Method, device and equipment for predicting reasonable construction period of substation construction and medium

Abstract

The invention belongs to the technical field of substation construction, and particularly relates to a method, device and equipment for predicting the reasonable construction period of substation construction and a medium. According to the method, firstly, the type of a substation project with the reasonable construction period to be predicted is determined, a corresponding reasonable construction period prediction model is selected according to the type of a substation, and the model comprises a project early stage reasonable construction period prediction model and a project construction stage construction period prediction model. Specific prediction models are established for different types of transformer substation projects, the method can be applied to different types of transformer substation projects, the reasonable construction period of transformer substation construction is predicted more accurately, and the reasonable construction period prediction capacity and the application level of power transmission and transformation projects are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of substation construction, and in particular relates to a method, device, equipment and medium for predicting a reasonable construction period of a substation. Background Art

[0002] With the rapid development of the power industry and the acceleration of urbanization, substations are a vital component of the power system, and their construction quality and efficiency are directly related to the stability and reliability of the power system. However, in the actual construction process, the construction period prediction of substation projects often faces many challenges. In substation construction, due to the influence of various factors such as project type, scale, region, and geography, the actual construction period of the project is often quite different from the reasonable construction period stipulated in the progress plan management method. This difference often leads to the problem of too long construction period in actual construction, which not only increases the project cost, but also may affect the safe and stable operation of the power grid system.

[0003] Traditional construction period prediction methods are often based on empirical estimation or analogy analysis. Although these methods are simple and easy to implement, they lack scientificity and accuracy and are difficult to meet the high-precision requirements of modern power engineering construction for construction period prediction. Therefore, it is necessary to carry out research on reasonable construction period prediction technology for power transmission and transformation projects to improve the accuracy of construction period prediction and provide more powerful support for power engineering construction. Summary of the invention

[0004] The purpose of the present invention is to provide a method, device, equipment and medium for predicting a reasonable construction period for substation construction, so as to solve the problem of inaccurate prediction of a reasonable construction period for power transmission and transformation projects in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: In a first aspect, the present invention provides a method for predicting a reasonable construction period of a substation, comprising the following steps: Quantify the substation project by project duration, and divide the substation project into the pre-project stage and the project construction stage; Determine the type of substation project for which a reasonable construction period is to be predicted; based on the type of substation project, determine the critical path in the early stage of the project and the key process in the construction stage of the project; Determine a corresponding reasonable construction period prediction model based on the critical path, the critical process and the type of the substation project; Based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein the reasonable construction period prediction model includes a reasonable construction period prediction model in the early stage of the project and a construction period prediction model in the project construction stage.

[0006] Furthermore, in the step of determining the type of the substation project for which a reasonable construction period is to be predicted, the types of the substation project include: outdoor substation project, indoor substation project and underground substation project.

[0007] Furthermore, based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein, when the type of the substation project is an outdoor substation project, the corresponding reasonable construction period prediction model includes: Reasonable construction period prediction model for outdoor substation projects in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q = T cs + T ss + T KG

[0008]

[0009]

[0010] in, T 前期 For the early stage of construction, T min , T maxare the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land / grassland; is the sea area utilization factor; is the land acquisition coefficient; is the forest land use coefficient; Construction period prediction model for outdoor substation projects:

[0011]

[0012] in, T 合理 Provide a reasonable construction period for the substation project; T 建设 The construction period of the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; T 11 It is the foundation treatment process; T 12 For deep foundation pit and road processes; T 13 For construction process; T 14 for building processes; T 15 For the construction and support process; T 16 It is a one-time equipment process; T 17 It is a secondary equipment process; T 18 Debugging process for subsystems; T 19 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

[0013] Furthermore, based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein, when the type of the substation project is an indoor substation project, the corresponding reasonable construction period prediction model includes: Reasonable construction period prediction model for indoor substation project in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q =T cs + T ss + T KG

[0014]

[0015]

[0016] in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land / grassland; is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0; Construction period prediction model for indoor substation projects:

[0017]

[0018] in, T 合理 Provide a reasonable construction period for the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; is the semi-indoor coefficient; T 21 It is the foundation treatment process; T 22 For deep foundation pit and road processes; T 24 for building processes; T 26 It is a one-time equipment process; T 27 It is a secondary equipment process; T 28 Debugging process for subsystem; T 29 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

[0019] Furthermore, based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein, when the type of the substation project is an underground substation project, the corresponding reasonable construction period prediction model includes: Reasonable construction period prediction model for underground substation project in the early stage of the project: T 前期 [ Tmin , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q = T cs + T ss + T KG

