CN108649578B - Method and device for adjusting grid structure and optimizing networking mode of high and medium voltage urban network - Google Patents
Method and device for adjusting grid structure and optimizing networking mode of high and medium voltage urban network Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract
The invention provides a method and a device for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode, wherein the method comprises the following steps: acquiring a grid structure model of a current area; dividing power supply partitions, and determining the power supply grade of each power supply partition; determining the wiring mode of each power supply partition according to the power supply grade; identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross and roundabout power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity; and adjusting the wiring mode of the wiring points of the non-standard wiring according to the wiring mode of each power supply subarea. The invention rationalizes the grid structure adjustment and networking mode of high and medium voltage urban networks, and improves the power supply capacity of the urban networks.
Description
Technical Field
The invention relates to the technical field of adjustment and optimization of high and medium voltage urban networks, in particular to a method and a device for adjusting a grid structure of a high and medium voltage urban network and optimizing a networking mode.
Background
Along with the continuous development of society, the demand of resident's power consumption is constantly improving, and city net power supply is contradicting seriously day by day, because the spatial power supply is inhomogeneous that leads to the spatial arrangement of the spatial grid in earlier stage city net, and because the power supply line is many, inconvenient improvement grid structure, when the power consumption peak period, still can take place large-scale power failure etc. because load changes the problem of supplying to appear, give people life, work and bring very big inconvenience.
Disclosure of Invention
In view of the above, the present invention provides a method and a device for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode, so as to rationalize the grid structure adjustment and the networking mode of the high-voltage and medium-voltage urban network and improve the power supply capability of the urban network.
In a first aspect, an embodiment of the present invention provides a method for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode, where the method includes: acquiring a grid structure model of a current area; dividing power supply partitions, and determining the power supply grade of each power supply partition; determining the wiring mode of each power supply partition according to the power supply grade; identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross and roundabout power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity; and adjusting the wiring mode of the wiring points of the non-standard wiring according to the wiring mode of each power supply subarea.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the step of determining a wiring mode of each power supply partition according to a power supply class includes: when the power supply partition is in a power supply grade of high-density load, the wiring mode of the power supply partition is chain wiring; when the power supply partition is a power supply class with low density load, the wiring mode of the power supply partition includes a two-wire one-to-one dual radiating wiring or a two-wire two-to-one wiring.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the step of adjusting a wiring manner of a wiring point of a non-standard wiring according to a wiring mode of each power supply partition includes: eliminating the wiring relation between switching stations in the cable network; bus bar extension is achieved between switchyards, creating a cable network in the form of a single loop or double loop.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the step of adjusting a wiring manner of a wiring point of a non-standard wiring according to a wiring mode of each power supply partition includes: the number of the contact points of the single-circuit trunk line in the overhead network is reduced; and establishing a connection relation of a # mode among substations of the overhead network.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the step of adjusting a wiring manner of a wiring point of a non-standard wiring according to a wiring mode of each power supply partition includes: detecting power supply radiuses of power supply lines in the power supply partitions; if the power supply radius is greater than the set threshold, decreasing the power supply radius by one of: adjusting a transformer substation connected with a power supply line; if the power supply line has communication, adjusting an open loop point; if no connection exists in the power line, a connection is established and the open loop point is adjusted.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the method further includes: updating the grid structure model according to the adjusted wiring mode; and generating a space truss structure adjustment and networking mode optimization report of the high-voltage and medium-voltage urban networks according to the updated space truss structure model.
In a second aspect, an embodiment of the present invention further provides a device for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode, including: the model acquisition module is used for acquiring a grid structure model of the current area; the grade division module is used for dividing the power supply partitions and determining the power supply grade of each power supply partition; the mode division module is used for determining the wiring mode of each power supply partition according to the power supply grade; the identification module is used for identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross and roundabout power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity; and the adjusting module is used for adjusting the wiring mode of the wiring point of the non-standard wiring according to the wiring mode of each power supply partition.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the mode dividing module is further configured to: when the power supply partition is in a power supply grade of high-density load, the wiring mode of the power supply partition is chain wiring; when the power supply partition is a power supply class with low density load, the wiring mode of the power supply partition includes a two-wire one-to-one dual radiating wiring or a two-wire two-to-one wiring.
With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where the adjusting module is further configured to: eliminating the wiring relation between switching stations in the cable network; bus bar extension is achieved between switchyards, creating a cable network in the form of a single loop or double loop.
