CN115037039A - Active power distribution network line loss monitoring method, device, equipment and readable storage medium - Google Patents
Active power distribution network line loss monitoring method, device, equipment and readable storage medium Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The application discloses active power distribution network line loss monitoring method and device, computer equipment and computer readable storage medium, relates to the technical field of power distribution network line loss monitoring, and aims to obtain, analyze and process 10kV active power distribution network line archives and acquired information data, display the abnormal occurrence time and phase of 10kV power distribution network line loss in a curve graph mode, monitor each time period and each phase line loss of 10kV active power distribution network lines and provide support for 10kV power distribution network line loss treatment. The method comprises the following steps: establishing data connection with a database server, and calling a storage program to perform data interaction with the database server; obtaining a line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result; and sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying.
Description
Technical Field
The present application relates to the field of power distribution network line loss monitoring technologies, and in particular, to a method and an apparatus for monitoring line loss of an active power distribution network, a computer device, and a computer-readable storage medium.
Background
At present, the power grid technology is continuously developed, and along with the wide access of high-permeability distributed photovoltaic to a 10kV distribution network, the characteristics of wide line coverage, complex wiring, flexible and various operation modes and changeable trend directions are presented, so that the line loss of the distribution network for the line is difficult to accurately monitor and analyze.
When carrying out 10kV distribution network line loss analysis, the current correlation technical staff mainly focuses on the comparison between theoretical line loss and actual line loss, and does not monitor abnormal time and phase of line loss, which is not beneficial to monitoring line loss in a refined manner, so that a 10kV active distribution network line loss monitoring method is urgently needed for monitoring line loss of each time segment and each phase of a 10kV active distribution network line in real time.
Disclosure of Invention
In view of this, the present application provides a method, an apparatus, a computer device, and a computer readable storage medium for monitoring line loss of an active power distribution network, and mainly aims to solve the problem that, when analyzing the line loss of a 10kV power distribution network at present, the analysis mainly focuses on the comparison between theoretical line loss and actual line loss, and does not monitor the time and phase of abnormal line loss, which is not beneficial to the fine monitoring of line loss.
According to a first aspect of the present application, a method for monitoring line loss of an active power distribution network is provided, where the method includes:
establishing data connection with a database server, and calling a storage program to perform data interaction with the database server;
obtaining a line loss analysis result of time-sharing split-phase line loss data of a 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result;
and sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying.
Optionally, the obtaining of the line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line includes:
acquiring line archive information and line acquisition information of a 10kv distribution line;
reading the metering point acquisition time stored in the line acquisition information, and carrying out differential operation on the metering point acquisition time to obtain a plurality of time intervals;
aggregating the plurality of time intervals to obtain the time-sharing data of the electric energy meter;
based on the electric energy meter time-sharing data, adopt line acquisition information determines the line loss analysis result of 10kV active power distribution network line time-sharing and phase-splitting line loss data, the line loss analysis result includes the time-sharing electric quantity of every metering point electric energy meter, the time-sharing and phase-splitting electric quantity of every metering point electric energy meter, 10kV distribution network line time-sharing and phase-splitting line loss rate and 10kV distribution network line time-sharing and phase-splitting economic operation rate.
Optionally, the determining the time-sharing electric quantity of the electric energy meter at each metering point includes:
for each time interval in the plurality of time intervals, extracting a first electric energy indicating value corresponding to the initial acquisition time and a second electric energy indicating value corresponding to the termination acquisition time in the time interval from the line acquisition information;
calculating a difference value between the second electric energy indicating value and the first electric energy indicating value, and taking the difference value as the total electric quantity of the electric energy meter in the current time interval;
calculating the total electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of total electric quantities;
and associating the plurality of total electric quantities with the electric energy meter time-sharing data to obtain the time-sharing electric quantity.
Optionally, the determining the time-sharing phase-splitting electric quantity of the electric energy meter at each metering point includes:
identifying the line acquisition information, determining at least one phase corresponding to the metering point electric energy meter, and judging whether the electric energy meter supports a split-phase electric quantity metering function;
if the electric energy meter supports the split-phase electric quantity metering function, reading electric quantity values corresponding to each phase in the line acquisition information to obtain split-phase electric quantity values, and associating the split-phase electric quantity values with the time-sharing data of the electric energy meter to obtain the time-sharing split-phase electric quantity.
Optionally, after determining whether the electric energy meter supports the split-phase metering electric quantity function, the method further includes:
if the electric energy meter does not support the split-phase metering electric quantity function, extracting total power data corresponding to initial acquisition time in the time intervals, initial power data corresponding to the initial acquisition time of each phase in the at least one phase in the line acquisition information, and executing the following processing for each phase, for each time interval in the plurality of time intervals: acquiring total electric quantity corresponding to the time interval based on the time-sharing electric quantity of the electric energy meter, taking the ratio of the initial power data corresponding to the phase difference to the total power data as a power proportion corresponding to the phase difference, and multiplying the power proportion by the total electric quantity to obtain target electric quantity corresponding to the phase difference;
calculating at least one target electric quantity corresponding to at least one phase, and taking the at least one target electric quantity as the split-phase electric quantity of the time interval;
calculating the phase splitting electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of phase splitting electric quantities;
and associating the plurality of phase separation electric quantities with the electric energy meter time-sharing data to obtain the time-sharing phase separation electric quantity.
Optionally, the determining the time-sharing and phase-splitting line loss rate of the 10kV distribution network line includes:
determining time-sharing and phase-splitting electric quantity corresponding to the circuit archive information based on the circuit acquisition data and the electric energy meter time-sharing data, extracting a plurality of input electric quantities from the time-sharing and phase-splitting electric quantity to serve as power supply quantity, and extracting a plurality of output electric quantities to serve as power selling quantity;
according to the line acquisition data, at least one phase corresponding to the metering point electric energy meter is determined, and the following processing is executed for each phase: determining a plurality of time-sharing electric quantities corresponding to the plurality of input electric quantities in the power supply quantity, calculating a first sum of the plurality of time-sharing electric quantities, determining a plurality of time-sharing electric quantities corresponding to the plurality of output electric quantities in the power selling quantity, calculating a second sum of the plurality of time-sharing electric quantities, calculating a difference value between the first sum and the second sum to obtain line time-sharing line losses corresponding to the current phases, calculating a ratio of the line time-sharing line losses to the first sum, and taking the ratio as a 10kV distribution network line time-sharing line loss rate;
calculating the time-sharing line loss rate of each 10kV distribution network line corresponding to each phase to obtain at least one time-sharing line loss rate of the 10kV distribution network line;
and aggregating the time-sharing line loss rate of the at least one 10kV distribution network line to obtain the time-sharing phase-splitting line loss rate of the 10kV distribution network line.
