CN116073375A - Load transfer management method based on distribution network graph model and data analysis - Google Patents
Load transfer management method based on distribution network graph model and data analysis Download PDFInfo
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- 238000012546 transfer Methods 0.000 title claims abstract description 120
- 238000007726 management method Methods 0.000 title claims abstract description 24
- 238000007405 data analysis Methods 0.000 title claims abstract description 16
- 238000012216 screening Methods 0.000 claims abstract description 38
- 238000004458 analytical method Methods 0.000 claims abstract description 21
- 238000012795 verification Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000004364 calculation method Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000007418 data mining Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000875 corresponding effect Effects 0.000 description 35
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to the technical field of power distribution network load processing, and discloses a load transfer management method based on distribution network graph model and data analysis; analyzing and acquiring a plurality of direct transfer supply lines and indirect transfer supply lines in the distribution network lines corresponding to the fault lines through a distribution network pattern topological graph, and screening a plurality of lines to be transferred to acquire alternative lines through line load rate verification and switch protection verification; the method comprises the steps of integrating operation parameter data of all alternative lines from different dimensions to screen transfer supplies of a plurality of alternative lines to obtain an optimal alternative line; the invention can solve the technical problems that in the prior art, data monitoring, analysis and screening are not carried out on the transfer line from different dimensions, and the analysis results of different dimensions after screening are subjected to data mining integration, so that the line meeting the transfer requirement is subjected to secondary screening to obtain a proper transfer line, and the overall effect of distribution network load transfer management is poor.
Description
Technical Field
The invention relates to the technical field of power distribution network load processing, in particular to a load transfer management method based on distribution network graph model and data analysis.
Background
The load transfer technology is that when a large-area power failure occurs in a power distribution network, important loads in a non-fault power-losing area are transferred to other normal running feed lines through the operation of a switch, and meanwhile, the power supply of residual loads in the non-fault power-losing area is ensured as much as possible; the distribution network load transfer adopts a manual calculation mode to carry out safety verification at present, and a specific transfer path is selected according to operation experience, so that high cost performance is difficult to achieve.
Through retrieval, the invention with the publication number of CN110299708B and the name of a power distribution network load transfer auxiliary decision method and a system, discloses the specific steps of the power distribution network load transfer auxiliary decision method: acquiring network structure information of a power distribution network; obtaining fault line information; selecting a set of alternative lines parallel to the fault line from the network structure of the power distribution network according to the fault line information; judging and selecting a subset of the alternative lines meeting specific requirements in the alternative line set; selecting an optimal alternate line in the subset of alternate lines; carrying out power distribution network load transfer on the optimal alternative line; the method can improve the accuracy of load prediction, lighten the working pressure of a dispatcher, improve the working efficiency and ensure the safety of a power grid.
The existing power distribution network load transfer auxiliary decision scheme has certain defects in implementation, most of the scheme is still to implement single comparison on the data obtained by monitoring, and the shortest alternative line is simply set as a transfer line; the implementation of transferring lines is not subjected to data monitoring, analysis and screening from different dimensions, and the analysis results of different dimensions after screening are subjected to data mining integration, so that the lines meeting transferring requirements are subjected to secondary screening to obtain suitable transferring lines, and the overall effect of distribution network load transferring management is poor.
Disclosure of Invention
The invention provides a load transfer management method based on distribution network graph model and data analysis, which mainly aims to solve the technical problems that in the existing scheme, data monitoring, analysis and screening are not carried out on transfer lines from different dimensionalities, and data mining and integration are carried out on analysis results of different dimensionalities after screening, so that the lines meeting transfer requirements are screened for the second time to obtain proper transfer lines, and the overall effect of distribution network load transfer management is poor.
