CN115685048A - Online calibration method and system for communication module of intelligent electric meter - Google Patents
Online calibration method and system for communication module of intelligent electric meter Download PDFInfo
- Publication number
- CN115685048A CN115685048A CN202211525574.1A CN202211525574A CN115685048A CN 115685048 A CN115685048 A CN 115685048A CN 202211525574 A CN202211525574 A CN 202211525574A CN 115685048 A CN115685048 A CN 115685048A
- Authority
- CN
- China
- Prior art keywords
- target
- electric energy
- energy value
- meter
- electric meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004458 analytical method Methods 0.000 claims abstract description 39
- 230000005611 electricity Effects 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 claims abstract description 21
- 238000010835 comparative analysis Methods 0.000 claims abstract description 15
- 238000013461 design Methods 0.000 claims abstract description 12
- 238000009877 rendering Methods 0.000 claims abstract description 9
- 238000002474 experimental method Methods 0.000 claims description 17
- 230000001629 suppression Effects 0.000 claims description 17
- 238000004364 calculation method Methods 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 claims description 15
- 230000003750 conditioning effect Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 238000005457 optimization Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 2
- 238000004883 computer application Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses an online calibration method and system for a communication module of an intelligent ammeter, and relates to the technical field of computer application, wherein the method comprises the following steps: analyzing an electric energy metering principle of the target intelligent electric meter to obtain a target electric meter principle; a target virtual electric meter is obtained by combining the virtual instrument technical design based on the target electric meter principle; constructing a standard communication module; collecting a target power utilization data set through a standard communication module; rendering to a target virtual electric meter to obtain a target virtual electric energy value; obtaining a target actual electric energy value, and comparing the target actual electric energy value with the target virtual electric energy value to obtain a comparison analysis result; and calibrating the target actual electric energy value based on the comparative analysis result. The problem of exist among the prior art calibration method intelligent, calibration effect poor, and then influence the resident's interest of using electricity, influence relevant electric industry index reliability simultaneously is solved. The intelligent calibration degree of the target intelligent electric meter is improved, and the accuracy and effectiveness of the electricity consumption data are improved.
Description
Technical Field
The invention relates to the technical field of computer application, in particular to an online calibration method and system for a communication module of an intelligent ammeter.
Background
With the rapid development of the smart grid in China, the smart meter gradually replaces the traditional meter and is widely applied. Therefore, research on the smart meter is becoming more important, and the calibration of the communication module of the smart meter also has a significant influence on the application of the smart meter, so research and upgrading on the calibration of the communication module are urgently needed. The online calibration of the communication module in the intelligent electric meter not only relates to the vital interests of residential consumers, but also relates to the calculation accuracy and fairness of technical and economic indexes of various electric industries, and has important influence on guaranteeing the legal rights and interests of the national electric industry and electric power users. When the electricity consumption data collected by the intelligent electric meter are calibrated in the prior art, the calibration method is not intelligent, so that the calibration is not timely, the effect is poor, the problem that the electricity consumption data are not accurate enough is caused, and even the benefit of electricity consumption residents and the reliability of related electric industry indexes are influenced. Therefore, the research on carrying out data calibration on the intelligent electric meter by using the computer technology, the improvement of the intelligent degree of the intelligent electric meter calibration, the improvement of the utilization value of the intelligent electric meter and the like are of great significance.
However, when the electricity consumption data collected by the intelligent ammeter is calibrated in the prior art, the calibration method is not intelligent, the calibration effect is poor, the benefits of electricity consumption residents are influenced, and meanwhile the reliability of related electric industry indexes is influenced.
Disclosure of Invention
The invention aims to provide an online calibration method and system for a communication module of an intelligent ammeter, which are used for solving the technical problems that when power consumption data acquired by the intelligent ammeter are calibrated in the prior art, the calibration method is not intelligent, the calibration effect is poor, the benefits of power consumers are influenced, and the reliability of related power industry indexes is influenced.
In view of the above problems, the present invention provides an online calibration method and system for a communication module of a smart meter.
In a first aspect, the invention provides an online calibration method for a communication module of a smart meter, where the method is implemented by an online calibration system for a communication module of a smart meter, and the method includes: analyzing an electric energy metering principle of a target intelligent electric meter to obtain a target electric meter principle; based on the target electric meter principle, a target virtual electric meter of the target intelligent electric meter is obtained by combining with a virtual instrument technology design; constructing a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter; acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set; rendering the target power utilization data set to the target virtual electric meter to obtain a target virtual electric energy value; obtaining a target actual electric energy value of the target intelligent electric meter, and carrying out comparison analysis on the target actual electric energy value and the target virtual electric energy value to obtain a comparison analysis result; and calibrating the target actual electric energy value based on the comparison and analysis result.