Optionally, the determining the time-sharing split-phase economic operation rate of the 10kV distribution network line includes:
extracting a preset time-sharing split-phase line loss rate and the total line number of 10kv power distribution network lines from the line archive information, and determining at least one phase corresponding to the metering point electric energy meter according to the line acquisition data;
for each phase in the at least one phase, calculating a 10kV distribution network line time-sharing line loss rate corresponding to the phase, and comparing the 10kV distribution network line time-sharing line loss rate with the preset time-sharing phase-sharing line loss rate to obtain a comparison result;
counting the number of lines of which the comparison results indicate that the time-sharing line loss rate of the 10kV distribution network lines is smaller than the preset time-sharing phase-splitting line loss rate, and calculating the percentage of the number of the lines occupying the total number of the lines to obtain the different time-sharing economic operation rates;
calculating the time-sharing economic operation rate corresponding to each phase in the at least one phase to obtain at least one time-sharing economic operation rate;
and aggregating the at least one time-sharing economic operation rate to obtain the time-sharing and phase-splitting economic operation rate of the 10kV distribution network line.
According to a second aspect of the present application, there is provided an active power distribution network line loss monitoring device, the device including:
the connection module is used for establishing data connection with the database server and calling a storage program to perform data interaction with the database server;
the acquisition module is used for acquiring a line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result;
and the display module is used for sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying.
Optionally, the obtaining module is configured to obtain line profile information and line acquisition information of the 10kv power distribution line; reading the metering point acquisition time stored in the line acquisition information, and carrying out differential operation on the metering point acquisition time to obtain a plurality of time intervals; aggregating the plurality of time intervals to obtain the time-sharing data of the electric energy meter; based on the electric energy meter time-sharing data, line loss analysis results of the 10kV active power distribution network line time-sharing and phase-splitting line loss data are determined by adopting the line acquisition information, and the line loss analysis results comprise time-sharing electric quantity of each metering point electric energy meter, time-sharing and phase-splitting electric quantity of each metering point electric energy meter, 10kV distribution network line time-sharing and phase-splitting line loss rate and 10kV distribution network line time-sharing and phase-splitting economic operation rate.
Optionally, the obtaining module is configured to, for each time interval in the multiple time intervals, extract, in the line acquisition information, a first electric energy indicating value corresponding to an initial acquisition time in the time interval, and a second electric energy indicating value corresponding to a termination acquisition time; calculating a difference value between the second electric energy indicating value and the first electric energy indicating value, and taking the difference value as the total electric quantity of the electric energy meter in the current time interval; calculating the total electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of total electric quantities; and associating the plurality of total electric quantities with the electric energy meter time-sharing data to obtain the time-sharing electric quantity.
Optionally, the obtaining module is configured to identify the line acquisition information, determine at least one phase corresponding to the metering point electric energy meter, and determine whether the electric energy meter supports a split-phase electric quantity metering function; if the electric energy meter supports the split-phase electric quantity metering function, reading electric quantity values corresponding to each phase in the line acquisition information to obtain split-phase electric quantity values, and associating the split-phase electric quantity values with the time-sharing data of the electric energy meter to obtain the time-sharing split-phase electric quantity.
Optionally, the obtaining module is further configured to, for each time interval in the plurality of time intervals, extract, in the line acquisition information, total power data corresponding to an initial acquisition time in the time interval, initial power data corresponding to the initial acquisition time of each phase in the at least one phase, and perform the following processing on each phase, if the electric energy meter does not support the split-phase metering electric quantity function: acquiring total electric quantity corresponding to the time interval based on the time-sharing electric quantity of the electric energy meter, taking the ratio of the initial power data corresponding to the phase difference to the total power data as a power proportion corresponding to the phase difference, and multiplying the power proportion by the total electric quantity to obtain target electric quantity corresponding to the phase difference; calculating at least one target electric quantity corresponding to at least one phase, and taking the at least one target electric quantity as the split-phase electric quantity of the time interval; calculating the phase splitting electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of phase splitting electric quantities; and associating the plurality of phase-splitting electric quantities with the electric energy meter time-sharing data to obtain the time-sharing phase-splitting electric quantity.
Optionally, the obtaining module is configured to determine, based on the line acquisition data and the time-sharing data of the electric energy meter, a time-sharing and phase-splitting electric quantity corresponding to the line profile information, extract a plurality of input electric quantities from the time-sharing and phase-splitting electric quantity as a power supply quantity, and extract a plurality of output electric quantities as a power selling quantity; according to the line acquisition data, at least one phase corresponding to the metering point electric energy meter is determined, and the following processing is executed for each phase: determining a plurality of time-sharing electric quantities corresponding to the plurality of input electric quantities in the power supply quantity, calculating a first sum of the plurality of time-sharing electric quantities, determining a plurality of time-sharing electric quantities corresponding to the plurality of output electric quantities in the power selling quantity, calculating a second sum of the plurality of time-sharing electric quantities, calculating a difference value between the first sum and the second sum to obtain line time-sharing line losses corresponding to the current phases, calculating a ratio of the line time-sharing line losses to the first sum, and taking the ratio as a line time-sharing line loss rate of a 10kV distribution network; calculating the time-sharing line loss rate of each 10kV distribution network line corresponding to each phase to obtain at least one time-sharing line loss rate of the 10kV distribution network line; and aggregating the time-sharing line loss rate of the at least one 10kV distribution network line to obtain the time-sharing phase-splitting line loss rate of the 10kV distribution network line.
