CN107959591B - Setting method and device for adjusting and setting county and county - Google Patents
Setting method and device for adjusting and setting county and county Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
Abstract
The invention provides a setting method and a setting device for local and county adjustment, wherein the method comprises the following steps: acquiring a switching network topological graph in real time; accessing a target switch node through the mobile agent; collecting configuration protection information of all adjacent switch nodes; calculating the load importance of all adjacent switch nodes based on the configuration protection information; and if the load importance is greater than the preset threshold value, the protection layer level is increased, and the corresponding matching time is increased for a preset time. The setting method for adjusting and setting the prefecture and county is an extensible protection level, can extend the protection boundary to important users downstream and upwards cooperate with the transformer of the transformer substation to form a set of fixed values which are relatively fixed by taking the transformer of the transformer substation as a reference, has rich setting principles, considers the power consumption requirement of a user side, adapts to the construction of an intelligent distribution network, and solves the technical problems that the existing distribution network protection setting principle is single, the safe operation of the system side is seriously considered, and the user side is neglected.
Description
Technical Field
The invention relates to the technical field of distribution network protection, in particular to a setting method and device for adjusting and setting counties and counties.
Background
With the continuous deepening of the construction of a 'first-class power distribution network', the construction of the power distribution network is continuously pushed to a user side, and the problem of override tripping is easily caused by the original method of only leaving a first-class matching relationship to the user side at the downstream of a feeder line. However, the characteristics of requiring a fast protection action to remove a fault also make the two aspects contradictory as a system side operation safety consideration. Meanwhile, on the other hand, the automation degree of the distribution network is continuously improved, so that the setting principle is also required to be simplified and solidified as much as possible, so that the distribution automation strategy is realized to a greater extent. Based on the above, the best solution is to realize the modularization and immobilization of each scheme of the distribution protection setting principle, and realize the free switching among the schemes of each protection module through different requirements.
The existing power distribution protection ideas can be divided into two categories, one is to strengthen the construction of power distribution automation, and a wide-area-based protection strategy is formed through a large amount of information transmission, so that the protection reliability is established on the reliability and timeliness of network communication; on the other hand, based on the existing protection facilities, an improved protection method is found through limited communication assistance so as to improve the power supply quality and the power supply reliability of the distribution network. The latter method can ensure economy and reasonableness, and can still basically complete coordination and correct action between protections depending on local protection when a network is lost. The most economic and reasonable mode is to select a set of comprehensive schemes, namely, the fixation of the protection schemes is ensured, and the smooth switching between the schemes can be completed through simple command information transmission.
In summary, the existing distribution network protection setting principle is single, the safe operation of the system side is considered, and the problem of the user side is ignored.
Disclosure of Invention
In view of the above, the present invention provides a setting method and device for adjusting and setting a local area, so as to alleviate the technical problems that the existing distribution network protection and setting principle is single, the system side is considered to operate safely, and the user side is neglected.
In a first aspect, an embodiment of the present invention provides a method for setting prefecture and county adjustment, where the method includes:
acquiring a switching network topological graph in real time, wherein the switching network topological graph comprises a plurality of switching nodes;
accessing a target switch node through a mobile agent, wherein the target switch node is any one node in the switch network topological graph;
collecting configuration protection information of all adjacent switch nodes, wherein all the adjacent switch nodes are all switch nodes directly connected with the target switch node;
calculating the load importance of all adjacent switch nodes based on the configuration protection information;
and if the load importance is greater than a preset threshold value, the protection level is increased, the corresponding matching time is increased by a preset time length, and the protection level is less than 3.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where collecting configuration protection information of all adjacent switch nodes includes:
judging whether the out-degree number of the target switch node is 0 or not;
if the out degree is 0, terminating the access;
if the output degree is not 0, determining a lower-layer switch node directly connected with the target switch node;
taking the lower-layer switch node directly connected with the target switch node as all adjacent switch nodes;
and collecting configuration protection information of all adjacent switch nodes.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where if the load importance is not greater than a preset threshold, the protection level is not increased, and the corresponding matching time is not changed.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein calculating the load importance of all adjacent switch nodes based on the configuration protection information includes:
assigning weights to all adjacent switch nodes;
calculating the weight sum of all adjacent switch nodes;
and taking the weight sum of all adjacent switch nodes as the load importance of all adjacent switch nodes.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the mobile agent includes ID information, and the mobile agent automatically disappears after the mobile agent completes a task.
