CN106100117A - Distributed feeder-terminal-unit collocation method based on minimum distribution region - Google Patents
Distributed feeder-terminal-unit collocation method based on minimum distribution region Download PDFInfo
- Publication number
- CN106100117A CN106100117A CN201610425393.XA CN201610425393A CN106100117A CN 106100117 A CN106100117 A CN 106100117A CN 201610425393 A CN201610425393 A CN 201610425393A CN 106100117 A CN106100117 A CN 106100117A
- Authority
- CN
- China
- Prior art keywords
- switch
- unit
- minimum distribution
- distribution region
- adjacent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 34
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 238000004364 calculation method Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012795 verification Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 238000012827 research and development Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- H02J13/0006—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Abstract
A kind of distributed feeder-terminal-unit collocation method based on minimum distribution region, is divided into distributed feeder-terminal-unit: collecting unit, gathers in minimum distribution region the voltage at switch, electric current and flows through the power of switch；Unit is set, equipment, limit value and the operational mode in adjacent minimum distribution region is carried out parameter setting；Display unit, information and the parameter arranging unit setting to collecting unit collection are shown；Communication unit, the feeder-terminal-unit minimum distribution region in adjacent with upstream and downstream communicates, and communicates with main website or system substation system；Computing unit, obtains information from collecting unit and communication unit, analyzes current switch operating state；Control unit, is controlled the state of described minimum distribution section switch according to the result of calculation of computing unit；Secondary battery unit, for powering to described distributed feeder-terminal-unit.The present invention can effectively solve distributed power source and access or the fault fast positioning isolation in the case of loop-net operation.
Description
Technical field
The present invention relates to a kind of distribution feeder automation device.Particularly relate to a kind of based on minimum distribution region point
Cloth feeder-terminal-unit collocation method.
Background technology
Feed line automatization system, as the important component part of distribution automation, has isolated fault region and makes to perfect district
Territory quickly resume power supply function.To reduce power failure area, shorten power off time, improve power supply reliability significant.Point
Cloth feed line automatization system is a kind of isolated fault and recover the method powered of healthy sections of cooperating relying on equipment room.
Switch fitting-type feeder automation and " face protection " type feeder automation can be divided into according to the mode of Fault Isolation.Switch coordinates
Type feeder automation, without communication, relies only on cooperating between automatization's switch and gets final product isolated fault and recover healthy sections
Power supply.The type feed line automatization system is isolated because relying on the setting time difference between automatization's switch and multiple shot reclosing
Fault, the Fault Isolation time is long, and system shock is big, and service life of equipment is low." face protection " type feeder automation is a kind of dependence
The method being in communication with each other and powering through certain logical judgment isolated fault and recovery healthy sections between automatization's switch, though
So Fault Isolation speed is fast, little to system shock.There is important reality research and development meaning.But this kind of distributed feeder automation
Research rests in theory more, and research and development and the effectively application of actual device are the most more short of.
Summary of the invention
The technical problem to be solved is to provide one can effectively solve distributed power source access or looped network fortune
The distributed feeder-terminal-unit collocation method based on minimum distribution region of the fault fast positioning isolation in the case of row.
The technical solution adopted in the present invention is: a kind of distributed feeder-terminal-unit based on minimum distribution region is joined
Put method, distributed feeder-terminal-unit is divided into 7 unit, including:
Collecting unit, for gathering in minimum distribution region voltage at switch, electric current and flowing through the power of switch；
Unit is set, for equipment, limit value and the operational mode in adjacent minimum distribution region is carried out parameter setting；
Display unit, for being shown the information of collecting unit collection and the parameter arranging unit setting；
Communication unit, the feeder-terminal-unit in the minimum distribution region adjacent with upstream and downstream communicates, and
Communicate with main website or system substation system；
Computing unit, obtains information from collecting unit and communication unit, analyzes current switch operating state；
Control unit, is controlled the state of described minimum distribution section switch according to the result of calculation of computing unit；
Secondary battery unit, for powering to described distributed feeder-terminal-unit.
