CN114624530A - Method, device, equipment and medium for determining real-time load rate of transformer - Google Patents
Method, device, equipment and medium for determining real-time load rate of transformer Download PDFInfo
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Abstract
The application relates to a method and a device for determining the real-time load rate of a transformer, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer; determining a calculation method of the real-time load rate of the transformer according to the definition of the real-time load rate of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer; determining the average load rate of the transformer per hour according to a calculation method of the real-time load rate of the transformer; determining the average load rate of the transformer per day according to the average load rate of the transformer per hour; determining the monthly average load rate of the transformer according to the daily average load rate of the transformer; and determining the average load rate of the transformer per year according to the average load rate of the transformer per month. According to the method and the device, the accuracy of calculating the load rate of the transformer is improved according to the measured value non-theoretical value.
Description
Technical Field
The application relates to the technical field of transformers, in particular to a method, a device, equipment and a medium for determining the real-time load rate of a transformer.
Background
If a building which is used for years is modified and decorated, the condition that the existing low-voltage power distribution system connection capacity cannot meet the use requirement after modification is usually met, so that the power distribution system of the building needs to be modified and designed. The actual operation energy efficiency of the building electrical system needs to be known in the improvement design, and the evaluation basis of the operation energy efficiency is the actual load factor of the transformer. The service life of the transformer is generally 20 years according to the 'Power Transformer selection guide' of the mechanical industry Standard GB/T17468-1998 of the transformer. The actual load factor of the original transformer becomes particularly critical if the transformer is in good condition during use and the actual load factor of the transformer is sufficiently redundant, preferably by taking the old into account. However, even in a building equipped with energy management system software, due to functional limitations of the software, actual load rate data of the transformer cannot be provided, so the design scheme of the modification project is usually determined according to a load calculation theoretical value of a "need coefficient method", and the difference between the theoretical value and the actual operation value is large, which often results in unnecessary transformer replacement.
The energy management system is deployed by adopting a three-layer structure, namely an application management layer, a communication network layer and an equipment layer. The application management layer comprises: data servers, workstation computers, etc. The communication network layer comprises: communication management machine, network switch and data acquisition unit etc.. The device layer includes: electric power meters, water meters, and the like. The communication between the communication manager and the energy consumption metering device adopts a Modbus communication protocol, and the system uses a B/S software architecture. The energy-saving management method is characterized in that consumption data of electricity, water and the like of a building are collected, various energy consumption indexes of the building are analyzed, energy consumption leaks are found in time, and various energy efficiency statistical reports are provided, so that energy-saving management is facilitated. The energy management system analyzes the power consumption and energy consumption, mainly analyzes and counts the load according to the load type (power consumption, illumination consumption and the like) and the space partition (building, floor and the like), and focuses on the overall energy consumption ratio of the load type and the space partition. There is no statistics and analysis of real-time load rate data with the transformer as a dimension.
Disclosure of Invention
Based on the above problems, the present application provides a method, an apparatus, a device, and a medium for determining a real-time load factor of a transformer.
In a first aspect, an embodiment of the present application provides a method for determining a real-time load factor of a transformer, including:
acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer;
determining a calculation method of the real-time load rate of the transformer according to the definition of the real-time load rate of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer;
determining the average load rate of the transformer per hour according to a calculation method of the real-time load rate of the transformer;
determining the daily average load rate of the transformer according to the hourly average load rate of the transformer;
determining the monthly average load rate of the transformer according to the daily average load rate of the transformer;
determining the average load rate of the transformer per year according to the average load rate of the transformer per month;
the calculation method of the real-time load rate of the transformer is equal to the ratio of the real-time total current of the low-voltage side of the transformer to the rated current of the low-voltage side of the transformer.
Further, the method for determining the real-time load factor of the transformer further includes: and displaying the change trend information of the average load rate of the transformer per hour, the average load rate of the transformer per day, the average load rate of the transformer per month and the average load rate of the transformer per year.
