CN114841575A - Power distribution project evaluation method, device, equipment and storage medium - Google Patents
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Abstract
The invention discloses a method, a device, equipment and a storage medium for evaluating a power distribution project, wherein the method comprises the following steps: acquiring a power distribution project to be evaluated, and determining the number of households during first power failure of each associated line before the power distribution project is implemented; determining the number of households when the second power failure of each associated line occurs after the power distribution project is implemented; and determining an evaluation result corresponding to the power distribution project according to the first power failure number of the households and the second power failure number of the associated lines. The technical scheme of the embodiment of the invention can reduce the complexity of the evaluation process of the power distribution project and improve the evaluation efficiency of the power distribution project.
Description
Technical Field
The embodiment of the invention relates to the technical field of power distribution networks, in particular to a method, a device, equipment and a storage medium for evaluating a power distribution project.
Background
At present, when the reliability of a power distribution network planning project is improved, the power distribution network planning project is mainly realized by improving the level of a power network frame and redundancy configuration, namely, the high reliability of the power distribution network planning project is realized by quantifying indexes such as ring network rate, rotatable power supply rate, segment number, inter-station contact rate and distribution automation practical rate. However, when the load increase is met and the reliability of the power distribution network planning project is improved through the method, the technical cost is high, and the improvement of the reliability is also restricted. Therefore, it is desirable to provide a method for evaluating the reliability of a dc power distribution project and improving the planning quality of a power distribution network according to the evaluation result.
Due to the fact that the types of grid structures of the power distribution network are numerous, and the difference between different grid structures is huge, when power distribution projects are evaluated in the prior art, a correlation power grid model needs to be independently constructed for different grid structures of the power distribution network, and a corresponding reliability formula is solved.
However, in the prior art, for each planning project, modeling and formula derivation need to be restarted for the distribution lines related to the planning project, which leads to complicated analysis work; secondly, due to the lack of a standardized solving process, the prior art is difficult to evaluate a large batch of power distribution network planning projects, and the operation feasibility is low.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a storage medium for evaluating a power distribution project, which can reduce the complexity of the evaluation process of the power distribution project and improve the evaluation efficiency of the power distribution project.
In a first aspect, an embodiment of the present invention provides a method for evaluating a power distribution project, where the method includes:
acquiring a power distribution project to be evaluated, and determining the number of households when the first power failure of each associated line occurs before the power distribution project is implemented; the associated line is a distribution line corresponding to the distribution project;
determining the number of households in the second power failure of each associated line after the power distribution project is implemented;
and determining an evaluation result corresponding to the power distribution project according to the first power outage house number and the second power outage house number of each associated line.
In a second aspect, an embodiment of the present invention further provides an apparatus for evaluating a power distribution project, where the apparatus includes:
the first power failure number determining module is used for acquiring a power distribution project to be evaluated and determining the first power failure number of each associated line before the power distribution project is implemented; the associated line is a distribution line corresponding to the distribution project;
the second power failure number determining module is used for determining the second power failure number of the user of each associated line after the power distribution project is implemented;
and the evaluation module is used for determining an evaluation result corresponding to the power distribution project according to the first power failure number of households and the second power failure number of households of each associated line.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
one or more processors;
storage means for storing one or more programs;
the method for evaluating a power distribution project provided by any of the embodiments of the present invention is implemented when the one or more programs are executed by the one or more processors so that the one or more processors execute the programs.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the method for evaluating a power distribution project according to any embodiment of the present invention.
