A power distribution project evaluation method, device, equipment and storage medium

Abstract

The application discloses a power distribution project evaluation method, device, equipment and storage medium, comprising: obtaining a power distribution project to be evaluated, determining the first number of households of power failure of each associated line before the implementation of the power distribution project; determining the second number of households of power failure of each associated line after the implementation of the power distribution project; and determining the evaluation result corresponding to the power distribution project according to the first number of households of power failure and the second number of households of power failure of each associated line. The technical scheme of the embodiment of the application can reduce the complexity of the power distribution project evaluation process and improve the evaluation efficiency of the power distribution project.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of power distribution network, in particular to a power distribution project evaluation method, device and equipment and storage medium. BACKGROUND

[0002] At present, when improving the reliability of the power distribution network planning project, it is mainly realized by improving the power grid level and redundant configuration, that is, by quantifying the indicators such as ring network rate, transferable power rate, segmentation number, inter-station connection rate, and power distribution automation utilization rate, to realize the high reliability of the power distribution network planning project. However, when meeting the load growth and improving the reliability of the power distribution network planning project by the above-mentioned method, the technical cost is high, and the improvement of the reliability is also restricted. Therefore, it is necessary to provide a method for evaluating the reliability of the direct current power distribution project, and improving the planning quality of the power distribution network according to the evaluation result.

[0003] Due to the large number of types of power distribution network grid structure, the difference between different grid structures is huge, and in the prior art, when evaluating the power distribution project, a correlation power grid model needs to be constructed separately for different power distribution network grids, and the corresponding reliability formula is solved.

[0004] However, in the prior art, for each planning project, it is necessary to start modeling and deriving formulas again for the power distribution lines involved in the planning project, resulting in complicated analysis work; secondly, due to the lack of standardized solving process, the prior art is difficult to evaluate a large number of power distribution network planning projects, resulting in low operation feasibility. SUMMARY

[0005] The embodiment of the present application provides a power distribution project evaluation method, device, equipment and storage medium, which can reduce the complexity of the power distribution project evaluation process and improve the evaluation efficiency of the power distribution project.

[0006] In a first aspect, the embodiment of the present application provides a power distribution project evaluation method, which comprises:

[0007] obtaining a power distribution project to be evaluated, and determining the first number of households of each associated line before the implementation of the power distribution project; the associated line is a power distribution line corresponding to the power distribution project;

[0008] determining the second number of households of each associated line after the implementation of the power distribution project;

[0009] determining the evaluation result corresponding to the power distribution project according to the first number of households and the second number of households of each associated line.

[0010] In a second aspect, the embodiment of the present application further provides a power distribution project evaluation device, which comprises:

[0011] The first outage time household number determination module is configured to acquire a power distribution project to be evaluated, and determine first outage time household numbers of each associated line before implementation of the power distribution project, wherein the associated line is a power distribution line corresponding to the power distribution project.

[0012] The second outage time household number determination module is configured to determine second outage time household numbers of each associated line after implementation of the power distribution project.

[0013] The evaluation module is configured to determine an evaluation result corresponding to the power distribution project according to the first outage time household numbers and the second outage time household numbers of each associated line.

[0014] In a third aspect, an electronic device is provided, and the electronic device includes:

[0015] One or more processors;

[0016] A storage device configured to store one or more programs;

[0017] When the one or more programs are executed by the one or more processors, the one or more processors perform the programs, and the power distribution project evaluation method provided by any of the embodiments of the present application is implemented.

[0018] In a fourth aspect, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program, which, when executed by a processor, implements the power distribution project evaluation method provided by any of the embodiments of the present application.

[0019] The technical solution of the embodiments of the present application can meet the evaluation needs of a large number of power distribution projects, reduce the complexity of the power distribution project evaluation process, and improve the evaluation efficiency of the power distribution project, by acquiring a power distribution project to be evaluated, determining first outage time household numbers of each associated line before implementation of the power distribution project, determining second outage time household numbers of each associated line after implementation of the power distribution project, and determining an evaluation result corresponding to the power distribution project according to the first outage time household numbers and the second outage time household numbers of each associated line.

