CN112134263A - Distribution network self-healing method based on peer-to-peer information interaction - Google Patents
Distribution network self-healing method based on peer-to-peer information interaction Download PDFInfo
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- CN112134263A CN112134263A CN202010843725.2A CN202010843725A CN112134263A CN 112134263 A CN112134263 A CN 112134263A CN 202010843725 A CN202010843725 A CN 202010843725A CN 112134263 A CN112134263 A CN 112134263A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/544—Setting up communications; Call and signalling arrangements
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention provides a distribution network self-healing method based on peer-to-peer information interaction, all devices in a system adopt multicast protocols such as GOOSE and the like to carry out peer-to-peer communication among the devices, the respective electric quantity information is interacted, the communication is independent of a communication master station, an FA communication network networking mode is adopted for communication, and the workload of on-site wire pulling and wiring is reduced; at the moment of failure, the positions of failure points can be rapidly and accurately judged through mutual subscription and release information, failure removal and isolation are achieved through fewer action times, a self-healing switching supply circuit is reasonably selected to conduct power switching supply according to the load capacity of each incoming line, the load capacity of a failure circuit and the operation topological relation, the problem that load unevenness and the like caused by unreasonable switching supply are avoided, the switching supply strategy adopted by the switching supply circuit supports multi-connection selection, and the switching supply circuit can be suitable for dual-power supply, multi-power supply and petal type operation structures.
Description
Technical Field
The invention relates to the technical field of power supply and distribution, in particular to a distribution network self-healing method based on peer-to-peer information interaction.
Background
Along with the rapid development of the urbanization process, the requirement on the power supply reliability of a power distribution system is continuously improved, when a certain part in a power distribution loop joint breaks down, the requirement is that a fault point can be rapidly and accurately positioned, the fault can be timely isolated and removed, reasonable power supply is converted, the power supply of a non-fault section is recovered, and the power failure area is reduced. At present, in a medium-voltage power distribution network system, most of adopted fault self-healing systems are centralized, namely data collection and strategy judgment are performed in a centralized manner, so that a large number of field wiring is required, and the maintenance workload is large; and because distribution network system structure is complicated, the operation mode is various, the relation of junctor is ambiguous etc., lead to the self-healing criterion can not generally be suitable for, the electric power changes the confession difficult, changes the confession unreasonable, all causes adverse effect to later distribution network operation, maintenance and transformation.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a distribution network self-healing method based on peer-to-peer information interaction, wherein a network networking mode is adopted for communication, so that the workload of on-site stay wire connection is reduced; at the moment of failure, the positions of failure points can be judged rapidly and accurately through mutual subscription and release information, failure removal and isolation are achieved with fewer action times, a self-healing transfer supply line is reasonably selected to conduct power transfer according to the load capacity of each incoming line, the load capacity of a failure line and the operation topological relation, and the problems that load is not uniform and the like due to unreasonable transfer are avoided.
The invention provides a distribution network self-healing method based on peer-to-peer information interaction, which comprises the following steps:
1) constructing an FA communication network, connecting devices into an FA switch, configuring GOOSE subscription and release information according to an actual operation topological relation, and establishing a line model; the head end switch subscribes direction starting information and switch refusing information of adjacent lines, and subscribes direction starting information and switch refusing information of a lower-level feeder line of the switch; releasing self direction starting information and switch failure information, and releasing the residual capacity Pres of the line calculated in real time;
the non-head-end section switch subscribes direction starting information and switch refusing information of adjacent lines, and subscribes direction starting information and switch refusing information of a lower-level feeder line of the switch; releasing self direction starting information and switch refusing information;
the feeder switch issues self direction starting information and switch refusing information without subscription;
the interconnection switch subscribes direction starting information and switch refusing information of adjacent lines, subscribes residual capacity Pres of line incoming switches at the head ends of buses and lines, and subscribes self-healing starting information, corresponding residual capacity during self-healing starting and interconnection action priority of other interconnection switches; and releasing self-healing starting information, the switch residual capacity Plres during self-healing starting and the communication action priority Lp.
2) Calculating electrical information in real time, monitoring fault starting information in real time according to a power direction algorithm, and judging the fault direction at the fault moment; the head end incoming line switch calculates the residual capacity Pres according to the design load and the current load; and the interconnection switch calculates the switch residual capacity Plres when the self-healing is started.
