CN112133029A - Real-time electric quantity charging settlement method for electric energy meter replacement - Google Patents
Real-time electric quantity charging settlement method for electric energy meter replacement Download PDFInfo
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- CN112133029A CN112133029A CN202010969714.9A CN202010969714A CN112133029A CN 112133029 A CN112133029 A CN 112133029A CN 202010969714 A CN202010969714 A CN 202010969714A CN 112133029 A CN112133029 A CN 112133029A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/56—Special tariff meters
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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Abstract
The invention discloses a real-time electric quantity charging settlement method for electric energy meter replacement, which relates to the technical field of electric energy meter replacement and comprises the following steps: reading the electric quantity of the old electric energy meter, confirming the electric quantity W1 at the T1 moment, simultaneously carrying out real-time electric quantity charging through the instantaneous value, and confirming the electric quantity W2 at the T1 moment, wherein the charging is started from 0 by W2; the old electric energy meter exits the current loop, the current electric quantity reading of the old electric energy meter is obtained, and the electric quantity W3 at the time of T2 is confirmed; the old electric energy meter quits running, and the new electric energy meter is switched and is completely connected into the current and voltage loop for charging; stopping and reading the electric quantity of the new electric energy meter, and confirming the electric quantity to be W4 at the time of T3; and acquiring the electric quantity integrity electric quantity difference W in the switching process of the new and old electric meters. The invention solves the problems of inaccurate electric quantity caused by single-phase current switching operation and inaccurate electric quantity caused by load change or fluctuation, realizes effective control of time points, controls the electric quantity statistics at the optimal moment, and has wide application range.
Description
Technical Field
The invention relates to the technical field of electric energy meter replacement, in particular to a real-time electric quantity charging settlement method for electric energy meter replacement.
Background
For many years, electric power enterprise staff must have the condition of collecting and operating electric quantity data of new and old electric meters in the process of troubleshooting on electric energy meter sites and electric energy meter rotation, and also can be used as more key node data in the electric energy meter life-cycle management node: a retirement node and a commissioning node. The accuracy requirement on the data is also high.
The accumulated electric quantity settlement and meter reading after the new electric energy meter is put into operation or the statistical data of the marketing platform generate a certain difference value due to electric quantity pursuit, data correction and input are needed to be carried out through a manual means, and the workload of background operation maintenance personnel is increased.
Meanwhile, the electric quantity difference between the new electric energy meter and the old electric energy meter relates to the requirements of electric quantity chasing and settlement, the electric quantity chasing is mainly realized by adopting a manual calculation mode at present, and certain randomness and uncertainty exist in the electric quantity chasing. The electric quantity which is mainly in the process of randomness is only accumulated time according to a calculation formula, but not the electric quantity which is really generated by combining the accumulation of current values, voltage values and time, and the electric quantity caused by load or fluctuation in the switching process is inaccurate, so that an effective metering method does not exist, thereby influencing both parties of settlement and having a certain dispute on data.
Therefore, a real-time electricity charging and settlement method for replacing an electric energy meter is needed.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a real-time electric quantity charging settlement method for electric energy meter replacement, which solves the technical problems of certain randomness and uncertainty in electric quantity chasing by adopting a manual calculation mode at present.
The technical scheme of the invention is realized as follows:
a real-time electric quantity charging settlement method for electric energy meter replacement comprises the following steps:
step S1, reading the electric quantity of the old electric energy meter, confirming the electric quantity W1 at the time of T1, simultaneously carrying out real-time electric quantity charging through the instant value, and confirming the electric quantity W2 at the time of T1, wherein W2 starts charging from 0 and is represented as W2 which is 0;
step S2, the old electric energy meter exits the current loop, the current electric quantity reading of the old electric energy meter is obtained, and the electric quantity W3 at the time of T2 is confirmed;
step S3, the old electric energy meter quits the operation, the new electric energy meter switches and all switches in the current and voltage loop to charge;
step S4, stopping and reading the electric quantity of the new electric energy meter, confirming as electric quantity W4 at the time of T3, wherein the electric quantity W5 at the time of T3 comprises the current electric quantity of the settlement electric energy meter field check meter;
step S5, obtaining the electric quantity integrity electric quantity difference W in the switching process of the new and old electric meters, which is expressed as:
W＝W5-W4-(W3-W1)。
further, the method also comprises the steps of obtaining an electric energy meter field check meter and a charging settlement module, wherein the electric energy meter field check meter and the charging settlement module are arranged in the electric energy meter field;
the electric energy meter on-site calibrator is used for acquiring instantaneous values of three-phase voltage values, three-phase currents, electric energy meter electric quantity and the like of the electric energy metering secondary circuit;
and the charging settlement module is used for performing real-time electric quantity settlement and charging.
