CN109407042A - A kind of method of calibration of intelligent electric meter - Google Patents
A kind of method of calibration of intelligent electric meter Download PDFInfo
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- CN109407042A CN109407042A CN201811615934.0A CN201811615934A CN109407042A CN 109407042 A CN109407042 A CN 109407042A CN 201811615934 A CN201811615934 A CN 201811615934A CN 109407042 A CN109407042 A CN 109407042A
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- Prior art keywords
- calibration
- chip
- value
- intelligent electric
- electric meter
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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 present invention relates to intelligent electric meter fields, disclose a kind of method of calibration of intelligent electric meter, including, obtain facility information；Carry out direct current correction；Carry out capability correction；Check results verifying；It determines and verifies final information；Remove verification residual risk.The present invention has the effect of improving working efficiency.
Description
Technical field
The present invention relates to the technical fields of intelligent electric meter, more particularly, to a kind of method of calibration of intelligent electric meter.
Background technique
Currently, intelligent electric meter is the intelligent terminal of smart grid, intelligent electric meter is in addition to having traditional electric energy meter basic electricity
Other than the function of measuring of amount, in order to adapt to smart grid and new energy also had using it two-way a variety of rate function of measuring,
The intelligentized functions such as user terminal control function, the bidirectional data communication function of plurality of data transmission modes, anti-stealing electricity function.
Existing intelligent electric meter needs to carry out accurate verification processing to intelligent electric meter before user terminal is installed and used,
When carrying out accurate verification processing, worker carries out the measurement of every numerical value by a variety of detecting instruments to intelligent electric meter, to complete
Accurate verification processing.
Prior art among the above have the following deficiencies: worker to intelligent electric meter carry out accurate verification processing when,
Every numerical value of intelligent electric meter is measured by a variety of detecting instruments, school is carried out to intelligent electric meter by every numerical value
Test, worker will carry out the calculating of the record and numerical value of more numerical value when verifying so that entire checking procedure compared with
Be it is cumbersome, reduce verification efficiency.
Summary of the invention
In view of the deficienciess of the prior art, having and improving the invention reside in a kind of method of calibration of intelligent electric meter is provided
The effect of working efficiency.
To achieve the above object, the present invention provides the following technical scheme that a kind of method of calibration of intelligent electric meter, including,
Obtain facility information；
Carry out direct current correction；
Carry out capability correction；
Check results verifying；
It determines and verifies final information；
Remove verification residual risk.
By using above-mentioned technical proposal, facility information is first obtained, to recognize the specific of equipment by facility information
Situation uses corresponding correcting mode to equipment；Then direct current correction and capability correction are carried out, in direct current correction and capability correction
After the completion, check results are verified, and determines the final information of verification, to judge whether verification is accurate, and equipment is
It is no to complete accurate checking treatment；Verification residual risk is purged after the completion of verification, after so that verification is not influenced equipment
It using, worker only needs to verify check results when verifying, so that checking procedure is relatively simple, side
Just worker operation improves verification efficiency.
The present invention is further arranged to: the acquisition facility information includes,
Obtain chip model information；
Obtain the default parameters initial value of chip；
Obtain initial PWM light modulation ratio value.
By using above-mentioned technical proposal, the type information of chip is first obtained, calibrating mode is determined by chip model, led to
It crosses calibrating mode and obtains default parameters initial value and PWM light modulation ratio value, so that verification mode meets chip model.
The present invention is further arranged to: the default parameters initial value include voltage value, current value, power factor (PF), frequency,
Active power, reactive power, apparent energy and electricity.
By using above-mentioned technical proposal, by the way that default parameters initial value is arranged, so that electrician need not be again to voltage value, electricity
Flow valuve, power factor (PF), frequency, active power, reactive power, apparent energy and electricity carry out input in every particular, to improve
Working efficiency.