[0020]

[0021]

[0022] in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; Tcs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land / grassland; is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0; Construction period prediction model for underground substation projects T 合理 :

[0023]

[0024] in, T 合理 Provide a reasonable construction period for the substation project; T 建设 is the construction period of the substation project; M is the foundation pit support adjustment coefficient; N is the foundation treatment coefficient; X is the site environment coefficient; Z is the primary equipment installation parallel coefficient; T 31 It is the foundation pit support process; T 32 It is the earthwork process of foundation pit; T 33 It is the foundation treatment process; T 34 For building structure process; T 35For decoration and renovation process; T 36 For the construction mechanical and electrical process; T 37 It is the process of station area structure; T 38 It is the vertical transportation process of the equipment; T 39 Main transformer installation process; T 310 Installation process for 220KV combined electrical appliances; T 310 Installation process for 110KV combined electrical appliances; T 312 Installation process for 10KV switchgear; T 313 Installation process for secondary equipment; T 314 Debugging process for subsystems; T 315 For the acceptance and commissioning process.

[0025] Furthermore, after obtaining the reasonable construction period prediction result, it also includes: based on the reasonable construction period prediction result, correcting and optimizing the construction period of the substation project.

[0026] Furthermore, based on the reasonable construction period prediction result, the construction period of the substation project is corrected and optimized, including: Carry out advance control of the substation construction cycle; carry out in-process control of the progress in the middle of the substation construction; and carry out post-construction control of the substation construction progress.

[0027] In a second aspect, the present invention provides a device for predicting a reasonable construction period of a substation, comprising: The project phase module is used to quantify the sub-item construction period of the substation project and divide the substation project into the pre-project stage and the project construction stage; Type determination module, determining the type of substation project for which a reasonable construction period is to be predicted; A key process determination module, based on the type of the substation project, determines the key path in the early stage of the project and the key process in the construction stage of the project; The construction period prediction module predicts the reasonable construction period of the current substation based on the reasonable construction period prediction model to obtain a reasonable construction period prediction result; wherein the reasonable construction period prediction model includes a reasonable construction period prediction model in the early stage of the project and a construction period prediction model in the project construction stage.

[0028] According to a third aspect of the present invention, there is provided an electronic device, comprising a processor and a memory, wherein the processor is configured to execute a computer program stored in the memory to implement the above-mentioned method for predicting a reasonable construction period of a substation.

[0029] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores at least one instruction, and when the at least one instruction is executed by a processor, the method for predicting a reasonable construction period of a substation as described above is implemented.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: The method for predicting a reasonable construction period for a substation provided by the present invention first determines the type of the substation project for which a reasonable construction period is to be predicted, and selects a corresponding reasonable construction period prediction model according to the type of the substation, the model including a reasonable construction period prediction model for the early stage of the project and a construction period prediction model for the project. Special prediction models are established for different types of substation projects. The method of the present invention can be applied to different types of substation projects to more accurately predict the reasonable construction period of substation construction, and to improve the reasonable construction period prediction capability and application level of power transmission and transformation projects. A device for predicting a reasonable construction period for a substation, an electronic device, and a computer-readable storage medium provided by the present invention also solve the problems raised in the background technology section.

[0031] The present invention fully considers the interaction and influence between multiple factors, and proposes a reasonable construction period algorithm for substation projects that can cover different boundary conditions such as voltage level, project type, scale, terrain, geology, altitude, etc., so that the reasonable construction period prediction capability of power transmission and transformation projects has higher accuracy and reliability.

[0032] In the present invention, the reasonable construction period prediction model for the early stage of the project takes into account the basic construction period (including the initial design period, the construction period and the start preparation date) and the special project period, and determines the reasonable range of the early construction period by setting the upper and lower interval values. The construction period prediction model for the construction stage predicts the reasonable construction period of the substation project construction stage based on multiple factors such as regional type, altitude, foundation treatment, building structure, stability system, interval coefficient, common transformer coefficient, high-resistance coefficient, switch station coefficient, and prefabricated cabin coefficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 This is a flow chart of a method for predicting a reasonable construction period of a substation according to an embodiment of the present invention; Figure 2This is a flow chart of a method for predicting a reasonable construction period of a substation according to another embodiment of the present invention; Figure 3 A critical path network diagram for calculating the reasonable construction period in the early stage of a conventional substation project (excluding expansion projects) in an embodiment of the present invention; Figure 4 A network diagram of key processes for calculating the construction period of an outdoor substation project in an embodiment of the present invention; Figure 5 A network diagram of key processes for calculating the construction period of an indoor substation project in an embodiment of the present invention; Figure 6 A critical path network diagram for calculating a reasonable construction period during the construction phase of an underground substation project in an embodiment of the present invention; Figure 7 This is a structural block diagram of a device for predicting a reasonable construction period for a substation according to an embodiment of the present invention; Figure 8 The present invention is a structural block diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0035] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the present invention.

