CN106208351B - Region spare power automatic switching system connection cuts the method and system of small power supply - Google Patents
Region spare power automatic switching system connection cuts the method and system of small power supply Download PDFInfo
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- CN106208351B CN106208351B CN201610662562.1A CN201610662562A CN106208351B CN 106208351 B CN106208351 B CN 106208351B CN 201610662562 A CN201610662562 A CN 201610662562A CN 106208351 B CN106208351 B CN 106208351B
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- 230000006837 decompression Effects 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 12
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Classifications
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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
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- H02J13/0017—
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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
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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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
-
- 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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or 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
- 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
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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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
- Y04S20/248—UPS systems or standby or emergency generators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to the method and system that a kind of region spare power automatic switching system connection cuts small power supply, mode includes：The related operation information of our station circuit is obtained respectively in each station domain key-course of chain structure power grid, voltage value determines the position of the trouble point and small power supply of the chain structure power grid after position of the switch contact information and switching of the region key-course based on each related operation information received and the our station circuit of acquisition, and it whether there is small power supply in the plant stand between the open loop point of trouble point and chain structure power grid according to the position judgment of identified small power supply, if in the presence of excision small power supply instruction is sent from region key-course to Target Station domain key-course；In Target Station domain key-course in response to the excision small power supply instruction, the excision operation of the small power supply of our station is carried out.Using the present invention program, can after the system failure, when isolated power grid do not meet no press strip part before actively cut off small power supply, the power supply of fast quick-recovery decompression range improves power supply reliability.
Description
Technical field
The present invention relates to technical field of electric power, more particularly to a kind of region spare power automatic switching system connection cuts the method for small power supply and is
System.
Background technology
There are many chain structure power grids in 220kV or 110kV power grids, and tactic pattern is both ends power supply, chain type knot
Open loop operation among structure, normally when mains side main transformer, busbar or line fault trip, it is possible to multiple power transformation whole stations be caused to be lost
Pressure, causes large-area power-cuts.The load of open loop point plant stand can only be saved by conventional prepared auto restart on the spot, in order to avoid such event
Generation, before primary system rack does not improve, at present many places consider in the power grid of chain structure installation area it is standby from
It throws, reduces region and the time of fault outage to a certain extent, improve customer power supply reliability.But for there are small power supplies
In chain structure power grid, if no press strip part need to be met according to conventional prepared auto restart logic (i.e. voltage, which is less than, sentences element without pressure definite value)
Afterwards just start isolated fault and excision small power supply, then after the system failure between trouble point and open loop point plant stand in region prepared auto restart
Action will isolated power grid before closing open loop point.If isolated network Small Power capacity is sufficiently large, trouble point and open loop point it
Between plant stand busbar voltage will be unsatisfactory for no press strip part, do not have operation condition so as to region prepared auto restart, it is also possible to which there are small power supplies
Support prepared auto restart ability satisfaction action in automatic parallel off region after a period of time without press strip part, during isolated power grid system frequency,
The fluctuation of voltage seriously affects power supply reliability.Therefore how to cut off small power supply as early as possible in the system failure makes region prepared auto restart fast
Speed, which meets operation condition and restores electricity, to be a problem to be solved.
Invention content
The purpose of the present invention is to provide the method and systems that a kind of region spare power automatic switching system connection cuts small power supply, can be
After failure of uniting, when isolated power grid do not meet no press strip part before actively cut off small power supply, the power supply of fast quick-recovery decompression range improves
Power supply reliability.
The purpose of the present invention is achieved through the following technical solutions：
A kind of method that region spare power automatic switching system connection cuts small power supply, including：
The related operation information of our station circuit is obtained respectively in each station domain key-course of chain structure power grid, wherein, each institute
State voltage after the related operation information that station domain key-course obtains respectively includes the position of the switch contact information of corresponding line and switches
It is worth, the related operation information that the station domain key-course at the plant stand in the chain structure power grid obtains further includes small power supply information,
The small power supply information refer in corresponding plant stand whether the information containing small power supply；
Corresponding related operation information is sent to the region of the chain structure power grid from each station domain key-course respectively
Key-course；
The region key-course receive each related operation information and obtain our station circuit position of the switch contact information and
Voltage value after switching, topological structure, each position of the switch contact information with reference to the chain structure power grid and each described cuts
Change the trouble point that rear voltage value determines the chain structure power grid；
The position of small power supply is determined according to each small power supply information and the topological structure in the region key-course,
According in the plant stand between the open loop point of trouble point and chain structure power grid described in the position judgment of identified small power supply whether
There are small power supplies, obtain the first judging result；
Show in plant stand between the trouble point and open loop point there are during small power supply in first judging result,
Excision small power supply instruction is sent from region key-course to Target Station domain key-course；
In Target Station domain key-course in response to the excision small power supply instruction, the excision behaviour of the small power supply of our station is carried out
Make.