[0020] It should be understood that the content described in this section is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0022] Figure 1 is a flow chart of a power distribution project evaluation method according to the first embodiment of the present application;

[0023] Figure 2 is a flow chart of a power distribution project evaluation method according to the second embodiment of the present application;

[0024] Figure 3 is a flow chart of a power distribution project evaluation method according to the third embodiment of the present application;

[0025] Figure 4 is a structural schematic diagram of a power distribution project evaluation device according to the fourth embodiment of the present application;

[0026] Figure 5 is a structural schematic diagram of an electronic device implementing the power distribution project evaluation method according to the present application. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, but not all the structures.

[0028] Embodiment One

[0029] Figure 1 The flow chart of the power distribution project evaluation method according to the first embodiment of the present application can be applied to the case of evaluating the reliability of the power distribution network planning project, and the method can be executed by a power distribution project evaluation device. The power distribution project evaluation device can be realized by software and / or hardware, and can be integrated in an electronic device (such as a terminal or a server) having a data processing function, and specifically includes the following steps:

[0030] In step 110, the power distribution project to be evaluated is acquired, and the first number of households of each associated line before the implementation of the power distribution project is determined; the associated line is the power distribution line corresponding to the power distribution project.

[0031] In the embodiment, the power distribution project can be a power distribution network planning project requiring reliability evaluation, and the power distribution project can correspond to a plurality of power distribution lines (i.e., associated lines). After the power distribution project is obtained, the number of households with power outage of each associated line before the implementation of the power distribution project (i.e., the first number of households with power outage) can be calculated according to the power distribution parameters of the power distribution project. Specifically, the first number of households with power outage can be the power outage time of each user in each associated line before the implementation of the power distribution project.

[0032] Step 120, determining the second number of households with power outage of each associated line after the implementation of the power distribution project.

[0033] In the embodiment, after the first number of households with power outage of each associated line before the implementation of the power distribution project is calculated, the second number of households with power outage of each associated line after the implementation of the power distribution project can be calculated by using the same calculation method. Specifically, the second number of households with power outage can be the power outage time of each user in each associated line after the implementation of the power distribution project.

[0034] Step 130, determining the evaluation result corresponding to the power distribution project according to the first number of households with power outage and the second number of households with power outage of each associated line.

[0035] In this step, the reliability of the power distribution project can be evaluated according to the difference between the first number of households with power outage and the second number of households with power outage in each associated line, and the evaluation result for characterizing the reliability of the power distribution project can be obtained.

[0036] In the embodiment, by calculating the first number of households with power outage and the second number of households with power outage, a method for evaluating the reliability of a direct-current power distribution project is provided, which can meet the evaluation needs of a large number of projects in a planning project library. Compared with the construction of an associated power grid model for a power distribution network in the prior art, the calculation process can be reduced, the complexity of the power distribution project evaluation process can be reduced, and reference significance is provided for improving the quality and accuracy of power distribution network planning projects.

[0037] The technical scheme of the embodiment of the application can meet the evaluation needs of a large number of power distribution projects, reduce the complexity of the power distribution project evaluation process, and improve the evaluation efficiency of the power distribution project by obtaining a power distribution project to be evaluated, determining the first number of households with power outage of each associated line before the implementation of the power distribution project, determining the second number of households with power outage of each associated line after the implementation of the power distribution project, and determining the evaluation result corresponding to the power distribution project according to the first number of households with power outage and the second number of households with power outage of each associated line.

[0038] Embodiment two

[0039] This embodiment is a further refinement of the above-mentioned embodiment, and the same or corresponding terms are explained as in the above-mentioned embodiment, which will not be repeated herein. Figure 2 A flowchart of an evaluation method of a power distribution project provided in Embodiment Two is shown in the figure. In this embodiment, the technical solution of this embodiment can be combined with one or more methods in the solutions of the above-mentioned embodiments, such as Figure 2 The method provided in this embodiment can further include the following steps:

[0040] Step 210: Obtain a power distribution project to be evaluated, and determine the original outage household number and the fault outage household number of each associated line before implementation of the power distribution project.