Optionally, the obtaining module is configured to extract a preset time-sharing split-phase line loss rate and a total line number of 10kv power distribution network lines from the line profile information, and determine at least one phase corresponding to the metering point electric energy meter according to the line acquisition data; for each phase in the at least one phase, calculating a time-sharing line loss rate of the 10kV distribution network line corresponding to the phase, and comparing the time-sharing line loss rate of the 10kV distribution network line with the preset time-sharing phase-splitting line loss rate to obtain a comparison result; counting the number of lines of which the comparison result indicates that the time-sharing line loss rate of the 10kV distribution network line is smaller than the preset time-sharing phase-splitting line loss rate, and calculating the percentage of the number of the lines occupying the total number of the lines to obtain the different time-sharing economic operation rates; calculating the time-sharing economic operation rate corresponding to each phase in the at least one phase to obtain at least one time-sharing economic operation rate; and aggregating the at least one time-sharing economic operation rate to obtain the time-sharing and phase-splitting economic operation rate of the 10kV distribution network line.
According to a third aspect of the present application, there is provided a computer device comprising a memory storing a computer program and a processor implementing the steps of the method of any of the first aspects when the computer program is executed.
According to a fourth aspect of the present application, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of any of the first aspects described above.
By means of the technical scheme, the method, the device, the computer equipment and the readable storage medium for monitoring the line loss of the active power distribution network are used for firstly establishing data connection with a database server and calling a storage program to perform data interaction with the database server. And then, obtaining a line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result. And finally, sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying. According to the method and the system for monitoring the line loss of the 10kV active power distribution network on line, the line files and the collected information data of the 10kV active power distribution network are acquired, analyzed and processed, the abnormal occurrence time and phase of the line loss of the 10kV power distribution network are displayed in a curve graph mode, the monitoring of the line loss of each phase line and each time period of the 10kV active power distribution network is realized, and the support is provided for the management of the line loss of the 10kV power distribution network.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a schematic flowchart of a line loss monitoring method for an active power distribution network according to an embodiment of the present application;
fig. 2A shows a schematic flowchart of a line loss monitoring method for an active power distribution network according to an embodiment of the present application;
fig. 2B shows a schematic flow chart of a line loss monitoring method for an active power distribution network according to an embodiment of the present application;
fig. 2C shows a result curve of an active power distribution network line loss monitoring method provided in the embodiment of the present application;
fig. 2D shows a result graph of an active power distribution network line loss monitoring method provided by the embodiment of the present application;
fig. 2E shows a result graph of an active power distribution network line loss monitoring method provided in the embodiment of the present application;
fig. 2F shows a result graph of an active power distribution network line loss monitoring method provided by the embodiment of the present application;
fig. 3 is a schematic structural diagram illustrating an active power distribution network line loss monitoring device according to an embodiment of the present application;
fig. 4 shows a schematic device structure diagram of a computer apparatus according to an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the application provides a line loss monitoring method for an active power distribution network, as shown in fig. 1, the method includes:
101. and establishing data connection with the database server, and calling the storage program to perform data interaction with the database server.
102. Line loss analysis results of the 10kV active power distribution network line time-sharing split-phase line loss data are obtained, and a line loss curve graph and an economic operation rate curve graph are drawn based on the line loss analysis results.
103. And sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying.
According to the method provided by the embodiment of the application, firstly, data connection with the database server is established, and a storage program is called to perform data interaction with the database server. And then, obtaining a line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result. And finally, sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying. According to the method and the system for monitoring the line loss of the 10kV active power distribution network on line, the line files and the collected information data of the 10kV active power distribution network are acquired, analyzed and processed, the abnormal occurrence time and phase of the line loss of the 10kV power distribution network are displayed in a curve graph mode, the monitoring of the line loss of each phase line and each time period of the 10kV active power distribution network is realized, and the support is provided for the management of the line loss of the 10kV power distribution network.
The embodiment of the application provides a line loss monitoring method for an active power distribution network, as shown in fig. 2A, the method includes:
201. and establishing data connection with the database server, and calling the storage program to perform data interaction with the database server.
The method is applied to a line loss monitoring system of a 10kV active distribution network line of a power enterprise, and specifically, a monitoring system sequence can be a program script with a monitoring function, including a Web program, an SQL language script and the like. Considering that the data acquisition system can store the acquired data information, the file information and the like in the database, the method firstly establishes safe and reliable data connection with the database server, and performs subsequent line loss analysis work based on the file information and the acquired information stored in the database.
Furthermore, the monitoring system can execute the stored procedure in the database to perform data interaction with the database server by calling the program of the stored procedure, wherein the stored procedure refers to an SQL program and a cursor cycle which have functions of extracting and analyzing the split-phase line loss data when the platform is distinguished.
202. And obtaining a line loss analysis result of the 10kV active power distribution network line time-sharing split-phase line loss data, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result.
In the embodiment of the application, the monitoring system interacts with the database server through the storage program to complete analysis, processing and storage of the 10kV active power distribution network line time-sharing and phase-splitting line loss data, namely, a line loss analysis result of the 10kV active power distribution network line time-sharing and phase-splitting line loss data is obtained, and a line loss curve graph and an economic operation rate curve graph are drawn based on the line loss analysis result.
Firstly, the system acquires line archive information and line acquisition information of a 10kV distribution line, wherein the line archive information includes, but is not limited to, a power supply company to which the 10kV distribution line belongs, a station area number to which the distribution line belongs, a station area category, a line metering point use, an electric energy meter barcode, and a comprehensive multiplying power. The line collects information including, but not limited to, line metering point collection time, power indication, power factor, and voltage current data. The contents of the line profile information and the line acquisition information are not particularly limited.
And then, based on the acquisition time of the metering point, determining the time-sharing data of the electric energy meter through difference. Specifically, the metering point acquisition time stored in the line acquisition information is read, and differential operation is performed on the metering point acquisition time to obtain a plurality of time intervals. And aggregating a plurality of time intervals to obtain the time-sharing data of the electric energy meter.