In a second aspect, an embodiment of the present invention further provides a setting device for adjusting settings, where the device includes:
the system comprises an acquisition module, a switching network topology map generation module and a switching node selection module, wherein the acquisition module is used for acquiring the switching network topology map in real time, and the switching network topology map comprises a plurality of switching nodes;
the access module is used for accessing a target switch node through a mobile agent, wherein the target switch node is any one node in the switch network topological graph;
the collecting module is used for collecting configuration protection information of all adjacent switch nodes, wherein all the adjacent switch nodes are all switch nodes directly connected with the target switch node;
the calculation module is used for calculating the load importance of all the adjacent switch nodes based on the configuration protection information;
and the first result output module is used for increasing the protection level and increasing the corresponding matching time by a preset time length if the load importance is greater than a preset threshold, wherein the protection level is less than 3.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the collection module includes:
the judging unit is used for judging whether the out-degree number of the target switch node is 0 or not;
a termination access unit which terminates the access if the output number is 0;
a determining unit, configured to determine a lower switch node directly connected to the target switch node if the output degree is not 0;
the first setting unit is used for taking a lower-layer switch node directly connected with the target switch node as all adjacent switch nodes;
and the collecting unit is used for collecting the configuration protection information of all the adjacent switch nodes.
With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where the apparatus further includes:
and the second result output module is used for not increasing the protection level and not changing the corresponding matching time if the load importance is not greater than a preset threshold value.
With reference to the second aspect, an embodiment of the present invention provides a third possible implementation manner of the second aspect, where the calculating module includes:
the assignment unit is used for assigning weights to all the adjacent switch nodes;
the computing unit is used for computing the weight sum of all the adjacent switch nodes;
and the second setting unit is used for taking the weight sum of all adjacent switch nodes as the load importance of all adjacent switch nodes.
With reference to the second aspect, an embodiment of the present invention provides a fourth possible implementation manner of the second aspect, where the mobile agent includes ID information, and the mobile agent automatically disappears after the mobile agent completes the task.
The embodiment of the invention has the following beneficial effects: the embodiment of the invention provides a method and a device for setting local and county adjustment, wherein the method comprises the following steps: acquiring a switching network topological graph in real time, wherein the switching network topological graph comprises a plurality of switching nodes; accessing a target switch node through the mobile agent, wherein the target switch node is any one node in a switch network topological graph; collecting configuration protection information of all adjacent switch nodes, wherein all the adjacent switch nodes are all switch nodes directly connected with a target switch node; calculating the load importance of all adjacent switch nodes based on the configuration protection information; and if the load importance is greater than the preset threshold value, the protection layer level is increased, the corresponding matching time is increased for a preset time length, and the protection layer level is less than 3.
