CN115459272A - Minimum distribution sub-network dividing method and system based on feeder switch information array - Google Patents
Minimum distribution sub-network dividing method and system based on feeder switch information array Download PDFInfo
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Abstract
The invention provides a minimum distribution sub-network dividing method and a minimum distribution sub-network dividing system based on a feeder switch information array, wherein a feeder switch information array model is established to describe the information of a connection switch associated with a distribution feeder outgoing switch and a feeder; establishing an outgoing switch information array to describe the corresponding relation between the outgoing switch and the feeder of the distribution feeder; establishing a set formed by a minimum distribution network outgoing switch which can transfer load to a target feeder line and is described by a minimum distribution sub-network information array model; and acquiring a single feeder switch contact information set, performing collective operation, and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, so that minimum distribution sub-network division is realized. According to the invention, the power distribution network is divided into the minimum power distribution sub-networks which are mutually associated, so that the whole network analysis in load transfer is converted into sub-network analysis, the search scale of the power distribution network is compressed, and the calculation analysis efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of distribution subnet division, and particularly relates to a minimum distribution subnet division method and system based on a feeder switch information array.
Background
With the rapid development of economy, people have higher and higher requirements on power supply reliability and lower tolerance on power failure. And the power has penetrated into all corners of national economy, and the long-term continuous power supply is a strong foundation stone for ensuring the social stability and economic development.
The power distribution network is in the middle links of power generation, power transmission, power transformation, power distribution and power utilization, and is an important network related to power supply safety of thousands of households. The current Distribution Automation Systems (DAS) have realized considerable, measurable, adjustable, controllable to medium voltage 10kV distribution networks. The data acquisition and real-time monitoring of the equipment such as the feeder line of the power distribution network, the power distribution switch equipment, the isolation switch equipment, the disconnecting link equipment and the distribution transformer are realized. Meanwhile, a large number of relay protection devices are configured in the power distribution network, so that tripping protection and reclosing power transmission of faults are realized, and assistance is provided for safe and reliable operation of the power distribution network. Current distribution automation system can realize functions such as perception to the trouble, the study and judge of trouble, the isolation of trouble, the switching of load, salvage the compound electricity through feeder automation function, has greatly promoted the automation level of distribution network, has promoted the power supply reliability of distribution network.
However, due to the fact that the operation and maintenance degree of the power distribution terminal is insufficient, the shortage cannot be eliminated in time; the quality of a pattern model of the power distribution network is not high, and the pattern model is not timely; the feeder automation systems in all regions have different running states due to various reasons such as poor topology quality of the power distribution network and low equipment association accuracy, the regions with good running effect can achieve full fault self-healing, and the feeder automation systems completely perform fault sensing, fault study and judgment, fault positioning, fault isolation and load transfer, and disordered manual intervention. In areas with poor operation effects, a feeder automation system cannot be started for fault sensing, and fault handling is not always mentioned. For the areas with good operation effects, the load transfer is performed after the existing distribution network feeder automation system senses the fault, and the load transfer is performed on the whole distribution network, so that the calculation burden of the distribution network feeder automation system is greatly increased, and the analysis efficiency of the load transfer is reduced.
Disclosure of Invention
In view of this, the invention aims to solve the problem that the existing distribution network feeder automation system performs load transfer after sensing a fault and aims at the whole distribution network, so that the analysis efficiency of the load transfer is low.
In order to solve the technical problems, the invention provides the following technical scheme:
in a first aspect, a minimum distribution sub-network partitioning method based on a feeder switch information array includes the following steps:
establishing a feeder switch information array model to describe the information of the interconnection switch related to the power distribution feeder outgoing switch and the feeder;
establishing an outgoing switch information array to describe the corresponding relation between a distribution feeder outgoing switch and a feeder;
establishing a set formed by a minimum distribution network outgoing switch for the minimum distribution subnet information array model description to transfer the target feeder load;
and acquiring a single feeder switch contact information set, performing collective operation, and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, so that minimum distribution sub-network division is realized.
