CN107819360A - Bus control loop, device and system - Google Patents
Bus control loop, device and system Download PDFInfo
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- CN107819360A CN107819360A CN201711174182.4A CN201711174182A CN107819360A CN 107819360 A CN107819360 A CN 107819360A CN 201711174182 A CN201711174182 A CN 201711174182A CN 107819360 A CN107819360 A CN 107819360A
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- bus
- bus control
- disconnecting switch
- module
- control loop
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- 238000004891 communication Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 11
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- 239000000203 mixture Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
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- 230000000903 blocking effect Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- H02J13/0075—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/22—Layouts for duplicate bus-bar selection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- 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
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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
- Y04S20/248—UPS systems or standby or emergency generators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of bus control loop, device and system, wherein, bus control loop includes bus control power supply, the bus being connected between the first bus and the second bus, each interval disconnecting switch supplementary module being connected between the first bus and the second bus；Each interval disconnecting switch supplementary module is composed in series interval disconnecting switch auxiliary module；It is spaced the breaking coil output end of disconnecting switch auxiliary module one end connection bus, the negative pole of other end connection bus control power supply；The breaking coil input of the positive pole connection bus of bus control power supply.The present invention aids in module can adaptive break-make bus control loop by being spaced disconnecting switch, realize and the auto switching of bus control loop is controlled during grid switching operation, maloperation risk caused by manual control is avoided, improves the security performance of grid switching operation.
Description
Technical field
The present invention relates to power control technology field, more particularly to a kind of bus control loop, device and is
System.
Background technology
In power system, generally need to carry out grid switching operation when busbar overhaul or bus load transfer.
Back brake is by the circuit being connected on two sections of buses (the first bus and the second bus) or main transformer interval, is fallen by wherein one section of bus
The operation continued to run with to other one section of bus.Grid switching operation is the important operation flow in substation operation, while the back brake phase
Between the method for operation be also the most weak link of operation of power networks, if misoperation easily causes serious accident.
In order to reduce influence of the grid switching operation to power system, traditional technical scheme is being fallen by professional operator
Before lock operation, the break-make of bus is controlled manually.In implementation process, inventor has found at least exist such as in conventional art
Lower problem：Control the break-make of bus control loop manually by operating personnel, back brake behaviour can be increased to a certain extent
The time of work, and artificial maloperation is easily produced, reduce security performance of the power system during grid switching operation.
The content of the invention
Based on this, it is necessary to for traditional technical scheme during grid switching operation, what security performance cannot ensure
Problem, there is provided a kind of bus control loop, device and system.
To achieve these goals, on the one hand, the embodiments of the invention provide a kind of bus control loop, including
Bus control power supply, the bus being connected between the first bus and the second bus, be connected to the first bus and
Each interval disconnecting switch supplementary module between second bus；Each interval disconnecting switch supplementary module, which is composed in series interval, keeps apart
Close auxiliary module；
It is spaced the breaking coil output end of disconnecting switch auxiliary module one end connection bus, other end connection mother
The negative pole of breaker control power supply；The breaking coil input of the positive pole connection bus of bus control power supply.
In one of the embodiments, be spaced disconnecting switch supplementary module include the first bus isolating switch auxiliary circuit,
And the second bus isolating switch auxiliary circuit in parallel with the first bus isolating switch auxiliary circuit；
The breaking coil output of the normally closed node input connection bus of first bus isolating switch auxiliary circuit
End, the negative pole of normally closed node output end connection bus control power supply；
The breaking coil output of the normally closed node input connection bus of second bus isolating switch auxiliary circuit
End, the negative pole of normally closed node output end connection bus control power supply.
In one of the embodiments, it is spaced disconnecting switch supplementary module at least one.
In one of the embodiments, it is 110V or 220V that bus, which controls the supply voltage of power supply,.
On the other hand, the embodiment of the present invention additionally provides a kind of bus control device, including main control module, and
The above-mentioned bus control loop of any one；
The positive pole of main control module first interface connection bus control power supply, second interface connection bus control
The negative pole of power supply processed, the 3rd interface connect the breaking coil input of bus.
In one of the embodiments, the attention device of connection main control module is included.
