CN114114130A - Electric energy meter testing method, system and device based on actual load on simulation site - Google Patents
Electric energy meter testing method, system and device based on actual load on simulation site Download PDFInfo
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Abstract
The invention provides an electric energy meter testing method, system and device based on actual load on a simulation site, and relates to the field of electric energy meter testing. The operation control of the rear-end load is realized by controlling the on-off of each socket in the actual load module, so that the actual load on the site is simulated, the state of a user on the site is simulated, the reliability test of the electric energy meter is realized, the reliability of the electric energy meter in actual use is increased, the abnormal probability of the electric energy meter in actual use is reduced, the problem of meter occurrence caused by abnormal operation of the meter is avoided, the huge economic loss caused by users and power supply companies is further avoided, and the user experience is improved.
Description
Technical Field
The application relates to the field of electric energy meter testing, in particular to an electric energy meter testing method, system and device based on actual load on a simulation site.
Background
At present, the charge calculation between a power supply company and a resident user is almost carried out by a single-phase electronic electric energy meter. In the field use process of residents, because the electric energy meter is insufficient in testing the actual state, the electric energy meter can run abnormally in the actual environment, so that the meter is out of order, and huge economic losses are brought to users and power supply companies.
Therefore, an electric energy meter testing method is needed to test the reliability of the electric energy meter so as to reduce the probability of the abnormality of the electric energy meter in actual use.
Disclosure of Invention
In order to solve the problems of the prior art, the embodiment of the invention provides an electric energy meter testing method, system and device based on a simulation field actual load, which realizes the reliability test of an electric energy meter by simulating the state of a field user, increases the reliability of the electric energy meter in actual use, reduces the abnormal probability of the electric energy meter in actual use, and avoids the problem of meter occurrence caused by abnormal operation of the meter, thereby further avoiding huge economic loss brought by users and power supply companies and improving the user experience; the technical scheme is as follows:
in a first aspect, a method for testing electric energy meters based on simulation of actual loads on site is provided, the method is applied to an electric energy meter at least comprising S, N test electric energy meters, a standard meter P and a standard meter E, the test electric energy meters comprise a test electric energy meter configured with a carrier module and an electric energy meter not configured with the carrier module, and the method comprises the following steps:
acquiring the electric energy consumption value of the standard meter P;
calculating to obtain the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
and calculating the theoretical power consumption value of the nth test power meter by using the following formula according to the data of the standard meter and the power consumption value of the standard meter P:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
and judging whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter.
Optionally, the obtaining the electric energy consumption value of the standard meter P includes:
calculating the consumed electric energy of a standard meter E by using the following formula according to the electric energy consumption value of the standard meter, and taking the consumed electric energy as the consumed electric energy value of the standard meter;
Tbase＝Tp-Te；
wherein, TbaseIs the electric energy consumption value, T, of the standard meterpIs the electric energy consumption value, T, of the standard meter PeAnd the electric energy consumption value of the standard meter E is obtained.
Optionally, the configuring, by the test electric meter, the carrier module, and the calculating to obtain the electric energy consumption value of the test electric meter configured with the carrier module according to the data of the standard meter include:
calculating to obtain single block consumed electric energy (consumed electric energy value of the test electric energy meter) of the test electric energy meter configured with the carrier module by using the following formula according to the data of the standard meter, the total number of the test electric energy meters and the consumed electric energy value of the standard meter;
wherein, ThavgThe electric energy consumption value of the electric energy meter is tested by the carrier module, N is the total number of the electric energy meters, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumption electric energy value of the standard meter is shown, t is the time from the beginning of the system operation to the recording time, the unit is hour, and X1 is the number of the test electric energy meters without the carrier module.
Optionally, the step of calculating, according to the data of the standard meter, the electric energy consumption value of the test electric energy meter not configured with the carrier module includes:
calculating the power consumption of the test electric energy form block without the carrier module according to the following formula by using the power of the module, the power consumption of the carrier module and the system running time,
Tnavg＝Thavg-0.0005*t；
wherein, TnavgConsuming power, T, for test power meter blocks without carrier moduleshavgThe test electric energy form block with the carrier module consumes electric energy, t is the time from the beginning of the system operation to the recording moment, and the unit is hour, and 0.0005 is the power of the carrier module, and the unit is kilowatt.
Optionally, the method further includes:
and calculating the daily consumed electric energy value of each test electric energy meter.
Optionally, the calculating the daily consumed electric energy value of each test electric energy meter includes:
calculating the daily consumed electric energy value of the standard meter;
calculating the daily consumed electric energy value of each test electric energy meter by using the following formula according to the daily consumed electric energy value of the standard meter and the daily freezing data of the test electric energy meters;
wherein, TdhpcFor testing the daily power consumption of a single block of the electric energy meter configured with the carrier module, N is the total number of the electric energy meters, TdsFor combined active electric energy, T, in S-day freezing records of a standard meterdpFor combined active energy, T, in the freezing record of day P of a standard meterdbaseThe number is the daily consumed electric energy value of the standard meter, and X1 is the number of the test electric energy meters which are not configured with the carrier modules;
Tdnpc＝Tdhpc-0.012；
wherein, TdnpcFor testing single-block daily power consumption, T, of electric energy meter without carrier moduledhpcThe method is used for testing the single-block daily power consumption of the electric energy meter for configuring a carrier module.