According to the technical scheme of the embodiment of the invention, by acquiring the power distribution project to be evaluated, determining the number of the households during the first power failure of each associated line before the power distribution project is implemented, determining the number of the households during the second power failure of each associated line after the power distribution project is implemented, and determining the evaluation result corresponding to the power distribution project according to the number of the households during the first power failure and the number of the households during the second power failure of each associated line, the evaluation requirement of the large-batch power distribution project can be met, the complexity of the power distribution project evaluation process is reduced, and the evaluation efficiency of the power distribution project is improved.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for evaluating a power distribution project according to an embodiment of the present invention;
fig. 2 is a flowchart of an evaluation method for a power distribution project according to a second embodiment of the present invention;
fig. 3 is a flowchart of an evaluation method for a power distribution project according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an evaluation apparatus for a power distribution project according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device implementing the evaluation method of a power distribution project according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of an evaluation method for a power distribution project according to an embodiment of the present invention, where the present embodiment is applicable to a case of evaluating reliability of a power distribution network planning project, and the method may be executed by an evaluation device for a power distribution project. The evaluation device of the power distribution project can be implemented by software and/or hardware, and can be generally integrated in an electronic device (such as a terminal or a server) with a data processing function, and specifically includes the following steps:
In this embodiment, the power distribution project may be a power distribution network planning project that needs to be subjected to reliability evaluation, and the power distribution project may correspond to a plurality of power distribution lines (i.e., associated lines). After the power distribution project is obtained, optionally, the number of the power failure users (i.e., the number of the first power failure users) of each associated line before the power distribution project is implemented may be calculated according to the power distribution parameters of the power distribution project. Specifically, the number of the first power outage subscribers may be the power outage duration of each subscriber in each associated line before the power distribution project is implemented.
And step 120, determining the number of the households when the second power failure of each associated line occurs after the power distribution project is implemented.
In this embodiment, after the first number of power failure users of each associated line before the power distribution project is implemented is calculated, the second number of power failure users of each associated line after the power distribution project is implemented may be calculated by the same calculation method. Specifically, the number of the users in the second power outage time may be the power outage time of each user in each associated line after the power distribution project is implemented.
And step 130, 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.
In this step, optionally, the reliability of the power distribution project may be evaluated according to a difference value between the first number of users in the power outage and the second number of users in the power outage in each associated line, so as to obtain an evaluation result for representing the reliability of the power distribution project.
In this embodiment, a method for evaluating reliability of a dc power distribution project is provided by calculating the number of users in the first power outage and the number of users in the second power outage, and the evaluation requirements of a large number of projects in a planning project library can be met. Compared with the prior art that a correlation power grid model is established for the power distribution network frame, the calculation process can be reduced, the complexity of the power distribution project evaluation process is reduced, and the reference significance is provided for improving the quality and accuracy of the power distribution network planning project.
According to the technical scheme of the embodiment of the invention, by acquiring the power distribution project to be evaluated, determining the number of the households during the first power failure of each associated line before the power distribution project is implemented, determining the number of the households during the second power failure of each associated line after the power distribution project is implemented, and determining the evaluation result corresponding to the power distribution project according to the number of the households during the first power failure and the number of the households during the second power failure of each associated line, the evaluation requirement of the large-batch power distribution project can be met, the complexity of the power distribution project evaluation process is reduced, and the evaluation efficiency of the power distribution project is improved.
Example two
This embodiment is a further refinement of the above embodiment, and the same or corresponding terms as those of the above embodiment are explained, and this embodiment is not described again. Fig. 2 is a flowchart of an evaluation method for a power distribution project provided in the second embodiment, the technical solution of the second embodiment may be combined with one or more methods in the solutions of the foregoing embodiments, as shown in fig. 2, the method provided in the second embodiment may further include:
and step 210, acquiring a power distribution project to be evaluated, and determining the number of the original power failure households of each associated line and the number of the original power failure households of the power distribution project before implementation.
In this embodiment, optionally, the original number of users in the power outage may be understood as the number of users in the power outage due to the power distribution of each associated line. The number of the users in the power failure of the fault can be understood as the number of the users in the power failure caused by the distribution transformer fault of each associated line.
In a particular embodimentIn an example, the original number of households T 'at the time of power failure of each associated line may be calculated from the power distribution parameter of each associated line' Li The number of households T 'at the time of power failure of each related line can be calculated according to the failure condition of each related line' Ti 。
And step 220, adding the original number of the users in the power failure of each associated line with the number of the users in the power failure of the fault to obtain the first number of the users in the power failure of each associated line.
In a specific embodiment, the original blackout hours of each associated line can be counted as T' Li And number of households T 'at the time of failure power failure' Ti Adding to obtain a first power failure house number T 'of each related line' i Namely:
T′ i ＝T′ Li +T′ Ti
and step 230, determining the number of the households when the second power failure of each associated line occurs after the power distribution project is implemented.