Further, the feeder switch information array model is specifically as follows:
in the formula, FSIM is a feeder switch information array model, FS i1 Unique identification information, FS, of a feeder outgoing switch of a feeder i ij Unique identification information of the jth interconnection switch of the ith feeder line, wherein i =1,2, ·, n, j =2,3, …, m, n is the number of feeder lines of the power distribution network, m is the maximum interconnection switch number associated with the feeder line, and if FS is used, the number of the jth interconnection switch is the maximum number of the interconnection switches associated with the feeder line ij And if not, it is represented by-1.
Further, the outgoing switch information array is specifically as follows:
wherein CFIM is an outgoing switch information array, CF i1 Is the unique identifier of the outgoing switch of the ith feeder line, CF i2 Is uniquely identified for the ith feeder line, and
。
further, the minimum distribution sub-network information array model is specifically as follows:
wherein MDIM is minimum distribution sub-network information array model, MD ib Unique identification of the b-th feeder in the minimum distribution sub-network associated with the ith feeder, b =1,2, …, v, v is the maximum number of feeders contained in all minimum distribution sub-networks, and MD is the maximum number of feeders contained in all minimum distribution sub-networks ii For the ith feeder itself in the smallest distribution sub-network, when MD is ib When not present, is represented by-1.
Further, acquiring a single feeder switch contact information set, performing collective operation, and generating a minimum distribution sub-network information array according to a feeder switch information array model and an outgoing line switch information array, specifically comprising:
selecting the ith row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS i ：
Obtaining FS from outlet switch information matrix CFIM i1 And the associated feeder line information is written into the minimum distribution sub-network information array MDIM, namely:
selecting a row a from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS a ：
Wherein a =1,2,3 …, n, a ≠ i;
contact information set SFCS of single feeder switch i And SFCS a Performing operation comparison, and if the two sets have the same elements, acquiring FS from the outlet switch information array CFIM a1 Associated feeder CF a2 And combining CF a2 Writing into the next column of elements in the minimum distribution sub-network information array MDIM, namely:
where e =2,3., v, v is the maximum number of feeders contained in all minimum distribution sub-networks;
for each single feeder switch contact information set SFCS i Traversing all other single feeder switch contact information sets from the feeder switch information array FSIM and carrying out operation comparison until all the associated feeder information is relatedAnd writing the data into the corresponding minimum power distribution sub-network information array so as to obtain the minimum power distribution sub-network information array of the power distribution network.
In a second aspect, the present invention provides a minimum distribution sub-network partitioning system based on a feeder switch information array, including:
the first model building unit is used for building a feeder switch information array model to describe the information of the interconnection switch related to the distribution feeder outgoing switch and the feeder;
the second model building unit is used for building a corresponding relation between an outgoing switch information array description distribution feeder outgoing switch and a feeder;
the third model building unit is used for building a set formed by the minimum distribution network outgoing line switches for the minimum distribution sub-network information array model description to transfer the target feeder load;
and the minimum distribution sub-network dividing unit is used for acquiring the single feeder switch contact information set, performing set operation, and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, so that the minimum distribution sub-network division is realized.
Further, in the first model building unit, the feeder switch information array model is specifically as follows:
in the formula, FSIM is a feeder switch information array model, FS i1 Unique identification information, FS, of a feeder outgoing switch of a feeder i ij Unique identification information of the jth interconnection switch of the ith feeder line, wherein i =1,2, ·, n, j =2,3, …, m, n is the number of feeder lines of the power distribution network, m is the maximum number of interconnection switches associated with the feeder line, if FS is the maximum number of interconnection switches associated with the feeder line ij Absent, it is represented by-1.
Further, in the second model building unit, the outgoing switch information array is specifically as follows:
in the formula, CFIM is the information array of the outgoing line switch, CF i1 Is the unique identifier of the outgoing switch of the ith feeder line, CF i2 Is uniquely identified for the ith feeder line, and
。
further, in the third model building unit, the minimum distribution sub-network information array model is specifically as follows:
wherein MDIM is minimum distribution sub-network information array model, MD ib Unique identification of the b-th feeder in the minimum distribution sub-network associated with the ith feeder, b =1,2, …, v, v is the maximum number of feeders contained in all minimum distribution sub-networks, and MD is the maximum number of feeders contained in all minimum distribution sub-networks ii For the ith feeder itself in the smallest distribution sub-network, when MD is ib When not present, is represented by-1.