The residual capacity Plres of the switch is the residual capacity Pres of the incoming line at the voltage side subscribed by the interconnection switch when the interconnection self-healing is started, namely when the bus is under voltage and the line is under voltage loss, the residual capacity Plres of the switch is the residual capacity Pres of the incoming line at the bus side of the interconnection switch; when the bus is in voltage loss and the line has voltage, the residual capacity Pllres of the switch is the residual capacity Pres of the incoming line at the side of the interconnection switch line.
3) Performing fault positioning judgment according to the starting information of the self and the adjacent line;
3.1) taking the current power supply trend as the positive direction, judging that a fault occurs between the switch and an adjacent line switch with inconsistent starting direction when the starting direction of the switch is inconsistent with the starting direction of the adjacent line switch, and recording the adjacent line as a fault adjacent line;
3.2) if the operation mode is closed-loop operation, the fault adjacent line is reversely started; if the operation mode is open-loop operation, the fault adjacent line is not started;
3.3) judging whether the fault is removed or isolated according to the self starting condition of the switch; if the switch is started in a fault, the switch is in a fault removal action, and if the switch is not started in a fault, the switch is in a fault isolation action;
3.4) after the fault removal action, if the switch is tripped successfully, the fault removal is considered to be successful, and if the switch is tripped unsuccessfully, the upper stage receives a fault removal failure signal, and the fault removal action is expanded; after the fault removal action is successful, sending the operation load value Pflt before the line fault through multicast, and using the operation load value Pflt to connect a switch for calculation and supply transfer;
3.5) after the fault isolation action, if the switch is tripped successfully, the fault isolation is considered to be successful, and if the switch is tripped unsuccessfully, the next stage receives a fault isolation failure signal, and the fault isolation action is expanded; and after the fault isolation action is successful, multicast sending of isolation success information is used for connection switch starting self-healing.
4) After the fault is removed and isolated, if the operation mode is open-loop operation, the interconnection switch is self-healed;
4.1) the interconnection switch receives the information of successful fault isolation and the operation load value Pflt before the fault after the fault removal is successful, and the interconnection self-healing switching judgment is started and a self-healing starting signal is issued by combining the single-side voltage loss condition of the switch;
4.2) when a single interconnection switch is used, after interconnection self-healing is started, judging that the residual capacity Pres of a line with a pressure side subscribed by the switch is larger than the received operation load value Pflt before the fault, considering that supply can be switched, self-healing is started, and switching on after delay;
4.3) when a plurality of contact switches exist, the contact switch subscribes the residual capacities Plres 1-Plrens of other contact switches, the contact switch which starts self-healing is selected and compared with the contact switch Plres, and the contact switch which does not start self-healing rejects a comparison queue; if the residual capacity of the line is maximum, the interconnection switch is selected, and self-healing is started; otherwise, the self-healing is not started, and the interconnection switch with the largest residual capacity self-heals.
In the self-healing process of the interconnection switches, the action priority of the interconnection switches is configured, a range is set when the residual capacity is compared, and when the residual capacity of outgoing lines is not large, the interconnection switches with the minimum action priority Lp, namely the interconnection switch with the highest priority, are selected to carry out self-healing.
In the circuit model of step 1), a head-end switch subscribes direction starting information and switch refusing information of adjacent lines, and subscribes direction starting information and switch refusing information of a lower-level feeder line of the switch; releasing self direction starting information and switch failure information, and releasing the residual capacity Pres of the line calculated in real time;
the non-head-end section switch subscribes direction starting information and switch refusing information of adjacent lines, and subscribes direction starting information and switch refusing information of a lower-level feeder line of the switch; releasing self direction starting information and switch refusing information;
the feeder switch issues self direction starting information and switch refusing information without subscription;
the interconnection switch subscribes direction starting information and switch refusing information of adjacent lines, subscribes residual capacity Pres of line incoming switches at the head ends of buses and lines, and subscribes self-healing starting information, corresponding residual capacity during self-healing starting and interconnection action priority of other interconnection switches; and releasing self-healing starting information, the switch residual capacity Plres during self-healing starting and the communication action priority Lp.
The invention has the beneficial effects that:
1. all devices in the system adopt multicast protocols such as GOOSE and the like to carry out peer-to-peer communication among the devices, respective electric quantity information is interacted, a communication master station is not depended on, the communication adopts a network networking mode, and the workload of on-site wire pulling and wiring is reduced.