The system that a kind of region spare power automatic switching system connection cuts small power supply, the operation information including being configured in region key-course receive
Unit, the first operation information acquiring unit, trouble point identifying unit, small power supply identifying unit and instruction sending unit, further include
The second operation information acquiring unit, operation information transmitting element, instruction reception unit and the excision in each station domain key-course is configured
Unit；
Each second operation information acquiring unit is respectively used to obtain the related operation information of our station circuit, and each described the
The related operation information that two operation information acquiring units obtain respectively includes position of the switch contact information and the switching of corresponding line
Voltage value afterwards, the phase that the operation information receiving unit of the station domain key-course configuration at the plant stand in the chain structure power grid obtains
Close operation information and further include small power supply information, the small power supply information refer in corresponding plant stand whether the information containing small power supply；
Each operation information transmitting element is respectively used to send corresponding related operation information to chain structure electricity
The region key-course of net；
The operation information receiving unit is used to receive each related operation information；
Electricity after the first operation information acquiring unit is used to obtain the position of the switch contact information of our station circuit and switches
Pressure value；
The trouble point identifying unit is used for the topological structure with reference to the chain structure power grid, each position of the switch connects
Voltage value determines the trouble point of the chain structure power grid after point information and each switching；
The small power supply identifying unit is used to determine small power supply according to each small power supply information and the topological structure
Position, according to the plant stand between the open loop point of trouble point and chain structure power grid described in the position judgment of identified small power supply
It is interior to whether there is small power supply, obtain the first judging result；
Described instruction transmitting element is used to show between the trouble point and open loop point in first judging result
Plant stand in there are during small power supply, send excision small power supply instruction to Target Station domain key-course；
The instruction reception unit of Target Station domain key-course instructs for receiving the excision small power supply；
The excision unit of Target Station domain key-course is used to carry out the excision operation of the small power supply of our station.
It is to obtain our station circuit respectively in each station domain key-course of chain structure power grid according to the scheme of the invention described above
Related operation information；Corresponding related operation information is sent to the chain structure power grid from each station domain key-course respectively
Region key-course；Each related operation information is received in the region key-course and obtains the position of the switch contact letter of our station circuit
Voltage value after breath and switching, topological structure, each position of the switch contact information and each institute with reference to the chain structure power grid
State the trouble point that voltage value after switching determines the chain structure power grid；Believed in the region key-course according to each small power supply
Breath and the topological structure determine the position of small power supply, according to trouble point and chain described in the position judgment of identified small power supply
With the presence or absence of small power supply in plant stand between the open loop point of formula structure power grid, the first judging result is obtained；Judge described first
The result shows that there are during small power supply in plant stand between the trouble point and open loop point, from region key-course to Target Station domain
Key-course sends excision small power supply instruction；In Target Station domain key-course in response to the excision small power supply instruction, this is carried out
The excision operation for the small power supply stood；In this way, technical solution provided by the invention, by then passing through each of each station domain key-course upload
Related operation information first judges the trouble point of chain structure electric network composition, then based in the plant stand between trouble point and open loop point
The small power supply for needing to cut off is searched with the presence or absence of small power supply, the small power supply for needing to cut off can be found accurately, and cut finding needs accurately
Excision small power supply instruction is sent after the small power supply removed from region key-course to Target Station domain key-course, is controlled in the Target Station domain
In response to the excision small power supply instruction, the excision for carrying out the small power supply of our station operates layer, can be after the system failure, isolated network fortune
Small power supply is actively cut off before not meeting no press strip part during row, the power supply of fast quick-recovery decompression range provides power supply reliability.