Further, the method also comprises the following steps:
the electric energy meter field calibration instrument is connected to an electric energy metering secondary circuit in advance in a mode of connecting a current loop in series and a voltage loop in parallel in a direct access mode, and is connected to an electric energy meter 485 communication port through 485 wiring.
And the charging and settlement module reads the electric quantity of the old electric energy meter and charges the electric quantity in real time through the instantaneous quantity value.
The charging and settlement module executes the reading of the electric quantity of the old electric energy meter;
and the charging and settlement module stops and reads the electric quantity of the new electric energy meter.
The invention has the beneficial effects that:
the invention provides a real-time electric quantity charging and settlement method for replacing an electric energy meter, which comprises the steps of reading the electric quantity of an old electric energy meter, simultaneously charging the electric quantity in real time through an instantaneous value, exiting a current loop through the old electric energy meter, obtaining the electric quantity read of the current old electric energy meter, exiting the operation of the old electric energy meter, switching a new electric energy meter, fully accessing a current loop and a voltage loop for charging, stopping and reading the electric quantity of the new electric energy meter, and settling the current electric quantity of an electric energy meter field check meter to obtain an electric quantity integrity electric quantity difference W in the switching process of the new electric energy meter and the old electric energy meter, so that the problems of inaccurate electric quantity caused by single-phase current switching operation and inaccurate electric quantity caused by load change or fluctuation are solved, the time point can be effectively controlled, the electric quantity statistics is controlled at the optimal time, and the.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart of a real-time electric quantity charging and settlement method for electric energy meter replacement according to an embodiment of the present invention;
fig. 2 is a scene schematic diagram of a real-time electric quantity charging and settlement method for electric energy meter replacement according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to the embodiment of the invention, the real-time electric quantity charging settlement method for replacing the electric energy meter is provided.
As shown in fig. 1-2, the method for charging and settling the real-time electric quantity for replacing the electric energy meter according to the embodiment of the present invention includes the following steps:
step S1, reading the electric quantity of the old electric energy meter, confirming the electric quantity W1 at the time of T1, simultaneously carrying out real-time electric quantity charging through the instant value, and confirming the electric quantity W2 at the time of T1, wherein W2 starts charging from 0 and is represented as W2 which is 0;
step S2, the old electric energy meter exits the current loop, the current electric quantity reading of the old electric energy meter is obtained, and the electric quantity W3 at the time of T2 is confirmed;
step S3, the old electric energy meter quits the operation, the new electric energy meter switches and all switches in the current and voltage loop to charge;
step S4, stopping and reading the electric quantity of the new electric energy meter, confirming as electric quantity W4 at the time of T3, wherein the electric quantity W5 at the time of T3 comprises the current electric quantity of the settlement electric energy meter field check meter;
step S5, obtaining the electric quantity integrity electric quantity difference W in the switching process of the new and old electric meters, which is expressed as:
W＝W5-W4-(W3-W1)。
the system also comprises an electric energy meter field check meter and a charging settlement module, wherein the electric energy meter field check meter and the charging settlement module are obtained;
the electric energy meter on-site calibrator is used for acquiring instantaneous values of three-phase voltage values, three-phase currents, electric energy meter electric quantity and the like of the electric energy metering secondary circuit;
and the charging settlement module is used for performing real-time electric quantity settlement and charging.
Wherein, still include the following step:
the electric energy meter field calibration instrument is connected to an electric energy metering secondary circuit in advance in a mode of connecting a current loop in series and a voltage loop in parallel in a direct access mode, and is connected to an electric energy meter 485 communication port through 485 wiring.
And the charging and settlement module reads the electric quantity of the old electric energy meter and charges the electric quantity in real time through the instantaneous quantity value.
The charging and settlement module executes the reading of the electric quantity of the old electric energy meter;
and the charging and settlement module stops and reads the electric quantity of the new electric energy meter.
By means of the technical scheme, the electric quantity of the old electric energy meter is read, the real-time electric quantity is charged through the instantaneous value at the same time, the old electric energy meter exits from a current loop, the electric quantity of the current old electric energy meter is read, the old electric energy meter exits from running, the new electric energy meter is switched and is completely accessed into a current loop and a voltage loop for charging, the electric quantity of the new electric energy meter is stopped and read, the current electric quantity of the electric energy meter field check meter is settled, the electric quantity integrity electric quantity difference W in the switching process of the new electric energy meter and the old electric energy meter is obtained, the problems that the electric quantity is inaccurate due to single-phase current switching operation and the electric quantity is inaccurate due to load change or fluctuation are solved, the time point can be effectively controlled, the electric quantity statistics is controlled at the optimal time, and.
Specifically, the valid values of W1 and W2 are acquired at time T1, and the correlation storage and calculation application is performed. The time T1 is advanced to the time before the old electric energy meter stops running, and the accumulated value of the electric quantity in the period is corrected by a calculation method. The effective value of the electric quantity W3 can be acquired at the T2 moment when the old electric energy meter is out of operation, and relevant storage and calculation application are carried out. And acquiring the electric quantity W3 in the T2 moment, and correcting the accumulated value of the electric quantity advance at the T1 moment. The electric quantity W4 and the electric quantity W5 can be acquired at the time T3, and relevant storage and calculation applications are carried out.
In addition, specifically, in an embodiment, the electric quantity settlement and charging for switching between the new electric meter and the old electric meter are performed by using a gateway on a 220kV wind farm, which is expressed as:
the method comprises the steps that firstly, the situation that a 220kV wind power plant golden wind wire meter screen corresponds to an old electric energy meter is confirmed, the electric energy meter site calibrator is connected into an electric energy metering secondary circuit in a mode of connecting a current loop in series and a voltage loop in parallel, and the electric energy metering secondary circuit is connected into a 485 communication port of the electric energy meter through 485 wiring. And the field magnification is 275 ten thousand. The current instantaneous magnitude value obtained by the electric energy meter field check meter is as the following table 1:
TABLE 1 golden wind line instantaneous quantity information
| Instantaneous value | Phase A | Phase B | Phase C | Combined element |
| U(V) | 58.722 | 58.839 | 58.767 | —— |
| ∠U(°) | 120.082 | 120.119 | 119.799 | —— |
| I(A) | 0.0485 | 0.0496 | 0.0497 | —— |
| ∠I(°) | 174.488 | 174.189 | 174.724 | —— |
| P(W) | -2.8314 | -2.8982 | -2.9011 | -8.8631 |
| Q(VAR) | 0.2735 | 0.2952 | 0.2682 | 0.8368 |
| S(VA) | 2.8461 | 2.9148 | 2.9161 | 8.6773 |
| PF | -0.995 | -0.994 | -0.995 | -0.995 |
And secondly, after the access is finished, the charging and settlement module starts to execute, and reads the electric quantity of the old electric energy meter, wherein the electric quantity is confirmed to be T1-14: 15, and the electric quantity is confirmed to be W1-732583162.42 kWh. And meanwhile, the charging settlement module starts to charge the real-time electric quantity through the instant quantity value, and the electric quantity W2 is confirmed to be 0 at the moment T1.
And thirdly, completing switching between the new electric energy meter and the old electric energy meter, enabling the old electric energy meter to completely quit the current loop, and executing electric quantity reading of the old electric energy meter by the charging and settlement module, wherein the electric quantity reading is confirmed to be T2-14: 20 and the electric quantity W3-732586214.23 kWh.
And fourthly, after the old electric energy meter quits operation, the new electric energy meter is normally switched and is completely connected into the current and voltage loop, and the charging is normally started.
And fifthly, when the new electric energy meter is normally charged, the charging and settlement module stops and reads the electric quantity of the new electric energy meter, and the electric quantity is confirmed to be T3-14: 35 and W4-980.725 kWh. And the current electric quantity of the electric energy meter field check meter is settled, and the electric quantity W5 is confirmed to be 8907.25 kWh.
And sixthly, after the electric quantity is obtained, according to the following calculation formula:
W＝W5-W2-W4-(W3-W1)
＝8907.25-0-980.725-(732583162.42―732586214.23)＝10978.34kWh
and seventhly, calculating by using a manual calculation method according to the current electric quantity statistics and the working time of 20 minutes: w08.8631 (20/60) 2750000/1000 (8124.51 kWh). The calculated difference between the manual method and the method of the invention is as follows: 10978.34-8124.51 ═ 2853.83 kWh. In the example, 2853.83kWh is counted for the power shortage during the switching of the new meter and the old meter due to the influence of wind fluctuation.
In summary, by means of the technical scheme of the invention, the real-time electric quantity charging and settlement method supporting field switching of the new and old electric energy meters can accurately measure the electric quantity difference value in the switching process of the new and old electric energy meters, and the method has the advantages of no electric quantity inaccuracy caused by single-phase current switching and commissioning and no electric quantity inaccuracy caused by load change or fluctuation. Meanwhile, the time point can be effectively controlled, the electric quantity statistics handle is controlled at the optimal time, and the authority and the duty are clear.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A real-time electric quantity charging settlement method for electric energy meter replacement is characterized by comprising the following steps:
reading the electric quantity of the old electric energy meter, confirming the electric quantity W1 at the time of T1, simultaneously carrying out real-time electric quantity charging through an instant value, and confirming the electric quantity W2 at the time of T1, wherein the charging is started from 0 by W2, and is represented as W2 being 0;
the old electric energy meter exits the current loop, the current electric quantity reading of the old electric energy meter is obtained, and the electric quantity W3 at the time of T2 is confirmed;
the old electric energy meter quits running, and the new electric energy meter is switched and is completely connected into the current and voltage loop for charging;
stopping and reading the electric quantity of the new electric energy meter, and confirming the electric quantity as electric quantity W4 at the time of T3, wherein the electric quantity comprises the current electric quantity of the settlement electric energy meter field check meter and the electric quantity W5 at the time of T3;
acquiring the electric quantity integrity electric quantity difference W in the switching process of the new and old electric meters, wherein the electric quantity integrity electric quantity difference W is expressed as:
W＝W5-W4-(W3-W1)。
2. the real-time electric quantity charging and settlement method for electric energy meter replacement according to claim 1, further comprising obtaining an electric energy meter field check meter and a charging and settlement module, wherein;
the electric energy meter on-site calibrator is used for acquiring instantaneous values of three-phase voltage values, three-phase currents, electric energy meter electric quantity and the like of the electric energy metering secondary circuit;
and the charging settlement module is used for performing real-time electric quantity settlement and charging.
3. The real-time electric quantity charging and settlement method for electric energy meter replacement according to claim 2, characterized by further comprising the steps of:
the electric energy meter field calibration instrument is connected to an electric energy metering secondary circuit in advance in a mode of connecting a current loop in series and a voltage loop in parallel in a direct access mode, and is connected to an electric energy meter 485 communication port through 485 wiring.
And the charging and settlement module reads the electric quantity of the old electric energy meter and charges the electric quantity in real time through the instantaneous quantity value.
The charging and settlement module executes the reading of the electric quantity of the old electric energy meter;
and the charging and settlement module stops and reads the electric quantity of the new electric energy meter.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113702677A (en) * | 2021-08-04 | 2021-11-26 | 国网浙江杭州市富阳区供电有限公司 | Uninterrupted meter changing method and device with meter reading number updating function |
| CN113791273A (en) * | 2021-07-26 | 2021-12-14 | 广东电网有限责任公司广州供电局 | Electric quantity compensation method, device, system and storage medium |
| CN114002498A (en) * | 2021-09-06 | 2022-02-01 | 漳州科能电器有限公司 | Method for additional measurement and additional calculation of electric quantity missed in meter replacement of electric energy meter |
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