2. At the moment of failure, the positions of failure points can be judged rapidly and accurately through mutual subscription and release information, failure removal and isolation are achieved with fewer action times, a self-healing transfer supply line is reasonably selected to conduct power transfer according to the load capacity of each incoming line, the load capacity of a failure line and the operation topological relation, and the problems that load is not uniform and the like due to unreasonable transfer are avoided.
3. The adopted transfer strategy supports multi-connection selection and can be suitable for dual-power supply, multi-power supply and petal type operation structures.
4. And at the moment of fault occurrence, the fault direction of each device is calculated through the fault component, interactive judgment is carried out, and the method can also adapt to the open-loop operation mode and the closed-loop operation mode of the distribution network system.
Drawings
FIG. 1 is a schematic diagram of a communication connection according to the present invention.
FIG. 2 is a schematic diagram of the circuit connection according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
The invention is further described below with reference to the figures and examples.
Fig. 1 is a schematic diagram of system communication connection of the present invention, and fig. 2 is a schematic diagram of line connection of the present invention, which describes the implementation process of the present invention according to the schematic diagram:
s1, constructing an FA communication network, connecting all devices to an FA switch, configuring GOOSE subscription and release information according to the actual operation topological relation, and establishing a line model; the adjacent line is a line switch that is physically adjacent to the switch.
S1.1A, a head-end switch 1 of a station subscribes direction starting information and switch refusing information of an adjacent line 2, and subscribes direction starting information and switch refusing information of a lower-level feeder line of the switch; releasing self direction starting information and switch failure information, and releasing the residual capacity Pres of the line calculated in real time; the other head-end switch 6/11/12 subscribes and publishes information similar to switch 1;
s1.2, the non-head-end section switch 2 subscribes direction starting information and switch refusing information of an adjacent line 1/3, and subscribes direction starting information and switch refusing information of a lower-stage feeder 7 of the switch; releasing self direction starting information and switch refusing information; other non-head-end section switches subscribe and publish information similar to switch 2;
s1.3, a feeder switch 7 releases self direction starting information and switch refusing information without subscription; other feeder switches issue information similar to switch 7;
s1.4, the interconnection switch 5 subscribes direction starting information and switch refusing information of the adjacent line 4/10, subscribes the residual capacity Pres of the bus side inlet line switch 6 and the line side inlet line switch 1, subscribes self-healing starting information of the interconnection switch 8/9, corresponding residual capacity during self-healing starting and interconnection action priority; releasing self-healing starting information, switch residual capacity Plres during self-healing starting and communication action priority Lp; contact switch 8/9 subscribes and publishes information similar to switch 5;
s2, calculating electrical information in real time by all switches, monitoring fault starting information in real time according to a power direction algorithm, and judging the fault direction at the fault moment; the head end incoming line switch 1/6/11/12 calculates the residual capacity Pres according to the design load and the current load; the interconnection switch 5/8/9 calculates the switch residual capacity Pllres when the self-healing starts;
the Pllres is the incoming line Pres on the voltage side subscribed by the interconnection switch when the interconnection self-healing is started, taking the interconnection switch 5 as an example, if the bus has voltage and the line loses voltage during the self-healing start, the Pllres is the residual capacity Pres of the bus side incoming line switch 6; if the bus is under voltage loss and the line has voltage, Pllres is the residual capacity Pres of the line side incoming line switch 1;
s3, performing fault positioning judgment according to the starting information of the self and the adjacent lines;
s3.1 takes as an example that a fault occurs between switch 2 and switch 3;
the switch 1 detects that the switch 1 is started by a forward fault, the switch 2 which receives an adjacent line is also started by the forward fault, the switch 1 and the adjacent line are both started, and the directions are consistent, so that the fault is not between the switch 1 and the switch 2;
the switch 2 detects that the self forward fault starts, receives that the adjacent line switch 1 also starts in the forward fault, if the adjacent line switch 3 is not started, the start is inconsistent, the fault is judged to be between the switch 2 and the switch 3, and the fault removing action trips because of the self start;
when the switch 3 detects that the switch is not started, the adjacent line switch 2 is started in a forward fault mode, and the adjacent line switch 4 is not started, the starting is inconsistent, and the fault isolation action trips because the switch is not started;