Further, based on the time-sharing data of the electric energy meter, line loss analysis results of the time-sharing and phase-splitting line loss data of the 10kV active power distribution network line are determined by adopting line acquisition information. It should be noted that the line loss analysis result includes the time-sharing electric quantity of each metering point electric energy meter, the time-sharing phase-splitting line loss rate of the 10kV distribution network line and the time-sharing phase-splitting economic operation rate of the 10kV distribution network line.
The process of specifically obtaining the line loss analysis result is as follows:
firstly, acquiring the time-sharing electric quantity of the electric energy meter at each metering point
In the step, the system determines the time-sharing electric quantity of the electric energy meter through difference based on the electric energy indicating value of the metering point and the time-sharing data. For each time interval in the plurality of time intervals, in the line acquisition information, a first electric energy indicating value corresponding to the initial acquisition time in the time interval is extracted, and a second electric energy indicating value corresponding to the ending acquisition time in the time interval is extracted. And then, calculating the difference value of the second electric energy indicating value and the first electric energy indicating value, and taking the difference value as the total electric quantity of the electric energy meter in the current time interval. And then calculating the total electric quantity corresponding to each time interval in the multiple time intervals to obtain multiple total electric quantities, associating the multiple total electric quantities with the time-sharing data of the electric energy meter to obtain time-sharing electric quantities, wherein the process of specifically calculating the time-sharing electric quantities can be realized based on the following formula 1:
equation 1: w (Δ t) ═ f (t + Δ t) -f (t)
Wherein, Δ t is time-sharing data; w (delta t) is the electric quantity of the electric energy meter in delta t; f (t) is an electric energy indicating value of the electric energy meter at the t moment; f (t + delta t) is the electric energy indication value of the electric energy meter at the moment of t + delta t.
Secondly, acquiring the time-sharing and phase-splitting electric quantity of the electric energy meter at each metering point
In the step, the system firstly identifies the line acquisition information, determines at least one phase corresponding to the electric energy meter at the metering point, and judges whether the electric energy meter supports the split-phase electric quantity metering function.
If the electric energy meter supports the split-phase electric quantity metering function, the electric quantity value corresponding to each phase is read in the line acquisition information to obtain the split-phase electric quantity value, and the split-phase electric quantity value is associated with the time-sharing data of the electric energy meter to obtain the time-sharing split-phase electric quantity.
If the electric energy meter does not support the split-phase electric quantity metering function, the power ratio of each phase is obtained by dividing the power value of each phase of the electric energy meter by the total power value of the electric energy meter, and then the power ratio is multiplied by the total electric quantity to obtain the time-sharing split-phase electric quantity of the electric energy meter. Specifically, for each of the plurality of time intervals, total power data corresponding to the initial acquisition time in the time interval and initial power data corresponding to the initial acquisition time in each of the at least one phase are extracted from the line acquisition information. And then executing the following processing for each phase:
and acquiring total electric quantity corresponding to the time interval based on the time-sharing electric quantity of the electric energy meter, taking the ratio of the initial power data and the total power data corresponding to each time interval as a power proportion corresponding to each time interval, and multiplying the power proportion by the total electric quantity to obtain target electric quantity corresponding to each time interval.
And calculating at least one target electric quantity corresponding to at least one phase, and taking the at least one target electric quantity as the split-phase electric quantity of the time interval. Calculating the phase splitting electric quantity corresponding to each time interval in the multiple time intervals to obtain multiple phase splitting electric quantities, associating the multiple phase splitting electric quantities with the time-sharing data of the electric energy meter to obtain time-sharing phase splitting electric quantities, and taking a three-phase electric energy meter as an example, the process of specifically calculating the time-sharing phase splitting electric quantity of the three-phase electric energy meter can be realized based on the following formula 2:
equation 2:
wherein, Δ t is time-sharing data; w (Δ t) & gtAs A,B,C An active electric quantity matrix; w A (Δt)、W B (Δt)、W C (Δt)、W z (delta t) represents A, B, C-phase active electric quantity and total active electric quantity of the electric energy meter within delta t; p (t) leucogen A,B,C An active power matrix of the electric energy meter at the time t; p A (t)、P B (t)、P C And (t) and P (t) are A, B, C phases of active power and total active power of the electric energy meter at the time t respectively.
For example, during the period from 01:00 to 02:00, the power of A, B, C phases is 20, 22, 18 ten thousand kilowatts, the total power is 60 ten thousand kilowatts, and the total power is 57 ten thousand kilowatts hours, then the split-phase power of A, B, C phases during the period is 19.0, 20.9, 17.1 ten thousand kilowatts hours.
Thirdly, obtaining the time-sharing and phase-splitting line loss rate of the 10kV distribution network line
In the embodiment of the application, the system analyzes the difference between the time-sharing and phase-splitting electricity supply and electricity sale data based on the time-sharing and phase-splitting electricity quantity, can obtain the time-sharing and phase-splitting line loss data of the 10kV distribution network line, and specifically determines the process of the time-sharing and phase-splitting line loss data of the 10kV distribution network line as follows:
firstly, time-sharing and phase-splitting electric quantity corresponding to the circuit archive information is determined based on the circuit acquisition data and the electric energy meter time-sharing data, a plurality of input electric quantities are extracted from the time-sharing and phase-splitting electric quantity to serve as power supply quantity, and a plurality of output electric quantities are extracted to serve as power selling quantity. It should be noted that the power supply quantity includes a forward power quantity of a gateway meter of a 10kV distribution network line, a power quantity of a photovoltaic user on the internet, and a reverse power quantity of a private-public transformer area. The power selling quantity comprises reverse power quantity of a gateway meter of a 10kV distribution network line, office power consumption and forward power quantity of a private and public transformer area.