Further, in the method for determining the real-time load rate of the transformer, the method for determining the average load rate of the transformer per hour according to the method for calculating the real-time load rate of the transformer includes:
determining the real-time total current of the low-voltage side of the transformer per hour;
and obtaining the average load rate of the transformer per hour according to the real-time total current of the low-voltage side of the transformer per hour and the rated current of the low-voltage side of the transformer.
Further, in the method for determining the real-time load rate of the transformer, the step of determining the average load rate of the transformer per day according to the average load rate of the transformer per hour includes:
and averaging the average load rate of the transformer per hour in one day to obtain the average load rate of the transformer per day.
Further, in the method for determining the real-time load rate of the transformer, the step of determining the monthly average load rate of the transformer according to the daily average load rate of the transformer includes:
and averaging the average load rate of the transformer every day in one month to obtain the average load rate of the transformer every month.
Further, in the method for determining the real-time load rate of the transformer, the step of determining the average load rate of the transformer per year according to the average load rate of the transformer per month includes:
and averaging the average load rate of the transformer every month in one year to obtain the average load rate of the transformer every year.
Further, in the method for determining the real-time load factor of the transformer, determining the real-time total current of the low-voltage side of the transformer per hour includes:
acquiring a three-phase current value of a low-voltage side of the transformer;
calculating the average value of the three-phase current value according to the three-phase current value of the low-voltage side;
dividing each hour into N parts, and respectively determining the maximum value of the average value of each three-phase current value in the N parts;
and averaging the maximum value of the average value of each three-phase current value in the N parts to obtain the low-voltage side real-time total current of the transformer per hour.
In a second aspect, an embodiment of the present application further provides a device for determining a real-time load factor of a transformer, including:
an acquisition module: the system comprises a voltage acquisition module, a voltage acquisition module and a current acquisition module, wherein the voltage acquisition module is used for acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer;
a first determination module: the calculating method is used for determining the real-time load rate of the transformer according to the real-time load rate definition of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer;
a second determination module: the method is used for determining the average load rate of the transformer per hour according to the calculation method of the real-time load rate of the transformer;
a third determination module: the method comprises the steps of determining the daily average load rate of the transformer according to the hourly average load rate of the transformer;
a fourth determination module: the load control device is used for determining the monthly average load rate of the transformer according to the daily average load rate of the transformer;
a fifth determination module: the load balancing method is used for determining the average load rate of the transformer per year according to the average load rate of the transformer per month;
and the calculation method of the real-time load rate of the transformer is equal to the ratio of the real-time total current of the low-voltage side of the transformer to the rated current of the low-voltage side of the transformer.
In a third aspect, an embodiment of the present application further provides an electronic device, including: a processor and a memory;
the processor is used for executing any one of the above methods for determining the real-time load rate of the transformer by calling the program or the instructions stored in the memory.
In a fourth aspect, embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium stores a program or instructions, and the program or instructions cause a computer to execute any one of the above methods for determining a real-time load factor of a transformer.
The embodiment of the application has the advantages that: the application relates to a method and a device for determining the real-time load rate of a transformer, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer; determining a calculation method of the real-time load rate of the transformer according to the definition of the real-time load rate of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer; determining the average load rate of the transformer per hour according to a calculation method of the real-time load rate of the transformer; determining the average load rate of the transformer per day according to the average load rate of the transformer per hour; determining the monthly average load rate of the transformer according to the daily average load rate of the transformer; and determining the average load rate of the transformer per year according to the average load rate of the transformer per month. According to the method and the device, the accuracy of calculating the load rate of the transformer is improved according to the measured value non-theoretical value.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a first schematic diagram illustrating a method for determining a real-time load factor of a transformer according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a method for determining a real-time load factor of a transformer according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a third method for determining a real-time load factor of a transformer according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a device for determining a real-time load factor of a transformer according to an embodiment of the present disclosure;
fig. 5 is a schematic block diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than that described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore should not be limited to the specific embodiments disclosed below.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a first schematic diagram illustrating a method for determining a real-time load factor of a transformer according to an embodiment of the present disclosure.