Described collecting unit is to gather in minimum distribution region the AB phase voltage at switch and BC phase by misphase mode
Voltage, and define gather AB phase voltage voltage transformer be A end, gather BC phase voltage voltage transformer be B end, wattful power
It is just that rate flows to B end from A end, otherwise is negative.
Described arrange unit arrange the adjacent switch title in the adjacent minimum distribution region in upstream and downstream, IP address,
Fault current limit value and distributed with main station type control model, and set adjacent minimum distribution region, upstream as first group, under
Swimming adjacent minimum distribution region is second group.
Described communication unit includes FGH tri-groups, and wherein, F group is led to for minimum distribution region adjacent with upstream
Letter, G group communicates for minimum distribution region adjacent with downstream, and H group is for communicating with main station system or substation system.
Described computing unit is the electricity currently flow through in minimum distribution region at switch collected according to collecting unit
Pressure, electric current and flow through the direction of power of switch, and according to F group in communication unit and G group respectively with adjacent minimum distribution district
The information mentioned after field communication, the operating state switched in calculating minimum distribution region.
The operating state of switch in the minimum distribution region of described calculating, including:
The logical value of definition switch is to represent that switch is failure to actuate when 0, and logical value is to represent switch motion separating brake, logic when 1
Value together decides on by switching in two minimum distribution regions adjacent with described minimum distribution region, and concrete formula is:
Ax={ Vgroupx1||Vgroupx2} (1)
Wherein, | | for logic or operator, AxFor switching the action logic value of x, Vgroupx1、Vgroupx2For switch x's
1st, the 2nd adjacent switch group logical value,
The switching logic value that adjacent switch group logical value is comprised by switch in adjacent minimum distribution region together decides on,
Concrete formula is:
Vgroupxi={ VNx&&VNx1&&VNx2…&&VNxj…&&VNxn} (2)
Wherein ， && is logic and operation symbol, VNxj, for comprising patrolling of switch in the adjacent minimum distribution region of switch x i-th
Collect and be worth, j=1,2 ... n, VNxFor switching the logical value of x,
When switch experience fault current, the logical value of described switch is determined by the Fault load flow direction flowing through switch, the
The logical value of one group of adjacent minimum distribution region and second group of adjacent minimum distribution region breaker in middle is embodied as:
Wherein P is the active power flowing through switch, and I is the current value flowing through switch, ICFor switch current setting,
groupx1It is the switch in first group of adjacent minimum distribution region, groupx2It it is the switch in second group of adjacent minimum distribution region；
When switch does not experiences fault current, the logical value of described switch is by switch fault electricity in adjacent minimum distribution region
Stream logical value determines, concrete formula is:
VNx={ INX||IN1||IN2…||INn} (4)
Wherein INXFor switching the fault current logical value of x, INxjFor switch fault in the adjacent minimum distribution region of switch x
Current logic value, j=1,2 ... n.
The outfan of described control unit is connected with switch, and input receives the data after computing unit is analyzed and communication
Main station system or the control data of substation system in unit H group, the instruction according to receiving main station system or substation system controls
The state of switch.
Described secondary battery unit includes accumulator and control module, and described control module controls the discharge and recharge of accumulator,
Described accumulator is responsible for the power supply of whole distributed feeder-terminal-unit.
The method also including fault verification and isolation, comprises the steps:
(1) if being distributed AC servo system pattern at the equipment described in unit that arranges, when an error occurs, fault current is flow through
Switch on feeder-terminal-unit by sending back the switch in the adjacent minimum distribution region of road direction first group and second group
Send over-current signal, receive the fault-signal of the switch in adjacent minimum distribution region by receiving loop, prolong through 10-20ms
Time after, fault information collection is complete, starts the operating state of the switch flowing through fault current described in computing unit calculating, works as calculating
After unit has calculated, start control unit according to result of calculation, the state of the switch flowing through fault current is controlled；
(2) if equipment is main station type control model in arranging unit, then, when fault occurs, the switch of fault current is flow through
On feeder-terminal-unit send over-current signal by communication unit to main station system and substation system, and receive main station system
Or the control signal of substation system, start control unit, the state of switch is controlled.