Further, according to the line acquisition data, at least one phase corresponding to the electric energy meter at the metering point is determined, and the following processing is executed for each phase:
the method comprises the steps of determining a plurality of time-sharing electric quantities corresponding to a plurality of input electric quantities in the power supply quantity, calculating a first sum of the plurality of time-sharing electric quantities, and determining a plurality of time-sharing electric quantities corresponding to a plurality of output electric quantities in the power selling quantity. And calculating a second sum of the plurality of time-sharing electric quantities, and calculating a difference value between the first sum and the second sum to obtain the line time-sharing line loss corresponding to the current phase. And calculating the ratio of the line time-sharing line loss to the first sum, and taking the ratio as the 10kV distribution network line time-sharing line loss rate. And then, calculating the time-sharing line loss rate of each 10kV distribution network line corresponding to each phase to obtain at least one time-sharing line loss rate of the 10kV distribution network line. Aggregating the time-sharing line loss rate of at least one 10kV distribution network line to obtain the time-sharing phase-splitting line loss rate of the 10kV distribution network line, wherein the process of specifically calculating the time-sharing phase-splitting line loss rate of the 10kV distribution network line can be realized based on the following formula 3:
W g (Δt)| A,B,C ＝[W Ag (Δt) W Bg (Δt) W Cg (Δt)]
＝W gk (Δt)| A,B,C +W gf (Δt)| A,B,C +W gt (Δt)| A,B,C
W s (Δt)| A,B,C ＝[W As (Δt) W Bs (Δt) W Cs (Δt)]
＝W sk (Δt)| A,B,C +W sf (Δt)| A,B,C +W st (Δt)| A,B,C
equation 3: Δ W (Δ t) & gtnon & lt A,B,C ＝[ΔW A (Δt) ΔW B (Δt) ΔW C (Δt)]
＝W g (Δt)| A,B,C -W s (Δt)| A,B,C
Wherein, Δ t is time-sharing data; w g (Δt)| A,B,C A power supply quantity matrix; w Ag (Δt)、W Bg (Δt)、W Cg (delta t) is the A, B, C phase power supply quantity of the 10kV line in delta t respectively; w gk (Δt)| A,B,C 、W gf (Δt)| A,B,C 、W gt (Δt)| A,B,C The forward electric quantity of a line gateway meter, the photovoltaic user internet electric quantity and the special public transformer area reverse electric quantity of the 10kV line in delta t are respectively; w s (Δt)| A,B,C Is a sold electricity quantity matrix; w As (Δt)、W Bs (Δt)、W Cs (delta t) is A, B, C phase power selling amount of the 10kV line in delta t respectively; w sk (Δt)| A,B,C 、W sf (Δt)| A,B,C 、W st (Δt)| A,B,C The reverse electric quantity of a line gateway meter, the office electric quantity and the forward electric quantity of a private public transformer area of the 10kV line within delta t are respectively set; Δ W (Δ t) & gtnon & lt A,B,C Is a loss electric quantity matrix; Δ W A (Δt)、ΔW B (Δt)、ΔW C (delta t) is A, B, C phase loss electric quantity of the 10kV line within delta t respectively; r (Δ t) & gtnon A,B,C Is a line loss rate matrix; r is a radical of hydrogen A (Δt)、r B (Δt)、r C (Δ t) is the A, B, C phase line loss rate of the 10kV line within Δ t.
For example, in the period from 01:00 to 02:00, the power supply amount of A, B, C phases is 100, 98 and 102 ten thousand kilowatts, the power selling amount is 98, 95 and 99 ten thousand kilowatts, and then the power loss rate of A, B, C phase lines in the period is 2, 3 and 3 ten thousand kilowatts, and the line loss rate is 2.00%, 3.06% and 2.94%.
Fourthly, obtaining the time-sharing and phase-splitting economic operation rate of the 10kV distribution network line
In the step, the system calculates the time-sharing and phase-splitting economic operation rate of each phase, so that the time-sharing and phase-splitting economic operation rate of the whole 10kV distribution network line is obtained. Specifically, a preset time-sharing split-phase line loss rate and the total line number of 10kv power distribution network lines are extracted from the line profile information, and at least one phase corresponding to the metering point electric energy meter is determined according to line acquisition data. And for each phase in the at least one phase, calculating the time-sharing line loss rate of the 10kV distribution network line corresponding to the phase, and comparing the time-sharing line loss rate of the 10kV distribution network line with the preset time-sharing phase-splitting line loss rate to obtain a comparison result.
Furthermore, the statistical comparison result indicates that the time-sharing line loss rate of the 10kV distribution network lines is smaller than the line number of the preset time-sharing split-phase line loss rate, and the percentage of the line number occupying the total line number is calculated to obtain the different time-sharing economic operation rate. And calculating the time-sharing economic operation rate corresponding to each phase in the at least one phase to obtain at least one time-sharing economic operation rate. And finally, aggregating at least one time-sharing economic operation rate to obtain a 10kV distribution network line time-sharing phase-splitting economic operation rate, wherein the process of specifically determining the 10kV distribution network line time-sharing phase-splitting economic operation rate can be realized based on the following formula 4:
equation 4:
wherein, Δ t is time-sharing data; λ (Δ t) is an economic operation rate matrix; lambda [ alpha ] A (Δt)、λ B (Δt)、λ C (delta t) is the A, B, C-phase economic operation rate of the 10kV line within delta t; c (Δ t) underfloor A,B,C The loss rate of A, B, C phase lines of the 10kV line in delta t is less than the quantity of the phase lines of a preset value; c is the number of 10kV buses.
For example, in the period from 01:00 to 02:00, the power supply amount of A, B, C phase of 1 10kV line is 100, 98, 102 ten thousand kilowatt hour, the power selling amount is 98, 95, 99 ten thousand kilowatt hour, then the power loss amount of A, B, C phase line in the period is 2, 3 ten thousand kilowatt hour, the line number is 1, and the line loss rate is 2.00%, 3.06%, 2.94%. Assuming that the preset line loss rate is 2.50%, the phase A is in economic operation, the economic operation rate is 33.33%, and the economic operation rate of the phase B, C is 0.
And finally, drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result.
Through the steps, 10kV active power distribution network line archives and acquired information data are acquired, analyzed and processed, abnormal occurrence time and phase of line loss of the 10kV power distribution network line are displayed in a curve graph mode, and support is provided for line loss treatment of the 10kV power distribution network line.