Further, acquiring a single feeder switch contact information set, performing a set operation, and generating a minimum distribution sub-network information array according to a feeder switch information array model and an outgoing line switch information array, specifically including:
selecting ith row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS i ：
Obtaining FS from outlet switch information matrix CFIM i1 And (3) associating feeder information, and writing the feeder information into a minimum distribution sub-network information array (MDIM), namely:
selecting the a-th row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS a ：
Wherein a =1,2,3 …, n, a ≠ i;
single feeder switch contact information set SFCS i And SFCS a Performing operation comparison, and if the two sets have the same element, acquiring FS from the outlet switch information array CFIM a1 Associated feeder CF a2 And CF a2 Writing into the next column of elements in the minimum distribution sub-network information array MDIM, namely:
where e =2,3., v, v is the maximum number of feeders contained in all minimum distribution sub-networks;
for each single feeder switch contact information set SFCS i Traversing all other single feeder switch contact information sets from the feeder switch information array FSIM, and carrying out operation comparison until all the associated feeder information is written into the corresponding minimum distribution sub-network information array, thereby obtaining the minimum distribution sub-network information array of the power distribution network.
In summary, the invention provides a minimum distribution sub-network dividing method and system based on a feeder switch information array, which comprises establishing a feeder switch information array model to describe the information of a connection switch associated with a distribution feeder outlet switch and a feeder; establishing an outgoing switch information array to describe the corresponding relation between the outgoing switch and the feeder of the distribution feeder; establishing a set formed by a minimum distribution network outgoing switch which can transfer load to a target feeder line and is described by a minimum distribution sub-network information array model; and acquiring a single feeder switch contact information set, performing collective operation, and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, so that minimum distribution sub-network division is realized. According to the invention, the power distribution network is divided into the minimum power distribution sub-networks which are mutually associated, so that the whole network analysis in load transfer is converted into sub-network analysis, the search scale of the power distribution network is compressed, and the calculation analysis efficiency is improved.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a minimum distribution sub-network partitioning method based on a feeder switch information array according to an embodiment of the present invention;
fig. 2 is a typical distribution network feeder diagram according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Due to the fact that the operation and maintenance degree of the power distribution terminal is insufficient, the defects cannot be eliminated in time; the quality of a pattern model of the power distribution network is not high, and the pattern model is not timely; the feeder automation systems in all regions have different running states due to various reasons such as poor topology quality of the power distribution network and low equipment association accuracy, the regions with good running effect can achieve full fault self-healing, and the feeder automation systems completely perform fault sensing, fault study and judgment, fault positioning, fault isolation and load transfer, and disordered manual intervention. In areas with poor operation effects, a feeder automation system cannot be started for fault sensing, and fault handling is not always mentioned. For the areas with good operation effects, the load transfer is performed after the existing distribution network feeder automation system senses the fault, and the load transfer is performed on the whole distribution network, so that the calculation burden of the distribution network feeder automation system is greatly increased, and the analysis efficiency of the load transfer is reduced.
Based on the method, the invention provides a minimum distribution sub-network dividing method and a minimum distribution sub-network dividing system based on a feeder switch information array.
The following describes an embodiment of the minimum distribution sub-network partitioning method based on the feeder switch information array according to the present invention in detail.
Referring to fig. 1, the present embodiment provides a minimum distribution sub-network dividing method based on a feeder switch information array, including the following steps:
s100: and establishing a feeder switch information array model to describe the information of the interconnection switch related to the power distribution feeder outgoing switch and the feeder.
It should be noted that the feeder switch information array model is specifically as follows:
in the formula, FSIM is a feeder switch information array model, FS i1 Unique identification information, FS, of a feeder outgoing switch of a feeder i ij Unique identification information of the jth interconnection switch of the ith feeder line, wherein i =1,2, ·, n, j =2,3, …, m, n is the number of feeder lines of the power distribution network, m is the maximum interconnection switch number associated with the feeder line, and if FS is used, the number of the jth interconnection switch is the maximum number of the interconnection switches associated with the feeder line ij Absent, it is represented by-1.