The distributed feeder-terminal-unit collocation method based on minimum distribution region of the present invention, based on minimum distribution district
In territory, the intercommunication of each switch, is divided into seven standard modules, separate between each module, plug and play, device design letter
Single practical reliable, can effectively solve distributed power source and access or the fault fast positioning isolation in the case of loop-net operation.Ensure
Healthy sections reliable power supply, has important practical significance.
Accompanying drawing explanation
Fig. 1 is the structural representation of an open loop power distribution network；
Fig. 2 is a closed loop power distribution net tidal current chart.
Detailed description of the invention
The distributed feeder-terminal-unit based on minimum distribution region to the present invention below in conjunction with embodiment and accompanying drawing
Collocation method is described in detail.
The distributed feeder-terminal-unit collocation method based on minimum distribution region of the present invention, it is characterised in that will
Distributed feeder-terminal-unit (FTU) is divided into 7 unit, including: collecting unit, arranges unit, display unit, calculating list
Unit, control unit and secondary battery unit.Wherein:
Collecting unit, for gathering in minimum distribution region voltage at switch, electric current and flowing through the power of switch；
Described collecting unit is to gather in minimum distribution region the AB phase voltage at switch and BC phase by misphase mode
Voltage, and define gather AB phase voltage voltage transformer be A end, gather BC phase voltage voltage transformer be B end, wattful power
It is just that rate flows to B end from A end, otherwise is negative.
Unit is set, for equipment, limit value and the operational mode in adjacent minimum distribution region is carried out parameter setting；
Described arrange unit arrange the adjacent switch title in the adjacent minimum distribution region in upstream and downstream, IP address,
Fault current limit value and distributed with main station type control model, and set adjacent minimum distribution region, upstream as first group, under
Swimming adjacent minimum distribution region is second group.
Display unit, for being shown the information of collecting unit collection and the parameter arranging unit setting；
Communication unit, the feeder-terminal-unit in the minimum distribution region adjacent with upstream and downstream communicates, and
Communicate with main website or system substation system；
Described communication unit includes FGH tri-groups, and wherein, F group is led to for minimum distribution region adjacent with upstream
Letter, G group communicates for minimum distribution region adjacent with downstream, and H group is for communicating with main station system or substation system.
Computing unit, obtains information from collecting unit and communication unit, analyzes current switch operating state；
Described computing unit is the electricity currently flow through in minimum distribution region at switch collected according to collecting unit
Pressure, electric current and flow through the direction of power of switch, and according to F group in communication unit and G group respectively with adjacent minimum distribution district
The information mentioned after field communication, the operating state switched in calculating minimum distribution region.In described calculating minimum distribution region
The operating state of switch, including:
The logical value of definition switch is to represent that switch is failure to actuate when 0, and logical value is to represent switch motion separating brake, logic when 1
Value together decides on by switching in two minimum distribution regions adjacent with described minimum distribution region, and concrete formula is:
Ax={ Vgroupx1||Vgroupx2} (1)
Wherein, | | for logic or operator, AxFor switching the action logic value of x, Vgroupx1、Vgroupx2For switch x's
1st, the 2nd adjacent switch group logical value,
The switching logic value that adjacent switch group logical value is comprised by switch in adjacent minimum distribution region together decides on,
Concrete formula is:
Vgroupxi={ VNx&&VNx1&&VNx2…&&VNxj…&&VNxn} (2)
Wherein ， && is logic and operation symbol, VNxj, for comprising patrolling of switch in the adjacent minimum distribution region of switch x i-th
Collect and be worth, j=1,2 ... n, VNxFor switching the logical value of x,
When switch experience fault current, the logical value of described switch is determined by the Fault load flow direction flowing through switch, the
The logical value of one group of adjacent minimum distribution region and second group of adjacent minimum distribution region breaker in middle is embodied as:
Wherein P is the active power flowing through switch, and I is the current value flowing through switch, ICFor switch current setting,
groupx1It is the switch in first group of adjacent minimum distribution region, groupx2It it is the switch in second group of adjacent minimum distribution region；
When switch does not experiences fault current, the logical value of described switch is by switch fault electricity in adjacent minimum distribution region
Stream logical value determines, concrete formula is:
VNx={ INX||IN1||IN2…||INn} (4)
Wherein INXFor switching the fault current logical value of x, INxjFor switch fault in the adjacent minimum distribution region of switch x
Current logic value, j=1,2 ... n.