The present invention is further arranged to: the direct current, which corrects, includes,
Obtain ADC operating voltage initial value；
Reset the initial measurement of chip；
The practical electric parameter of load is read by chip；
The calibration electric parameter of load is read by electricity meter；
Compare practical electric parameter and calibration electric parameter；
Determination deviation coefficient；
Chip is reset by deviation factor；
Practical electric parameter is reacquired by chip.
By using above-mentioned technical proposal, ADC operating voltage initial value is obtained, then initial measurement is zeroed out,
Then the practical electric parameter that load is read by chip, the calibration electric parameter of load is read by electricity meter, is passed through
The comparison determination deviation coefficient of the two, sets chip by deviation factor, to calibrate to chip, then calibrates
Chip afterwards continues to read the practical electric parameter of load, calibrates to chip, so that the load electrical parameter that chip obtains
It is more accurate.
The present invention is further arranged to: the initial measurement includes voltage value, current value, power factor (PF), frequency, active
Power, reactive power, apparent energy and electricity.
By using above-mentioned technical proposal, initial measurement and default parameters initial value are substantially the same, can pass through acquisition
Default parameters initial value sets initial measurement, to facilitate the operation of worker, improves verification efficiency.
The present invention is further arranged to: the practical electric parameter and calibration electric parameter include load voltage value and
The current value of load.
By using above-mentioned technical proposal, voltage value and current value are capable of the working condition of more intuitive reaction load,
The some of the operating parameters of load is calculated simultaneously also by voltage value and current value, so that worker be made conveniently to understand
To load working condition and improve verification efficiency.
The present invention is further arranged to: the capability correction includes,
Determine active power and reactive power；
Active power corrected value is determined by reactive power；
Active power is corrected by active power corrected value.
By using above-mentioned technical proposal, active power is determined by calculation, the numerical value of reactive power is obtained, by idle
Power determines active power corrected value, is corrected by active power corrected value to active power, to improve feedback result
Accuracy.
The present invention is further arranged to: the check results, which are verified, includes,
Light modulation setting is carried out to load according to initial PWM light modulation ratio value；
Change initial PWM light modulation ratio value；
Light modulation setting is carried out to load according to the PWM light modulation ratio value after change；
Obtain the practical electric parameter that chip is read；
Determine the test accuracy of chip.
By using above-mentioned technical proposal, ratio value is dimmed by PWM, Dimming operation is carried out to load, read by chip
Practical electric parameter, by the comparison of practical electric parameter and the electric parameter of standard, so that it is determined that the test accuracy of chip,
Judge whether the calibration of chip is correct by test accuracy, to realize that calibration result is fed back.
The present invention is further arranged to: the test accuracy passes through accurate electricity meter and determines.
By using above-mentioned technical proposal, test is synchronized by accurate electricity meter, with accurate electricity meter
As standard, thus enable electrician more intuitively determine chip calibration it is no there are problems, to improve the calibration of chip
Accuracy.
The present invention is further arranged to: the removing verification residual risk includes that operation is zeroed out to chip.
By using above-mentioned technical proposal, operation is zeroed out to chip, so that removing the residual data of chip interior makes
Residual data is obtained to be not easy to influence the normal work in intelligent electric meter later period.
In conclusion the invention has the following advantages:
It is verified by carrying out direct current correction and capability correction, and to check results, then determines and verify final information and remove school
Residual risk is tested, so that the checking procedure of chip is more accurate, while verification being made to be not easy to influence the fortune after intelligent electric meter again
Row, worker need to only determine that the final information of verification can determine whether verification is completed, improve verification efficiency.
Detailed description of the invention
Fig. 1 is step figure of the invention.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
It referring to Fig.1, is a kind of method of calibration of intelligent electric meter disclosed by the invention, comprising:
S1: facility information is obtained.The type information for first obtaining chip in intelligent electric meter determines verification by the type information of chip
Mode obtains items default parameters initial value needed for chip by verification mode, default parameters initial value include power because
Element, frequency, active power, reactive power, apparent energy and electricity then obtain initial PWM light modulation ratio value.