In order to achieve the above object, the present invention provides a load transfer management method based on distribution network graph model and data analysis, comprising:
acquiring a load path data record table of a fault line based on a tie switch according to a distribution network graph model topological graph;
sequentially obtaining transfer-out loads and transfer-out currents of a plurality of load transfer-out paths in a load path data record table, wherein the transfer-out loads and the transfer-out currents need to be transferred out of the distribution transformer, so as to obtain a preliminary load transfer-out scheme;
carrying out line load rate verification according to the primary load transfer scheme and combining line parameters, and carrying out switch protection verification on a plurality of screening lines and combining switch parameters to obtain a verified alternative transfer scheme;
and correlating and integrating analysis is carried out on the alternative transfer scheme and the distribution network ledger data to obtain a distribution network load transfer analysis scheme containing the selected line.
Preferably, a plurality of direct transfer supply lines and indirect transfer supply lines in the power distribution network lines are obtained based on a tie switch in an existing real-time topological graph of the distribution network graph model, and the load path data record table based on the tie switch is obtained by combining according to a preset arrangement sequence.
Preferably, calculating the maximum line active power within 48 hours and the maximum switch load current within 48 hours of the distribution transformer to be transferred according to the load transfer path to obtain a preliminary load transfer scheme;
the calculation formulas of the line active power and the switch load current are as follows:
line active load= Σswitch back side all distribution transformer 48 hours peak time active load;
switch load current = Σactive current at peak time of all power distribution transformer 48 hours at back side of switch.
Preferably, line load rate verification is carried out according to a primary load transfer scheme and combining line parameters, and lines with the load rate of not higher than 80% at the line clamping neck are marked as screening lines; carrying out switch protection verification on a plurality of screening lines in combination with switch parameters, judging whether the protection requirement of an overcurrent section of a switch is met, marking the screening lines meeting the requirement as alternative lines, and arranging and combining the alternative lines according to a preset sequence to obtain an alternative transfer scheme; the calculation formula of the load rate of the transfer line is as follows:
transfer line load rate = line active load/line allowed safe load x 100%.
Preferably, the step of performing a switch protection check in combination with the switch parameter comprises:
matching the switch load current corresponding to the screening circuit with the corresponding switch load current range, and judging that the corresponding screening circuit meets the overcurrent section protection requirement of the switch if the switch load current corresponding to the screening circuit belongs to the switch load current range; otherwise, judging that the corresponding screening line does not meet the overcurrent section protection requirement of the switch.
Preferably, when the alternative transfer scheme is associated with the distribution network ledger data and integrated and analyzed, transmission distances CJ between the same starting node and ending node of a plurality of alternative lines and the fault line are obtained; meanwhile, marking the load rate of the transfer line corresponding to the alternative line as FZ; obtaining an alternative type corresponding to the alternative line, obtaining a corresponding alternative weight according to the alternative type, and marking the corresponding alternative weight as BQ; the numerical values of all the marked data are extracted and vertically integrated in parallel, and the conversion matching degree xi corresponding to a plurality of alternative lines is sequentially obtained through calculation; the calculation formula of the conversion matching degree xi is as follows: ζ=bq× [ g1×fz+g2×cj/100]; wherein g1 and g2 are preset different proportion coefficients, and g1 is more than g2 and more than 1;
and sequentially evaluating the transmission states of a plurality of alternative lines according to the transfer matching degree to generate a distribution network load transfer analysis scheme.
Preferably, when the transmission states of the plurality of alternative lines are evaluated in turn according to the transfer matching degree, the plurality of alternative lines are arranged in an ascending order according to the magnitude of the transfer matching degree value, the alternative line corresponding to the transfer matching degree of the first row is marked as a selected line, and the selected line and the plurality of ordered alternative lines form a distribution network load transfer analysis scheme.
Preferably, the alternative types are a direct transfer line type and an indirect transfer line type.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, a plurality of direct transfer lines and indirect transfer lines in the distribution network lines corresponding to the fault lines are obtained through distribution network pattern topological graph analysis, data support in different aspects can be provided for management analysis of the follow-up optimal substitution lines through obtaining the plurality of direct transfer lines and indirect transfer lines corresponding to the fault lines, line active power and switch load current corresponding to different lines are obtained through calculation, and a plurality of lines to be transferred are screened through line load rate check and switch protection check to obtain alternative lines, so that the screening effect of the follow-up executable of the plurality of lines to be transferred can be effectively improved; the corresponding transfer matching degree is obtained by integrating and calculating the operation parameter data of all the alternative lines from different dimensions, and the optimal alternative lines are obtained by screening the transfer of a plurality of alternative lines based on the transfer matching degree, so that the overall effect of distribution network load transfer management can be effectively improved.