In this embodiment, the number of users T ″ in the second blackout time of each associated line after the power distribution project is implemented may be calculated for the grid structure of each associated line in the same manner as the above steps after the power distribution project is implemented i 。
And 240, calculating a target difference value between the number of the users in the first power failure and the number of the users in the second power failure of each associated line.
In this step, the target difference Δ T of the number of users before and after the power failure of each related line can be calculated according to the following formula i ：
ΔT i ＝T′ i -T″ i
And step 250, accumulating the target difference values corresponding to the associated lines to obtain an evaluation result corresponding to the power distribution project.
In this step, the evaluation result Δ T corresponding to the power distribution item may be obtained according to the following formula:
ΔT＝∑ i ΔT i
according to the technical scheme of the embodiment of the invention, the power distribution project to be evaluated is obtained, the original power failure number of each associated line and the fault power failure number of each associated line are determined before the power distribution project is implemented, the original power failure number of each associated line and the fault power failure number of each associated line are added to obtain the first power failure number of each associated line, the second power failure number of each associated line is determined after the power distribution project is implemented, the target difference value between the first power failure number of each associated line and the second power failure number of each associated line is calculated, and the target difference values corresponding to each associated line are accumulated to obtain the evaluation result corresponding to the power distribution project.
EXAMPLE III
This embodiment is a further refinement of the above embodiment, and the same or corresponding terms as those of the above embodiment are explained, and this embodiment is not described again. Fig. 3 is a flowchart of an evaluation method for a power distribution project provided in a third embodiment, in this embodiment, the technical solution of this embodiment may be combined with one or more methods in the solutions of the foregoing embodiments, as shown in fig. 3, the method provided in this embodiment may further include:
In this embodiment, optionally, the multiple performance evaluation parameters corresponding to the power distribution project may include: line fault rate λ l (ii) a Distribution transformer failure rate lambda t (ii) a Switch failure rate λ s (ii) a Manual fault positioning, isolating and switching operation time t dfm (ii) a Automatic fault location, isolation and switching operation time t dfa (ii) a Time t for restoring power after fault restoration f 。
And step 320, determining a main line and a branch line included in the grid structure corresponding to each associated line before the power distribution project is implemented.
In an embodiment of this embodiment, determining the trunk line and the branch line included in the grid structure corresponding to each associated line before the power distribution project is implemented includes: acquiring a unique path between a transformer substation and a target contact point in a grid structure corresponding to each associated line before a power distribution project is implemented, and taking the unique path as the main line; and taking a path including a branch switch in the grid structure except for the trunk line as the branch line.
The advantage of this arrangement is that the efficiency of the assessment of the power distribution project can be improved by partitioning the grid structure of the associated lines.
And step 330, taking each main line and branch line as an evaluation unit, and acquiring a plurality of power distribution parameters corresponding to each evaluation unit.
In this step, optionally, the main line and the branch line may be used as the smallest evaluation unit, and multiple power distribution parameters corresponding to each evaluation unit, such as the number of low-voltage users, the type of line, the length of line, distribution automation distribution point information, and the power transfer capability parameter, are acquired.
And 340, determining the power failure time corresponding to each associated line according to the fault condition corresponding to each evaluation unit.
In this step, the fault conditions corresponding to each evaluation unit may be enumerated in sequence, and the power outage time of the user corresponding to each associated line after each evaluation unit has a fault is calculated and counted.
And 350, calculating the original power failure number of each associated line before the power distribution project is implemented according to the multiple performance evaluation parameters, the multiple power distribution parameters and the power failure time.
In an embodiment of this embodiment, calculating, according to the multiple performance evaluation parameters, the multiple power distribution parameters, and the power outage time, the number of original power outage users of each associated line before the power distribution project is implemented includes: calculating the number of households when the upstream of the fault section corresponding to each associated line has power failure, the number of households when the fault section has power failure and the number of households when the downstream of the fault section has power failure before the power distribution project is implemented according to the multiple performance evaluation parameters, the multiple power distribution parameters and the power failure time; and determining the original number of the households in the power failure of each associated line according to the number of the households in the power failure of the upstream of the fault section corresponding to each associated line, the number of the households in the power failure of the fault section and the number of the households in the power failure of the downstream of the fault section.