S200: and establishing an outgoing switch information array to describe the corresponding relation between the outgoing switch and the feeder of the distribution feeder.
It should be noted that the outgoing switch information array is specifically as follows:
wherein CFIM is an outgoing switch information array, CF i1 Is the unique identifier of the outgoing switch of the ith feeder line, CF i2 Is uniquely identified for the ith feeder line, and
。
s300: and establishing a minimum distribution sub-network information array model to describe a set formed by minimum distribution network outgoing switches capable of transferring loads to a target feeder line.
It should be noted that the minimum distribution sub-network information array model is specifically as follows:
wherein MDIM is minimum distribution sub-network information array model, MD ib Unique identification of the b-th feeder in the minimum distribution sub-network associated with the ith feeder, b =1,2, …, v, v is the maximum number of feeders contained in all minimum distribution sub-networks, and MD is the maximum number of feeders contained in all minimum distribution sub-networks ii For the ith feeder itself in the minimum distribution sub-network, when MD is ib When not present, is represented by-1.
S400: and acquiring a single feeder switch contact information set, performing collective operation, and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, so that minimum distribution sub-network division is realized.
It should be noted that, acquiring a single feeder switch contact information set and performing collective operation, and generating a minimum distribution sub-network information array according to a feeder switch information array model and an outgoing line switch information array specifically includes:
s401: selecting ith row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS i ：
S402: obtaining FS from outlet switch information matrix CFIM i1 And the associated feeder line information is written into the minimum distribution sub-network information array MDIM, namely:
s403: slave feedThe line switch information array FSIM selects the a-th row to form a single feeder switch contact information set SFCS a ：
Wherein a =1,2,3 …, n, a ≠ i;
s404: contact information set SFCS of single feeder switch i And SFCS a And performing operation comparison, if the two sets have the same element, indicating that the two sets have a correlation relationship and belong to the same minimum power distribution area:
if SFCS i And SFCS a The intersection of (A) is not an empty set, and SFCS i And SFCS a When the intersection of the two sets is not all-1, the feeder represented by the two sets is related:
in the formula, "n" is the intersection operator. "
"is an empty set.
At the moment, the data is acquired from an outgoing line switch information array CFIM and SFCS a The 1 st element FS in (1) a1 Associated feeder CF a2 And CF a2 Writing into the next column of elements in the minimum distribution sub-network information array MDIM, namely:
where e =2,3., v, v is the maximum number of feeders contained in all minimum distribution sub-networks.
If the intersection of the SFCSi and the SFCSa is an empty set, the S402 is returned.
S405: repeating the steps S402-S404 until the SFCS i When all the associated single feeder switch contact information sets are searched, the ith row in the minimum distribution sub-network information array MDIM is theAs a feed line MD i1 The associated minimum power distribution sub-network.
S406: and repeating the steps S401-S405 until the minimum power distribution sub-network information array MDIM is completely filled, and then finishing the minimum power distribution sub-network division of the power distribution network.
The embodiment provides a minimum distribution subnet dividing method based on a feeder switch information array, which comprises the steps of establishing a feeder switch information array model to describe the information of a connection switch associated with a distribution feeder outgoing switch and a feeder; establishing an outgoing switch information array to describe the corresponding relation between a distribution feeder outgoing switch and a feeder; establishing a set formed by a minimum distribution network outgoing switch which can transfer load to a target feeder line and is described by a minimum distribution sub-network information array model; and acquiring a single feeder switch contact information set, performing set operation, and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, so as to realize minimum distribution sub-network division. According to the embodiment, the power distribution network is divided into the minimum power distribution sub-networks which are mutually associated, so that the whole network analysis in load transfer is converted into the sub-network analysis, the search scale of the power distribution network is reduced, and the calculation analysis efficiency is improved.
The dividing method of the present example is described in detail below with reference to a typical distribution network feeder diagram shown in fig. 2.
As shown in fig. 2, bus1 and Bus2 are 10kV buses of the transformer substation, and B1-B21 are feeder line section switches; L1-L10 are interconnection switches; and S1-S8 are switches of substations of Feeder feeders 1-8.