In the existing distribution network protection, the safe operation of a system side is mainly considered, the problem of a user side is ignored, and the protection layer level is single. Compared with the existing distribution network protection, the embodiment of the invention provides a setting method for adjusting and setting the county, which comprises the steps of firstly obtaining a switch network topological graph in real time, then accessing a target switch node through a mobile agent, collecting configuration protection information of all adjacent switch nodes, calculating the load importance of all adjacent switch nodes based on the configuration protection information, and finally increasing the protection layer level and the corresponding matching time by a preset duration if the load importance is greater than a preset threshold value. The setting method for adjusting and setting the prefecture and county is an extensible protection level, can extend the protection boundary to important users downstream and upwards cooperate with the transformer of the transformer substation to form a set of fixed values which are relatively fixed by taking the transformer of the transformer substation as a reference, has rich setting principles, considers the power consumption requirement of a user side, adapts to the construction of an intelligent distribution network, and solves the technical problems that the existing distribution network protection setting principle is single, the safe operation of the system side is seriously considered, and the user side is neglected.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a setting method for adjusting and setting prefectures and counties according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a hierarchical distribution of a protection scheme based on matching boundary scalability according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a protection scheme based on cooperative boundary extension according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for collecting configuration protection information of all neighboring switch nodes according to an embodiment of the present invention;
FIG. 5(a) is a schematic diagram of a connection diagram G provided in an embodiment of the present invention;
FIG. 5(b) is the sequential adjacency list of FIG. G as provided by an embodiment of the present invention;
FIG. 5(c) is the neighbor chain adjacency list of FIG. G provided by the embodiment of the present invention;
fig. 6 is a flowchart for calculating load importance of all neighboring switch nodes based on configuration protection information according to an embodiment of the present invention;
fig. 7 is a block diagram of a setting device for adjusting settings in county and place according to an embodiment of the present invention.
Icon:
11-an acquisition module; 12-an access module; 13-a collection module; 14-a calculation module; 15-first result output module.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For facilitating understanding of the present embodiment, a detailed description will be given of a setting method of local and county adjustment disclosed in the embodiments of the present invention.
The first embodiment is as follows:
a setting method of prefecture and county adjustment setting, referring to fig. 1, the method comprising:
s102, acquiring a switching network topological graph in real time, wherein the switching network topological graph comprises a plurality of switching nodes;
in the embodiment of the invention, the execution subject of the method is an integrated system for adjusting and setting the county and the county, namely a platform for protecting the distribution network. The switching network topological graph can be obtained after the network is erected and stored in a network topological database, the network topological graph is not invariable, and when the network structure is changed, the switching network topological graph can be refreshed in real time.
S104, accessing a target switch node through the mobile agent, wherein the target switch node is any one node in a switch network topological graph;
the research hotspot mobile agent serving as distributed intelligent calculation is undoubtedly a better choice in the setting method of the regional and county adjustment. The method has the advantages of initiative, sociality (agent intercommunication) and adaptability to the environment, and is suitable for the characteristic of distributed calculation and judgment of the power grid. The scheme realizes the extensible setting integration scheme of the matching boundary through the technology.
Specifically, when performing access, access is generally performed from the feeder switch, which is used as an initial stage of protection configuration, and then access is performed along the switch network topology through the mobile agent, that is, the target switch node is initially the feeder switch, which is not specifically limited in the embodiment of the present invention.
S106, collecting configuration protection information of all adjacent switch nodes, wherein all the adjacent switch nodes are all switch nodes directly connected with the target switch node;
the configuration protection is set by a user, when the configuration protection exists, the configuration protection is set to be 1, and when the configuration protection does not exist, the configuration protection is set to be 0.
S108, calculating the load importance of all adjacent switch nodes based on the configuration protection information;
this load importance is related to all adjacent switch nodes with configuration protection, as will be described in detail below.
And S110, if the load importance is greater than a preset threshold value, increasing the protection layer level, and increasing the corresponding matching time by a preset time length, wherein the protection layer level is less than 3.
The preset threshold is also set by the user, the embodiment of the invention does not specifically limit the preset threshold, if the load importance is greater than the preset threshold, the protection layer level is increased, and the corresponding matching time is increased by the preset duration.
In the existing distribution network protection, the safe operation of a system side is mainly considered, the problem of a user side is ignored, and the protection layer level is single. Compared with the existing distribution network protection, the embodiment of the invention provides a setting method for adjusting and setting the county, which comprises the steps of firstly obtaining a switch network topological graph in real time, then accessing a target switch node through a mobile agent, collecting configuration protection information of all adjacent switch nodes, calculating the load importance of all adjacent switch nodes based on the configuration protection information, and finally increasing the protection layer level and the corresponding matching time by a preset duration if the load importance is greater than a preset threshold value. The setting method for adjusting and setting the prefecture and county is an extensible protection level, can extend the protection boundary to important users downstream and upwards cooperate with the transformer of the transformer substation to form a set of fixed values which are relatively fixed by taking the transformer of the transformer substation as a reference, has rich setting principles, considers the power consumption requirement of a user side, adapts to the construction of an intelligent distribution network, and solves the technical problems that the existing distribution network protection setting principle is single, the safe operation of the system side is seriously considered, and the user side is neglected.
