remaining statements based on collusion station all close position and two sections of main power supply station bus have pressure,
All statements based on collusion stations bus has pressure, in the absence of other discharging conditions, if above-mentioned condition meets simultaneously, controls each backup auto-activating device wide
Domain prepared auto restart, and switch are in and divide bit string to carry out prepared auto restart, and being somebody's turn to do simultaneously on the spot for backup auto-activating device corresponding to station is standby
Pattern charges to charging complete；If each backup auto-activating device meets wide area prepared auto restart electric discharge logical condition, the electric discharge of wide area prepared auto restart.
The electric discharge of the prepared auto restart on the spot logical condition, meets one of following condition, is specially (1) region prepared auto restart system
System is not put into；(2) backup circuit breaker is not at jumping position；(3) service entrance switch is manually disconnected；(4) in action process switch refuse jump or
Refuse to close；(5) prepared auto restart acts successfully on the spot.
The wide area prepared auto restart electric discharge logical condition, meets one of following condition, is specially (1) region prepared auto restart system
System is not put into；(2) open loop point switch closes position；(3) backup auto-activating device where open loop point receives abnormal；(4) main website receives any
Communication abnormality during backup auto-activating device information；(5) two sections of main power supply station bus is without pressure；(6) either switch malposition；(7) appoint
One statements based on collusion switch is by artificial tripping；(8) statements based on collusion switch is refused to jump；(9) certain circuit at statements based on collusion station throws maintenance；(10) open loop point both sides event
Barrier；(11) power station bus-bar fault where open loop point；(12) open loop point offside power station bus-bar fault；(13) circuit event where open loop point
Barrier；(14) circuit offside switch jump where open loop point；(15) it is unconfirmed after system acting；(16) wide area prepared auto restart closes a floodgate dynamic
Make.
After charging complete, each backup auto-activating device judges operational mode automatically, if meeting following condition for the moment：(1) it is non-
Open loop point switch jumps position without stream；(2) power station bus is without pressure and outlet is without stream；(3) there is bus bar differential prptection operation；(4) there is circuit light
Fine longitudinal difference protection action；(5) statements based on collusion station where open loop point or its offside statements based on collusion station without pressure and inlet wire without stream, then region prepared auto restart system
System startup, carries out fault location, after waiting tripping operation delay, performs the trip signal of isolated fault, when confirmation is lost close to trouble point
The former main power supply station switch in power station jump position, circuit without stream and bus without pressure after, the line switching of former open loop point is closed, by another
The power supply stood of being acted in collusion to make each other's confessions to dead electricity is recovered in the independent electrical source station of side, realizes the power switching of power network.
" charging " one word of above-mentioned record adopts the term inside automatic switching device of standby power supply, and region spare power automatic switching system allows
Each condition (such as pressing plate, control word, the position of the switch, busbar voltage) of work starts to charge up after meeting, the charged time (can pass through
Fixed value adjusting, typically it is defaulted as 15 seconds) charging preparation is completed afterwards, logic is thrown in charging complete standby to be started, herein
Charging is interpreted as region spare power automatic switching system and meets condition of work, ready.
Below according to the present invention based on the adaptive region spare power automatic switching system and method under composite power supply pattern, one is introduced
Specific embodiment,
In embodiment as shown in Figure 2, under normal operation, 1 double mother partition power station, 1 independent electrical source station is gone here and there with 3
For in double mother partitions band bypass connection powering mode primary connection at station, the block switch at C stations and E stations is open loop point, power station A
Band outlet switch A1 A2, and C stations I mothers are powered with E stations mother II by power station A；Power station B band outlet switch B1 B2, and C stations I
Female, E stations female stood with D of II is powered by power station B.Each circuit is it is possible that line fault, power station and statements based on collusion station may
Generation bus-bar fault, when any of the above-described failure of generation causes some bus loss of pressure, the present invention understands tripping close to trouble point dead electricity
The former main power supply switch stood, starts prepared auto restart, preferential combination switch C3 on the spot, if hauling oneself willingly into unsuccessful, conjunction E3；
When power station B maintenance, when B1D4 and B2D5 circuits are out of service, as shown in figure 3, C D E stations become to pull bangle
Formula statements based on collusion structure, now open loop point can be any line switching or block switch in the structure, and other switches are closing position
Operation, under this method of operation, line fault or bus-bar fault may occur everywhere for K1-K10, line switching A1, A2,
It may occur to switch jump failure at C1, C2, C3, D1, D2, D3, E1, E2, E3, bus loss of pressure event may occur for power station
Barrier.If any of the above-described failure of generation causes three some bus dead electricity in station, the automatic tripping of present invention meeting closes on the switch of trouble point,
Open loop point D1 is closed, ensures the statements based on collusion station after isolated fault respectively by two sections of bussed supplies of power station A.