Description of the drawings
Fig. 1 is the realization flow diagram that the region spare power automatic switching system connection of the embodiment of the present invention one cuts the method for small power supply
One；
Fig. 2 is the structure diagram of chain structure power grid；
Fig. 3 is the realization flow diagram that the region spare power automatic switching system connection of the embodiment of the present invention one cuts the method for small power supply
Two；
Fig. 4 is the composition structure diagram that the region spare power automatic switching system connection of the embodiment of the present invention two cuts the system of small power supply.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawings and embodiments, to this
Invention is described in further detail.It should be appreciated that the specific embodiments described herein are only used to explain the present invention,
Do not limit protection scope of the present invention.
Embodiment one
The embodiment of the present invention one provides a kind of method that region spare power automatic switching system connection cuts small power supply.It is shown in Figure 1, for this
The region spare power automatic switching system connection of inventive embodiments one cuts the realization flow diagram of the method for small power supply.As shown in Figure 1, this implementation
The method that the region spare power automatic switching system connection of example cuts small power supply includes the following steps：
Step 101：The related operation information of our station circuit is obtained respectively in each station domain key-course of chain structure power grid；
Wherein, the related operation information that each station domain key-course obtains respectively includes the position of the switch contact of corresponding line
Voltage value after information and switching, the related operation information that the station domain key-course at the plant stand in the chain structure power grid obtains is also
Including small power supply information, the small power supply information refer in corresponding plant stand whether the information containing small power supply.
Here, the chain structure power grid is as shown in Fig. 2, tactic pattern is both ends power supply, open loop is transported among chain structure
Row.
Generally, region spare power automatic switching system is divided into region key-course and station domain key-course；Region key-course and the control of station domain
Divided between layer by SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) communication network 2M channels
Layer, distributed connection.Wherein, region key-course is typically chosen in one of end power supply in two end power supplys, specifically, can be with
Region key-course is selected the power supply in an end power supply, such as Fig. 2 of high importance by the importance based on two end power supplys
1, domain key-course of standing is arranged at each plant stand on chain structure power grid and other end power supply.
Station domain key-course at end power supply in the chain structure power grid needs the position of the switch for obtaining our station circuit to connect
Put information operation information related to the grade of voltage value after switching；Station domain key-course at plant stand in the chain structure power grid needs
Voltage value after obtaining the position of the switch contact information of our station circuit and switching, it is also necessary to obtain in our station whether contain small power supply
Information.Wherein, position of the switch contact information refer to corresponding line switching by open position be switched to close position information or by close position
It is switched to information of the information of open position either in the information for closing position or in open position.
Step 102：Corresponding related operation information is sent to chain structure electricity from each station domain key-course respectively
The region key-course of net；
Specifically, SDH communication network 2M channels may be used and send corresponding related fortune from each station domain key-course respectively
Row information, using SDH communication network 2M channels, can ensure to the region key-course of the chain structure power grid on traffic rate
Region key-course obtains the related operation information of entire chain structure power grid in real time.
Step 103：It is connect in the position of the switch that the region key-course receives each related operation information and obtains our station circuit
Voltage value after point information and switching, topological structure, each position of the switch contact information with reference to the chain structure power grid and
Voltage value determines the trouble point of the chain structure power grid after each switching；
Here, the position of the switch that each position of the switch contact information is both included in each related operation information received connects
Point information, the position of the switch contact information of the line switching also including the our station acquired in the region key-course are each described to cut
Change rear voltage value similarly.
Specifically, it receives each related operation information in the region key-course and obtains the position of the switch contact of our station circuit
After information and switching after voltage value, if network system failure, with reference to the chain structure power grid topological structure, it is each described in open
Voltage value determines the trouble point of the chain structure power grid after off position contact information and each switching.
Topological structure with reference to the chain structure power grid, each position of the switch contact in one of the embodiments,
Voltage value determines that the trouble point of the chain structure power grid can include after information and each switching：Based on each switch position
It puts voltage value after contact information and each switching and is searched in the topological structure and meet preset first criterion and second and sentence
According to location point, the location point found is determined as the trouble point；Wherein, first criterion refers to the chain structure electricity
The working line either side of any line section of net occurs switch and becomes point position and without stream from closing position；The Second Criterion refers to event
All circuits of barrier point to open loop point are satisfied by voltage and sentence element less than preset and have pressure definite value.