Firstly, establishing a feeder switch information array FSIM as follows:
then, establishing an outgoing line switch information array CFIM as follows:
selecting the 1 st row from the feeder switch information array FSIM to form a single feeder switchContact information set SFCS 1 ：
Obtaining feeder information associated with FS11, and writing the feeder information into a minimum distribution sub-network information array MDIM:
contacting information sets SFCS by single feeder switches 1 The 1 st element FS of 11 And outlet switch information matrix CFIM obtains FS 11 Associated feeder CF 12 And combining CF 12 Writing into the 1 st column element in the minimum power distribution sub-network information array MDIM, namely:
selecting 2 nd row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS 2 ：
Single feeder switch contact information set SFCS 1 And SFCS 2 And performing operation comparison, if the two sets have the same element, indicating that the two sets have a correlation relationship and belong to the same minimum power distribution area:
SFCS 1 and SFCS 2 The intersection of (A) is not an empty set, and SFCS 1 And SFCS 2 The intersection of (a) and (b) is not all-1, indicating that the feeders represented by the two sets are related:
in the formula, "#" is the intersection operator. "∅" is an empty set.
Traversing other single feeder switch contact information sets in the feeder switch information array FSIM until the contact information sets contact the SFCS 1 The associated single feeder switch contact information set is all searched,the 1 st line in the minimum distribution sub-network information array MDIM is the feeder MD i1 The associated minimum power distribution sub-network.
And (4) performing the steps on each single feeder switch contact information set in the feeder switch information array FSIM until the minimum distribution sub-network information array MDIM is completely filled, and finishing the minimum distribution sub-network division of the power distribution network.
The final minimum distribution sub-network information array MDIM is as follows:
to this end, the minimum distribution sub-network division of the distribution network shown in fig. 2 is completed.
The above is a detailed description of an embodiment of the minimum distribution sub-network partitioning method based on the feeder switch information array of the present invention, and the following is a detailed description of an embodiment of the minimum distribution sub-network partitioning system based on the feeder switch information array of the present invention.
The present embodiment provides a minimum distribution sub-network partitioning system based on a feeder switch information array, including: the device comprises a first model building unit, a second model building unit, a third model building unit and a minimum distribution sub-network dividing unit.
In this embodiment, the first model building unit is configured to build a feeder switch information array model describing interconnection switch information associated with the distribution feeder outgoing switch and the feeder.
The feeder switch information array model is as follows:
in the formula, FSIM is a feeder switch information array model, FS i1 Unique identification information, FS, of the feeder outgoing switch of feeder i ij Unique identification information of the jth interconnection switch of the ith feeder line, wherein i =1,2, ·, n, j =2,3, …, m, n is the number of feeder lines of the power distribution network, and m is the maximum number of interconnection switches associated with the feeder linesIf FS ij Absent, it is represented by-1.
In this embodiment, the second model building unit is configured to build a corresponding relationship between the outgoing switch of the distribution feeder and the feeder described by the outgoing switch information array.
The outgoing switch information array is as follows:
in the formula, CFIM is the information array of the outgoing line switch, CF i1 Is the unique identifier of the outgoing switch of the ith feeder line, CF i2 Is uniquely identified for the ith feeder line, and
。
in this embodiment, the third model building unit is configured to build a set of minimum distribution network outgoing switches, where the minimum distribution network information array model describes that the load can be transferred to the target feeder.
The minimum power distribution sub-network information array model is specifically as follows:
wherein MDIM is minimum distribution sub-network information array model, MD ib Unique identification of the b-th feeder in the minimum distribution sub-network associated with the ith feeder, b =1,2, …, v, v is the maximum number of feeders contained in all minimum distribution sub-networks, and MD is the maximum number of feeders contained in all minimum distribution sub-networks ii For the ith feeder itself in the smallest distribution sub-network, when MD is ib When not present, is represented by-1.
In this embodiment, the minimum distribution sub-network dividing unit obtains the single feeder switch contact information set and performs aggregation operation, and generates the minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, thereby realizing minimum distribution sub-network division.
