CN114119077A - Power grid facility dynamic topology profit calculation method, system, equipment and medium - Google Patents

Power grid facility dynamic topology profit calculation method, system, equipment and medium Download PDF

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CN114119077A
CN114119077A CN202111335524.2A CN202111335524A CN114119077A CN 114119077 A CN114119077 A CN 114119077A CN 202111335524 A CN202111335524 A CN 202111335524A CN 114119077 A CN114119077 A CN 114119077A
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cost
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王登政
高璐
刘兆燕
李炳辉
李榛
陈斌发
李臻
李晖
林凯
吕阳
代志强
侯炳旭
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State Grid Beijing Electric Power Co Ltd
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Abstract

The invention belongs to the technical field of electronic information, and particularly discloses a power grid facility dynamic topology profit calculation method, a system, equipment and a medium; acquiring a power grid topological graph, carrying out topological connectivity analysis on power grid facilities according to the power grid topological graph, and accounting all power supply quantity in a period T; further calculating the depreciation and amortization cost, the operating line loss cost, the manual production cost, the electricity purchasing cost, the power supply operation income and the total cost of the dynamic topology; accounting the total accumulated cost and the total power supply income of all the dynamic topologies of the facilities or equipment X to all the users Ei at the moment T in the period T; and constructing an operation profitability model of the facility or equipment X in the profit calculation period T, and further obtaining and outputting the operation profitability of the facility or equipment X in the profit calculation period T. The invention realizes the dynamic summarization and clustering analysis of the electric quantity income and completes the income calculation of each facility and equipment; and constructing a dynamic input-output ratio and asset profitability calculation model of each facility and equipment in an operation accounting period.

Description

Power grid facility dynamic topology profit calculation method, system, equipment and medium
Technical Field
The invention belongs to the technical field of electronic information, and particularly relates to a power grid facility dynamic topology profit calculation method, a system, equipment and a medium.
Background
With the gradual deepening of the electric power market reform, lean management requirements of power grid enterprises need to be further matched with national power transmission and distribution price systems, the operation benefit of enterprises is promoted to be continuously improved, meanwhile, the calculation mode of the power grid operation income is changed from the traditional plan operation integral calculation method to a more clear and more matched dynamic calculation mode of electric power marketization operation, so that the operation management requirements are met by accurately grasping the change of the electric power market, and the dynamic calculation analysis of operation conditions, particularly the operation benefits of each device and facility of the power grid is called as the key point of current power grid enterprise attention.
At present, a calculation method for power grid enterprise operation plan index management is disconnected from a power market and dynamic operation characteristics of actual power grid loop topology, a single total division management unit overall benefit calculation method is still adopted, and the actual cost generation and profit benefit conditions that high-voltage-level facility loop operation and medium-low-voltage-level facility open circuit operation can be reflected under different power market contracts are urgently needed, so that power supply operation cost benefit dynamic calculation from a power supply to a final power user can be realized according to an actual power grid power supply topology structure, the overall cost amortization calculation and the total benefit calculation of the traditional planning economy are converted into a dynamic calculation method which is accurate for power grid facilities at all levels and various power grid equipment and is suitable for reflecting the power supply and distribution topology operation structure change characteristics of the power grid.
According to the current overall cost amortization calculation method, amortization calculation is only carried out according to the total amount of power facilities, equipment, personnel and materials in a power supply range, fixed cost cannot be matched with actual development of power supply and distribution operation and operation equipment and personnel, short-board problem assets, services and personnel of cost management cannot be clearly calculated through cost quantification, and cost management of power grid facilities and equipment cannot be accurately quantified. The existing power grid operation total amount benefit calculation method can only carry out integral calculation according to a larger power grid range such as North China, Beijing City, mountain areas and the like, cannot meet the operation benefit analysis of distributed energy, distributed energy storage and novel energy-saving power utilization development on specific power grid facilities and equipment under the development condition of a novel power system, and cannot fundamentally have the benefit calculation capability on power supply and distribution operation actual topology related power assets under the operation condition of a power market because the existing calculation method is supported by a planned economic system.