[0041] In this embodiment, the original outage household number can be understood as the outage household number of each associated line caused by its own power distribution. The fault outage household number can be understood as the outage household number of each associated line caused by a fault of a distribution transformer.

[0042] In a specific embodiment, the original outage household number T′ Li of each associated line can be calculated according to the power distribution parameters of each associated line. Ti .

[0043] Step 220: Add the original outage household number and the fault outage household number of each associated line to obtain the first outage household number of each associated line.

[0044] In a specific embodiment, the original outage household number T′ Li of each associated line can be added to the fault outage household number T′ Ti to obtain the first outage household number T′ i of each associated line, that is:

[0045] T′ i = T′ Li + T′ Ti

[0046] Step 230: Determine the second outage household number of each associated line after implementation of the power distribution project.

[0047] In this embodiment, the second outage household number T″ i of each associated line after implementation of the power distribution project can be calculated according to the network structure of each associated line after implementation of the power distribution project, in the same manner as the above-mentioned steps.

[0048] Step 240: Calculate the target difference between the first outage household number and the second outage household number of each associated line.

[0049] In this step, the target difference ΔT of the number of households before and after the outage of each associated line can be calculated according to the following formula i :

[0050] ΔT i =T′ i -T″ i

[0051] Step 250, the target difference corresponding to each of the associated lines is accumulated to obtain an evaluation result corresponding to the power distribution project.

[0052] In this step, the evaluation result ΔT corresponding to the power distribution project can be obtained according to the following formula:

[0053] ΔT=∑ i ΔT i

[0054] The technical scheme of the embodiment of the application obtains a power distribution project to be evaluated, determines the original outage number of households and the outage number of households due to failure of each associated line before the implementation of the power distribution project, adds the original outage number of households and the outage number of households due to failure of each of the associated lines to obtain a first outage number of households of each associated line, determines a second outage number of households of each associated line after the implementation of the power distribution project, calculates a target difference between the first outage number of households and the second outage number of households of each associated line, and accumulates the target difference corresponding to each of the associated lines to obtain an evaluation result corresponding to the power distribution project. The technical means can meet the evaluation needs of a large number of power distribution projects, reduce the complexity of the power distribution project evaluation process, and improve the evaluation efficiency of the power distribution project.

[0055] Embodiment Three

[0056] This embodiment is a further refinement of the above-mentioned embodiments. The same or corresponding terms are explained as in the above-mentioned embodiments, and this embodiment will not be described again. Figure 3 A flowchart of a power distribution project evaluation method provided in this embodiment is shown in the figure. In this embodiment, the technical scheme of this embodiment can be combined with one or more methods in the above-mentioned embodiments, as shown in Figure 3 The method provided in this embodiment can further include:

[0057] Step 310, obtaining a power distribution project to be evaluated and a plurality of performance evaluation parameters corresponding to the power distribution project.

[0058] In this embodiment, optionally, the plurality of performance evaluation parameters corresponding to the power distribution project can include: a line failure rate λ l , a transformer failure rate λ t , a switch failure rate λ s , and an artificial failure positioning, isolation, and switching operation time tdfm ; automated fault locating, isolating, switching operation time t dfa ; fault repair power restoration time t f .

[0059] Step 320, determining the main lines and branch lines included in the grid structure corresponding to each associated line before the power distribution project is implemented.

[0060] In an embodiment of the present embodiment, determining the main lines and branch lines included in the grid structure corresponding to each associated line before the power distribution project is implemented comprises: obtaining a unique path between a substation and a target contact point in the grid structure corresponding to each associated line before the power distribution project is implemented, and taking the unique path as the main line; taking a path containing a branch switch in the grid structure except the main line as the branch line.

[0061] The advantage of such arrangement is that by dividing the grid structure of the associated line, the evaluation efficiency of the power distribution project can be improved.

[0062] Step 330, taking each main line and branch line as an evaluation unit, obtaining a plurality of power distribution parameters corresponding to each evaluation unit.

[0063] In this step, optionally, the main line and branch line can be taken as the smallest evaluation unit, and a plurality of power distribution parameters corresponding to each evaluation unit can be obtained, such as the number of low-voltage users, line type, line length, power distribution automation point distribution information, and power transfer capacity parameters.