The method comprises the following steps of obtaining a single feeder switch contact information set, carrying out set operation, and generating a minimum distribution sub-network information array according to a feeder switch information array model and an outgoing line switch information array, and specifically comprises the following steps:
selecting the ith row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS i ：
FS is obtained from outlet switch information array CFIM i1 And (3) associating feeder information, and writing the feeder information into a minimum distribution sub-network information array (MDIM), namely:
selecting the a-th row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS a ：
Wherein a =1,2,3 …, n, a ≠ i;
single feeder switch contact information set SFCS i And SFCS a Performing operation comparison, and if the two sets have the same elements, acquiring FS from the outlet switch information array CFIM a1 Associated feeder CF a2 And CF a2 Writing into the next column of elements in the minimum distribution sub-network information array MDIM, namely:
where e =2,3., v, v is the maximum number of feeders contained in all minimum power distribution sub-networks;
for each single feeder switch contact information set SFCS i Traversing all other single feeder switch contact information sets from the feeder switch information array FSIM and carrying out operation comparison until all the associated feeder switches are relatedAnd writing the information into the corresponding minimum distribution sub-network information array, thereby obtaining the minimum distribution sub-network information array of the distribution network.
It should be noted that, the partitioning system provided in this embodiment is used to implement the partitioning method provided in the foregoing embodiment, and the specific setting of each unit is subject to complete implementation of the method, which is not described herein again.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A minimum power distribution sub-network dividing method based on a feeder switch information array is characterized by comprising the following steps:
establishing a feeder switch information array model to describe the information of a connection switch associated with a feeder and a power distribution feeder outgoing switch;
establishing an outgoing switch information array to describe the corresponding relation between the outgoing switch and the feeder of the distribution feeder;
establishing a set formed by a minimum distribution network outgoing switch for the minimum distribution subnet information array model description to transfer the target feeder load;
and acquiring a single feeder switch contact information set, performing collective operation, and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array, so as to realize minimum distribution sub-network division.
2. The feeder switch information array-based minimum distribution subnet partition method of claim 1, wherein the feeder switch information array model is specifically as follows:
wherein FSIM is the feeder switch information matrix model, FS i1 Unique identification information, FS, of a feeder outgoing switch of a feeder i ij Unique identification information of the jth interconnection switch of the ith feeder line, wherein i =1,2, ·, n, j =2,3, …, m, n is the number of feeder lines of the power distribution network, m is the maximum interconnection switch number associated with the feeder line, and if FS is used, the number of the jth interconnection switch is the maximum number of the interconnection switches associated with the feeder line ij Absent, it is represented by-1.
3. The feeder switch information array-based minimum distribution subnet partition method of claim 2, wherein the outgoing line switch information array is specifically as follows:
wherein CFIM is the outgoing switch information array, CF i1 Is the unique identifier of the outgoing switch of the ith feeder line, CF i2 Is uniquely identified for the ith feeder line, and
。
4. a feeder switch information array-based minimum distribution subnet partition method as claimed in claim 3 wherein the minimum distribution subnet information array model is specifically as follows:
wherein MDIM is the minimum distribution sub-network information array model, MD ib Unique identification of the b-th feeder in the minimum distribution sub-network associated with the ith feeder, b =1,2, …, v, v is the maximum number of feeders contained in all minimum distribution sub-networks, and MD is the maximum number of feeders contained in all minimum distribution sub-networks ii For the ith feeder itself in the smallest distribution sub-network,when MD is performed ib When not present, is represented by-1.
5. The feeder switch information array-based minimum distribution subnet dividing method according to claim 4, wherein obtaining a single feeder switch contact information set and performing an aggregation operation, generating a minimum distribution subnet information array according to the feeder switch information array model and the outgoing line switch information array, specifically comprises:
selecting the ith row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS i ：
Obtaining FS from outlet switch information matrix CFIM i1 And (3) associating feeder information, and writing the feeder information into a minimum distribution sub-network information array (MDIM), namely:
selecting the a-th row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS a ：
Wherein a =1,2,3 …, n, a ≠ i;
single feeder switch contact information set SFCS i And SFCS a Performing operation comparison, and if the two sets have the same elements, acquiring FS from the outlet switch information array CFIM a1 Associated feeder CF a2 And CF a2 Writing into the next column of elements in the minimum distribution sub-network information array MDIM, namely:
where e =2,3., v, v is the maximum number of feeders contained in all minimum distribution sub-networks;
for each single feeder switch contact information set SFCS i Traversing all other single feeder switch contact information sets from the feeder switch information array FSIM, and carrying out operation comparison until all the associated feeder information is written into the corresponding minimum distribution sub-network information array, thereby obtaining the minimum distribution sub-network information array of the power distribution network.