after the fault removal action of the switch 2, if the switch trips successfully, the fault removal is considered to be successful, and if the switch 2 trips unsuccessfully, the switch 1 at the upper stage receives a fault removal failure signal, and the fault removal action is expanded; after the switch 3 is in fault isolation action, if the switch is tripped successfully, the fault isolation is considered to be successful, and if the switch 3 is tripped unsuccessfully, the next-stage switch 4 receives a fault isolation failure signal, and the fault isolation action is expanded;
after the fault removal action of the switch 2 or the switch 1 is successful, sending an operation load value Pflt before the fault of the line through multicast for communicating the switch for calculation and transfer; after the fault isolation action of the switch 3 or the switch 4 is successful, multicast-sending the isolation success information for connecting the switch to start self-healing;
s3.2, taking the case that the fault occurs at the lower end of the switch 7 as an example;
the switch 1 detects that the switch 1 is started by a forward fault, the switch 2 which receives an adjacent line is also started by the forward fault, the switch 1 and the adjacent line are both started, and the directions are consistent, so that the fault is not between the switch 1 and the switch 2;
the switch 2 detects that the switch is started by a forward fault, the switch 1 and the switch 3 which receive adjacent lines are started by the forward fault, the switch 1 and the adjacent lines are started, and the directions are consistent, so that the fault is not between the switch 1 and the switch 2, and is not between the switch 2 and the switch 3;
when the switch 3 detects that the fault of the switch is started in the forward direction, the adjacent line switch 2 is started in the forward direction, and the adjacent line switch 4 is not started, the fault is judged to be generated in the power distribution station 2, and meanwhile, a fault starting signal of the feeder line switch 7 is received, so that the fault does not act after the switch 7, and the action of the switch 7 is waited;
the switch 7 detects the self fault starting, and sets the self fault as a feeder switch, so that the fault is generated at the rear end of the switch, and the fault is removed due to the self starting;
after the switch 7 performs the fault clearing action, if the switch trips successfully, the fault clearing is considered to be successful, the self-healing is not required to be started, and the action is finished; if the switch 7 fails to trip, the switch 3 at the upper stage receives a fault trip failure signal, and the fault is enlarged and removed; the switch 4 receives a fault tripping failure signal, and the fault enlarges the isolation action;
after the fault amplification and removal action of the switch 3 is successful, sending an operation load value Pflt before the fault of the line through multicast for communicating the switch calculation and supply; after the switch 4 succeeds in fault expansion and isolation action, multicast-sending successful isolation information for connecting the switch to start self-healing;
s4, after the fault is removed and isolated, the interconnection switch is self-healed;
the self-healing of the interconnection switch is only suitable for the open-loop operation condition, and the self-healing is not needed after the fault is removed in the closed-loop operation;
s4.1, the interconnection switch 5/8/9 receives the information that the fault isolation is successful and the operation load value Pflt before the fault after the fault removal is successful, and in combination with the condition of single-side voltage loss of the switch, the single-side voltage loss of the switch 5 and the switch 8 starts interconnection self-healing switching judgment, and releases a signal for starting self-healing, and the switch 9 is not voltage loss and not started;
s4.2 the interconnection switch 5 subscribes to the residual capacities Plres 1 and Plres 2 of the interconnection switch 8/9, the Plres 1 of the interconnection switch 8 which starts self-healing is selected to be compared with Plres of the interconnection switch, and the Plres 2 does not participate in comparison because the switch 9 does not start self-healing; if Pllres > Pllres1, the tie switch 5 is selected and self-healing is started; otherwise, the self-healing is started by the interconnection switch 8 without starting the self-healing;
in the actual operation of S4.3, since the load is constantly changing, when Pllres ≈ Pllres1, the operation priorities Lp of the interconnection switch 5 and the switch 8 are compared, and if the priority of the switch 5 is high, the self-healing is performed by selecting the switch, and otherwise, the self-healing is performed by selecting the switch 8.
S5, fault location and isolation under the closed-loop condition;
when the closed loop operates, because the power supply can come from a plurality of directions, but the starting directions of the switches at two sides of a fault point are definitely inconsistent, or are opposite, or one side is started, and the other side is not started by weak feedback, the method disclosed by the invention is also applicable, the fault point can be judged, the fault can be rapidly removed, and the system operates in an open loop after removal.
The fault locating isolation and contact self-healing functions of the power distribution network are realized through the steps, the functions are realized without intervention of a main station, the fault self-healing function of the power distribution network can be quickly and accurately realized with fewer switching action times through interaction of peer-to-peer information of the dispersing device, the topological structure in the system can be identified, a more reasonable self-healing transfer supply scheme is selected by combining with contact switch information, and the operation stability of the system after power supply transfer is improved.