Disclosure of Invention
The invention aims to provide a method, a system, equipment and a medium for calculating dynamic topological profit of a power grid facility, so as to solve the problems that cost management cannot be carried out on specific facilities and equipment due to the fact that the cost is fully shared at present, and profit of the power grid cannot be accurately positioned according to the composition of power users due to the calculation of the total amount of derivative benefit.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a power grid facility dynamic topology profit calculation method, which includes the following steps:
step S1: acquiring a power grid topological graph, carrying out topological connectivity analysis on power grid facilities according to the power grid topological graph, and accounting all power supply quantity in a period T;
step S2: calculating the depreciation and amortization cost, the running line loss cost, the manual production cost, the electricity purchasing cost, the power supply operation income and the total cost of the dynamic topology according to the power grid topological graph and all the power supply amount in the accounting period T; accounting the total cost of dynamic topology accumulation of all T-moment facilities or equipment X to all users Ei in the period T and the total power supply income of all T-moment facilities or equipment X to all users Ei in the period T;
step S3: and constructing an operation profitability model of the facility or equipment X in a profit calculation period T, substituting the total dynamic topology accumulated cost of the facility or equipment X to all users Ei at all times in the accounting period T and the total power supply income of the facility or equipment X to all users Ei at all times in the accounting period T into the operation profitability model, and obtaining and outputting the operation profitability of the facility or equipment X in the profit calculation period T.
Further, the operation profitability model of the facility or equipment X in the step S3 during the profit calculation period T is:
Figure BDA0003350358220000021
wherein:
Figure BDA0003350358220000031
represents the calculated operating profitability resulting from the facility or equipment X powering I users during the accounting period T;
t represents the total number of 15-minute periods contained in the accounting period of the profitability of the power grid facility or equipment;
t represents a natural number within a period T of a specific 15 minutes, and belongs to the natural number series [1,2,3 ];
[Ei(t)]the number E of all users E who supply power to a facility or equipment: [ E ]1,E2,E3,···]A user time matrix formed at each time T within the computation period T, each of which
Figure BDA0003350358220000032
Representing the position of a topological node at the t moment corresponding to the user i;
Figure BDA0003350358220000033
{β[Ei(t)]represents a certain power grid facility or equipment as a user
Figure BDA0003350358220000034
Grid topology space { β } passing from the power supply up to the facility or equipment at time t;
the [ beta ] topological space is determined according to the positions of a power supply and an end power user in a power grid determined by an actual power market trading contract and is split into the following users according to voltage levels
Figure BDA0003350358220000035
The sub-space of the variation is,
Figure BDA0003350358220000036
in which the subspace [ A, B, C, … ]]Giving voltage grades according to actual power grid topology, wherein the voltage grades comprise 500kV, 220kV, 110kV, 10kV and 0.4 kV; the subspace representation is a set space
Figure BDA0003350358220000037
Income[Ei(t)]Representing a user
Figure BDA0003350358220000038
Generating electricity revenue for the grid facility or device X at time t in the power supply topology;
Cost{β[Ei(t)]}representing the users from the power supply up to the grid facility or apparatus X
Figure BDA0003350358220000041
The total cost incurred by all the grid equipment and facilities occupied when providing the power service.
Further, the [ ei (t) ] sequence and the power grid topological space { β } are obtained through step S1, and the specific construction method includes:
step S11: constructing a user Ei sequence [ E ] by using topological node positions of facilities or equipment in a power grid topological graph1,E2,E3,···]Obtaining all users of the power supply service provided by the facility or equipment X in the accounting period T;
step S12: using user Ei sequence [ E ]1,E2,E3,···]According to the electricity consumption e of the user Ei at each time T in the accounting period Ti(t)Corresponding power grid topology, and constructing topology representing t time corresponding to all power supply users Ei of the facility or equipment X
Figure BDA0003350358220000042
Matrix:
Figure BDA0003350358220000043
step S13: electricity consumption e for all power supply users Ei of facilities or equipment Xi(t)Constructing dynamic power supply topology space
Figure BDA0003350358220000044
User E1Construction of { β } as follows:
Figure BDA0003350358220000045
wherein A isi、Bi、Ci、Di… … denotes each grid facility or set of { β n (t) } in each subset voltage topology at time tPreparing; the topology is represented as one node.