In a first aspect, an embodiment of the present application provides a method for determining a real-time load factor of a transformer, which, with reference to fig. 1, includes six steps S101 to S106:
s101: and acquiring the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer.
S102: and determining the real-time load rate of the transformer according to the real-time load rate definition of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer.
Specifically, in the embodiment of the present application, the real-time load factor of the transformer is defined as: at a certain moment, the ratio of the real-time apparent power S output by the transformer to the rated capacity SN of the transformer is S/SN; the real-time apparent power of the transformer is calculated by a formula of S/SN (1.732U I)/(1.732 UN IN) I/IN, namely the real-time load rate of a certain transformer is the ratio of the low-voltage side real-time total current of the transformer to the rated current of the transformer, namely the calculation method for determining the real-time load rate of the transformer through the steps is equal to the ratio of the low-voltage side real-time total current of the transformer to the rated current of the low-voltage side of the transformer.
S103: and determining the average load rate of the transformer per hour according to the calculation method of the real-time load rate of the transformer.
S104: and determining the average daily load rate of the transformer according to the average hourly load rate of the transformer.
S105: and determining the monthly average load rate of the transformer according to the daily average load rate of the transformer.
S106: and determining the average load rate of the transformer per year according to the average load rate of the transformer per month.
Specifically, in the embodiment of the present application, after the calculation method of the real-time load rate of the transformer is determined, the average load rate of the transformer per hour is determined, the average load rate of the transformer per day is determined, the average load rate of the transformer per month is determined, and the average load rate of the transformer per year is determined as described below.
Further, the method for determining the real-time load factor of the transformer further includes: and displaying the change trend information of the average load rate of the transformer per hour, the average load rate of the transformer per day, the average load rate of the transformer per month and the average load rate of the transformer per year.
Specifically, in the embodiment of the present application, after determining the average load rate of the transformer per hour, determining the average load rate of the transformer per day, determining the average load rate of the transformer per month, and determining the average load rate of the transformer per year, the average load rate of the transformer per hour, the average load rate of the transformer per day, the average load rate of the transformer per month, and the change trend information of the average load rate of the transformer per year are displayed, and the design side may perform reasonable planning and distribution on the load subjected to capacity improvement according to the actual load rate and the load rate time distribution curve of each transformer, and determine the optimal transformer attribution of each load.
Fig. 2 is a schematic diagram illustrating a method for determining a real-time load factor of a transformer according to an embodiment of the present disclosure.
Further, in the method for determining the real-time load rate of the transformer, the average load rate of the transformer per hour is determined according to a method for calculating the real-time load rate of the transformer, and with reference to fig. 2, the method includes two steps S201 and S202:
s201: and determining the real-time total current of the low-voltage side of the transformer per hour.
S202: and obtaining the average load rate of the transformer per hour according to the real-time total current of the low-voltage side of the transformer per hour and the rated current of the low-voltage side of the transformer.
Specifically, in the embodiment of the present application, the real-time total current of the low-voltage side can be obtained by acquiring the real-time three-phase current values, i.e., IA, IB, and IC, of the power meter of the low-voltage side wiring cabinet and averaging the real-time three-phase current values, and the average load rate of the transformer per hour is calculated according to the ratio of the real-time total current of the low-voltage side of the transformer to the rated current of the low-voltage side of the transformer, which is equal to the calculation method of the real-time load rate.
Further, in the method for determining the real-time load rate of the transformer, the step of determining the average load rate of the transformer per day according to the average load rate of the transformer per hour includes:
and averaging the average load rate of the transformer per hour in one day to obtain the average load rate of the transformer per day.
Specifically, in the embodiment of the present application, after the average daily load rate of the transformer is determined, the average daily load rate is averaged based on the average 24-hour load rate.
