CN112036816A - Intelligent evaluation method for power distribution network engineering cost - Google Patents
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Abstract
The invention discloses an intelligent evaluation method for the construction cost of a power distribution network, which comprises the following steps of S1, establishing a combined evaluation system: the invention relates to the technical field of power systems, in particular to a method for evaluating equipment required by power distribution network engineering independently, constructing a parameter system library and a cost model library combined by the independently evaluated equipment, and then establishing the combined parameter system library and the cost model library in a combined evaluation system. According to the intelligent evaluation method for the project cost of the power distribution network, the parameter system library and the cost model library which are combined by independent evaluation equipment are constructed, the project evaluation scheme of the power distribution network can be freely combined, meanwhile, the project evaluation scheme of the power distribution network formed by historical experience data and design parameter data is compared, and the evaluation scheme is selected by matching with the distinguishing characteristics of the evaluation scheme, so that the evaluation method can assist evaluation experts in quickly, accurately and intelligently evaluating the rationality of the project cost, innovate the evaluation mode, improve the evaluation efficiency, and efficiently and accurately guide the perfection and investment control of the project design scheme of the power distribution network.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to an intelligent evaluation method for the engineering cost of a power distribution network.
Background
The power distribution network is a power network which receives electric energy from a transmission network or a regional power plant and distributes the electric energy to various users on site through power distribution facilities or step by step according to voltage; the power distribution network consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators, accessory facilities and the like, and plays a role in distributing electric energy in a power network. A section of a power system which is exported from a step-down distribution substation (high-voltage distribution substation) to a user side is called a distribution system; a power distribution system is an electrical power network system that transforms voltage and distributes power directly to end users, consisting of a variety of distribution equipment (or components) and distribution facilities.
The method for evaluating the construction cost of the power distribution network project is characterized in that the conventional power distribution network project construction cost evaluation depends on the experience of an evaluation expert, a scientific, reasonable and effective evaluation standard is lacked, a free combination scheme cannot be freely carried out according to the power distribution network project, the intelligent degree is low, and the development of work such as power distribution network construction decision, project investment management and the like towards lean, standardized and intelligent directions is restricted to a certain extent.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an intelligent evaluation method for the project cost of a power distribution network, and solves the problems that a scientific, reasonable and effective evaluation standard is lacked and a free combination scheme cannot be performed according to the project of the power distribution network when the project cost of the power distribution network is evaluated.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an intelligent evaluation method for project cost of a power distribution network specifically comprises the following steps:
s1, establishing a combined review system: the method comprises the steps of carrying out independent evaluation on equipment required by power distribution network engineering, constructing a parameter system library and a cost model library combined by the independent evaluation equipment, and then establishing the combined parameter system library and the cost model library in a combined evaluation system, wherein the combined evaluation system comprises a retrieval unit, a selection unit, a combination unit and an engineering cost unit;
s2, establishing a history review system: collecting historical engineering design review experience data and design parameter data, creating the historical experience data and the design parameter data in a historical review system, and performing combing analysis on various engineering schemes and design parameter data, wherein the historical review system comprises a retrieval unit, a selection unit and an engineering cost unit;
s3, setting a cost evaluation scheme: the method comprises the steps that equipment needing power distribution network engineering cost enters a combined evaluation system, the needed power distribution network engineering cost equipment is retrieved by a retrieval unit, and is selected and combined by a selection unit and a combination unit, and then the engineering cost unit automatically displays the cost of the combined evaluation scheme;
s4, extracting a cost evaluation scheme: extracting the combined review scheme selected in the S3, entering a historical review system, retrieving the review scheme closest to the combined review scheme in the S3 through a retrieval unit, selecting the selection unit and the engineering cost unit, and automatically displaying the cost of the combined review scheme;
s5, analyzing the manufacturing cost evaluation scheme: at this time, the two cost evaluation schemes compared in the step S4 are compared to display the distinguishing characteristics of the two cost evaluation schemes, the distinguishing characteristics of the two cost evaluation schemes are analyzed independently, the advantages and disadvantages of the distinguishing characteristics of the two cost evaluation schemes are annotated, the cost difference value of the two cost evaluation schemes is displayed, and the two cost evaluation schemes are selected according to requirements.
Preferably, the retrieval units in S1 and S2 are used for retrieving the devices required by the power distribution network project, and the retrieval can be performed through keywords.
Preferably, the selection units in S1 and S2 are used to select the devices required by the power distribution network project, which are displayed after being retrieved by the retrieval unit, and the devices can be manually selected through a touch screen.
Preferably, the combination unit in S1 is used to combine the devices required by the power distribution network project after being selected by the selection unit, and the combination form is automatically adjusted.
Preferably, the construction cost units in S1 and S2 are used for displaying the construction cost of the power distribution network engineering review scheme after the combination units are automatically combined, and the construction cost is displayed in bold font.