203. And sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying.
In the embodiment of the application, the system sends the line loss curve graph and the economic operation rate curve graph to the display terminal, and it needs to be explained that the display terminal can be an intelligent device such as a computer, a mobile phone and a tablet, and the display terminal is not specifically limited by the application. Finally, a 10kV distribution network line time-sharing phase-splitting line loss curve graph and an economic operation rate curve graph are displayed in a centralized mode through a display terminal, and fine monitoring of 10kV active distribution network line time-sharing phase-splitting line loss is achieved. For example, the phase loss and economic operating rate curves of the system over the 24 hour period exhibited by the display terminal are shown in fig. 2C-2F. In the drawing, in A, B, C, the phase B has the highest loss rate and the highest loss capacity. The loss rate of the phase B line is 4.30 percent when the maximum value is 5 and 1.73 percent when the minimum value is 9. The economic operation rate of the B phase is minimum 4 times, so that the line loss mainly occurs in the B phase.
In summary, as shown in fig. 2B, the monitoring system is first started, so that the monitoring system establishes a data connection with the database server. And after the line loss analysis system is successfully connected to a database server, performing data interaction with the database, and analyzing line loss data and economic operation rate of the line in a time-sharing and phase-splitting manner to obtain a line loss analysis result. And finally, drawing a line loss curve graph of the line in a time-sharing and phase-splitting manner and an economic operation rate curve graph, and sending the line loss analysis result, the line loss curve graph of the time-sharing and phase-splitting manner and the economic operation rate curve graph to a display terminal for displaying.
According to the method provided by the embodiment of the application, firstly, data connection with the database server is established, and a storage program is called to perform data interaction with the database server. And then, obtaining a line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result. And finally, sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying. According to the 10kV active power distribution network line loss online monitoring method and system, 10kV active power distribution network line archives and acquired information data are acquired, analyzed and processed, abnormal occurrence time and phase difference of the 10kV power distribution network line loss are displayed in a curve graph mode, monitoring of the line loss of each time period and each phase line of the 10kV active power distribution network line is achieved, and support is provided for management of the line loss of the 10kV power distribution network line.
Further, as a specific implementation of the method shown in fig. 1, an embodiment of the present application provides an active power distribution network line loss monitoring device, as shown in fig. 3, where the device includes: a connection module 301, an acquisition module 302, and a display module 303.
The connection module 301 is configured to establish data connection with a database server, and call a storage program to perform data interaction with the database server;
the obtaining module 302 is configured to obtain a line loss analysis result of time-sharing phase-splitting line loss data of a 10kV active power distribution network line, and draw a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result;
the display module 303 is configured to send the line loss graph and the economic operation rate graph to a display terminal for displaying.
In a specific application scenario, the obtaining module 302 is configured to obtain line profile information and line acquisition information of a 10kv power distribution line; reading the metering point acquisition time stored in the line acquisition information, and carrying out differential operation on the metering point acquisition time to obtain a plurality of time intervals; aggregating the plurality of time intervals to obtain the time-sharing data of the electric energy meter; based on the electric energy meter time-sharing data, line loss analysis results of the 10kV active power distribution network line time-sharing and phase-splitting line loss data are determined by adopting the line acquisition information, and the line loss analysis results comprise time-sharing electric quantity of each metering point electric energy meter, time-sharing and phase-splitting electric quantity of each metering point electric energy meter, 10kV distribution network line time-sharing and phase-splitting line loss rate and 10kV distribution network line time-sharing and phase-splitting economic operation rate.
In a specific application scenario, the obtaining module 302 is configured to, for each time interval of the multiple time intervals, extract, from the line acquisition information, a first electric energy indication value corresponding to an initial acquisition time in the time interval, and a second electric energy indication value corresponding to a termination acquisition time; calculating a difference value between the second electric energy indicating value and the first electric energy indicating value, and taking the difference value as the total electric quantity of the electric energy meter in the current time interval; calculating the total electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of total electric quantities; and associating the plurality of total electric quantities with the time-sharing data of the electric energy meter to obtain the time-sharing electric quantity.
In a specific application scenario, the obtaining module 302 is configured to identify the line acquisition information, determine at least one phase corresponding to the metering point electric energy meter, and determine whether the electric energy meter supports a split-phase electric energy metering function; and if the electric energy meter supports the split-phase metering electric quantity function, reading the electric quantity value corresponding to each phase in the line acquisition information to obtain a split-phase electric quantity value, and associating the split-phase electric quantity value with the time-sharing data of the electric energy meter to obtain the time-sharing split-phase electric quantity.
In a specific application scenario, the obtaining module 302 is further configured to, if the electric energy meter does not support the split-phase metering electric quantity function, extract, for each time interval in the multiple time intervals, total power data corresponding to initial acquisition time in the time interval, initial power data corresponding to the initial acquisition time of each phase in the at least one phase in the line acquisition information, and execute the following processing for each phase: acquiring total electric quantity corresponding to the time interval based on the time-sharing electric quantity of the electric energy meter, taking the ratio of the initial power data corresponding to the phase difference to the total power data as a power proportion corresponding to the phase difference, and multiplying the power proportion by the total electric quantity to obtain target electric quantity corresponding to the phase difference; calculating at least one target electric quantity corresponding to at least one phase, and taking the at least one target electric quantity as the split-phase electric quantity of the time interval; calculating the phase splitting electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of phase splitting electric quantities; and associating the plurality of phase-splitting electric quantities with the electric energy meter time-sharing data to obtain the time-sharing phase-splitting electric quantity.
In a specific application scenario, the obtaining module 302 is configured to determine, based on the line acquisition data and the electric energy meter time-sharing data, a time-sharing and phase-splitting electric quantity corresponding to the line profile information, extract a plurality of input electric quantities from the time-sharing and phase-splitting electric quantities as a power supply quantity, and extract a plurality of output electric quantities as a power selling quantity; according to the line acquisition data, at least one phase corresponding to the metering point electric energy meter is determined, and the following processing is executed on each phase: determining a plurality of time-sharing electric quantities corresponding to the plurality of input electric quantities in the power supply quantity, calculating a first sum of the plurality of time-sharing electric quantities, determining a plurality of time-sharing electric quantities corresponding to the plurality of output electric quantities in the power selling quantity, calculating a second sum of the plurality of time-sharing electric quantities, calculating a difference value between the first sum and the second sum to obtain line time-sharing line losses corresponding to the current phases, calculating a ratio of the line time-sharing line losses to the first sum, and taking the ratio as a 10kV distribution network line time-sharing line loss rate; calculating the time-sharing line loss rate of each 10kV distribution network line corresponding to each phase to obtain at least one time-sharing line loss rate of the 10kV distribution network line; and aggregating the time-sharing line loss rate of the at least one 10kV distribution network line to obtain the time-sharing phase-splitting line loss rate of the 10kV distribution network line.
