CN107918052A - The compensation calculation method of load curve - Google Patents
The compensation calculation method of load curve Download PDFInfo
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- CN107918052A CN107918052A CN201711033468.0A CN201711033468A CN107918052A CN 107918052 A CN107918052 A CN 107918052A CN 201711033468 A CN201711033468 A CN 201711033468A CN 107918052 A CN107918052 A CN 107918052A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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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 compensation calculation method of load curve, including record the time point of power down and the time point re-powered；Using the time point of power down and the time apart from particular point in time is converted into as starting point, and the time point re-powered is scaled the time apart from particular point in time as end point；The record strip number required supplementation between starting point to end point is calculated using acyclic computational methods；Since the power down time point of record, the data of obtained record strip number are disposably supplemented, so as to complete the compensation of load curve.The present invention replaces former cycle calculations method by using acyclic computational methods and calculates the data amount check required supplementation with, the extremely abbreviation realization of function, sentence is succinct, use this algorithm function, properties of product can be greatly lifted, especially need the occasion called repeatedly；Finally, the method for the present invention fast response time, computing is quick and meets that national standard, method are simple and reliable.
Description
Technical field
Present invention relates particularly to a kind of compensation calculation method of load curve.
Background technology
With the development and the improvement of people's living standards of national economy technology, electric energy has become the daily production of people
With essential secondary energy sources in life, production and life to people bring endless facility.
Unique parts of the electric energy meter as electrical energy measurement in electric system, its importance are self-evident.At present, in ammeter
In (charged pool power supply have time clock feature) industry, load curve is that one kind is in daily use and very important part.Load curve
Mean ammeter by the voltage in a certain fixed intervals cycle (such as 1 minute, 5 minutes, 10 minutes) recording electrical meter operational process,
These information are drawn as curve by the information such as electric current, electricity in chronological order.Load curve have the function of it is very more, including side
Customer analysis electricity consumption situation is helped, helps user to verify whether user has situations such as power stealing, analyzes ammeter operating status, and work as
When exception or query occurs in main station system, the load curve in table can be ferreted out to compare and analyze.So now
Society's increasingly flourishing epoch, the stored record of load curve are extremely important.
At present, electric energy meter be with (such as 1 minute, 5 minutes, 10 minutes) a certain fixed intervals cycle storage voltage, electric current,
The data such as electricity, after some time that has a power failure, then after the power is turned on, are mended to ensure the continuity of load curve, it is necessary to calculate after the power is turned on
The load curve record number of power failure is repaid, compensation way is all supplement is by the time point of the record in need in power failure section
One specific value, such as 0 or 1 etc.；Current general calculating process is as follows：
1. ammeter records power down time, form：Time-division date (year recording interval be 00-99, such as 1 day 10 January in 2017
Point 05 minute, then be recorded as 17.01.01.10:05)；
2. ammeter powers on, ammeter time, i.e., the time re-powered after power down are obtained；
3. 0 point divided when power down time (time-division date) Old_Rtc_Time is converted into distance 1 day 0 January in 2000
Clock number (needs to consider leap year situation)；
4. 0 point divided when power-on time (time-division date) New_Rtc_Time is converted into distance 1 day 0 January in 2000
Clock number (needs to consider leap year situation), identical with the conversion method of power down time；
5. step-length is used by starting point of the number of minutes of power down time progressively to be compared for 1, if want gap periods compensation
Points, often run into a gap periods, by compensation points plus 1, iterative cycles are until the number of minutes of power-on time, and round-robin algorithm is most
Power down time is obtained eventually records number to the period load curve to be compensated altogether is powered on；
After 6. load curve record number renewal has compensated, ammeter is continued to run with by the load curve number after compensation.
But above-mentioned round-robin algorithm, due to using step-length progressively to be compared for 1 circulation, take very long, monopolize MCU,
Speed responsive is slow, when serious program operation will be caused " false crash " phenomenon of card machine occur, especially power off time span is big, non-
Chang Mingxian.Such as, it is assumed that power down time is 17 year 18 minutes January 1 day 2 point, and power-on time is 17 year 08 minute May 20 day 8 point, load
In 1 minute storage cycle of curve, can be scaled (17*365+ 17 year 18 minutes January 1 day 2 point by power down time by the above process
5+1) * 24*60+2*60+18=8943978 (minute), similarly power-on time is to be scaled (17* 17 year 08 minute May 20 day 8 point
365+5+31+28+31+30+20) * 24*60+8*60+8=9144488 (minute) are, it is necessary to which the number of circulation is：End point minute
Number-starting point the number of minutes=9144488-8943978=200510 times.When the memory gap cycle is 1 minute, compensation
The record number of load curve is equal to 200510；Similarly assume the memory gap cycle to be revised as 5 minutes, also to circulate 200510
Secondary, the record number of the load curve of compensation is equal to 40102.Program repeat is needed to exist from the point of view of cycle-index 200510 times is needed
This runs always, very time-consuming, it will " false crash " phenomenon occurs, is not suitable with for ammeter compensation calculation.