Preferably, when the construction cost review scheme in S3 is set, the construction costs are retrieved, selected, combined and displayed and then automatically combined into a complete review scheme identical to S4.
Preferably, the search unit in S4 selects the review scheme closest to the combined review scheme of the type in S3 according to the maximum number of the common features.
Preferably, in S5, when the superiority and inferiority of the distinguishing features of the two cost evaluation schemes are released, the marking is performed by using a bold font.
(III) advantageous effects
The invention provides an intelligent evaluation method for the project cost of a power distribution network. Compared with the prior art, the method has the following beneficial effects: the intelligent evaluation method for the construction cost of the power distribution network comprises the following steps of S3, setting a construction cost evaluation scheme: the method comprises the steps that equipment needing power distribution network engineering cost enters a combined evaluation system, the needed power distribution network engineering cost equipment is retrieved by a retrieval unit, and is selected and combined by a selection unit and a combination unit, and then the engineering cost unit automatically displays the cost of the combined evaluation scheme; s4, extracting a cost evaluation scheme: extracting the combined review scheme selected in the S3, entering a historical review system, retrieving the review scheme closest to the combined review scheme in the S3 through a retrieval unit, selecting the selection unit and the engineering cost unit, and automatically displaying the cost of the combined review scheme; s5, analyzing the manufacturing cost evaluation scheme: at this time, the two cost review programs compared in S4 are compared, and the distinguishing characteristics of the two cost review programs are displayed, and the difference of the two cost evaluation schemes is analyzed separately, the advantages and disadvantages of the difference characteristics of the two cost evaluation schemes are annotated, the cost difference of the two cost evaluation schemes is displayed, the evaluation method can be selected according to the needs, the evaluation scheme of the power distribution network engineering can be freely combined by constructing a parameter system library and a cost model library which are combined by independent evaluation equipment, meanwhile, a power distribution network engineering review scheme formed by historical experience data and design parameter data is compared, and the power distribution network engineering review scheme is selected by matching with the distinguishing characteristics of the review scheme, so that the method can assist review experts in evaluating the reasonability of engineering cost quickly, accurately and intelligently, innovate a review mode, improve review efficiency, and efficiently and accurately guide the perfection of the power distribution network engineering design scheme and investment control.
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FIG. 1 is a flow chart of the intelligent evaluation method for the engineering cost of the power distribution network.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a technical solution: an intelligent evaluation method for project cost of a power distribution network specifically comprises the following steps:
s1, establishing a combined review system: the method comprises the steps of independently evaluating equipment required by power distribution network engineering, constructing a parameter system library and a cost model library combined by the independently evaluating equipment, and then establishing the combined parameter system library and the cost model library in a combined evaluation system, wherein the combined evaluation system comprises a retrieval unit, a selection unit, a combination unit and an engineering cost unit, the combined evaluation system is controlled by a central processing unit, and the model of the central processing unit is an ARM9 series microprocessor;
s2, establishing a history review system: collecting historical engineering design review experience data and design parameter data, creating the historical experience data and the design parameter data in a historical review system, and performing combing analysis on various engineering schemes and design parameter data, wherein the historical review system comprises a retrieval unit, a selection unit and an engineering cost unit, the historical review system is controlled by a central processing unit, and the model of the central processing unit is an ARM9 series microprocessor;
s3, setting a cost evaluation scheme: the method comprises the steps that equipment needing power distribution network engineering cost enters a combined evaluation system, the needed power distribution network engineering cost equipment is retrieved by a retrieval unit, and is selected and combined by a selection unit and a combination unit, and then the engineering cost unit automatically displays the cost of the combined evaluation scheme;
s4, extracting a cost evaluation scheme: extracting the combined review scheme selected in the S3, entering a historical review system, retrieving the review scheme closest to the combined review scheme in the S3 through a retrieval unit, selecting the selection unit and the engineering cost unit, and automatically displaying the cost of the combined review scheme;
s5, analyzing the manufacturing cost evaluation scheme: at this time, the two cost evaluation schemes compared in the step S4 are compared to display the distinguishing characteristics of the two cost evaluation schemes, the distinguishing characteristics of the two cost evaluation schemes are analyzed independently, the advantages and disadvantages of the distinguishing characteristics of the two cost evaluation schemes are annotated, the cost difference value of the two cost evaluation schemes is displayed, and the two cost evaluation schemes are selected according to requirements.
In the invention, the retrieval units in S1 and S2 are used for retrieving equipment required by power distribution network engineering and can perform retrieval through keywords.
In the invention, the selection units in S1 and S2 are used for selecting the equipment required by the power distribution network project and displayed after the retrieval by the retrieval unit, and the equipment can be manually selected through the touch screen.