[0064] Step 340, determining the power outage time corresponding to each associated line according to the fault condition corresponding to each evaluation unit.

[0065] In this step, the fault conditions corresponding to each evaluation unit can be enumerated in turn, and the user power outage time corresponding to each associated line after each evaluation unit fails can be calculated and counted.

[0066] Step 350, calculating the original power outage user number of each associated line before the power distribution project is implemented according to the plurality of performance evaluation parameters, the plurality of power distribution parameters, and the power outage time.

[0067] In one embodiment of this example, the calculation of the original number of households affected by power outages for each associated line before the implementation of the power distribution project, based on the multiple performance evaluation parameters, multiple power distribution parameters, and the power outage time, includes: calculating the number of households affected by power outages upstream of the fault section, the number of households affected by power outages during the fault section, and the number of households affected by power outages downstream of the fault section for each associated line before the implementation of the power distribution project, based on the multiple performance evaluation parameters, multiple power distribution parameters, and the power outage time; and determining the original number of households affected by power outages for each associated line based on the number of households affected by power outages upstream of the fault section, the number of households affected by power outages during the fault section, and the number of households affected by power outages downstream of the fault section.

[0068] In one specific embodiment, if the sectionalizing switch is a non-automatic switch, the number of upstream users C of the faulty section can be used as a reference. u The time t for manual fault location, isolation, and manual switching operations dfm Calculate the number of households C when the upstream of the fault section corresponding to each associated line experiences a power outage. u t dfm If the sectionalizing switch is an automatic switch, then the automatic fault location, isolation, and automatic switching operation time t can be used as a reference. dfa Calculate the number of households C when the upstream of the fault section corresponding to each associated line experiences a power outage. u t dfa .

[0069] In this embodiment, the number of users C in the faulty segment can be used as a reference. f Fault location, isolation, and switching operation time (t) dfm or t dfa ) and the time t for fault repair and power restoration f Calculate the number of households C during the power outage in the fault section. f (t dfm +t) f Or C f (t dfa +t f ).

[0070] In this embodiment, if the downstream users of the faulty segment (the number of users is C) d If power can be transferred, then the fault location, isolation, and switching operation time (t) can be used as a reference. dfm or t dfa ), calculate the number of households C downstream of the faulty section when power is out. d t dfm Or C d t dfa If downstream users of the faulty section cannot transfer power, the time for fault location, isolation, and switching operations (t) can be used as a reference. dfm or t dfa ) and the time t for fault repair and power restoration fCalculate the number of households C downstream of the fault section during a power outage. d (t dfm +t f ) or C d (t dfa +t f ).

[0071] Step 360: Determine the number of households affected by power outages due to faults in each associated line before the implementation of the power distribution project.

[0072] In one embodiment of this example, determining the number of users affected by power outages on each associated line before the implementation of the power distribution project includes: obtaining the number of users on each associated line, the transformer failure rate, the switching operation time, and the fault repair and restoration time before the implementation of the power distribution project; and determining the number of users C and the transformer failure rate λ on each associated line before the implementation of the power distribution project. t Switching operation time t dfm and the time t for fault repair and power restoration f Calculate the number of households T′ during a power outage due to a fault in each associated line. Ti .

[0073] In a specific embodiment, the number of households T′ during a power outage due to a fault in each associated line can be calculated according to the following formula. Ti :

[0074] T′ Ti =Cλ t (t dfm +t f )

[0075] Step 370: Add the original number of households during power outages to the number of households during fault power outages for each of the associated lines to obtain the first number of households during power outages for each associated line.

[0076] Step 380: Determine the number of households affected by the second power outage on each associated line after the implementation of the power distribution project.

[0077] Step 390: Determine the evaluation result corresponding to the power distribution project based on the number of households during the first power outage and the number of households during the second power outage of each of the associated lines.

