CN107843870A - A kind of method and system for detecting ammeter metering load curve and correcting errors - Google Patents
A kind of method and system for detecting ammeter metering load curve and correcting errors Download PDFInfo
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- CN107843870A CN107843870A CN201711201882.8A CN201711201882A CN107843870A CN 107843870 A CN107843870 A CN 107843870A CN 201711201882 A CN201711201882 A CN 201711201882A CN 107843870 A CN107843870 A CN 107843870A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Abstract
The invention discloses a kind of method for detecting ammeter metering load curve and correcting errors, including：Configure the test parameter and test condition of ammeter；Start load record, circulate n times, store the ammeter test data；Read the load curve stored every time, and compared with preparatory condition, if the load curve meets preparatory condition, then system rear 288 data in data storage described in retaking of a year or grade successively, judge whether the data are qualified, if qualified, system circulates M times again, load record data 99 are read, are judged whether consistent with ammeter calculating data；If consistent, output surveys categorical data and meets to require.A kind of system for detecting ammeter metering load curve and correcting errors, including initial setting module, data test module, data judge module, which reduce the work of tester, save the human cost of enterprise；Simultaneously comprehensive functional test, improves product quality；It is widely used in electric energy meter metering field.
Description
Technical field
The present invention relates to electric energy meter metering field, specially detects the method and system that ammeter metering load curve is corrected errors.
Background technology
Load curve：The curve that all kinds of electric loads change over time in power system；It is the electricity of scheduling power system
Power and the foundation for carrying out Power System Planning.The load of power system is related to all types of user of wide geographic area, the use of each user
Electric situation differs, and can not know in advance at what time, what place, which type load, therefore, power system increased
Load variations have randomness.Situation about being changed over time with load curve description load, and the rule of load variations are studied accordingly
Rule property.
It is well known that the construction of power supply has certain periodicity, it is impossible in a short time so that supply side deliverability has
The raising of highly significant；Improve the pressure of China's supply of electric power by improving the managerial skills of Demand-side, improve power supply
The economic benefit of enterprise, to improving the utilization ratio of China's energy, reducing environmental pollution or even the health of whole national economy is sent out
Exhibition all has very important significance.Meanwhile requirement of the power supply department to user side anti-theft electricity technology is also more and more urgent.Thus
The improvement to traditional means of settlement brought, the demand of the monitoring to big-and-middle industrial user and distribution transforming measure monitor point electricity consumption situation
It is more and more stronger.Load curve is recorded by electric energy meter, carries out customer account management work, understands customer electricity load character, and
The variation tendency of load is recognized in time, is advantageous to traffic department and is predicted work.
Load curve six class data (voltage/currents/frequency of record entry point；Active power；Power factor；Total electricity；Four
Quadrant is idle；Current requirement).Standard requires that every record of ammeter is that the whole of six class data is preserved；What load curve preserved
Moment is synchronous with ammeter clock, preserve data at the time of be according to six class data logging intervals of setting and the timing relationship of ammeter
Determine, the interval time of holding time is minimum 1 minute.
Existing test pattern, according to national standard at random to six class data according to the adjustment of time interval in specific electricity
Ammeter parameter setting is carried out under pressure and electric current and is had good luck, the data read-out for then being preserved ammeter by testing tool, according to people
Whether the software and hardware function that the result judgement that work judges is tested ammeter is normal.
The test mode of current ammeter factory man electric energy load curve has as follows：
Tester sets interval time and the pattern-word of a kind of load curve to ammeter, then starts ammeter, allows ammeter
Voluntarily record data, then again at moment time of setting, ammeter is closed, all data are read by software, manually taken out
Sample, and the data of anticipation are compared.
Because the metering of load curve and test data are very huge, even if this simple test above, will generally also spend
Several days time of professional, and this method can not accomplish to test comprehensively as far as possible, a kind of simply methods of sampling, it is in the later stage
Comparison in and drawn a conclusion by manually observation and calculating contrast, it is very time-consuming, arduously, and of low quality.
To sum up, the technology is necessary to be improved.
The content of the invention
In order to solve the above-mentioned technical problem, detect what ammeter metering load curve was corrected errors it is an object of the invention to provide a kind of
Method and system.
The technical solution adopted in the present invention is：
The present invention provides a kind of method for detecting ammeter metering load curve and correcting errors, and comprises the following steps：
System receives the instruction of user's input, configures the test parameter and test condition of ammeter；
The freeze frequency of all kinds of test datas is set respectively；
System starts load record, circulates n times, and wherein N is more than 288, stores the ammeter test data；
System reads the load curve stored every time respectively, and compared with preparatory condition, if the load curve is not
Meet preparatory condition, then system exports the load curve miscue；
If the load curve meets preparatory condition, system rear 288 data in data storage described in retaking of a year or grade successively,
And judge whether the data are qualified, if unqualified, system exports the load curve miscue；
If qualified, system circulates M times again, reads load record data 99, and judge the data whether with electricity
The data that meter is calculated are consistent, and wherein M is more than 99；
If consistent, output surveys categorical data and meets to require；
Above-mentioned steps are repeated in, until all kinds of test datas of the ammeter are completed to test.
As the improvement of the technical scheme, the test parameter include voltage/current/frequency, active power, power because
Number, total electricity.
As the improvement of the technical scheme, the test parameter also includes the idle and current requirement of four-quadrant.
As the improvement of the technical scheme, the test parameter also includes the record time of load curve.
As the improvement of the technical scheme, the test condition includes test voltage, electric current and phase angle.
Further, the test voltage includes normal voltage and/or critical decompression and/or superpressure.
Further, the preparatory condition includes predeterminated voltage vector, predetermined current vector, power factor.
On the other hand, the present invention also provides a kind of system for detecting ammeter metering load curve and correcting errors, including：
Initial setting module, for perform step system receive user input instruction, configure ammeter test parameter and
Test condition；The freeze frequency of all kinds of test datas is set respectively；
Data test module, start load record for performing step system, circulate n times, wherein N is more than 288, stores institute
State ammeter test data；System reads the load curve stored every time respectively, and compared with preparatory condition,
Data judge module, if being unsatisfactory for preparatory condition for performing the step load curve, described in system output
Load curve miscue；If the load curve meets preparatory condition, system successively in data storage described in retaking of a year or grade after
288 data, and judge whether the data are qualified, if unqualified, system exports the load curve miscue；
If qualified, system circulates M times again, reads load record data 99, and judge the data whether with electricity
The data that meter is calculated are consistent, and wherein M is more than 99；
If consistent, output surveys categorical data and meets to require；Above-mentioned steps are repeated in, until all kinds of surveys of the ammeter
Examination data are completed to test.
The beneficial effects of the invention are as follows：The method and system that detection ammeter metering load curve provided by the invention is corrected errors,
By setting test environment, circle collection load curve, while by covering a portion data storage, detect whether to meet
Preparatory condition, by retaking of a year or grade store data, judge whether the data obtained consistent with ammeter the data obtained, so judge draw it is negative
Lotus curve is corrected errors；By the method for this test ammeter load curve, ammeter load curve data type country mark ensure that
Quasi- all standing, data preserve complete documentation；Reduce adjustment of the tester to testing tool and test environment simultaneously, by soft
This method is realized in part control, simple, rational in infrastructure, is skillfully constructed, the concept of " intelligence test " is introduced, using what is designed in advance
Method, by pattern switching, user participates in configuration software, completes required function.This not only reduces the work of tester,
Save the human cost of enterprise；Simultaneously comprehensive functional test, rather than sample testing, improve product quality；With reference to
Computer problem analysis, no longer it is to visually observe and manually calculate so that test data is more accurate and true.
Brief description of the drawings
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the schematic flow sheet of first embodiment of the invention；
Fig. 2 is the control module schematic diagram of second embodiment of the invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
The present invention provides a kind of method for detecting ammeter metering load curve and correcting errors, and comprises the following steps：
System receives the instruction of user's input, configures the test parameter and test condition of ammeter；
The freeze frequency of all kinds of test datas is set respectively；
System starts load record, circulates n times, and wherein N is more than 288, stores the ammeter test data；
System reads the load curve stored every time respectively, and compared with preparatory condition, if the load curve is not
Meet preparatory condition, then system exports the load curve miscue；
If the load curve meets preparatory condition, system rear 288 data in data storage described in retaking of a year or grade successively,
And judge whether the data are qualified, if unqualified, system exports the load curve miscue；
If qualified, system circulates M times again, reads load record data 99, and judge the data whether with electricity
The data that meter is calculated are consistent, and wherein M is more than 99；
If consistent, output surveys categorical data and meets to require；Illustrate that curved surface obtained by the test data is correct simultaneously；
Above-mentioned steps are repeated in, until all kinds of test datas of the ammeter are completed to test.If surveyed Various types of data is equal
Meet to require, then it is correct to export the load curve, otherwise wrong.
As the improvement of the technical scheme, the test parameter include voltage/current/frequency, active power, power because
Number, total electricity.
As the improvement of the technical scheme, the test parameter also includes the idle and current requirement of four-quadrant.
As the improvement of the technical scheme, the test parameter also includes the record time of load curve.
As the improvement of the technical scheme, the test condition includes test voltage, electric current and phase angle.
Further, the test voltage includes normal voltage and/or critical decompression and/or superpressure.
Further, the preparatory condition includes predeterminated voltage vector, predetermined current vector, power factor.
As a specific embodiment of this programme, tester has configured test parameter before ammeter is tested, and such as records
Six class parameters are to be directed to three-phase meter, and six class parameters include voltage/current/frequency；Active power；Power factor；Total electricity；Four-quadrant
Limit idle；Current requirement；And single-phase meter standard provides, preceding four classes data only need to be recorded.If tested take temperature is single-phase meter, only
With four class data to be tested are configured, it is reconfigured at often taking turns voltage (or the normal voltage, or critical decompression, or super of test
Pressure condition), parameter of electric current environment etc..When test condition, all configuration is completed, and tester starts software and tested,
Without human attendance, software can voluntarily complete whole testing process, and in the process, voluntarily record, and compare for it, draw point
Result is analysed, facilitates tester to read.
Present invention employs all combination conditions according to ammeter industry national standard, voluntarily complete to check electricity using software
Whether table is correct, complete documentation load curve.
Wherein arrangements process includes：
1st, six classes of configuration meet the record time of curve (it can arbitrarily be set, such as 1 minute, 2 minutes, 5 minutes, 15 minutes)
The specific time is combined adjustment according to the process tested every time.
2nd, voltage, electric current and the phase angle of ammeter power supply are configured.Specific configuration can carry out group according to the process tested every time
Close adjustment.
Above-mentioned configuration can configure before total start-up course is tested, and software often takes turns test can be according to the parameter of test
Ammeter is configured.It can test to obtain whether ammeter accurate can be remembered in home and abnormal environment by setting
Load curve is recorded, so as to reflect whether embedded software program inside ammeter and hardware are rationally and correct.
A kind of reference picture 1, method for detecting ammeter metering load curve and correcting errors, comprises the following steps：
Software program carries out energy resource supply, then by communicating number to tested ammeter first by reading above-mentioned configuration
According to being handed down to ammeter；
Carry out freeze frequency setting：Such as by primary sources, voltage x current and frequency setting are to freeze once for two minutes, will
Secondary sources, active power are set as freezing one in 30 minutes inferior；
Load curve zeros data is carried out to ammeter；
Set ammeter time, such as 20,17/,1/1 00：59：57 seconds, it is therefore an objective to allow ammeter zero crossing to start to freeze load curve
Data；
Circulation 290 times, ammeter is adjusted to the time of earlier set, such as 1 hour, the purpose so done, be every time
Allow ammeter voluntarily to freeze the load curve data of each type, for example primary sources should be freezed 30 times, but actual freeze
Once, other data areas require knot according to standard, should mend FF data；The purpose that circulation is 290 times is the maximum because standard provides
Freezing data is 288 times, and the data freezed below are by data instead preceding successively, wherein 290 times herein are not limited,
As long as more than 288.
In described 290 times circulations, the load curve that ammeter freezes is read per secondary program, the algorithm ratio for carrying out and previewing
Compared with, such as voltage, whether the readout and actual value of electric current are in rational fluctuation range, and whether charge value is correct, either with or without different
Normal catastrophe etc..
After having carried out the judgement of described 290 times, program retaking of a year or grade 288 times again, wherein current no longer setting time, but by electricity
Rear 288 data in the data read-out of table, and 290 times of above-mentioned setting are compared.Its purpose is to examine ammeter to be
It is no to have properly stored every load curve record, and covering storage is determined.
It is above-mentioned judge it is errorless after, program recycles 100 times, reads 99 pieces of load record data block, and preserve every note
Data are recorded, judge data validation (whether cover FF)；Wherein cycle-index 100 does not limit equally, as long as more than 99.
After the completion of said process, program will supply parameter according to outer apparent source and carry out the second processing taken turns and com-parison and analysis,
Until Various types of data tests completion.
Reference picture 2, the present invention also provide a kind of system for detecting ammeter metering load curve and correcting errors, including：
Initial setting module, for perform step system receive user input instruction, configure ammeter test parameter and
Test condition；The freeze frequency of all kinds of test datas is set respectively；
Data test module, start load record for performing step system, circulate n times, wherein N is more than 288, stores institute
State ammeter test data；System reads the load curve stored every time respectively, and compared with preparatory condition,
Data judge module, if being unsatisfactory for preparatory condition for performing the step load curve, described in system output
Load curve miscue；If the load curve meets preparatory condition, system successively in data storage described in retaking of a year or grade after
288 data, and judge whether the data are qualified, if unqualified, system exports the load curve miscue；
If qualified, system circulates M times again, reads load record data 99, and judge the data whether with electricity
The data that meter is calculated are consistent, and wherein M is more than 99；
If consistent, output surveys categorical data and meets to require；Above-mentioned steps are repeated in, until all kinds of surveys of the ammeter
Examination data are completed to test.
The method and system that detection ammeter metering load curve provided by the invention is corrected errors, by setting test environment, are followed
Ring gathers load curve, while by covering a portion data storage, detects whether to meet preparatory condition, deposited by retaking of a year or grade
The data of storage, judge whether the data obtained is consistent with ammeter the data obtained, and then judge to draw correcting errors for load curve；Pass through this
The method of kind test ammeter load curve, ensure that ammeter load curve data type national standard all standing, data have preserved
Complete record；Reduce adjustment of the tester to testing tool and test environment simultaneously, this method is realized by software control, letter
It is single, rational in infrastructure, it is skillfully constructed, introduces the concept of " intelligence test ", using the method designed in advance, by pattern switching,
User participates in configuration software, completes required function.This not only reduces the work of tester, save the manpower of enterprise into
This；Simultaneously comprehensive functional test, rather than sample testing, improve product quality；With reference to computer problem analysis, no longer
It is to visually observe and manually calculate so that test data is more accurate and true.
Above is the preferable implementation to the present invention is illustrated, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent variations on the premise of without prejudice to spirit of the invention or replace
Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (8)
- A kind of 1. method for detecting ammeter metering load curve and correcting errors, it is characterised in that comprise the following steps：System receives the instruction of user's input, configures the test parameter and test condition of ammeter；The freeze frequency of all kinds of test datas is set respectively；System starts load record, circulates n times, and wherein N is more than 288, stores the ammeter test data；System reads the load curve stored every time respectively, and compared with preparatory condition,If the load curve is unsatisfactory for preparatory condition, system exports the load curve miscue；If the load curve meets preparatory condition, system rear 288 data in data storage described in retaking of a year or grade, and sentencing successively Whether the data of breaking are qualified, if unqualified, system exports the load curve miscue；If qualified, system circulates M times again, reads load record data 99, and judge the data whether with ammeter meter The data of calculation are consistent, and wherein M is more than 99；If consistent, output surveys categorical data and meets to require；Above-mentioned steps are repeated in, until all kinds of test datas of the ammeter are completed to test.
- 2. the method that detection ammeter metering load curve according to claim 1 is corrected errors, it is characterised in that：The test ginseng Number includes voltage/current/frequency, active power, power factor, total electricity.
- 3. the method that detection ammeter metering load curve according to claim 2 is corrected errors, it is characterised in that：The test ginseng Number also includes the idle and current requirement of four-quadrant.
- 4. the method that detection ammeter metering load curve according to claim 3 is corrected errors, it is characterised in that：The test ginseng Number also includes the record time of load curve.
- 5. the method that detection ammeter metering load curve according to claim 1 is corrected errors, it is characterised in that：The test-strips Part includes test voltage, electric current and phase angle.
- 6. the method that detection ammeter metering load curve according to claim 5 is corrected errors, it is characterised in that：The test electricity Briquetting includes normal voltage and/or critical decompression and/or superpressure.
- 7. the method that the detection ammeter metering load curve according to any one of claim 1 to 6 is corrected errors, it is characterised in that： The preparatory condition includes predeterminated voltage vector, predetermined current vector, power factor.
- A kind of 8. system for detecting ammeter metering load curve and correcting errors, it is characterised in that including：Initial setting module, the instruction of user's input is received for performing step system, configures test parameter and the test of ammeter Condition；The freeze frequency of all kinds of test datas is set respectively；Data test module, start load record for performing step system, circulate n times,Wherein N is more than 288, stores the ammeter test data；System reads the load curve stored every time respectively, and with presetting Condition is compared；Data judge module, if being unsatisfactory for preparatory condition for performing the step load curve, system exports the load Curve miscue；If the load curve meets preparatory condition, system latter 288 times in data storage described in retaking of a year or grade successively Data, and judge whether the data are qualified, if unqualified, system exports the load curve miscue；If qualified, system circulates M times again, reads load record data 99, and judge the data whether with ammeter meter The data of calculation are consistent, and wherein M is more than 99；If consistent, output surveys categorical data and meets to require；Above-mentioned steps are repeated in, until each class testing number of the ammeter According to completion test.
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| CN109061548A (en) * | 2018-10-12 | 2018-12-21 | 山东计保电气有限公司 | High-voltage electric-energy meter entirety on-line testing method |
| CN114167341A (en) * | 2021-11-26 | 2022-03-11 | 国网江苏省电力有限公司南京供电分公司 | Electric energy meter precision misalignment online monitoring and tracking method based on user load characteristic change |
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