While the invention has been described in terms of its preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. A distribution network self-healing method based on peer-to-peer information interaction is characterized by comprising the following steps:
1) constructing a network, configuring GOOSE subscription and release information according to an actual operation topological relation, and establishing a line model;
2) calculating electrical information in real time, monitoring fault starting information in real time according to a power direction algorithm, and judging the fault direction at the fault moment; the head end incoming line switch calculates the residual capacity Pres according to the design load and the current load; the interconnection switch calculates the switch residual capacity Plres when the self-healing is started;
3) performing fault positioning judgment according to the starting information of the self and the adjacent line;
3.1) taking the current power supply trend as the positive direction, judging that a fault occurs between the switch and an adjacent line switch with inconsistent starting direction when the starting direction of the switch is inconsistent with the starting direction of the adjacent line switch, and recording the adjacent line as a fault adjacent line;
3.2) if the operation mode is closed-loop operation, the fault adjacent line is reversely started; if the operation mode is open-loop operation, the fault adjacent line is not started;
3.3) judging whether the fault is removed or isolated according to the self starting condition of the switch; if the switch is started in a fault, the switch is in a fault removal action, and if the switch is not started in a fault, the switch is in a fault isolation action;
3.4) after the fault removal action, if the switch is tripped successfully, the fault removal is considered to be successful, and if the switch is tripped unsuccessfully, the upper stage receives a fault removal failure signal, and the fault removal action is expanded; after the fault removal action is successful, sending the operation load value Pflt before the line fault through multicast, and using the operation load value Pflt to connect a switch for calculation and supply transfer;
3.5) after the fault isolation action, if the switch is tripped successfully, the fault isolation is considered to be successful, and if the switch is tripped unsuccessfully, the next stage receives a fault isolation failure signal, and the fault isolation action is expanded; after the fault isolation action is successful, multicast-sending isolation success information for connecting the switch to start self-healing;
4) after the fault is removed and isolated, if the operation mode is open-loop operation, the interconnection switch is self-healed;
4.1) the interconnection switch receives the information of successful fault isolation and the operation load value Pflt before the fault after the fault removal is successful, and the interconnection self-healing switching judgment is started and a self-healing starting signal is issued by combining the single-side voltage loss condition of the switch;
4.2) when a single interconnection switch is used, after interconnection self-healing is started, judging that the residual capacity Pres of a line with a pressure side subscribed by the switch is larger than the received operation load value Pflt before the fault, considering that supply can be switched, self-healing is started, and switching on after delay;
4.3) when a plurality of contact switches exist, the contact switch subscribes the residual capacities Plres 1-Plrens of other contact switches, the contact switch which starts self-healing is selected and compared with the contact switch Plres, and the contact switch which does not start self-healing rejects a comparison queue; if the residual capacity of the line is maximum, the interconnection switch is selected, and self-healing is started; otherwise, the self-healing is not started, and the interconnection switch with the largest residual capacity self-heals.
2. The distribution network self-healing method based on peer-to-peer information interaction according to claim 1, wherein: in the circuit model of step 1), a head-end switch subscribes direction starting information and switch refusing information of adjacent lines, and subscribes direction starting information and switch refusing information of a lower-level feeder line of the switch; releasing self direction starting information and switch failure information, and releasing the residual capacity Pres of the line calculated in real time;
the non-head-end section switch subscribes direction starting information and switch refusing information of adjacent lines, and subscribes direction starting information and switch refusing information of a lower-level feeder line of the switch; releasing self direction starting information and switch refusing information;
the feeder switch issues self direction starting information and switch refusing information without subscription;
the interconnection switch subscribes direction starting information and switch refusing information of adjacent lines, subscribes residual capacity Pres of line incoming switches at the head ends of buses and lines, and subscribes self-healing starting information, corresponding residual capacity during self-healing starting and interconnection action priority of other interconnection switches; and releasing self-healing starting information, the switch residual capacity Plres during self-healing starting and the communication action priority Lp.
3. The distribution network self-healing method based on peer-to-peer information interaction according to claim 1 or 2, characterized in that: in the process of constructing the network in the step 1), the constructed network is an FA communication network, and all devices are connected to an FA exchanger.