S2: direct current correction is carried out.ADC operating voltage initial value is first obtained, the initial measurement in chip is zeroed out,
Initial measurement is identical as default parameters initial value case, including power factor (PF), frequency, active power, reactive power, apparent energy
And electricity.Then the practical electric parameter of load is read by chip, practical electric parameter includes the voltage value and electric current of load
Value reads the calibration electric parameter of load by electricity meter, and calibration electric parameter includes voltage value and current value.To reality
Electric parameter and calibration electric parameter compare, so that deviation factor is determined by calculation, then by deviation factor to core
Piece is set again, reacquires practical electric parameter by chip.Worker can be to practical electric parameter and calibration electricity at this time
Gas parameter compares, and between the two without large error, then illustrates that direct current correction is completed.
S3: capability correction is carried out.On the basis of current value after the completion of direct current calibration, the active power of computational load, so
Reactive power numerical value is obtained afterwards, active power corrected value is determined by reactive power numerical value, then passes through active power corrected value
Active power is corrected, to complete the correction to power.
S3: check results verifying.Ratio value is dimmed by PWM initial before, and light modulation setting is carried out to load, it is then right
Initial PWM light modulation ratio value is changed, and the brightness of load is made to change, the practical electric parameter obtained by chip,
Worker passes through the calibration electric parameter that accurate electricity meter reads load simultaneously, so that it is determined that the test accuracy of chip.
S4: it determines and verifies final information.Worker obtains the practical electric parameter that chip obtains with accurate electricity meter
Calibration electric parameter be compared, if error is within the specified scope existing for the two, illustrate chip verification complete, if two
Error existing for person within the specified scope, does not then illustrate the verification failure of chip, need to re-start verification.
S5: verification residual risk is removed.Chip is zeroed out, initial stage all verification residual risks do not influence intelligent electricity
The later period of table uses.
The implementation principle of the present embodiment are as follows: first the type information of chip is obtained, is determined and is verified by type information
Mode, and obtain the default parameters initial value and initial PWM light modulation ratio value of chip.Then it reads in default parameters initial value
Initial Voltage Value, pressure clearing is carried out to initial measurement, is read out by current value and voltage value of the chip to load,
It is read out by actual current value and voltage value of the accurate electricity meter to load, is deviated by the comparison calculating of the two
Then coefficient carries out the setting of deviation factor to chip, chip is made to re-read the current value and voltage value of load.In current value
On the basis of active power is calculated, active power corrected value is then determined by reactive power, passes through active power school
Positive value is corrected active power.Ratio value is dimmed by initial PWM, light modulation setting is carried out to load, and PWM is dimmed
Ratio value is changed, and chip detects the voltage value and current value of load, and accurate electricity meter is also to the electricity of load
Pressure value and current value are detected, and determine whether capability correction is accurate by the comparison of the two.After the completion of all inspections and detection,
Chip is zeroed out, so that the later stage work of intelligent electric meter be made not to be affected.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of method of calibration of intelligent electric meter, it is characterized in that: include,
Obtain facility information；
Carry out direct current correction；
Carry out capability correction；
Check results verifying；
It determines and verifies final information；
Remove verification residual risk.
2. the method for calibration of a kind of intelligent electric meter according to claim 1, it is characterized in that: the acquisition facility information packet
It includes,
Obtain chip model information；
Obtain the default parameters initial value of chip；
Obtain initial PWM light modulation ratio value.
3. the method for calibration of a kind of intelligent electric meter according to claim 2, it is characterized in that: the default parameters initial value packet
Include voltage value, current value, power factor (PF), frequency, active power, reactive power, apparent energy and electricity.