Drawings
Fig. 1 is a flow chart of a load transfer management method based on a distribution network graph model and data analysis according to an embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used herein is for the purpose of describing embodiments and is not intended to limit and/or restrict the disclosure; it should be noted that the singular forms "a", "an" and "the" include plural forms as well, unless the context clearly indicates otherwise; moreover, although the terms "first," "second," etc. may be used herein to describe various elements, the elements are not limited by these terms, and these terms are merely used to distinguish one element from another element.
Referring to fig. 1, a load transfer management method based on a distribution network graph model and data analysis according to an embodiment of the present invention includes:
acquiring a load path data record table of a fault line based on a tie switch according to a distribution network graph model topological graph;
the method comprises the steps that a plurality of direct transfer supply lines and indirect transfer supply lines in a power distribution network line are obtained based on a tie switch in an existing real-time topological graph of a distribution network graph model, and a load path data record table based on the tie switch is obtained by combining according to a preset arrangement sequence;
in the embodiment of the invention, a plurality of direct transfer supply lines and indirect transfer supply lines in the distribution network lines corresponding to the fault lines are obtained according to the distribution network graph-model topological graph analysis, and data support in different aspects can be provided for the management analysis of the follow-up optimal alternative lines by obtaining the plurality of direct transfer supply lines and the indirect transfer supply lines corresponding to the fault lines.
Sequentially obtaining transfer-out loads and transfer-out currents of a plurality of load transfer-out paths in a load path data record table, wherein the transfer-out loads and the transfer-out currents need to be transferred out of the distribution transformer, so as to obtain a preliminary load transfer-out scheme;
calculating the maximum line active power within 48 hours and the maximum switch load current within 48 hours of the distribution transformer according to the load transfer path to obtain a preliminary load transfer scheme;
the calculation formulas of the line active power and the switch load current are as follows:
line active load= Σswitch back side all distribution transformer 48 hours peak time active load;
switching load current= Σactive current at peak time of all distribution transformers at the back side of the switch within 48 hours;
in the embodiment of the invention, the monitoring and the calculation are implemented in the aspects of the transfer-out load and the transfer-out current of the load transfer-in path, so that data support with different dimensionalities can be provided for screening and management of the follow-up optimal alternative line.
Carrying out line load rate verification according to the primary load transfer scheme and combining line parameters, and carrying out switch protection verification on a plurality of screening lines and combining switch parameters to obtain a verified alternative transfer scheme;
the circuit load rate verification is carried out according to the primary load transfer scheme and the circuit parameters, and the circuit with the load rate of not higher than 80% at the circuit card neck is marked as a screening circuit;
carrying out switch protection verification on a plurality of screening lines in combination with switch parameters, judging whether the protection requirement of an overcurrent section of a switch is met, marking the screening lines meeting the requirement as alternative lines, and arranging and combining the alternative lines according to a preset sequence to obtain an alternative transfer scheme;
the calculation formula of the load rate of the transfer line is as follows:
transfer line load rate = line active load/line allowed safe load x 100%;
in addition, the step of performing a switch protection check in combination with the switch parameter includes:
matching the switch load current corresponding to the screening circuit with the corresponding switch load current range, and judging that the corresponding screening circuit meets the overcurrent section protection requirement of the switch if the switch load current corresponding to the screening circuit belongs to the switch load current range; otherwise, judging that the corresponding screening line does not meet the overcurrent section protection requirement of the switch;
in the embodiment of the invention, the active power and the switching load current of the circuits corresponding to different circuits are obtained through calculation, and the alternative circuits are obtained by screening the circuits to be transferred through the circuit load rate check and the switching protection check, so that the subsequent implementable overall effect of the circuits to be transferred can be effectively improved.