Further, the total power supply amount in step S1 is obtained by:
step S14: for the dynamic topology subset { β n (T) }, the total supply amount within the accounting period T is calculated
Figure BDA0003350358220000046
Figure BDA0003350358220000047
Wherein e β n (t) is the power supply amount of the subset topology β n (t) at each time t;
the step of calculating the depreciation cost of the dynamic topology in step S2 includes:
step S21: for dynamic topology subsets, the annual depreciation total cost CostA of each node device or facility in the subset topology at time t{βn(Year)}Dividing by the annual total power supply e { beta n (Year) of the topology subset β n (t), calculating the annual unit power supply depreciation cost of each node facility or equipment in the topology, and then calculating the time t by combining the time t power supply e β n (t), wherein the dynamic topology depreciation cost of the topology subset { beta n (t) } is:
Figure BDA0003350358220000051
further, the calculating steps of the operation line loss cost, the labor production cost, the electricity purchasing cost and the power supply operation input in step S2 include:
step S22: running line loss costs Cost L for dynamic topology subsets β n (t), respectively{βn[Ei(t)]}And the manual production Cost HR{βn[Ei(t)]}The calculation is carried out according to the following formula:
Figure BDA0003350358220000052
Figure BDA0003350358220000053
step S23: calculating the electricity quantity purchasing cost of the user Ei at the time t, wherein the formula is as follows:
Cost P{βn[Ei(t)]}bing-degree electricity purchase price x ei(t)
Step S24: calculating the power supply operation income of the user Ei at the time t, wherein the formula is as follows:
Income[Ei(t)]power supply price x ei(t)。
Further, the step of calculating the total cost in step S2 includes:
step S25: total Cost of computing facility or equipment to total { beta } of dynamic topology of user Ei at time t{β[Ei(t)]}The formula is as follows:
Figure BDA0003350358220000054
further, the step of calculating the total cumulative cost of the dynamic topology of the facility or device X for all users Ei at time T in the period T in step S2 includes:
step S26: and calculating the total accumulated cost of the dynamic topology of the facility or equipment X to all the users Ei at all the time T in the accounting period T, wherein the formula is as follows:
Figure BDA0003350358220000061
the step of calculating the total power supply income of all the facilities or equipment X to all the users Ei at time T in the period T in step S2 includes:
step S27: and calculating the total power supply income of all the facilities or equipment X at the moment T in the accounting period T to all the users Ei, wherein the formula is as follows:
Figure BDA0003350358220000062
in a second aspect, the present invention provides a power grid facility dynamic topology profit calculation system, including:
the power grid facility topology module is used for acquiring a power grid topology graph, carrying out topology connectivity analysis on the power grid facility according to the power grid topology graph and accounting all power supply quantity in the period T;
the analysis and calculation module is used for calculating the depreciation and depreciation cost, the running line loss cost, the manual production cost, the electricity purchasing cost, the power supply operation income and the total cost of the dynamic topology according to the power grid topological graph and all the power supply amount in the accounting period T; accounting the total accumulated cost of the dynamic topology of all the facilities or equipment X at the time T to all the users Ei in the period T and the total power supply income of all the facilities or equipment X at the time T to all the users Ei in the period T;
and the profitability calculation module is used for constructing an operation profitability model of the facility or equipment X in the profitability calculation period T, substituting the total dynamic topology accumulated cost of the facility or equipment X to all the users Ei at all the time T in the accounting period T and the total power supply income of the facility or equipment X to all the users Ei at all the time T in the accounting period T into the operation profitability model, and obtaining and outputting the operation profitability of the facility or equipment X in the profitability calculation period T.
In a third aspect, the present invention provides a computer device, including a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method for calculating the dynamic topology profit of the power grid facility when executing the computer program.
In a fourth aspect, the present invention provides a computer-readable storage medium, which stores a computer program, wherein the computer program, when executed by a processor, implements the method for calculating the dynamic topology profit of a power grid facility.
Compared with the prior art, the invention has at least the following advantages:
1. the method comprises the steps of obtaining a power grid topological graph, carrying out topological connectivity analysis on power grid facilities according to the power grid topological graph, and accounting all power supply quantity in a period T; further calculating the depreciation and amortization cost, the operating line loss cost, the manual production cost, the electric quantity acquisition and purchase cost, the power supply operation income and the total cost of the dynamic topology; accounting the total accumulated cost and the total power supply income of all the dynamic topologies of the facilities or equipment X to all the users Ei at the moment T in the period T; constructing an operation profitability model of the facility or equipment X in the profit calculation period T, and further obtaining and outputting the operation profitability of the facility or equipment X in the profit calculation period T; realizing dynamic summarization and cluster analysis of electric quantity income, and completing income calculation of each facility and equipment; and constructing a dynamic input-output ratio and asset profitability calculation model of each facility and equipment in an operation accounting period.