The adaptive region spare power automatic switching system of the present invention can support 2 220kV power stations, the chain type at 2 to 5 statements based on collusion stations to supply
Power mode, generally for the statements based on collusion station number of chain type Connection Mode not over 5, the system can be currently electric with automatic identification
Network operation pattern is simultaneously corresponding on the spot for throwing and wide area for throwing action according to fault type input.Such as K7 failures, D stations are standby on the spot to throw
It may all be acted with the standby throwing of wide area, integrated spare power automatic switching system preferentially acts wide area for throwing, if wide area is unsuccessful for throwing, can carry out
D stations are standby on the spot to throw.
As shown in figure 1, region spare power automatic switching system configures whole spare power automatic switching system according to the principle of hierarchical control, in power supply
Stand and act in collusion to make each other's confessions to stand and backup auto-activating device is set respectively, a wherein table apparatus can be chosen according to running situation and be filled as prepared auto restart master station
Put.The serial connection of physical layer is carried out between each backup auto-activating device by single-mode fiber, data flow passes through respective backup auto-activating device
Embedded ethernet switching module carries out serial data communication, and link layer star is established between backup auto-activating device and sub-station device
Connection, simplify communication wires, reduce the hardware cost for entering row data communication by using outside switching equipment, each backup auto-activating device
Busbar voltage is calculated according to the line voltage distribution and line current analog quantity collected and is converted into the status signal of respective electric amount,
Such as bus has pressure, bus to have stream, circuit without signals such as streams without pressure, circuit, is switched with corresponding statements based on collusion station and adjacent power station
Amount signal together in a manner of remote signalling displacement on deliver to prepared auto restart central station equipment.
Prepared auto restart central station equipment carries out fault location according to the electrical quantity status signal and on-off model received, automatically
Judge wide area and on the spot prepared auto restart action priority, send tripping operation according to standby throwing success or not classification or close a floodgate and order to corresponding
Backup auto-activating device；Remaining backup auto-activating device performs the order of central station equipment, and the tripping operation received, combined floodgate order are converted into routine
Contact is outputed and is linked into traditional tripping operation, closing circuit realizes jump, the operation of zygonema way switch, while completes the conjunction of place transformer station
The functions such as lock after accelerated protection, PT broken strings, CT broken strings.
It is known that the protection device in power station includes：Power station configures busbar protective device；Statements based on collusion station configuration bus protection
Device and equipment for protecting optical fibre longitudinal difference；The busbar protective device at wherein each statements based on collusion station and the action connection point of equipment for protecting optical fibre longitudinal difference
The intake acquisition interface of corresponding sub-station device is connected respectively.
As shown in figure 4, the backup auto-activating device back of the body inserts CPU card, AC plug-in units, two blocks of IO plug-in units and power insert.CPU card is born
Blame analog acquisition and calculating, substation state logic computing and line status analysis, operational mode identification, standby throwing logical operation
With action.And integrated ethernet switching module, it is responsible for transmitting-receiving breaker tripping and closing order, respective switch amount signal, and system and each saves
The MESSAGE EXCHANGE of point；Line voltage distribution and current-mode analog quantity are converted into small-signal by AC plug-in units；IO plug-in units are responsible for opening adopting into signal
Collection and tripping operation, outlet of closing a floodgate.