In a second aspect, the present invention further provides an online calibration system for a communication module of a smart meter, configured to perform the online calibration method for the communication module of the smart meter according to the first aspect, where the system includes: the principle analysis module is used for carrying out electric energy metering principle analysis on the target intelligent electric meter to obtain a target electric meter principle; the virtual ammeter module is used for obtaining a target virtual ammeter of the target intelligent ammeter by combining a virtual instrument technical design based on the target ammeter principle; the communication building module is used for building a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter; the data acquisition module is used for acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set; the electric energy calculation module is used for rendering the target electricity utilization data set to the target virtual electric meter to obtain a target virtual electric energy value; the comparison analysis module is used for obtaining a target actual electric energy value of the target intelligent electric meter and comparing and analyzing the target actual electric energy value and the target virtual electric energy value to obtain a comparison analysis result; and the calibration execution module is used for calibrating the target actual electric energy value based on the comparison and analysis result.
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
analyzing an electric energy metering principle of a target intelligent electric meter to obtain a target electric meter principle; based on the target electric meter principle, a target virtual electric meter of the target intelligent electric meter is obtained by combining with a virtual instrument technology design; constructing a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter; acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set; rendering the target power utilization data set to the target virtual electric meter to obtain a target virtual electric energy value; obtaining a target actual electric energy value of the target intelligent electric meter, and carrying out comparative analysis on the target actual electric energy value and the target virtual electric energy value to obtain a comparative analysis result; and calibrating the target actual electric energy value based on the comparison and analysis result. The electric energy metering principle of the target intelligent electric meter is analyzed, and the target virtual electric meter is obtained by combining the virtual instrument technology, so that the technical effect of providing a basis and a data base for subsequently calibrating the electric energy value of the target intelligent electric meter is achieved. By constructing the standard communication module, the technical goal of intelligently processing and transmitting the real-time power utilization parameters of the target intelligent electric meter is realized, and the technical effect of providing reliable and accurate power utilization data for the subsequent target virtual electric meter to obtain the target virtual electric energy value is achieved. The target virtual electric energy value obtained intelligently by the target virtual electric meter is compared with the target actual electric energy value, and the target actual electric energy value is calibrated according to the comparison result, so that the calibration intelligent degree of the target intelligent electric meter is improved, and the technical effects of accuracy and effectiveness of power consumption data are improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained according to the provided drawings without inventive effort.
Fig. 1 is a schematic flow chart of an online calibration method for a communication module of a smart meter according to the present invention;
fig. 2 is a schematic flow chart of a standard communication module obtained in the online calibration method for the communication module of the smart meter according to the present invention;
fig. 3 is a schematic flow chart illustrating the metering optimization of the target actual electric energy value according to the error suppression scheme in the online calibration method for the smart meter communication module according to the present invention;
fig. 4 is a schematic flow chart illustrating the calibration of the target actual electric energy value in the online calibration method for the communication module of the smart meter according to the present invention;
fig. 5 is a schematic structural diagram of an online calibration system of a smart meter communication module according to the present invention.
Description of the reference numerals:
the system comprises a principle analysis module M100, a virtual electric meter module M200, a communication construction module M300, a data acquisition module M400, a calculation electric energy module M500, a comparison analysis module M600 and a calibration execution module M700.
Detailed Description
The invention provides an online calibration method and system for a communication module of an intelligent electric meter, and solves the technical problems that when electricity consumption data collected by the intelligent electric meter is calibrated in the prior art, the calibration method is not intelligent, the calibration effect is poor, the benefits of residents using electricity are influenced, and meanwhile the reliability of relevant electric industry indexes is influenced. The target virtual electric energy value obtained intelligently by the target virtual electric meter is compared with the target actual electric energy value, and the target actual electric energy value is calibrated according to the comparison result, so that the calibration intelligent degree of the target intelligent electric meter is improved, and the technical effects of accuracy and effectiveness of power consumption data are further improved.
In the technical scheme of the invention, the data acquisition, storage, use, processing and the like all conform to relevant regulations of national laws and regulations.
The technical solutions in the present invention will be described below clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments of the present invention, and it should be understood that the present invention is not limited by the exemplary embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
Example one
Referring to fig. 1, the present invention provides an online calibration method for a communication module of a smart meter, wherein the method is applied to an online calibration system for a communication module of a smart meter, and the method specifically includes the following steps:
step S100: analyzing an electric energy metering principle of the target intelligent electric meter to obtain a target electric meter principle;
specifically, the online calibration method of the smart meter communication module is applied to the online calibration system of the smart meter communication module, and a target smart meter can be simulated by using a computer technology to obtain a target virtual electric energy value, so that a basis is provided for calibrating a target actual electric energy value of the target smart meter. The target intelligent ammeter is any intelligent ammeter which needs to use the online calibration system to perform intelligent calibration on ammeter data. Before the target intelligent electric meter is calibrated, firstly, the working principle of the target intelligent electric meter is analyzed to obtain the principle of the target intelligent electric meter, with the development of science and technology, the principle of the intelligent electric meter is changed, each intelligent electric meter has different main functions and different principles, and the constructed components are different accordingly. Furthermore, different calibration modes exist for different intelligent electric meters. The induction-type intelligent electric meter is characterized in that when working voltage is applied to the intelligent electric meter and load current flows through the intelligent electric meter, working magnetic flux is generated by a current coil and a voltage coil in the meter respectively, induced eddy current is generated through a rotating element and interacts with the current coil and the voltage coil, a rotating torque is formed by taking a disc rotating shaft as a center, an electric energy meter disc rotates along with the rotation, a counter is driven to rotate through a bearing, the number of the disc rotating is calculated in an accumulated mode, and finally measured electric energy is displayed. By analyzing the electric energy metering principle of the target intelligent electric meter, the technical target for providing a foundation for subsequently constructing an online calibration system is realized.