The protection scheme hierarchical distribution is first introduced below:
this is a three-level schematic of the mating of the feeder downstream distribution switch with the mating boundary extended as shown in fig. 2. this mode is primarily to allow for the exit of the transient action segment of the feeder switch ②, leaving a mating time step difference to the downstream distribution switch ③ so that no step-trip condition occurs when a downstream fault occurs, specifically when a fault occurs downstream of ③, ta3Small, then the consumer distribution switch ③ trips first and the feeder switch ② trips over a coordinated time, avoiding a trip condition when a downstream fault occurs.
However, in the present situation, whether to exit the transient period is a trade-off problem for the power system, and whether to exit the transient period should be selected according to different situations in consideration of the stable and safe operation of the system and the fault impact resistance of the equipment, particularly the transformer. As shown in FIG. 2, the currently widely conservative two-step matching system is adopted, as shown by the black marked part on the time scale in the figure, and t exists at the momenta2＝ta30. When such a t is adopteda2＝ta30When a fault occurs downstream of ③, because of ta2＝ta30Therefore, feeder switch ② and useThe household power distribution switch ③ trips simultaneously, which is the case of step tripping.
In order to utilize the characteristics of the mobile agent, the corresponding power grid characteristics are redefined. In the protection of the power grid, firstly, a fault device is accurately judged, and the device is cut off from the power grid as a minimum unit. However, as the distribution network is used as the last stage of the power grid, the feeder line of the transformer substation and the downstream user side protection cannot be distinguished, and the protection strategy can only be tripped simultaneously after a fault, namely, the protection strategy is cut off as the same fault object. And under the condition that a user side is provided with a breaker, a corresponding switch and protection, the protection matching boundary can extend downwards, and a certain matching space is reserved for the feeder line to form a hierarchical matching protection relationship, so that the fault is isolated by the minimum hierarchy and the minimum fault power failure area. The key is how to analyze the power grid topological structure by switch configuration and related protection properties to form a protection scheme with information capable of being flexibly integrated according to the characteristics of graphs.
As shown in fig. 3, for lines with short supply radius, the protection coordination is carried out using the conventional protection configuration (i.e. step trip), i.e. the instantaneous section of the feeder switch is preserved, the coordination boundary up to this point. For a line with a long power supply radius, the matching with a downstream branch holder is considered, and one-stage or two-stage matching level difference is reserved to form a complete matching relation. So as to achieve the purpose of accurately removing the fault as much as possible when the fault occurs. Of course, the level difference coordination should also take into account the economic benefits of users, the level of system equipment, the requirements of special loads, etc. to make comprehensive judgment.
Therefore, how to advance the protection boundary is achieved through comprehensive analysis of information and command transmission. From the perspective of information processing and integration, it can be considered that a hierarchical structure is performed by topology analysis and related protection configuration levels, then the points with branch protection configurations are divided according to their importance degrees by their load properties, and then weighted values are formed, and the hierarchical division of protection is determined by these weighted values. Particularly in the form of a distribution of network information nodes.
The above description describes the overall process of the setting method of the prefecture and county adjustment setting, and the details of the specific contents are described below.
Alternatively, referring to fig. 4, collecting configuration protection information of all adjacent switch nodes includes:
s401, judging whether the out-degree number of the target switch node is 0 or not;
as shown in fig. 5(a), 5(b), and 5(c), for TEs distributed in each switch, a sequential adjacency list is stored in the database in which the nodes of the switch are directly connected, starting from the node and pointing to the destination node. For example, in fig. 5, a node with a node number of 4 has two connected target nodes, namely 2 nodes and 3 nodes. The information in the Ri rows can be represented by bit vectors, storing for each TE only the node connection graph associated with itself, so that each node corresponds to only one row vector. The first bit is the node number, the second bit is the number of connected branches (i.e., degrees), and the third bit is the specific node number that is connected. And (3) creating a vector by using a java.util packet in the JAVA class library, wherein the vector has three dimensions, the third dimension is an example object of the vector with the actual connecting node as each dimension, and the dimension is determined by the degree parameter of the second dimension. When the network structure of the system changes, namely when the connection degree and the connection node corresponding to the switch change, the degree is increased or decreased by one when a new node is connected or a node is decreased, and the degree is matched with the real-time structure of the network.
