CN105929225A - Method for acquiring on-grid and off-grid electric quantities - Google Patents
Method for acquiring on-grid and off-grid electric quantities Download PDFInfo
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- CN105929225A CN105929225A CN201610561981.6A CN201610561981A CN105929225A CN 105929225 A CN105929225 A CN 105929225A CN 201610561981 A CN201610561981 A CN 201610561981A CN 105929225 A CN105929225 A CN 105929225A
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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
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Abstract
The invention discloses a method for acquiring on-grid and off-grid electric quantities. The method includes reading all gauges on circuits from automatic metering systems in each preset time interval once to obtain reading data of all the gauges; computing the sums of forward electric quantities of all the gauges and the sums of reverse electric quantities of all the gauges; comparing the sums of the forward electric quantities to the sums of the reverse electric quantities and computing the on-grid electric quantities and the off-grid electric quantities according to comparison results. The forward electric quantities of all the gauges and the reverse electric quantities of all the gauges are acquired in preset time. The method has the advantage that the accuracy of the obtained on-grid and off-grid electric quantities can be enhanced by the aid of the method.
Description
Technical field
The present invention relates to technical field of electric power, particularly relate to off line electricity acquisition methods in one.
Background technology
At present, power plant's electricity volume and off line electricity clearing critical point are the most all to arrange by assets separation, a kind of situation
It is typically all to be located at power plant to uprise side and take online, off line electricity mutual as electricity clearing during clearing critical point, normal power generation
Electricity volume of only sending after counteracting settles accounts the online electricity charge, and full factory shuts down during not generating electricity and can not cancel each other with net electricity；Another
Kind of situation is that clearing critical point is located at power plant and sends on circuit, by having more than two that sends circuit and power plant's bus to pass through trend
Cannot calculate, can only be by the forward in the cycle of checking meter, reverse electric quantity accumulation, after aggregate-value is supported mutually, depending on positive and negative values as settling accounts
Electricity volume or off line electricity, calculate relatively rough, unreasonable.
Above-mentioned two situations are all failed to measure online, off line electricity the most respectively by current monthly meter reading method.
Under normal operating mode, and when not passing through trend on power plant's bus, it is arranged on the energy metering dress that power plant sends on circuit
Put forward, reverse electricity can accurately measure online and off line electricity, but actually due between transformer station or the power plant that has
Can be surfed the Net by other power plant (or unit) bus, now will pass through tide as producing on power plant's bus in hinge power station
Stream, and energy metering device cannot be distinguished by passing through electricity, electricity volume and off line electricity, causes cannot accurately drawing online electricity
Amount, off line electricity, it is impossible to the problem of measuring power settlement of transactions accurate, fair and reasonable.
Summary of the invention
It is an object of the invention to provide off line electricity acquisition methods in one, to realize the upper off line electricity of lifting acquisition
Accuracy.
For solving above-mentioned technical problem, the present invention provides off line electricity acquisition methods in one, and the method includes:
In each prefixed time interval, to the gauge table meter reading on the line of all dresses from metering automation system
Once, it is thus achieved that the meter reading data of all gauge tables；
The summation of the forward electricity of all gauge tables obtained in calculating Preset Time and the reverse electricity of all gauge tables
Summation；
The summation of contrast forward electricity and the summation of reverse electricity, calculate electricity volume and off line electricity according to comparing result
Amount.
Preferably, in the meter reading data of gauge table from the output of power plant direction for forward electricity, to power plant's direction input
For reverse electricity.
Preferably, described in each prefixed time interval, from metering automation system to all dresses on the line
Gauge table meter reading once, it is thus achieved that the meter reading data of all gauge tables, including:
Each prefixed time interval j from metering automation system, to n the gauge table meter reading on the line of all dresses
Once, obtaining X1 to Xn, Y1 to Yn data and preserve, n is more than or equal to 2.