As shown in figure 5, the work-based logic based on the adaptive region spare power automatic switching method under composite power supply pattern of the present invention,
Region spare power automatic switching system can be by operational mode corresponding to breath automatic identification of being delivered letters on each device, in the present embodiment, normal fortune
In the case of row, each transformer substation spare power automatic switching assembly first carries out standby throwing logic on the spot when breaking down.When circuit B1D4 and B2D5 are equal
When the failure situation of dead electricity occurs, the switch on the region spare power automatic switching system meeting tripping circuit, and preferentially close C3 switches.If haul oneself willingly into
Unsuccessful, then tripping C3 is switched, and closes E3 switches.When bypass supply station is out of service, for the string under chain type Connection Mode
For loop, meet only have a switch dividing position, and when running status meets default operational mode and charge condition, region is standby
Self-operation system completes wide area and on the spot standby throwing charging by adjusting delay.Under charge condition, meet any discharging condition, then for certainly
Throwing system is discharged immediately.In the case of grid collapses, spare power automatic switching system can be according to operational mode, fault type, failure
Position prioritizing selection wide area is standby to be thrown to realize the purpose of fast recovery of power supply.After system completes fault location, complete set start-up, wait
The trip signal (while sending the order of tripping small power supply) of isolated fault is performed after tripping operation delay, confirms that trip switch becomes composition position
And switched without waiting combined floodgate delay to close open loop point after stream mode again.If wide area prepared auto restart is unsuccessful, starts standby throw on the spot and patrol
Volume, and ensure to avoid being delayed for tripping operation together in TU1 in fault bus figure, TU3 is delayed to close a floodgate.
Region spare power automatic switching system action logic and operation of power networks state, statements based on collusion station number, open loop point position, electric network fault class
Type is closely related.During electric network fault, system central station equipment selects to be adapted to according to statements based on collusion station number, open loop point position, fault type
Prepared auto restart logic, tripping close to trouble point dead electricity station former main power supply switch, close statements based on collusion loop original place in open loop point
Line switching.By taking the power network shown in Fig. 2 and Fig. 3 actually different operational modes as an example, its fault actions logic is analyzed, it is specific as follows
Shown in table 1, table 2：
1 pair of mother partition band bypass supply wiring prepared auto restart action logic table of table
| Sequence number | Fault location | Spare power automatic switching system action logic |
| 1. | K1 point failures | TRIP A1 C1, combination switch C3 |
| 2. | K2 point failures | TRIP C1 C3, C stations are standby to launch electricity |
| 3. | K3 point failures | TRIP C2 C3, C stations are standby to launch electricity |
| 4. | K4 point failures | TRIP C2 D1, combination switch C3 |
| 5. | K5 point failures | TRIP D4 D1 D3, combination switch C3 |
| 6. | K6 point failures | TRIP D5 D2 D3, combination switch E3 |
| 7. | K7 point failures | TRIP D2 E1, combination switch E3 |
| 8. | K8 point failures | TRIP E1 E3, E stations are standby to launch electricity |
| 9. | K9 point failures | TRIP E2 C3, E stations are standby to launch electricity |
| 10. | K10 point failures | TRIP A2 E2, combination switch E3 |
| 11. | K11 point failures | TRIP D4 B1 |
| 12. | K12 point failures | TRIP D5 B2 |
| 13. | The equal dead electricity of B1D4 and B2D5 | TRIP D4 B1 D5 B2, combination switch C3 |
The chain type wiring of table 2 is standby to throw action logic table
To sum up, the adaptive region spare power automatic switching system and method under the pattern of the invention based on composite power supply, can be automatic
The method of operation of the current compound power network of identification, passes through the analog quantity and protection act of transformer station where gathering backup auto-activating device in real time
Signal, accident analysis positioning is carried out, optimal power supply switching strategy is provided with standby throw of wide area in combination with standby throw on the spot, it is quick defeated
Go out electrical control order isolated fault, and protection control is carried out to power network, system response speed is fast, improves power supply reliability, changes
Kind power supply quality, lifting operation of power networks efficiency, and then the reliability of power network is improved, shorten power off time caused by failure, from source
Structural security risk is excluded on head, the condition that composite power supply system automatically switches is realized, power network power supply reliability is reached state
Border advanced level, has a good application prospect.
General principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (10)
1. based on the adaptive region spare power automatic switching system under composite power supply pattern, it is characterised in that：Apply by double mother partition bands
Under the composite power supply pattern of road wiring, including N number of spare power automatic switching system device, selection wherein any one spare power automatic switching system device are made
For prepared auto restart central station equipment, each spare power automatic switching system device is provided with analog acquisition interface, intake acquisition interface and outputed
Measure output interface；
Double mother partitions are connected to a spare power automatic switching system device with each statements based on collusion station under bypass connection composite power supply pattern；
The analog acquisition interface of the spare power automatic switching system device, for being responsible for the line voltage distribution and line current at corresponding statements based on collusion station
Analog acquisition, and busbar voltage is calculated according to collection capacity, and corresponding electrical quantity status signal is converted into, above deliver to prepared auto restart
Central station equipment；
The intake acquisition interface of the spare power automatic switching system device, for the electrical quantity status signal and switching value for being responsible for receiving
Signal, and fault location is carried out, it is automatic to judge wide area and prepared auto restart action priority, and being sent out by prepared auto restart central station equipment on the spot
Electrical control order is sent to corresponding backup auto-activating device；
The amount of the outputing output interface of the spare power automatic switching system device, for being responsible for receiving the electric of prepared auto restart central station equipment transmission
Control command, the electrical control to corresponding statements based on collusion station is completed, realizes power switching.
2. the adaptive region spare power automatic switching system under the pattern according to claim 1 based on composite power supply, it is characterised in that：
Power network under composite power supply pattern of the double mother partitions with bypass connection, including single double-bus power station, single independent electrical
Source station, multiple statements based on collusion stations, the multiple statements based on collusion station form ring connection, and the single independent electrical source station supplies for the statements based on collusion station of inner side
Electricity, under normal operation mode, open loop point is the block switch at both sides statements based on collusion station, and remaining statements based on collusion station is to close position；Improper fortune
Under row mode, single independent electrical source station is out of service, and statements based on collusion station forms annular formula wiring hand in hand, and the statements based on collusion station is single mother stock
Section statements based on collusion station.
3. the adaptive region spare power automatic switching system under the pattern according to claim 1 based on composite power supply, it is characterised in that：
The electrical quantity status signal of prepared auto restart central station equipment is delivered on the backup auto-activating device, including I is female and mother II has pressure passive state
Signal, No.1 inlet wire and No. two inlet wires have pressure passive state signal, No.1 inlet wire and No. two inlet wires to have stream without stream mode signal, enter
Line fault current status signal, inlet wire fault current direction status signal, inlet wire failure zero-sequence current status signal and inlet wire event
Hinder negative-sequence current status signal.
4. the adaptive region spare power automatic switching system under the pattern according to claim 1 based on composite power supply, it is characterised in that：
The electrical control order that the prepared auto restart central station equipment is sent, including on the spot prepared auto restart allow order, jumping circuit switch command and
Zygonema way switch order.
5. the adaptive region spare power automatic switching system under the pattern according to claim 1 based on composite power supply, it is characterised in that：
It is connected between N number of backup auto-activating device by single-mode fiber, and real-time data communication is carried out in a manner of GOOSE message.
6. the adaptive region spare power automatic switching system under the pattern according to claim 1 based on composite power supply, it is characterised in that：
The throwing of the prepared auto restart central station equipment is moved back to operate by the setting to control word and completed.
