CN115879692A - Power distribution network planning system and planning method - Google Patents
Power distribution network planning system and planning method Download PDFInfo
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- CN115879692A CN115879692A CN202211392091.9A CN202211392091A CN115879692A CN 115879692 A CN115879692 A CN 115879692A CN 202211392091 A CN202211392091 A CN 202211392091A CN 115879692 A CN115879692 A CN 115879692A
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- 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
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Abstract
The invention relates to the technical field of power distribution network planning, in particular to a power distribution network planning system and a power distribution network planning method. The invention is provided with a region division module, a data acquisition module, a planning model, a planning management module and a control center which are matched. And weighting the acquired information data and introducing a convergence factor on the basis of a particle swarm algorithm, and improving multiple iterations to obtain a corresponding planning strategy. And comparing the system node voltage out-of-limit index and the branch tide flow load index with the key index of power grid tide calculation, combining the characteristics of the power distribution network, carrying out scheme feasibility analysis on the power grid structure, the equipment level, the power supply capacity, the intellectualization and the green development, and comparing and evaluating various planning schemes from the aspects of the power supply capacity, the power supply reliability, the operation efficiency and the economy to obtain an optimal scheme. The connectivity and the radiativity of the power distribution network are ensured, and the problems of isolated island, isolated chain and ring formation are effectively avoided. The automation and intelligence are strong, and the feasibility of planning scheme operation is improved.
Description
Technical Field
The invention relates to the technical field of power distribution network planning, in particular to a power distribution network planning system and a power distribution network planning method.
Background
With the continuous development of social economy, the scale of the power distribution network is increasingly large and complex. The traditional power distribution network planning working mode does not comprehensively and comprehensively consider gallery resources, geographic terrains, sensitive areas, local planning, city power supply area overlapping, boundary blurring, wiring disorder, disordered connection, power supply cross roundabout and other problems to be gradually highlighted, and power supply requirements of different areas, different power utilization properties, different users and different power supply reliability requirements are more and more difficult to meet. Only part of quantitative analysis and calculation can be provided, the planning scheme is mainly formulated by depending on knowledge and experience of planning personnel, time and labor are consumed, the working quality is difficult to guarantee, and the feasibility of the actual operation of the planning scheme is influenced. The method and the device have the advantages that innovative thinking is urgently needed, and the realization of the online planning service is accelerated.
Disclosure of Invention
Aiming at the problems in the background technology, a power distribution network planning system and a planning method are provided. The invention is provided with a region division module, a data acquisition module, a planning model, a planning management module and a control center which are matched. The connectivity and the radiativity of the power distribution network are ensured, the problems of isolated island, isolated chain and ring formation are effectively avoided, and the feasibility of planning scheme operation is improved.
The invention provides a power distribution network planning system which comprises an area division module, a data acquisition module, a planning model, a planning management module and a control center. The regional division module is used for carrying out relatively independent zoning in urban districts, suburbs and urban administrative regions according to urban construction and power grid development requirements and considering power demand, power load and power grade, and the zoning comprises an industrial aggregation zone, an administrative central zone, a central business zone, an educational research zone, a living concentration zone, a core business zone, an agricultural economic zone and a mixed function; the partition is then divided into a number of power grids. The data acquisition module is used for acquiring the power information and the user information of each power supply grid and comprises a power information acquisition unit and a user information acquisition unit. The planning model is based on a particle swarm algorithm, weights acquired information data, introduces a convergence factor, converts user information and power information in each power supply grid into coordinates, brings the coordinates into a particle swarm algorithm function, and carries out multiple iterations to obtain a corresponding planning strategy, wherein the planning model comprises a data input unit, an algorithm operation unit and a strategy output unit. The planning management module evaluates a planning strategy according to the actual condition of equipment in the power supply grid and the electricity utilization priority division condition, and helps a user to find an optimal planning scheme, and the planning management module comprises an equipment management unit, an electricity utilization priority division unit and a result evaluation unit.