Preferably, the summation of the forward electricity of all gauge tables obtained in described calculating Preset Time and all gauge tables
The summation of reverse electricity, including:
To a prefixed time interval j, obtain forward electricity Xi, the size of reverse electricity Yi, i=1,2 ..., n；N is meter
The number of scale, n is more than or equal to 2；
The summation of the forward electricity Xi obtained in calculating each prefixed time interval jAnd the summation of reverse electricity Yi
Preferably, the summation of described contrast forward electricity and the summation of reverse electricity, calculate online electricity according to comparing result
Amount and off line electricity, including:
Calculate the summation of forward electricity and difference Q of reverse electricity summationj,
Judge difference QjPower direction of transfer, according to difference QjPower direction of transfer analysis obtain electricity volume Sj and
Off line electricity Cj.
Preferably, according to difference QjPower direction of transfer analysis obtain electricity volume Sj and off line electricity Cj, including:
If Qj＞ 0, power direction of transfer is output, electricity volume Sj=| Qj|, off line electricity Cj=0；
If Qj=0, electricity all Line Flows electricity, electricity volume Sj=0, off line electricity Cj=0；
If Qj＜ 0, power direction of transfer is input, electricity volume Sj=0, off line electricity Cj=| Q j |.
Preferably, described method also includes:
In each prefixed time interval, meter reading is once, until a billing cycle terminates, number of times of checking meter is that m, m are more than
Equal to 2；
According to electricity volume Sj in a billing cycle, off line electricity Cj, the calculating accounting period copies and sees electricity volume, clearing
Phase copies and sees below net electricity.
Preferably, the accounting period copies and seesAccounting period copies and sees
Off line electricity acquisition methods in one provided by the present invention, in each prefixed time interval, from metering certainly
In dynamicization system to the gauge table meter reading on the line of all dresses once, it is thus achieved that the meter reading data of all gauge tables；Calculate and preset
The summation of the forward electricity of all gauge tables obtained in the time and the summation of the reverse electricity of all gauge tables；Contrast forward electricity
The summation of amount and the summation of reverse electricity, calculate electricity volume and off line electricity according to comparing result.Visible, utilize metering automatically
Change system short time interval meter reading function once, the summation of contrast forward electricity and the summation of reverse electricity, according to contrast knot
Fruit calculates electricity volume and off line electricity, and in such time in counting period, forward electricity and the reverse electricity of gauge table cancel each other
After the sign of clean power transmission amount, i.e. differentiate the direction that power transmits, discriminate whether that full factory shuts down with this and do not generate electricity, pass through tide
Stream, by supporting mutually rear to forward and reverse electricity that adds up at times as the online of final clearing, off line electricity, checks meter once than monthly
The metering clearing carrying out differentiating are the most accurate, reasonable, fair, realize upper off line electricity accurate of lifting acquisition in this way
Property.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
Fig. 1 is the flow chart of a kind of off line electricity acquisition methods provided by the present invention.
Detailed description of the invention
The core of the present invention is to provide off line electricity acquisition methods in one, it is achieved promote the standard of the upper off line electricity obtained
Really property.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Refer to the flow chart that Fig. 1, Fig. 1 are a kind of off line electricity acquisition methods provided by the present invention, the method bag
Include:
S11: in each prefixed time interval, to all dresses gauge table on the line from metering automation system
Meter reading is once, it is thus achieved that the meter reading data of all gauge tables；
S12: calculate the summation of the forward electricity of the interior all gauge tables obtained of Preset Time and the reverse of all gauge tables
The summation of electricity；
S13: the summation of summation and the reverse electricity of contrast forward electricity, calculates electricity volume and off line according to comparing result
Electricity.
Visible, utilize metering automation system short time interval meter reading function once, the summation of contrast forward electricity with
The reversely summation of electricity, calculates electricity volume and off line electricity, gauge table in such time in counting period according to comparing result
Forward electricity and reverse electricity cancel each other after the sign of clean power transmission amount, i.e. differentiate the direction that power transmits, differentiate with this
Full factory shuts down and does not generates electricity, passes through trend, by supporting rear mutually to upper as final clearing of forward and reverse electricity that adds up at times
Net, off line electricity, the most accurate, reasonable, more fair than the monthly metering clearing once carrying out differentiating of checking meter, realize in this way
Promote the accuracy of the upper off line electricity obtained.
Concrete, in the meter reading data of gauge table from power plant's direction output for forward electricity, to power plant's direction input
For reverse electricity.
Wherein, the process of step S11 particularly as follows: from metering automation system each prefixed time interval j, to all
Dress n gauge table meter reading on the line once, obtains X1 to Xn, Y1 to Yn data and preserves, and n is more than or equal to 2.