In one of the embodiments, main control module includes single-chip microcomputer or industrial computer.
On the other hand, the embodiment of the present invention additionally provides a kind of bus control system, including monitor supervision platform, and
The above-mentioned bus control device of any one；The main control module communication link of monitor supervision platform and bus control device
Connect；
Bus control loop is according to the division state of interval disconnecting switch, and be turned on or off bus control
Loop；
The on off operating mode of bus control loop is transferred to monitor supervision platform by main control module, so that monitoring platform is to mother
The on off operating mode of connection breaker control circuit is monitored.
In one of the embodiments, monitor supervision platform includes processor, and the display of connection processor；
The on off operating mode for the bus control loop that processor transmits according to main control module, bus is controlled
The on off operating mode in loop is transferred to display；
Display is shown the on off operating mode of the bus control loop received.
In one of the embodiments, communicate to connect as wire communication connection or radio communication connection.
A technical scheme in above-mentioned technical proposal has the following advantages that and beneficial effect：
Bus control loop of the present invention, device and system, by being connected by each interval disconnecting switch supplementary module
Composition interval disconnecting switch auxiliary module connection bus, bus control power supply, form bus control
Loop.When the disconnecting switch twin spans for the spacing devices being connected between the first bus and the second bus, interval disconnecting switch is auxiliary
Module is helped to disconnect；When each disconnecting switch single span for the spacing devices being connected between the first bus and the second bus, be spaced every
Leave pass auxiliary module conducting.During so that carrying out grid switching operation to spacing devices, aid in module can be certainly by being spaced disconnecting switch
Break-make bus control loop is adapted to, realizes the auto switching control to bus control loop during grid switching operation
System, improve the automaticity of grid switching operation；By be spaced disconnecting switch aid in module to bus control loop from
Dynamic break-make control, it is not necessary to the break-make control of manual operation bus control loop, fallen so as to improve power system
Security performance in lock operating process.
Brief description of the drawings
Fig. 1 is bus control loop of the present invention, an application scenarios schematic diagram of device and system；
Fig. 2 is the structural representation of bus control loop embodiment 1 of the present invention；
Fig. 3 is the concrete structure schematic diagram of bus control loop embodiment of the present invention；
Fig. 4 is that the interval disconnecting switch of bus control loop embodiment of the present invention aids in modular structure schematic diagram；
Fig. 5 is the back brake twin spans operation element principle schematic of bus control loop embodiment of the present invention；
Fig. 6 is the back brake single span operation element principle schematic of bus control loop embodiment of the present invention.
Fig. 7 is that the interval disconnecting switch of bus control loop embodiment of the present invention aids in module to disconnect operation principle
Schematic diagram；
Fig. 8 is that the interval disconnecting switch of bus control loop embodiment of the present invention aids in operation principle in die combination
Schematic diagram；
Fig. 9 is the structural representation of bus control device embodiment 1 of the present invention；
Figure 10 is the concrete structure schematic diagram of bus control device embodiment of the present invention；
Figure 11 is the structural representation of bus control system embodiment 1 of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is made to the disclosure more thorough and comprehensive.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Fig. 1 is bus control loop of the present invention, the embodiment of a device and system wherein application scenarios schematic diagram,
Plurality of spacing devices are connected to double-bus, and (the first bus and the second bus, the first bus are I buses in Fig. 1, and second is female
Line is the II buses in Fig. 2), spacing devices can be outgoing line interval or main transformer interval, and each spacing devices may include to connect I
First disconnecting switch of bus and the second disconnecting switch of connection II buses；One end of bus can keep apart by first
Connection connects I buses, and the other end can connect II buses by the second disconnecting switch.In Fig. 1, outlet 1 is spaced can include first
Disconnecting switch DS11, the second disconnecting switch DS12 and interval breaker CB1；First disconnecting switch DS11 one end connection I buses,
Other end connection interval breaker CB1 incoming ends；Second disconnecting switch DS12 one end connects II buses, separates between other end connection
Road device CB1 incoming ends；Bus CB1 picks out the leading-out terminal that end connection outlet 1 is spaced；Bus CB-ML one end
By the first disconnecting switch DS-ML1 connection I buses, the other end passes through the second disconnecting switch DS-ML2 connection II buses.Wherein,
Spacing devices refer to the complete loops of the electric unit with perfect in shape and function in transformer station, it may include breaker, isolation
Switch, transformer and arrester etc..Spacing devices can be into and out line interval, mother interval or bus equipment interval etc..