Control unit, is controlled the state of described minimum distribution section switch according to the result of calculation of computing unit；
The outfan of described control unit is connected with switch, and input receives the data after computing unit is analyzed and communication
Main station system or the control data of substation system in unit H group, the instruction according to receiving main station system or substation system controls
The state of switch.
Secondary battery unit, for powering to described distributed feeder-terminal-unit.
Described secondary battery unit includes accumulator and control module, and described control module controls the discharge and recharge of accumulator,
Described accumulator is responsible for the power supply of whole distributed feeder-terminal-unit.
The distributed feeder-terminal-unit collocation method based on minimum distribution region of the present invention, also includes fault verification
With the method for isolation, comprise the steps:
(1) if being distributed AC servo system pattern at the equipment described in unit that arranges, when an error occurs, fault current is flow through
Switch on feeder-terminal-unit by sending back the switch in the adjacent minimum distribution region of road direction first group and second group
Send over-current signal, receive the fault-signal of the switch in adjacent minimum distribution region by receiving loop, prolong through 10-20ms
Time after, fault information collection is complete, starts the operating state of the switch flowing through fault current described in computing unit calculating, works as calculating
After unit has calculated, start control unit according to result of calculation, the state of the switch flowing through fault current is controlled；
(2) if equipment is main station type control model in arranging unit, then, when fault occurs, the switch of fault current is flow through
On feeder-terminal-unit send over-current signal by communication unit to main station system and substation system, and receive main station system
Or the control signal of substation system, start control unit, the state of switch is controlled.
Instantiation is given below in conjunction with Fig. 1, Fig. 2:
Embodiment one
Power distribution network as shown in Figure 1, when system open loop runs, if break down in switch BD interval, each distributed feedback
The action step of line automation device is:
Feeder-terminal-unit at the switch S1 in minimum distribution region understands it by collecting unit and flows through fault current,
And active power direction is for flowing to region S1A from switch, therefore VNS1=1, understand its adjacent minimum distribution region by communication unit
Switch A experiences fault current, and active power direction is for flowing out region S1A therefore VNS11=0, from formula in computing unit (2)
VgroupS11=1&&0}=0, so AS1=0, switch S1 is failure to actuate.Do not start control unit.
By feeder-terminal-unit sampling unit at the switch A in minimum distribution region adjacent with switch S1, it is known that its stream
Cross fault current, and active power direction is to flow out from region S1A, inflow region ABC.Single by the communication unit of A and calculating
Unit understands, for the first adjacent sets at switch A, logical value VN of switch AAIt is 0, logical value VN of switch S1A1It is 1, then opens
Close the first adjacent switch group Vgroup at AA1Value be 0；For the second adjacent switch group at switch A, the logical value of switch A
VNABe 1, the communication unit of switch A the active power direction understanding switch B is to flow out region ABC, so its logical value
VNA1Being 0, switch C does not experiences fault current, and its switching logic value is together decided on by switching ABC, according to formula (5), switchs A, B
Fault current logical value be all 1, the fault current logical value of switch C is 0, the logical value of formula (4) switch C be 1.So
Second switch group logical value Vgroup at switch AA2It is 0.In sum, formula (1) action logic understanding switch A is 0,
Switch A is failure to actuate.Do not start control unit.