Step S12 preferably employs following steps and realizes:
S21: to a prefixed time interval j, obtains forward electricity Xi, the size of reverse electricity Yi, i=1, and 2 ..., n；n
For the number of gauge table, n is more than or equal to 2；
S22: the summation of the forward electricity Xi obtained in calculating each prefixed time interval jAnd reverse electricity Yi
Summation
Step S13 preferably employs following steps and realizes:
S31: the summation of summation and the reverse electricity of contrast forward electricity, calculates electricity volume and off line according to comparing result
Electricity, including:
S32: calculate the summation of forward electricity and difference Q of reverse electricity summationj,
S33: judge difference QjPower direction of transfer, according to difference QjPower direction of transfer analysis obtain electricity volume
Sj and off line electricity Cj.
Foundation difference Q in step S33jPower direction of transfer analysis obtain electricity volume Sj and the mistake of off line electricity Cj
Journey preferably employs following steps and realizes:
S41: if Qj＞ 0, power direction of transfer is output, electricity volume Sj=| Qj|, off line electricity Cj=0；
S42: if Qj=0, electricity all Line Flows electricity, electricity volume Sj=0, off line electricity Cj=0；
S43: if Qj＜ 0, power direction of transfer is input, electricity volume Sj=0, off line electricity Cj=| Q j |.
Concrete, said method is further comprising the steps of:
S14: meter reading is once in each prefixed time interval, until a billing cycle terminates, number of times of checking meter is m, m
More than or equal to 2；
S15: according to electricity volume Sj in a billing cycle, off line electricity Cj, calculate the accounting period copy see electricity volume,
Accounting period copies and sees below net electricity.
Wherein, the accounting period copies and seesAccounting period copies and sees
Said method utilizes metering automation system to read the function of gauge table in real time, and calculating forward, reverse electricity are mutual
The sign of the clean power transmission amount after counteracting, determines the direction that this short term power transmits at that time, discriminates whether that full factory shuts down not with this
Generating, pass through trend, see online electricity to the forward electricity that adds up at times, reverse electricity as copying of final clearing by supporting mutually rear
Amount, copy and see below net electricity.
Based on said method, detailed, specific implementation process is as follows:
Step 1: the expression number electricity arranging gauge table is output as forward electricity X from power plant direction, to power plant's direction input
For reverse electricity Y.
Step 2: obtain and preserve data.
Each short time interval j from metering automation system, the most every five minutes, to all dresses n on the line
Individual gauge table meter reading once, obtains X1j to Xnj, Y1j to Ynj data and preserves.
Step 3: comparing.
To a short time every j, contrast respectively the forward electricity Xij of acquisition, reverse electricity Yij size (i=1,
2 ..., n), the direction transmitted according to the size differentiation power of data:
If Q is j > 0, Q j is on the occasion of, general power direction was output at that time, electricity volume Sj=| Q j |, off line electricity
Cj=0；
If Q is j=0, Q j is 0 value, the most all Line Flow electricity, electricity volume Sj=0, off line electricity Cj=
0；
If Q is j, < 0, Q j is negative value, and general power direction was input, electricity volume Sj=0, off line electricity Cj=at that time
|Q j|。
To a short time every j, preserve the difference of both direction electricity, if the difference of electricity be on the occasion of, save as electricity volume
Sj, if the difference of electricity is negative value, saves as off line electricity Cj, all takes Q j absolute value.
Step 4: repeat the step of above-mentioned 2 to 3, until the end of a billing cycle, all number of times of checking meter are m.
Step 5: add up respectively.
Cumulative for electricity volume Sj in one billing cycle, off line electricity Cj being added up, aggregate-value respectively copies see upper
Net electricity, copy the off line electricity seen, as follows:
Visible, utilize the metering automation system short time every the most every five points of kinds, at most 15 minutes, meter reading merit once
Can, counting period online, off line electricity cancel each other after the sign of clean power transmission amount, i.e. differentiate the side that this short term power transmits
To, discriminate whether that full factory shuts down with this and do not generate electricity, pass through trend, by supporting rear mutually to forward and reverse electricity that adds up at times as
The online that termination is calculated, off line electricity, the most accurate, reasonable, more fair than the monthly metering clearing once carrying out differentiating of checking meter.