The content of the invention
It is an object of the invention to provide a kind of fast response time, computing is quick and meets that national standard, method simply may be used
The compensation calculation method of the load curve leaned on.
The compensation calculation method of this load curve provided by the invention, includes the following steps：
S1. the time point of electric energy meter record power down and the time point re-powered；
S2. the time point of power down is converted into the time apart from particular point in time as starting point by electric energy meter, while will weight
The time point newly powered on is scaled the time apart from particular point in time as end point；
S3. according to the obtained starting points of step S3 and end point, calculated using acyclic computational methods from starting point to knot
The record strip number required supplementation between spot；
S4. since the power down time point of record, the disposable data for supplementing the record strip number that step S3 is obtained, so that complete
Into the compensation of load curve.
Record time point described in step S1 include record power down and the year, month, day re-powered, when and divide.
0 divides when particular point in time described in step S2 is 1 day 0 January in 2000.
The record required supplementation between starting point to end point is calculated using acyclic computational methods described in step S3
Bar number, specially calculates record strip number using following steps：
A. the size of starting point and end point is judged, so as to judge whether starting point and end point are wrong；
B. it is starting point+1 to record the first intermediate variable, while it is end point to record the second intermediate variable；
C. difference of the 3rd intermediate variable for the second intermediate variable and the first intermediate variable is recorded；
Whether the memory gap cycle for D. judging load curve is 1：If the memory gap cycle of load curve is 1,
It is the 3rd intermediate variable+1 to the record strip number for finally needing to compensate；
If E. the memory gap cycle of load curve be not 1, the 4th intermediate variable of record for the 3rd intermediate variable divided by
Memory gap cycle and rounding；The 5th intermediate variable is recorded at the same time as the first intermediate variable divided by memory gap cycle and remainder,
The 6th intermediate variable is recorded as the second intermediate variable divided by memory gap cycle and remainder；
F. judge whether the 5th intermediate variable is more than whether the 6th intermediate variable or the 5th intermediate variable are 0：
If it is 0 that the 5th intermediate variable, which is more than the 6th intermediate variable or the 5th intermediate variable, finally needed to compensate
Record strip number be the 4th intermediate variable+1, the record strip number for otherwise finally needing to compensate is the 4th intermediate variable.
The compensation calculation method of this load curve provided by the invention, original is replaced by using acyclic computational methods
Cycle calculations method, there is good versatility, can consult and use, has good in similar requirement in different fields
Adaptability；And the data amount check that requires supplementation with calculated using acyclic algorithm, and the extremely abbreviation realization of function, sentence letter
It is clean, using this algorithm function, properties of product can be greatly lifted, especially need the occasion called repeatedly；Finally, it is of the invention
Method fast response time, computing is quick and meets that national standard, method are simple and reliable.
Brief description of the drawings
Fig. 1 is the method flow diagram of the method for the present invention.
Fig. 2 is the flow chart of the acyclic algorithm in the method for the present invention.
Embodiment
It is the method flow diagram of the method for the present invention as shown in Figure 1：The compensation calculation of this load curve provided by the invention
Method, includes the following steps：
S1. the time point of electric energy meter record power down and the time point re-powered；Record time point include record power down and
The year, month, day that re-powers, when and point, for example power down point is 05 minute January 1 day 10 point in 2017, then is recorded as
17.01.01.10:05；
S2. the time point of power down is converted into the time apart from particular point in time as starting point by electric energy meter, while will weight
The time point newly powered on is scaled the time apart from particular point in time as end point；Particular point in time can use existing general
Time point, i.e. 1 day 0 January in 2000 when 0 divide；Using power down time point apart from particular point in time the number of minutes as starting point, with
Time point is re-powered apart from the number of minutes at feature time point as end point；
S3. according to the obtained starting points of step S3 and end point, calculated using acyclic computational methods from starting point to knot
The record strip number required supplementation between spot；Specially record strip number is calculated using following steps：
A. the size of starting point and end point is judged, so as to judge whether starting point and end point are wrong；
B. it is starting point+1 to record the first intermediate variable, while it is end point to record the second intermediate variable；
C. difference of the 3rd intermediate variable for the second intermediate variable and the first intermediate variable is recorded；
Whether the memory gap cycle for D. judging load curve is 1：If the memory gap cycle of load curve is 1,
It is the 3rd intermediate variable+1 to the record strip number for finally needing to compensate；
If E. the memory gap cycle of load curve be not 1, the 4th intermediate variable of record for the 3rd intermediate variable divided by
Memory gap cycle and rounding；The 5th intermediate variable is recorded at the same time as the first intermediate variable divided by memory gap cycle and remainder,
The 6th intermediate variable is recorded as the second intermediate variable divided by memory gap cycle and remainder；
F. judge whether the 5th intermediate variable is more than whether the 6th intermediate variable or the 5th intermediate variable are 0：
If it is 0 that the 5th intermediate variable, which is more than the 6th intermediate variable or the 5th intermediate variable, finally needed to compensate
Record strip number be the 4th intermediate variable+1, the record strip number for otherwise finally needing to compensate is the 4th intermediate variable；
S4. since the power down time point of record, the disposable data for supplementing the record strip number that step S3 is obtained, so that complete
Into the compensation of load curve.