Further, in the method for determining the real-time load rate of the transformer, the step of determining the monthly average load rate of the transformer according to the daily average load rate of the transformer includes:
and averaging the average load rate of the transformer every day in one month to obtain the average load rate of the transformer every month.
Specifically, in the embodiment of the present application, the monthly average load rate of the transformer is averaged based on the daily average load rate of the transformer.
Further, in the method for determining the real-time load rate of the transformer, the step of determining the average load rate of the transformer per year according to the average load rate of the transformer per month includes:
and averaging the average load rate of the transformer every month in one year to obtain the average load rate of the transformer every year.
Specifically, in the embodiment of the present application, the annual average load rate of the transformer is averaged based on the monthly average load rate of the transformer.
Fig. 3 is a third schematic diagram illustrating a method for determining a real-time load factor of a transformer according to an embodiment of the present application.
Further, in the method for determining the real-time load factor of the transformer, the step of determining the real-time total current of the low-voltage side of the transformer per hour, which is combined with fig. 3, includes four steps S301 to S304:
s301: and acquiring the three-phase current value of the low-voltage side of the transformer.
S302: the average value of the three-phase current values is calculated from the three-phase current values on the low-voltage side.
S303: the current value per hour was divided into N parts, and the maximum value of the average value of the current values of each three phase in the N parts was determined, respectively.
S304: and averaging the maximum value of the average value of each three-phase current value in the N parts to obtain the low-voltage side real-time total current of the transformer per hour.
Specifically, in the embodiment of the application, the data acquisition unit acquires the data of the low-voltage side wiring cabinet electric power instrument in real time and sends the data to the data server; after receiving the low-voltage side current values IA, IB and IC, the data server calculates the average value of the low-voltage side current values IA, IB and IC to be an It, and then stores the It in a database; starting a timing calculation task, dividing one hour into N parts, such as 4 parts, and calculating the maximum value of all It in every 15 minutes, wherein the maximum value is calculated as Im; and averaging 4 Im in one hour to obtain the average total current of the low-voltage side of the transformer in one hour.
Fig. 4 is a schematic diagram of a device for determining a real-time load factor of a transformer according to an embodiment of the present application.
In a second aspect, an embodiment of the present application further provides a device for determining a real-time load factor of a transformer, including:
the acquisition module 401: the system comprises a voltage acquisition unit, a current acquisition unit and a control unit, wherein the voltage acquisition unit is used for acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer;
the first determination module 402: the calculating method is used for determining the real-time load rate of the transformer according to the real-time load rate definition of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer.
Specifically, in the embodiment of the present application, the real-time load factor of the transformer is defined as: at a certain moment, the ratio of the real-time apparent power S output by the transformer to the rated capacity SN of the transformer is S/SN; the calculation formula of the real-time apparent power of the transformer is as follows: S1.732U (transformer low side real time voltage) I (low side real time total current; the rated capacity of the transformer is calculated by an equation of SN 1.732 UN (rated voltage on the low-voltage side of the transformer) IN (rated current on the low-voltage side of the transformer), since the deviation between the real-time voltage at the low-voltage side and the rated voltage is negligible relative to the load factor, the real-time load factor calculation formula of the transformer can be converted into: S/SN (1.732U I)/(1.732 UN IN) I/IN, namely, the real-time load factor of a certain transformer is the ratio of the real-time total current of the low-voltage side to the rated current of the transformer, namely, the calculation method for determining the real-time load factor of the transformer through the obtaining module 401 and the first determining module 402 is equal to the ratio of the real-time total current of the low-voltage side of the transformer to the rated current of the low-voltage side of the transformer.
The second determination module 403: the method is used for determining the average load rate of the transformer per hour according to the calculation method of the real-time load rate of the transformer;
the third determination module 404: the method is used for determining the daily average load rate of the transformer according to the hourly average load rate of the transformer;
the fourth determination module 405: the average load rate of the transformer per month is determined according to the average load rate of the transformer per day;
the fifth determination module 406: the method is used for determining the average load rate of the transformer per year according to the average load rate of the transformer per month.