[0036] Example 1 In order to improve the ability and application level of reasonable construction period prediction of substation construction, the present invention provides a reasonable construction period prediction method for power transmission and transformation projects covering different boundary conditions such as voltage level, project type, scale, terrain, geology, and altitude.

[0037] like Figure 1 As shown, a method for predicting a reasonable construction period of a substation includes the following steps: S1. Quantify the sub-item construction period of the substation project and divide the substation project into the preliminary stage and the construction stage.

[0038] Specifically, the substation project involved in this plan refers to the construction of conventional substation projects.

[0039] S2. Determine the type of substation project for which a reasonable construction period is to be predicted; based on the type of substation project, determine the critical path in the early stage of the project and the critical process in the construction stage of the project.

[0040] Specifically, the types of substation projects include: outdoor substation projects, indoor substation projects and underground substation projects.

[0041] like Figure 3 As shown, for outdoor substation projects, indoor substation projects and underground substation projects, the key paths in the early stages of the projects are basically the same, all of which include three stages of work: preliminary design, construction drawing design, and preparation for commencement.

[0042] like Figure 4 and Figure 5 As shown in the figure, for outdoor substation projects, the key processes in the construction phase include foundation treatment, deep foundation pit, roads, structures, buildings, support structures, primary equipment, secondary equipment, subsystem commissioning, acceptance and commissioning. For indoor substation projects, the key processes in the construction phase include foundation treatment, deep foundation pit, roads, structures, buildings, primary equipment, secondary equipment, subsystem commissioning, acceptance and commissioning. Figure 6 As shown, the construction period of the underground substation project includes the working time of key processes such as foundation pit support, foundation pit earthwork, foundation treatment, building structure, decoration and renovation, building mechanical and electrical, station area structures, vertical transportation of equipment, primary equipment, secondary equipment, subsystem debugging, acceptance and commissioning.

[0043] S3. Determine a corresponding reasonable construction period prediction model based on the critical path, the critical process and the type of the substation project.

[0044] Specifically, since different substation projects correspond to different critical paths, key processes, etc., the prediction model needs to be refined to adapt to the reasonable construction period prediction of different substation projects.

[0045] S4. Predicting the reasonable construction period of the current substation based on the reasonable construction period prediction model to obtain a reasonable construction period prediction result; wherein the reasonable construction period prediction model includes a reasonable construction period prediction model in the early stage of the project and a construction period prediction model in the project construction stage.

[0046] Specifically, when the type of the substation project is an outdoor substation project, the corresponding reasonable construction period prediction model includes: T 全 = T 前期 + T 合理 Reasonable construction period prediction model for outdoor substation projects in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q = T cs + T ss + T KG

[0047]

[0048]

[0049] in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters,T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land (grassland); is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0.

[0050] It should be noted that the processes represented by T1~T9 are the same. Regardless of outdoor, indoor or underground substations, these procedures are required in the early stages, but the time required for each process is different.

[0051] Construction period prediction model for outdoor substation projects:

[0052]

[0053] in, T 合理 Provide a reasonable construction period for the substation project; T 建设 The construction period of the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; T 11 It is the foundation treatment process; T 12 For deep foundation pit and road processes; T 13 For construction process; T 14 for building processes; T 15 For the construction and support process; T 16 It is a one-time equipment process; T 17 It is a secondary equipment process; T 18 Debugging process for subsystem; T 19 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

[0054] Specifically, when the type of the substation project is an indoor substation project, the corresponding reasonable construction period prediction model includes: T 全 = T 前期 + T 合理 Reasonable construction period prediction model for indoor substation project in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min =T a + T c T max = T b + T d T Q = T cs + T ss + T KG

[0055]

[0056]

[0057] in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process;T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land (grassland); is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0; Construction period prediction model for indoor substation projects:

[0058]

[0059] in, T 合理 Provide a reasonable construction period for the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; is the semi-indoor coefficient; T 21 It is the foundation treatment process; T 22 For deep foundation pit and road processes; T 24 for building processes; T 26 It is a one-time equipment process; T 27 It is a secondary equipment process; T 28 Debugging process for subsystem; T 29 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