In a third aspect, an embodiment of the present invention further provides a device for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking manner, where the device includes a memory and a processor, where the memory is used to store one or more computer instructions, and the one or more computer instructions are executed by the processor to implement the method in the first aspect.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a method, a device and a realization device for adjusting a grid structure and optimizing a networking mode of a high-voltage and medium-voltage urban network, wherein the method comprises the steps of dividing power supply partitions by acquiring a grid structure model of a current area and determining the power supply grade of each power supply partition; determining the wiring mode of each power supply partition according to the power supply grade; identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; and adjusting the wiring mode of the wiring points of the non-standard wiring according to the wiring mode of each power supply subarea. The method rationalizes the grid structure adjustment and networking mode of the high-voltage and medium-voltage urban networks, and improves the power supply capacity of the urban networks.
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 the practice of the invention as set forth above.
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 method for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode according to an embodiment of the present invention;
fig. 2 is a flowchart of another method for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode according to an embodiment of the present invention;
fig. 3 is a grid structure diagram of the taian core area before optimization according to the embodiment of the present invention;
fig. 4 is a diagram of a grid structure of an optimized taian core area according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a device for adjusting the grid structure of a high-voltage and medium-voltage urban network and optimizing the networking mode according to an embodiment of the present invention.
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.
At present, because the existing grid structure of the urban network has the problems of double circuit on the same tower, three circuit on the same tower, single circuit single change, failure of a superior power supply and incapability of completing load transfer and the like, the load cannot be smoothly transferred and supplied, the power supply capacity of the urban network is insufficient, and the demand of people on electric power in production and life cannot be met. Based on the above, the method, the device and the implementation device for adjusting the grid structure and optimizing the networking mode of the high-voltage and medium-voltage urban networks provided by the embodiment of the invention can be applied to the adjustment of the networking architecture of the power system. In order to facilitate understanding of the embodiment, a method for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode disclosed by the embodiment of the invention is first described in detail.
Referring to a flow chart of a method for adjusting a grid structure of a high and medium voltage urban network and optimizing a networking mode, which is shown in fig. 1, the method comprises the following steps:
step S102, acquiring a grid structure model of a current area;
and taking the area which is determined to be optimized as the current area, and drawing a grid structure model through related software according to the actual data of the power network of the current area, wherein the model can comprise the power supply grade, the distribution of the transformer substation, the wiring mode, the power utilization condition and the like of the current area.
Step S104, dividing power supply partitions, and determining the power supply grade of each power supply partition;
specifically, power supply partitions can be divided for the current area according to a transformer substation, a traction partition and the like in the model, and a proper power supply grade, such as residential power consumption, industrial power consumption and the like, is determined for each power supply partition according to the power supply purpose in each power supply partition; generally, industrial electricity is supplied at a high level.
Step S106, determining the wiring mode of each power supply partition according to the power supply grade;
for the area with higher load density, a chain connection mode can be adopted, and for the area with lower load density, a double-radiation connection mode with one line and one variable line, a combined mode with two lines and two variable lines or a combination mode of several connections and the like can be adopted; generally, connecting lines should not be formed too complicated.
Step S108, identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross circuitous power supply wiring, a tail end voltage abnormity, a sectional switch configuration abnormity and the like; and identifying the wiring points of the non-standard wiring according to the corresponding wiring mode, and analyzing the reason for forming the non-standard wiring according to the actual condition of the current area.
Step S110, adjusting the wiring mode of the wiring point of the non-standard wiring according to the wiring mode of each power supply partition;
according to the wiring mode of the identified wiring point of the non-standard wiring and the analysis result, adopting corresponding measures to adjust the wiring point to form a standard wiring mode;
for the cluster wiring, due to the complex contact, the power transfer and supply scheme is difficult to formulate, the main trunk and the branches can be clearly divided, the actual urban network situation of the current area is analyzed, the invalid contact is removed, the wiring is reasonably planned, the resource utilization rate is improved, and the urban network power supply capacity is improved;
for a radiating connection, the power supply capacity is insufficient due to lack of stations on the opposite side or stations on the opposite side but lack of outgoing line intervals, the following measures can be taken: establishing contact by combining the outgoing lines of the newly-built transformer substation, connecting with the existing line on the opposite side, connecting with the line on the same side, optimizing the direction from a single-shooting network to a single-ring network and from a double-shooting network to a double-ring network and the like;
for the cross roundabout power supply wiring, due to the reasons that a line corridor is limited, peripheral stations or lines are lacked, a path is not an optimal path and the like, the power supply capacity is low, peripheral stations and line resources can be considered according to the load and voltage quality conditions, the roundabout line is cut and transformed, and power supply partitions are divided;
for the abnormal tail end voltage, due to the reasons that the power supply radius of the line is too large, the section of the lead is small, the load of the line is too heavy and the like, and the line is not single, the tail end voltage is unqualified, and the following optimization measures can be taken: for the case of an excessively large supply radius: (a) firstly, considering whether a transformer substation newly-built project exists at the middle and rear sections of a line in the near term, and accessing the line if the transformer substation newly-built project exists; (b) if the circuit has the roundabout power supply problem and a better channel exists, the path is optimized; (c) if the line has communication, the open loop point is considered to be adjusted; if there is no connection but the end has a line to form connection, then building connection and adjusting the open loop point; for a small wire section: modifying the cross section; for line overload situations: cutting load; for the condition that the line load is too heavy and the power supply radius is too large: particularly recommending to construct a 35kV power distribution station;
for the abnormal configuration of the section switch, the section switch configuration is less or more on the equipment, and the operation is characterized in that the section connection users are too much, the distribution capacity is too large, and the power failure loss load does not meet the power supply safety standard. The optimization strategy is mainly to count the transformation capacity hung between the line rods and determine the segmentation points by taking 2000-4000 kVA as a standard;
and for more complex wiring, the ring is disconnected to form a simple and clear standard wiring mode, and finally a strong-simple-strong urban network is formed.