In a specific application scenario, the obtaining module 302 is configured to extract a preset time-sharing split-phase line loss rate and a total line number of 10kv power distribution network lines from the line profile information, and determine at least one phase corresponding to the metering point electric energy meter according to the line acquisition data; for each phase in the at least one phase, calculating a time-sharing line loss rate of the 10kV distribution network line corresponding to the phase, and comparing the time-sharing line loss rate of the 10kV distribution network line with the preset time-sharing phase-splitting line loss rate to obtain a comparison result; counting the number of lines of which the comparison result indicates that the time-sharing line loss rate of the 10kV distribution network line is smaller than the preset time-sharing phase-splitting line loss rate, and calculating the percentage of the number of the lines occupying the total number of the lines to obtain the different time-sharing economic operation rates; calculating the time-sharing economic operation rate corresponding to each phase in the at least one phase to obtain at least one time-sharing economic operation rate; and aggregating the at least one time-sharing economic operation rate to obtain the time-sharing and phase-splitting economic operation rate of the 10kV distribution network line.
According to the device provided by the embodiment of the application, firstly, data connection with the database server is established, and the storage program is called to perform data interaction with the database server. And then, obtaining a line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result. And finally, sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying. According to the method and the system for monitoring the line loss of the 10kV active power distribution network on line, the line files and the collected information data of the 10kV active power distribution network are acquired, analyzed and processed, the abnormal occurrence time and phase of the line loss of the 10kV power distribution network are displayed in a curve graph mode, the monitoring of the line loss of each phase line and each time period of the 10kV active power distribution network is realized, and the support is provided for the management of the line loss of the 10kV power distribution network.
It should be noted that other corresponding descriptions of the functional units related to the active power distribution network line loss monitoring device provided in the embodiment of the present application may refer to the corresponding descriptions in fig. 1 and fig. 2A to fig. 2B, and are not described herein again.
In an exemplary embodiment, referring to fig. 4, there is further provided a device including a communication bus, a processor, a memory, and a communication interface, and further including an input/output interface and a display device, wherein the functional units may communicate with each other through the bus. The memory stores computer programs, and the processor is used for executing the programs stored in the memory and executing the line loss monitoring method of the active power distribution network in the embodiment.
A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for monitoring and monitoring line loss of an active power distribution network.
Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by hardware, and can also be implemented by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, or the like), and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, or the like) to execute the method described in the implementation scenarios of the present application.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present application.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above application serial numbers are for description purposes only and do not represent the superiority or inferiority of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be considered by those skilled in the art are intended to fall within the scope of the present application.
Claims (10)
1. A line loss monitoring method for an active power distribution network is characterized by comprising the following steps:
establishing data connection with a database server, and calling a storage program to perform data interaction with the database server;
obtaining a line loss analysis result of time-sharing phase-splitting line loss data of a 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result;
and sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying.
2. The method according to claim 1, wherein the obtaining of the line loss analysis result of the time-sharing and phase-splitting line loss data of the 10kV active power distribution network line comprises:
obtaining line archive information and line acquisition information of a 10kv distribution line;
reading the metering point acquisition time stored in the line acquisition information, and carrying out differential operation on the metering point acquisition time to obtain a plurality of time intervals;
aggregating the plurality of time intervals to obtain the time-sharing data of the electric energy meter;
based on the electric energy meter time-sharing data, line loss analysis results of the 10kV active power distribution network line time-sharing and phase-splitting line loss data are determined by adopting the line acquisition information, and the line loss analysis results comprise time-sharing electric quantity of each metering point electric energy meter, time-sharing and phase-splitting electric quantity of each metering point electric energy meter, 10kV distribution network line time-sharing and phase-splitting line loss rate and 10kV distribution network line time-sharing and phase-splitting economic operation rate.
3. The method of claim 2, wherein determining the time-shared charge of each metering point electric energy meter comprises:
for each time interval in the plurality of time intervals, extracting a first electric energy indicating value corresponding to the initial acquisition time and a second electric energy indicating value corresponding to the termination acquisition time in the time interval from the line acquisition information;
calculating a difference value between the second electric energy indicating value and the first electric energy indicating value, and taking the difference value as the total electric quantity of the electric energy meter in the current time interval;
calculating the total electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of total electric quantities;
and associating the plurality of total electric quantities with the electric energy meter time-sharing data to obtain the time-sharing electric quantity.
4. The method of claim 2, wherein determining the time-share phase-separated electric quantity of the electric energy meter at each metering point comprises:
identifying the line acquisition information, determining at least one phase corresponding to the metering point electric energy meter, and judging whether the electric energy meter supports a split-phase electric quantity metering function;
if the electric energy meter supports the split-phase electric quantity metering function, reading electric quantity values corresponding to each phase in the line acquisition information to obtain split-phase electric quantity values, and associating the split-phase electric quantity values with the time-sharing data of the electric energy meter to obtain the time-sharing split-phase electric quantity.
5. The method of claim 4, wherein after determining whether the electric energy meter supports the split-phase metering charge function, the method further comprises:
if the electric energy meter does not support the split-phase electric quantity metering function, for each time interval in the multiple time intervals, extracting total power data corresponding to initial acquisition time in the time interval, initial power data corresponding to the initial acquisition time of each phase in the at least one phase, and executing the following processing for each phase: acquiring total electric quantity corresponding to the time interval based on the time-sharing electric quantity of the electric energy meter, taking the ratio of the initial power data corresponding to the phase difference to the total power data as the power proportion corresponding to the phase difference, and multiplying the power proportion by the total electric quantity to obtain target electric quantity corresponding to the phase difference;
calculating at least one target electric quantity corresponding to at least one phase, and taking the at least one target electric quantity as the split-phase electric quantity of the time interval;
calculating the phase splitting electric quantity corresponding to each time interval in the plurality of time intervals to obtain a plurality of phase splitting electric quantities;
and associating the plurality of phase separation electric quantities with the electric energy meter time-sharing data to obtain the time-sharing phase separation electric quantity.