During substation operation, occur when busbar overhaul or bus load need to be shifted, generally may be used
Electric power normal operation is ensured using grid switching operation, such as the circuit that will be connected in double-bus (the first bus and the second bus) or
Main transformer interval pours into other one section of bus by wherein one section of bus and ensures that electric power continues to run with.And the bus break-make is controlled to be
An important step during grid switching operation, traditional control bus switching schemes are grasped manually by staff
The break-make of bus control power supply is controlled, but due to being carried out at night more than grid switching operation, passes through the manually operated behaviour of staff
The break-make of bus control power supply is controlled, increases the risk of maloperation；And manually operated increase to a certain extent is fallen
Lock operating time, the risk that increase transformer station breaks down under abnormal running mode.
It should be noted that in grid switching operation, bus control power supply is typically first disconnected, is prevented due to mother
Breaker jump so that two busbar voltages are unequal, and the larger ring of drawing occurs in disconnecting switch during causing grid switching operation
Stream, causes on-load drawing disconnecting switch, causes accident.Breaker control power supply, restorer are closed after the completion of grid switching operation
System normal operation.Traditional technical scheme is manually to control the break-make of bus control power supply, causes grid switching operation
Overlong time, bus protection lose selectivity for a long time during grid switching operation, and increase transformer station is in abnormal running mode
Under the risk that breaks down.
And module is aided in connect bus, bus control by being spaced disconnecting switch in the embodiment of the present invention
Power supply, form bus control loop so that the spacing devices being connected between the first bus and the second bus are carried out
During grid switching operation, the adaptive break-make bus control loop of module can be aided in by being spaced disconnecting switch, so as to realize down
The auto switching of bus is controlled in lock operating process.
In order to solve traditional technical scheme during grid switching operation, the problem of security performance cannot ensure, this hair
It is bright to provide a kind of bus control loop embodiment 1；Fig. 2 is bus control loop embodiment 1 of the present invention
Structural representation.As shown in Figure 2, it may include bus controls power supply 10, is connected between the first bus and the second bus
Bus 20, each interval disconnecting switch supplementary module 32 being connected between the first bus and the second bus；Each interval
Disconnecting switch supplementary module 32 is composed in series interval disconnecting switch auxiliary module 30.
The breaking coil output end 24 of disconnecting switch auxiliary module 30 one end connection bus 20 is spaced, the other end connects
Connect the negative pole of bus control power supply 10；The tripping operation of the positive pole connection bus 20 of bus control power supply 10
Coil input end 22.
Wherein, bus 20 refers to the breaker of two bus electrical links arranged side by side, and bus 20 is conjunction
During lock state, bus paired running；When bus 20 is gate-dividing state, bus fanout operation.Wherein, bus 20
It may include breaking coil.Bus control power supply 10 can include the modules such as rectification, filtering, bus control power supply 10
Input connect the first bus or the second bus, output end connection bus 20；Bus controls power supply 10
It can be the independent control power supply for connecting civil power.Interval disconnecting switch supplementary module 32 refers to disconnecting switch in spacing devices
Supplementary module, interval disconnecting switch supplementary module 32 may include the first isolation of the bus of connection first in same interval equipment
Switch supplementary module, and the second disconnecting switch supplementary module of the second bus of connection.
Specifically, the breaking coil output end of disconnecting switch auxiliary module 30 one end connection bus 20 will be spaced
24, the negative pole of other end connection bus control power supply 10；The positive pole connection mother of bus control power supply 10 is broken
The breaking coil input 22 of road device 20, so as to form bus control loop.In the first isolation of same interval equipment
When switch and the second disconnecting switch are all closed a floodgate, the corresponding separating brake of interval disconnecting switch supplementary module 32, then it is auxiliary to be spaced disconnecting switch
Module 30 is helped to disconnect, and then bus control loop disconnects；It is corresponding to keep apart when being spaced disconnecting switch separating brake
Close supplementary module 32 to close a floodgate, be then spaced disconnecting switch auxiliary module 30 and turn on, and then bus control loop turns on.So as to
Realize and the adaptive break-make of bus control loop is controlled.
