CN112396336A - Intelligent evaluation system and evaluation method for power transmission and transformation project cost - Google Patents
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Abstract
The invention relates to an intelligent evaluation system for construction cost of power transmission and transformation projects, which comprises a data entry module, a first analysis module, a second analysis module, a third analysis module, a data center and an early warning and output module, wherein the data entry module is used for recording data; the data input module realizes the input of the power transmission and transformation project information; the data center stores historical cost data of power transmission and transformation, general cost, standard reference price and equipment material price; the first analysis module, the second analysis module and the third analysis module acquire power transmission and transformation project benchmark data, deviation analysis is carried out on the project cost data and the benchmark data, and if the deviation exceeds a certain proportion, abnormal data are marked; and transmitting the abnormal result obtained by analysis to an early warning and output module. The invention can fully consider factors such as design scheme, historical construction cost data, market price fluctuation and the like, and reasonably determine the construction cost level of the power transmission and transformation project.
Description
Technical Field
The invention belongs to the technical field of electric power system construction cost, and particularly relates to an intelligent evaluation system and an intelligent evaluation method for power transmission and transformation construction cost.
Background
With the continuous and deep advance of a new round of electric power market reformation, the realization of accurate management and control of the construction cost of the power transmission and transformation project is the key of making effective assets of the real power grid. The accurate review and control of power transmission and transformation project cost faces multiple difficulties: firstly, the prices of equipment and materials are influenced by market supply and demand, and the volatility is high; secondly, the cost evaluation has no unified judgment standard; and thirdly, the construction cost is influenced by various factors such as terrain, geology, transportation, outsourcing and the like, so that great challenges are brought to construction cost evaluation personnel. The inaccurate construction cost not only brings higher balance rate and influences the efficiency assessment of the construction, but also causes certain investment waste and causes that the construction fund can not exert the maximum efficiency. Therefore, the method enhances the evaluation quality of the construction cost of the power transmission and transformation project, realizes that the construction cost is close to the actual investment to the maximum extent, and is one of the key work faced by technical staff.
Therefore, based on the problems, the intelligent power transmission and transformation project cost evaluation system and the evaluation method can be provided, which can fully consider factors such as design schemes, historical cost data and market price fluctuation and reasonably determine the cost level of the power transmission and transformation project, and have important practical significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an intelligent power transmission and transformation project cost evaluation system and an intelligent power transmission and transformation project cost evaluation method which can reasonably determine the cost level of a power transmission and transformation project by fully considering factors such as a design scheme, historical cost data, market price fluctuation and the like.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an intelligent evaluation system for construction cost of power transmission and transformation projects comprises a data entry module, a first analysis module, a second analysis module, a third analysis module, a data center and an early warning and output module;
the data input module is used for inputting the information of the power transmission and transformation project;
the data center stores historical power transmission and transformation cost data, general cost, standard reference price and equipment material price;
the first analysis module is connected with the data center to acquire the benchmark data of the power transmission and transformation project, the first analysis module performs deviation analysis on the data of the total construction cost level of the project and the benchmark data, and if the deviation exceeds a certain proportion, abnormal data is marked;
the first analysis module is connected with the second analysis module, and transmits an analysis result to the second analysis module, and the second analysis module further performs comparative analysis on the key indexes of the construction cost; the second analysis module is connected with the data center, acquires the key construction cost index benchmarking data of the power transmission and transformation project, performs deviation analysis on the construction cost data and the benchmarking data, and marks abnormal data if the deviation exceeds a certain proportion;
the second analysis module is connected with the third analysis module, and transmits an analysis result to the third analysis module, and the third analysis module performs comparative analysis on key equipment and material prices; the third analysis module is connected with the data center, acquires the power transmission and transformation engineering equipment and material price information post data, performs deviation analysis on the engineering equipment and material price and the post data, and marks abnormal data if the deviation exceeds a certain proportion;
the first analysis module, the second analysis module and the third analysis module are all connected with the early warning and output module, and abnormal results obtained through analysis are transmitted to the early warning and output module.
Further, the power transmission and transformation project information input by the data input module includes: the system comprises a power transformation scale, the number of incoming and outgoing lines, the number of GIS, the length of a cable line and the length of an overhead line; the data input module can be connected with the existing engineering design software or engineering cost system, such as Bowei cost software, Guangdong cost software and the like, and directly obtains the related engineering cost data; and the project cost file can also be directly imported, and the project cost file comprises excel version or software version cost files.
Furthermore, the data center can be connected with an existing power transmission and transformation project infrastructure management and control system, an ERP system, a material information system, project cost software and project design software to acquire relevant data information.
Further, the engineering cost deviation calculation method is as follows:
wherein, alpha is the deviation value of the construction cost, PiFor the total or individual construction cost, Pi' is the corresponding engineering standard cost.
Further, the key project cost indexes include: the unit capacity cost of the power transformation project, the unit area cost of the construction project, the unit length cost of the overhead line project and the unit linear meter cost of the cable line project; the key indexes of the construction cost can be further subdivided and screened according to the actual and review precision requirements of the engineering.