The alternative transfer scheme and the distribution network ledger data are correlated and integrated and analyzed to obtain a distribution network load transfer analysis scheme containing the selected line; comprising the following steps:
when the alternative transfer scheme is associated with the distribution network ledger data and integrated and analyzed, transmission distances CJ between the same starting node and ending node of a plurality of alternative lines and the fault line are obtained; the unit of the transmission distance is kilometers; meanwhile, marking the load rate of the transfer line corresponding to the alternative line as FZ; obtaining an alternative type corresponding to the alternative line, obtaining a corresponding alternative weight according to the alternative type, and marking the corresponding alternative weight as BQ;
the alternative types are a direct transfer line type and an indirect transfer line type; presetting a corresponding alternative weight for different alternative types, and matching the obtained alternative type with all the alternative types prestored in a database to obtain the corresponding alternative weight; the alternative weights are used for implementing digital representation on alternative types of different text classes so that differentiated analysis can be implemented on the influence of the transfer lines of different alternative types later;
the numerical values of all the marked data are extracted and vertically integrated in parallel, and the conversion matching degree xi corresponding to a plurality of alternative lines is sequentially obtained through calculation; the calculation formula of the conversion matching degree xi is as follows: ζ=bq× [ g1×fz+g2×cj/100]; wherein g1 and g2 are preset different proportion coefficients, and g1 is more than g2 and more than 1; the sizes of the different proportion coefficients represent that the weights of the corresponding data items in the calculation process are different; specific numerical values of different proportion coefficients can be set according to large data transferred from the distribution network;
it should be noted that the transfer matching degree is a numerical value for integrating various aspect data of different alternative lines corresponding to the fault line to integrally evaluate the transfer state thereof; the smaller the transfer matching degree is, the more suitable the overall transfer effect of the corresponding alternative line is;
when the transmission states of a plurality of alternative lines are evaluated in sequence according to the transfer matching degree, the alternative lines are arranged in ascending order according to the magnitude of the transfer matching degree value, the alternative line corresponding to the transfer matching degree of the first row is marked as a selected line, and the selected line and the ordered alternative lines form a distribution network load transfer analysis scheme.
Compared with the scheme of the optimal alternative line with the shortest line length in all the alternative lines in the existing scheme, or the scheme of the optimal alternative line is determined empirically; according to the embodiment of the invention, the corresponding transfer matching degree is obtained by integrating and calculating the operation parameter data of all the alternative lines from different dimensions, and the optimal alternative lines are obtained by screening the transfer of a plurality of alternative lines based on the transfer matching degree, so that the overall effect of distribution network load transfer management can be effectively improved.
In the several embodiments provided in the present invention, it should be understood that the disclosed method may be implemented in other manners. For example, the embodiments described above are merely illustrative, e.g., the division of modules is merely a logical function division, and other manners of division may be implemented in practice.
The modules illustrated as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units can be realized in a form of hardware or a form of hardware and a form of software functional modules.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. The load transfer management method based on the distribution network graph model and the data analysis is characterized by comprising the following steps:
acquiring a load path data record table of a fault line based on a tie switch according to a distribution network graph model topological graph;
sequentially obtaining transfer-out loads and transfer-out currents of a plurality of load transfer-out paths in a load path data record table, wherein the transfer-out loads and the transfer-out currents need to be transferred out of the distribution transformer, so as to obtain a preliminary load transfer-out scheme;
carrying out line load rate verification according to the primary load transfer scheme and combining line parameters, and carrying out switch protection verification on a plurality of screening lines and combining switch parameters to obtain a verified alternative transfer scheme;
and correlating and integrating analysis is carried out on the alternative transfer scheme and the distribution network ledger data to obtain a distribution network load transfer analysis scheme containing the selected line.
2. The load transfer management method based on distribution network graph model and data analysis as claimed in claim 1, wherein a plurality of direct transfer lines and indirect transfer lines in the distribution network lines are obtained based on the tie switches in the existing real-time topological graph of the distribution network graph model, and the load path data record table based on the tie switches is obtained by combining according to a preset arrangement sequence.