In one particular embodiment, if the sectionalizer is a non-automated switch, the number of upstream users C can be based on the fault section u Positioning and isolating artificial fault and operating time t of artificial switching dfm Calculating the number of the users C during the upstream power failure of the fault section corresponding to each associated line u t dfm (ii) a If the section switch is an automatic switch, the automatic fault location, isolation and automatic switching operation time t can be determined according to the automatic fault location dfa Calculating the number of the users C during the upstream power failure of the fault section corresponding to each associated line u t dfa 。
In this embodiment, the number of users C can be determined according to the fault section f Fault location, isolation, switching operation time (t) dfm Or t dfa ) And fault repair power restoration time t f Calculating the number of the users C during the power failure of the fault section f (t dfm +t) f Or C f (t dfa +t f )。
In this embodiment, if the downstream users (the number of users is C) in the fault section d ) Can be switched to supply power, and can be positioned, isolated and switched over according to the fault operation time (t) dfm Or t dfa ) Calculating the number of the households C during the downstream power failure of the fault section d t dfm Or C d t dfa (ii) a If the downstream users of the fault section can not supply power, the operation time (t) of the fault section can be positioned, isolated and switched back according to the fault dfm Or t dfa ) And fault repair power restoration time t f Calculating the number of the households C during the downstream power failure of the fault section d (t dfm +t f ) Or C d (t dfa +t f )。
And step 360, determining the number of the users in the power failure of each associated line before the power distribution project is implemented.
In one embodiment of this embodiment, determining the number of users who have failed the power supply of each associated line before the power distribution project is implemented includes: acquiring the number of line users, distribution transformer fault rate, switching operation time and fault repair power restoration time corresponding to each associated line before the power distribution project is implemented; according to the corresponding line of each associated lineNumber of users C, distribution transformer fault rate lambda t Switching operation time t dfm And fault repair power restoration time t f Calculating the number of households T 'at the time of power failure of each related line' Ti 。
In a specific embodiment, the number of households T 'at the time of power failure of each associated line can be calculated according to the following formula' Ti ：
T′ Ti ＝Cλ t (t dfm +t f )
And 370, adding the original number of the power failure users of each associated line to the number of the power failure users of the fault power failure to obtain the first number of the power failure users of each associated line.
And 380, determining the number of the users in the second power failure of each associated line after the power distribution project is implemented.
And 390, determining an evaluation result corresponding to the power distribution project according to the first power outage user number and the second power outage user number of each associated line.
The technical scheme of the embodiment of the invention determines a main line and a branch line which are included in a grid structure corresponding to each associated line of a power distribution project before implementation by acquiring the power distribution project to be evaluated and a plurality of performance evaluation parameters corresponding to the power distribution project, acquires a plurality of power distribution parameters corresponding to each evaluation unit by taking each main line and branch line as evaluation units, determines power failure time corresponding to each associated line according to fault conditions corresponding to each evaluation unit, calculates the original power failure number and the fault power failure number of each associated line of the power distribution project before implementation according to the plurality of performance evaluation parameters, the plurality of power distribution parameters and the power failure time, adds the original power failure number and the fault power failure number of each associated line to obtain a first power failure number of each associated line, determines a second power failure number of each associated line of the power distribution project after implementation, according to the number of the first power-off households and the number of the second power-off households of each associated line, the technical means for determining the evaluation results corresponding to the power distribution projects can meet the evaluation requirements of large-batch power distribution projects, reduce the complexity of the power distribution project evaluation process and improve the evaluation efficiency of the power distribution projects.
Example four
Fig. 4 is a schematic structural diagram of an evaluation apparatus for a power distribution project according to a fourth embodiment of the present invention, as shown in fig. 4, the apparatus includes: a first blackout house number determination module 410, a second blackout house number determination module 420, and an evaluation module 430.
The first blackout house number determining module 410 is configured to obtain a power distribution project to be evaluated, and determine the first blackout house number of each associated line before the power distribution project is implemented; the associated line is a distribution line corresponding to the distribution project;
a second blackout house number determining module 420, configured to determine a second blackout house number of each associated line after the power distribution project is implemented;
the evaluation module 430 is configured to determine an evaluation result corresponding to the power distribution project according to the first number of power outage households and the second number of power outage households of each associated line.