In a specific example, when grid switching operation is carried out in power system, usual bus 120 is forbidden jumping
Lock, it is allowed to which bus 20 closes a floodgate, in order to ensure that the operation that can meet to disconnect bus 20 during grid switching operation is returned
Road, bus 20 can not operate during realizing back brake, interval disconnecting switch auxiliary module 30 can be connected into mother open circuit
Between the negative pole of breaking coil output end 24 and bus the control power supply 110 of device 20, composition bus controls back
Road, module 30 is aided in realize the auto switching control to bus control loop by being spaced disconnecting switch.
Preferably, electric blocking logic can be used by being spaced disconnecting switch auxiliary module 30, will be connected to institute in double-bus
Between spaced bus isolating switch (containing the first bus isolating switch and the second bus isolating switch) auxiliary circuit composes in parallel
Carry out being composed in series interval every disconnecting switch supplementary module 32, and by all interval disconnecting switch supplementary modules 132 in double-bus
Disconnecting switch aids in module 30.Wherein, electric blocking logic may refer to the auxiliary section using equipment such as breaker, disconnecting switch
Point access is needed on the electric operating such as disconnecting switch or grounding switch of locking loop, so as to realize mutually closing between switchgear
Lock.General principle is exactly that " close/point " state of the auxiliary contact using breaker, isolated switchgear entirely controls back to realize
The break-make on road.
Above-mentioned each embodiment of bus control loop, module is aided in connect mother open circuit by being spaced disconnecting switch
Device, bus control power supply, form bus control loop, in power system grid switching operation, by interval every
Leave pass auxiliary module can adaptive break-make bus control loop, realize during grid switching operation to bus control
The auto switching control in loop processed, it is not necessary to the break-make control of manual operation bus, exist so as to improve power system
Security performance during grid switching operation.
In a specific embodiment, as shown in figure 3, the concrete structure for bus control loop embodiment shows
It is intended to；
Be spaced disconnecting switch supplementary module 32 include the first bus isolating switch auxiliary circuit 322 and with the first bus
The second bus isolating switch auxiliary circuit 324 in parallel of disconnecting switch auxiliary circuit 322；
The breaking coil of the normally closed node input connection bus 20 of first bus isolating switch auxiliary circuit 322
Output end 24, the negative pole of normally closed node output end connection bus control power supply 10；
The breaking coil of the normally closed node input connection bus 20 of second bus isolating switch auxiliary circuit 324
Output end 24, the negative pole of normally closed node output end connection bus control power supply 10.
Wherein, the first bus isolating switch auxiliary circuit 322 refers to connecting keeping apart for the first bus in spacing devices
The auxiliary circuit of pass；Second bus isolating switch auxiliary circuit 324 refers to connecting keeping apart for the second bus in spacing devices
The auxiliary circuit of pass.Wherein same interval equipment may include the first bus isolating switch auxiliary circuit 322 and the isolation of the first bus
Switch auxiliary circuit 324.When the operation principle of normally closed node is that disconnecting switch main circuit closes a floodgate, disconnecting switch auxiliary circuit breaks
Open；During disconnecting switch main circuit separating brake, the conducting of disconnecting switch auxiliary circuit.Disconnecting switch may include disconnecting switch main circuit and every
Pass auxiliary circuit is left, can be interaction relation between disconnecting switch auxiliary circuit and disconnecting switch main circuit.
In a specific embodiment, disconnecting switch supplementary module at least one is spaced.
Specifically, the quantity of interval disconnecting switch supplementary module can be according to the spacing devices number being connected between double-bus
Depending on amount；It can also be selected according in the practical application of power system according to each spacing devices being connected between double-bus
Take a number of interval disconnecting switch supplementary module.