By switch B feeder-terminal-unit collecting unit, it is known that it flows through fault current, and active power direction be from
Region ABC flows out, inflow region BD.From the communication unit at switch B and computing unit, for the first phase at switch B
Adjacent group, the logical value of switch B is 0, logical value VN of switch AABeing 1, switch C does not experiences fault current, and the switch at switch C is patrolled
Collecting value to be together decided on by switch ABC, by formula (4), (5), the logical value of switch C is 1, therefore its first adjacent switch group logical value
VgroupB1It is 0；For the second adjacent switch group, the logical value of switch B is 1, and switch D does not experiences fault current, at switch D
Switching logic value is together decided on by BD.Fault current logical value according to formula (5) switch B is 1, and the fault current of switch D is patrolled
Collecting value is 0, by switching logic value VN of formula (4) switch DBIt is 1, therefore switch B the second adjacent switch group logical value VgroupB2For
1, in sum, by formula (1), it is known that the action logic value of switch B is 1, switchs B action separating brake.Computing unit is by switch B's
Operating state is sent to control unit, and control unit controls switch B separating brake.
By switch C feeder-terminal-unit sampling unit, it is known that it does not experiences fault current.Communication by switch C
Unit and computing unit understand, and for the first adjacent switch group ABC, the logical value of switch A is 1, and the logical value of switch B is 0, opens
The logical value closing C is 1, the first adjacent switch group logical value Vgroup at switch CC1It is 0；For the second adjacent switch group, switch C
The adjacent switch at place is frontier node, and frontier node does not experiences fault current, and at frontier node, switching logic value is by adjacent switch C
Together deciding on, by formula (4) (5), switch C is 0 with the fault current logical value of frontier node, and switching logic value is all 0.Therefore open
Close second adjacent switch group logical value Vgroup of CC2It is 0, by formula (1), it is known that the action logic value of switch C is 0, switchs C
It is failure to actuate.Do not start control unit.
By switch D feeder-terminal-unit sampling unit, it is known that it does not experiences fault current.Communication by switch D
Unit and computing unit understand, and for the first adjacent switch group, the logical value of switch B is 1, and the logical value of switch D is 1, switchs D
First adjacent switch group logical value Vgroup at placeD1It is 1；For the second adjacent switch group, switch E is interconnection switch, does not experiences
Fault current, according to formula (4) (5), the fault current logical value of switch DE is 0, and switching logic value is all 0, therefore at switch D
Second adjacent switch group logical value VgroupD2Being 0, by formula (1), it is known that the action logic value of switch D is 1, switch D action divides
Lock.The operating state of switch D is sent to control unit by computing unit, and control unit controls switch D separating brake.
Other switches, owing to not experiencing fault current, are all 0 according to formula (4) (5) its fault current logical value, and switch is patrolled
Collect value and be all 0, therefore adjacent switch class value is also all 0, it is clear that switch motion logical value is also all 0, and switch is failure to actuate.
So far, whole Fault Isolation is disposed, and switchs B, D separating brake, and fault is isolated in this interval, and interconnection switch E prolongs
Time the time to rear startup closing function, recover the power supply perfecting section DE.
Embodiment two
When system operation with closed ring, for power distribution network shown in Fig. 1, if switch BD interval break down, switch S1, A, B, D,
E, F, G, H, S2 all experience fault current, and switch C does not experiences fault current.Its fault effective power flow flows to as shown in Figure 2, each
The action step of distributed feeder-terminal-unit is:
The analysis of switch S1, A, C is identical with during open loop operation, repeats no more.