Preferably, the management objects of the device management unit include switch-type electrical devices, bus-type electrical devices, transformer-type electrical devices, and line-type electrical devices in all the power supply grids.
Preferably, the result evaluation unit compares the system node voltage out-of-limit index, the branch tide flow load index and the power grid tide flow calculation key index to judge the feasibility of the planning result.
Preferably, the result evaluation unit is combined with the characteristics of the power distribution network to perform diagnosis and analysis of scheme feasibility analysis on the power grid structure, equipment level, power supply capacity, intellectualization and green development.
Preferably, the result evaluation unit is based on power distribution network simulation calculation, compares, selects and evaluates each planning scheme from the aspects of power supply capacity, power supply reliability, operation efficiency and economy, and recommends an optimal scheme.
Preferably, the electricity prioritization unit performs area prioritization and power prioritization for each user according to factors such as power usage function, usage direction, and electricity usage properties of each user in the area.
Preferably, the data acquisition module is used for acquiring the environmental factor parameter, the power demand parameter, the actual load parameter and the DG output.
Preferably, the convergence factor relates to an annual combined cost, an annual investment cost, a network operation cost and a DG shedding amount within the plan.
Preferably, the power supply grids are divided according to the administrative village, town and district grades, and 10-12 block lines with the same land property are divided into the same power supply grid.
The invention also provides a planning method of the power distribution network planning system, which comprises the following steps:
s1, relatively independent partitioning is carried out on an area to be planned;
s2, dividing according to administrative village, town and district grades, and dividing 10-12 block lines with the same land property into the same power supply grid;
s3, collecting environmental factor parameters, power demand parameters, actual load parameters and DG output in each power supply grid;
s4, inputting the acquired data into a planning model, weighting the acquired information data, introducing a convergence factor, converting user information and power information in each power supply grid into coordinates, substituting the coordinates into a particle swarm algorithm function, and performing multiple iterations to obtain a corresponding planning strategy;
s5, comparing a system node voltage out-of-limit index and a branch tide flow load index with a power grid tide calculation key index, combining the characteristics of a power distribution network, carrying out scheme feasibility analysis on a power grid structure, equipment level, power supply capacity, intellectualization and green development, carrying out comparison selection and evaluation on each planning scheme from the aspects of power supply capacity, power supply reliability, operation efficiency and economy, and recommending an optimal scheme;
and S6, outputting a planning scheme.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention is provided with a region division module, a data acquisition module, a planning model, a planning management module and a control center which are matched. And weighting the acquired information data and introducing a convergence factor on the basis of a particle swarm algorithm, and improving multiple iterations to obtain a corresponding planning strategy. And comparing the system node voltage out-of-limit index, the branch tide flow load index and the power grid tide flow calculation key index, combining the characteristics of the power distribution network, carrying out scheme feasibility analysis on the power grid structure, the equipment level, the power supply capacity, the intellectualization and the green development, and carrying out comparison selection and evaluation on each planning scheme from the aspects of the power supply capacity, the power supply reliability, the operation efficiency and the economy to obtain an optimal scheme. The processing mode ensures the connectivity and the radiancy of the power distribution network and effectively avoids the problems of isolated islands, isolated chains and ring formation. The automation and intelligence are strong, and the feasibility of planning scheme operation is improved.
Drawings
FIG. 1 is a flowchart of a method according to an embodiment of the present invention.
Detailed Description
Example one
The invention provides a power distribution network planning system which comprises an area division module, a data acquisition module, a planning model, a planning management module and a control center. The regional division module is used for carrying out relatively independent zoning in consideration of power demand, power load and power grade in urban areas, suburban areas and urban administrative areas due to urban construction and power grid development requirements, and the zoning comprises an industrial gathering zone, an administrative central zone, a central business zone, an educational and scientific research zone, a life gathering zone, a core business zone, an agricultural and economic zone and a mixed function; the partition is then divided into a number of power grids. The data acquisition module is used for acquiring the power information and the user information of each power supply grid and comprises a power information acquisition unit and a user information acquisition unit. The planning model is based on a particle swarm algorithm, weights acquired information data, introduces a convergence factor, converts user information and power information in each power supply grid into coordinates, brings the coordinates into a particle swarm algorithm function, and carries out multiple iterations to obtain a corresponding planning strategy, wherein the planning model comprises a data input unit, an algorithm operation unit and a strategy output unit. The planning management module evaluates a planning strategy according to the actual condition of equipment in the power supply grid and the electricity utilization priority division condition, and helps a user to find an optimal planning scheme, and the planning management module comprises an equipment management unit, an electricity utilization priority division unit and a result evaluation unit.
Example two
The invention provides a power distribution network planning system which comprises an area division module, a data acquisition module, a planning model, a planning management module and a control center. The regional division module is used for carrying out relatively independent zoning in consideration of power demand, power load and power grade in urban areas, suburban areas and urban administrative areas due to urban construction and power grid development requirements, and the zoning comprises an industrial gathering zone, an administrative central zone, a central business zone, an educational and scientific research zone, a life gathering zone, a core business zone, an agricultural and economic zone and a mixed function; the partition is then divided into a number of power grids. The data acquisition module is used for acquiring the power information and the user information of each power supply grid and comprises a power information acquisition unit and a user information acquisition unit. The planning model is based on a particle swarm algorithm, weights acquired information data, introduces a convergence factor, converts user information and power information in each power supply grid into coordinates, brings the coordinates into a particle swarm algorithm function, and conducts multiple iterations to obtain a corresponding planning strategy, wherein the planning model comprises a data input unit, an algorithm operation unit and a strategy output unit. The planning management module evaluates a planning strategy according to the actual condition of equipment in the power supply grid and the electricity utilization priority division condition, and helps a user to find an optimal planning scheme, and the planning management module comprises an equipment management unit, an electricity utilization priority division unit and a result evaluation unit.
Furthermore, the management objects of the equipment management unit comprise all switch type electrical equipment, bus type electrical equipment, transformer type electrical equipment and line type electrical equipment in the power supply grid.
Further, the result evaluation unit compares the system node voltage out-of-limit index, the branch tide flow load index and the power grid tide flow calculation key index to judge the feasibility of the planning result.
Furthermore, the result evaluation unit is combined with the characteristics of the power distribution network to carry out diagnosis and analysis of scheme feasibility analysis on the power distribution network structure, equipment level, power supply capacity, intellectualization and green development.
Further, the result evaluation unit is based on power distribution network simulation calculation, and compares, selects and evaluates each planning scheme from the aspects of power supply capacity, power supply reliability, operation efficiency and economy, and recommends an optimal scheme.
EXAMPLE III
The invention provides a power distribution network planning system which comprises an area division module, a data acquisition module, a planning model, a planning management module and a control center. The regional division module is used for carrying out relatively independent zoning in consideration of power demand, power load and power grade in urban areas, suburban areas and urban administrative areas due to urban construction and power grid development requirements, and the zoning comprises an industrial gathering zone, an administrative central zone, a central business zone, an educational and scientific research zone, a life gathering zone, a core business zone, an agricultural and economic zone and a mixed function; the partition is then divided into a number of power grids. The data acquisition module is used for acquiring the power information and the user information of each power supply grid and comprises a power information acquisition unit and a user information acquisition unit. The planning model is based on a particle swarm algorithm, weights acquired information data, introduces a convergence factor, converts user information and power information in each power supply grid into coordinates, brings the coordinates into a particle swarm algorithm function, and carries out multiple iterations to obtain a corresponding planning strategy, wherein the planning model comprises a data input unit, an algorithm operation unit and a strategy output unit. The planning management module evaluates a planning strategy according to the actual condition of equipment in the power supply grid and the electricity utilization priority division condition, and helps a user to find an optimal planning scheme, and the planning management module comprises an equipment management unit, an electricity utilization priority division unit and a result evaluation unit.
Furthermore, the management objects of the device management unit include switch-type electrical devices, bus-type electrical devices, transformer-type electrical devices and line-type electrical devices in all the power supply grids.
Further, the result evaluation unit compares the system node voltage out-of-limit index, the branch tide flow load index and the power grid tide flow calculation key index to judge the feasibility of the planning result.
Furthermore, the result evaluation unit is combined with the characteristics of the power distribution network to perform diagnosis and analysis of scheme feasibility analysis on the power grid structure, equipment level, power supply capacity, intellectualization and green development.
Further, the result evaluation unit is based on power distribution network simulation calculation, and compares, selects and evaluates each planning scheme from the aspects of power supply capacity, power supply reliability, operation efficiency and economy, and recommends an optimal scheme.
Further, the electricity utilization prioritizing unit performs area division according to factors such as an electricity usage function, a usage direction, and electricity utilization properties of each user in the area, and performs electricity utilization prioritization for each user.
Further, the data acquisition module is used for acquiring the environmental factor parameter, the power demand parameter, the actual load parameter and the DG output.
Further, the convergence factor relates to the planned annual combined cost, annual investment cost, network operating cost and DG shedding volume.
Furthermore, the power supply grids are divided according to administrative village, town and district grades, and 10-12 block lines with the same land property are divided into the same power supply grid.
Example four
As shown in fig. 1, the present invention further provides a planning method for the power distribution network planning system, which includes the following steps:
s1, relatively independent partitioning is carried out on an area to be planned;
s2, dividing according to administrative village, town and district grades, and dividing 10-12 block lines with the same land property into the same power supply grid;
s3, collecting environmental factor parameters, power consumption demand parameters, actual load parameters and DG output in each power supply grid;
s4, inputting the acquired data into a planning model, weighting the acquired information data, introducing a convergence factor, converting user information and power information in each power supply grid into coordinates, substituting the coordinates into a particle swarm algorithm function, and performing multiple iterations to obtain a corresponding planning strategy;
s5, comparing a system node voltage out-of-limit index, a branch tide flow load index and a power grid tide flow calculation key index, combining the characteristics of a power distribution network, carrying out scheme feasibility analysis on a power grid structure, an equipment level, power supply capacity, intellectualization and green development, comparing and selecting and evaluating various planning schemes from the aspects of power supply capacity, power supply reliability, operation efficiency and economy, and recommending an optimal scheme;
and S6, outputting a planning scheme.
The invention is provided with a region division module, a data acquisition module, a planning model, a planning management module and a control center which are matched. And weighting the acquired information data and introducing a convergence factor on the basis of a particle swarm algorithm, and improving multiple iterations to obtain a corresponding planning strategy. And comparing the system node voltage out-of-limit index and the branch tide flow load index with a power grid tide calculation key index, combining the characteristics of the power distribution network, carrying out scheme feasibility analysis on the power grid structure, the equipment level, the power supply capacity, the intellectualization and the green development, and carrying out comparison selection and evaluation on each planning scheme from the aspects of the power supply capacity, the power supply reliability, the operation efficiency and the economy to obtain an optimal scheme. The processing mode ensures the connectivity and the radiancy of the power distribution network and effectively avoids the problems of isolated islands, isolated chains and ring formation. The automation and intelligence are strong, and the feasibility of planning scheme operation is improved.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A power distribution network planning system is characterized by comprising an area division module, a data acquisition module, a planning model, a planning management module and a control center;
the regional division module is used for carrying out relatively independent zoning in consideration of power demand, power load and power grade in urban areas, suburban areas and urban administrative areas due to urban construction and power grid development requirements, and the zoning comprises an industrial gathering zone, an administrative central zone, a central business zone, an educational and scientific research zone, a life gathering zone, a core business zone, an agricultural and economic zone and a mixed function; dividing the subareas into a plurality of power supply grids;
the data acquisition module is used for acquiring the power information and the user information of each power supply grid and comprises a power information acquisition unit and a user information acquisition unit;
the planning model is based on a particle swarm algorithm, weights acquired information data, introduces a convergence factor, converts user information and power information in each power supply grid into coordinates, brings the coordinates into a particle swarm algorithm function, and carries out multiple iterations to obtain a corresponding planning strategy, wherein the planning strategy comprises a data input unit, an algorithm operation unit and a strategy output unit;
the planning management module evaluates a planning strategy according to the actual condition of equipment in the power supply grid and the electricity utilization priority division condition, and helps a user to find an optimal planning scheme, and the planning management module comprises an equipment management unit, an electricity utilization priority division unit and a result evaluation unit.
2. The power distribution network planning system according to claim 1, wherein the management objects of the equipment management unit include switch-type electrical equipment, bus-type electrical equipment, transformer-type electrical equipment and line-type electrical equipment in all power supply grids.
3. The power distribution network planning system of claim 1, wherein the result evaluation unit compares a system node voltage out-of-limit index, a branch tide flow load index and a power grid tide calculation key index to determine feasibility of a planning result.
4. The power distribution network planning system of claim 1, wherein the result evaluation unit performs a diagnostic analysis of the feasibility analysis of the scheme on the power grid structure, the equipment level, the power supply capacity, the intellectualization and the green development in combination with the characteristics of the power distribution network.
5. The power distribution network planning system of claim 1, wherein the result evaluation unit is based on power distribution network simulation calculation, compares, selects and evaluates each planning scheme from the aspects of power supply capacity, power supply reliability, operation efficiency and economy, and recommends an optimal scheme.
6. The power distribution network planning system of claim 1, wherein the power utilization prioritization unit performs area prioritization according to factors such as power usage function, usage direction, and power utilization properties of each user in an area, and performs power utilization prioritization for each user.
7. The power distribution network planning system of claim 1, wherein the data acquisition module is configured to obtain the environmental factor parameter, the power demand parameter, the actual load parameter, and the DG output amount.
8. A system for planning a distribution network according to claim 1, wherein the convergence factor relates to the annual aggregate costs, annual investment costs, network operating costs and DG shedding volume within the plan.
9. The power distribution network planning system of claim 1, wherein the power supply grids are divided according to administrative rural, township and district levels, and 10-12 block lines with the same land property are divided into the same power supply grid.
10. A planning method comprising the power distribution network planning system according to any one of claims 1 to 9, characterized by the steps of:
s1, relatively independent partitioning is carried out on an area to be planned;
s2, dividing according to the rural, town and district grades of administration, and dividing 10-12 block lines with the same land property into the same power supply grid;
s3, collecting environmental factor parameters, power demand parameters, actual load parameters and DG output in each power supply grid;
s4, inputting the acquired data into a planning model, weighting the acquired information data, introducing a convergence factor, converting user information and power information in each power supply grid into coordinates, substituting the coordinates into a particle swarm algorithm function, and performing multiple iterations to obtain a corresponding planning strategy;
s5, comparing a system node voltage out-of-limit index and a branch tide flow load index with a power grid tide calculation key index, combining the characteristics of a power distribution network, carrying out scheme feasibility analysis on a power grid structure, equipment level, power supply capacity, intellectualization and green development, carrying out comparison selection and evaluation on each planning scheme from the aspects of power supply capacity, power supply reliability, operation efficiency and economy, and recommending an optimal scheme;
and S6, outputting a planning scheme.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116542496A (en) * | 2023-07-06 | 2023-08-04 | 国网江苏省电力有限公司南通供电分公司 | Power supply abnormal state analysis method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116542496A (en) * | 2023-07-06 | 2023-08-04 | 国网江苏省电力有限公司南通供电分公司 | Power supply abnormal state analysis method and system |
| CN116542496B (en) * | 2023-07-06 | 2023-09-22 | 国网江苏省电力有限公司南通供电分公司 | Power supply abnormal state analysis method and system |
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