[0078] The technical scheme of the embodiment of the present application obtains a power distribution project to be evaluated and a plurality of performance evaluation parameters corresponding to the power distribution project, determines main lines and branch lines included in a network structure corresponding to each associated line of the power distribution project before implementation, takes each main line and branch line as an evaluation unit, obtains a plurality of power distribution parameters corresponding to each evaluation unit, determines a power outage time corresponding to each associated line according to a fault condition of each evaluation unit, calculates an original power outage household number and a fault power outage household number of each associated line before implementation of the power distribution project according to the plurality of performance evaluation parameters, the plurality of power distribution parameters and the power outage time, adds the original power outage household number and the fault power outage household number of each associated line to obtain a first power outage household number of each associated line, determines a second power outage household number of each associated line after implementation of the power distribution project, and determines an evaluation result corresponding to the power distribution project according to the first power outage household number and the second power outage household number of each associated line.

[0079] Embodiment four

[0080] Figure 4 A structure schematic diagram of a power distribution project evaluation device provided by the fourth embodiment of the present application is shown in FIG. 4, which comprises a first power outage household number determination module 410, a second power outage household number determination module 420 and an evaluation module 430. Figure 4

[0081] The first power outage household number determination module 410 is configured to obtain a power distribution project to be evaluated and determine a first power outage household number of each associated line of the power distribution project before implementation.

[0082] The second power outage household number determination module 420 is configured to determine a second power outage household number of each associated line of the power distribution project after implementation.

[0083] The evaluation module 430 is configured to determine an evaluation result corresponding to the power distribution project according to the first power outage household number and the second power outage household number of each associated line.

[0084] The technical scheme provided by the embodiment of the present application can meet the evaluation demand of a large number of power distribution projects, reduce the complexity of the power distribution project evaluation process and improve the evaluation efficiency of the power distribution project by obtaining a power distribution project to be evaluated, determining a first power outage household number of each associated line of the power distribution project before implementation, determining a second power outage household number of each associated line of the power distribution project after implementation, and determining an evaluation result corresponding to the power distribution project according to the first power outage household number and the second power outage household number of each associated line.

[0085] ​On the basis of the above-mentioned embodiments, the first outage time household number determination module 410 comprises:

[0086] An outage time household number determination unit is configured to determine original outage time household numbers and fault outage time household numbers of each associated line before implementation of the power distribution project;

[0087] An outage time household number addition unit is configured to add the original outage time household numbers and the fault outage time household numbers of each associated line to obtain first outage time household numbers of each associated line;

[0088] An evaluation parameter acquisition unit is configured to acquire a plurality of performance evaluation parameters corresponding to the power distribution project;

[0089] A line determination unit is configured to determine main lines and branch lines included in a grid structure corresponding to each associated line before implementation of the power distribution project;

[0090] A power distribution parameter acquisition unit is configured to acquire a plurality of power distribution parameters corresponding to each evaluation unit by taking each main line and branch line as an evaluation unit;

[0091] An outage time determination unit is configured to determine outage times corresponding to each associated line according to fault conditions corresponding to each evaluation unit;

[0092] An original outage time household number calculation unit is configured to calculate original outage time household numbers of each associated line before implementation of the power distribution project according to the plurality of performance evaluation parameters, the plurality of power distribution parameters, and the outage times;

[0093] A main line determination unit is configured to acquire a unique path between a substation and a target contact point in a grid structure corresponding to each associated line before implementation of the power distribution project, and take the unique path as the main line;

[0094] A branch line determination unit is configured to take a path containing a branch switch in the grid structure except the main line as the branch line;

[0095] An outage time household number calculation unit is configured to calculate upstream outage time household numbers, fault section outage time household numbers, and downstream outage time household numbers of a fault section corresponding to each associated line before implementation of the power distribution project according to the plurality of performance evaluation parameters, the plurality of power distribution parameters, and the outage times;

[0096] An original outage time household number determination unit is configured to determine original outage time household numbers of each associated line according to the upstream outage time household numbers, the fault section outage time household numbers, and the downstream outage time household numbers of the fault section corresponding to each associated line;

[0097] The parameter acquisition unit is configured to acquire, before implementation of the power distribution project, the number of line users corresponding to each associated line, the distribution transformer failure rate, the switching operation time, and the fault repair and power restoration time.