Specifically, can the first criterion be judged whether it is satisfied based on each position of the switch contact information, based on each institute
Voltage value judges Second Criterion whether it is satisfied after stating switching., it is described sentence element have pressure definite value can choose according to actual needs,
Sentence element preferably, described and there is pressure definite value to take the 70%-85% of rated voltage, this sentence element have pressure definite value far above sentence element without
Press definite value.
Step 104：Small electricity is determined according to each small power supply information and the topological structure in the region key-course
The position in source, according to the factory between the open loop point of trouble point and chain structure power grid described in the position judgment of identified small power supply
With the presence or absence of small power supply in standing, the first judging result is obtained；
Specifically, the failure is determined according to the topological structure of the chain structure power grid in the region key-course first
Plant stand between point and the open loop point of chain structure power grid is judged further according to each small power supply information in determined plant stand
With the presence or absence of small power supply, the first judging result is obtained.
Step 105：Show exist in the plant stand between the trouble point and open loop point in first judging result
During small power supply, excision small power supply instruction is sent from region key-course to Target Station domain key-course；
Here, Target Station domain key-course refers between the trouble point and open loop point that there are the stations at the plant stand of small power supply
Domain key-course；
Specifically, it may be used and controlled respectively to Target Station domain from region key-course using the SDH communication networks 2M channels
Layer sends excision small power supply instruction, using SDH communication network 2M channels, can ensure to cause to become in electric network fault on traffic rate
During the decompression of power station, region spare power automatic switching system can quick acting restore electricity.
Step 106：In Target Station domain key-course in response to the excision small power supply instruction, our station (Target Station is carried out
The corresponding plant stand of domain key-course) small power supply excision operation.
Specifically, in order to further determine that small power supply whether in the range of decompression, to prevent open loop point from being opened in mother
When at pass, open loop point station small power supply is accidentally cut not in the range of decompression, in one of the embodiments, as shown in figure 3, it is described
In response to the excision small power supply instruction, carrying out the excision operation of the small power supply of our station can wrap Target Station domain key-course
It includes：In Target Station domain key-course in response to the excision small power supply instruction, judge that the voltage of the small power supply of our station is sentenced with preset
Element has the magnitude relationship between pressure definite value, obtains the second judging result；When the second judging result shows the small power supply of our station
Voltage be less than it is described when sentencing element and having pressure definite value, then in the small power supply of Target Station domain key-course excision our station.Here sentence element
There is the 70%-85% that pressure definite value can take rated voltage.
Accordingly, according to the scheme of above-mentioned the present embodiment, our station is obtained respectively in each station domain key-course of chain structure power grid
The related operation information of circuit；Corresponding related operation information is sent to the chain structure from each station domain key-course respectively
The region key-course of power grid；It is connect in the position of the switch that the region key-course receives each related operation information and obtains our station circuit
Voltage value after point information and switching, topological structure, each position of the switch contact information with reference to the chain structure power grid and
Voltage value determines the trouble point of the chain structure power grid after each switching；In the region key-course according to each small electricity
Source information and the topological structure determine the position of small power supply, according to trouble point described in the position judgment of identified small power supply
With the presence or absence of small power supply in plant stand between the open loop point of chain structure power grid, the first judging result is obtained；Described first
Judging result shows in plant stand between the trouble point and open loop point there are during small power supply, from region key-course to target
Domain key-course of standing sends excision small power supply instruction；It is instructed in Target Station domain key-course in response to the excision small power supply, into
The excision operation of the small power supply of row our station；In this way, technical solution provided by the invention, is uploaded by then passing through each station domain key-course
Each related operation information first judge the trouble point of chain structure electric network composition, then based on the factory between trouble point and open loop point
The small power supply for needing to cut off is searched with the presence or absence of small power supply in standing, the small power supply for needing to cut off can be found accurately, and need finding accurately
Excision small power supply instruction is sent after the small power supply to be cut off from region key-course to Target Station domain key-course, in the Target Station domain
In response to the excision small power supply instruction, the excision for carrying out the small power supply of our station operates key-course, can be lonely after the system failure
Small power supply is actively cut off before not meeting no press strip part during network operation, the power supply of fast quick-recovery decompression range provides power supply reliability.
