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CN106249193B - A kind of method and system of the charging pile electric energy metering error verification of charging station - Google Patents

A kind of method and system of the charging pile electric energy metering error verification of charging station
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CN106249193B
CN106249193BCN201610804945.8ACN201610804945ACN106249193BCN 106249193 BCN106249193 BCN 106249193BCN 201610804945 ACN201610804945 ACN 201610804945ACN 106249193 BCN106249193 BCN 106249193B
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error
electric energy
charging pile
power supply
charging
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CN106249193A (en
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侯铁信
朱海昱
侯飞
熊力
吴畏
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Wuhan National Survey Data Technology Co Ltd
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Wuhan National Survey Data Technology Co Ltd
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Abstract

The present invention relates to charging pile technical fields, provide the charging pile electric energy metering error method of calibration and system of a kind of charging station.Method includes the electric energy related data for the respective place route that electric energy metering device, each charging pile and the error criterion device of error calculating device reception power supply report;Error calculating device solves the global error of electric energy metering device, the global error of each charging pile and/or the charging pile electric energy loss of power supply according to the electric energy related data of the electric energy metering device of the power supply received, each charging pile and error criterion device.Present invention step-up error standard in existing charging station, the Energy Conservation system in conjunction with locating for error criterion device, the foundation of equation is completed using the electric energy related data that each charging pile and error criterion device report, and brings equation into using the electric energy related data of different periods and solves to obtain the global error, the global error of each charging pile and/or charging pile electric energy loss of the electric energy metering device of power supply.

Description

A kind of method and system of the charging pile electric energy metering error verification of charging station
[technical field]
The present invention relates to charging pile technical fields, verify more particularly to a kind of charging pile electric energy metering error of charging stationMethod and system.
[background technique]
The function of charging pile is similar to the fuel charger inside gas station, can be fixed on ground or wall, be installed on publicIt builds in (public building, market, Public Parking etc.) and residential area parking lot or charging station, it can be according to different voltageGrade is that the electric car of various models charges.The input terminal of charging pile is directly connected to AC network, and output end, which is equipped with, to be filledPlug is used to charge for electric car.Charging pile generally provides two kinds of charging modes of normal charge and quick charge, Ren MenkeIt is used with using specific recharged card to swipe the card on the man-machine interactive interface that charging pile provides, carries out corresponding charging sideOperation, the charging pile display screens such as formula, charging time, cost data printing can show the data such as charge volume, expense, charging time.
Existing charging station is usually made of multiple charging piles, however, existing charging station but having there is no a kind of rowThe real-time online method of calibration of the measurement error for each charging pile of effect, cannot achieve the flexible monitoring of electric energy metering error.
In consideration of it, overcoming defect present in the prior art is the art urgent problem to be solved.
[summary of the invention]
The technical problem to be solved by the present invention is to how realize the calculating of the global error of each charging pile in charging station.
The present invention adopts the following technical scheme:
In a first aspect, the present invention provides a kind of method of the charging pile electric energy metering error of charging station verification, it is described to fillPower station include at least all the way with the power supply of electric energy metering device, the error criterion device of at least one known universe error amount,One or more charging pile, wherein the error criterion device is serially connected on the power supply route of the charging pile, the mistakePoor standard is serially connected on the charging pile or the error criterion device and the charging pile and connects, specific:
The error calculating device receives the electric energy metering device, each charging pile and error criterion of the power supplyThe electric energy related data for the respective place route that device reports;
The error calculating device is according to the electric energy metering device, each charging pile and error of the power supply receivedThe electric energy related data of standard solves global error, the global error of each charging pile of the electric energy metering device of power supplyAnd/or charging pile electric energy loss.
Preferably, the error calculating device is according to the electric energy metering device of the power supply received, described eachThe electric energy related data of charging pile and error criterion device solves the global error of the electric energy metering device of power supply, each charging pileGlobal error and/or charging pile electric energy loss, specifically include:
The error calculating device receives the energy value that the electric energy metering device of the power supply reports, each chargingThe energy value that the rechargeable electrical energy value and standard error device that stake reports report is established and is filled comprising the electrical energy measurement into power supplyThe global error of the global error, each charging pile set and/or charging pile electric energy loss are as variable and error criterion device errorIt is worth the equation as known constant;
The error calculating device is according to electric energy metering device, each charging pile and the error mark of multiple received power supplyThe energy value or belong to energy value in different time periods according to what each charging pile and error criterion device reported that quasi- device reports, buildThe vertical equation group being made of the equation;By solving the equation group, the electric energy metering device, each of power supply is calculatedThe global error and/or charging pile electric energy loss of charging pile.