2. The operation income dynamic calculation method based on the marketized electric quantity dynamic topology realizes the subarea analysis of the input-output ratio and the asset income rate, can calculate the operation income rates of different grids, different facilities and equipment in the power supply area of the same power grid enterprise, and can give accurate operation analysis conclusions aiming at the equipment in different areas.
3. The topology connectivity analysis is carried out on the power grid facilities related to the power supply contract and the planned basic power supply of the power market, and the power grid facility topology under the power market operation condition is obtained, so that a power grid facility cost sharing and operation income calculating method which accords with the power market operation and the basic planned power supply operation is provided, is used for cost lean accounting management and operation benefit calculation of a power enterprise, provides a reference value of actual operation cost and benefit for power transmission and distribution price accounting specifically based on a power supply area, and solves the problems that the cost management cannot be carried out on specific facilities and equipment due to the current cost full-quantity sharing, and the profit margin cannot be accurately positioned according to the power consumer composition in the total profit calculation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a dynamic power grid topology node relationship based on electric power marketization operation provided by the present invention;
fig. 2 is a block diagram of a power grid facility dynamic topology profit calculation system according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
The invention provides a power grid facility dynamic topology profit calculation method, which comprises the following steps:
constructing a dynamic topology structure of the power grid facilities and equipment which changes along with a time series t by analyzing the topological connectivity of the power grid facilities;
analyzing and constructing the total depreciation cost of the loop and open circuit equipment of the power grid facility and equipment according to the dynamic topological structure;
accumulating and calculating the total marketized electric quantity supplied by the dynamic topology related power grid facilities and equipment according to the calculation period;
accumulating and calculating the total planned electric quantity supplied by the full-quantity topology-related power grid facilities and equipment according to the calculation period;
calculating the sum of the marketized electric quantity and the planned electric quantity supplied by each power grid facility and equipment according to the calculation period, and calculating the depreciation cost of each unit power supply quantity of each power grid facility and equipment by taking element/kW & h as a unit;
calculating the total electricity selling income in the calculation period according to the dynamic power grid topology; the topology is used as an accumulation condition, and total electricity selling income accumulation is carried out from electricity users to power supply injection points in a layered mode;
according to the calculation period, calculating the business income of each power grid facility and equipment in the operation process;
according to the operation subareas, the personnel cost and the financial cost are respectively calculated to each kW.h of electricity, and the personnel cost and the financial cost of each electricity are accumulated through the node position of an electricity terminal user in the marketized dynamic topology;
and calculating the operation profitability of each facility and equipment according to the profitability.
The calculation period is a financial calculation period such as year, quarter, month and the like.