Specifically, in the embodiment of the present invention, after determining the method for calculating the real-time load rate of the transformer, the second determining module 403 determines the average load rate of the transformer per hour, the third determining module 404 determines the average load rate of the transformer per day, the fourth determining module 405 determines the average load rate of the transformer per month, and the fifth determining module 406 determines the average load rate of the transformer per year, which has been described above.
In a third aspect, an embodiment of the present application further provides an electronic device, including: a processor and a memory;
the processor is used for executing any one of the above methods for determining the real-time load rate of the transformer by calling the program or the instructions stored in the memory.
In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a program or instructions, and the program or instructions cause a computer to execute any one of the above methods for determining a real-time load factor of a transformer.
Fig. 5 is a schematic block diagram of an electronic device provided by an embodiment of the present disclosure.
As shown in fig. 5, the electronic apparatus includes: at least one processor 501, at least one memory 502, and at least one communication interface 503. The various components in the electronic device are coupled together by a bus system 504. A communication interface 503 for information transmission with an external device. It is understood that the bus system 504 is used to enable communications among the components. The bus system 504 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, the various buses are labeled as bus system 504 in fig. 5.
It will be appreciated that the memory 502 in this embodiment can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.
In some embodiments, memory 502 stores elements, executable units or data structures, or a subset thereof, or an expanded set thereof as follows: an operating system and an application program.
The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs, including various application programs such as a Media Player (Media Player), a Browser (Browser), etc., are used to implement various application services. The program for implementing any method of the determination method of the real-time load factor of the transformer provided by the embodiment of the application may be included in the application program.
In this embodiment of the application, the processor 501 is configured to execute the steps of the embodiments of the method for determining the real-time load factor of the transformer provided by the embodiment of the application by calling a program or an instruction stored in the memory 502, which may be specifically a program or an instruction stored in an application program.
Acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer;
determining a calculation method of the real-time load rate of the transformer according to the definition of the real-time load rate of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer;
determining the average load rate of the transformer per hour according to a calculation method of the real-time load rate of the transformer;
determining the average load rate of the transformer per day according to the average load rate of the transformer per hour;
determining the monthly average load rate of the transformer according to the daily average load rate of the transformer;
determining the average load rate of the transformer per year according to the average load rate of the transformer per month;
the calculation method of the real-time load rate of the transformer is equal to the ratio of the real-time total current of the low-voltage side of the transformer to the rated current of the low-voltage side of the transformer.
Any method of the determination method of the real-time load factor of the transformer provided by the embodiment of the application may be applied to the processor 501, or implemented by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in software form in the processor 501. The Processor 501 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The steps of any method in the method for determining the real-time load rate of the transformer provided by the embodiment of the application can be directly implemented by the execution of a hardware decoding processor, or implemented by the combination of hardware and software units in the decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502, and completes the steps of the method for determining the real-time load rate of the transformer by combining the hardware.
Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.
Those skilled in the art will appreciate that the description of each embodiment has a respective emphasis, and reference may be made to the related description of other embodiments for those parts of an embodiment that are not described in detail.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for determining the real-time load factor of a transformer is characterized by comprising the following steps:
acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer;
determining a calculation method of the real-time load rate of the transformer according to the definition of the real-time load rate of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer;
determining the average load rate of the transformer per hour according to the calculation method of the real-time load rate of the transformer;
determining the average daily load rate of the transformer according to the average hourly load rate of the transformer;
determining the monthly average load rate of the transformer according to the daily average load rate of the transformer;
determining the average load rate of the transformer per year according to the average load rate of the transformer per month;
and the calculation method of the real-time load rate of the transformer is equal to the ratio of the real-time total current of the low-voltage side of the transformer to the rated current of the low-voltage side of the transformer.
2. The method for determining the real-time load factor of the transformer according to claim 1, further comprising: displaying the variation trend information of the average load rate of the transformer per hour, the average load rate of the transformer per day, the average load rate of the transformer per month and the average load rate of the transformer per year.
3. The method for determining the real-time load factor of the transformer according to claim 1, wherein the step of determining the average load factor of the transformer per hour according to the calculation method of the real-time load factor of the transformer comprises the following steps:
determining the real-time total current of the low-voltage side of the transformer per hour;
and obtaining the average load rate of the transformer per hour according to the real-time total current of the low-voltage side of the transformer per hour and the rated current of the low-voltage side of the transformer.
4. The method for determining the real-time load rate of the transformer according to claim 1, wherein determining the average daily load rate of the transformer according to the average hourly load rate of the transformer comprises:
and averaging the hourly average load rate of the transformer in one day to obtain the daily average load rate of the transformer.
5. The method for determining the real-time load rate of the transformer according to claim 1, wherein determining the monthly average load rate of the transformer according to the daily average load rate of the transformer comprises:
and averaging the average load rate of the transformer every day in one month to obtain the average load rate of the transformer every month.
6. The method for determining the real-time load rate of the transformer according to claim 1, wherein determining the average load rate of the transformer per year according to the average load rate of the transformer per month comprises:
and averaging the average load rate of the transformer every month in one year to obtain the average load rate of the transformer every year.
7. The method for determining the real-time load factor of the transformer according to claim 3, wherein the step of determining the real-time total current of the low-voltage side of the transformer per hour comprises the following steps:
acquiring a three-phase current value of a low-voltage side of the transformer;
calculating the average value of the three-phase current value according to the three-phase current value of the low-voltage side;
dividing each hour into N parts, and respectively determining the maximum value of the average value of each three-phase current value in the N parts;
and averaging the maximum value of the average value of each three-phase current value in the N parts to obtain the low-voltage side real-time total current of the transformer per hour.
8. A device for determining a real-time load factor of a transformer, comprising:
an acquisition module: the system comprises a voltage acquisition module, a voltage acquisition module and a current acquisition module, wherein the voltage acquisition module is used for acquiring real-time voltage of a low-voltage side of a transformer, real-time total current of the low-voltage side of the transformer, rated voltage of the low-voltage side of the transformer and rated current of the low-voltage side of the transformer;
a first determination module: the calculation method is used for determining the real-time load rate of the transformer according to the real-time load rate definition of the transformer, the real-time voltage of the low-voltage side of the transformer, the real-time total current of the low-voltage side of the transformer, the rated voltage of the low-voltage side of the transformer and the rated current of the low-voltage side of the transformer;
a second determination module: the method is used for determining the average load rate of the transformer per hour according to the calculation method of the real-time load rate of the transformer;
a third determination module: the average load rate of the transformer per day is determined according to the average load rate of the transformer per hour;
a fourth determination module: the average load rate of the transformer per month is determined according to the average load rate of the transformer per day;
a fifth determining module: the load control device is used for determining the average load rate of the transformer per year according to the average load rate of the transformer per month;
and the calculation method of the real-time load rate of the transformer is equal to the ratio of the real-time total current of the low-voltage side of the transformer to the rated current of the low-voltage side of the transformer.
9. An electronic device, comprising: a processor and a memory;
the processor is used for executing the method for determining the real-time load rate of the transformer according to any one of claims 1 to 7 by calling a program or an instruction stored in the memory.
10. A computer-readable storage medium storing a program or instructions for causing a computer to perform the method of determining the real-time load factor of a transformer according to any one of claims 1 to 7.
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| CN115796403A (en) * | 2023-02-08 | 2023-03-14 | 施维智能计量系统服务(长沙)有限公司 | Power supply device capacity expansion evaluation method and equipment and storage medium thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115796403A (en) * | 2023-02-08 | 2023-03-14 | 施维智能计量系统服务(长沙)有限公司 | Power supply device capacity expansion evaluation method and equipment and storage medium thereof |
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