The present invention program is illustrated by taking chain type electric network composition shown in Fig. 2 as an example below.Chain type knot in fig. 2
Structure power grid be in each section be double loop, open loop point at the bus connection switch at 220kV stations 2,220kV stands 2 busbares point row
For operation, but this does not form the restriction to the present invention program.
The control station selection of region key-course is in the one of end power supply (power supply 1 in such as Fig. 2) of both ends power supply, basis
The phases such as voltage value and small power supply information after the position of the switch contact information of line switching that is sent in each plant stand of domain key-course of standing, switching
Operation information is closed, comprehensive analysis and judgement determine to cut off the plant stand of small power supply, and issue excision order.
Domain key-course of standing is arranged on each plant stand and other end power supply (power supply 2 in such as Fig. 2) on chain structure power grid, main
If acquiring the operation informations such as voltage after line switching and switching, small power supply excision order is received in combination with small power supply voltage feelings
Condition judgement our station needs the small power supply cut off and performs excision.
Specifically, the processing procedure of region key-course is：Region key-course at power supply 1 receives to be sent on each station domain key-course
Chain type power grid in the position of the switch contact information of each circuit whether contain with voltage value and 220kV plant stands 1~3 after switching
There is the information of small power supply；The position of the switch contact information and voltage after switching for acquiring our station circuit simultaneously.After the system failure, cut
Except the processing of small power supply mainly divides following steps：
(1) according to the topological structure of chain type power grid and 220kV plant stands 1~3, whether the information containing small power supply determines chain type
The position of small power supply on power grid.
(2) after the system failure, confirm that plant stand whether there is small power supply between trouble point and open loop point.
(3) issue an order if plant stand between trouble point and open loop point is there are small power supply and cut off small power supply.
Its criterion is as follows：
The working line either side of any line section of chain type power grid occurs switch and becomes point position and without stream from closing position, quickly
Determine trouble point；
All circuits of trouble point to open loop point be satisfied by voltage be less than sentence element have pressure definite value (sentence element have pressure definite value number
Value be generally 70%-85% rated voltages, far above sentence element without pressure definite value).
Two above condition is satisfied by confirmed delay, the plant stand hair excision containing small power supply between trouble point and open loop point
The order of small power supply.(when if open loop point is at bus connection switch, open loop point station also belongs to the factory between trouble point and open loop point
It stands).
Specifically, the processing procedure of domain key-course of standing is：The station domain of 220kV plant stands 1~3 and power supply 2 is controlled on chain type power grid
Preparative layer send in chain type power grid each line switching position and voltage after switching on the key-course of region and is determined according to small power supply parameter
Value differentiate our station whether have small power supply and on give region key-course.When the order for receiving region key-course excision small power supply
When, sentence element with reference to whether the voltage for judging our station small power supply is less than and have pressure definite value, further determine that small power supply whether in decompression
In the range of (when preventing open loop point at bus connection switch, open loop point station small power supply is accidentally cut not in the range of decompression), if small electricity
Source voltage be less than sentence element have pressure definite value then issue an order cut off the small power supply, otherwise retain small power supply, i.e. small power supply is not removed.
Embodiment two
The method that region spare power automatic switching system connection in above-described embodiment cuts small power supply, the present invention also provides a kind of regions
The system that spare power automatic switching system connection cuts small power supply.Fig. 4 be the region spare power automatic switching system connection of the embodiment of the present invention two cut small power supply be
The composition structure diagram of system.The system that the region spare power automatic switching system connection of the embodiment of the present invention two cuts small power supply is shown in Fig. 4
One preferably composition structure diagram.According to it is different the considerations of factor, specific implementation the present invention region prepared auto restart system
When system connection cuts the system of small power supply, the whole shown in Fig. 4 can be included, it can also be only comprising wherein one shown in Fig. 4
Point, the specific embodiment of system for cutting small power supply for several region spare power automatic switching system connection therein is carried out specifically below
It is bright.
The system that region spare power automatic switching system connection of the invention cuts small power supply in one of the embodiments, exists including configuration
The operation information receiving unit 401 of region key-course 301, the first operation information acquiring unit 402, trouble point identifying unit 403,
Small power supply identifying unit 404 and instruction sending unit 405 further include second operation information of the configuration in each station domain key-course 302
Acquiring unit 406, operation information transmitting element 407, instruction reception unit 408 and excision unit 410.In Fig. 4 only schematically
Ground depict one station domain key-course 302, but stand domain key-course 302 quantity generally comprise it is multiple.