The calculation method of the operation yield rate of each facility and equipment is as follows:
the utility and equipment operation yield calculation formula of the power grid enterprise for a total I users supplied with power by a certain facility or equipment X in the accounting period T is as follows:
Figure BDA0003350358220000091
wherein:
Figure BDA0003350358220000092
represents the calculated operating profitability resulting from the facility or equipment X powering I users during the accounting period T;
t represents the total number of 15-minute periods contained in the accounting period of the profitability of the power grid facility or equipment;
t represents a natural number within a period T of a specific 15 minutes, and belongs to the natural number series [1,2,3 ];
[Ei(t)]the number E of all users E who supply power to a facility or equipment: [ E ]1,E2,E3,···]A user time matrix formed at each time T within the computation period T, each of which
Figure BDA0003350358220000093
Representing the position of a topological node at the t moment corresponding to the user i;
Figure BDA0003350358220000094
{β[Ei(t)]represents a certain power grid facility or equipment as a user
Figure BDA0003350358220000095
Grid topology space { β } passing from the power supply up to the facility or equipment at time t;
the [ beta ] topological space is determined according to the positions of a power supply and an end power user in a power grid determined by an actual power market trading contract and is split into the following users according to voltage levels
Figure BDA0003350358220000101
The sub-space of the variation is,
Figure BDA0003350358220000102
in which the subspace [ A, B, C, … ]]Giving voltage grades according to actual power grid topology, wherein the voltage grades comprise 500kV, 220kV, 110kV, 10kV and 0.4 kV; the subspace representation is a set space
Figure BDA0003350358220000103
Income[Ei(t)]Representing a user
Figure BDA0003350358220000104
Generating electricity revenue for the grid facility or device X at time t in the power supply topology;
Cost{β[Ei(t)]}representing the users from the power supply up to the grid facility or apparatus X
Figure BDA0003350358220000105
When the power supply service is provided, all cost fees generated by all the occupied power grid equipment and facilities include, but are not limited to, the following sub items:
TABLE 1 Cost{β[Ei(t)]}Corresponding relation between sub-item name and cost expense item name
Figure BDA0003350358220000106
Example 1
The invention provides a power grid facility dynamic topology profit calculation method, which comprises the following steps:
step S1: acquiring a power grid topological graph, carrying out topological connectivity analysis on power grid facilities according to the power grid topological graph, and accounting all power supply quantity in a period T;
step S2: calculating depreciation and amortization cost, operation line loss cost, manual production cost, electric quantity purchasing cost, power supply operation income and total cost of the dynamic topology according to the power grid topological graph and all power supply quantity in the accounting period T; accounting the total cost of dynamic topology accumulation of all T-moment facilities or equipment X to all users Ei in the period T and the total power supply income of all T-moment facilities or equipment X to all users Ei in the period T;
step S3: and constructing an operation profitability model of the facility or equipment X in a profit calculation period T, substituting the total dynamic topology accumulated cost of the facility or equipment X to all users Ei at all times in the accounting period T and the total power supply income of the facility or equipment X to all users Ei at all times in the accounting period T into the operation profitability model, and obtaining and outputting the operation profitability of the facility or equipment X in the profit calculation period T.
Wherein, step S1 specifically includes:
step S11: constructing a user Ei sequence [ E ] by using topological node positions of facilities or equipment in a power grid topological graph1,E2,E3,···]Obtaining all users of the power supply service provided by the facility or equipment X in the accounting period T;
step S12: using user Ei sequence [ E ]1,E2,E3,···]According to the electricity consumption e of the user Ei at each time T in the accounting period Ti(t)Corresponding power grid topology, and constructing topology representing t time corresponding to all power supply users Ei of the facility or equipment X
Figure BDA0003350358220000111
Matrix:
Figure BDA0003350358220000112
step S13: electricity consumption e for all power supply users Ei of facilities or equipment Xi(t)Constructing dynamic power supply topology space
Figure BDA0003350358220000113
User E1Construction of { β } as follows:
Figure BDA0003350358220000114
wherein A isi、Bi、Ci、Di… …, each grid facility or equipment of { β n (t) } in each subset voltage topology at time t; the topology is represented as one node.
Step S14: for the dynamic topology subset { β n (T) }, the total supply amount within the accounting period T is calculated
Figure BDA0003350358220000121
Figure BDA0003350358220000122
Wherein e β n (t) is the power supply amount of the subset topology β n (t) at each time t;
the calculation is made by the power p β n (t) measured for 15 minutes in the absence of the charge collection device, as follows:
eβn(t)＝0.25×pβn(t)
where 0.25 represents 15 minutes to one quarter of an hour, thus unifying the unit to kW · h.