Step S200: based on the target electric meter principle, combining with a virtual instrument technology design to obtain a target virtual electric meter of the target intelligent electric meter;
specifically, the virtual instrument technology refers to a computer-based instrument, and is based on general computer hardware and an operating system, and combines simple, efficient and flexible software to realize the functions of various instruments and complete various tests and measurements. And analyzing the principle of the target electric meter by using a virtual instrument technology, and coding and designing by using a computer technology to obtain the target virtual electric meter of the target intelligent electric meter. Exemplarily, a laboratory virtual instrument is used as a development platform of the intelligent electric energy meter, and a target virtual electric meter which is in accordance with the target intelligent electric meter is established by combining a built-in library function. The electric energy metering principle of the target intelligent electric meter is analyzed, and the target virtual electric meter is obtained by combining the virtual instrument technology, so that the technical effect of providing a basis and a data base for subsequently calibrating the electric energy value of the target intelligent electric meter is achieved.
Step S300: constructing a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter;
further, as shown in fig. 2, step S300 of the present invention further includes:
step S310: a standard signal conditioning unit is established through a voltage-current transformer;
step S320: obtaining a first component, wherein the first component comprises an A/D chip, and the A/D chip is used for carrying out data acquisition on the target smart electric meter;
step S330: obtaining a second component, wherein the second component comprises a DSP chip, and the DSP chip is used for processing the data collected by the A/D chip;
step S340: obtaining a target assembly based on the first assembly and the second assembly, wherein the target assembly comprises an A/D-DSP chip;
step S350: building a standard data acquisition unit based on the target component;
step S360: and obtaining the standard communication module according to the standard signal conditioning unit and the standard data acquisition unit.
Specifically, a standard communication module is constructed and is in communication connection with the target intelligent electric meter, so that the purposes of dynamically acquiring the electricity utilization related data of the target intelligent electric meter in real time and intelligently processing and transmitting the data are achieved.
Firstly, a standard signal conditioning unit is constructed through a voltage-current transformer. The standard signal conditioning unit adopts a voltage-current transformer with one ten-thousandth precision and is used for conditioning real-time electric signals. And then sequentially obtaining a first component and a second component, wherein the first component and the second component are both used for constructing the target component. The first component comprises an A/D chip, and the second component comprises a DSP chip. The A/D chip is used for collecting data of the target intelligent electric meter, and the DSP chip has the advantages of being high in operation speed, high in digital signal processing capacity and the like and is used for processing the data collected by the A/D chip. And then, the target assembly is constructed based on the first assembly and the second assembly, so that the target assembly comprises an A/D-DSP chip, and then a standard data acquisition unit is constructed through the A/D-DSP chip. And finally, the standard communication module is constructed and obtained according to the standard signal conditioning unit and the standard data acquisition unit.
By constructing the standard communication module, the technical goal of intelligently processing and transmitting the real-time power utilization parameters of the target intelligent electric meter is realized, and the technical effect of providing reliable and accurate power utilization data for the subsequent target virtual electric meter to obtain the target virtual electric energy value is achieved.
Step S400: acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set;
step S500: rendering the target power utilization data set to the target virtual electric meter to obtain a target virtual electric energy value;
further, step S500 of the present invention further includes:
step S510: sequentially extracting real-time voltage and real-time current in the target electricity utilization data set;
step S520: obtaining a preset circuit requirement, wherein the preset circuit requirement refers to a sine circuit;
step S530: judging whether the circuit of the target intelligent ammeter meets the preset circuit requirement or not;
step S540: if the circuit of the target intelligent electric meter meets the preset circuit requirement, calculating to obtain target instantaneous power based on the real-time voltage and the real-time current, wherein the calculation formula of the target instantaneous power is as follows:
step S550: wherein, the instituteThe above-mentioned
Is the target instantaneous power, the
Refers to a time of day, said refers to
Real time voltage of
Is a real-time current, said
Is the maximum value of the voltage, said means
Maximum value of current of
Is an angular frequency, said
Which refers to the phase difference between the voltage signal and the current signal.
Further, the invention also comprises the following steps:
step S561: acquiring target instantaneous power of a preset signal period to form a target instantaneous power set;
step S562: and performing integral calculation on the target instantaneous power set to obtain the target virtual electric energy value, wherein a calculation formula of the target virtual electric energy value is as follows:
step S563: wherein, the
Refers to the target virtual electric energy value,
of [0,1 ]]Is the period of the predetermined signal, the
Refers to the target instantaneous power set.