Each second operation information, 406 acquiring unit is respectively used to obtain the related operation information of our station circuit, and each described the
The related operation information that two operation information acquiring units obtain respectively includes position of the switch contact information and the switching of corresponding line
Voltage value afterwards, the phase that the operation information receiving unit of the station domain key-course configuration at the plant stand in the chain structure power grid obtains
Close operation information and further include small power supply information, the small power supply information refer in corresponding plant stand whether the information containing small power supply；
Each operation information transmitting element 407 is respectively used to send corresponding related operation information to the chain structure power grid
Region key-course；
Operation information receiving unit 401 is used to receive each related operation information；
Voltage after first operation information acquiring unit 402 is used to obtain the position of the switch contact information of our station circuit and switches
Value；
Trouble point identifying unit 403 is used for the topological structure with reference to the chain structure power grid, each position of the switch connects
Voltage value determines the trouble point of the chain structure power grid after point information and each switching；
Small power supply identifying unit 404 is used to determine small power supply according to each small power supply information and the topological structure
Position, according in the plant stand between the open loop point of trouble point and chain structure power grid described in the position judgment of identified small power supply
With the presence or absence of small power supply, the first judging result is obtained；
Instruction sending unit 405 is used to show between the trouble point and open loop point in first judging result
There are during small power supply in plant stand, excision small power supply instruction is sent to Target Station domain key-course；
The instruction reception unit 408 of Target Station domain key-course instructs for receiving the excision small power supply；
The excision unit 410 of Target Station domain key-course is used to carry out the excision operation of the small power supply of our station.
Trouble point identifying unit 403 is based on each position of the switch contact information and each institute in one of the embodiments,
Voltage value searches the location point for meeting preset first criterion and Second Criterion in the topological structure after stating switching, will search
To location point be determined as the trouble point；Wherein, first criterion refers to any line section of the chain structure power grid
Working line either side occur switch from close position become point position and without stream；The Second Criterion refers to trouble point to the institute of open loop point
There is circuit to be satisfied by voltage and be less than preset sentencing element and having pressure definite value.
The 70%-85% for sentencing element and thering is pressure definite value to take rated voltage in one of the embodiments,.
In one of the embodiments, as shown in figure 4, each station domain key-course can also respectively include decompression detection list
Member 409；
The decompression detection unit 409 of Target Station domain key-course judges our station in response to the excision small power supply instruction
Small power supply voltage and it is preset sentence element have pressure definite value between magnitude relationship, obtain the second judging result；
The excision unit 410 of Target Station domain key-course shows the electricity of the small power supply of our station when second judging result
Pressure is less than described when sentencing element and having pressure definite value, cuts off the small power supply of the our station.
The transmission pair of SDH communication network 2M channels is respectively adopted in each operation information transmitting element 407 in one of the embodiments,
The related operation information answered is to the region key-course of the chain structure power grid, and instruction sending unit 405 is using SDH communications
It nets 2M channels and sends excision small power supply instruction to Target Station domain key-course.
The system that spare power automatic switching system connection in region provided in an embodiment of the present invention cuts small power supply, it is pointed out that：It is right above
The description of the system of small power supply is cut in region spare power automatic switching system connection, the method for small power supply is cut with above-mentioned zone spare power automatic switching system connection
Description is similar, and joins the advantageous effect for the method for cutting small power supply with above-mentioned zone spare power automatic switching system, to save length,
It repeats no more；Therefore, region spare power automatic switching system provided in an embodiment of the present invention connection is cut in the system of small power supply more than and is not disclosed
Technical detail, please refer to above-mentioned offer region spare power automatic switching system connection cut small power supply method description.
Those of ordinary skill in the art are it should be appreciated that above-mentioned " our station " can be represented according to the difference for performing object
Different plant stands and end power supply, for example, after the region key-course obtains position of the switch contact information and the switching of our station circuit
" our station " in voltage value refers to the end power supply of setting area key-course；And domain key-course of respectively standing obtains the correlation of our station circuit respectively
" our station " in operation information refers to the plant stand of setting station domain key-course or end power supply.