[0060] Specifically, when the type of the substation project is an underground substation project, the corresponding reasonable construction period prediction model includes: T 全 = T 前期 + T 合理 Reasonable construction period prediction model for underground substation project in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q = T cs + T ss + T KG

[0061]

[0062]

[0063] in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T maxare the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land (grassland); is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0; Construction period prediction model for underground substation projects T 合理 :

[0064]

[0065] in, T 合理 Provide a reasonable construction period for the substation project; T建设 The construction period of the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; T 31 It is the foundation pit support process; T 32 It is the earthwork process of foundation pit; T 33 It is the foundation treatment process; T 34 For building structure process; T 35 For decoration and renovation process; T 36 For the construction mechanical and electrical process; T 37 It is the process of station area structure; T 38 It is the vertical transportation process of the equipment; T 39 Main transformer installation process; T 310 Installation process for 220KV combined electrical appliances; T 310 Installation process for 110KV combined electrical appliances; T 312 Installation process for 10KV switchgear; T 313 Installation process for secondary equipment; T 314 Debugging process for subsystems; T 315 For the acceptance and commissioning process.

[0066] As an optional solution, after obtaining the reasonable construction period prediction result, it also includes: based on the reasonable construction period prediction result, correcting and optimizing the construction period of the substation project.

[0067] Based on the reasonable construction period prediction results, the construction period of the substation project is corrected and optimized. The specific measures may include the following aspects: 1. Conduct ex ante control over the substation construction cycle, including (1) preparing a general project implementation schedule and determining construction period targets; (2) breaking down the overall targets and developing corresponding detailed plans; and (3) developing corresponding construction plans and safeguards to complete the project on schedule.

[0068] 2. During the mid-term of substation construction, progress control is carried out, including (1) checking the construction progress; and (2) dynamic management of the project progress.

[0069] 3. Substation construction progress post-control, including, when the actual progress deviates from the planned progress, the following measures should be taken based on the analysis of the causes: (1) Formulate countermeasures to ensure that the total construction period is not exceeded; (2) Formulate remedial measures if the total construction period is exceeded; (3) Adjust the corresponding construction plan and organize and coordinate the corresponding supporting facilities and guarantee measures.

[0070] The method for predicting the reasonable construction period of a substation provided by the present invention quantifies the construction period of each substation project, which is mainly divided into the construction period of the early stage of the project and the construction period of the early stage of the project; then the key path of the sub-item construction period is determined, the parameter variables on the key path of each sub-item construction period are analyzed, and the values ​​of each parameter variable are taken respectively, and the reasonable construction period range of the sub-item construction period is calculated according to the proposed construction period calculation rules, and finally the total construction period value of the target substation project is calculated. The interaction and influence between multiple factors are fully considered, and a method for predicting the reasonable construction period of a substation project that can cover different boundary conditions such as voltage level, project type, scale, terrain, geology, altitude, etc. is proposed, so that the reasonable construction period prediction capability of the power transmission and transformation project has higher accuracy and reliability.

[0071] like Figure 2 As shown, in order to further explain and illustrate this solution, in an optional embodiment of the present invention, a reasonable construction period algorithm for a substation applicable to different boundary conditions is also provided, comprising the following steps: 101) Determine the critical path for a reasonable construction period in the early stages of the project; 102) Determine the reasonable construction period calculation rules for the early stage of substation projects; 103) Determine the key processes during the construction phase; 104) Determine the rules for calculating the duration of the project construction phase; 105) Combined calculation of reasonable construction period of substation project.

[0072] Next, steps 101) to 104) are described in detail.

[0073] 101) Determine the critical path for a reasonable construction period in the early stages of the project like Figure 3The figure below shows the key path of the reasonable construction period in the early stage of a conventional substation project (excluding expansion projects). The early stage of the project mainly includes three stages of work: preliminary design, construction drawing design, and preparation for construction. The preliminary design stage mainly includes the preparation of preliminary design of the project, internal review of preliminary design, review and approval of preliminary design, etc. The construction drawing design stage mainly includes matters such as approval letter for the use of forest land (grassland), land acquisition approval, sea area use right certificate, construction land planning permit, state-owned land allocation decision, construction project planning permit, etc. The preparation stage for commencement of construction mainly includes matters such as standardized commencement of construction.

[0074] 102) Determine the reasonable construction period calculation rules for the early stage of substation project The reasonable construction period calculation rule for the early stage of substation project is shown in formula (1).