To sum up, off line electricity acquisition methods in one provided by the present invention, in each prefixed time interval, from meter
In amount automated system to the gauge table meter reading on the line of all dresses once, it is thus achieved that the meter reading data of all gauge tables；Calculate
The summation of the forward electricity of all gauge tables obtained in Preset Time and the summation of the reverse electricity of all gauge tables；Contrast is just
To the summation of the summation of electricity Yu reverse electricity, calculate electricity volume and off line electricity according to comparing result.Visible, utilize metering
Automated system short time interval meter reading function once, the summation of contrast forward electricity and the summation of reverse electricity, according to right
Calculating electricity volume and off line electricity than result, in such time in counting period, forward electricity and the reverse electricity of gauge table are mutual
The sign of the clean power transmission amount after counteracting, i.e. differentiates the direction that power transmits, and discriminates whether that the shutdown of full factory does not generates electricity, passes through with this
Trend, by supporting mutually rear to forward and reverse electricity that adds up at times as the online of final clearing, off line electricity, checks meter one than monthly
The secondary metering clearing carrying out differentiating are the most accurate, reasonable, fair, realize promoting the standard of the upper off line electricity obtained in this way
Really property.
Above electricity acquisition methods off line in one provided by the present invention is described in detail.Used herein
Principle and the embodiment of the present invention are set forth by specific case, and the explanation of above example is only intended to help to understand this
The method of invention and core concept thereof.It should be pointed out that, for those skilled in the art, without departing from this
On the premise of bright principle, it is also possible to the present invention is carried out some improvement and modification, these improve and modification also falls into present invention power
In the protection domain that profit requires.
Claims (8)
1. a upper off line electricity acquisition methods, it is characterised in that including:
In each prefixed time interval, to the gauge table meter reading one on the line of all dresses from metering automation system
Secondary, it is thus achieved that the meter reading data of all gauge tables；
Calculate the total of the summation of the forward electricity of all gauge tables obtained in Preset Time and the reverse electricity of all gauge tables
With；
The summation of contrast forward electricity and the summation of reverse electricity, calculate electricity volume and off line electricity according to comparing result.
2. the method for claim 1, it is characterised in that export from power plant direction in the meter reading data of gauge table is just
To electricity, to power plant's direction input for reverse electricity.
3. the method for claim 1, it is characterised in that described in each prefixed time interval, from metering automatically
In change system to the gauge table meter reading on the line of all dresses once, it is thus achieved that the meter reading data of all gauge tables, including:
Each prefixed time interval j from metering automation system, to n the gauge table meter reading one on the line of all dresses
Secondary, obtain X1 to Xn, Y1 to Yn data and preserve, n is more than or equal to 2.
4. the method for claim 1, it is characterised in that all gauge tables obtained in described calculating Preset Time are just
To the summation of electricity and the summation of the reverse electricity of all gauge tables, including:
To a prefixed time interval j, obtain forward electricity Xi, the size of reverse electricity Yi, i=1,2 ..., n；N is gauge table
Number, n be more than or equal to 2；
The summation of the forward electricity Xi obtained in calculating each prefixed time interval jAnd the summation of reverse electricity Yi
5. method as claimed in claim 4, it is characterised in that the summation of described contrast forward electricity is total with reverse electricity
With, calculate electricity volume and off line electricity according to comparing result, including:
Calculate the summation of forward electricity and difference Q of reverse electricity summationj,Judge difference QjPower
Direction of transfer, according to difference QjPower direction of transfer analysis obtain electricity volume Sj and off line electricity Cj.
6. method as claimed in claim 5, it is characterised in that according to difference QjPower direction of transfer analysis obtain online electricity
Amount Sj and off line electricity Cj, including:
If Qj＞ 0, power direction of transfer is output, electricity volume Sj=| Qj|, off line electricity Cj=0；
If Qj=0, electricity all Line Flows electricity, electricity volume Sj=0, off line electricity Cj=0；
If Qj＜ 0, power direction of transfer is input, electricity volume Sj=0, off line electricity Cj=| Qj |.