6. A minimum distribution sub-network division system based on a feeder switch information array is characterized by comprising the following components:
the first model building unit is used for building a feeder switch information array model to describe the information of the interconnection switch related to the distribution feeder outgoing switch and the feeder;
the second model building unit is used for building a corresponding relation between an outgoing switch information array description distribution feeder outgoing switch and a feeder;
the third model building unit is used for building a set formed by the minimum distribution network outgoing line switches for the minimum distribution sub-network information array model description to transfer the target feeder load;
and the minimum distribution sub-network dividing unit is used for acquiring a single feeder switch contact information set, carrying out aggregation operation and generating a minimum distribution sub-network information array of the power distribution network according to the feeder switch information array model and the outgoing line switch information array so as to realize minimum distribution sub-network division.
7. A minimum distribution sub-network partitioning system based on a feeder switch information array as claimed in claim 6, wherein in said first model building unit, said feeder switch information array model is specifically as follows:
wherein FSIM isThe feeder switch information array model, FS i1 Unique identification information, FS, of a feeder outgoing switch of a feeder i ij Unique identification information of the jth interconnection switch of the ith feeder line, wherein i =1,2, ·, n, j =2,3, …, m, n is the number of feeder lines of the power distribution network, m is the maximum interconnection switch number associated with the feeder line, and if FS is used, the number of the jth interconnection switch is the maximum number of the interconnection switches associated with the feeder line ij And if not, it is represented by-1.
8. A feeder switch information array-based minimum distribution sub-network partitioning system as claimed in claim 7, wherein in said second model building unit, said outgoing switch information array is specifically as follows:
wherein CFIM is the outgoing switch information array, CF i1 Is the unique identifier of the outgoing switch of the ith feeder line, CF i2 Is uniquely identified for the ith feeder line, and
。
9. a minimum distribution sub-network partitioning system based on a feeder switch information array as claimed in claim 8, wherein in said third model building unit, said minimum distribution sub-network information array model is specifically as follows:
wherein MDIM is the minimum distribution sub-network information array model, MD ib Unique identification of the b-th feeder in the minimum distribution sub-network associated with the ith feeder, b =1,2, …, v, v is the maximum number of feeders contained in all minimum distribution sub-networks, and MD is the maximum number of feeders contained in all minimum distribution sub-networks ii For the ith feeder itself in the smallest distribution sub-network, when MD is ib When not present, is represented by-1.
10. The feeder switch information array-based minimum distribution subnetwork partitioning system of claim 9, wherein a single feeder switch contact information set is obtained and subjected to aggregation operation, and a minimum distribution subnetwork information array is generated according to the feeder switch information array model and the outgoing switch information array, specifically comprising:
selecting the ith row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS i ：
FS is obtained from outlet switch information array CFIM i1 And the associated feeder line information is written into the minimum distribution sub-network information array MDIM, namely:
selecting the a-th row from the feeder switch information array FSIM to form a single feeder switch contact information set SFCS a ：
Wherein a =1,2,3 …, n, a ≠ i;
single feeder switch contact information set SFCS i And SFCS a Performing operation comparison, and if the two sets have the same elements, acquiring FS from the outlet switch information array CFIM a1 Associated feeder CF a2 And CF a2 Writing into the next column of elements in the minimum distribution sub-network information array MDIM, namely:
where e =2,3., v, v is the maximum number of feeders contained in all minimum distribution sub-networks;
for each single feeder switch contact information set SFCS i Traversing all other single feeder switch contact information sets from the feeder switch information array FSIM, and carrying out operation comparison until all the associated feeder information is written into the corresponding minimum distribution sub-network information array, thereby obtaining the minimum distribution sub-network information array of the power distribution network.
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