Specifically, the real-time electricity utilization parameters of the target intelligent electric meter are collected through the standard communication module to obtain a target electricity utilization data set, and the target electricity utilization data set is rendered to the target virtual electric meter to obtain a target virtual electric energy value.
Firstly, extracting real-time voltage and real-time current in the target electricity utilization data set in sequence. And then obtaining a preset circuit requirement, wherein the preset circuit requirement refers to a sine circuit. Then, whether a circuit of the target smart meter meets the preset circuit requirement is judged, and when the circuit of the target smart meter meets the preset circuit requirement, that is, when the circuit of the target smart meter is a sine circuit, the target virtual meter calculates a target instantaneous power based on the real-time voltage and the real-time current, wherein a calculation formula of the target instantaneous power is as follows:
wherein, the
Means that theTarget instantaneous power of
Refers to a time of day, said refers to
Real time voltage of
Is a real-time current, said
Is the maximum value of the voltage, said means
Maximum value of current of
Is an angular frequency, said
Refers to the phase difference between the voltage signal and the current signal. That is, after power is supplied, current is generated, the power generated at a certain time t is called instantaneous power, and the calculation formula of the target instantaneous power can be obtained by further conversion as follows:
further, target instantaneous power of a preset signal period is collected to form a target instantaneous power set. The electric energy is the product of power and time, i.e. the power is accumulated, i.e. the power is integrated. Therefore, the target instantaneous power set is subjected to integral calculation to obtain the target virtual electric energy value, wherein the calculation formula of the target virtual electric energy value is as follows:
wherein, the
Refers to the target virtual electric energy value,
of [0,1 ]]Is the period of the predetermined signal, the
Refers to the target instantaneous power set.
The target virtual electric energy value is obtained by analyzing and calculating the target electricity utilization data set of the target intelligent electric meter collected by the standard communication module, and the technical effect of providing a calibration basis for subsequently calibrating the target actual electric energy value of the target intelligent electric meter is achieved.
Step S600: obtaining a target actual electric energy value of the target intelligent electric meter, and carrying out comparative analysis on the target actual electric energy value and the target virtual electric energy value to obtain a comparative analysis result;
further, as shown in fig. 3, step S600 of the present invention further includes:
step S610: calculating the difference value between the target actual electric energy value and the target virtual electric energy value to obtain a target electric energy error;
step S620: analyzing the target electric energy error, and establishing an error factor set according to an analysis result, wherein the error factor set comprises a plurality of error factors;
step S630: analyzing the error factors in sequence, and generating an error suppression scheme according to an analysis result;
step S640: and carrying out metering optimization on the target actual electric energy value according to the error suppression scheme.
Specifically, a target actual electric energy value of the target intelligent electric meter is obtained through real-time acquisition, and further, the target actual electric energy value and the target virtual electric energy value are compared and analyzed to obtain a comparison and analysis result.
Firstly, calculating the difference value between the target actual electric energy value and the target virtual electric energy value to obtain a target electric energy error. The target electric energy error refers to a data error of the target smart meter. And then, analyzing the target electric energy error, and establishing an error factor set according to an analysis result, wherein the error factor set comprises a plurality of error factors. In other words, in the process of acquiring the target smart electric meter, the acquired target actual electric energy value has an error due to various factors. For example, the self metering error of the target intelligent electric meter, and various factors in the production and operation process of the electric power system can influence the normal metering of the electric meter. When the metering work is carried out, a comprehensive metering error exists, and under a normal working state, the reliability and the accuracy of the metering process of the electric meter are influenced by conditions such as the environmental temperature, the voltage environment, the operating frequency and the like of the electric meter. The metering error type of the electric energy meter design comprises a metering error caused in the production process of the intelligent electric meter, an error caused by the load characteristic of the intelligent electric meter, a measuring error caused by an unreasonable use mode of the intelligent electric meter and the like. And then, sequentially analyzing the plurality of error factors, and generating an error suppression scheme according to the analysis result. Exemplarily, selecting a standard intelligent ammeter model aiming at actual use occasions and the like, applying the model by adopting a reasonable access mode, and calibrating by combining the conditions of a measurement environment so as to reduce the metering error of the ammeter in the use process; if the induction type intelligent ammeter is directly influenced by the used current transformer and voltage transformer to generate data errors, the mutual inductance coefficients of the current transformer and the voltage transformer are measured again, and whether the ammeter meets the design and production requirements or not is verified. And finally, carrying out metering optimization on the target actual electric energy value according to the error suppression scheme.
Step S700: and calibrating the target actual electric energy value based on the comparison and analysis result.
Further, as shown in fig. 4, step S700 of the present invention further includes:
step S710: establishing a calibration error factor set according to the comparative analysis result, wherein the calibration error factor set comprises a plurality of calibration error factors;
step S720: sequentially analyzing the calibration error factors, and generating a calibration error suppression scheme according to an analysis result;
step S730: and calibrating the target actual electric energy value according to the calibration error suppression scheme.