According to the technical scheme provided by the embodiment of the invention, by acquiring the power distribution project to be evaluated, determining the number of the households during the first power failure of each associated line before the power distribution project is implemented, determining the number of the households during the second power failure of each associated line after the power distribution project is implemented, and determining the evaluation result corresponding to the power distribution project according to the number of the households during the first power failure and the number of the households during the second power failure of each associated line, the evaluation requirement of the large-batch power distribution project can be met, the complexity of the power distribution project evaluation process is reduced, and the evaluation efficiency of the power distribution project is improved.
On the basis of the foregoing embodiment, the first power outage time number determining module 410 includes:
the number-of-residents determining unit is used for determining the number of the residents in the original power failure and the number of the residents in the fault power failure of each associated line before the power distribution project is implemented;
the number-of-users adding unit is used for adding the original number of the users in the power failure of each associated line and the number of the users in the power failure of the fault to obtain a first number of the users in the power failure of each associated line;
the evaluation parameter acquisition unit is used for acquiring a plurality of performance evaluation parameters corresponding to the power distribution items;
the line determining unit is used for determining a trunk line and branch lines which are included in the grid structure corresponding to each associated line before the power distribution project is implemented;
the power distribution parameter acquisition unit is used for acquiring a plurality of power distribution parameters corresponding to each evaluation unit by taking each main line and each branch line as the evaluation unit;
the power failure time determining unit is used for determining the power failure time corresponding to each associated line according to the fault condition corresponding to each evaluation unit;
the original power failure number calculation unit is used for calculating the original power failure number of each associated line before the power distribution project is implemented according to the multiple performance evaluation parameters, the multiple power distribution parameters and the power failure time;
the main line determining unit is used for acquiring a unique path between a transformer substation and a target contact point in a grid structure corresponding to each associated line before the implementation of a power distribution project, and taking the unique path as the main line;
a branch line determination unit configured to use, as the branch line, a path including a branch switch in the grid structure, in addition to the trunk line;
the number-of-residences calculation unit is used for calculating the number of residences during power failure at the upstream of the fault section, the number of residences during power failure at the fault section and the number of residences during power failure at the downstream of the fault section, which correspond to each associated line, of the power distribution project before implementation according to the multiple performance evaluation parameters, the multiple power distribution parameters and the power failure time;
the original power failure number determining unit is used for determining the original power failure number of the associated lines according to the upstream power failure number of the fault section, the power failure number of the fault section and the downstream power failure number of the fault section corresponding to the associated lines;
the parameter acquisition unit is used for acquiring the number of line users, the distribution transformation fault rate, the switching operation time and the fault repair power restoration time corresponding to each associated line before the power distribution project is implemented;
and the number-of-households during fault power failure calculation unit is used for calculating the number of the households during fault power failure of each associated line according to the number of line users, the distribution transformation fault rate, the switching operation time and the fault restoration power restoration time corresponding to each associated line.
The device can execute the methods provided by all the embodiments of the invention, and has corresponding functional modules and beneficial effects for executing the methods. For technical details which are not described in detail in the embodiments of the present invention, reference may be made to the methods provided in all the aforementioned embodiments of the present invention.
EXAMPLE five
FIG. 5 illustrates a schematic diagram of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 5, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM)12, a Random Access Memory (RAM)13, and the like, wherein the memory stores a computer program executable by the at least one processor, and the processor 11 can perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM)12 or the computer program loaded from a storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data necessary for the operation of the electronic apparatus 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
A number 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, or the like; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of 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 suitable processor, controller, microcontroller, or the like. The processor 11 performs the various methods and processes described above, such as the evaluation method of the power distribution project.
In some embodiments, the method of evaluating a power distribution project may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may 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 into RAM 13 and executed by processor 11, one or more steps of the above described method of evaluating a power distribution project may be performed. Alternatively, in other embodiments, the processor 11 may be configured by any other suitable means (e.g., by means of firmware) to perform the evaluation method of the power distribution item.
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on a machine, as a stand-alone software package partly on a machine and partly on a remote machine or entirely on a remote machine or server.
In the context of the present invention, a computer-readable storage medium may 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 may 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, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, 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.