6. The method of claim 2, wherein the determining the time-sharing and phase-splitting line loss rate of the 10kV distribution network line comprises:
determining time-sharing and phase-splitting electric quantity corresponding to the circuit archive information based on the circuit acquisition data and the electric energy meter time-sharing data, extracting a plurality of input electric quantities from the time-sharing and phase-splitting electric quantity to serve as power supply quantity, and extracting a plurality of output electric quantities to serve as power selling quantity;
according to the line acquisition data, at least one phase corresponding to the metering point electric energy meter is determined, and the following processing is executed for each phase: determining a plurality of time-sharing electric quantities corresponding to the plurality of input electric quantities in the power supply quantity, calculating a first sum of the plurality of time-sharing electric quantities, determining a plurality of time-sharing electric quantities corresponding to the plurality of output electric quantities in the power selling quantity, calculating a second sum of the plurality of time-sharing electric quantities, calculating a difference value between the first sum and the second sum to obtain line time-sharing line losses corresponding to the current phases, calculating a ratio of the line time-sharing line losses to the first sum, and taking the ratio as a 10kV distribution network line time-sharing line loss rate;
calculating the time-sharing line loss rate of each 10kV distribution network line corresponding to each phase to obtain at least one time-sharing line loss rate of the 10kV distribution network line;
and aggregating the time-sharing line loss rate of the at least one 10kV distribution network line to obtain the time-sharing phase-splitting line loss rate of the 10kV distribution network line.
7. The method according to claim 2, wherein the determining the time-sharing and phase-splitting economic operation rate of the 10kV distribution network line comprises the following steps:
extracting a preset time-sharing split-phase line loss rate and the total line number of 10kv power distribution network lines from the line archive information, and determining at least one phase corresponding to the metering point electric energy meter according to the line acquisition data;
for each phase in the at least one phase, calculating a 10kV distribution network line time-sharing line loss rate corresponding to the phase, and comparing the 10kV distribution network line time-sharing line loss rate with the preset time-sharing phase-sharing line loss rate to obtain a comparison result;
counting the number of lines of which the comparison result indicates that the time-sharing line loss rate of the 10kV distribution network line is smaller than the preset time-sharing phase-splitting line loss rate, and calculating the percentage of the number of the lines occupying the total number of the lines to obtain the different time-sharing economic operation rates;
calculating the time-sharing economic operation rate corresponding to each phase in the at least one phase to obtain at least one time-sharing economic operation rate;
and aggregating the at least one time-sharing economic operation rate to obtain the time-sharing and phase-splitting economic operation rate of the 10kV distribution network line.
8. The utility model provides an active distribution network line loss monitoring device which characterized in that includes:
the connection module is used for establishing data connection with the database server and calling a storage program to perform data interaction with the database server;
the acquisition module is used for acquiring a line loss analysis result of the time-sharing phase-splitting line loss data of the 10kV active power distribution network line, and drawing a line loss curve graph and an economic operation rate curve graph based on the line loss analysis result;
and the display module is used for sending the line loss curve graph and the economic operation rate curve graph to a display terminal for displaying.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714234A (en) * | 2009-10-23 | 2010-05-26 | 西北电网有限公司 | Grid line loss monitoring and analyzing system |
| CN101958544A (en) * | 2010-08-11 | 2011-01-26 | 金华电业局 | System and method for calculating line loss rate of electric power distribution line |
| CN107024641A (en) * | 2017-03-29 | 2017-08-08 | 国网上海市电力公司 | A kind of platform area line loss per unit exception monitoring system |
| CN111524025A (en) * | 2019-12-06 | 2020-08-11 | 国网天津静海供电有限公司 | Electricity stealing check and treatment method based on time-sharing electricity quantity calculation |
| US20200366092A1 (en) * | 2019-05-15 | 2020-11-19 | University Of Electronic Science And Technology Of China | Method for analyzing correlation between different line loss actions |
| CN112688428A (en) * | 2020-12-21 | 2021-04-20 | 国网山东省电力公司枣庄供电公司 | 10kV power grid synchronous line loss treatment method based on Internet of things technology |
| CN113159339A (en) * | 2021-04-20 | 2021-07-23 | 国网江西省电力有限公司信息通信分公司 | One-region one-index line loss management method and system based on big data |
| CN113554286A (en) * | 2021-07-06 | 2021-10-26 | 安徽明生恒卓科技有限公司 | 10kV line loss fine calculation analysis method |
-
2022
- 2022-05-16 CN CN202210529118.8A patent/CN115037039B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714234A (en) * | 2009-10-23 | 2010-05-26 | 西北电网有限公司 | Grid line loss monitoring and analyzing system |
| CN101958544A (en) * | 2010-08-11 | 2011-01-26 | 金华电业局 | System and method for calculating line loss rate of electric power distribution line |
| CN107024641A (en) * | 2017-03-29 | 2017-08-08 | 国网上海市电力公司 | A kind of platform area line loss per unit exception monitoring system |
| US20200366092A1 (en) * | 2019-05-15 | 2020-11-19 | University Of Electronic Science And Technology Of China | Method for analyzing correlation between different line loss actions |
| CN111524025A (en) * | 2019-12-06 | 2020-08-11 | 国网天津静海供电有限公司 | Electricity stealing check and treatment method based on time-sharing electricity quantity calculation |
| CN112688428A (en) * | 2020-12-21 | 2021-04-20 | 国网山东省电力公司枣庄供电公司 | 10kV power grid synchronous line loss treatment method based on Internet of things technology |
| CN113159339A (en) * | 2021-04-20 | 2021-07-23 | 国网江西省电力有限公司信息通信分公司 | One-region one-index line loss management method and system based on big data |
| CN113554286A (en) * | 2021-07-06 | 2021-10-26 | 安徽明生恒卓科技有限公司 | 10kV line loss fine calculation analysis method |
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