[0098] The outage household number calculation unit is configured to calculate the outage household number of each associated line according to the number of line users corresponding to each associated line, the distribution transformer failure rate, the switching operation time, and the fault repair and power restoration time.

[0099] The device can perform the method provided by all the foregoing embodiments of the application, and has the corresponding function modules and beneficial effects of performing the method. Technical details not described in the embodiments of the application can be referred to the method provided by all the foregoing embodiments of the application.

[0100] Embodiment five

[0101] Figure 5 A structural schematic diagram of an electronic device 10 that can be used to implement embodiments of the application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular telephones, smart phones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown here, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the applications described and / or claimed in this document.

[0102] As shown in Figure 5 The electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11, where the memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0103] A plurality of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0104] The processor 11 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 performs various methods and processes described above, such as the evaluation method of a power distribution project.

[0105] In some embodiments, the evaluation method of a power distribution project can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded onto the RAM 13 and executed by the processor 11, one or more steps of the evaluation method of a power distribution project described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the evaluation method of a power distribution project by any other appropriate means, such as by means of firmware.

[0106] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (PLD), a computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0107] Computer programs for implementing the methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer program, when executed, can cause instructions defined in the flow charts and / or block diagrams to be implemented. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package and partially on a remote machine or entirely on a remote machine or server.

[0108] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0109] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0110] The systems and techniques described herein can be implemented in a computing system that includes a back end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front end component, e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described herein, or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0111] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0112] It should be understood that the various forms of flow shown above can be re-ordered, added to, or deleted from without departing from the scope of the present disclosure. For example, the steps recited in the present disclosure can be executed in parallel, executed in series, or executed in different orders, as long as the desired results of the technical solutions of the present disclosure can be achieved, and the present disclosure is not limited herein.

[0113] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method of evaluating a power distribution project, characterized by, The method comprises: obtaining a power distribution project to be evaluated, determining the first number of households of each associated line before the implementation of the power distribution project; the associated line is the power distribution line corresponding to the power distribution project; determining the second number of households of each associated line after the implementation of the power distribution project; determining the evaluation result corresponding to the power distribution project according to the first number of households of each associated line and the second number of households; wherein, determining the first number of households of each associated line before the implementation of the power distribution project comprises: determining the original number of households of each associated line before the implementation of the power distribution project and the number of households of each associated line in case of failure; adding the original number of households of each associated line and the number of households of each associated line in case of failure to obtain the first number of households of each associated line; wherein, determining the number of households of each associated line in case of failure before the implementation of the power distribution project comprises: obtaining the number of line users, the distribution transformer failure rate, the switching operation time and the fault repair time corresponding to each associated line before the implementation of the power distribution project; wherein, the distribution transformer failure rate is a performance evaluation parameter corresponding to the power distribution project, and the performance evaluation parameter comprises line failure rate, switch failure rate, manual fault positioning, isolation, switching operation time, automatic fault positioning, isolation, switching operation time and fault repair time; calculating the number of households of each associated line in case of failure according to the number of line users, the distribution transformer failure rate, the switching operation time and the fault repair time corresponding to each associated line; wherein, determining the original number of households of each associated line before the implementation of the power distribution project comprises: obtaining a plurality of performance evaluation parameters corresponding to the power distribution project; determining the main lines and branch lines included in the grid structure corresponding to each associated line before the implementation of the power distribution project; taking each main line and branch line as an evaluation unit, obtaining a plurality of power distribution parameters corresponding to each evaluation unit; wherein, the power distribution parameters comprise low-voltage user number, line type, line length, power distribution automation layout information and power supply capacity parameters; determining the outage time corresponding to each associated line according to the fault condition of each evaluation unit; calculating the original number of households of each associated line before the implementation of the power distribution project according to the plurality of performance evaluation parameters, the plurality of power distribution parameters and the outage time; wherein, calculating the original number of households of each associated line before the implementation of the power distribution project according to the plurality of performance evaluation parameters, the plurality of power distribution parameters and the outage time comprises: calculating the number of households of each associated line in case of failure according to the plurality of performance evaluation parameters, the plurality of power distribution parameters and the outage time, calculating the number of households of each associated line in case of failure according to the plurality of performance evaluation parameters, the plurality of power distribution parameters and the outage time, and calculating the number of households of each associated line in case of failure according to the plurality of performance evaluation parameters, the plurality of power distribution parameters and the outage time; determining the original number of households of each associated line according to the number of households of each associated line in case of failure, the number of households of each associated line in case of failure and the number of households of each associated line in case of failure.