Wherein, step S2 specifically includes:
step S21: for the dynamic topology subset, the annual depreciation total Cost A of each node device or facility in the subset topology at the moment t{βn(Year)}Divided by the total annual power supply of this topological subset β n (t)e { β n (year)) }, calculating annual unit electricity supply depreciation cost of each node facility or equipment in the topology, and then calculating t time by combining the t time power supply amount e β n (t), wherein the dynamic topology depreciation cost of the topology subset { β n (t)) } is as follows:
Figure BDA0003350358220000123
step S22: running line loss costs Cost L for dynamic topology subsets β n (t), respectively{βn[Ei(t)]}And the manual production Cost HR{βn[Ei(t)]}The calculation is carried out according to the following formula:
Figure BDA0003350358220000124
Figure BDA0003350358220000125
step S23: calculating the electricity quantity purchasing cost of the user Ei at the time t, wherein the formula is as follows:
Cost P{βn[Ei(t)]}bing-degree electricity purchase price x ei(t)
Step S24: calculating the power supply operation income of the user Ei at the time t, wherein the formula is as follows:
Income[Ei(t)]power supply price x ei(t)
Step S25: total Cost of computing facility or equipment to total { beta } of dynamic topology of user Ei at time t{β[Ei(t)]}The formula is as follows:
Figure BDA0003350358220000131
step S26: and calculating the total accumulated cost of the dynamic topology of the facility or equipment X to all the users Ei at all the time T in the accounting period T, wherein the formula is as follows:
Figure BDA0003350358220000132
step S27: and calculating the total power supply income of all the facilities or equipment X at the moment T in the accounting period T to all the users Ei, wherein the formula is as follows:
Figure BDA0003350358220000133
wherein, step 3 specifically includes:
step S31: operating profitability of a computing facility or equipment X within a profitability calculation period T
Figure BDA0003350358220000134
The formula is as follows:
Figure BDA0003350358220000135
example 2
The invention provides a power grid facility dynamic topology profit calculation system, which comprises:
the power grid facility topology module is used for acquiring a power grid topology graph, carrying out topology connectivity analysis on the power grid facility according to the power grid topology graph and accounting all power supply quantity in the period T;
the analysis and calculation module is used for calculating the depreciation and depreciation cost, the running line loss cost, the manual production cost, the electricity purchasing cost, the power supply operation income and the total cost of the dynamic topology according to the power grid topological graph and all the power supply amount in the accounting period T; accounting the total accumulated cost of the dynamic topology of all the facilities or equipment X at the time T to all the users Ei in the period T and the total power supply income of all the facilities or equipment X at the time T to all the users Ei in the period T;
and the profitability calculation module is used for constructing an operation profitability model of the facility or equipment X in the profitability calculation period T, substituting the total dynamic topology accumulated cost of the facility or equipment X to all the users Ei at all the time T in the accounting period T and the total power supply income of the facility or equipment X to all the users Ei at all the time T in the accounting period T into the operation profitability model, and obtaining and outputting the operation profitability of the facility or equipment X in the profitability calculation period T.
The operating profitability model of the facility or equipment X in the profitability calculation period T is:
Figure BDA0003350358220000141
wherein:
Figure BDA0003350358220000142
represents the calculated operating profitability resulting from the facility or equipment X powering I users during the accounting period T;
t represents the total number of 15-minute periods contained in the accounting period of the profitability of the power grid facility or equipment;
t represents a natural number within a period T of a specific 15 minutes, and belongs to the natural number series [1,2,3 ];
[Ei(t)]the number E of all users E who supply power to a facility or equipment: [ E ]1,E2,E3,···]A user time matrix formed at each time T within the computation period T, each of which
Figure BDA0003350358220000143
Representing the position of a topological node at the t moment corresponding to the user i;
Figure BDA0003350358220000144
{β[Ei(t)]represents a certain power grid facility or equipment as a user
Figure BDA0003350358220000145
Grid topology space { β } passing from the power supply up to the facility or equipment at time t;
{ beta } electricity determined by actual electricity market trade contracts in topological spaceThe location of the source and the end power consumer in the grid is determined and split according to the voltage class into the dependent consumers
Figure RE-GDA0003449004420000145
The sub-space of the variation is,
Figure RE-GDA0003449004420000146
its subspace [ A, B, C.]Giving voltage grades according to actual power grid topology, wherein the voltage grades comprise 500kV, 220kV, 110kV, 10kV and 0.4 kV; the subspace representation is a set space
Figure RE-GDA0003449004420000151
Income[Ei(t)]Representing a user
Figure BDA0003350358220000152
Generating electricity revenue for the grid facility or device X at time t in the power supply topology;
Cost{β[Ei(t)]}representing the users from the power supply up to the grid facility or apparatus X
Figure BDA0003350358220000153
The total cost incurred by all the grid equipment and facilities occupied when providing the power service.
Example 3
The invention provides computer equipment, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, and is characterized in that the processor executes the computer program to realize the power grid facility dynamic topology profit calculation method in embodiment 1.