Preferably, electric energy metering device of the error calculating device according to the power supply received, each chargingThe electric energy related data of stake and error criterion device solve the global error of electric energy metering device of power supply, each charging pile it is wholeBody error and/or charging pile electric energy loss, specifically include:
The error calculating device receives the electric energy metering device, each charging pile and error criterion of the power supplyThe energy value and corresponding current value that device reports, according to the electricity under the cumulative obtained each current segmenting of line current segmentation of different sizesEnergy accumulation value;The global error of the electric energy metering device comprising power supply is established by the electric flux accumulated value, is respectively filledThe global error of electric stake and/or charging pile electric energy loss are as variable and error criterion device error amount as known constantEquation;
The error calculating device is according to electric energy metering device, each charging pile and the mistake of the multiple received power supplyThe electric energy related data that poor standard reports or electric energy metering device, each charging pile and error mark according to the power supplyWhat quasi- device reported belongs to the equation group that electric energy related data foundation in different time periods is made of the equation;Pass through solution instituteEquation group is stated, the global error and phase of the electric energy metering device, each charging pile of power supply under each current segmenting is calculatedInductive charging stake electric energy loss value.
Preferably, when solving the equation, retrieval is filled the error calculating device by the electrical energy measurement of power supplyIt sets, the energy value that each charging pile and error criterion device report or belonged to according to what each charging pile and error criterion device reportedEnergy value in different time periods determines the energy value of power supply and all charging piles simultaneously in the same period, while solving simultaneouslyObtain the global error and charging pile electric energy loss of all charging piles.
Preferably, the method also includes:
The global error of the electric energy metering device for the power supply that current preference is solved, one or moreThe global error value and charging pile electric energy loss value of charging pile bring the equation into, and determine do not solve also it is wholeWithin the scope of body error and one or more charging pile of charging pile electric energy loss, charging work is carried out most simultaneously in the same periodSecond group of few energy value, and preferentially solve the global error for reporting the charging pile of second group of energy value and charging pile electric energy damageConsumption;It is progressive according to this to have solved all global errors to be solved and charging pile electric energy loss in equation.
Preferably, described by solving the equation group, be calculated the electric energy metering device of power supply global error,The global error and/or charging pile electric energy loss of each charging pile, specifically include:
Preset one group of initial error amount, the error variance to be solved for being assigned in equation group, wherein it is described toThe error variance of solution include the global error of the electric energy metering device of the power supply, the global error of each charging pile and/Or charging pile electric energy loss;
The object for choosing an error variance to be solved as the first round from the grouping error variable to be solved one by one,And other error variances are then using the preset error amount as parameter, and regard as known object;
The solution of first round object to be solved is carried out using optimization algorithm, specifically:
By comparing the object to be solved obtained function calculated result under different value conditions, gradually adjustThe value of the object to be solved;
When the deviation of two function calculated results is less than preset threshold, the global error of the object to be solved is obtainedValue or charging pile electric energy loss value;
Mode is solved according to the above-mentioned object to be solved for the first round, is successively obtained respective whole in the grouping error variableBody error amount and charging pile electric energy loss value.
Second aspect, the present invention provides a kind of system of the charging pile electric energy metering error of charging station verification, the systemsSystem includes error criterion device, one or more charging pile, error calculating device of at least one known universe error amount,In, the error criterion device is serially connected on the power bus of the charging pile or the error criterion device is concatenated or and connectIt is specific on the charging pile:
One or more of charging piles and the error criterion device connect the error calculating device;
The electric energy related data of route where one or more of charging piles and error criterion device record are respective, and onOffer the error calculating device;
The error calculating device according to the electric energy metering device of the power supply received, each charging pile andThe electric energy related data of error criterion device solves the global error of the electric energy metering device of power supply, the whole of each charging pile missesDifference and/or charging pile electric energy loss.
The third aspect, the present invention provides a kind of method of the charging pile electric energy metering error of charging station system verification, institutesStating charging station system includes at least one power supply and its electric energy metering device, at least one route equipped with whole known to oneBody error electric energy metering device is as error criterion device, one or more charging pile and its electric energy metering device, wherein describedError calculating device receives the respective electricity that whole electric energy metering devices in the charging station system and error criterion device reportEnergy related data, the whole electric energy metering error of each charging pile is calculated according to preset formula model.