In the invention, the combination unit in S1 is used for combining the equipment required by the power distribution network project after being selected by the selection unit, and the combination form is automatically adjusted.
In the invention, the project cost units in S1 and S2 are used for displaying the cost of the power distribution network project review scheme after the combination units are automatically combined, and the cost is displayed by bold fonts.
In the invention, when the construction cost evaluation scheme in the S3 is set, the construction cost can be automatically combined into a complete evaluation scheme which is the same as the S4 after the construction cost is retrieved, selected, combined and displayed.
In the present invention, the search unit in S4 selects the review scheme closest to the combined review scheme of the type in S3 according to the condition that the number of the common features is the largest.
In the invention, when the superior and inferior characteristics of the two cost evaluation schemes are released in S5, the schemes are marked by bold font.
In conclusion, by constructing the parameter system library and the cost model library which are combined by the independent evaluation equipment, the power distribution network engineering review scheme can be freely combined, meanwhile, the power distribution network engineering review scheme formed by historical experience data and design parameter data is compared, and the power distribution network engineering review scheme is selected by matching with the distinguishing characteristics of the review scheme, so that the method can assist review experts in quickly, accurately and intelligently evaluating the reasonability of the engineering cost of the project, innovating the review mode, improving the review efficiency, and efficiently and accurately guiding the perfection and investment control of the power distribution network engineering design scheme.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The intelligent evaluation method for the project cost of the power distribution network is characterized by comprising the following steps of: the method specifically comprises the following steps:
s1, establishing a combined review system: the method comprises the steps of carrying out independent evaluation on equipment required by power distribution network engineering, constructing a parameter system library and a cost model library combined by the independent evaluation equipment, and then establishing the combined parameter system library and the cost model library in a combined evaluation system, wherein the combined evaluation system comprises a retrieval unit, a selection unit, a combination unit and an engineering cost unit;
s2, establishing a history review system: collecting historical engineering design review experience data and design parameter data, creating the historical experience data and the design parameter data in a historical review system, and performing combing analysis on various engineering schemes and design parameter data, wherein the historical review system comprises a retrieval unit, a selection unit and an engineering cost unit;
s3, setting a cost evaluation scheme: the method comprises the steps that equipment needing power distribution network engineering cost enters a combined evaluation system, the needed power distribution network engineering cost equipment is retrieved by a retrieval unit, and is selected and combined by a selection unit and a combination unit, and then the engineering cost unit automatically displays the cost of the combined evaluation scheme;
s4, extracting a cost evaluation scheme: extracting the combined review scheme selected in the S3, entering a historical review system, retrieving the review scheme closest to the combined review scheme in the S3 through a retrieval unit, selecting the selection unit and the engineering cost unit, and automatically displaying the cost of the combined review scheme;
s5, analyzing the manufacturing cost evaluation scheme: at this time, the two cost evaluation schemes compared in the step S4 are compared to display the distinguishing characteristics of the two cost evaluation schemes, the distinguishing characteristics of the two cost evaluation schemes are analyzed independently, the advantages and disadvantages of the distinguishing characteristics of the two cost evaluation schemes are annotated, the cost difference value of the two cost evaluation schemes is displayed, and the two cost evaluation schemes are selected according to requirements.
2. The power distribution network project cost intelligent review method according to claim 1, characterized in that: the retrieval units in S1 and S2 are used for retrieving the equipment required by the power distribution network project and can perform retrieval through keywords.
3. The power distribution network project cost intelligent review method according to claim 1, characterized in that: the selection units in the S1 and the S2 are used for selecting the equipment required by the power distribution network project and displayed after the equipment is retrieved by the retrieval unit, and the equipment can be manually selected through a touch screen.
4. The power distribution network project cost intelligent review method according to claim 1, characterized in that: and the combination unit in the S1 is used for combining the equipment required by the power distribution network project after the selection unit selects, and the combination form is automatically adjusted.
5. The power distribution network project cost intelligent review method according to claim 1, characterized in that: and the engineering cost units in the S1 and the S2 are used for displaying the cost of the power distribution network engineering review scheme after the combination units are automatically combined, and the cost is displayed by bold fonts.
6. The power distribution network project cost intelligent review method according to claim 1, characterized in that: when the construction cost review scheme in the S3 is set, the construction cost can be automatically combined into a complete review scheme which is the same as that in the S4 after the construction cost is retrieved, selected, combined and displayed.
7. The power distribution network project cost intelligent review method according to claim 1, characterized in that: and when the searching unit in the S4 selects the review scheme closest to the combined review scheme of the type in the S3, the selected basis is that the number of the common characteristics is the largest.
8. The power distribution network project cost intelligent review method according to claim 1, characterized in that: and when the superior and inferior advantages of the distinguishing features of the two cost evaluation schemes are released in the step S5, the marking is carried out by adopting bold fonts.
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