By switch B feeder-terminal-unit sampling unit, it is known that it experiences fault current.Communication unit by switch B
Unit and computing unit understand, and to the first adjacent switch group ABC at switch B, the logical value of switch A is 1, the logical value of switch B
Being 0, the logical value of switch C is 1, logical value Vgroup of the first adjacent setsB1It is 0；For the second adjacent switch group BD, switch B
Logical value VNBBeing 1, switch D flows through fault current, and active power direction is for flowing into interval B D, therefore the switch at switch D is patrolled
Collect value VNB1It is 1, therefore the second adjacent switch group logical value Vgroup at switch BB2It is 1, by formula (1), it is known that switch B's is dynamic
It is 1 as logical value, switchs B action separating brake.The operating state of switch B is sent to control unit, control unit control by computing unit
System switch B separating brake.
By switch D feeder-terminal-unit sampling unit, it is known that it experiences fault current.Communication unit by switch D
Unit and computing unit understand, and to the first adjacent switch group BD at switch D, the logical value of switch B is 1, and the logical value of switch D is
1, logical value Vgroup of the first adjacent sets at switch DD1It is 1；For the second adjacent switch group DE, because switching the wattful power of D
Rate direction is for flowing out interval DE, therefore the switching logic value at switch D is 0, and switch E flows through fault current, and active power direction
For flowing into interval DE, therefore the switching logic value at switch E is 1, therefore the second adjacent switch group logical value VgroupD2It is 0, by formula
(1), it is known that the action logic value of switch D is 1, switchs D action separating brake.The operating state of switch D is sent to control by computing unit
Unit processed, control unit controls switch D separating brake.
The analysis of switch E, F, G, H, S2 is similar to the analysis switching S1, A during open loop, and switch is all failure to actuate, and repeats no more.
Claims (9)
1. a distributed feeder-terminal-unit collocation method based on minimum distribution region, it is characterised in that by distributed
Feeder-terminal-unit is divided into 7 unit, including:
Collecting unit, for gathering in minimum distribution region voltage at switch, electric current and flowing through the power of switch；
Unit is set, for equipment, limit value and the operational mode in adjacent minimum distribution region is carried out parameter setting；
Display unit, for being shown the information of collecting unit collection and the parameter arranging unit setting；
Communication unit, the feeder-terminal-unit in the minimum distribution region adjacent with upstream and downstream communicates, and with master
Stand or the communication of system substation system；
Computing unit, obtains information from collecting unit and communication unit, analyzes current switch operating state；
Control unit, is controlled the state of described minimum distribution section switch according to the result of calculation of computing unit；
Secondary battery unit, for powering to described distributed feeder-terminal-unit.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 1, it is special
Levying and be, described collecting unit is that the AB phase voltage gathered in minimum distribution region at switch by misphase mode is electric with BC phase
Pressing, and the voltage transformer defining collection AB phase voltage is A end, the voltage transformer gathering BC phase voltage is B end, active power
Flowing to B end from A end is just, otherwise is negative.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 1, it is special
Levying and be, the described unit that arranges arranges the adjacent switch title in the adjacent minimum distribution region in upstream and downstream, IP address, event
Barrier current limit and distributed with main station type control model, and set adjacent minimum distribution region, upstream as first group, downstream
Adjacent minimum distribution region is second group.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 1, it is special
Levying and be, described communication unit includes FGH tri-groups, and wherein, F group is led to for minimum distribution region adjacent with upstream
Letter, G group communicates for minimum distribution region adjacent with downstream, and H group is for communicating with main station system or substation system.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 1, it is special
Levying and be, described computing unit is the electricity currently flow through in minimum distribution region at switch collected according to collecting unit
Pressure, electric current and flow through the direction of power of switch, and according to F group in communication unit and G group respectively with adjacent minimum distribution district