From the above it can be seen that, it is assumed that power down time is 17 year 18 minutes January 1 day 2 point, and power-on time is in May, 17
20 days 8 points 08 minute, 1 minute storage cycle of load curve, pass through the present invention acyclic computational methods processing, the value of calculating
When the memory gap cycle is 1 minute, the record number of the load curve of compensation is equal to 200510；Similarly assume storage
Gap periods are revised as 5 minutes, and the record number of the load curve of compensation is equal to 40102.It can be seen that the method for the present invention and existing
The bar number for having the supplementary data that technology is calculated is consistent, but the method for the present invention uses acyclic computational methods, journey
Only needs order performs sequence, without circulation, therefore only needs the calculating of simple several steps to draw, is greatly shortened
Run time.
With the MCU master chips of certain famous brand name, there are following data in 24M dominant frequency actual tests：
Former cycle calculations method is setting span for 8 months, it is necessary to which cycle-index is about 8*30*24*60=345600
Secondary, program, which calculates elapsed time, about needs 26 seconds, and former cycle calculations method is setting span for 12 months, it is necessary to which cycle-index is big
About 365*24*60=525600 times, program, which calculates elapsed time, about needs 48 seconds.Using acyclic computational methods, program
The elapsed time of above-mentioned time span is calculated within 2mS, is influenced from time span, compensation numerical value can be computed correctly out,
Do not influence the normal operation of program, solve ammeter and calculate that time-consuming when compensating load curve, improve response speed, no matter when
Between span it is much, occur without card machine pause " false crash " phenomenon so that the smooth operations of MCU, be greatly shortened calculating operation when
Between, significant effect.
Claims (4)
1. a kind of compensation calculation method of load curve, includes the following steps：
S1. the time point of electric energy meter record power down and the time point re-powered；
S2. the time point of power down is converted into the time apart from particular point in time as starting point by electric energy meter, at the same will again on
The time point of electricity is scaled the time apart from particular point in time as end point；
S3. according to the obtained starting points of step S3 and end point, calculated using acyclic computational methods from starting point to end point
Between the record strip number that requires supplementation with；
S4. since the power down time point of record, the disposable data for supplementing the record strip number that step S3 is obtained, so as to complete to bear
The compensation of lotus curve.
2. the compensation calculation method of load curve according to claim 1, it is characterised in that during record described in step S1
Between point include record power down and re-power year, month, day, when and minute.
3. the compensation calculation method of load curve according to claim 1, it is characterised in that during specific described in step S2
Between point 0 minute when being 1 day 0 January in 2000.
4. the compensation calculation method of the load curve according to one of claims 1 to 3, it is characterised in that described in step S3
The record strip number required supplementation between starting point to end point is calculated using acyclic computational methods, specially using following step
It is rapid to calculate record strip number：
A. the size of starting point and end point is judged, so as to judge whether starting point and end point are wrong；
B. it is starting point+1 to record the first intermediate variable, while it is end point to record the second intermediate variable；
C. difference of the 3rd intermediate variable for the second intermediate variable and the first intermediate variable is recorded；
Whether the memory gap cycle for D. judging load curve is 1：If the memory gap cycle of load curve is 1, obtain most
The record strip number for needing to compensate eventually is the 3rd intermediate variable+1；
If E. the memory gap cycle of load curve is not 1, the 4th intermediate variable of record is the 3rd intermediate variable divided by storage
Gap periods and rounding；The 5th intermediate variable is recorded at the same time as the first intermediate variable divided by memory gap cycle and remainder, record
6th intermediate variable is the second intermediate variable divided by memory gap cycle and remainder；
F. judge whether the 5th intermediate variable is more than whether the 6th intermediate variable or the 5th intermediate variable are 0：
If it is 0 that the 5th intermediate variable, which is more than the 6th intermediate variable or the 5th intermediate variable, obtain finally needing the note compensated
Record article number is the 4th intermediate variable+1, and the record strip number for otherwise finally needing to compensate is the 4th intermediate variable.
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| CN109490618A (en) * | 2018-09-30 | 2019-03-19 | 宁波三星智能电气有限公司 | A kind of amended record method of load curves of electric energy meter |
| CN109490611A (en) * | 2018-10-29 | 2019-03-19 | 宁波三星智能电气有限公司 | A kind of time counting method of embedded device |
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