Example 4
The invention provides a computer-readable storage medium, which stores a computer program, wherein the computer program, when executed by a processor, implements a method for calculating a dynamic topology profit of a power grid facility as described in embodiment 1.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (10)

1. A power grid facility dynamic topology profit calculation method is characterized by comprising the following steps:
step S1: acquiring a power grid topological graph, carrying out topological connectivity analysis on power grid facilities according to the power grid topological graph, and accounting all power supply quantity in a period T;
step S2: calculating the depreciation and amortization cost, the running line loss cost, the manual production cost, the electricity purchasing cost, the power supply operation income and the total cost of the dynamic topology according to the power grid topological graph and all the power supply amount in the accounting period T; accounting the total cost of the dynamic topology of all T-moment facilities or equipment X to all users Ei in the period T and the total power supply income of all T-moment facilities or equipment X to all users Ei in the period T;
step S3: and constructing an operation profitability model of the facility or equipment X in a profitability calculation period T, substituting the total dynamic topology accumulated cost of the facility or equipment X to all the users Ei at all the time T in the calculation period T and the total power supply income of the facility or equipment X to all the users Ei at all the time T in the calculation period T into the operation profitability model, and obtaining and outputting the operation profitability of the facility or equipment X in the profitability calculation period T.
2. The method for calculating the dynamic topological revenue of the power grid facility according to claim 1, wherein in the step S3, the operation revenue rate model of the facility or device X in the revenue calculation period T is:
Figure FDA0003350358210000011
wherein:
Figure FDA0003350358210000012
represents the calculated operating profitability of the facility or equipment X for powering the I users in the calculation period T;
t represents the total number of 15-minute periods contained in the accounting period of the profitability of the power grid facility or equipment;
t represents a natural number within a period T of a specific 15 minutes, and belongs to the natural number series [1,2,3 ];
[Ei(t)]the number E of all users E who supply power to a facility or equipment: [ E ]1，E2，E3,···]A user time matrix formed at each time T within the accounting period T, each of which
Figure FDA0003350358210000013
Representing the position of a topological node at the t moment corresponding to the user i;
Figure FDA0003350358210000021
{β[Ei(t)]represents a certain power grid facility or equipment as a user
Figure FDA0003350358210000022
Grid topology space { β } passing from the power supply up to the facility or equipment at time t;
the [ beta ] topological space is determined according to the positions of a power supply and an end power user in a power grid determined by an actual power market trading contract and is split into the following users according to voltage levels
Figure FDA0003350358210000023
The sub-space of the variation is,
Figure FDA0003350358210000024
its subspace [ A, B, C.]Giving voltage grades according to actual power grid topology, wherein the voltage grades comprise 500kV, 220kV, 110kV, 10kV and 0.4 kV; the subspace is represented as a collection space
Figure FDA0003350358210000025
Income[Ei(t)]Representing a user
Figure FDA0003350358210000026
Generating electricity revenue for the grid facility or device X at time t in the power supply topology;
Cost{β[Ei(t)]}representing the users from the power supply up to the grid facility or apparatus X
Figure FDA0003350358210000027
The total cost incurred by all the grid equipment and facilities occupied when providing the power service.
3. The method for calculating the dynamic topological gain of the power grid facility according to claim 2, wherein the [ ei (t) ] sequence and the power grid topological space { β } are obtained through step S1, and the specific construction method includes:
step S11: constructing a user Ei sequence [ E ] by using topological node positions of facilities or equipment in a power grid topological graph1，E2，E3，···]Obtaining all users of the power supply service provided by the facility or equipment X in the accounting period T;
step S12: using user Ei sequence [ E ]1，E2，E3，···]According to the electricity consumption e of the user Ei at each time T in the accounting period Ti(t)Corresponding power grid topology, and constructing topology representing t time corresponding to all power supply users Ei of the facility or equipment X
Figure FDA0003350358210000028
Matrix:
Figure FDA0003350358210000031
step S13: electricity consumption e for all power supply users Ei of facilities or equipment Xi(t)Constructing dynamic power supply topology space
Figure FDA0003350358210000032
User E1Construction of { β } as follows:
Figure FDA0003350358210000033
wherein A isi、Bi、Ci、Di.... indicates, at time t, the respective grid facilities or devices of { β n (t) } in the respective subset voltage topologies; the topology is represented as one node.