In a specific example, if there was only a spacing devices between double-bus, one is only needed to keep apart
Supplementary module 32 is closed, the interval disconnecting switch supplementary module 32 may include the first bus isolating switch auxiliary circuit 322, Yi Jiyu
First bus isolating switch auxiliary circuit 322, second bus isolating switch auxiliary circuit 324 in parallel.Wherein, the first bus every
Leave the breaking coil output end 24 for the normally closed node input connection bus 20 for closing auxiliary circuit 322, normally closed node
The negative pole of output end connection bus control power supply 10；The normally closed node of second bus isolating switch auxiliary circuit 324 is defeated
Enter the breaking coil output end 24 of end connection bus 20, normally closed node output end connection bus control power supply 10
Negative pole.Bus control loop is formed by the interval disconnecting switch supplementary module 32, realized in grid switching operation process
In when change (bus isolating switch lock position) in spacing devices, automatically control the break-make of mother short-circuiting device control loop.
In another specific example, if being connected with multiple spacing devices between double-bus, multiple intervals are corresponding with
Disconnecting switch supplementary module 32 (interval disconnecting switch supplementary module is equal with spacing devices quantity), each interval disconnecting switch are auxiliary
Module 32 is helped to may include the first bus isolating switch auxiliary circuit 322 and the second bus isolating switch auxiliary circuit of same equipment
324, wherein the first bus isolating switch auxiliary circuit 322 is in parallel with the second bus isolating switch auxiliary circuit 324.It is each
Interval disconnecting switch supplementary module 32 is composed in series interval disconnecting switch auxiliary module 30, aids in module every disconnecting switch among it
The interval disconnecting switch supplementary module 32 of 30 head ends connects the breaking coil output end 24 of bus 20, is spaced disconnecting switch
The interval disconnecting switch supplementary module 32 of the tail end of module 30 is aided in connect the negative pole of bus control power supply 10.Pass through interval
Disconnecting switch auxiliary module 30 forms bus control loop, realizes during grid switching operation (the mother in spacing devices
When line keeps apart the change of barrier gate position), the break-make of mother short-circuiting device control loop is automatically controlled, improves the automation of grid switching operation
Degree.
In a specific embodiment, it is 110V or 220V that bus, which controls the supply voltage of power supply,.
In a specific example, bus control power supply can be by connecting bus, through moulds such as over commutation, filtering
Block is powered to bus；Bus control power supply can also use traditional program control source or battery.
In a specific embodiment, in order to illustrate to be spaced the specific annexation of disconnecting switch auxiliary module, such as Fig. 4
It is shown, it is that the interval disconnecting switch of bus control loop embodiment aids in modular structure schematic diagram；Bus will be connected to
The upper spaced bus isolating switch circuit of institute (contains the first bus isolating switch auxiliary circuit 322 and the second bus isolating switch
Auxiliary circuit 324) the normally closed node of auxiliary node first carries out parallel connection, composition interval disconnecting switch supplementary module 32；Then will be each
Individual interval disconnecting switch supplementary module is connected, composition interval disconnecting switch auxiliary module 30.
In a specific embodiment, in order to illustrate during power system back brake, bus control is realized
The adaptive break-make control in loop, introduce the operation principle of grid switching operation process：
As shown in figure 5, it is the back brake twin spans operation element principle schematic of bus control loop embodiment, to go out
Exemplified by the spacing devices of line 1, the spacing devices of outlet 1 are run by mother's I back brake to II is female.Bus paired running, then in bus open circuit
DS72 is in the case where closing for device CB-ML, I mother's disconnecting switch DS71, II mother's disconnecting switch, by mother II that outlet 1 is spaced every
Pass DS12 is left to close.