For 5(a), when the target switch node is 3, the output degree is 2, and the switch node 1 and the switch node 3 correspond to each other; when the target switch node is 2, the output degree is 4, and the switch node 1, the switch node 3, the switch node 4 and the switch node 5 (i.e., the lower switch node) correspond to each other.
S402, if the output degree is 0, stopping access;
s403, if the output degree is not 0, determining a lower-layer switch node directly connected with the target switch node;
taking a target switch node as 3 as an example for explanation, the lower layer switch nodes directly connected with the target switch node are a switch node 1 and a switch node 4 respectively.
S404, taking the lower-layer switch nodes directly connected with the target switch node as all adjacent switch nodes;
switch node 1 and switch node 4 are all adjacent switch nodes to target switch node 3.
And S405, collecting configuration protection information of all adjacent switch nodes.
Specifically, the configuration protection information is set by the user, and is set to 1 if there is configuration protection, and is set to 0 if there is no configuration protection. Configuration protection information for switch node 1 and switch node 4 is collected.
Alternatively, referring to fig. 6, calculating the load importance of all neighboring switch nodes based on the configuration protection information includes:
s601, assigning weights to all adjacent switch nodes;
specifically, the assignment of the weight value is set by the user.
S602, calculating the weight sum of all adjacent switch nodes;
and S603, taking the weight sum of all adjacent switch nodes as the load importance of all adjacent switch nodes.
And if the load importance is greater than the preset threshold value, the protection layer level is increased, the corresponding matching time is increased for a preset time length, and the protection layer level is less than 3.
If the load importance exceeds a preset threshold value, the level of the upper protection layer rises, and the corresponding matching time is added with delta T. Specifically, as shown in fig. 5(a), for the target switch node 3, the requirement of configuration protection is finally met (the load importance is greater than the preset threshold), then, the protection level is added by level 1, and the matching time corresponding to the upper protection level (i.e., level 2) is increased by the preset time length.
Optionally, the mobile agent includes ID information, and the mobile agent automatically disappears after the mobile agent completes the task.
In order to meet the analysis requirement of real-time performance, when the analysis agent at the host determines the failure switch, it will generate a mobile agent, and in order to avoid the time for searching the target server, the analysis agent at the host gives the address (ID) of the target server of the dynamic agent, and the setting of this path can be implemented by registering in the mobile agent manager. And uses this as the ID (unique identification) of the task of moving agent. The OPERATION content (OPERATION) is written in the content of the mobile agent (content). And when the mobile agent reaches the target server, performing corresponding analysis by using local data resources according to the task requirement of the mobile agent. Here, it is necessary to know that the current node is directly connected to each branch switch, and then use the local database to transmit the trip command to each point in the database whose contents meet the requirements. Here, each TE is required to have a database storage resource directly connected to the node, and because the TE is directly related to its own switch, it occupies a limited memory resource. After the task is completed, the mobile agent only needs to send back a message that the work is successfully completed to the host where the manager is located, the manager logs out the task according to the ID, the mobile agent automatically disappears, and the host and the garbage collector of each TE recycle the task and release the utilized internal resources. The ID is a unique identifier of a mobile agent, and throughout the life cycle from its generation to disappearance, it registers this identifier and distinguishes it from other agents regardless of its movement to any point in the network. It is also noted here that the system database of the host or the network topology database related to the switch of each TE is a permanent database (persistent) and is refreshed in real time due to the change of the network structure, but does not disappear. Unlike the mobile agent (instant) properties generated by the above analysis.