The embodiment of the invention provides a grid structure adjustment and networking mode optimization method for a high-voltage and medium-voltage urban network, which comprises the steps of dividing power supply partitions by acquiring a grid structure model of a current area, and determining the power supply grade of each power supply partition; determining the wiring mode of each power supply partition according to the power supply grade; identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross and roundabout power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity; and adjusting the wiring mode of the wiring points of the non-standard wiring according to the wiring mode of each power supply subarea. The method can rationalize the grid structure adjustment and the networking mode of the high-voltage and medium-voltage urban networks, and improve the power supply capacity of the urban networks.
Referring to fig. 2, a flow chart of another method for adjusting the grid structure of a high and medium voltage urban network and optimizing the networking mode is shown, and the method is implemented on the basis of the method shown in fig. 1, and the method comprises the following steps:
step S202, acquiring a grid structure model of a current area;
step S204, dividing power supply partitions, and determining the power supply grade of each power supply partition; when the power supply subarea is in a power supply grade of a high-density load, the wiring mode of the power supply subarea is chain wiring; when the power supply subarea is a power supply grade of low-density load, the wiring mode of the power supply subarea comprises a two-wire one-to-one double-radiation wiring or a two-wire two-to-one wiring;
dividing power supply partitions for the current region according to the grid structure model, and selecting proper power supply grades for the power supply partitions, wherein the three power supply grades are divided into a high-voltage urban network, a lower-level high-voltage urban network and a medium-voltage urban network; the high-voltage urban network adopts an annular structure and independently supplies power to a lower-level high-voltage urban network and a lower-level high-voltage transformer substation; the lower-level high-voltage urban network adopts ring network wiring, open-loop operation and other modes, mainly adopts a radiation feed supply mode, and the high-voltage transformer substations in two or more directions provide power supplies.
Generally, no more than 3 subordinate high-voltage substations are arranged in a group of wiring, and for 4 or more subordinate high-voltage substations in the group of wiring, chain reaction is easy to occur once a fault occurs, so that a large-scale power failure event is caused, and the ring needs to be disconnected; for a group of high-voltage substations with 3 subordinate lines in the wiring, whether the adjustment is carried out or not can be determined according to specific conditions; if the number of the main transformer stations is small, the load is light, and the cost performance of the transformation is not high, the temporary reservation can be carried out.
Step S206, identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross circuitous power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity;
step S208, adjusting the wiring mode of the wiring point of the non-standard wiring according to the wiring mode of each power supply subarea;
step S210, updating the grid structure model according to the adjusted wiring mode; and generating a space truss structure adjustment and networking mode optimization report of the high and medium voltage urban networks according to the updated space truss structure model.
For the net rack which can meet the requirement of power supply reliability, does not influence the operation safety of the urban network, but does not form standard wiring, the net rack is not independently adjusted, needs to be combined with peripheral net racks, considers the cost performance of transformation, and determines whether to adjust according to actual conditions.
According to the embodiment of the invention, the grade of the urban network is reasonably divided according to the actual condition of the urban network in the current region, the existing resources are fully utilized, the resource utilization rate is improved, the urban network planning cost is reduced, the power supply transfer scheme is easy to make, the smooth transfer of the load is ensured, and the power supply capacity of the urban network is improved.