As shown in fig. 7, module is aided in disconnect work original for the interval disconnecting switch of bus control loop embodiment
Schematic diagram is managed, when the disconnecting switch to the spacing devices of outlet 1 carries out twin spans operation, interval disconnecting switch auxiliary module is to disconnect
State.Specifically, it is spaced disconnecting switch auxiliary module and uses electric blocking logic, will be all between I buses and II buses
The normally closed auxiliary node of the disconnecting switch auxiliary circuit at interval composes in parallel interval disconnecting switch supplementary module, then by each series connection
Disconnecting switch supplementary module composition interval disconnecting switch auxiliary module is spaced, therefore is spaced disconnecting switch auxiliary module "off" shape
State can only be that the I buses at same or multiple intervals and II bus isolating switch bodies all locate the state of " closing a floodgate ".Such as outlet in Fig. 5
Exemplified by 1 spacing devices, it is all position state of closing to be spaced 1 bus isolating switch DS11 and bus isolating switch DS12, i.e., bus every
Leave and close twin spans in the state of bus, because the normally closed auxiliary node of two corresponding disconnecting switch auxiliary circuits is all "off" shape
State, and then be spaced disconnecting switch auxiliary module and be also in "off" state, realize that bus control loop is in and disconnect
State.
Further, as shown in fig. 6, showing for the back brake single span operation element principle of bus control loop embodiment
It is intended to, by taking the spacing devices of outlet 1 as an example, after twin spans operation is completed, DS12 disconnecting switch closing positions is confirmed, if
DS12 disconnecting switch closing position in-place closings, then pull open DS11 disconnecting switch, and the load of the spacing devices of outlet 1 is all turned
II buses are moved on to, complete grid switching operation.
As shown in figure 8, aid in the original that worked in die combination for the interval disconnecting switch of bus control loop embodiment
Schematic diagram is managed, when the disconnecting switch to the spacing devices of outlet 1 carries out single span operation, interval disconnecting switch auxiliary module is to disconnect
State.Specifically, it is spaced disconnecting switch auxiliary module and uses electric blocking logic, will be all between I buses and II buses
The normally closed auxiliary node of the disconnecting switch auxiliary circuit at interval composes in parallel interval disconnecting switch supplementary module, then by each series connection
Disconnecting switch supplementary module composition interval disconnecting switch auxiliary module is spaced, therefore is spaced disconnecting switch auxiliary module " conducting " shape
During state, all locate the state of " closing a floodgate " when the I buses at same interval are with II bus isolating switch body differences.In Fig. 6
Exemplified by the spacing devices of outlet 1, the bus isolating switch DS11 for being spaced 1 is "on" position, and bus isolating switch DS12 is separating brake shape
During state, i.e., bus isolating switch single span is in the state of bus, due to the normally closed auxiliary node of the disconnecting switch circuit of two sections of buses
All one or both of which is in " conducting " state, and then is spaced disconnecting switch auxiliary module and is also in " turning on " state,
Realize that bus control loop is in the conduction state.
It is adaptive according to the normally closed node of bus isolating switch auxiliary circuit in above-mentioned bus control loop embodiment
Bus control loop should be controlled, is added in original control loop and is spaced disconnecting switch auxiliary module, and
It can be made up of every disconnecting switch auxiliary module hardwire cable, it is any without producing to original control, protection system
Influence.Module is aided in by increasing interval disconnecting switch, can avoid artificially going to disconnect and close mother during grid switching operation
The control power supply of breaker, improve the automaticity of grid switching operation.
In order to solve conventional solution during grid switching operation, manual operation causes what security performance cannot ensure
Problem, the invention provides a kind of bus control device embodiment 1；Fig. 9 is bus control device of the present invention
The structural representation of embodiment 1；As shown in figure 9, bus control device may include main control module 40, and it is above-mentioned any
A kind of bus control loop；
The positive pole of the first interface of main control module 40 connection bus control power supply 10, second interface connection mother open circuit
Device controls the negative pole of power supply 10, and the 3rd interface connects the breaking coil input 22 of bus 20.
Specifically, the positive pole of bus control power supply 10, second interface are connected by the first interface of main control module 40
The negative pole of bus control power supply 10 is connected, bus control power supply 10 is powered to main control module 40；Pass through
Three interfaces connect the breaking coil input 22 of bus 20, make main control module 40 that trip command is transferred into adjustment line
Circle.
In a specific embodiment, include the attention device of connection main control module 40.
Specifically, alarm module can be connected on any position in bus control loop.Specifically show at one
In example, one end connection main control module 40 of alarm module, the other end connects the breaking coil input 22 of bus 20.Its
In, alarm module can be indicator lamp or buzzer.