The setting method for adjusting and setting the county and the county is obtained by collecting and analyzing the mobile agent according to the topological information of the system, so that the given strategy is an extensible protection level, the original protection boundary is extended to important users downstream and matched with a transformer substation upwards to form a set of fixed values which are relatively fixed by taking the transformer substation as a reference; meanwhile, the boundary switch, the intermediate switch of the long line and the corresponding protection section are matched, and the characteristic that the matching selectivity cannot be guaranteed due to the fact that the original protection scheme depends on the line length and is influenced by the operation mode is overcome.
Example two:
a setting apparatus of prefecture and county adjustment setting, referring to fig. 7, the apparatus comprising:
the acquisition module 11 is configured to acquire a switching network topology map in real time, where the switching network topology map includes a plurality of switching nodes;
the access module 12 is configured to access a target switch node through the mobile agent, where the target switch node is any one node in the switch network topology;
the collecting module 13 is configured to collect configuration protection information of all adjacent switch nodes, where all adjacent switch nodes are all switch nodes directly connected to the target switch node;
a calculation module 14, configured to calculate load importance of all adjacent switch nodes based on the configuration protection information;
and if the load importance is greater than the preset threshold, the first result output module 15 increases the protection layer level, and increases the corresponding matching time by a preset duration, wherein the protection layer level is less than 3.
The embodiment of the invention provides a setting device for adjusting and setting a region and a county, which comprises the steps of firstly obtaining a switch network topological graph in real time, then accessing a target switch node through a mobile agent, collecting configuration protection information of all adjacent switch nodes, calculating load importance of all adjacent switch nodes based on the configuration protection information, and finally increasing a protection layer level and increasing a preset duration corresponding to matching time if the load importance is greater than a preset threshold value. The setting device for adjusting and setting prefectures and counties is an extensible protection level, can extend protection boundaries to important users downstream and upwards cooperate with a transformer of a transformer substation to form a set of fixed values which are relatively fixed by taking the transformer of the transformer substation as a reference, has rich setting principles, considers the power consumption requirement of a user side, adapts to the construction of an intelligent distribution network, and solves the technical problems that the existing distribution network protection setting principle is single, the safe operation of the system side is seriously considered, and the user side is neglected.
Optionally, the collection module comprises:
the judging unit is used for judging whether the out-degree number of the target switch node is 0 or not;
an access termination unit for terminating the access if the output number is 0;
the determining unit is used for determining a lower-layer switch node directly connected with the target switch node if the output degree is not 0;
the first setting unit is used for taking the lower-layer switch node directly connected with the target switch node as all adjacent switch nodes;
and the collecting unit is used for collecting configuration protection information of all adjacent switch nodes.
Optionally, the apparatus further comprises:
and if the load importance is not greater than the preset threshold, the protection level is not increased, and the corresponding matching time is not changed.
Optionally, the calculation module comprises:
the assignment unit is used for assigning weights to all adjacent switch nodes;
the computing unit is used for computing the weight sum of all adjacent switch nodes;
and the second setting unit is used for taking the sum of the weights of all adjacent switch nodes as the load importance of all adjacent switch nodes.
Optionally, the mobile agent includes ID information, and the mobile agent automatically disappears after the mobile agent completes the task.
The computer program product of the setting method and device for prefecture and county adjustment provided by the embodiments of the present invention includes a computer-readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiments, and specific implementation may refer to the method embodiments, and will not be described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A setting method of prefecture and county adjustment setting, characterized by comprising:
acquiring a switching network topological graph in real time, wherein the switching network topological graph comprises a plurality of switching nodes;
accessing a target switch node through a mobile agent, wherein the target switch node is any one node in the switch network topological graph;
collecting configuration protection information of all adjacent switch nodes, wherein all the adjacent switch nodes are all switch nodes directly connected with the target switch node, and the configuration protection information is used for representing whether the corresponding switch nodes have configuration protection or not;
calculating the load importance of all adjacent switch nodes based on the configuration protection information;
and if the load importance is greater than a preset threshold value, the protection layer level is increased, the corresponding coordination time is increased for a preset time length, wherein the protection layer level is less than 3, and the coordination time refers to the extension time for starting trip protection between the protection layer levels.