Preferably, the formula model, specifically:
It is equal to each charging pile with the inputing power that mathematic(al) representation describes charging station system power supply and exports electric energy summationEquilibrium relationships, wherein the inputing power of the system power supply power supply by power supply electric energy metering device reading andGlobal error statement, the output electric energy can by the electric energy metering device on each charging pile and route reading and it is respectiveError variance statement;Wherein, the error variance includes global error and charging pile electric energy loss.
Preferably, multiple electric energy metering error variables and loss variable in the mathematical model, need manyA whole group mathematics side is constituted in the mathematic(al) representation of the error variance and multiple and different coefficients of the sum of loss variable numberFormula or mathematic(al) representation, and by the calculating to a whole group mathematic(al) representation, it is calculated and is filled including allThe measurement error of all electric energy metering devices including electric stake electric energy metering error.
Compared with prior art, pass through to be arranged in existing charging station the beneficial effects of the present invention are: the present invention and missPoor standard, and combine Energy Conservation system locating for error criterion device, the electricity reported using each charging pile and error criterion deviceEnergy related data completes the foundation of equation, and brings the equation into using the electric energy related data of different periods and solve to obtainThe global error of the electric energy metering device of power supply, the global error of each charging pile and/or charging pile electric energy loss.To graspMake personnel according to the global error of the electric energy metering device of power supply, the global error of each charging pile and/or charging pile electric energyLoss confirms that those charging piles are in normal operating conditions, and those charging piles needs are adjusted or replace.
[Detailed description of the invention]
Fig. 1 is a kind of system architecture of the charging pile electric energy metering error verification of charging station provided in an embodiment of the present inventionFigure;
Fig. 2 is the system architecture of the charging pile electric energy metering error verification of another charging station provided in an embodiment of the present inventionFigure;
Fig. 3 is a kind of method flow of the charging pile electric energy metering error verification of charging station provided in an embodiment of the present inventionFigure;
Fig. 4 is a kind of structural schematic diagram of the charging pile transformation of charging station provided in an embodiment of the present invention;
Fig. 5 is the method flow of the charging pile electric energy metering error verification of another charging station provided in an embodiment of the present inventionFigure;
Fig. 6 is the method flow of the charging pile electric energy metering error verification of another charging station provided in an embodiment of the present inventionFigure;
Fig. 7 is a kind of structural schematic diagram of the charging pile of charging station provided in an embodiment of the present invention.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, rightThe present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, andIt is not used in the restriction present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other notConstituting conflict can be combined with each other.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of method of the charging pile electric energy metering error verification of charging station, the chargingIt stands including at least all the way with the power supply of electric energy metering device, the error criterion device of at least one known universe error amount, oneA or multiple charging piles, wherein the error criterion device is serially connected on the power supply route of the charging pile (such as Fig. 1 instituteShow), the error criterion device is serially connected on the charging pile or the error criterion device and the charging pile and meets (such as Fig. 2It is shown), as shown in figure 3, specifically including following steps:
In step 201, the error calculating device receives the electric energy metering device of the power supply, each chargingThe electric energy related data for the respective place route that stake and error criterion device report.
Wherein, electric energy related data include electric energy measurement data, current segmenting data, time data, charging pile mark inOne or more.
In step 202, electric energy metering device of the error calculating device according to the power supply received, instituteState the electric energy metering device of the electric energy related data solution power supply of each charging pile and error criterion device, the entirety of each charging pileError and/or charging pile electric energy loss.
Wherein, according to the metering device of metering device and output node (charging pile) as input node (power supply)Between connection relationship, the electric energy loss of charging pile can be one or more of line loss, loss on transmission, rectifier loss.
Such as: connection between the metering device of input node and the metering device of output node distance is close enough, then itsLine loss amount can be ignored.Wherein, the loss can be by adding error criterion device at equal length transmission line of electricity both endsMode detect whether the line loss amount of practical transmission line of electricity can be ignored.
The embodiment of the present invention is combined locating for error criterion device by the step-up error standard in existing charging stationEnergy Conservation system, the electric energy dependency number reported using the electric energy metering device of power supply, each charging pile and error criterion deviceAccording to the foundation of completion equation, and the equation is brought into using the electric energy related data of different periods and solves to obtain power supplyThe global error of electric energy metering device, the global error of each charging pile and/or charging pile electric energy loss.So as to operator's rootConfirm according to the global error of the electric energy metering device of power supply, the global error of each charging pile and/or charging pile electric energy lossThose charging piles are in normal operating conditions, and those charging piles needs are adjusted or replace.