2. The method of claim 1, wherein, determining the evaluation result corresponding to the power distribution project according to the first number of households of each associated line and the second number of households comprises: Calculate a target difference value between the first outage household number and the second outage household number of each associated line; Add the target difference values corresponding to each of the associated lines to obtain an evaluation result corresponding to the power distribution project.

3. The method of claim 1, wherein, Determine the main line and the branch line included in the grid structure corresponding to each associated line before the implementation of the power distribution project, including: In the grid structure corresponding to each associated line before the implementation of the power distribution project, obtain a unique path between a transformer substation and a target contact point, and take the unique path as the main line; Take a path containing a branch switch in the grid structure except the main line as the branch line.

4. An evaluation device for a power distribution project, characterized in that, The device includes: A first outage household number determination module configured to obtain a power distribution project to be evaluated, and determine a first outage household number of each associated line before the implementation of the power distribution project; the associated line is a power distribution line corresponding to the power distribution project; A second outage household number determination module configured to determine a second outage household number of each associated line after the implementation of the power distribution project; An evaluation module configured to determine an evaluation result corresponding to the power distribution project according to the first outage household number and the second outage household number of each associated line; The first outage household number determination module includes: A household number determination unit configured to determine an original outage household number and a fault outage household number of each associated line before the implementation of the power distribution project; A household number adding unit configured to add the original outage household number and the fault outage household number of each associated line to obtain a first outage household number of each associated line; A parameter obtaining unit configured to obtain a line user quantity, a distribution transformer failure rate, a switching operation time, and a fault repair and power restoration time of each associated line before the implementation of the power distribution project; the distribution transformer failure rate is a performance evaluation parameter corresponding to the power distribution project, and the performance evaluation parameter includes a line failure rate, a switch failure rate, a manual fault positioning, isolation, and switching operation time, an automatic fault positioning, isolation, and switching operation time, and a fault repair and power restoration time; A fault outage household number calculation unit configured to calculate a fault outage household number of each associated line according to the line user quantity, the distribution transformer failure rate, the switching operation time, and the fault repair and power restoration time corresponding to each associated line; An evaluation parameter obtaining unit configured to obtain a plurality of performance evaluation parameters corresponding to the power distribution project; A line determination unit configured to determine a main line and a branch line included in a grid structure corresponding to each associated line before the implementation of the power distribution project; A power distribution parameter obtaining unit configured to take each main line and branch line as an evaluation unit, and obtain a plurality of power distribution parameters corresponding to each evaluation unit; the power distribution parameters include a low-voltage user number, a line type, a line length, a power distribution automation point distribution information, and a power supply transfer capability parameter; An outage time determination unit configured to determine an outage time corresponding to each associated line according to a fault condition corresponding to each evaluation unit; An original outage household number calculation unit configured to calculate an original outage household number of each associated line before the implementation of the power distribution project according to the plurality of performance evaluation parameters, the plurality of power distribution parameters, and the outage time. A time household number calculation unit is configured to calculate, according to the multiple performance evaluation parameters, the multiple power distribution parameters and the power failure time, a power failure time household number of each associated line on an upstream fault section, a power failure time household number of each associated line on a fault section and a power failure time household number of each associated line on a downstream fault section before implementation of the power distribution project. An original power failure time household number determination unit is configured to determine, according to the power failure time household number of each associated line on an upstream fault section, the power failure time household number of each associated line on a fault section and the power failure time household number of each associated line on a downstream fault section, an original power failure time household number of each associated line. 5.An electronic device, the electronic device comprising: one or more processors; a storage device for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors perform the programs, and the power distribution project evaluation method according to any one of claims 1-3 is implemented.

6. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the power distribution project evaluation method according to any one of claims 1-3.

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