[0075]

[0076] Among them, the initial construction period T 前期 , basic construction period T Q Duration of special matters T 特殊事项 All are interval values. T min = T a + T c , T max = T b + T d .

[0077] The basic construction period is calculated according to formulas (2) to (5). Optionally, for the convenience of calculation, land acquisition is required when using forest and grassland. T 9 Direct curing takes 45 days.

[0078]

[0079] in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, Ta , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land (grassland); is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0.

[0080] In addition, the construction period for special matters refers to the extra time that special matters need to spend on the basis of the basic construction period due to factors such as region, terrain, and administrative procedures. It mainly includes non-integrated bidding for feasibility study and design, which corresponds to a construction period of 2-3 months; it is necessary to apply for a construction project construction permit, which corresponds to a construction period of 3-4 months; the terrain for standardized construction is complex and the site leveling is difficult, which corresponds to a construction period of 1-2 months; the land acquisition approval is approved by the relevant departments of the State Council, which corresponds to a construction period of 6-8 months; the land acquisition approval is paid by the government on behalf of the relevant fees, which corresponds to a construction period of 4-6 months; the review and approval for the use of forest land (grassland) is approved by the relevant departments of the State Council, which corresponds to a construction period of 6-8 months; the confirmation process of the review and approval for the use of forest land (grassland) is complicated, which corresponds to a construction period of 2-4 months; it is necessary to carry out cultural relics exploration (not cultural relics excavation), which corresponds to a construction period of 1-2 months; it is necessary to carry out cultural relics exploration and cultural relics excavation, which corresponds to a construction period of 2-4 months; cultural relics excavation is approved by the relevant departments of the State Council, which corresponds to a construction period of 6-8 months.

[0081] 103) Determine the key processes during the construction phase The conventional substation project duration calculation includes outdoor substation projects and indoor substation projects. The key process network diagram is as follows: Figure 4 , Figure 5 shown.

[0082] The outdoor substation project includes the key process working time such as foundation treatment, deep foundation pit, roads, structures, buildings, supports, primary equipment, secondary equipment, subsystem debugging, acceptance and commissioning.

[0083] Indoor substation projects include foundation treatment, deep foundation pits, roads, structures, buildings, primary equipment, secondary equipment, subsystem debugging, acceptance and commissioning and other key process working hours.

[0084] The construction period of underground substation project includes the working time of key processes such as foundation pit support, foundation pit earthwork, foundation treatment, building structure, decoration and renovation, building electromechanical, station area structure, vertical transportation of equipment, primary equipment (220kv combination electrical installation, 110kv combination electrical installation, 10kv switch cabinet installation), secondary equipment, subsystem debugging, acceptance and commissioning. The network diagram of key processes is calculated as follows: Figure 6 shown.

[0085] 104) Determine the rules for calculating the duration of the project construction phase The calculation rule for the construction period of outdoor substation project is shown in formula (6).

[0086] (6) in, T 合理 Provide a reasonable construction period for the substation project; T 建设The construction period of the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; T 11 It is the foundation treatment process; T 12 For deep foundation pit and road processes; T 13 For construction process; T 14 for building processes; T 15 For the construction and support process; T 16 It is a one-time equipment process; T 17 It is a secondary equipment process; T 18 Debugging process for subsystems; T 19 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

[0087] The calculation rule for the construction period of the indoor substation project is shown in formula (7).

[0088] (7) in, T 合理 Provide a reasonable construction period for the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; is the semi-indoor coefficient; T 21 It is the foundation treatment process; T 22 For deep foundation pit and road processes;T 23 For construction process; T 24 for building processes; T 26 It is a one-time equipment process; T 27 It is a secondary equipment process; T 28 Debugging process for subsystem; T 29 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

[0089] After comprehensive consideration, the reasonable construction period of the project is determined as shown in formula (8).

[0090]

[0091] The coefficients in formula (6) and (7) are: is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; is the semi-indoor coefficient.

[0092] In the formula, coefficients K1~K 11 The instructions are as follows: It is the regional type coefficient, and its value is determined according to the regional type:

[0093] is the altitude coefficient, which is determined according to the altitude:

[0094] is the foundation treatment coefficient: 1. Natural foundation, layered rolling foundation treatment: The foundation treatment coefficient (excluding pile foundation) is 1.

[0095] 2. Strong compaction foundation treatment: Foundation treatment coefficient (excluding pile foundation) = 1.2 × tamping coefficient When the number of tamping times is less than or equal to 2, the tamping coefficient (Q1) defaults to 1; When it is greater than 2, it is 1+(n-2)×20%.