In a specific embodiment, main control module 40 includes single-chip microcomputer or industrial computer.
Preferably, industrial computer can be PLC (Programmable Logic Controller：Programmable logical controller
Device) etc..
In a specific example, main control module 40 may include communication unit, and main control module 40 can pass through communication unit
Communicated with host computer.Wherein, communication unit can be wireless communication unit or Landline communication unit.
It is the concrete structure of bus control device embodiment as shown in Figure 10 in a specific embodiment
Schematic diagram, bus control device may include bus control box, and bus and interval disconnecting switch are auxiliary
Help module；The breaking coil output end of bus is connected every one end of disconnecting switch auxiliary module among it, the other end connects
Connect the power cathode interface of bus control box；The breaking coil first input end connection bus of bus
The positive source interface of control box, the tripping operation of the input of the breaking coil second connection bus control box of bus
Interface；The positive source interface of the closing coil first input end connection bus control box of bus, mother are broken
The combined floodgate interface of the input of the closing coil second connection bus control box of road device, the closing coil of bus are defeated
Go out the power cathode interface of end connection bus control box；Bus control box is supplied by 110V or 220V dc sources
Electricity.
Wherein, bus control box may include main control module and bus control power supply, can pass through master control mould
Block carries out break-make control to the breaking coil of bus.
Specifically, when power system starts, bus control box turns on breaking coil by trip command；Entering
During row grid switching operation, module is aided in realize auto switching bus control loop by being spaced disconnecting switch.
Above-mentioned each embodiment of bus control device, during grid switching operation, aided in by being spaced disconnecting switch
The bus control loop of module composition, the position according to the interval bus isolating switch being connected between double-bus can be achieved
Put and change and auto switching, reduce the time that control bus power supply disconnects and closed manually, strengthen the choosing of bus protection
Selecting property, the working strength of operating personnel is reduced, reduce the possibility of human error, the safe and stable operation for lifting power network is horizontal.
In order to improve the automaticity of grid switching operation process, and the security performance of grid switching operation, the invention provides
A kind of bus control system embodiment 1；Figure 11 is the structural representation of bus control system embodiment 1 of the present invention
Figure；As shown in figure 11, it may include monitor supervision platform 50, and the above-mentioned bus control device of any one；Monitor supervision platform
50 communicate to connect with the main control module 40 of bus control device；
Bus control loop is according to the division state of interval disconnecting switch, and be turned on or off bus control
Loop；
The on off operating mode of bus control loop is transferred to monitor supervision platform by main control module 40, so that monitoring platform pair
The on off operating mode of bus control loop is monitored.
Wherein, monitor supervision platform 50 can be mobile phone, computer etc. or the monitoring system being made up of multiple computers
System.Monitor supervision platform 50 can be connected with the wire communication of main control module 40 of bus control device, can also be broken with mother
The radio communication of main control module 40 connection of road device control device.
Specifically, same interval disconnecting switch (the first bus isolating switch and second between double-bus is connected to
Bus isolating switch) when all closing a floodgate, the interval disconnecting switch auxiliary module 30 in bus control loop disconnects, then mother
Breaker control circuit is off-state；Same interval disconnecting switch between double-bus is connected to (keep apart by the first bus
Close and the second bus isolating switch) it is different when when closing a floodgate, the interval disconnecting switch auxiliary module in bus control loop
30 conductings, then bus control loop is conducting state；Main control module 40 is by the break-make shape of bus control loop
State is transferred to monitor supervision platform, and remote monitoring is carried out to the on off operating mode in bus loop by monitor supervision platform 50.
In a specific embodiment, monitor supervision platform includes processor, and the display of connection processor；
The on off operating mode for the bus control loop that processor transmits according to main control module, bus is controlled
The on off operating mode in loop is transferred to display；Display is shown the on off operating mode of the bus control loop received
Show.
In a specific embodiment, communicate to connect as wire communication connection or radio communication connection.
Specifically, monitor supervision platform can connect main control module by wire communication, also master control mould can be connected by radio communication
Block.