The embodiment of the invention also provides another method for adjusting the grid structure of the high-voltage and medium-voltage urban network and optimizing the networking mode; the method is realized on the basis of the method shown in FIG. 2; in this embodiment, a description is given by taking as an example a wiring manner of adjusting a wiring point of a non-standard wiring according to a wiring mode of each power supply partition, specifically as follows:
(1) when the cable network is in complex wiring, the wiring relation between the switching stations in the cable network can be eliminated; bus bar extension is achieved between switchyards, creating a cable network in the form of a single loop or double loop.
(2) When the overhead network is in complex wiring, the number of contact points of the single-circuit trunk line in the overhead network can be reduced; and establishing a connection relation of a # mode among substations of the overhead network.
(3) When the overhead cable hybrid network complex wiring is performed, the power supply radius of each power supply circuit in the power supply subarea can be detected; if the power supply radius is greater than the set threshold, decreasing the power supply radius by one of: adjusting a transformer substation connected with a power supply line; if the power supply line has communication, adjusting an open loop point; if no connection exists in the power line, a connection is established and the open loop point is adjusted.
The embodiment of the invention can fully utilize the original channel resources, avoid large-scale disassembly and large-scale construction, improve the resource utilization rate, simultaneously consider the access of users under construction and newly built, ensure the power supply capability and improve the power supply reliability.
Corresponding to the method embodiment, taking the grid structure diagram of the taian core area before optimization shown in fig. 3 as an example, the method embodiment is adopted to perform optimization processing on the grid structure diagram of the taian core area before optimization to obtain the grid structure diagram of the taian core area after optimization shown in fig. 4, and the specific optimization process is as follows:
the 1 110kV south lake transformer is established in the Taian core area, namely the lower-level high-voltage urban network, most of grid structures are nonstandard wiring, and the nonstandard wiring proportion of the high-voltage urban network and the lower-level high-voltage urban network is high, so that the grid structures of the high-voltage power grid need to be optimized, the nonstandard wiring of the high-voltage urban network and the lower-level high-voltage urban network is eliminated by combining the wiring modes of the high-voltage transformer substation and the lower-level high-voltage power distribution network, and the power supply reliability of the power grid in the Taian core area is improved. Because the corridor resources in the urban core area are short and the building and the transformation are difficult, the net rack optimization is mainly carried out aiming at the northern high temperature change of 110kV by combining the distant view annual target net rack, and a group of single chains are formed.
The embodiment of the invention combines a specific embodiment to explain the feasibility of the embodiment of the method, and by adopting the method, the grid structure adjustment and the networking mode of the high-voltage and medium-voltage urban networks can be rationalized, and the power supply capacity of the urban networks is improved.
Corresponding to the above method embodiment, referring to fig. 5, a schematic structural diagram of a device for adjusting a grid structure of a high and medium voltage urban network and optimizing a networking mode includes the following parts:
a model obtaining module 50, configured to obtain a grid structure model of a current area;
a grade division module 51, configured to divide power supply partitions and determine power supply grades of the power supply partitions;
the mode dividing module 52 is used for determining the wiring mode of each power supply partition according to the power supply grade;
the identification module 53 is configured to identify a connection point of a non-standard connection of each power supply partition in the grid structure model according to the corresponding connection mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross and roundabout power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity;
and an adjusting module 54 for adjusting the wiring mode of the non-standard wiring connection points according to the wiring mode of each power supply subarea.
The mode dividing module 52 is further configured to: when the power supply partition is in a power supply grade of high-density load, the wiring mode of the power supply partition is chain wiring; when the power supply partition is a power supply class with low density load, the wiring mode of the power supply partition includes a two-wire one-to-one dual radiating wiring or a two-wire two-to-one wiring.
The adjusting module 54 is further configured to: eliminating the wiring relation between switching stations in the cable network; bus bar extension is achieved between switchyards, creating a cable network in the form of a single loop or double loop.
The space truss structure adjusting and networking mode optimizing device for the high and medium voltage urban networks provided by the embodiment of the invention has the same technical characteristics as the space truss structure adjusting and networking mode optimizing method for the high and medium voltage urban networks provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
Referring to fig. 6, this embodiment further provides a schematic structural diagram of a device for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking manner, corresponding to the above method embodiment, where the device includes a memory 100 and a processor 101; the memory 100 is used for storing one or more computer instructions, and the one or more computer instructions are executed by the processor to implement the grid structure adjustment and networking mode optimization method for the high-voltage and medium-voltage urban networks, which may include one or more of the above methods.