Further, the key devices and materials include: the equipment and the materials which need price comparison can be selected in a targeted manner according to market fluctuation conditions, such as a transformer, a GIS, a high-voltage switch cabinet, a steel structure, an inner wall, an outer wall, a power cable, a steel-cored aluminum stranded wire, an OPGW and the like.
An intelligent evaluation method for construction cost of power transmission and transformation projects comprises the following steps:
(1) collecting engineering cost data, including: historical cost data of power transmission and transformation, universal cost, standard reference price and equipment material price;
(2) acquiring cost data of the power transmission and transformation project to be evaluated;
(3) and (3) carrying out comparison analysis on the total construction cost, the construction project cost, the installation project cost, the equipment purchase cost and the total construction cost level of other expenses: performing deviation analysis on the engineering cost data and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(4) and (3) carrying out comparison analysis on key indexes of the construction cost: performing deviation analysis on the key construction cost index data of the project and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(5) carrying out comparative analysis on engineering equipment and material prices: performing deviation analysis on the engineering equipment and material prices and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(6) and outputting marked abnormal construction cost data and sending an early warning prompt.
The invention has the advantages and positive effects that:
the invention can fully consider the design scheme, the historical construction cost data, the market price fluctuation and the like, and reasonably determine the construction cost level of the power transmission and transformation project.
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The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
Fig. 1 is a block diagram of a power transmission and transformation project cost intelligent review system provided in an embodiment of the present invention;
FIG. 2 is a block flow diagram of an intelligent evaluation method for power transmission and transformation project cost provided in an embodiment of the present invention;
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be specifically described below by way of example, but all the descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1-2.
Fig. 1 is a block diagram of a power transmission and transformation project cost intelligent review system provided in an embodiment of the present invention; FIG. 2 is a block flow diagram of an intelligent evaluation method for power transmission and transformation project cost provided in an embodiment of the present invention; as shown in fig. 1-2, the intelligent evaluation system for the construction cost of the power transmission and transformation project provided by this embodiment includes a data entry module, a first analysis module, a second analysis module, a third analysis module, a data center, and an early warning and output module;
the data input module is used for inputting the information of the power transmission and transformation project;
the data center stores historical power transmission and transformation cost data, general cost, standard reference price and equipment material price;
the first analysis module is connected with the data center to acquire the benchmark data of the power transmission and transformation project, the first analysis module performs deviation analysis on the cost data reflecting the total cost level and the benchmark data, and if the deviation exceeds a certain proportion, abnormal data is marked;
taking the transformer substation project as an example, the general level analysis indexes of the common construction cost are shown in the following table:
the first analysis module is connected with the second analysis module, and transmits an analysis result to the second analysis module, and the second analysis module further performs comparative analysis on the key indexes of the construction cost; the second analysis module is connected with the data center, acquires the key construction cost index benchmarking data of the power transmission and transformation project, performs deviation analysis on the construction cost data and the benchmarking data, and marks abnormal data if the deviation exceeds a certain proportion;
taking substation engineering as an example, the key indexes of the common engineering cost are shown in the following table:
the second analysis module is connected with the third analysis module, and transmits an analysis result to the third analysis module, and the third analysis module performs comparative analysis on key equipment and material prices; the third analysis module is connected with the data center, acquires the power transmission and transformation engineering equipment and material price information post data, performs deviation analysis on the engineering equipment and material price and the post data, and marks abnormal data if the deviation exceeds a certain proportion;
and the third analysis module is connected with the early warning and output module and transmits the abnormal result obtained by analysis to the early warning and output module.
Further, the power transmission and transformation project information input by the data input module includes: the system comprises a power transformation scale, the number of incoming and outgoing lines, the number of GIS, the length of a cable line and the length of an overhead line; the data input module can be connected with the existing engineering design software or engineering cost system, such as Bowei cost software, Guangdong cost software and the like, and directly obtains the related engineering cost data; and the project cost file can also be directly imported, and the project cost file comprises excel version or software version cost files.
Furthermore, the data center can be connected with an existing power transmission and transformation project infrastructure management and control system, an ERP system, a material information system, project cost software and project design software to acquire relevant data information.
Further, the engineering cost deviation calculation method is as follows:
wherein, alpha is the deviation value of the construction cost, PiFor the total cost of the projectItem cost of construction, Pi' is the corresponding engineering standard cost.
Further, the four expenses are respectively construction engineering expenses, installation engineering expenses, equipment purchase expenses and other expenses.
Further, the key project cost indexes include: the unit capacity cost of the power transformation project, the unit area cost of the construction project, the unit length cost of the overhead line project and the unit linear meter cost of the cable line project; the key indexes of the construction cost can be further subdivided and screened according to the actual and review precision requirements of the engineering.
Further, the key devices and materials include: the equipment and the materials which need price comparison can be selected in a targeted manner according to market fluctuation conditions, such as a transformer, a GIS, a high-voltage switch cabinet, a steel structure, an inner wall, an outer wall, a power cable, a steel-cored aluminum stranded wire, an OPGW and the like.