It will appreciated by the skilled person that realizing all or part of flow in above-described embodiment method, being can
It is completed with instructing relevant hardware by computer program, the program can be stored in a computer-readable storage and be situated between
In matter, it is independent product sale or uses.Described program when being executed, can perform the complete of such as embodiment of above-mentioned each method
Portion or part steps.Wherein, the storage medium can be magnetic disc, CD, read-only memory (Read-Only
Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
If alternatively, the above-mentioned integrated unit of the present invention is realized in the form of SFU software functional unit and is independent product
Sale in use, can also be stored in a computer read/write memory medium.Based on such understanding, the present invention is implemented
The technical solution of example substantially in other words can be embodied the part that the prior art contributes in the form of software product,
The computer software product is stored in a storage medium, and being used including some instructions (can be with so that computer equipment
It is personal computer, server or network equipment etc.) perform all or part of each embodiment the method for the present invention.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.In several embodiments provided herein, it should be understood that taken off
The method and system of dew can be realized by another way.Apparatus embodiments described above are only schematical, example
Such as, the division of the unit, only a kind of division of logic function, can have other dividing mode, such as in actual implementation：It is more
A unit or component can combine or be desirably integrated into another system or some features can be ignored or does not perform.In addition,
The mutual coupling of shown or discussed each component part or direct-coupling or communication connection can be connect by some
Mouthful, the INDIRECT COUPLING or communication connection of equipment or unit can be electrical, mechanical or other forms.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing unit, also may be used
To be each unit individually as a unit, can also two or more units integrate in a unit；It is above-mentioned
The form that hardware had both may be used in integrated unit is realized, can also be realized in the form of hardware adds SFU software functional unit.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of method that region spare power automatic switching system connection cuts small power supply, which is characterized in that including：
The related operation information of our station circuit is obtained respectively in each station domain key-course of chain structure power grid, wherein, each station
Voltage value after the related operation information that domain key-course obtains respectively includes the position of the switch contact information of corresponding line and switches, institute
It states the related operation information that the station domain key-course at the plant stand in chain structure power grid obtains and further includes small power supply information, it is described small
Power information refer in corresponding plant stand whether the information containing small power supply；
Corresponding related operation information to the region of the chain structure power grid is sent from each station domain key-course respectively to control
Layer；
Each related operation information is received in the region key-course and obtains position of the switch contact information and the switching of our station circuit
Voltage value afterwards, after the topological structure, each position of the switch contact information and each switching with reference to the chain structure power grid
Voltage value determines the trouble point of the chain structure power grid；
The position of small power supply is determined according to each small power supply information and the topological structure in the region key-course, according to
It whether there is in plant stand between the open loop point of trouble point and chain structure power grid described in the position judgment of identified small power supply
Small power supply obtains the first judging result；
Show in plant stand between the trouble point and open loop point there are during small power supply in first judging result, from area
Domain key-course sends excision small power supply instruction to Target Station domain key-course；
In Target Station domain key-course in response to the excision small power supply instruction, the excision operation of the small power supply of our station is carried out；
Wherein, it the topological structure of the chain structure power grid with reference to described in, each position of the switch contact information and each described cuts
It changes rear voltage value and determines that the trouble point of chain structure power grid includes：
It is pre- that satisfaction is searched in the topological structure based on voltage value after each position of the switch contact information and each switching
If the first criterion and Second Criterion location point, the location point found is determined as the trouble point；
Wherein, first criterion refers to the working line either side of any line section of the chain structure power grid and switchs
Become point position and without stream from closing position；All circuits that the Second Criterion refers to trouble point to open loop point are satisfied by voltage less than default
Element of sentencing have a pressure definite value, the 70%-85% for sentencing element and thering is pressure definite value to take rated voltage.
2. the method that spare power automatic switching system connection in region according to claim 1 cuts small power supply, which is characterized in that described in target
Domain key-course stand in response to the excision small power supply instruction, the excision operation for carrying out the small power supply of our station includes：
In Target Station domain key-course in response to the excision small power supply instruction, judge that the voltage of the small power supply of our station is sentenced with preset
Element has the magnitude relationship between pressure definite value, obtains the second judging result；
When the second judging result show the voltage of the small power supply of our station be less than it is described sentence element and have pressure definite value when, then in Target Station domain
Key-course cuts off the small power supply of our station.