2. The method of claim 1, wherein collecting configuration protection information for all adjacent switching nodes comprises:
judging whether the out-degree number of the target switch node is 0 or not;
if the out degree is 0, terminating the access;
if the output degree is not 0, determining a lower-layer switch node directly connected with the target switch node;
taking the lower-layer switch node directly connected with the target switch node as all adjacent switch nodes;
and collecting configuration protection information of all adjacent switch nodes.
3. The method according to claim 1, wherein if the load importance is not greater than a preset threshold, the protection level is not increased and the corresponding fitting time is not changed.
4. The method of claim 1, wherein calculating the load importance of all neighboring switch nodes based on the configuration protection information comprises:
assigning weights to all adjacent switch nodes based on the configuration protection information;
calculating the weight sum of all adjacent switch nodes;
and taking the weight sum of all adjacent switch nodes as the load importance of all adjacent switch nodes.
5. The method of claim 1,
the mobile agent contains ID information, and the mobile agent automatically disappears after the mobile agent completes a task.
6. A setting apparatus of a prefecture and county adjustment setting, the apparatus comprising:
the system comprises an acquisition module, a switching network topology map generation module and a switching node selection module, wherein the acquisition module is used for acquiring the switching network topology map in real time, and the switching network topology map comprises a plurality of switching nodes;
the access module is used for accessing a target switch node through a mobile agent, wherein the target switch node is any one node in the switch network topological graph;
the collecting module is used for collecting configuration protection information of all adjacent switch nodes, wherein all the adjacent switch nodes are all switch nodes directly connected with the target switch node, and the configuration protection information is used for representing whether configuration protection exists in the corresponding switch node;
the calculation module is used for calculating the load importance of all the adjacent switch nodes based on the configuration protection information;
and the first result output module is used for increasing the protection layer level and increasing the corresponding coordination time by a preset time length if the load importance is greater than a preset threshold, wherein the protection layer level is less than 3, and the coordination time refers to the extension time for starting trip protection between the protection layer levels.
7. The apparatus of claim 6, wherein the collection module comprises:
the judging unit is used for judging whether the out-degree number of the target switch node is 0 or not;
a termination access unit which terminates the access if the output number is 0;
a determining unit, configured to determine a lower switch node directly connected to the target switch node if the output degree is not 0;
the first setting unit is used for taking a lower-layer switch node directly connected with the target switch node as all adjacent switch nodes;
and the collecting unit is used for collecting the configuration protection information of all the adjacent switch nodes.
8. The apparatus of claim 6, further comprising:
and the second result output module is used for not increasing the protection level and not changing the corresponding matching time if the load importance is not greater than a preset threshold value.
9. The apparatus of claim 6, wherein the computing module comprises:
the assignment unit is used for assigning weights to all the adjacent switch nodes based on the configuration protection information;
the computing unit is used for computing the weight sum of all the adjacent switch nodes;
and the second setting unit is used for taking the weight sum of all adjacent switch nodes as the load importance of all adjacent switch nodes.
10. The apparatus of claim 6,
the mobile agent contains ID information, and the mobile agent automatically disappears after the mobile agent completes a task.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101938117A (en) * | 2010-10-14 | 2011-01-05 | 山东大学 | Current differential protection method for smart distribution network |
| CN105356432A (en) * | 2015-11-30 | 2016-02-24 | 江苏省电力公司盐城供电公司 | Multi-linked distribution network fault power-losing area topology identification system and method based on Multi-Agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101938117A (en) * | 2010-10-14 | 2011-01-05 | 山东大学 | Current differential protection method for smart distribution network |
| CN105356432A (en) * | 2015-11-30 | 2016-02-24 | 江苏省电力公司盐城供电公司 | Multi-linked distribution network fault power-losing area topology identification system and method based on Multi-Agent |
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