Optionally, the calculating the daily consumed electric energy value of the standard meter comprises
Calculating the daily consumed electric energy of the standard meter by using the following formula according to the daily freezing data of the standard meter,
Tdbase＝Tdp-Tde；
wherein, TdbaseFor daily consumption of electric energy, T, of said standard meterdpFor combined active energy, T, in the freezing record of day P of the standard meterdeAnd freezing the combined active electric energy in the record for the standard meter on day E.
In a second aspect, a power meter testing system based on a simulated field actual load is provided, the system at least includes S, N test power meters, a standard meter P, and a standard meter E, the S, N test power meters, the standard meter P, and the standard meter E are respectively connected to a load through sockets, the test power meters include a test power meter configured with a carrier module, and a power meter not configured with a carrier module, the system further includes:
the data acquisition device is used for acquiring data of S, N test electric energy meters, a standard meter P and a standard meter E of the standard meter;
the load control device is used for controlling the on-off of each socket in the actual load module to realize the operation control of the rear-end load so as to simulate the actual load on site;
computational analysis means for performing the following operations:
acquiring the electric energy consumption value of the standard meter P;
calculating to obtain the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
and calculating the theoretical power consumption value of the nth test power meter by using the following formula according to the data of the standard meter and the power consumption value of the standard meter P:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
judging whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter;
and the output prompting device is used for outputting a test result indicating whether the nth test electric energy meter is reliable or not.
Optionally, the obtaining the electric energy consumption value of the standard meter P includes:
calculating the consumed electric energy of a standard meter E by using the following formula according to the electric energy consumption value of the standard meter, and taking the consumed electric energy as the consumed electric energy value of the standard meter;
Tbase＝Tp-Te；
wherein，TbaseIs the electric energy consumption value, T, of the standard meterpIs the electric energy consumption value, T, of the standard meter PeAnd the electric energy consumption value of the standard meter E is obtained.
Optionally, the configuring, by the test electric meter, the carrier module, and the calculating to obtain the electric energy consumption value of the test electric meter configured with the carrier module according to the data of the standard meter include:
calculating to obtain single block consumed electric energy of the test electric energy meter configured with the carrier module by using the following formula according to the data of the standard meter, the total number of the test electric energy meters and the consumed electric energy value of the standard meter;
wherein, ThavgThe electric energy consumption value of the electric energy meter is tested by the carrier module, N is the total number of the electric energy meters, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumption electric energy value of the standard meter is shown, t is the time from the beginning of the system operation to the recording time, the unit is hour, and X1 is the number of the test electric energy meters without the carrier module.
Optionally, the step of calculating, according to the data of the standard meter, the electric energy consumption value of the test electric energy meter not configured with the carrier module includes:
calculating the power consumption of the test electric energy form block without the carrier module according to the following formula by using the power of the module, the power consumption of the carrier module and the system running time,
Tnavg＝Thavg-0.0005*t；
wherein, TnavgConsuming power, T, for test power meter blocks without carrier moduleshavgThe test electric energy form block with the carrier module consumes electric energy, t is the time from the beginning of the system operation to the recording moment, and the unit is hour, and 0.0005 is the power of the carrier module, and the unit is kilowatt.
Optionally, the method further includes:
and calculating the daily consumed electric energy value of each test electric energy meter.
Optionally, the calculating the daily consumed electric energy value of each test electric energy meter includes:
calculating the daily consumed electric energy value of the standard meter;
calculating the daily consumed electric energy value of each test electric energy meter by using the following formula according to the daily consumed electric energy value of the standard meter and the daily freezing data of the test electric energy meters;
wherein, TdhpcFor testing the daily power consumption of a single block of the electric energy meter configured with the carrier module, N is the total number of the electric energy meters, TdsFor combined active electric energy, T, in S-day freezing records of a standard meterdpFor combined active energy, T, in the freezing record of day P of a standard meterdbaseThe number is the daily consumed electric energy value of the standard meter, and X1 is the number of the test electric energy meters which are not configured with the carrier modules;
Tdnpc＝Tdhpc-0.012；
wherein, TdnpcFor testing single-block daily power consumption, T, of electric energy meter without carrier moduledhpcThe method is used for testing the single-block daily power consumption of the electric energy meter for configuring a carrier module.
Optionally, the calculating the daily consumed electric energy value of the standard meter comprises
Calculating the daily consumed electric energy of the standard meter by using the following formula according to the daily freezing data of the standard meter,
Tdbase＝Tdp-Tde；
wherein, TdbaseFor daily consumption of electric energy, T, of said standard meterdpFor combined active energy, T, in the freezing record of day P of the standard meterdeAnd freezing the combined active electric energy in the record for the standard meter on day E.