Further, the distributed storage apparatus shown in fig. 6 further includes a bus 102 and a communication interface 103, and the processor 101, the communication interface 103, and the memory 100 are connected by the bus 102.
The Memory 100 may include a high-speed Random Access Memory (RAM) and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 103 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used. The bus 102 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 6, but that does not indicate only one bus or one type of bus.
The processor 101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 101. The Processor 101 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 100, and the processor 101 reads the information in the memory 100, and completes the steps of the method of the foregoing embodiment in combination with the hardware thereof.
The embodiment of the present invention further provides a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions, and when the machine-executable instructions are called and executed by a processor, the machine-executable instructions cause the processor to implement the method for adjusting the grid structure and optimizing the networking mode of the high and medium voltage urban networks, which is described in the method embodiment for specific implementation and is not described herein again.
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.
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 (8)
1. A method for adjusting a grid structure of a high-voltage and medium-voltage urban network and optimizing a networking mode is characterized by comprising the following steps:
acquiring a grid structure model of a current area;
dividing power supply partitions, and determining the power supply grade of each power supply partition;
when the power supply partition is in a power supply grade of high-density load, the wiring mode of the power supply partition is chain wiring;
when the power supply subarea is a power supply grade of low-density load, the wiring mode of the power supply subarea comprises a two-wire one-to-one double-radiation wiring or a two-wire two-to-one wiring;
identifying the wiring points of the nonstandard wiring of each power supply subarea in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross circuitous power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity;
and adjusting the wiring mode of the wiring points of the non-standard wiring according to the wiring mode of each power supply subarea.
2. The method of claim 1, wherein said step of adjusting the wiring pattern of the non-standard wiring connection points according to the wiring pattern of said power supply partitions comprises:
eliminating the wiring relation between switching stations in the cable network;
bus bar extension is achieved between the switchyard, establishing a cable network in the form of a single loop or double loop.
3. The method of claim 1, wherein said step of adjusting the wiring pattern of the non-standard wiring connection points according to the wiring pattern of said power supply partitions comprises:
the number of the contact points of the single-circuit trunk line in the overhead network is reduced;
and establishing a connection relation of a # type mode among the substations of the overhead network.
4. The method of claim 1, wherein said step of adjusting the wiring pattern of the non-standard wiring connection points according to the wiring pattern of said power supply partitions comprises:
detecting power supply radiuses of power supply lines in the power supply subareas;
if the power supply radius is larger than a set threshold, reducing the power supply radius by one of the following ways:
adjusting a transformer substation connected with the power supply line;
adjusting an open loop point if there is a tie in the power line; if no contact exists in the power supply line, establishing contact and adjusting an open loop point.
5. The method of claim 1, further comprising: updating the grid structure model according to the adjusted wiring mode; and generating a space truss structure adjustment and networking mode optimization report of the high and medium voltage urban networks according to the updated space truss structure model.
6. The utility model provides a spatial grid structure adjustment and network deployment mode optimizing apparatus of high, medium voltage city net which characterized in that, the device includes:
the model acquisition module is used for acquiring a grid structure model of the current area;
the grade division module is used for dividing the power supply partitions and determining the power supply grade of each power supply partition;
the mode division module is used for enabling the wiring mode of the power supply partition to be chain wiring when the power supply partition is in a power supply grade of high-density load; when the power supply subarea is a power supply grade of low-density load, the wiring mode of the power supply subarea comprises a two-wire one-to-one double-radiation wiring or a two-wire two-to-one wiring;
the identification module is used for identifying the wiring points of the nonstandard wiring of each power supply partition in the grid structure model according to the corresponding wiring mode; the non-standard wiring comprises a ball-shaped wiring, a radiation wiring, a cross circuitous power supply wiring, a tail end voltage abnormity and a sectional switch configuration abnormity;
and the adjusting module is used for adjusting the wiring mode of the wiring point of the non-standard wiring according to the wiring mode of each power supply subarea.
7. The apparatus of claim 6, wherein the adjustment module is further configured to:
eliminating the wiring relation between switching stations in the cable network;
bus bar extension is achieved between the switchyard, establishing a cable network in the form of a single loop or double loop.
8. A device for adjusting a grid structure of a high and medium voltage urban network and optimizing a networking mode, which is characterized by comprising a memory and a processor, wherein the memory is used for storing one or more computer instructions, and the one or more computer instructions are executed by the processor to realize the method of any one of claims 1 to 5.
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| CN114693184B (en) * | 2022-05-31 | 2022-11-22 | 广东电网有限责任公司佛山供电局 | Automatic analysis method, system and equipment for network frame problem of distribution network line |
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