Further, the invention also comprises the following steps:
step S741: designing a calibration detection experimental scheme;
step S742: carrying out a calibration experiment according to the calibration detection experiment scheme to obtain a calibration experiment result;
step S743: and evaluating the calibration effect according to the calibration experiment result.
Specifically, a calibration error factor set is established according to the comparative analysis result, wherein the calibration error factor set comprises a plurality of calibration error factors. Such as system design reasons, system usage reasons, environment, etc. And then, sequentially analyzing the plurality of calibration error factors, generating a calibration error suppression scheme according to an analysis result, and calibrating the target actual electric energy value according to the calibration error suppression scheme. For example, when an external power supply is converted into a tiny voltage current through a current and voltage transformer and then is transmitted to a calibration system, certain errors may be caused due to the precision of the current and voltage transformer in the conversion part, and factors such as the temperature of the environment also affect the accuracy of the transformer, so that components with high precision and high stability are selected as much as possible when devices in an external circuit are selected, and thus, the influence is not great when the device is operated in different environments or for a long time. In addition, the connection of the current and voltage input in the system connection line and the connection instability or interference of the output of the table to be tested and the platform cause calibration errors, so that the connection part with the external circuit can adopt the N1USB6008 with better real-time performance and stability.
Further, a calibration detection experiment scheme is designed, and a calibration experiment is carried out according to the calibration detection experiment scheme to obtain a calibration experiment result. And finally, evaluating the calibration effect according to the calibration experiment result. That is to say, the on-line calibration system is tested according to the calibration process of the target intelligent electric meter, and the performance and index conditions of each function of the on-line calibration system are verified according to the experimental result, so that whether the system meets the use requirement is evaluated.
In summary, the online calibration method for the communication module of the smart meter provided by the invention has the following technical effects:
analyzing an electric energy metering principle of a target intelligent electric meter to obtain a target electric meter principle; based on the target electric meter principle, combining with a virtual instrument technology design to obtain a target virtual electric meter of the target intelligent electric meter; constructing a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter; acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set; rendering the target power utilization data set to the target virtual electric meter to obtain a target virtual electric energy value; obtaining a target actual electric energy value of the target intelligent electric meter, and carrying out comparative analysis on the target actual electric energy value and the target virtual electric energy value to obtain a comparative analysis result; and calibrating the target actual electric energy value based on the comparison and analysis result. The target virtual electric meter is obtained by analyzing the electric energy metering principle of the target intelligent electric meter and combining the virtual instrument technology, and the technical effect of providing a basis and a data base for subsequently calibrating the electric energy value of the target intelligent electric meter is achieved. By constructing the standard communication module, the technical goal of intelligently processing and transmitting the real-time power utilization parameters of the target intelligent electric meter is realized, and the technical effect of providing reliable and accurate power utilization data for the subsequent target virtual electric meter to obtain the target virtual electric energy value is achieved. The target virtual electric energy value obtained intelligently by the target virtual electric meter is compared with the target actual electric energy value, and the target actual electric energy value is calibrated according to the comparison result, so that the calibration intelligent degree of the target intelligent electric meter is improved, and the technical effects of accuracy and effectiveness of power consumption data are further improved.
Example two
Based on the same inventive concept as the online calibration method of the smart meter communication module in the foregoing embodiment, the present invention further provides an online calibration system of the smart meter communication module, please refer to fig. 5, where the system includes:
the principle analysis module M100 is used for carrying out electric energy metering principle analysis on the target intelligent electric meter to obtain a target electric meter principle;
the virtual electric meter module M200 is used for obtaining a target virtual electric meter of the target intelligent electric meter by combining with a virtual instrument technical design based on the target electric meter principle;
the communication building module M300 is used for building a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter;
the data acquisition module M400 is used for acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set;
a calculating electric energy module M500, where the calculating electric energy module M500 is configured to render the target electricity consumption data set to the target virtual electricity meter, so as to obtain a target virtual electric energy value;
the comparison analysis module M600 is used for obtaining a target actual electric energy value of the target intelligent electric meter, and performing comparison analysis on the target actual electric energy value and the target virtual electric energy value to obtain a comparison analysis result;
a calibration execution module M700, wherein the calibration execution module M700 is used for calibrating the target actual electric energy value based on the comparison analysis result.
Further, the communication building module M300 in the system is further configured to:
a standard signal conditioning unit is established through a voltage-current transformer;
obtaining a first component, wherein the first component comprises an A/D chip, and the A/D chip is used for carrying out data acquisition on the target smart electric meter;
obtaining a second component, wherein the second component comprises a DSP chip, and the DSP chip is used for processing the data collected by the A/D chip;
obtaining a target assembly based on the first assembly and the second assembly, wherein the target assembly comprises an A/D-DSP chip;
building a standard data acquisition unit based on the target assembly;
and obtaining the standard communication module according to the standard signal conditioning unit and the standard data acquisition unit.
Further, the computing power module M500 in the system is further configured to:
sequentially extracting real-time voltage and real-time current in the target electricity utilization data set;
obtaining a preset circuit requirement, wherein the preset circuit requirement refers to a sine circuit;
judging whether the circuit of the target intelligent ammeter meets the preset circuit requirement or not;
if the circuit of the target intelligent electric meter meets the preset circuit requirement, calculating to obtain target instantaneous power based on the real-time voltage and the real-time current, wherein the calculation formula of the target instantaneous power is as follows:
wherein, the
Is referred to as the target instantaneous power,the above-mentioned
Is a time of day, the said means
Real time voltage of
Is a real-time current, said
Is the maximum value of the voltage, said means
Maximum value of current, said
Is an angular frequency, said
Refers to the phase difference between the voltage signal and the current signal.
Further, the computing power module M500 in the system is further configured to:
acquiring target instantaneous power of a preset signal period to form a target instantaneous power set;
performing integral calculation on the target instantaneous power set to obtain the target virtual electric energy value, wherein a calculation formula of the target virtual electric energy value is as follows:
wherein, the
Refers to the target virtual electric energy value,
of [0,1 ]]Is the period of the predetermined signal, the
Refers to the target instantaneous power set.
Further, the comparative analysis module M600 in the system is further configured to:
calculating the difference value between the target actual electric energy value and the target virtual electric energy value to obtain a target electric energy error;
analyzing the target electric energy error, and establishing an error factor set according to an analysis result, wherein the error factor set comprises a plurality of error factors;
analyzing the error factors in sequence, and generating an error suppression scheme according to an analysis result;
and carrying out metering optimization on the target actual electric energy value according to the error suppression scheme.
Further, the calibration execution module M700 in the system is further configured to:
establishing a calibration error factor set according to the comparative analysis result, wherein the calibration error factor set comprises a plurality of calibration error factors;
sequentially analyzing the calibration error factors, and generating a calibration error suppression scheme according to an analysis result;
and calibrating the target actual electric energy value according to the calibration error suppression scheme.
Further, the calibration execution module M700 in the system is further configured to:
designing a calibration detection experimental scheme;
carrying out a calibration experiment according to the calibration detection experiment scheme to obtain a calibration experiment result;
and evaluating the calibration effect according to the calibration experiment result.
In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, the foregoing online calibration method and specific example of the smart meter communication module in the first embodiment of fig. 1 are also applicable to the online calibration system of the smart meter communication module in this embodiment, and through the foregoing detailed description of the online calibration method of the smart meter communication module, a person skilled in the art can clearly know the online calibration system of the smart meter communication module in this embodiment, so for the sake of brevity of the description, details are not described here again. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the present invention and its equivalent technology, it is intended that the present invention also encompass such modifications and variations.
Claims (8)
1. An online calibration method for a communication module of a smart meter is characterized by comprising the following steps:
analyzing an electric energy metering principle of the target intelligent electric meter to obtain a target electric meter principle;
based on the target electric meter principle, combining with a virtual instrument technology design to obtain a target virtual electric meter of the target intelligent electric meter;
constructing a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter;
acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set;
rendering the target power utilization data set to the target virtual electric meter to obtain a target virtual electric energy value;
obtaining a target actual electric energy value of the target intelligent electric meter, and carrying out comparative analysis on the target actual electric energy value and the target virtual electric energy value to obtain a comparative analysis result;
and calibrating the target actual electric energy value based on the comparison and analysis result.
2. The method of claim 1, wherein the constructing a standard communication module comprises:
a standard signal conditioning unit is established through a voltage-current transformer;
obtaining a first component, wherein the first component comprises an A/D chip, and the A/D chip is used for carrying out data acquisition on the target smart electric meter;
obtaining a second component, wherein the second component comprises a DSP chip, and the DSP chip is used for processing the data collected by the A/D chip;
obtaining a target assembly based on the first assembly and the second assembly, wherein the target assembly comprises an A/D-DSP chip;
building a standard data acquisition unit based on the target assembly;
and obtaining the standard communication module according to the standard signal conditioning unit and the standard data acquisition unit.
3. The method of claim 1, further comprising, prior to said rendering said target electricity data set to said target virtual electricity meter resulting in a target virtual electric energy value:
sequentially extracting real-time voltage and real-time current in the target electricity utilization data set;
obtaining a preset circuit requirement, wherein the preset circuit requirement refers to a sine circuit;
judging whether the circuit of the target intelligent ammeter meets the preset circuit requirement or not;
if the circuit of the target intelligent electric meter meets the preset circuit requirement, calculating to obtain target instantaneous power based on the real-time voltage and the real-time current, wherein the calculation formula of the target instantaneous power is as follows:
wherein, the
Refers to the target instantaneous power, the
Is a time of day, the said means
Real time voltage of
Is referred to as the real-time current, said
Is the maximum value of the voltage, said means
Maximum value of current, said
Is an angular frequency, said
Refers to the phase difference between the voltage signal and the current signal.
4. The method of claim 3, further comprising:
acquiring target instantaneous power of a preset signal period to form a target instantaneous power set;
performing integral calculation on the target instantaneous power set to obtain the target virtual electric energy value, wherein a calculation formula of the target virtual electric energy value is as follows:
wherein, the
Refers to the target virtual electric energy value,
of [0,1 ]]Is the period of the predetermined signal, the
Refers to the target instantaneous power set.
5. The method according to claim 1, further comprising, after said obtaining a target actual electric energy value of said target smart meter:
calculating the difference value between the target actual electric energy value and the target virtual electric energy value to obtain a target electric energy error;
analyzing the target electric energy error, and establishing an error factor set according to an analysis result, wherein the error factor set comprises a plurality of error factors;
analyzing the error factors in sequence, and generating an error suppression scheme according to an analysis result;
and carrying out metering optimization on the target actual electric energy value according to the error suppression scheme.
6. The method according to claim 1, wherein said calibrating said target actual electrical energy value based on said comparative analysis results comprises:
establishing a calibration error factor set according to the comparative analysis result, wherein the calibration error factor set comprises a plurality of calibration error factors;
sequentially analyzing the calibration error factors, and generating a calibration error suppression scheme according to an analysis result;
and calibrating the target actual electric energy value according to the calibration error suppression scheme.
7. The method of claim 6, further comprising:
designing a calibration detection experimental scheme;
carrying out a calibration experiment according to the calibration detection experiment scheme to obtain a calibration experiment result;
and evaluating the calibration effect according to the calibration experiment result.
8. An online calibration system for a smart meter communication module, comprising:
the principle analysis module is used for carrying out electric energy metering principle analysis on the target intelligent electric meter to obtain a target electric meter principle;
the virtual ammeter module is used for obtaining a target virtual ammeter of the target intelligent ammeter by combining a virtual instrument technical design based on the target ammeter principle;
the communication construction module is used for constructing a standard communication module, wherein the standard communication module is in communication connection with the target intelligent electric meter;
the data acquisition module is used for acquiring real-time power utilization parameters of the target intelligent electric meter through the standard communication module to obtain a target power utilization data set;
the electric energy calculating module is used for rendering the target electricity utilization data set to the target virtual electricity meter to obtain a target virtual electric energy value;
the comparison analysis module is used for obtaining a target actual electric energy value of the target intelligent electric meter and comparing and analyzing the target actual electric energy value and the target virtual electric energy value to obtain a comparison analysis result;
and the calibration execution module is used for calibrating the target actual electric energy value based on the comparison and analysis result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525574.1A CN115685048A (en) | 2022-12-01 | 2022-12-01 | Online calibration method and system for communication module of intelligent electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525574.1A CN115685048A (en) | 2022-12-01 | 2022-12-01 | Online calibration method and system for communication module of intelligent electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115685048A true CN115685048A (en) | 2023-02-03 |
Family
ID=85055381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211525574.1A Pending CN115685048A (en) | 2022-12-01 | 2022-12-01 | Online calibration method and system for communication module of intelligent electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115685048A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115932702A (en) * | 2023-03-14 | 2023-04-07 | 武汉格蓝若智能技术股份有限公司 | Voltage transformer online operation calibration method and device based on virtual standard device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718856A (en) * | 2009-12-11 | 2010-06-02 | 中国电力科学研究院 | Calibration system of digital quantity input type electric energy meter |
| CN201749162U (en) * | 2010-09-14 | 2011-02-16 | 黑龙江省电力科学研究院 | Power Quality Monitoring Device Based on Virtual Instrument Technology |
| CN103901391A (en) * | 2014-04-09 | 2014-07-02 | 国家电网公司 | Novel analog standard meter with digital electric energy meter detection function and detection method |
| CN106226723A (en) * | 2016-07-12 | 2016-12-14 | 中国电力科学研究院 | A kind of electric energy metrical sunykatuib analysis system and method towards complex nonlinear load environment |
| CN207133420U (en) * | 2017-07-29 | 2018-03-23 | 周晓辉 | A kind of measurement instrument data acquisition, processing system |
| CN113447879A (en) * | 2021-05-27 | 2021-09-28 | 国网山东省电力公司营销服务中心(计量中心) | Electric energy meter metering error prediction method, system and device based on multi-stress influence |
| CN113899912A (en) * | 2021-06-30 | 2022-01-07 | 国网山东省电力公司营销服务中心(计量中心) | Electric meter metering error compensation method and system based on Ailin-normal distribution model |
| CN114814707A (en) * | 2021-09-28 | 2022-07-29 | 中国电力科学研究院有限公司 | A method, device, terminal and readable medium for analyzing stress error of smart meter |
| CN115144809A (en) * | 2022-07-01 | 2022-10-04 | 万安裕高电子科技有限公司 | Remote calibration method and system for intelligent electric meter |
-
2022
- 2022-12-01 CN CN202211525574.1A patent/CN115685048A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718856A (en) * | 2009-12-11 | 2010-06-02 | 中国电力科学研究院 | Calibration system of digital quantity input type electric energy meter |
| CN201749162U (en) * | 2010-09-14 | 2011-02-16 | 黑龙江省电力科学研究院 | Power Quality Monitoring Device Based on Virtual Instrument Technology |
| CN103901391A (en) * | 2014-04-09 | 2014-07-02 | 国家电网公司 | Novel analog standard meter with digital electric energy meter detection function and detection method |
| CN106226723A (en) * | 2016-07-12 | 2016-12-14 | 中国电力科学研究院 | A kind of electric energy metrical sunykatuib analysis system and method towards complex nonlinear load environment |
| CN207133420U (en) * | 2017-07-29 | 2018-03-23 | 周晓辉 | A kind of measurement instrument data acquisition, processing system |
| CN113447879A (en) * | 2021-05-27 | 2021-09-28 | 国网山东省电力公司营销服务中心(计量中心) | Electric energy meter metering error prediction method, system and device based on multi-stress influence |
| CN113899912A (en) * | 2021-06-30 | 2022-01-07 | 国网山东省电力公司营销服务中心(计量中心) | Electric meter metering error compensation method and system based on Ailin-normal distribution model |
| CN114814707A (en) * | 2021-09-28 | 2022-07-29 | 中国电力科学研究院有限公司 | A method, device, terminal and readable medium for analyzing stress error of smart meter |
| CN115144809A (en) * | 2022-07-01 | 2022-10-04 | 万安裕高电子科技有限公司 | Remote calibration method and system for intelligent electric meter |
Non-Patent Citations (2)
| Title |
|---|
| 张小平: "电能计量装置综合误差分析及减小措施", 西北电力技术, no. 01, 29 February 2004 (2004-02-29) * |
| 戎君;张贵新;朱小梅;王鹏;: "基于相位差校正法的虚拟谐波功率与电能计算", 电测与仪表, no. 11, 25 November 2008 (2008-11-25) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115932702A (en) * | 2023-03-14 | 2023-04-07 | 武汉格蓝若智能技术股份有限公司 | Voltage transformer online operation calibration method and device based on virtual standard device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109633262A (en) | Three phase harmonic electric energy gauging method, device based on composite window multiline FFT | |
| CN103513211A (en) | Detecting device for alternating-current impedance tester | |
| CN110440846A (en) | A kind of collecting method of encoder, system, terminal and storage medium | |
| CN106646333A (en) | Intelligent electric energy meter on-line monitoring and remote control system | |
| CN115685048A (en) | Online calibration method and system for communication module of intelligent electric meter | |
| Gunawan et al. | Design of power factor meter using internet of things for power factor improvement remote monitoring and data logging | |
| CN118548944B (en) | High-precision flow measurement method and device based on Hall element | |
| CN2702317Y (en) | Resistance instrument scaling method calibration circuit | |
| Maroşan et al. | Real time data acquisition of low-cost current sensors acs712-05 and ina219 using raspberry pi, daqcplate and node-red | |
| CN111707867B (en) | Alternating current measuring method and device, electronic equipment and storage medium | |
| Bucci et al. | Development of a low cost power meter based on a digital signal controller | |
| Liu et al. | The research of OLTC on-line detection system based on embedded and wireless sensor networks | |
| CN204129201U (en) | An error detection device for high-voltage electric energy metering equipment | |
| CN102466789A (en) | Photoelectric transformer stability testing device and method | |
| Zhang et al. | Automation level of measurement and development of load cells | |
| CN203502039U (en) | Automatic rotating speed verifying device | |
| CN115754812A (en) | Method and device for detecting internal short circuit fault of stator winding of variable-speed pumped storage unit | |
| Zhang et al. | Research on the error analysis of electric energy metering devices in AC power transmission systems | |
| CN115951293A (en) | Error monitoring method of current transformer, electronic equipment, system and storage medium | |
| CN108196211A (en) | A kind of number table automatic verification system | |
| CN200976038Y (en) | Extrusion machine comprehensive measuring instrument | |
| Liu et al. | A Metering Device for DC Energy Meters | |
| Qi et al. | OPTIMIZING HARMONIC DETECTION: MECHATRONIC APPROACHES FOR ENHANCED ELECTRIC POWER INFORMATION ACQUISITION | |
| CN118362939B (en) | Method and system for detecting environmental leakage interference in earth resistivity observation | |
| Zhu et al. | Research on adaptive state prediction method for the metering error of capacitor voltage transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 109, Yongchang Road, Shifeng Street, Tiantai County, Taizhou City, Zhejiang Province 317200 Applicant after: ZHEJIANG WELLSUN INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 317200 15 Xingye East Third Street, Fuxi street, Tiantai County, Taizhou, Zhejiang Applicant before: ZHEJIANG WELLSUN INTELLIGENT TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information |