4. a kind of method of calibration of intelligent electric meter according to claim 1, it is characterized in that: direct current correction includes,
Obtain ADC operating voltage initial value；
Reset the initial measurement of chip；
The practical electric parameter of load is read by chip；
The calibration electric parameter of load is read by electricity meter；
Compare practical electric parameter and calibration electric parameter；
Determination deviation coefficient；
Chip is reset by deviation factor；
Practical electric parameter is reacquired by chip.
5. the method for calibration of a kind of intelligent electric meter according to claim 4, it is characterized in that: the initial measurement includes electricity
Pressure value, current value, power factor (PF), frequency, active power, reactive power, apparent energy and electricity.
6. the method for calibration of a kind of intelligent electric meter according to claim 4, it is characterized in that: the practical electric parameter and school
Quasi- electric parameter includes the voltage value of load and the current value of load.
7. a kind of method of calibration of intelligent electric meter according to claim 1, it is characterized in that: the capability correction includes,
Determine active power and reactive power；
Active power corrected value is determined by reactive power；
Active power is corrected by active power corrected value.
8. the method for calibration of a kind of intelligent electric meter according to claim 1, it is characterized in that: check results verifying packet
It includes,
Light modulation setting is carried out to load according to initial PWM light modulation ratio value；
Change initial PWM light modulation ratio value；
Light modulation setting is carried out to load according to the PWM light modulation ratio value after change；
Obtain the practical electric parameter that chip is read；
Determine the test accuracy of chip.
9. the method for calibration of a kind of intelligent electric meter according to claim 8, it is characterized in that: the test accuracy passes through essence
Cipher telegram tester determines.
10. the method for calibration of a kind of intelligent electric meter according to claim 1, it is characterized in that: removing verification residual letter
Breath includes that operation is zeroed out to chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811615934.0A CN109407042B (en) | 2018-12-27 | 2018-12-27 | Intelligent electric meter calibration method |
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| CN201811615934.0A CN109407042B (en) | 2018-12-27 | 2018-12-27 | Intelligent electric meter calibration method |
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| CN109407042A true CN109407042A (en) | 2019-03-01 |
| CN109407042B CN109407042B (en) | 2021-10-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098923A (en) * | 2020-09-28 | 2020-12-18 | 怀化建南机器厂有限公司 | Smart electric meter calibration method and device |
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| JPH10326677A (en) * | 1997-05-26 | 1998-12-08 | Matsushita Electric Works Ltd | Dimming control system |
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| CN106918799A (en) * | 2017-04-12 | 2017-07-04 | 华北电力科学研究院有限责任公司 | Electric energy meter remote checking method and system |
| CN108562864A (en) * | 2018-02-27 | 2018-09-21 | 杭州海兴电力科技股份有限公司 | The method that single-point power method calibrates electric energy meter error |
| CN208063533U (en) * | 2018-04-08 | 2018-11-06 | 深圳市德帮能源科技有限公司 | Power carrier type load control circuit |
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2018
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Patent Citations (6)
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| JPH10326677A (en) * | 1997-05-26 | 1998-12-08 | Matsushita Electric Works Ltd | Dimming control system |
| CN102958255A (en) * | 2012-10-31 | 2013-03-06 | 施耐德电气东南亚(总部)有限公司 | Power supply method for dimming system and dimming system |
| CN203069635U (en) * | 2013-01-21 | 2013-07-17 | 肖恒贞 | Telemetering electric meter with dimming circuit |
| CN106918799A (en) * | 2017-04-12 | 2017-07-04 | 华北电力科学研究院有限责任公司 | Electric energy meter remote checking method and system |
| CN108562864A (en) * | 2018-02-27 | 2018-09-21 | 杭州海兴电力科技股份有限公司 | The method that single-point power method calibrates electric energy meter error |
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| CN112098923A (en) * | 2020-09-28 | 2020-12-18 | 怀化建南机器厂有限公司 | Smart electric meter calibration method and device |
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| CN109407042B (en) | 2021-10-26 |
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