[0096] 3. Foundation treatment coefficient (including pile foundation) = prefabricated pile coefficient × rock penetration coefficient Precast pile coefficient (Q2): When the pile foundation type is non-precast pile or precast pile, the values ​​are assigned as 1.1 and 1 respectively.

[0097] Rock penetration coefficient (Q3): If there is rock penetration or rock entry, the value is 1.2; otherwise, the value is 1.

[0098] It is the building structure coefficient, which is determined according to the indoor and outdoor and building steel structure types:

[0099] It is the safety and stability system coefficient. When the project is configured with a safety and stability system in this phase, the value is 1.05, otherwise the value is 1.

[0100] is the interval coefficient, interval coefficient = 1 + high pressure side coefficient + medium pressure side coefficient: 1. High-pressure side coefficient (Q4): (1) When the number of intervals on the high-voltage side is less than or equal to 6, the default value is 0; (2) When the number of intervals on the high-voltage side is greater than 6, it is (n-6)×0.025; 2. Medium pressure side coefficient (Q5): (1) When the number of intervals on the medium pressure side is less than or equal to 10, the default value is 0; (2) When the number of intervals on the medium pressure side is greater than 10, it is (n-10)×0.02; It is the common transformer coefficient. 1. It is only used in 500kV transformers. When it is a common transformer, the value is 0.95, and in other cases, the value is 1. 2. When it is a common transformer, it is necessary to check whether the voltage level is 500 kV. If not, a reminder will be given.

[0101] It is the high resistance coefficient, high resistance quantity*0.05.

[0102] It is the switch station coefficient. When it is a switch station, it is necessary to check whether the number of main transformers is 1. If not, it will remind you:

[0103] It is the prefabricated cabin coefficient. When the prefabricated cabin is used in this period, the coefficient value is 0.8; otherwise, the value is 1.

[0104] It is the semi-indoor coefficient. When the indoor station is a fully indoor substation project, the value is 1; when it is a semi-indoor substation, the value is 0.9.

[0105] The construction period calculation of underground substation project is shown in formula (9).

[0106] (9) After comprehensive consideration, the reasonable construction period of the underground substation project is determined as shown in formula (10).

[0107]

[0108] in, T 合理 Provide a reasonable construction period for the substation project; T 建设 is the construction period of the substation project; M is the foundation pit support adjustment coefficient; N is the foundation treatment coefficient; X is the site environment coefficient; Z is the primary equipment installation parallel coefficient; T 31 It is the foundation pit support process; T 32 It is the earthwork process of foundation pit; T 33 It is the foundation treatment process; T 34 For building structure process; T 35 For decoration and renovation process; T 36 For the construction mechanical and electrical process; T 37 It is the process of station area structure; T 38 It is the vertical transportation process of the equipment; T 39 Main transformer installation process; T 310 Installation process for 220KV combined electrical appliances; T 310 Installation process for 110KV combined electrical appliances; T 312 Installation process for 10KV switchgear; T 313 Installation process for secondary equipment; T 314 Debugging process for subsystems; T 315 For the acceptance and commissioning process.

[0109] 105) Combined calculation of reasonable construction period of substation project The reasonable construction period of the substation construction is calculated by adding the reasonable construction period of the early stage of the substation project and the construction stage of the project, as shown in formula (11).

[0110]

[0111] The above scheme provides a reasonable construction period algorithm for substations with different boundary conditions. It uses the critical path method to identify the main influencing factors of construction period prediction under different boundary conditions, builds a reasonable construction period prediction model, investigates the construction period and influencing factors of substations with different voltage levels of 35kV-750kV under different environments, and sorts out the reasonable construction period standards and application scenarios of the project. Then, the critical path method is used to identify the main influencing parameters of the project, clarify the critical path of the construction period under various application scenarios of various projects, sort out the reasonable construction period boundary conditions of the project, and classify and group them according to the characteristics of the boundary conditions. Fuzzy comprehensive evaluation method is used for quantitative processing of boundary conditions that are not easy to quantitatively measure, and a reasonable construction period prediction model for the project is built, which improves the reasonable construction period prediction capability and application level of substation construction.

[0112] Example 2 like Figure 7 As shown, based on the same inventive concept as the above embodiment, the present invention also provides a device for predicting a reasonable construction period of a substation, comprising: The project phase module is used to quantify the sub-item construction period of the substation project and divide the substation project into the pre-project stage and the project construction stage; Type determination module, determining the type of substation project for which a reasonable construction period is to be predicted; A key process determination module, based on the type of the substation project, determines the key path in the early stage of the project and the key process in the construction stage of the project; The construction period prediction module predicts the reasonable construction period of the current substation based on the reasonable construction period prediction model to obtain a reasonable construction period prediction result; wherein the reasonable construction period prediction model includes a reasonable construction period prediction model in the early stage of the project and a construction period prediction model in the project construction stage.