Above-mentioned each embodiment of bus control system, passes through the interval disconnecting switch in bus control device
Aid in die combination to realize to control the auto switching of bus control loop, mother can be monitored in real time by monitor supervision platform and broken
Road device control loop on off operating mode, improve the automaticity of grid switching operation process, the break-make of bus control loop
Control can adaptively be completed according to bus isolating switch breaking-closing operating, the risk for avoiding operations staff's maloperation from bringing, so as to
Improve security performance of the power system during grid switching operation.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply 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, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, 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
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of bus control loop, it is characterised in that control power supply including bus, be connected to the first bus
And the second bus between bus, each interval being connected between first bus and second bus keeps apart
Close supplementary module；Each interval disconnecting switch supplementary module is composed in series interval disconnecting switch auxiliary module；
Described interval disconnecting switch auxiliary module one end connects the breaking coil output end of the bus, other end connection
The negative pole of the bus control power supply；The positive pole of the bus control power supply connects the bus
Breaking coil input.
2. bus control loop according to claim 1, it is characterised in that the interval disconnecting switch auxiliary mould
Block includes the first bus isolating switch auxiliary circuit and the in parallel with the first bus isolating switch auxiliary circuit second mother
Line disconnecting switch auxiliary circuit；
The normally closed node input of the first bus isolating switch auxiliary circuit connects the breaking coil of the bus
Output end, normally closed node output end connect the negative pole of the bus control power supply；
The normally closed node input of the second bus isolating switch auxiliary circuit connects the breaking coil of the bus
Output end, normally closed node output end connect the negative pole of the bus control power supply.
3. bus control loop according to claim 1 or 2, it is characterised in that
Described interval disconnecting switch supplementary module at least one.
4. bus control loop according to claim 3, it is characterised in that the bus controls power supply
Supply voltage be 110V or 220V.
5. a kind of bus control device, it is characterised in that any including main control module, and the claims 1 to 4
Bus control loop described in one；
The main control module first interface connects the positive pole of the bus control power supply, and second interface connects the mother
The negative pole of breaker control power supply, the 3rd interface connect the breaking coil input of the bus.
6. a kind of bus control device according to claim 5, it is characterised in that also include connecting the master control
The attention device of module.
7. a kind of bus control device according to claim 5 or 6, it is characterised in that the main control module is
Single-chip microcomputer or industrial computer.
8. a kind of bus control system, it is characterised in that any including monitor supervision platform, and the claims 5 to 7
Bus control device described in one；The main control module of the monitor supervision platform and the bus control device leads to
Letter connection；
Bus control loop is according to the division state of interval disconnecting switch, and be turned on or off the bus control
Loop；
The on off operating mode of the bus control loop is transferred to the monitor supervision platform by main control module, so that the monitoring
Platform is monitored to the on off operating mode of the bus control loop.
9. a kind of bus control system according to claim 8, it is characterised in that the monitor supervision platform includes place
Manage device, and the display of the connection processor；
The on off operating mode for the bus control loop that the processor transmits according to the main control module, by the mother
The on off operating mode of connection breaker control circuit is transferred to the display；
The display is shown the on off operating mode of the bus control loop received.
10. a kind of bus control system according to claim 8 or claim 9, it is characterised in that the communication connection is
Wire communication connection or radio communication connection.
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| CN201711174182.4A CN107819360A (en) | 2017-11-22 | 2017-11-22 | Bus control loop, device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711174182.4A CN107819360A (en) | 2017-11-22 | 2017-11-22 | Bus control loop, device and system |
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| CN201711174182.4A Pending CN107819360A (en) | 2017-11-22 | 2017-11-22 | Bus control loop, device and system |
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| CN109672265A (en) * | 2019-03-01 | 2019-04-23 | 深圳供电局有限公司 | Automatically controlled bus connection switch driving device and its control method |
| CN109742848A (en) * | 2019-03-01 | 2019-05-10 | 深圳供电局有限公司 | Automatically controlled bus connection switch system and its control method |
| CN112803375A (en) * | 2021-01-06 | 2021-05-14 | 许继集团有限公司 | Intelligent substation bus-tie abnormity processing method and device |
| CN113809826A (en) * | 2021-09-10 | 2021-12-17 | 广东电网有限责任公司 | Transformer substation switching control system and method |
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