7. the method as described in any one in claim 1 to 6, it is characterised in that also include:
In each prefixed time interval, meter reading is once, until a billing cycle terminates, number of times of checking meter is that m, m are more than or equal to
2；
According to electricity volume Sj in a billing cycle, off line electricity Cj, the calculating accounting period copies and sees that electricity volume, accounting period copy
See below net electricity.
8. method as claimed in claim 7, it is characterised in that the accounting period copies and sees Accounting period copies and sees
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| CN201610561981.6A CN105929225A (en) | 2016-07-13 | 2016-07-13 | Method for acquiring on-grid and off-grid electric quantities |
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| CN201610561981.6A CN105929225A (en) | 2016-07-13 | 2016-07-13 | Method for acquiring on-grid and off-grid electric quantities |
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Cited By (9)
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| CN107785928A (en) * | 2017-09-19 | 2018-03-09 | 福建福清核电有限公司 | A kind of method for measuring multicomputer nuclear power station generated energy |
| CN109637109A (en) * | 2018-12-11 | 2019-04-16 | 国家电网有限公司 | A kind of method that electric quantity data acquisition passes through in power plant |
| CN110824242A (en) * | 2019-10-25 | 2020-02-21 | 国网四川省电力公司成都供电公司 | Metering method and system for eliminating ride-through power |
| CN112014634A (en) * | 2020-08-21 | 2020-12-01 | 国核电力规划设计研究院重庆有限公司 | Multi-loop bidirectional dynamic electric energy metering device and method |
| CN112398162A (en) * | 2020-10-13 | 2021-02-23 | 国网甘肃省电力公司嘉峪关供电公司 | Multi-power-supply centralized bundling internet-surfing electric energy settlement method |
| CN113125848A (en) * | 2021-03-10 | 2021-07-16 | 国家电网有限公司华东分部 | Method and system for measuring through electric quantity of power supply plant and method for settling electric quantity |
| CN114137300A (en) * | 2021-11-22 | 2022-03-04 | 西安热工研究院有限公司 | Metering system and method for offshore wind farm gateway of shared switching station |
| CN114236229A (en) * | 2021-11-24 | 2022-03-25 | 国网山东省电力公司日照供电公司 | Metering method of settlement electric quantity for power plant |
| CN115967120A (en) * | 2023-01-10 | 2023-04-14 | 国网湖南省电力有限公司 | 220 KV power grid network access substation judgment method and capacity-to-load ratio calculation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109637109A (en) * | 2018-12-11 | 2019-04-16 | 国家电网有限公司 | A kind of method that electric quantity data acquisition passes through in power plant |
| CN110824242A (en) * | 2019-10-25 | 2020-02-21 | 国网四川省电力公司成都供电公司 | Metering method and system for eliminating ride-through power |
| CN112014634A (en) * | 2020-08-21 | 2020-12-01 | 国核电力规划设计研究院重庆有限公司 | Multi-loop bidirectional dynamic electric energy metering device and method |
| CN112014634B (en) * | 2020-08-21 | 2024-02-09 | 国核电力规划设计研究院重庆有限公司 | Multi-loop bidirectional dynamic electric energy metering device and method |
| CN112398162A (en) * | 2020-10-13 | 2021-02-23 | 国网甘肃省电力公司嘉峪关供电公司 | Multi-power-supply centralized bundling internet-surfing electric energy settlement method |
| CN113125848A (en) * | 2021-03-10 | 2021-07-16 | 国家电网有限公司华东分部 | Method and system for measuring through electric quantity of power supply plant and method for settling electric quantity |
| CN114137300A (en) * | 2021-11-22 | 2022-03-04 | 西安热工研究院有限公司 | Metering system and method for offshore wind farm gateway of shared switching station |
| CN114137300B (en) * | 2021-11-22 | 2024-01-19 | 西安热工研究院有限公司 | System and method for metering gateway of offshore wind farm of shared switching station |
| CN114236229A (en) * | 2021-11-24 | 2022-03-25 | 国网山东省电力公司日照供电公司 | Metering method of settlement electric quantity for power plant |
| CN115967120A (en) * | 2023-01-10 | 2023-04-14 | 国网湖南省电力有限公司 | 220 KV power grid network access substation judgment method and capacity-to-load ratio calculation method |
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Application publication date: 20160907 |