An intelligent evaluation method for construction cost of power transmission and transformation projects comprises the following steps:
(1) collecting engineering cost data, including: historical cost data of power transmission and transformation, universal cost, standard reference price and equipment material price;
(2) acquiring cost data of the power transmission and transformation project to be evaluated;
(3) and (3) carrying out comparison analysis on the total construction cost, the construction project cost, the installation project cost, the equipment purchase cost and the total construction cost level of other expenses: performing deviation analysis on the engineering cost data and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(4) and (3) carrying out comparison analysis on key indexes of the construction cost: performing deviation analysis on the key construction cost index data of the project and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(5) carrying out comparative analysis on engineering equipment and material prices: performing deviation analysis on the engineering equipment and material prices and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(6) and outputting marked abnormal construction cost data and sending an early warning prompt.
The present invention has been described in detail with reference to the above examples, but the description is only for the preferred examples of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. The utility model provides a power transmission and transformation engineering cost intelligence system of reviewing which characterized in that: the system comprises a data entry module, a first analysis module, a second analysis module, a third analysis module, a data center and an early warning and output module;
the data input module is used for inputting the information of the power transmission and transformation project;
the data center stores historical power transmission and transformation cost data, general cost, standard reference price and equipment material price;
the first analysis module is connected with the data center to acquire the benchmark data of the power transmission and transformation project, the first analysis module performs deviation analysis on the data of the total construction cost level of the project and the benchmark data, and if the deviation exceeds a certain proportion, abnormal data are marked;
the first analysis module is connected with the second analysis module, and transmits an analysis result to the second analysis module, and the second analysis module further performs comparative analysis on the key indexes of the construction cost; the second analysis module is connected with the data center, acquires the key construction cost index benchmarking data of the power transmission and transformation project, performs deviation analysis on the construction cost data and the benchmarking data, and marks abnormal data if the deviation exceeds a certain proportion;
the second analysis module is connected with the third analysis module, and transmits an analysis result to the third analysis module, and the third analysis module performs comparative analysis on key equipment and material prices; the third analysis module is connected with the data center, acquires the power transmission and transformation engineering equipment and material price information post data, performs deviation analysis on the engineering equipment and material price and the post data, and marks abnormal data if the deviation exceeds a certain proportion;
the first analysis module, the second analysis module and the third analysis module are all connected with the early warning and output module, and abnormal results obtained through analysis are transmitted to the early warning and output module.
2. The intelligent evaluation system for the construction cost of the power transmission and transformation project, according to claim 1, is characterized in that: the power transmission and transformation project information input by the data input module comprises: the system comprises the following components of power transformation scale, incoming and outgoing line loop number, GIS number, cable line length and overhead line length.
3. The intelligent evaluation system for the construction cost of the power transmission and transformation project, according to claim 1, is characterized in that: the data center can be connected with an existing power transmission and transformation project infrastructure management and control system, an ERP system, a material information system, project cost software and project design software to acquire relevant data information.
4. The intelligent evaluation system for the construction cost of the power transmission and transformation project, according to claim 1, is characterized in that: the engineering cost deviation calculation method comprises the following steps:
wherein, alpha is the deviation value of the construction cost, PiFor the total or individual construction cost, Pi' is the corresponding engineering standard cost.
5. The intelligent evaluation system for the construction cost of the power transmission and transformation project, according to claim 1, is characterized in that: the key indexes of the engineering cost comprise: the unit capacity cost of the power transformation project, the unit area cost of the construction project, the unit length cost of the overhead line project and the unit linear meter cost of the cable line project.
6. The intelligent evaluation system for the construction cost of the power transmission and transformation project, according to claim 1, is characterized in that: the key equipment and materials comprise: transformer, GIS, high tension switchgear, steel construction, interior wall, outer wall, power cable, steel-cored aluminum strand wires, OPGW.
7. The method for reviewing the intelligent review system of the construction cost of the power transmission and transformation project as claimed in any one of claims 1 to 6, wherein: the method comprises the following steps:
(1) collecting engineering cost data, including: historical cost data of power transmission and transformation, universal cost, standard reference price and equipment material price;
(2) acquiring cost data of the power transmission and transformation project to be evaluated;
(3) and (3) carrying out comparison analysis on the total construction cost, the construction project cost, the installation project cost, the equipment purchase cost and the total construction cost level of other expenses: performing deviation analysis on the engineering cost data and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(4) and (3) carrying out comparison analysis on key indexes of the construction cost: performing deviation analysis on the key construction cost index data of the project and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(5) carrying out comparative analysis on engineering equipment and material prices: performing deviation analysis on the engineering equipment and material prices and the benchmark data acquired in the step (1), and marking abnormal data if the deviation exceeds a certain proportion;
(6) and outputting marked abnormal construction cost data and sending an early warning prompt.
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| CN113723771A (en) * | 2021-08-12 | 2021-11-30 | 成都联创天诚信息科技有限公司 | Government investment evaluation method and system |
| CN114580868A (en) * | 2022-02-22 | 2022-06-03 | 国网福建省电力有限公司 | Intelligent evaluation system based on capital construction project data |
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