[0113] Example 3 like Figure 8 As shown, the present invention also provides an electronic device 100 for realizing a method for predicting a reasonable construction period of a substation; The electronic device 100 includes a memory 101 , at least one processor 102 , a computer program 103 stored in the memory 101 and executable on the at least one processor 102 , and at least one communication bus 104 .

[0114] The memory 101 can be used to store a computer program 103. The processor 102 implements the steps of a method for predicting a reasonable construction period of a substation in Example 1 by running or executing the computer program stored in the memory 101 and calling the data stored in the memory 101.

[0115] The memory 101 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data (such as audio data) created according to the use of the electronic device 100, etc. In addition, the memory 101 may include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0116] At least one processor 102 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 102 may be a microprocessor or any conventional processor, etc. The processor 102 is the control center of the electronic device 100, and uses various interfaces and lines to connect various parts of the entire electronic device 100.

[0117] The memory 101 in the electronic device 100 stores a plurality of instructions to implement a method for predicting a reasonable construction period of a substation, and the processor 102 can execute the plurality of instructions to implement: Quantify the substation project by project duration, and divide the substation project into the pre-project stage and the project construction stage; Determine the type of substation project for which a reasonable construction period is to be predicted; based on the type of substation project, determine the critical path in the early stage of the project and the key process in the construction stage of the project; Determine a corresponding reasonable construction period prediction model based on the critical path, the critical process and the type of the substation project; Based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein the reasonable construction period prediction model includes a reasonable construction period prediction model in the early stage of the project and a construction period prediction model in the project construction stage.

[0118] Example 4 If the module / unit integrated in the electronic device 100 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. Computer-readable media may include: any entity or device that can carry computer program code, recording medium, USB flash drive, mobile hard disk, disk, optical disk, computer memory and read-only memory (ROM, Read-Only Memory).

[0119] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0120] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0121] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0122] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0123] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for predicting a reasonable construction period of a substation, characterized in that: The steps include: Quantify the substation project by project duration, and divide the substation project into the pre-project stage and the project construction stage; Determine the type of substation project for which a reasonable construction period is to be predicted; based on the type of substation project, determine the critical path in the early stage of the project and the key process in the construction stage of the project; Determine a corresponding reasonable construction period prediction model based on the critical path, the critical process and the type of the substation project; Based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein the reasonable construction period prediction model includes a reasonable construction period prediction model in the early stage of the project and a construction period prediction model in the project construction stage.

2. The method for predicting a reasonable construction period of a substation according to claim 1 is characterized in that: In the step of determining the type of the substation project for which a reasonable construction period is to be predicted, the types of the substation project include: outdoor substation project, indoor substation project and underground substation project.

3. The method for predicting a reasonable construction period of a substation according to claim 2 is characterized in that: Based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein, when the type of the substation project is an outdoor substation project, the corresponding reasonable construction period prediction model includes: Reasonable construction period prediction model for outdoor substation projects in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q = T cs + T ss + T KG in, T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land / grassland; is the sea area utilization factor; is the land acquisition coefficient; is the forest land use coefficient; Construction period prediction model for outdoor substation projects: in, T 合理 Provide a reasonable construction period for the substation project; T 建设 The construction period of the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; T 11 It is the foundation treatment process; T 12 For deep foundation pit and road processes; T 13 For construction process; T 14 for building processes; T 15 For the construction and support process; T 16 It is a one-time equipment process; T 17 It is a secondary equipment process; T 18 Debugging process for subsystems; T 19 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

4. The method for predicting a reasonable construction period of a substation according to claim 2 is characterized in that: Based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein, when the type of the substation project is an indoor substation project, the corresponding reasonable construction period prediction model includes: Reasonable construction period prediction model for indoor substation project in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q = T cs + T ss + T KG in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land / grassland; is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0; Construction period prediction model for indoor substation projects: in, T 合理 Provide a reasonable construction period for the substation project; is the regional type coefficient; is the altitude coefficient; is the foundation treatment coefficient; is the building structure coefficient; is the stability system coefficient; is the interval coefficient; is the common transformer coefficient; It is a high resistance coefficient; is the switch station coefficient; is the prefabricated cabin coefficient; is the semi-indoor coefficient; T 21 It is the foundation treatment process; T 22 For deep foundation pit and road processes; T 24 for building processes; T 26 It is a one-time equipment process; T 27 It is a secondary equipment process; T 28 Debugging process for subsystems; T 29 For acceptance and commissioning procedures; It is the accidental process time on the critical path.