4. The distribution network self-healing method based on peer-to-peer information interaction according to claim 1, wherein: the residual capacity Pllres of the switch in the step 2) is the residual capacity Pres of the incoming line at the voltage side subscribed by the interconnection switch when the interconnection self-healing is started, that is, when the bus has voltage and the line has no voltage, the residual capacity Pllres of the switch is the residual capacity Pres of the incoming line at the bus side of the interconnection switch; when the bus is in voltage loss and the line has voltage, the residual capacity Pllres of the switch is the residual capacity Pres of the incoming line at the side of the interconnection switch line.
5. The distribution network self-healing method based on peer-to-peer information interaction according to claim 1, wherein: and 4) in the self-healing process of the interconnection switches, configuring the action priority of the interconnection switches, setting a range when comparing the residual capacity, and selecting the interconnection switch with the minimum action priority Lp, namely the interconnection switch with the highest priority for self-healing when the residual capacity of the outgoing line is not large.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865035A (en) * | 2021-01-19 | 2021-05-28 | 南方电网科学研究院有限责任公司 | Multicast communication-based line fault self-healing method and device |
| CN114123186A (en) * | 2021-11-26 | 2022-03-01 | 国网四川省电力公司泸州供电公司 | Self-healing optimization control method, system, terminal and medium based on intelligent power distribution network |
| CN114221326A (en) * | 2021-11-15 | 2022-03-22 | 云南电网有限责任公司昆明供电局 | Segmented switching strategy under insufficient switching power of centralized self-healing function |
| CN116316541A (en) * | 2022-10-31 | 2023-06-23 | 广东电网有限责任公司珠海供电局 | Power distribution network fault self-healing method for protecting control device and related device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429301A (en) * | 2015-12-17 | 2016-03-23 | 南京因泰莱电器股份有限公司 | Node analysis method-based self-healing control method for intelligent power distribution network |
| CN106786522A (en) * | 2016-12-16 | 2017-05-31 | 湖南世优电力科技股份有限公司 | Intelligent distribution network self-healing control method based on peer-to-peer communication network |
| CN107846015A (en) * | 2017-11-13 | 2018-03-27 | 湖南世优电力科技股份有限公司 | Intelligent distribution network load transfer optimal route selection method based on peer-to-peer communication |
| CN110365015A (en) * | 2019-07-26 | 2019-10-22 | 国电南瑞科技股份有限公司 | A kind of distribution network failure processing method and processing device based on distributed intelligence |
-
2020
- 2020-08-20 CN CN202010843725.2A patent/CN112134263B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429301A (en) * | 2015-12-17 | 2016-03-23 | 南京因泰莱电器股份有限公司 | Node analysis method-based self-healing control method for intelligent power distribution network |
| CN106786522A (en) * | 2016-12-16 | 2017-05-31 | 湖南世优电力科技股份有限公司 | Intelligent distribution network self-healing control method based on peer-to-peer communication network |
| CN107846015A (en) * | 2017-11-13 | 2018-03-27 | 湖南世优电力科技股份有限公司 | Intelligent distribution network load transfer optimal route selection method based on peer-to-peer communication |
| CN110365015A (en) * | 2019-07-26 | 2019-10-22 | 国电南瑞科技股份有限公司 | A kind of distribution network failure processing method and processing device based on distributed intelligence |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865035A (en) * | 2021-01-19 | 2021-05-28 | 南方电网科学研究院有限责任公司 | Multicast communication-based line fault self-healing method and device |
| CN112865035B (en) * | 2021-01-19 | 2023-03-03 | 南方电网科学研究院有限责任公司 | Multicast communication-based line fault self-healing method and device |
| CN114221326A (en) * | 2021-11-15 | 2022-03-22 | 云南电网有限责任公司昆明供电局 | Segmented switching strategy under insufficient switching power of centralized self-healing function |
| CN114221326B (en) * | 2021-11-15 | 2023-08-15 | 云南电网有限责任公司昆明供电局 | Segmented transfer method under condition of insufficient transfer capability of centralized self-healing function |
| CN114123186A (en) * | 2021-11-26 | 2022-03-01 | 国网四川省电力公司泸州供电公司 | Self-healing optimization control method, system, terminal and medium based on intelligent power distribution network |
| CN114123186B (en) * | 2021-11-26 | 2023-07-11 | 国网四川省电力公司泸州供电公司 | Self-healing optimization control method, system, terminal and medium based on intelligent power distribution network |
| CN116316541A (en) * | 2022-10-31 | 2023-06-23 | 广东电网有限责任公司珠海供电局 | Power distribution network fault self-healing method for protecting control device and related device |
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