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 a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; 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 may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here 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 here), 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: local Area Networks (LANs), Wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may 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. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of evaluating a power distribution project, the method comprising:
acquiring a power distribution project to be evaluated, and determining the number of households when the first power failure of each associated line occurs before the power distribution project is implemented; the associated line is a distribution line corresponding to the distribution project;
determining the number of households in the second power failure of each associated line after the power distribution project is implemented;
and determining an evaluation result corresponding to the power distribution project according to the first power outage house number and the second power outage house number of each associated line.
2. The method of claim 1, wherein determining a first outage occurrence for each associated line prior to the performance of the power distribution project comprises:
determining the number of original power failure households of each associated line and the number of the power failure households of each associated line before the power distribution project is implemented;
and adding the original number of the users in the power failure of each associated line with the number of the users in the power failure of the fault to obtain the first number of the users in the power failure of each associated line.
3. The method of claim 1, wherein determining the evaluation corresponding to the power distribution project based on a first number of blackout households and a second number of blackout households for each of the associated lines comprises:
calculating a target difference value between the number of the households in the first power failure and the number of the households in the second power failure of each associated line;
and accumulating the target difference values corresponding to the associated lines to obtain an evaluation result corresponding to the power distribution project.
4. The method of claim 2, wherein determining the number of households in the power distribution project prior to the time of the original outage for each associated line comprises:
acquiring a plurality of performance evaluation parameters corresponding to the power distribution project;
determining a trunk line and branch lines included in a grid structure corresponding to each associated line before the power distribution project is implemented;
taking each main line and each branch line as an evaluation unit, and acquiring a plurality of power distribution parameters corresponding to each evaluation unit;
determining power failure time corresponding to each associated line according to the fault condition corresponding to each evaluation unit;
and calculating the original power failure number of each associated line before the power distribution project is implemented according to the multiple performance evaluation parameters, the multiple power distribution parameters and the power failure time.
5. The method of claim 4, wherein determining the trunk lines and branch lines included in the grid structure corresponding to each associated line of the power distribution project prior to implementation comprises:
acquiring a unique path between a transformer substation and a target contact point in a grid structure corresponding to each associated line before a power distribution project is implemented, and taking the unique path as the main line;
and taking a path including a branch switch in the grid structure except for the trunk line as the branch line.
6. The method of claim 4, wherein calculating the number of original blackout residences of each associated line of the power distribution project before implementation based on the plurality of performance evaluation parameters, the plurality of power distribution parameters, and the blackout time comprises:
calculating the number of households when the upstream of the fault section corresponding to each associated line has power failure, the number of households when the fault section has power failure and the number of households when the downstream of the fault section has power failure before the power distribution project is implemented according to the multiple performance evaluation parameters, the multiple power distribution parameters and the power failure time;
and determining the original number of the households in the power failure of each associated line according to the number of the households in the power failure of the upstream of the fault section corresponding to each associated line, the number of the households in the power failure of the fault section and the number of the households in the power failure of the downstream of the fault section.
7. The method of claim 2, wherein determining the number of households that failed the power distribution project to which the power distribution project was applied for each associated line comprises:
acquiring the number of line users, distribution transformer fault rate, switching operation time and fault repair power restoration time corresponding to each associated line before the power distribution project is implemented;
and calculating the number of the users at the time of the fault power failure of each associated line according to the number of line users corresponding to each associated line, the distribution transformer fault rate, the switching operation time and the fault restoration power restoration time.
8. An apparatus for evaluating a power distribution project, the apparatus comprising:
the first power failure number determining module is used for acquiring a power distribution project to be evaluated and determining the first power failure number of each associated line before the power distribution project is implemented; the associated line is a distribution line corresponding to the distribution project;
the second power failure number determining module is used for determining the second power failure number of the user of each associated line after the power distribution project is implemented;
and the evaluation module is used for determining an evaluation result corresponding to the power distribution project according to the first power failure number of households and the second power failure number of households of each associated line.
9. An electronic device, the electronic device comprising:
one or more processors;
storage means for storing one or more programs;
the one or more programs when executed by the one or more processors cause the one or more processors to implement the method of evaluating a power distribution project of any of claims 1-7 when the program is executed.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out a method of evaluating a power distribution project according to any one of claims 1 to 7.
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