The information mentioned after field communication, the operating state switched in calculating minimum distribution region.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 5, it is special
Levy and be, the operating state of switch in the minimum distribution region of described calculating, including:
Definition switch logical value be to represent that switch is failure to actuate when 0, logical value is to represent switch motion separating brake when 1, logical value by
Switching in two minimum distribution regions adjacent with described minimum distribution region and together decide on, concrete formula is:
Ax={ Vgroupx1||Vgroupx2} (1)
Wherein, | | for logic or operator, AxFor switching the action logic value of x, Vgroupx1、Vgroupx2For switch x the 1st,
2nd adjacent switch group logical value,
The switching logic value that adjacent switch group logical value is comprised by switch in adjacent minimum distribution region together decides on, specifically
Formula is:
Vgroupxi={ VNx&&VNx1&&VNx2…&&VNxj…&&VNxn} (2)
Wherein ， && is logic and operation symbol, VNxj, for comprising the logical value of switch in the adjacent minimum distribution region of switch x i-th,
J=1,2 ... n, VNxFor switching the logical value of x,
When switch experience fault current, the logical value of described switch is determined by the Fault load flow direction flowing through switch, first group
The logical value of adjacent minimum distribution region and second group of adjacent minimum distribution region breaker in middle is embodied as:
Wherein P is the active power flowing through switch, and I is the current value flowing through switch, ICFor the current setting of switch, groupx1
It is the switch in first group of adjacent minimum distribution region, groupx2It it is the switch in second group of adjacent minimum distribution region；
When switch does not experiences fault current, the logical value of described switch is patrolled by switch fault electric current in adjacent minimum distribution region
Collecting value to determine, concrete formula is:
VNx={ INX||IN1||IN2…||INn} (4)
Wherein INXFor switching the fault current logical value of x, INxjFor switch fault electric current in the adjacent minimum distribution region of switch x
Logical value, j=1,2 ... n.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 1, it is special
Levying and be, the outfan of described control unit is connected with switch, and input receives the data after computing unit is analyzed and communication
Main station system or the control data of substation system in unit H group, the instruction according to receiving main station system or substation system controls
The state of switch.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 1, it is special
Levying and be, described secondary battery unit includes accumulator and control module, and described control module controls the discharge and recharge of accumulator, institute
State accumulator and be responsible for the power supply of whole distributed feeder-terminal-unit.
Distributed feeder-terminal-unit collocation method based on minimum distribution region the most according to claim 1, it is special
Levy and be, the method also including fault verification and isolation, comprise the steps:
(1) if being distributed AC servo system pattern at the equipment described in unit that arranges, when an error occurs, opening of fault current is flow through
The feeder-terminal-unit shut sends by sending back the switch in the adjacent minimum distribution region of road direction first group and second group
Over-current signal, receives the fault-signal of the switch in adjacent minimum distribution region, after 10-20ms time delay by receiving loop
Fault information collection is complete, starts the operating state of the switch flowing through fault current described in computing unit calculating, works as computing unit
After calculating completes, start control unit according to result of calculation, the state of the switch flowing through fault current is controlled；
(2) if equipment is main station type control model in arranging unit, then, when fault occurs, flow through on the switch of fault current
Feeder-terminal-unit sends over-current signal by communication unit to main station system and substation system, and receives main station system or son
The control signal of system of standing, starts control unit, is controlled the state of switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425393.XA CN106100117A (en) | 2016-06-15 | 2016-06-15 | Distributed feeder-terminal-unit collocation method based on minimum distribution region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425393.XA CN106100117A (en) | 2016-06-15 | 2016-06-15 | Distributed feeder-terminal-unit collocation method based on minimum distribution region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106100117A true CN106100117A (en) | 2016-11-09 |
Family