5. The method for predicting a reasonable construction period of a substation according to claim 2 is characterized in that: Based on the reasonable construction period prediction model, the reasonable construction period of the current substation is predicted to obtain a reasonable construction period prediction result; wherein, when the type of the substation project is an underground substation project, the corresponding reasonable construction period prediction model includes: Reasonable construction period prediction model for underground substation project in the early stage of the project: T 前期 [ T min , T max ]= T Q [ T a , T b ]+ T 特殊事项 [ T c , T d ] T min = T a + T c T max = T b + T d T Q = T cs + T ss + T KG in, T 全 Provide a reasonable construction period for substation construction; T 前期 For the early stage of construction, T min , T max are the upper and lower interval values ​​of the previous construction period respectively; T Q As the basic construction period, T a , T b are the upper and lower interval values ​​of the basic construction period respectively; T 特殊事项 For special matters, T c , T d They are the upper and lower interval values ​​of the duration of special matters respectively; T cs This is the initial design period; T ss The construction period; T KG Prepare a date for the commencement of work; T 1 is the preliminary design preparation process; T 2 is the preliminary design internal audit process; T 3 is the preliminary design review and approval process; T 4 is the standardized start-up process; T 5 is the process of obtaining construction land planning permit and state-owned land allocation decision; T 6 is the construction project planning license process; T 7 is the process of obtaining the sea area use right certificate; T 8 is the land acquisition approval process; T 9 is the approval process for the use of forest land / grassland; is the sea area utilization coefficient, which is 1 when in use and 0 when not in use; is the land acquisition coefficient, which is 1 when used and 0 when not used; is the forest land use coefficient, which is 1 when the forest and grassland are used and 0 when they are not used. , When both are 1: Greater than or equal to , then Set to 0; if Less than When Set to 0; Construction period prediction model for underground substation projects T 合理 : in, T 合理 Provide a reasonable construction period for the substation project; T 建设 is the construction period of the substation project; M is the foundation pit support adjustment coefficient; N is the foundation treatment coefficient; X is the site environment coefficient; Z is the primary equipment installation parallel coefficient; T 31 It is the foundation pit support process; T 32 It is the earthwork process of foundation pit; T 33 It is the foundation treatment process; T 34 For building structure process; T 35 For decoration and renovation process; T 36 For the construction mechanical and electrical process; T 37 It is the process of station area structure; T 38 It is the vertical transportation process of the equipment; T 39 Main transformer installation process; T 310 Installation process for 220KV combined electrical appliances; T 310 Installation process for 110KV combined electrical appliances; T 312 Installation process for 10KV switchgear; T 313 Installation process for secondary equipment; T 314 Debugging process for subsystems; T 315 For the acceptance and commissioning process.

6. The method for predicting a reasonable construction period of a substation according to claim 1 is characterized in that: After obtaining the reasonable construction period prediction result, it also includes: based on the reasonable construction period prediction result, correcting and optimizing the construction period of the substation project.

7. The method for predicting a reasonable construction period of a substation according to claim 1, characterized in that: Based on the reasonable construction period prediction results, the construction period of the substation project is revised and optimized, including: Carry out advance control of the substation construction cycle; carry out in-process control of the progress in the middle of the substation construction; and carry out post-construction control of the substation construction progress.

8. A device for predicting a reasonable construction period for substation construction, characterized in that: include: The project phase module is used to quantify the sub-item construction period of the substation project and divide the substation project into the pre-project stage and the project construction stage; Type determination module, determining the type of substation project for which a reasonable construction period is to be predicted; A key process determination module, based on the type of the substation project, determines the key path in the early stage of the project and the key process in the construction stage of the project; The construction period prediction module predicts the reasonable construction period of the current substation based on the reasonable construction period prediction model to obtain a reasonable construction period prediction result; wherein the reasonable construction period prediction model includes a reasonable construction period prediction model in the early stage of the project and a construction period prediction model in the project construction stage.

9. An electronic device, characterized in that: It comprises a processor and a memory, wherein the processor is used to execute a computer program stored in the memory to implement the method for predicting a reasonable construction period of a substation as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores at least one instruction, and when the at least one instruction is executed by the processor, the method for predicting a reasonable construction period of a substation as described in any one of claims 1 to 7 is implemented.

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