In a third aspect, an electric energy meter testing device based on a simulated field actual load is provided, the electric energy meter testing device includes:
the acquisition module is used for acquiring the electric energy consumption value of the standard meter P;
the first calculation module is used for calculating the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
and the second calculation module is used for calculating the theoretical electric energy consumption value of the nth test electric energy meter by using the following formula according to the data of the standard meter and the electric energy consumption value of the standard meter P:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
and the judging/outputting module is used for judging and outputting whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter.
Optionally, the obtaining the electric energy consumption value of the standard meter P includes:
calculating the consumed electric energy of a standard meter E by using the following formula according to the electric energy consumption value of the standard meter, and taking the consumed electric energy as the consumed electric energy value of the standard meter;
Tbase＝Tp-Te；
wherein, TbaseIs the electric energy consumption value, T, of the standard meterpIs the electric energy consumption value, T, of the standard meter PeAnd the electric energy consumption value of the standard meter E is obtained.
Optionally, the configuring, by the test electric meter, the carrier module, and the calculating to obtain the electric energy consumption value of the test electric meter configured with the carrier module according to the data of the standard meter include:
calculating to obtain single block consumed electric energy of the test electric energy meter configured with the carrier module by using the following formula according to the data of the standard meter, the total number of the test electric energy meters and the consumed electric energy value of the standard meter;
wherein, ThavgThe electric energy consumption value of the electric energy meter is tested by the carrier module, N is the total number of the electric energy meters, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumption electric energy value of the standard meter is shown, t is the time from the beginning of the system operation to the recording time, the unit is hour, and X1 is the number of the test electric energy meters without the carrier module.
Optionally, the step of calculating, according to the data of the standard meter, the electric energy consumption value of the test electric energy meter not configured with the carrier module includes:
calculating the power consumption of the test electric energy form block without the carrier module according to the following formula by using the power of the module, the power consumption of the carrier module and the system running time,
Tnavg＝Thavg-0.0005*t；
wherein, TnavgConsuming power, T, for test power meter blocks without carrier moduleshavgThe test electric energy form block with the carrier module consumes electric energy, t is the time from the beginning of the system operation to the recording moment, and the unit is hour, and 0.0005 is the power of the carrier module, and the unit is kilowatt.
Optionally, the method further includes:
and calculating the daily consumed electric energy value of each test electric energy meter.
Optionally, the calculating the daily consumed electric energy value of each test electric energy meter includes:
calculating the daily consumed electric energy value of the standard meter;
calculating the daily consumed electric energy value of each test electric energy meter by using the following formula according to the daily consumed electric energy value of the standard meter and the daily freezing data of the test electric energy meters;
wherein, TdhpcFor testing the daily power consumption of a single block of the electric energy meter configured with the carrier module, N is the total number of the electric energy meters, TdsFor combined active electric energy, T, in S-day freezing records of a standard meterdpFor combined active energy, T, in the freezing record of day P of a standard meterdbaseThe number is the daily consumed electric energy value of the standard meter, and X1 is the number of the test electric energy meters which are not configured with the carrier modules;
Tdnpc＝Tdhpc-0.012；
wherein, TdnpcFor testing single-block daily power consumption, T, of electric energy meter without carrier moduledhpcThe method is used for testing the single-block daily power consumption of the electric energy meter for configuring a carrier module.
Optionally, the calculating the daily consumed electric energy value of the standard meter comprises
Calculating the daily consumed electric energy of the standard meter by using the following formula according to the daily freezing data of the standard meter,
Tdbase＝Tdp-Tde；
wherein, TdbaseFor daily consumption of electric energy, T, of said standard meterdpFor combined active energy, T, in the freezing record of day P of the standard meterdeAnd freezing the combined active electric energy in the record for the standard meter on day E.
In a fourth aspect, there is provided an electric energy meter testing device based on a simulated field actual load, the electric energy meter testing device comprising a processor and a memory, the memory being configured to store a set of program codes, and the processor being configured to call the program codes stored in the memory for performing the method of any one of claims 1 to 7.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. the on-off of each socket in the actual load module is controlled to realize the operation control of the rear-end load, so that the actual load on site is simulated, the state of a user on site is simulated, the reliability test of the electric energy meter is realized, the reliability of the electric energy meter in actual use is increased, the abnormal probability of the electric energy meter in actual use is reduced, the problem of meter occurrence caused by abnormal operation of the meter is avoided, the huge economic loss brought by the user and a power supply company is further avoided, and the user experience is improved;
2. and the theoretical power consumption value of the test power meter is calculated through data of S, N test power meters, the standard power meter P and the standard power meter E, so that the reliability of the test result is further improved, and the reliability of the power meter in actual use is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for testing an electric energy meter based on a simulated field actual load according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an electric energy meter testing system based on a simulated field actual load according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment, a method for testing an electric energy meter based on a simulated field actual load is provided, and the method is applied to an electric energy meter at least including S, N test electric energy meters of a standard meter, a standard meter P and a standard meter E, where the test electric energy meter includes a test electric energy meter configured with a carrier module and an electric energy meter not configured with a carrier module, and the method includes:
101. acquiring the electric energy consumption value of the standard meter P;
102. calculating to obtain the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
103. according to the data of the standard meter and the electric energy consumption value of the standard meter P, the theoretical electric energy consumption value of the nth test electric energy meter is calculated by using the following formula:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
104. and judging whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter.