7. based on the adaptive region spare power automatic switching method under composite power supply pattern, it is characterised in that：For any one of claim 1-6
The described control method based on the adaptive region spare power automatic switching system under composite power supply pattern, including composite power supply power network are normal
Control model, composite power supply power network abnormal running control model are run, process is as follows,
Under composite power supply power network normal operation mode, the recharge logic of each backup auto-activating device is prepared auto restart recharge logic on the spot,
Each backup auto-activating device judges whether statements based on collusion station corresponding to its connection is in normal inlet wire or bridge for throwing pattern, if meeting wherein one
Kind pattern, then spare power automatic switching system input carries out prepared auto restart charging, and carry out the pattern simultaneously and charge to charging complete on the spot on the spot；
If each backup auto-activating device meets prepared auto restart electric discharge logical condition on the spot, on the spot the electric discharge of prepared auto restart input；
Under composite power supply power network abnormal running control model, the recharge logic of each backup auto-activating device is patrolled for the charging of wide area prepared auto restart
Volume, each backup auto-activating device judges that the annular that statements based on collusion station corresponding to its connection is formed is handed in hand in wiring, if an only statements based on collusion
The switch stood is in being divided to the switch at position while remaining statements based on collusion station all to have pressure, all closing position and two sections of main power supply station bus
Statements based on collusion station bus has pressure, in the absence of other discharging conditions, if above-mentioned condition meets simultaneously, controls each backup auto-activating device wide area standby
Haul oneself willingly into, and switch is in and divides bit string to carry out prepared auto restart, and carry out the pattern simultaneously on the spot for backup auto-activating device corresponding to station is standby
Charge to charging complete；If each backup auto-activating device meets wide area prepared auto restart electric discharge logical condition, the electric discharge of wide area prepared auto restart.
8. the adaptive region spare power automatic switching method under the pattern according to claim 7 based on composite power supply, it is characterised in that：
The electric discharge of the prepared auto restart on the spot logical condition, meets one of following condition, is specially
（1）Region spare power automatic switching system is not put into；（2）Backup circuit breaker is not at jumping position；（3）Service entrance switch is manually disconnected；（4）It is dynamic
Switch is refused to jump or refuses to close during work；（5）Prepared auto restart acts successfully on the spot.
9. the adaptive region spare power automatic switching method under the pattern according to claim 7 based on composite power supply, it is characterised in that：
The wide area prepared auto restart electric discharge logical condition, meets one of following condition, is specially
（1）Region spare power automatic switching system is not put into；（2）Open loop point switch closes position；（3）Backup auto-activating device where open loop point receives different
Often；（4）Communication abnormality when main website receives any backup auto-activating device information；（5）Two sections of main power supply station bus is without pressure；（6）It is any
The position of the switch is abnormal；（7）Any statements based on collusion switch is by artificial tripping；（8）Statements based on collusion switch is refused to jump；（9）Certain circuit at statements based on collusion station throws inspection
Repair；（10）Open loop point both sides failure；（11）Power station bus-bar fault where open loop point；（12）Open loop point offside power station bus-bar fault；
（13）Line fault where open loop point；（14）Circuit offside switch jump where open loop point；（15）It is unconfirmed after system acting；
（16）Wide area prepared auto restart feed motion.
10. the adaptive region spare power automatic switching method under the pattern according to claim 7 based on composite power supply, its feature exist
In：After charging complete, each backup auto-activating device judges operational mode automatically, if meeting following condition for the moment：（1）Non- open loop point
Switch jumps position without stream；（2）Power station bus is without pressure and outlet is without stream；（3）There is bus bar differential prptection operation；（4）There is circuit optical fiber longitudinal differential
Protection act；（5）Statements based on collusion station where open loop point or its offside statements based on collusion station are without pressure and inlet wire without stream, then region spare power automatic switching system opens
It is dynamic, fault location is carried out, after waiting tripping operation delay, performs the trip signal of isolated fault, when confirming close to trouble point dead electricity station
Former main power supply station switch jump position, circuit without stream and bus without pressure after, the line switching of former open loop point is closed, by opposite side
The power supply stood of being acted in collusion to make each other's confessions to dead electricity is recovered in independent electrical source station, realizes power switching.
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