4. The method for calculating the dynamic topological yield of the power grid facility according to claim 3, wherein the total power supply amount in step S1 is obtained by the following steps:
step S14: for the dynamic topology subset { β n (T) }, the total supply amount within the accounting period T is calculated
Figure FDA0003350358210000034
Figure FDA0003350358210000035
Wherein e β n (t) is the power supply amount of the subset topology β n (t) at each time t;
the step of calculating the depreciation cost of the dynamic topology in step S2 includes:
step S21: for dynamic topology subsets, the annual depreciation total cost CostA of each node device or facility in the subset topology at time t{βn(Year)}Divided by the annual total supply e { beta } of the topological subset betan (t)n (year), calculating annual unit electricity supply depreciation cost of each node facility or equipment in the topology, and then calculating the t time by combining the t time electricity supply quantity e beta n (t), wherein the dynamic topology depreciation cost of the topology subset { beta n (t) } is as follows:
Figure FDA0003350358210000036
5. the method for calculating the dynamic topological revenue of power grid facilities according to claim 4, wherein the step of calculating the operation line loss cost, the labor production cost, the electricity purchasing cost and the power supply operation revenue in step S2 includes:
step S22: running line loss costs Cost L for dynamic topology subsets β n (t), respectively{βn[Ei(t)]}And the manual production Cost HR{βn[Ei(t)]}The calculation is carried out according to the following formula:
Figure FDA0003350358210000041
Figure FDA0003350358210000042
step S23: calculating the electricity quantity purchasing cost of the user Ei at the time t, wherein the formula is as follows:
Cost P{βn[Ei(t)]}bing-degree electricity purchase price x ei(t)
Step S24: calculating the power supply operation income of the user Ei at the time t, wherein the formula is as follows:
Income[Ei(t)]power supply price x ei(t)。
6. The method for calculating the dynamic topological yield of the power grid facility according to claim 5, wherein the step of calculating the total cost in step S2 includes:
step S25: total Cost of computing facility or equipment to total { beta } of dynamic topology of user Ei at time t{β[Ei(t)]}The formula is as follows:
Figure FDA0003350358210000043
7. the method for calculating the dynamic topological revenue of the power grid facility according to claim 6, wherein the step of calculating the total cumulative cost of the dynamic topology of the facility or equipment X to all the users Ei at all the time T in the period T in the step S2 includes:
step S26: and calculating the total accumulated cost of the dynamic topology of the facility or equipment X to all the users Ei at all the time T in the accounting period T, wherein the formula is as follows:
Figure FDA0003350358210000044
the step of calculating the total power supply income of all the facilities or equipment x at time T to all the users Ei in the period T in step S2 includes:
step S27: and calculating the total power supply income of all the facilities or equipment X at the moment T in the accounting period T to all the users Ei, wherein the formula is as follows:
Figure FDA0003350358210000051
8. a power grid facility dynamic topology yield calculation system, comprising:
the power grid facility topology module is used for acquiring a power grid topology graph, carrying out topology connectivity analysis on the power grid facility according to the power grid topology graph and accounting all power supply quantity in the period T;
the analysis and calculation module is used for calculating the depreciation and depreciation cost, the running line loss cost, the manual production cost, the electricity purchasing cost, the power supply operation income and the total cost of the dynamic topology according to the power grid topological graph and all the power supply amount in the accounting period T; accounting the total cost of the dynamic topology of all T-moment facilities or equipment X to all users Ei in the period T and the total power supply income of all T-moment facilities or equipment X to all users Ei in the period T;
and the profitability calculation module is used for constructing an operation profitability model of the facility or equipment X in a profitability calculation period T, substituting the total dynamic topology accumulated cost of the facility or equipment X to all the users Ei at all the time T in the accounting period T and the total power supply income of the facility or equipment X to all the users Ei at all the time T in the accounting period T into the operation profitability model, and obtaining and outputting the operation profitability of the facility or equipment X in the profitability calculation period T.
9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements a method of power grid facility dynamic topology benefit calculation as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements a method for calculating a dynamic topological yield of a power grid facility as set forth in any one of claims 1 to 7.
CN202111335524.2A 2021-11-11 2021-11-11 Power grid facility dynamic topology profit calculation method, system, equipment and medium Pending CN114119077A (en)

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