3. The load transfer management method based on distribution network graph model and data analysis as claimed in claim 1, wherein the method is characterized in that a preliminary load transfer scheme is obtained by calculating the maximum line active power within 48 hours and the maximum switch load current within 48 hours of a distribution transformer according to a load transfer path;
the calculation formulas of the line active power and the switch load current are as follows:
line active load= Σswitch back side all distribution transformer 48 hours peak time active load;
switch load current = Σactive current at peak time of all power distribution transformer 48 hours at back side of switch.
4. The load transfer management method based on distribution network graph model and data analysis as claimed in claim 3, wherein the line load rate verification is performed according to the primary load transfer scheme and the line parameters, and the line with the load rate of not higher than 80% at the line neck is marked as a screening line; carrying out switch protection verification on a plurality of screening lines in combination with switch parameters, judging whether the protection requirement of an overcurrent section of a switch is met, marking the screening lines meeting the requirement as alternative lines, and arranging and combining the alternative lines according to a preset sequence to obtain an alternative transfer scheme; the calculation formula of the load rate of the transfer line is as follows:
transfer line load rate = line active load/line allowed safe load x 100%.
5. The method for load transfer management based on distribution network graph modeling and data analysis of claim 4, wherein the step of performing switch protection verification in combination with switch parameters comprises:
matching the switch load current corresponding to the screening circuit with the corresponding switch load current range, and judging that the corresponding screening circuit meets the overcurrent section protection requirement of the switch if the switch load current corresponding to the screening circuit belongs to the switch load current range; otherwise, judging that the corresponding screening line does not meet the overcurrent section protection requirement of the switch.
6. The load transfer management method based on distribution network graph model and data analysis according to claim 5, wherein when the alternative transfer scheme is associated with distribution network ledger data and integrated and analyzed, transmission distances CJ between the same starting node and ending node of a plurality of alternative lines and a fault line are obtained; meanwhile, marking the load rate of the transfer line corresponding to the alternative line as FZ; obtaining an alternative type corresponding to the alternative line, obtaining a corresponding alternative weight according to the alternative type, and marking the corresponding alternative weight as BQ; the numerical values of all the marked data are extracted and vertically integrated in parallel, and the conversion matching degree xi corresponding to a plurality of alternative lines is sequentially obtained through calculation; the calculation formula of the conversion matching degree xi is as follows: ζ=bq× [ g1×fz+g2×cj/100]; wherein g1 and g2 are preset different proportion coefficients, and g1 is more than g2 and more than 1;
and sequentially evaluating the transmission states of a plurality of alternative lines according to the transfer matching degree to generate a distribution network load transfer analysis scheme.
7. The load transfer management method based on distribution network graph model and data analysis as claimed in claim 6, wherein when the transmission states of a plurality of alternative lines are evaluated in turn according to the transfer matching degree, the plurality of alternative lines are arranged in ascending order according to the magnitude of the transfer matching degree value, the alternative line corresponding to the transfer matching degree of the head of the arrangement is marked as a selected line, and the selected line and the plurality of ordered alternative lines form a distribution network load transfer analysis scheme.
8. The method for load transfer management based on distribution network graph modeling and data analysis according to claim 6, wherein the alternative types are a direct transfer line type and an indirect transfer line type.
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| CN115021253A (en) * | 2022-07-08 | 2022-09-06 | 广东电网有限责任公司 | Distribution network line part load transfer analysis method and system |
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- 2023-02-28 CN CN202310176134.8A patent/CN116073375A/en active Pending
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| KR20210046165A (en) * | 2019-10-18 | 2021-04-28 | 한국전력공사 | LOAD TRANSFER SYSTEM and METHOD for POWER TRANSMISSION and POWER SUPPLY |
| CN112491050A (en) * | 2020-12-04 | 2021-03-12 | 国网浙江省电力有限公司金华供电公司 | Main and distribution network accident recovery processing method based on index set weight |
| CN113013871A (en) * | 2021-01-25 | 2021-06-22 | 浙江华云信息科技有限公司 | Load transfer method for power distribution network equipment during fault and maintenance |
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