Optionally, the step 101 of obtaining the power consumption value of the standard meter P includes:
calculating the consumed electric energy of the standard meter E by using the following formula according to the electric energy consumption value of the standard meter, and taking the consumed electric energy as the consumed electric energy value of the standard meter;
Tbase＝Tp-Te；
wherein, TbaseIs the electric energy consumption value of a standard meter, TpIs the power consumption value, T, of the standard meter PeThe electric energy consumption value of the standard meter E is shown.
Optionally, the step 102 of configuring the carrier module with the test electric meter, and calculating the electric energy consumption value of the test electric meter configured with the carrier module according to the data of the standard meter includes:
calculating to obtain single block consumed electric energy of the test electric energy meter configured with the carrier module by using the following formula according to the data of the standard meter, the total number of the test electric energy meters and the consumed electric energy value of the standard meter;
wherein, ThavgThe electric energy consumption value of the electric energy meter is tested by the carrier module, N is the total number of the electric energy meters, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumption electric energy value of the standard meter is shown, t is the time from the beginning of the system operation to the recording time, the unit is hour, and X1 is the number of the test electric energy meters without the carrier module.
Optionally, the step 102 of calculating, according to the data of the standard meter, the electric energy consumption value of the test electric energy meter without the carrier module includes:
calculating the power consumption of the test electric energy form block without the carrier module according to the following formula by using the power of the module, the power consumption of the carrier module and the system running time,
Tnavg＝Thavg-0.0005*t；
wherein, TnavgConsuming power, T, for test power meter blocks without carrier moduleshavgThe test electric energy form block with the carrier module consumes electric energy, t is the time from the beginning of the system operation to the recording moment, and the unit is hour, and 0.0005 is the power of the carrier module, and the unit is kilowatt.
Optionally, the method further comprises:
105. and calculating the daily consumed electric energy value of each test electric energy meter.
Optionally, the step 105 of calculating the daily consumed electric energy value of each test electric energy meter includes:
calculating the daily consumed electric energy value of the standard meter;
calculating the daily consumed electric energy value of each test electric energy meter by using the following formula according to the daily consumed electric energy value of the standard meter and the daily freezing data of the test electric energy meters;
wherein, TdhpcFor testing the daily power consumption of a single block of the electric energy meter configured with the carrier module, N is the total number of the electric energy meters, TdsFor combined active electric energy, T, in S-day freezing records of a standard meterdpFor combined active energy, T, in the freezing record of day P of a standard meterdbaseThe number is the daily consumed electric energy value of the standard meter, and X1 is the number of the test electric energy meters which are not configured with the carrier modules;
Tdnpc＝Tdhpc-0.012；
wherein, TdnpcFor testing single-block daily power consumption, T, of electric energy meter without carrier moduledhpcThe method is used for testing the single-block daily power consumption of the electric energy meter for configuring a carrier module.
Optionally, calculating the daily consumed electric energy value of the standard table comprises
Calculating the daily consumed electric energy of the standard meter by the daily freezing data of the standard meter and using the following formula,
Tdbase＝Tdp-Tde；
wherein, TdbaseDaily consumption of electric energy, T, for standard metersdpFor combined active energy, T, in the freezing record of day P of a standard meterdeAnd freezing the combined active electric energy in the record for the E day of the standard meter.
Further, in order to facilitate the understanding of the technical solutions described in the embodiments of the present invention by those skilled in the art, the above method may be further expressed as:
test preparation: the upper computer reads the communication addresses of the test table, allocates the communication addresses in sequence again, performs time correction operation on the test table to ensure time accuracy, performs variable and accuracy evaluation, reads all freezing occurrence time of the test table back after the evaluation, configures freezing time of the standard table according to the time, configures all reporting modes of all the test tables into active reporting, performs zero clearing operation on the standard table and the test table, and completes test preparation.
The first step is as follows: the scheme is configured, the optional schemes comprise a full load test, a fixed time power-down test, a random on-off certain load test, a fixed on-off certain load test, a random on-off random load test and the like, necessary parameters of the scheme are configured at the same time after the scheme is selected, the operation time is selected, and the scheme test is started.
The second step is that: the upper computer controls the on-off of the load end socket within a set time according to the setting, so that different states of the load end are realized, and a test environment is created for the experiment table.
The third step: the upper computer reads the relevant freezing data of all the test tables and the standard tables one minute after the corresponding freezing time, analyzes the freezing data of the test tables and verifies the reliability of various freezing functions of the tables;
the fourth step: the upper computer monitors the reported data of the test meter in real time, actively collects the upper report form and the upper 1 record of the event corresponding to the standard meter when the reported data of the meter is received, and then analyzes the event data of the test meter and verifies the reliability of various event functions of the meter;
the fifth step: the upper computer begins to read the daily freezing data of the standard meter every ten minutes after the morning, calculates the daily power consumption of the electric energy meter and provides the daily power consumption to the output module;
the data analysis mentioned in the third and fourth steps is explained in detail here, and the analysis steps are as follows:
step 1: calculating theoretical values of variables and electric energy according to data of the standard meters and the number of the experimental meters, wherein the variables adopt a mean value calculation method, and the electric energy calculates a reference value of each experimental meter by the following method;
firstly, the consumption electric energy of the standard meter E is calculated by using the data collected by the standard meter according to the following formula and is used as the consumption electric energy of the standard meter,
Tbase＝Tp-Te
wherein, TbaseFor consumption of electric energy of standard meters, TpAs data of the standard Table P, TeData of standard table E;
then, the power consumption of the experimental table block with the carrier module is calculated by utilizing the data of the standard table, the total number of the experimental tables and the power consumption of the standard table according to the following formula,
wherein, ThavgConsuming electric energy for the experiment table block with the carrier module, wherein N is the total number of the experiment tables, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumed electric energy of the standard meter is t, the time from the beginning of the system operation to the recording moment is the unit of hour, and X1 is the number of the experiment meters without carrier modules.
Secondly, calculating the power consumption of the experimental table block without the carrier module by using the power of the module, the power consumption of the carrier module and the system running time according to the following formula,
Tnavg＝Thavg-0.0005*t
wherein, TnavgConsuming power, T, for an experiment table block without a carrier modulehavgThe electric energy is consumed for the experimental table block with the carrier module, t is the time from the beginning of the operation of the system to the recording moment, the unit is hour, and 0.0005 is the power of the carrier module, and the unit is kilowatt.
And finally, calculating the theoretical value of each experimental table by using the following formula according to the consumed electric energy of the standard table and the consumed electric energy of the experimental table blocks:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg
wherein, TnData for an electric energy meter numbered n, TpAs data of the standard table p, TbaseFor electric energy consumed by standard meters, X1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
step 2: and error calculation is carried out on the acquired data and the calculated theoretical values of all the experiment meters, when the error is less than 1%, the result is judged to be normal, abnormal conditions are determined when the error exceeds the range, abnormal prompt is timely carried out on an output window, even if the abnormal analysis processing is carried out by testers and research personnel, in addition, the error from the beginning of the experiment to the current error is taken as a sample, the root mean square error is calculated and is taken as the error deviation reference of the electric energy meter, and the error deviation reference is output to the testers.
Referring to fig. 2, a second embodiment provides an electric energy meter testing system based on a simulated field actual load, the system at least includes S, N standard meters, a P standard meter and an E standard meter, S, N standard meters, a P standard meter and an E standard meter are respectively connected to a load through a socket, the test meters include a test meter configured with a carrier module and an electric energy meter not configured with a carrier module, and the system further includes:
the data acquisition device is used for acquiring data of S, N test electric energy meters of the standard meter, the standard meter P and the standard meter E;
the load control device is used for controlling the on-off of each socket in the actual load module to realize the operation control of the rear-end load so as to simulate the actual load on site;
computational analysis means for performing the following operations:
acquiring the electric energy consumption value of the standard meter P;
calculating to obtain the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
according to the data of the standard meter and the electric energy consumption value of the standard meter P, the theoretical electric energy consumption value of the nth test electric energy meter is calculated by using the following formula:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
judging whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter;
and the output prompting device is used for outputting a test result indicating whether the Nth test electric energy meter is reliable or not.
Optionally, the obtaining the power consumption value of the standard meter P includes:
calculating the consumed electric energy of the standard meter E by using the following formula according to the electric energy consumption value of the standard meter, and taking the consumed electric energy as the consumed electric energy value of the standard meter;
Tbase＝Tp-Te；
wherein, TbaseIs the electric energy consumption value of a standard meter, TpIs the power consumption value, T, of the standard meter PeThe electric energy consumption value of the standard meter E is shown.
Optionally, the step of configuring the carrier module by the test electric meter, and the step of calculating the electric energy consumption value of the test electric energy meter configured with the carrier module according to the data of the standard meter includes:
calculating to obtain single block consumed electric energy of the test electric energy meter configured with the carrier module according to the data of the standard meter, the total number of the test electric energy meters and the consumed electric energy value of the standard meter;
wherein, ThavgThe electric energy consumption value of the electric energy meter is tested by the carrier module, N is the total number of the electric energy meters, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumption electric energy value of the standard meter is shown, t is the time from the beginning of the system operation to the recording time, the unit is hour, and X1 is the number of the test electric energy meters without the carrier module.
Optionally, the step of calculating the electric energy consumption value of the test electric energy meter without configuring the carrier module according to the data of the standard meter includes:
calculating the power consumption of the test electric energy form block without the carrier module according to the following formula by using the power of the module, the power consumption of the carrier module and the system running time,
Tnavg＝Thavg-0.0005*t；
wherein, TnavgConsuming power, T, for test power meter blocks without carrier moduleshavgThe test electric energy form block with the carrier module consumes electric energy, t is the time from the beginning of the system operation to the recording moment, and the unit is hour, and 0.0005 is the power of the carrier module, and the unit is kilowatt.
Optionally, the method further comprises:
and calculating the daily consumed electric energy value of each test electric energy meter.
Optionally, the calculating the daily consumed electric energy value of each test electric energy meter includes:
calculating the daily consumed electric energy value of the standard meter;
calculating the daily consumed electric energy value of each test electric energy meter by using the following formula according to the daily consumed electric energy value of the standard meter and the daily freezing data of the test electric energy meters;
wherein, TdhpcFor testing the daily power consumption of a single block of the electric energy meter configured with the carrier module, N is the total number of the electric energy meters, TdsFor combined active electric energy, T, in S-day freezing records of a standard meterdpFor combined active energy, T, in the freezing record of day P of a standard meterdbaseThe number is the daily consumed electric energy value of the standard meter, and X1 is the number of the test electric energy meters which are not configured with the carrier modules;
Tdnpc＝Tdhpc-0.012；
wherein, TdnpcFor testing single-block daily power consumption, T, of electric energy meter without carrier moduledhpcThe method is used for testing the single-block daily power consumption of the electric energy meter for configuring a carrier module.
Optionally, calculating the daily consumed electric energy value of the standard table comprises
Calculating the daily consumed electric energy of the standard meter by the daily freezing data of the standard meter and using the following formula,
Tdbase＝Tdp-Tde；
wherein, TdbaseDaily consumption of electric energy, T, for standard metersdpFor combined active energy, T, in the freezing record of day P of a standard meterdeAnd freezing the combined active electric energy in the record for the E day of the standard meter.
The system may be further expressed as:
the upper computer module is used for overall control of the system, and is used for carrying out preparation, data acquisition, data analysis and result output before an experiment and is used as a control core of the whole device;
the electric energy meter testing module is used for building a testing environment, the module is powered by commercial power, firstly, a standard meter S is used for carrying out data monitoring on equipment behind the meter and is used as a standard data source, then, N experimental meters are sequentially connected in series to serve as a testing target, finally, two standard meters, namely a standard meter P and a standard meter E, are connected in series, the standard meter E monitors an actual load module behind the standard meter E, and the standard meter P monitors the standard meter E and the actual load module, so that errors caused by the standard meters can be eliminated through calculation;
the module connects a plurality of on-off controllable sockets in parallel to the output end of a standard meter E, the sockets are connected with field common actual loads such as televisions, refrigerators, air conditioners, microwave ovens and the like, and the on-off state of the sockets is controlled through the upper computer module, so that the use condition of field users is simulated;
further, the upper computer module comprises:
the scheme customizing unit is used for customizing different experiment modes in the experiment process by experimenters, so that the actual operation environment of a field user can be simulated more comprehensively when the actual load module works in different states;
the real load control unit is used for controlling the on-off of the actual load module socket, and controlling the socket to switch the on-off state at a proper moment according to the setting of the customized scheme and the required on-off mode, so that the running state switching of the load is realized;
the data acquisition unit is used for carrying out data interaction with the standard tables and the experimental tables, adopts a 485 and carrier communication mode, establishes a communication channel with each table, establishes a good interaction environment for acquiring data and ensures the smooth acquisition of the data;
the calculation analysis unit is used for analyzing data and judging the data of the experiment table, analyzing and judging the data of the experiment table by using a data analysis algorithm provided by the application, and pushing a conclusion to a subsequent unit;
an output prompt unit: the device is used for providing detailed conclusion output for experimenters, mainly displaying the results of the calculation analysis unit, and taking the analysis results and the summary conclusion of testers as reference.
An embodiment three provides an electric energy meter testing arrangement based on simulation scene actual load, and electric energy meter testing arrangement includes:
the acquisition module is used for acquiring the electric energy consumption value of the standard meter P;
the first calculation module is used for calculating to obtain the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
the second calculation module is used for calculating the theoretical electric energy consumption value of the nth test electric energy meter by using the following formula according to the data of the standard meter and the electric energy consumption value of the standard meter P:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
and the judging/outputting module is used for judging and outputting whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter.
Optionally, the obtaining the power consumption value of the standard meter P includes:
calculating the consumed electric energy of the standard meter E by using the following formula according to the electric energy consumption value of the standard meter, and taking the consumed electric energy as the consumed electric energy value of the standard meter;
Tbase＝Tp-Te；
wherein, TbaseIs the electric energy consumption value of a standard meter, TpIs the power consumption value, T, of the standard meter PeThe electric energy consumption value of the standard meter E is shown.
Optionally, the step of configuring the carrier module by the test electric meter, and the step of calculating the electric energy consumption value of the test electric energy meter configured with the carrier module according to the data of the standard meter includes:
calculating to obtain single block consumed electric energy of the test electric energy meter configured with the carrier module by using the following formula according to the data of the standard meter, the total number of the test electric energy meters and the consumed electric energy value of the standard meter;
wherein, ThavgThe electric energy consumption value of the electric energy meter is tested by the carrier module, N is the total number of the electric energy meters, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumption electric energy value of the standard meter is shown, t is the time from the beginning of the system operation to the recording time, the unit is hour, and X1 is the number of the test electric energy meters without the carrier module.
Optionally, the step of calculating the consumed electric energy value of the test electric energy meter according to the data of the standard meter without configuring a carrier module for the test electric energy meter includes:
calculating the power consumption of the test electric energy form block without the carrier module according to the following formula by using the power of the module, the power consumption of the carrier module and the system running time,
Tnavg＝Thavg-0.0005*t；
wherein, TnavgConsuming power, T, for test power meter blocks without carrier moduleshavgThe test electric energy form block with the carrier module consumes electric energy, t is the time from the beginning of the system operation to the recording moment, and the unit is hour, and 0.0005 is the power of the carrier module, and the unit is kilowatt.
Optionally, the method further comprises:
and calculating the daily consumed electric energy value of each test electric energy meter.
Optionally, the calculating the daily consumed electric energy value of each test electric energy meter includes:
calculating the daily consumed electric energy value of the standard meter;
calculating the daily consumed electric energy value of each test electric energy meter by using the following formula according to the daily consumed electric energy value of the standard meter and the daily freezing data of the test electric energy meters;
wherein, TdhpcFor testing the daily power consumption of a single block of the electric energy meter configured with the carrier module, N is the total number of the electric energy meters, TdsFor combined active electric energy, T, in S-day freezing records of a standard meterdpFor combined active energy, T, in the freezing record of day P of a standard meterdbaseThe number is the daily consumed electric energy value of the standard meter, and X1 is the number of the test electric energy meters which are not configured with the carrier modules;
Tdnpc＝Tdhpc-0.012；
wherein, TdnpcFor testing single-block daily power consumption, T, of electric energy meter without carrier moduledhpcThe method is used for testing the single-block daily power consumption of the electric energy meter for configuring a carrier module.
Optionally, calculating the daily consumed electric energy value of the standard table comprises
Calculating the daily consumed electric energy of the standard meter by the daily freezing data of the standard meter and using the following formula,
Tdbase＝Tdp-Tde；
wherein, TdbaseDaily consumption of electric energy, T, for standard metersdpFor combined active energy, T, in the freezing record of day P of a standard meterdeAnd freezing the combined active electric energy in the record for the E day of the standard meter.
An embodiment four provides an electric energy meter testing device based on a simulated field actual load, the electric energy meter testing device comprises a processor and a memory, the memory is used for storing a group of program codes, and the processor calls the program codes stored in the memory to execute the method of any one of claims 1 to 7.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for testing an electric energy meter based on simulation of actual load on site is characterized in that the method is applied to an electric energy meter at least comprising S, N test electric energy meters, a standard meter P and a standard meter E, the test electric energy meters comprise a test electric energy meter configured with a carrier module and an electric energy meter not configured with the carrier module, and the method comprises the following steps:
acquiring the electric energy consumption value of the standard meter P;
calculating to obtain the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
and calculating the theoretical power consumption value of the nth test power meter by using the following formula according to the data of the standard meter and the power consumption value of the standard meter P:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
and judging whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter.
2. The method according to claim 1, wherein the obtaining of the electric energy consumption value of the standard meter P comprises:
calculating the consumed electric energy of a standard meter E by using the following formula according to the electric energy consumption value of the standard meter, and taking the consumed electric energy as the consumed electric energy value of the standard meter;
Tbase＝Tp-Te；
wherein, TbaseIs the electric energy consumption value, T, of the standard meterpIs the electric energy consumption value, T, of the standard meter PeAnd the electric energy consumption value of the standard meter E is obtained.
3. The method of claim 2, wherein the test electric meter configures a carrier module, and the calculating the electric energy consumption value of the test electric meter configured with the carrier module according to the data of the standard meter comprises:
calculating to obtain single block consumed electric energy of the test electric energy meter configured with the carrier module by using the following formula according to the data of the standard meter, the total number of the test electric energy meters and the consumed electric energy value of the standard meter;
wherein, ThavgThe electric energy consumption value of the electric energy meter is tested by the carrier module, N is the total number of the electric energy meters, TsAs data of the standard table S, TpAs data of the standard Table P, TbaseThe consumption electric energy value of the standard meter is shown, t is the time from the beginning of the system operation to the recording time, the unit is hour, and X1 is the number of the test electric energy meters without the carrier module.
4. The method of claim 2, wherein the test electric meter is not configured with a carrier module, and the calculating the electric energy consumption value of the test electric meter not configured with a carrier module according to the data of the standard meter comprises:
calculating the consumed electric energy of a test electric energy form block without a carrier module according to the following formula by using the power of the module, the power consumption of the carrier module and the system running time;
Tnavg＝Thavg-0.0005*t；
wherein, TnavgConsuming power, T, for test power meter blocks without carrier moduleshavgConsuming power for the test power form block with the carrier module, and t is the time from the beginning of the system operation to the recordingThe time of recording the moment is in units of hours, and 0.0005 is the power of the carrier module in units of kilowatts.
5. The method of any of claims 1 to 4, further comprising:
and calculating the daily consumed electric energy value of each test electric energy meter.
6. The method of claim 5, wherein said calculating a daily energy consumption value for each of the plurality of test energy meters comprises:
calculating the daily consumed electric energy value of the standard meter;
calculating the daily consumed electric energy value of each test electric energy meter by using the following formula according to the daily consumed electric energy value of the standard meter and the daily freezing data of the test electric energy meters;
wherein, TdhpcFor testing the daily power consumption of a single block of the electric energy meter configured with the carrier module, N is the total number of the electric energy meters, TdsFor combined active electric energy, T, in S-day freezing records of a standard meterdpFor combined active energy, T, in the freezing record of day P of a standard meterdbaseThe number is the daily consumed electric energy value of the standard meter, and X1 is the number of the test electric energy meters which are not configured with the carrier modules;
Tdnpc＝Tdhpc-0.012；
wherein, TdnpcFor testing single-block daily power consumption, T, of electric energy meter without carrier moduledhpcThe method is used for testing the single-block daily power consumption of the electric energy meter for configuring a carrier module.
7. The method of claim 6, wherein said calculating said standard meter daily consumed electrical energy value comprises
Calculating the daily consumed electric energy of the standard meter by using the following formula according to the daily freezing data of the standard meter,
Tdbase＝Tdp-Tde；
wherein, TdbaseFor daily consumption of electric energy, T, of said standard meterdpFor combined active energy, T, in the freezing record of day P of the standard meterdeAnd freezing the combined active electric energy in the record for the standard meter on day E.
8. An electric energy meter test system based on simulation on-site actual load is characterized in that the system at least comprises S, N test electric energy meters, a standard meter P and a standard meter E, wherein S, N test electric energy meters, the standard meter P and the standard meter E are respectively connected to a load through sockets, the test electric energy meters comprise test electric energy meters configured with carrier modules and electric energy meters not configured with the carrier modules, and the system further comprises:
the data acquisition device is used for acquiring data of S, N test electric energy meters, a standard meter P and a standard meter E of the standard meter;
the load control device is used for controlling the on-off of each socket in the actual load module to realize the operation control of the rear-end load so as to simulate the actual load on site;
computational analysis means for performing the following operations:
acquiring the electric energy consumption value of the standard meter P;
calculating to obtain the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
and calculating the theoretical power consumption value of the nth test power meter by using the following formula according to the data of the standard meter and the power consumption value of the standard meter P:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number of the test electric energy meters which are not configured with the carrier module after the nth meter,Tnavgfor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
judging whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter;
and the output prompting device is used for outputting a test result indicating whether the nth test electric energy meter is reliable or not.
9. The utility model provides an electric energy meter testing arrangement based on actual load in simulation scene which characterized in that, electric energy meter testing arrangement includes:
the acquisition module is used for acquiring the electric energy consumption value of the standard meter P;
the first calculation module is used for calculating the consumed electric energy value of the test electric energy meter according to the data of the standard meter;
and the second calculation module is used for calculating the theoretical electric energy consumption value of the nth test electric energy meter by using the following formula according to the data of the standard meter and the electric energy consumption value of the standard meter P:
Tn＝Tp+Tbase+X1*Tnavg+X2*Thavg；
wherein, TnIs the theoretical power consumption value, T, of the test electric energy meter with the number npIs the power consumption value, T, of a standard meter pbaseIs the electric energy consumption value, X, of a standard meter1The number T of the test electric energy meters which are not configured with the carrier module after the nth meternavgFor testing the power consumption value, X, of a power meter not provided with a carrier module2The number T of the test electric energy meters of the carrier module configured behind the nth meterhavgTesting the electric energy consumption value of the electric energy meter for configuring the carrier module;
and the judging/outputting module is used for judging and outputting whether the nth test electric energy meter is reliable or not according to the theoretical electric energy consumption value of the nth test electric energy meter and the actual meter reading value of the nth test electric energy meter.
10. An electric energy meter testing device based on a simulated field actual load, which is characterized by comprising a processor and a memory, wherein the memory is used for storing a group of program codes, and the processor calls the program codes stored in the memory to execute the method of any one of claims 1 to 7.
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