In conjunction with the embodiment of the present invention, for the step 202, there are a kind of preferred implementations, specifically include:
The error calculating device receives the energy value that the electric energy metering device of the power supply reports, each chargingThe energy value that the rechargeable electrical energy value and standard error device that stake reports report, establishes the electric energy metering device comprising power supplyGlobal error, the global error of each charging pile and charging pile electric energy loss make as variable and error criterion device error amountFor the equation of known constant;
The error calculating device is according to electric energy metering device, each charging pile and the error mark of multiple received power supplyThe energy value or belong to energy value in different time periods according to what each charging pile and error criterion device reported that quasi- device reports, buildThe vertical equation group being made of the equation;By solving the equation group, the electric energy metering device of power supply is calculatedGlobal error, the global error of each charging pile and/or charging pile electric energy loss.
Based on the above-mentioned preferred implementation scheme for step 202, and to the intelligence electricity for completing electrical energy measurement on charging pileThe research of table confirms intelligent electric meter in the case where flowing through the metering environment of different size electric current, and the global error shown is different, i.e., different measurement electric currents are suitable for different global error values, and therefore, in conjunction with step 202 of the embodiment of the present invention, there are oneThe mode of the more accurate solution global error of kind, specific as follows:
Electric energy metering device, each charging pile and the error criterion device of the received power supply of error calculating deviceThe energy value and corresponding current value reported, according to the electric energy under the cumulative obtained each current segmenting of line current segmentation of different sizesMeasure accumulated value;Pass through the global error of electric energy metering device of the electric flux accumulated value foundation comprising power supply, each chargingEquation of the global error and charging pile electric energy loss of stake as variable and error criterion device error amount as known constantFormula;
The error calculating device is according to electric energy metering device, each charging pile and the error mark of multiple received power supplyThe electric energy related data or reported according to the electric energy metering device, each charging pile and error criterion device of power supply that quasi- device reportsThe electric energy related data in different time periods of belonging to establish the equation group being made of the equation;By solving the equationThe global error and phase inductive charging of the electric energy metering device, each charging pile of power supply under each current segmenting is calculated in groupStake electric energy loss value.
Wherein, how the current segmenting of each intelligent electric meter is bound, is can be through means of testing or history warpTest acquisition, due to and non-present invention invention emphasis, will not repeat them here.
Embodiment 2:
This implementation implements the environment of parameter in the content basis of embodiment 1, by being related to, and illustrates how to calculate and fillElectric stake electric energy loss.In the present embodiment, the charging pile electric energy loss is mainly shown as loss on transmission or rectifier loss, it is assumed that becomesPower station inlet wire is four tunnel of three-phase (single-phase is 380V), and is two 450V exchange outputs after transformation.Error in the present embodimentEquipment in standard and charging pile for completing electrical energy measurement is known as electric energy metering device, substation's schematic diagram such as Fig. 4It is shown, according to law of conservation of energy, the electric energy of high-pressure side input be equal in, the electric energy and the sum of loss on transmission of low pressure output.
W1(1+X1)*(1+XS)=W2(1+X2)+W3(1+X3) (1)
Wherein, Wi=1,2,3 be the electric flux reading of transformer high-low-voltage side electric energy metering device;Xi=1,2,3 be Wi=The error of electric energy metering device where 1,2,3;XsIt is a ratio value of transformer loss electric energy Yu high-pressure side inputing power.
If constituting equation with formula (1) or even equation group, obtained equation group will be a homogeneous equations, this is neatPower, which is chartered by voyage, can not obtain one group " unique solution ".
This method be by " error of a given electric energy metering device is " known " ", it is " related between destruction equationProperty ", so that equation group can obtain " unique solution ".Specifically, when actual measurement, we are high, medium and low anyThe error testing of the electric energy metering device of voltage side is accurate, we can be obtained by a known error X in this wayi, do not lose oneAs property, it will be assumed that the error X of high-pressure side electric energy metering device1It is known error, formula (1) is arranged, available:
W1Xs+W1X1Xs-W2X2-W3X3=(W2+W3-W1-W1X1)(2)
Formula (2) is one, and there are three unknown number X2, X3And XsEquation.If we are the electric energy meter of high, medium and low sideIt measures the continuous reading of device electric flux reading three times, reads: W11, W12, W13;W21, W22, W23;And W31, W32, W33;By this three group number-readingIt is updated to formula (2), available ternary quadratic equation group.This equation group has solution, furthermore, it is possible to obtain one group" unique solution ".This group of unique solution is exactly:
X2--- the global error of medium voltage side electric energy metering device;
X3--- the global error of Electric Energy Measurement at Low Voltage Side device;
Xs--- loss on transmission ratio value=transformer loss energy consumption/high-pressure side inputing power amount;
It is nonlinear in view of transformer is loss, it may be considered that it is related to read electric energy using input terminal " current segmenting "The method of data detects the true global error of electric energy metering device.While having surveyed the error of electric energy metering device quasi-,Transformer loss also can be measured accurately.
Embodiment 3:
Embodiment 1 describes the electric energy related data completion charging station how to report according to each charging pile and standard error deviceThe global error of the electric energy metering device of middle power supply, the global error of each charging pile and/or charging pile electric energy loss calculateMethod and solution means.However, because of the intelligent electric meter accuracy on charging pile and/or can be filled in real solution procedureThe presence of the micro energy consumptions unit such as monitoring unit, display screen for running in electric stake is (substantially negligible, but can be rightSolving equations affect), cause the equation finally constructed that can not solve the global error value and charging of each charging pileStake electric energy loss value.Therefore, in conjunction with the embodiment of the present invention 1, the embodiment of the present invention proposes a kind of optimization to solve the above problemsAlgorithm, as shown in figure 5, specifically includes the following steps:
In step 2021, one group of initial error amount is preset, the error to be solved for being assigned in equation group becomesAmount, wherein the error variance to be solved includes the global error of the electric energy metering device of the power supply, each charging pileGlobal error and/or charging pile electric energy loss.
In step 2022, one by one choose an error variance as the first round from the grouping error variable to be solvedObject to be solved, and other error variances are then using the preset error amount as parameter, and regard as known object.
The solution of first round object to be solved is carried out using optimization algorithm, specifically:
In step 2023, by comparing the object to be solved, obtained function is calculated under different value conditionsAs a result, gradually adjusting the value of the object to be solved.
In step 2024, when the deviation of two function calculated results is less than preset threshold, obtain described to be solvedThe global error value or charging pile electric energy loss value of object.
In step 2025, mode is solved according to the above-mentioned object to be solved for the first round, successively obtains the grouping errorRespective global error value and charging pile electric energy loss value in variable.
Embodiment 4:
In Example 1 and Example 2 of the present invention, a kind of reality of the charging pile electric energy metering error verification of charging station is providedExisting method, however, its calculation method does not make full use of charging pile to charge during specific implementation handling characteristics andThe characteristic of its electric energy related data reported itself, wherein the use of charging pile is intermittent and is discrete, and is missedThe electric energy related data of entire charging station received by poor computing device within the same period there may be only 1 or2 charging piles are work (such as: more deserted period such as midnight), if preferentially calculating 1 or 2 according to the special circumstancesThe global error and charging pile electric energy loss of a charging pile, and bring original equation formula into turn and carry out the entirety of other charging piles accidentallyDifference and charging pile electric energy loss solve, this will greatly simplify calculation amount, and can effectively improve computational efficiency.Therefore, in conjunction withThere is also a kind of efficient solution throughways for Example 1 and Example 2 of the present invention.As shown in fig. 6, specifically comprising the following steps:
In step 301, the error calculating device is retrieved when solving the equation by each charging pile and errorThe energy value or belong to energy value in different time periods according to what each charging pile and error criterion device reported that standard reports.
In step 302, it determines in the same period while carrying out the least first group of energy value of charging work, and preferentially askSolution reports the global error and charging pile electric energy loss of the charging pile of first group of energy value.
The global error of the electric energy metering device for the power supply that in step 303, current preference is solved,The global error value and charging pile electric energy loss value of one or more charging pile bring the equation into.
In step 304, determine do not solve global error and charging pile electric energy loss also one or moreWithin the scope of charging pile, carry out the least second group of energy value of charging work simultaneously in the same period, and preferentially solve report thisThe global error and charging pile electric energy loss of the charging pile of two groups of energy value.
In step 305, progressive according to this to have solved all global errors to be solved and charging pile electric energy damage in equationConsumption.
Embodiment 5:
The embodiment of the invention also provides a kind of system of the charging pile electric energy metering error of charging station verification, such as Fig. 1 and 2Shown, the system comprises the error criterion device of at least one known universe error amount, one or more charging pile, error metersCalculate device, wherein the error criterion device is serially connected on the power bus of the charging pile or error criterion device concatenationOr be attempted by the charging pile, it is specific:
One or more of charging piles and the error criterion device connect the error calculating device.
The electric energy related data of route where one or more of charging piles and error criterion device record are respective, and onOffer the error calculating device.
The error calculating device according to the electric energy metering device of the power supply received, each charging pile andThe electric energy related data of error criterion device solves the global error of the electric energy metering device of power supply, the whole of each charging pile missesDifference and/or charging pile electric energy loss.
The embodiment of the present invention is combined locating for error criterion device by the step-up error standard in existing charging stationEnergy Conservation system completes the foundation of equation, and benefit using the electric energy related data that each charging pile and error criterion device reportThe equation is brought into the electric energy related data of different periods to solve to obtain the whole mistake of the electric energy metering device of power supplyThe global error and/or charging pile electric energy loss of poor, each charging pile.So that operator fills according to the electrical energy measurement of power supplyThe global error of the global error, each charging pile set and/or charging pile electric energy loss confirm that those charging piles are in and work normallyState, and those charging piles needs are adjusted or replace.
One more satisfactory charging pile as shown in fig. 7, have three-phase kilowatt-hour meter and DC meter, however, true feelings simultaneouslyCondition is then that multiple charging piles share one piece of three-phase kilowatt-hour meter, i.e., usual three-phase kilowatt-hour meter is that be arranged on supply input total in charging stationOn line, and each charging pile is all that (in this case, the three-phase kilowatt-hour meter in Fig. 7 is acquisition electric energy from the branch of the busIt is not present).Therefore, the intelligent electric meter of charging pile described in the embodiment of the present invention typically refers to the DC meter in Fig. 7.Certainly, the intelligent electric meter of charging pile described in various embodiments of the present invention, can also in the charging pile of certain different implementationsIt can be the three-phase kilowatt-hour meter in Fig. 7.
In conjunction with the embodiment of the present invention, there are a kind of preferred implementation, the error calculating device retrieval is filled by eachThe energy value or belong to different time according to what each charging pile and error criterion device reported that electric stake and error criterion device reportThe energy value of section determines in the same period while carrying out the least first group of energy value of charging work, and preferentially solves and report thisThe global error and charging pile electric energy loss of the charging pile of first group of energy value.
In conjunction with the embodiment of the present invention, there are a kind of preferred implementation, the error calculating device is also used to will be currentPreferentially solve the global error of the electric energy metering device of the obtained power supply, the whole of one or more charging pile missesDifference and charging pile electric energy loss value bring the equation into, and determine do not solving global error and charging pile alsoWithin the scope of one or more charging pile of electric energy loss, the least second group of electric energy of charging work is carried out in the same period simultaneouslyValue, and preferentially solve the global error and charging pile electric energy loss for reporting the charging pile of second group of energy value;It is progressive according to this to askAll global errors to be solved and charging pile electric energy loss in equation are solved.
It is worth noting that the contents such as information exchange, implementation procedure between module, unit in above system, due toIt is based on same design with processing method embodiment of the invention, for details, please refer to the description in the embodiment of the method for the present invention,Details are not described herein again.
Embodiment 6:
It is described the embodiment of the invention also provides a kind of method of the charging pile electric energy metering error of charging station system verificationCharging station system includes at least one power supply and its electric energy metering device, at least one route equipped with a known universeError electric energy metering device is as error criterion device, one or more charging pile and its electric energy metering device, wherein the mistakePoor computing device receives the respective electric energy that whole electric energy metering devices in the charging station system and error criterion device reportRelated data calculates the whole electric energy metering error of each charging pile according to preset formula model.
The formula model in embodiments of the present invention, specifically: charging station system power supply electricity is described with mathematic(al) representationThe inputing power in source is equal to the equilibrium relationships of each charging pile output electric energy summation, wherein the input of the system power supply power supplyElectric energy is stated by the electric energy metering device reading and global error of power supply, and the output electric energy can be by each charging pileIt is read with the electric energy metering device on route and respective error variance is stated;Wherein, the error variance includes whole missesDifference and charging pile electric energy loss.
In embodiments of the present invention, multiple electric energy metering error variables and loss become in the mathematical modelAmount needs the mathematic(al) representation of multiple and different coefficients of the sum of the no less than described error variance and loss variable number to constitute oneWhole group mathematical equation or mathematic(al) representation, and by the calculating to a whole group mathematic(al) representation, it is calculatedThe measurement error of all electric energy metering devices including all charging pile electric energy metering errors.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of embodiment is can to lead toProgram is crossed to instruct relevant hardware and complete, which can be stored in a computer readable storage medium, storage mediumIt may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random AccessMemory), disk or CD etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the inventionMade any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (4)

CN201610804945.8A2016-09-062016-09-06A kind of method and system of the charging pile electric energy metering error verification of charging stationActiveCN106249193B (en)

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* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN107589391B (en)*2017-07-272020-09-15武汉国测数据技术有限公司Method, device and system for detecting integral error of electric energy metering device
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CN109307852A (en)*2018-09-062019-02-05中国电力科学研究院有限公司 A method and system for determining the measurement error of an electric vehicle charging pile electric energy metering device
CN111999691B (en)*2019-05-272023-06-27深圳电蚂蚁数据技术有限公司Error calibration method and error calibration device for metering sensor device
CN112505386B (en)*2020-08-252022-09-02中国电力科学研究院有限公司Method and system for detecting current value of direct current charging pile
CN112630492B (en)*2020-11-272024-02-09中国电力科学研究院有限公司Electric energy metering device and method for electric automobile charging pile
CN112550029B (en)*2020-11-272023-01-06中国电力科学研究院有限公司Electric energy metering device and method for electric automobile charging pile
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CN113406555A (en)*2021-05-282021-09-17国网浙江省电力有限公司营销服务中心Electric quantity metering error monitoring method of alternating current charging station and charging station
CN114915025A (en)*2022-05-252022-08-16国创能源互联网创新中心(广东)有限公司Fault monitoring method and device for converter equipment and charging pile
CN115166349B (en)*2022-06-012025-05-09国网北京市电力公司 Charging pile line loss estimation method, device and electronic equipment
CN115158076B (en)*2022-07-192024-11-29国网北京市电力公司Metering error evaluation method, metering error evaluation device and computer readable storage medium
CN115542235B (en)*2022-11-072023-08-01北京志翔科技股份有限公司Method, device, equipment and storage medium for determining metering error of charging gun
CN115575884B (en)*2022-11-082023-03-10国网湖北省电力有限公司营销服务中心(计量中心) Alignment of charging pile charging capacity in charging station and calculation method of measurement error
CN119828036B (en)*2025-03-182025-07-01国网山西省电力公司营销服务中心 A DC charging pile abnormality detection method and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS6111680A (en)*1984-06-281986-01-20Keihin Densokuki KkTesting device for normal watt-hour meter instrument error
CN101477185A (en)*2009-02-132009-07-08成都博高科技有限责任公司Evaluation method for measuring accuracy of electric energy meter
CN201514473U (en)*2009-08-262010-06-23武汉国测科技股份有限公司Error positioning device of high-voltage electric power metering device
CN202758062U (en)*2012-07-052013-02-27广东电网公司电力科学研究院Overall metering error detection system of digital transformer station electric energy metering device
CN104218570A (en)*2014-08-212014-12-17国家电网公司Method and system for online evaluating overall measuring errors of electric energy measuring device
CN105699816A (en)*2016-03-082016-06-22北京群菱能源科技有限公司AC charging post calibration device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS6111680A (en)*1984-06-281986-01-20Keihin Densokuki KkTesting device for normal watt-hour meter instrument error
CN101477185A (en)*2009-02-132009-07-08成都博高科技有限责任公司Evaluation method for measuring accuracy of electric energy meter
CN201514473U (en)*2009-08-262010-06-23武汉国测科技股份有限公司Error positioning device of high-voltage electric power metering device
CN202758062U (en)*2012-07-052013-02-27广东电网公司电力科学研究院Overall metering error detection system of digital transformer station electric energy metering device
CN104218570A (en)*2014-08-212014-12-17国家电网公司Method and system for online evaluating overall measuring errors of electric energy measuring device
CN105699816A (en)*2016-03-082016-06-22北京群菱能源科技有限公司AC charging post calibration device

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