3. the method that spare power automatic switching system connection in region according to claim 2 cuts small power supply, which is characterized in that led to using SDH
Letter net 2M channels send corresponding related operation information to the area of the chain structure power grid from each station domain key-course respectively
Domain key-course using the SDH communication networks 2M channels is sent from region key-course to Target Station domain key-course and cuts off small electricity respectively
Sourse instruction.
4. the system that a kind of region spare power automatic switching system connection cuts small power supply, which is characterized in that including the fortune in region key-course is configured
Row information receiving unit, the first operation information acquiring unit, trouble point identifying unit, small power supply identifying unit and instruction send single
Member further includes configuration in the second operation information acquiring unit of each station domain key-course, operation information transmitting element, command reception list
Member and excision unit；
Each second operation information acquiring unit is respectively used to obtain the related operation information of our station circuit, each second fortune
Electricity after the related operation information that row information acquiring unit obtains respectively includes the position of the switch contact information of corresponding line and switches
Pressure value, the related operation letter that the operation information receiving unit of the station domain key-course configuration at the plant stand in chain structure power grid obtains
Breath further includes small power supply information, the small power supply information refer in corresponding plant stand whether the information containing small power supply；
Each operation information transmitting element is respectively used to send corresponding related operation information to the chain structure power grid
Region key-course；
The operation information receiving unit is used to receive each related operation information；
Voltage value after the first operation information acquiring unit is used to obtain the position of the switch contact information of our station circuit and switches；
The trouble point identifying unit is used for based on voltage value after each position of the switch contact information and each switching in institute
The location point searched in topological structure and meet preset first criterion and Second Criterion is stated, the location point found is determined as institute
State trouble point；Wherein, first criterion refers to the working line either side hair of any line section of the chain structure power grid
Raw switch becomes point position and without stream from closing position；It is small that all circuits that the Second Criterion refers to trouble point to open loop point are satisfied by voltage
Sentence element in preset and have a pressure definite value, the 70%-85% for sentencing element and thering is pressure definite value to take rated voltage；
The small power supply identifying unit is used to determine the position of small power supply according to each small power supply information and the topological structure
It puts, according to being in the plant stand between the open loop point of trouble point and chain structure power grid described in the position judgment of identified small power supply
No there are small power supplies, obtain the first judging result；
Described instruction transmitting element is used to show the factory between the trouble point and open loop point in first judging result
There are during small power supply in standing, excision small power supply instruction is sent to Target Station domain key-course；
The instruction reception unit of Target Station domain key-course instructs for receiving the excision small power supply；
The excision unit of Target Station domain key-course is used to carry out the excision operation of the small power supply of our station.
5. the system that spare power automatic switching system connection in region according to claim 4 cuts small power supply, which is characterized in that each station domain
Key-course respectively further comprises decompression detection unit；
The decompression detection unit of Target Station domain key-course judges the small power supply of our station in response to the excision small power supply instruction
Voltage and it is preset sentence element have pressure definite value between magnitude relationship, obtain the second judging result；
The excision unit of Target Station domain key-course shows that the voltage of the small power supply of our station is less than when second judging result
It is described when sentencing element and having pressure definite value, cut off the small power supply of the our station.
6. the system that spare power automatic switching system connection in region according to claim 5 cuts small power supply, which is characterized in that each operation
Information transmitting unit is respectively adopted SDH communication network 2M channels and sends corresponding related operation information to the chain structure power grid
Region key-course, described instruction transmitting element are small to the transmission excision of Target Station domain key-course using the SDH communication networks 2M channels
Power command.
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| CN107612021B (en) * | 2017-08-30 | 2020-04-10 | 云南电网有限责任公司临沧供电局 | Regional spare power automatic switching control method suitable for large number of small power supplies to access local power grid |
| CN109274077A (en) * | 2018-09-28 | 2019-01-25 | 云南电网有限责任公司红河供电局 | Power loss self-recovery method and system between station based on fiber optic communication |
| CN111834988B (en) * | 2020-06-22 | 2022-09-09 | 南京国电南自电网自动化有限公司 | Method for switching small power supply in area spare power automatic switching connection mode |
| CN114465214B (en) * | 2022-03-17 | 2024-05-14 | 国网浙江省电力有限公司宁波供电公司 | Fault disconnection configuration method based on 5G communication technology |
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Effective date of registration: 20200923 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |