CN105510864B - A kind of detection method of electric energy meter error metering - Google Patents
A kind of detection method of electric energy meter error metering Download PDFInfo
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- CN105510864B CN105510864B CN201510839557.9A CN201510839557A CN105510864B CN 105510864 B CN105510864 B CN 105510864B CN 201510839557 A CN201510839557 A CN 201510839557A CN 105510864 B CN105510864 B CN 105510864B
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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
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Abstract
The invention discloses a kind of detection method of electric energy meter error metering, by read into electric energy meter high-precision performance number come with the standard apparent power of error detecting station come compared with, draw power relative error, so as to verify whether error meets standard error value, electric energy meter error Check-Out Time is reduced, improves the accuracy that electric energy meter error is examined.
Description
Technical field
The present invention relates to electricity calculating field, more particularly to a kind of detection method of electric energy meter error metering.
Background technology
Growing with national economy, all trades and professions constantly increase the demand of electricity；Electric energy meter is electrical energy measurement dress
The core component that middle usage quantity is most, coverage is most wide is put, metering load consumption is carry or power supply sends the duty of electric energy
Duty, is settlement of transactions and the Main Basiss of intra-company's economy examination between grid company and client and electricity power enterprise, is to ensure
Electricity market fair, just and open, safeguard the main electric power equipment of electricity transaction both sides' legitimate rights and interests, merchandise in whole electricity consumption
Middle effect is abnormal important.
In face of more and more electric energy meters, how fast and accurately electric energy meter to be examined and determine also becomes most important；And
In the prior art, the scheme for examining electric energy meter error is the electricity to corresponding error dot on electric energy meter successively on error detecting station
Stream, voltage and phase, then error detecting station is by detecting electric energy meter output pulse come the accuracy of error in judgement；The method
For the smaller meter of meter constant, often a dot will measure for a long time, especially more in electric energy meter measurement points
In the case of, long total inspection time often elongates the whole electric energy meter production cycle, wastes excessive cost, is producing in enormous quantities
When waste it is even more serious.
The content of the invention
The purpose of the invention is to provide a kind of inspection for electric energy meter error metering that can quickly improve error judgment speed
Survey method.
The present invention is achieved through the following technical solutions：A kind of detection method of electric energy meter error metering, includes the following steps：
a）The dynamic base of host computer error detecting station, configuration file rise source, and the success of liter source then enters step b, if failure
Then prompting rises source failure；
b）Error detecting station and electric energy meter physical connection, establish link layer connection and are connected with application layer；
c）Active A phase, B phase, C phase performance number is successively read from the register of electric energy meter and is calculated and closes phase power；
d）Highest order using computation chip register byte judges power direction, and e is entered step if canonical, if negative
Then power is reversely plus 1 enters back into step e；
e）Whether detection maximum current is less than Imax, and f is then entered step if more than Imax, is entered step if Imax is less than
g；
f）Whether detection power is to close phase power, if closing phase power, then detects whether power register value is more than
Power_limit/2, more than power_limit/2 then performance number=power register value * 200/（Program internal power coefficient/
10）* 10, enter step h；Less than power_limit/2 then 2000/ program internal power systems of performance number=power register value *
Number * 10, enters step h；If not closing phase power, then detect whether power register value is more than power_limit, be more than
Power_limit then performance number=power register value * 100/（Program internal power coefficient/10）* 10, enter step h；It is less than
Power_limit then 1000/ program internal power coefficient * 10 of performance number=power register value *, enter step h；
g）Whether detection power is to close phase power, if closing phase power, then performance number=power register value * is calculated
2000/ program internal power coefficient/10, enter step h；If not closing phase power, then performance number=power register is calculated
1000/ program internal power coefficient/10 of value *, enter step h；
h）The performance number drawn is assigned to ram variables, is obtained for get；
i）Whether detection power reads completely, j is entered step if complete, if imperfect return to step c；
j）Whether error in judgement check-out console needs repeatedly to read the performance number that get is obtained, and if desired then enters step k, if
L need not then be entered step；
k）The performance number and standard apparent power of get acquisitions are sequential read out, it is each to record 5 times, enter step m；
l）The performance number and standard apparent power of get acquisitions are sequential read out, it is each to record 1 time, enter step o；
m）Detect the performance number read and whether standard apparent power reads 5 times full, the return to step k if 5 times discontented, if full 5
It is secondary, enter step n；
n）5 performance numbers and standard apparent power read remove minimum value and maximum, take the average value of wherein three sub-values；
o）According to the performance number of reading and the standard scale power calculation power error of error detecting station；
p）Detect whether the power error value drawn is less than standard error value, provide power error value and according to whether exceed
Standard error value and give different colors.
Preferably, described program internal power coefficient is INT（1/ power coefficient * 100）, the electric energy meter register model
For 7022E, the scope of the Imax in the step e is 20A to 25A.
The present invention is compared by reading high-precision performance number into electric energy meter come standard apparent power with error detecting station
Compared with power relative error being drawn, so as to verify whether error meets standard error value, when reducing electric energy meter error and examining
Between, improve the accuracy that electric energy meter error is examined.
The invention has the beneficial effects that：1）Using read electric energy meter performance number come instead of output pulse come error in judgement,
Greatly improve the speed for examining error dot so that examine error time to shorten, save cost；2）By reading electric energy meter performance number
With the standard scale power comparing check error of error detecting station, the accuracy of error in judgement is improved.
Brief description of the drawings
Fig. 1 is the flow chart that error is read.
Fig. 2 is the flow chart that electric energy apparent power is read.
Embodiment
Below in conjunction with the accompanying drawings with embodiment, the invention will be further described.
See Fig. 1 to Fig. 2, a kind of detection method of electric energy meter error metering, it is characterised in that include the following steps：
a）The dynamic base of host computer error detecting station, configuration file rise source, and the success of liter source then enters step b, and failure is then
Prompting rises source failure；
b）Error detecting station and electric energy meter physical connection, establish link layer connection and are connected with application layer；
c）Active A phase, B phase, C phase performance number is successively read from the register of electric energy meter and is calculated and closes phase power；
d）Highest order using electric energy meter register byte judges power direction, and e is entered step if canonical, if it is negative then
Power is reversely plus 1 enters back into step e；
e）Whether detection maximum current is less than Imax, and f is then entered step if more than Imax, is entered step if Imax is less than
g；
f）Whether detection power is to close phase power, if closing phase power, then detects whether power register value is more than
Power_limit/2, more than power_limit/2 then performance number=power register value * 200/（Program internal power coefficient/
10）* 10, enter step h；Less than power_limit/2 then 2000/ program internal power systems of performance number=power register value *
Number * 10, enters step h；If not closing phase power, then detect whether power register value is more than power_limit, be more than
Power_limit then performance number=power register value * 100/（Program internal power coefficient/10）* 10, enter step h；It is less than
Power_limit then 1000/ program internal power coefficient * 10 of performance number=power register value *, enter step h；
g）Whether detection power is to close phase power, if closing phase power, then performance number=power register value * is calculated
2000/ program internal power coefficient/10, enter step h；If not closing phase power, then performance number=power register is calculated
1000/ program internal power coefficient/10 of value *, enter step h；
h）The performance number drawn is assigned to ram variables, is obtained for get；
i）Whether detection power reads completely, j is entered step if complete, if imperfect return to step c；
j）Whether error in judgement check-out console needs repeatedly to read the performance number that get is obtained, and if desired then enters step k, if
L need not then be entered step；
k）The performance number and standard apparent power of get acquisitions are sequential read out, it is each to record 5 times, enter step m；
l）The performance number and standard apparent power of get acquisitions are sequential read out, it is each to record 1 time, enter step o；
m）Detect the performance number read and whether standard apparent power reads 5 times full, the return to step k if 5 times discontented, if full 5
It is secondary, enter step n；
n）5 performance numbers and standard apparent power read remove minimum value and maximum, take the average value of wherein three sub-values；
o）According to the performance number of reading and the standard scale power calculation power error of error detecting station；
p）Detect whether the power error value drawn is less than standard error value, provide power error value and according to whether exceed
Standard error value and give different colors.
In present embodiment, described program internal power coefficient is INT（1/ power coefficient * 100）, the electric energy meter deposit
The scope of Imax in device model 7022E, the step e is 20A to 25A.
In present embodiment, the power_limit is power limit.
In present embodiment, in step p, detect whether the power error value drawn is less than standard error value, if being less than
Standard error value then provides power error value and labeled as green, and power error value is then provided if more than standard error value and is marked
For red.
In present embodiment, the performance number drawn in the step g and step f retains two-decimal.
In present embodiment, the electric energy meter is three-phase kilowatt-hour meter, equipped with A phase, B phase, C phase.
In present embodiment, by electric energy meter register read power and calculate go out performance number come with error detecting station
Standard apparent power compare, draw power relative error, so as to verify whether error meets standard error value so that
Electric energy meter error Check-Out Time is reduced in electric energy meter production process, improves the accuracy that electric energy meter error is examined, it is especially miscellaneous big
Cost is saved in the case of batch production.
Protection scope of the present invention includes but not limited to embodiment of above, and protection scope of the present invention is with claims
Subject to, any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (4)
1. a kind of detection method of electric energy meter error metering, it is characterised in that include the following steps：
a）The dynamic base of host computer error detecting station, configuration file rise source, and the success of liter source then enters step b, and failure is then prompted
The failure of the source of liter；
b）Error detecting station and electric energy meter physical connection, establish link layer connection and are connected with application layer；
c）Active A phase, B phase, C phase performance number is successively read from the register of electric energy meter and is calculated and closes phase power；
d）Highest order using electric energy meter register byte judges power direction, and e is entered step if canonical, if negative then power
Reversely plus 1 enters back into step e；
e）Whether detection maximum current is less than Imax, and f is then entered step if more than Imax, and g is entered step if Imax is less than；
f）Whether detection power is to close phase power, if closing phase power, then detects whether power register value is more than power_
Limit/2, more than power_limit/2 then performance number=power register value * 200/（Program internal power coefficient/10）* 10,
Enter step h；Less than power_limit/2 then 2000/ program internal power coefficient * 10 of performance number=power register value *, into
Enter step h；If not closing phase power, then detect whether power register value is more than power_limit, more than power_
Limit then performance number=power register value * 100/（Program internal power coefficient/10）* 10, enter step h；Less than power_
Limit then 1000/ program internal power coefficient * 10 of performance number=power register value *, enter step h；
g）Whether detection power is to close phase power, if closing phase power, then performance number=power register value * 2000/ is calculated
Program internal power coefficient/10, enter step h；If not closing phase power, then performance number=power register value * is calculated
1000/ program internal power coefficient/10, enter step h；
h）The performance number drawn is assigned to ram variables, is obtained for get；
i）Whether detection power reads completely, j is entered step if complete, if imperfect return to step c；
j）Whether error in judgement check-out console needs repeatedly to read the performance number that get is obtained, and k is if desired then entered step, if being not required to
Then to enter step l；
k）The performance number and standard apparent power of get acquisitions are sequential read out, it is each to record 5 times, enter step m；
l）The performance number and standard apparent power of get acquisitions are sequential read out, it is each to record 1 time, enter step o；
m）Detect the performance number read and whether standard apparent power reads 5 times full, the return to step k if 5 times discontented, if 5 times full
Enter step n；
n）5 performance numbers and standard apparent power read remove minimum value and maximum, take the average value of wherein three sub-values；
o）According to the performance number of reading and the standard scale power calculation power error of error detecting station；
p）Detect whether the power error value drawn is less than standard error value, provide power error value and according to whether exceeding standard
Error amount and give different colors.
A kind of 2. detection method of electric energy meter error metering according to claim 1, it is characterised in that：Inside described program
Power coefficient is INT（1/ power coefficient * 100）.
A kind of 3. detection method of electric energy meter error metering according to claim 1, it is characterised in that：The electric energy meter is posted
Storage model 7022E.
A kind of 4. detection method of electric energy meter error metering according to claim 1, it is characterised in that：In the step e
The scope of Imax be 20A to 25A.
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| CN105510864B true CN105510864B (en) | 2018-04-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646325A (en) * | 2016-08-26 | 2017-05-10 | 国家电网公司 | Monitoring method for single-phase intelligent electric energy meter automatic verification production line |
| CN108051770A (en) * | 2017-11-09 | 2018-05-18 | 宁波三星医疗电气股份有限公司 | A kind of correction method of three-phase intelligent electric-energy meter |
| CN109782059B (en) * | 2018-12-24 | 2020-11-10 | 浙江恒业电子有限公司 | Method for accurately measuring reverse active electric energy |
| CN110244142A (en) * | 2019-04-22 | 2019-09-17 | 国网黑龙江省电力有限公司电力科学研究院 | A kind of calibrating installation and method |
| CN110780261B (en) * | 2019-10-31 | 2021-12-24 | 南京国电南自电网自动化有限公司 | Method and system for checking electric quantity acquisition data |
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