ID=57235250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610425393.XA Pending CN106100117A (en) | 2016-06-15 | 2016-06-15 | Distributed feeder-terminal-unit collocation method based on minimum distribution region |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106100117A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728002A (en) * | 2017-08-23 | 2018-02-23 | 国网辽宁省电力有限公司经济技术研究院 | A kind of distribution network failure tuning on-line method for considering distributed power source access |
| CN109655709A (en) * | 2018-10-19 | 2019-04-19 | 南京海兴电网技术有限公司 | A kind of Fault Locating Method based on distributed feeder automation |
| CN111431150A (en) * | 2020-05-09 | 2020-07-17 | 杨益 | Power distribution fault processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010119097A2 (en) * | 2009-04-15 | 2010-10-21 | Renault Sas | Motor vehicle with electric propulsion and terminal for charging the bank of accumulators of such a vehicle |
| CN102761108A (en) * | 2012-07-18 | 2012-10-31 | 积成电子股份有限公司 | Logic operation-based distributed feeder automatization fault judgment method |
| CN102832602A (en) * | 2012-08-31 | 2012-12-19 | 积成电子股份有限公司 | Method for improving fault judgment reliability of distributed type feeder automation |
-
2016
- 2016-06-15 CN CN201610425393.XA patent/CN106100117A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010119097A2 (en) * | 2009-04-15 | 2010-10-21 | Renault Sas | Motor vehicle with electric propulsion and terminal for charging the bank of accumulators of such a vehicle |
| CN102761108A (en) * | 2012-07-18 | 2012-10-31 | 积成电子股份有限公司 | Logic operation-based distributed feeder automatization fault judgment method |
| CN102832602A (en) * | 2012-08-31 | 2012-12-19 | 积成电子股份有限公司 | Method for improving fault judgment reliability of distributed type feeder automation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728002A (en) * | 2017-08-23 | 2018-02-23 | 国网辽宁省电力有限公司经济技术研究院 | A kind of distribution network failure tuning on-line method for considering distributed power source access |
| CN109655709A (en) * | 2018-10-19 | 2019-04-19 | 南京海兴电网技术有限公司 | A kind of Fault Locating Method based on distributed feeder automation |
| CN111431150A (en) * | 2020-05-09 | 2020-07-17 | 杨益 | Power distribution fault processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102496937B (en) | Load balance based fault recovery method applied to intelligent distribution network | |
| CN105515188B (en) | A kind of power distribution network centralization feeder automation fault handling method | |
| WO2017166735A1 (en) | Power-grid self-healing system and self-healing logic thereof in 110kv chain power-supply mode | |
| CN104767182B (en) | A kind of overhead transmission line type distribution network failure processing method | |
| CN104518564B (en) | Backup automatic switching apparatus with area automatic switching function, and backup automatic switching method | |
| CN103022994B (en) | Method for achieving fault isolation and recovery of power distribution network with permeability distribution type power supply | |
| CN102761108B (en) | Logic operation-based distributed feeder automatization fault judgment method | |
| CN102751780B (en) | Wide area backup power auto-switch-on model self-adaptive generation method | |
| CN103872660B (en) | Network type protection method based on closed-loop mode operation of power network | |
| CN102213735B (en) | Typical test network with power distribution automation | |
| CN103093276B (en) | Urban power grid risk assessment method | |
| CN107749620A (en) | A kind of method of service restoration containing distributed power distribution network | |
| CN105548801B (en) | Fault Locating Method suitable for power distribution network operation with closed ring | |
| CN106208391B (en) | A kind of centralization based on distribution CPS with distribution FA cooperates with fault handling method | |
| CN106100117A (en) | Distributed feeder-terminal-unit collocation method based on minimum distribution region | |
| CN106786423A (en) | Service restoration method after a kind of failure under power distribution network differential protection action | |
| CN110148930A (en) | The method of fault location and topology automatic identification in distribution network | |
| CN107370235A (en) | Based on the adaptive region spare power automatic switching system and method under composite power supply pattern | |
| WO2015078029A1 (en) | Fault locating protection apparatus and method based on power distribution network intelligent terminal | |
| CN102136113A (en) | Reliability assessment scheme for secondary system of intelligent substation | |
| CN105896490A (en) | Fault processing method and device of power distribution network | |
| CN105738765A (en) | Power distribution network fault positioning method based on feeder line terminals and genetic algorithm | |
| CN104242467A (en) | Intelligent self-healing controlling method of feeder line of distribution network | |
| CN203368127U (en) | Spare power automatic switching control equipment for transformer substation network | |
| CN105337314B (en) | A kind of multi-source based on distributed power source black starting-up technology coordinates control fault handling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |