CN113657800A - Planning scheme compiling method and device for distribution network project, computer equipment and medium - Google Patents
Planning scheme compiling method and device for distribution network project, computer equipment and medium Download PDFInfo
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Abstract
The invention discloses a planning scheme compiling method and device for a distribution network project, computer equipment and a medium. The method comprises the following steps: acquiring a current power grid edge layout, and generating a planning scheme diagram according to a drawing instruction fed back by a human-computer interaction interface; carrying out planning scheme verification on the planning scheme diagram, wherein the planning scheme verification comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification; and converting the planning scheme diagram verified by the planning scheme into a target format, and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format. By using the technical scheme of the invention, the distribution network project planning scheme can be compiled quickly and accurately.
Description
Technical Field
The embodiment of the invention relates to the technical field of power grid planning, in particular to a planning scheme compiling method and device for a distribution network project, computer equipment and a medium.
Background
The distribution network project is an engineering project for newly building or transforming lines and/or equipment, and the planning scheme of the distribution network project comprises a planning scheme diagram and relevant information of the distribution network project. In order to solve the problem of distribution network or improve the investment income of the power grid, planning schemes of different distribution network projects are needed to be worked out aiming at different distribution network problems, so that the distribution network projects are selected to be actually realized when the investment of the power grid construction is carried out subsequently.
At present, the planning scheme of the distribution network project is mainly implemented in paper drawings or CAD software by distribution network planning personnel according to a distribution network edge distribution diagram or a medium-voltage line single-line diagram. The distribution network project planning scheme compiling method is high in labor cost and low in efficiency, and the distribution network project involves calculation processes such as power failure range statistics, load prediction and load change correction, and manual calculation is difficult to guarantee the quality of distribution network project planning compiling results.
Disclosure of Invention
The embodiment of the invention provides a method and a device for compiling a planning scheme of a distribution network project, computer equipment and a medium, so as to realize the fast and accurate compilation of the planning scheme of the distribution network project.
In a first aspect, an embodiment of the present invention provides a method for compiling a planning scheme of a distribution network project, where the method includes:
acquiring a current power grid edge layout, and generating a planning scheme diagram according to a drawing instruction fed back by a human-computer interaction interface;
carrying out planning scheme verification on the planning scheme diagram, wherein the planning scheme verification comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification;
and converting the planning scheme diagram verified by the planning scheme into a target format, and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
In a second aspect, an embodiment of the present invention further provides a device for compiling a planning scheme of a distribution network project, where the device includes:
the planning scheme diagram generating module is used for acquiring a current power grid edge distribution diagram and generating a planning scheme diagram according to a drawing instruction fed back by the human-computer interaction interface;
the planning scheme diagram checking module is used for carrying out planning scheme checking on the planning scheme diagram, and the planning scheme checking comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification;
and the planning scheme generating module is used for converting the planning scheme diagram verified by the planning scheme into a target format and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
In a third aspect, an embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the program to implement the method for planning a distribution network project according to any one of the embodiments of the present invention.
In a fourth aspect, the embodiments of the present invention further provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for planning a distribution network project according to any one of the embodiments of the present invention.
According to the embodiment of the invention, a planning scheme diagram is generated on a current power grid edge layout according to a drawing instruction fed back by a human-computer interaction interface, the planning scheme diagram is verified, if the planning scheme diagram passes the verification, the planning scheme diagram is converted into a target format, and a planning scheme of a distribution network project is constructed according to the planning scheme diagram and the planning scheme diagram of the target format. The method solves the problems that the distribution network project planning scheme in the prior art is high in labor cost and low in efficiency, and the quality of the distribution network project planning result is difficult to guarantee through manual calculation, and realizes the fast and accurate distribution network project planning scheme.
Drawings
Fig. 1 is a flowchart of a planning scheme compilation method for a distribution network project according to a first embodiment of the present invention;
fig. 2 is a flowchart of a planning scheme compilation method for a distribution network project according to a second embodiment of the present invention;
fig. 3 is a flowchart of a planning scheme compilation method for a distribution network project according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a planning scheme compiling device for a distribution network project in a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer device in the fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a method for compiling a planning scheme of a distribution network project according to an embodiment of the present invention, where the embodiment is applicable to compiling a planning scheme of a distribution network project, and the method may be executed by a device for compiling a planning scheme of a distribution network project, where the device may be implemented by software and/or hardware and is generally integrated in a computer device.
As shown in fig. 1, the technical solution of the embodiment of the present invention specifically includes the following steps:
and S110, acquiring a current power grid edge layout, and generating a planning scheme diagram according to a drawing instruction fed back by the human-computer interaction interface.
The current power grid edge layout is generated according to the power grid topology connection relation on the specified date, power grid equipment ledger information, geographic information of the peripheral position where the power grid is located and the like. The embodiment of the invention provides the human-computer interaction interface, and a user can draw a planning scheme diagram on the current power grid edge layout through the human-computer interaction interface, and the planning scheme diagram is associated with the power grid equipment ledger information, the geographic information of the peripheral position of the power grid and the like.
Optionally, functions such as device modeling, line modeling, device ledger information query statistics, device positioning, distribution network project engineering quantity statistics and the like can be realized through the human-computer interaction interface. Specifically, according to a drawing instruction fed back by the human-computer interaction interface, equipment modeling and line modeling tools can be called to perform equipment modeling and line modeling. After the planning scheme diagram is drawn, according to an equipment query instruction fed back by the human-computer interaction interface, according to keywords, equipment types, user-defined conditions input by a user and the like, inquiring equipment ledger information according to power grid equipment ledger information associated with the planning scheme diagram, and displaying the inquired equipment ledger information to the human-computer interaction interface. And acquiring geographical position information associated with the equipment in the planning scheme diagram according to the equipment positioning instruction fed back by the man-machine interaction interface, and displaying the geographical position information to the man-machine interaction interface. According to a distribution network project engineering quantity statistical instruction fed back by the human-computer interaction interface, acquiring information such as the number of devices, distribution transformation capacity and line length corresponding to a planning scheme in the process of drawing the planning scheme by a user through the human-computer interaction interface, and displaying the information to the human-computer interaction interface.
In the embodiment of the invention, the drawing of the planning scheme diagram is realized through the human-computer interaction interface on the basis of the current power grid edge layout.
S120, carrying out planning scheme verification on the planning scheme diagram, wherein the planning scheme verification comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification.
The purpose of verifying the planning scheme of the planning scheme diagram is to check whether the planning scheme diagram has basic logic errors, whether the planning principle of the distribution network project is met or not, and whether other business rules are met or not, and the planning scheme diagram can be applied to a subsequent planning link after being verified by the planning scheme.
The power failure range verification means that whether the power failure range corresponding to the planning scheme diagram, the number of users affected by power failure, the user specification and the like meet requirements or not is verified. The load prediction verification refers to verifying the load conditions of the line and the distribution transformer of the planning scheme diagram. The planning principle verification means verifying whether the planning scheme diagram meets the regulations of a line, equipment type selection, a net rack wiring mode, a user access mode and the like. The fault load transfer verification means that N-1 verification is carried out on whether a line modified according to a planning scheme diagram meets the requirement of fault load transfer, the safety criterion of N-1 is an important criterion of power distribution network planning, and the power supply safety without load shedding is ensured through load transfer after N-1 faults occur in a main transformer, a feeder line and the like in a power distribution network by the aid of the N-1 safety criterion. The electric calculation verification refers to electric calculation verification of power grid load flow, power grid node voltage drop, power grid power supply reliability and the like after the planning scheme diagram is implemented.
Through carrying out the verification of the planning scheme on the planning scheme, whether the planning scheme is reasonable or not can be comprehensively verified from different dimensions, the manual workload of data calculation and verification is greatly reduced, and the important effect on the quality improvement of the planning scheme compilation result is played.
And S130, converting the planning scheme diagram verified by the planning scheme into a target format, and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
In the embodiment of the invention, according to the needs of the power grid planning service, the planning scheme diagram also needs to be converted into formats such as a single line diagram, a ring network diagram or an electrical wiring diagram through processing such as simplification and extraction of a main ring network structure, so that the planning scheme can be conveniently subjected to subsequent grid structure analysis, planning evaluation and verification and the like.
In the embodiment of the invention, the planning scheme diagram and the power grid diagram for target format conversion form the planning scheme of the distribution network project. The distribution network project planning scheme provided by the embodiment of the invention not only can intuitively reflect the connection relation of lines and equipment through the planning scheme diagram, but also can realize the inquiry of equipment ledger information, equipment positioning and the like, and can determine the power failure range, the operation load curve and the load prediction result of the lines and the equipment, and the engineering quantity statistical result according to the verification result of the planning scheme diagram.
According to the technical scheme of the embodiment, a planning scheme diagram is generated on a current power grid edge layout according to a drawing instruction fed back by a human-computer interaction interface, the planning scheme diagram is verified, if the planning scheme diagram passes the verification, the planning scheme diagram is converted into a target format, and a planning scheme of a distribution network project is constructed according to the planning scheme diagram and the planning scheme diagram of the target format. The method solves the problems that the distribution network project planning scheme in the prior art is high in labor cost and low in efficiency, and the quality of the distribution network project planning result is difficult to guarantee through manual calculation, and realizes the fast and accurate distribution network project planning scheme.
Example two
Fig. 2 is a flowchart of a planning scheme compilation method for a distribution network project according to a second embodiment of the present invention, which further embodies a process of generating a planning scheme diagram, a process of performing load prediction verification, planning principle verification, and fault load transfer verification on the planning scheme diagram on the basis of the second embodiment of the present invention.
Correspondingly, as shown in fig. 2, the technical solution of the embodiment of the present invention specifically includes the following steps:
and S210, acquiring a current power grid edge layout.
For example, a grid topology connection relationship, grid equipment ledger Information, and grid peripheral geographical location Information on a specified date provided by a grid GIS (Geographic Information System) System may be acquired, so as to create a current grid edge layout.
And S220, judging whether the drawing instruction fed back by the human-computer interaction interface is a line drawing instruction, if so, executing S230, and otherwise, executing S240.
And the drawing of lines and equipment can be realized through a human-computer interaction interface.
And S230, performing line modeling in the current power grid edge layout to generate a line model, and establishing an association relationship between the connection structure and the line model.
And when the user draws the line through the human-computer interaction interface, calling a line modeling tool according to a line drawing instruction fed back by the human-computer interaction interface. And the line modeling tool performs line modeling in the current power grid edge layout and establishes an incidence relation between an actual connection structure of the power grid line and the line model.
And S240, judging whether the drawing instruction fed back by the human-computer interaction interface is an equipment drawing instruction, if so, executing S250, and otherwise, executing S2150.
And when the user draws equipment through the human-computer interaction interface, calling an equipment modeling tool according to an equipment drawing instruction fed back by the human-computer interaction interface. And the equipment modeling tool carries out equipment modeling in the current power grid edge layout and establishes the actual connection structure of the power grid equipment and the incidence relation between the equipment ledger information and the equipment model.
And S250, modeling equipment in the current power grid edge layout to generate an equipment model, and establishing an association relation between the connection structure and the equipment ledger information and the equipment model.
And S260, judging whether drawing of the planning scheme diagram is finished, if so, executing S270, and if not, returning to execute S220.
After the planning plan diagram is drawn, verification of the planning plan diagram is performed. It should be noted that, in this embodiment, S270 to S2130 take the power outage range verification, the load prediction verification, the planning principle verification, the fault load transfer verification, and the electrical calculation verification for the planning plan diagram as examples, but the number, the verification type, and the verification manner for verifying the planning plan diagram are not limited in this embodiment.
And S270, checking the power failure range of the planning scheme diagram.
Specifically, the switch position requiring operation power failure can be determined by planning the conditions of the upstream power supply and the upstream and downstream switches in the plan diagram. And according to the analysis of the connection relation of the line topology by the switch position, counting the power failure range of the distribution network project, the number of users affected by the power failure range and the user details.
And S280, carrying out load prediction verification on the planning scheme diagram.
Specifically, a load prediction tool can be called to predict the increase of the electrical load of the planning scheme circuit and the distribution transformer.
Accordingly, S280 may further include:
and S281, acquiring the current load amount and the loading load increment of the load prediction object in the planning scheme diagram, and predicting to obtain the natural load increment according to the current load amount.
Wherein the load prediction object comprises at least one of: lines, distribution substations and substations.
In the embodiment of the invention, the electric load increase of the line and the distribution transformer can be calculated through the load prediction tool, so that the electric load condition of the line and the distribution transformer can be predicted. The power load increase mainly comprises a loading increment in the planning year of the distribution network project and a natural load increment estimated according to the current load and the natural increase rate. And the sum of the reported load increment and the natural load increment is the electric load increment of the line and the distribution transformer in the planning year of the distribution network project.
S282, the sum of the current load amount, the report load increment, and the natural load increment is used as the predicted load amount of the load prediction target.
The sum of the current load capacity, the reporting load increment and the natural load increment, namely the sum of the current load capacity and the power load increment, is the predicted load capacity of the line and the distribution transformer in the planning year of the distribution network project.
And S283, judging whether the predicted load quantity of the load prediction object meets the load prediction check condition, if so, executing S284, otherwise, executing S2120.
And if the predicted load capacity of the line and the distribution transformer is within the electric load bearing range of the power grid, the load prediction and verification conditions are met.
S284, determining whether the processing of all the load prediction objects is completed, if yes, executing S290, otherwise, returning to execute S281.
And only when all lines and distribution transformers in the planning scheme diagram meet the load prediction verification condition, the planning scheme diagram passes the load prediction verification.
And S290, verifying the planning principle of the planning scheme diagram.
Accordingly, S290 may further include:
and S291, acquiring a distribution network project planning guiding principle.
The distribution network project planning guiding principle comprises at least one of the following items: the system comprises a wire section regulation principle, an equipment selection regulation principle, a net rack wiring mode regulation principle and a user access mode regulation principle.
The distribution network project planning guiding principle is formed by solidifying some regulations in the distribution network project. For example, the conductor section specification principle may be that, for a 110 kv line which is responsible for the outgoing tasks of the power plant or is supplied with power from a special subscriber line, the conductor section should be considered in combination with the installed capacity of the power plant, the electrical load and the situation of its access system. The device model selection rule may be that a cable line with a wire cross section of 500 square millimeters is selected as the T-connection. The above is only an example of the distribution network project planning guiding principle, the distribution network project planning guiding principle is not limited to the example in this embodiment, and the guiding principle solidified in the distribution network planning process is within the protection scope of the present application.
And S292, judging whether the planning scheme diagram is matched with the distribution network project planning guiding principle, if so, executing S293, and otherwise, executing S2120.
And carrying out planning principle verification on the planning scheme diagram according to the set of the distribution network project planning guide principles.
And S293, determining that the planning scheme diagram passes the verification of the planning principle.
And S2100, carrying out fault load transfer verification on the planning scheme diagram.
Accordingly, S2100 may further include:
s2101, judge whether the number of the contact link of the target link in the plan view is greater than zero, if yes, carry out S2102, otherwise carry out S2120.
In the embodiment of the present invention, the target route in the planning scheme diagram is identified by the network frame connection method, specifically, a judgment rule may be generated by using structural features of various typical network frame connection structures, and the network frame connection structure of the target route is identified according to the judgment rule. According to the identification result of the net rack wiring structure, the number of the contact lines of the target line can be determined.
And when the number of the contact lines of the target line is zero, determining that the target line does not pass the fault load transfer verification.
And S2102, calculating the contact margin of the contact line.
And when the number of the connecting lines of the target line is more than zero, acquiring the safe current and the maximum current of each connecting line. And when the difference value between the safe current and the maximum current of the interconnection line is greater than or equal to zero, taking the difference value as the interconnection margin of the interconnection line.
And S2103, judging whether a transfer frequency condition exists or not, if so, executing S2104, and otherwise, executing S2107.
When the number-of-transshipment condition exists, the number of transshipment is generally set to be greater than zero and less than or equal to 2.
And S2104, selecting a transfer line from the interconnection lines according to the transfer times.
And when the transfer times condition exists, selecting the contact line with the maximum contact margin among all contact lines of the target line as the transfer line.
S2105, judging whether the current of the target line is smaller than or equal to the sum of the connection margins of the transfer line, if so, executing S2107, and otherwise, executing S2120.
And calculating the sum of the connection margins of the transfer lines, and if the current of the target line is less than or equal to the sum of the connection margins, determining that the target line passes fault load transfer verification.
S2106, judging whether the current of the target line is smaller than or equal to the sum of the contact margins of the contact lines, if so, executing S2107, and otherwise, executing S2120.
And when the transfer times condition does not exist, all the connection lines are used as transfer lines. And calculating the sum of the contact margins of all the contact lines, and if the current of the target line is less than or equal to the sum of the contact margins, determining that the target line passes fault load transfer verification.
S2107, determining that the target line passes the fault load transfer verification.
And S2108, judging whether the processing of all lines in the planning scheme diagram is finished, if so, executing S2110, and otherwise, returning to execute S2101.
When all lines in the planning scheme diagram pass the fault load transfer verification, the planning scheme diagram can be determined to pass the fault load transfer verification.
And S2110, performing electrical calculation verification on the planning scheme diagram.
Specifically, an electrical calculation tool can be called to perform electrical calculation verification on the power grid load flow, the power grid node voltage drop, the power grid power supply reliability and the like after the implementation of the planning scheme. The electric calculation is to calculate the voltage of each bus, the current and the power of each branch and the network loss of the steady-state operation of the power system according to the wiring mode, parameters and operation conditions of the power grid.
And S2120, determining that the planning scheme diagram does not pass the planning scheme verification.
And S2130, judging whether the planning scheme diagram passes the planning scheme verification, if so, executing S2140, and otherwise, executing S2150.
S2140, the planning scheme diagram verified by the planning scheme is converted into a target format, and a planning scheme of the distribution network project is generated according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
When the planning scheme diagram passes the verification of the planning scheme, the planning scheme diagram is simplified and converted into drawings in other formats such as a single line diagram, a ring network diagram, an electric wiring diagram and the like according to the topological connection relation, the equipment account information and the like of the power grid planning scheme, and the drawings in all formats are summarized to generate the planning scheme of the distribution network project.
And S2150, ending.
According to the technical scheme of the embodiment, equipment modeling or line modeling is carried out according to a drawing instruction fed back by a human-computer interaction interface on a current power grid edge layout, a planning scheme diagram is generated, power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification are carried out on the planning scheme diagram, if the planning scheme diagram passes all verification, the planning scheme diagram is converted into a target format, and a planning scheme of a distribution network project is constructed according to the planning scheme diagram and the planning scheme diagram of the target format. The method solves the problems that the distribution network project planning scheme in the prior art is high in labor cost and low in efficiency, and the quality of the distribution network project planning result is difficult to guarantee through manual calculation, and realizes the fast and accurate distribution network project planning scheme.
EXAMPLE III
Fig. 3 is a flowchart of a method for compiling a planning scheme of a distribution network project according to a third embodiment of the present invention, and this embodiment adds a process of comparing multiple candidate planning schemes of a distribution network project to determine a planning scheme corresponding to the distribution network project on the basis of the third embodiment.
Correspondingly, as shown in fig. 3, the technical solution of the embodiment of the present invention specifically includes the following steps:
and S310, acquiring a current power grid edge layout, and generating a planning scheme diagram according to a drawing instruction fed back by the human-computer interaction interface.
And S320, carrying out planning scheme verification on the planning scheme diagram. The planning scheme verification comprises at least one of: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification.
And S330, converting the planning scheme diagram verified by the planning scheme into a target format, and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
In the embodiment of the present invention, the technical solutions of S310 to S330 are adopted to compile a planning scheme of a distribution network project, which is not described herein again.
And S340, acquiring at least two candidate planning schemes of the distribution network project.
For the distribution network project, a plurality of candidate planning schemes of different outlet power supplies, different outlet paths, different net rack wiring and the like can be drawn, the project quantity, the investment cost, the project implementation effect, the project economic evaluation effect, the power supply reliability calculation result and the like of each candidate planning scheme are evaluated, the optimal planning scheme is selected, and the project investment benefit can be improved.
And S350, respectively calculating index scores of the candidate planning schemes under at least one evaluation index, and calculating the scores of the candidate planning schemes according to the index scores and the weights of the evaluation indexes.
The evaluation index includes: investment value, implementation effect, investment profitability and power supply reliability.
In the embodiment of the invention, index weights are preset for different evaluation indexes, and after the index scores of the candidate planning schemes under the evaluation indexes are determined, the scores of the candidate planning schemes are calculated according to the index scores and the index weights of the indexes.
Specifically, the investment value refers to the investment cost of the candidate planning scheme, and the implementation effect can be embodied by the index improvement degree of the project index of the candidate planning scheme, for example, the project index of the medium-voltage distribution network project may include the distribution network rotatable power supply rate and the feeder automation effective coverage rate, and the project index of the low-voltage distribution network project may include the overload distribution transformation ratio, the pre-overload distribution transformation ratio and the voltage lower public station area ratio. The index improvement degree of the project index can be embodied by the difference between the planning index value of the candidate planning scheme and the current index value, and the current index value can be obtained by the project information of the candidate distribution network project. For the planning index value, in the planning index value of the medium-voltage distribution network project, the distribution network transferable power supply rate can be calculated according to the ratio of the sum of the total number of the current transferable public lines and the newly-added transferable power supply lines to the sum of the total number of the current public lines and the newly-added substation outgoing lines. The feeder automation effective coverage rate can be calculated according to the ratio of the sum of the existing feeder automation effective coverage lines and the newly added feeder automation effective coverage lines to the sum of the existing public line total return number and the newly added substation outgoing line number. In the planning index value of the low-voltage distribution network project, the overload distribution and transformation ratio can be calculated according to the difference value between the number of the current overload public distribution and transformation stations and the number of the solution overload distribution and transformation stations and the ratio of the sum of the total number of the current overload public distribution and transformation stations and the number of the newly added public distribution and transformation stations. The pre-overload distribution ratio can be calculated according to the difference value between the number of the current pre-overload public distribution transformers and the number of the solution pre-overload distribution transformers and the ratio of the sum of the total number of the current public distribution transformers and the number of the newly added public distribution transformers. The proportion of the lower-voltage public distribution areas can be calculated according to the difference value of the current lower-voltage public distribution areas and the number of the lower-voltage distribution transformer areas and the ratio of the sum of the current public distribution transformer total number and the newly added public distribution transformer number.
The investment profitability is a ratio between the investment profitability and the investment cost of the candidate planning scheme, and illustratively, after the index improvement degree of the project index of the candidate planning scheme is calculated, the contribution degree of the project index is calculated according to the sum of products of the weight of each project index and the index improvement degree, and the ratio between the contribution degree of the project index and the investment cost is used as the investment profitability.
For the power supply reliability, the reliability evaluation result of each candidate planning scheme can be obtained by calling a theoretical reliability calculation algorithm of an electric calculation tool.
Optionally, after the index score of each evaluation index is obtained, normalization processing may be performed on the index score of each evaluation index.
And S360, taking the candidate planning scheme with the highest score as the planning scheme of the distribution network project.
The candidate planning scheme with the highest score is used as the planning scheme of the distribution network project, so that the candidate planning scheme is quantitatively evaluated from multiple dimensions, and the investment benefit of the planning project is promoted to be improved.
According to the technical scheme of the embodiment, a planning scheme diagram is generated on a current power grid edge layout according to a drawing instruction fed back by a human-computer interaction interface, the planning scheme diagram is verified, if the planning scheme diagram passes the verification, the planning scheme diagram is converted into a target format, a planning scheme of a distribution network project is constructed according to the planning scheme diagram and the planning scheme diagram of the target format, when a plurality of candidate planning schemes exist in the distribution network project, scores of the candidate planning schemes are calculated according to evaluation indexes, and the candidate planning scheme with the highest score is used as the planning scheme of the distribution network project. The method solves the problems that the distribution network project planning scheme in the prior art is high in labor cost and low in efficiency, and the quality of the distribution network project planning result is difficult to guarantee through manual calculation, and realizes the fast and accurate distribution network project planning scheme.
Example four
Fig. 4 is a schematic structural diagram of a distribution network project planning scheme compiling device according to a fourth embodiment of the present invention, where the device includes: a planning plan map generation module 410, a planning plan map verification module 420 and a planning plan generation module 430. Wherein:
the planning scheme diagram generating module 410 is used for acquiring a current power grid edge layout diagram and generating a planning scheme diagram according to a drawing instruction fed back by a human-computer interaction interface;
a planning plan diagram checking module 420, configured to perform planning plan checking on the planning plan diagram, where the planning plan checking includes at least one of: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification;
and the planning scheme generating module 430 is configured to convert the planning scheme diagram verified by the planning scheme into a target format, and generate a planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram in the target format.
According to the technical scheme of the embodiment, a planning scheme diagram is generated on a current power grid edge layout according to a drawing instruction fed back by a human-computer interaction interface, the planning scheme diagram is verified, if the planning scheme diagram passes the verification, the planning scheme diagram is converted into a target format, and a planning scheme of a distribution network project is constructed according to the planning scheme diagram and the planning scheme diagram of the target format. The method solves the problems that the distribution network project planning scheme in the prior art is high in labor cost and low in efficiency, and the quality of the distribution network project planning result is difficult to guarantee through manual calculation, and realizes the fast and accurate distribution network project planning scheme.
On the basis of the above embodiment, the planning scheme diagram generating module 410 includes:
the line modeling unit is used for performing line modeling in the current power grid edge layout if the drawing instruction fed back by the human-computer interaction interface is a line drawing instruction, generating a line model and establishing an incidence relation between the connection structure and the line model;
and the equipment modeling unit is used for modeling equipment in the current power grid edge layout if the drawing instruction fed back by the human-computer interaction interface is an equipment drawing instruction, generating an equipment model and establishing an association relationship between the connection structure and the equipment ledger information and the equipment model.
On the basis of the above embodiment, the planning scheme diagram checking module 420 includes:
the natural load increment obtaining unit is used for obtaining the current load quantity and the loading load increment of the load prediction object in the planning scheme diagram and obtaining the natural load increment according to the current load quantity prediction; wherein the load prediction object comprises at least one of: lines, distribution substations and substations;
a predicted load amount determination unit configured to determine a sum of the current load amount, the installation load increment, and the natural load increment as a predicted load amount of the load prediction target;
and the load prediction verification unit is used for returning and executing the operation of acquiring the current load quantity and the loading increment of the load prediction object in the planning scheme diagram until the processing of all the load prediction objects in the planning scheme diagram is finished if the predicted load quantity of the load prediction object meets the load prediction verification condition.
On the basis of the above embodiment, the planning scheme diagram checking module 420 includes:
the planning principle verification unit is used for acquiring a distribution network project planning guiding principle, and if the planning scheme diagram is matched with the distribution network project planning guiding principle, the planning scheme diagram is verified through the planning principle;
the distribution network project planning guiding principle comprises at least one of the following items: the system comprises a wire section regulation principle, an equipment selection regulation principle, a net rack wiring mode regulation principle and a user access mode regulation principle.
On the basis of the above embodiment, the planning scheme diagram checking module 420 includes:
the contact margin calculation unit is used for calculating the contact margin of the contact lines if the number of the contact lines of the target line in the planning scheme diagram is greater than zero;
the first fault load transfer verification unit is used for selecting a transfer line in the connecting line according to the transfer times if the condition of the transfer times is determined to exist, and determining that the target line passes the fault load transfer verification if the current of the target line is less than or equal to the sum of the contact margins of the transfer line;
the second fault load transfer verification unit is used for determining that the target line passes the fault load transfer verification if the condition of the transfer times does not exist and the current of the target line is less than or equal to the sum of the contact margins of the contact lines;
and the return condition judgment unit is used for returning and executing the operation of judging whether the number of the contact lines of the target line in the planning scheme diagram is greater than zero until the processing of all lines in the planning scheme diagram is finished.
On the basis of the above embodiment, the apparatus further includes:
the candidate planning scheme acquisition module is used for acquiring at least two candidate planning schemes of the distribution network project;
and the distribution network project planning scheme determining module is used for calculating the scores of the candidate planning schemes and taking the candidate planning scheme with the highest score as the planning scheme of the distribution network project.
On the basis of the above embodiment, the distribution network project planning scheme determining module includes:
the candidate planning scheme score calculating unit is used for calculating index scores of the candidate planning schemes under at least one evaluation index respectively and calculating the scores of the candidate planning schemes according to the index scores and the weights of the evaluation indexes;
the evaluation index includes: investment value, implementation effect, investment profitability and power supply reliability.
The planning scheme compiling device for the distribution network project provided by the embodiment of the invention can execute the planning scheme compiling method for the distribution network project provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a computer apparatus according to a fifth embodiment of the present invention, as shown in fig. 5, the computer apparatus includes a processor 70, a memory 71, an input device 72, and an output device 73; the number of processors 70 in the computer device may be one or more, and one processor 70 is taken as an example in fig. 5; the processor 70, the memory 71, the input device 72 and the output device 73 in the computer apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 5.
The memory 71 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as modules corresponding to the planning scheme creating method for the distribution network project in the embodiment of the present invention (for example, the planning scheme diagram generating module 410, the planning scheme diagram verifying module 420, and the planning scheme generating module 430 in the planning scheme creating apparatus for the distribution network project). The processor 70 executes various functional applications and data processing of the computer device by running software programs, instructions and modules stored in the memory 71, so as to implement the planning scheme preparation method of the distribution network project. The method comprises the following steps:
acquiring a current power grid edge layout, and generating a planning scheme diagram according to a drawing instruction fed back by a human-computer interaction interface;
carrying out planning scheme verification on the planning scheme diagram, wherein the planning scheme verification comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification;
and converting the planning scheme diagram verified by the planning scheme into a target format, and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
The memory 71 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 71 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 71 may further include memory located remotely from the processor 70, which may be connected to a computer device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 72 may be used to receive input numeric or character information and generate key signal inputs relating to user settings and function controls of the computer apparatus. The output device 73 may include a display device such as a display screen.
EXAMPLE six
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are executed by a computer processor to perform a method for planning a distribution network project, where the method includes:
acquiring a current power grid edge layout, and generating a planning scheme diagram according to a drawing instruction fed back by a human-computer interaction interface;
carrying out planning scheme verification on the planning scheme diagram, wherein the planning scheme verification comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification;
and converting the planning scheme diagram verified by the planning scheme into a target format, and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
Of course, the storage medium containing the computer-executable instructions provided in the embodiments of the present invention is not limited to the above-described method operations, and may also perform related operations in the planning scheme compilation method for a distribution network project provided in any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the distribution network project planning scheme compiling device, each unit and each module included in the distribution network project planning scheme compiling device are only divided according to functional logic, but are not limited to the above division, as long as corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A planning scheme compilation method for a distribution network project is characterized by comprising the following steps:
acquiring a current power grid edge layout, and generating a planning scheme diagram according to a drawing instruction fed back by a human-computer interaction interface;
carrying out planning scheme verification on the planning scheme diagram, wherein the planning scheme verification comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification;
and converting the planning scheme diagram verified by the planning scheme into a target format, and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
2. The method of claim 1, wherein generating a planning plan graph according to the drawing instruction fed back by the human-machine interaction interface comprises:
if the drawing instruction fed back by the human-computer interaction interface is a line drawing instruction, performing line modeling in the current power grid edge layout to generate a line model, and establishing an incidence relation between the connection structure and the line model;
and if the drawing instruction fed back by the human-computer interaction interface is an equipment drawing instruction, equipment modeling is carried out in the current power grid edge layout to generate an equipment model, and an association relation is established between the connection structure and the equipment ledger information and the equipment model.
3. The method of claim 1, wherein the load forecast verification of the planning plan graph comprises:
acquiring the current load capacity and the loading load increment of a load prediction object in a planning scheme diagram, and predicting to obtain a natural load increment according to the current load capacity; wherein the load prediction object comprises at least one of: lines, distribution substations and substations;
taking the sum of the current load capacity, the reporting load increment and the natural load increment as a predicted load capacity of a load prediction object;
and if the predicted load capacity of the load prediction object meets the load prediction verification condition, returning to execute the operation of acquiring the current load capacity and the loading increment of the load prediction object in the planning scheme diagram until the processing of all the load prediction objects in the planning scheme diagram is completed.
4. The method of claim 1, wherein performing a planning principle check on a planning plan graph comprises:
acquiring a distribution network project planning guiding principle, and if the planning scheme diagram is matched with the distribution network project planning guiding principle, determining that the planning scheme diagram passes the verification of the planning principle;
the distribution network project planning guiding principle comprises at least one of the following items: the system comprises a wire section regulation principle, an equipment selection regulation principle, a net rack wiring mode regulation principle and a user access mode regulation principle.
5. The method of claim 1, wherein performing a fault load transfer verification on the planning plan graph comprises:
if the number of the contact lines of the target line in the planning scheme diagram is larger than zero, calculating the contact margin of the contact lines;
if the condition of the number of times of transfer is determined to exist, selecting a transfer line in the connecting line according to the number of times of transfer, and if the current of the target line is less than or equal to the sum of the connection margins of the transfer line, determining that the target line passes fault load transfer verification;
if the condition of the number of times of transfer is determined to be absent and the current of the target line is less than or equal to the sum of the contact margins of the contact lines, determining that the target line passes fault load transfer verification;
and returning to execute the operation of judging whether the number of the contact lines of the target line in the planning scheme diagram is larger than zero or not until the processing of all lines in the planning scheme diagram is finished.
6. The method of any of claims 1-5, wherein after generating the plan for the distribution network project, further comprising:
acquiring at least two candidate planning schemes of a distribution network project;
and calculating the scores of the candidate planning schemes, and taking the candidate planning scheme with the highest score as the planning scheme of the distribution network project.
7. The method of claim 6, wherein calculating a score for each candidate planning solution comprises:
respectively calculating index scores of the candidate planning schemes under at least one evaluation index, and calculating the scores of the candidate planning schemes according to the index scores and the weights of the evaluation indexes;
the evaluation index includes: investment value, implementation effect, investment profitability and power supply reliability.
8. A planning scheme compiling device for a distribution network project is characterized by comprising the following components:
the planning scheme diagram generating module is used for acquiring a current power grid edge distribution diagram and generating a planning scheme diagram according to a drawing instruction fed back by the human-computer interaction interface;
the planning scheme diagram checking module is used for carrying out planning scheme checking on the planning scheme diagram, and the planning scheme checking comprises at least one of the following items: the method comprises the following steps of power failure range verification, load prediction verification, planning principle verification, fault load transfer verification and electrical calculation verification;
and the planning scheme generating module is used for converting the planning scheme diagram verified by the planning scheme into a target format and generating the planning scheme of the distribution network project according to the planning scheme diagram verified by the planning scheme and the planning scheme diagram of the target format.
9. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, implements a method for planning a distribution network project according to any of claims 1-7.
10. A storage medium containing computer executable instructions for performing the method of planning a distribution network project according to any one of claims 1-7 when executed by a computer processor.
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