CN106443558B - A kind of mobile error criterion device and its detection method for charging pile error-detecting - Google Patents
A kind of mobile error criterion device and its detection method for charging pile error-detecting Download PDFInfo
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- CN106443558B CN106443558B CN201610805022.4A CN201610805022A CN106443558B CN 106443558 B CN106443558 B CN 106443558B CN 201610805022 A CN201610805022 A CN 201610805022A CN 106443558 B CN106443558 B CN 106443558B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Abstract
The present invention relates to charging pile technical fields, provide a kind of mobile error criterion device and detection method for charging pile error-detecting.Wherein electric energy computation chip, radio receiving transmitting module, display screen, memory module and processor are fixed on the console of mobile error criterion device in mobile error criterion device；Console is between power supply interface and vehicle interface；Mechanical lock is additionally provided on console, the tapered end of mechanical lock is located at vehicle interface direction, for living when vehicle interface is inserted into vehicle socket with the mechanical lock slot lock on vehicle socket；Mechanical locked groove is additionally provided on power supply interface.The present invention in existing charging pile by being arranged mobile error criterion device, and Energy Conservation system locating for error criterion device is combined, the electric energy related data that error criterion device itself reported using each sub- ammeter, three-phase kilowatt-hour meter and mobile is detected completes the foundation of equation and solution obtains the electric energy loss of each table.
Description
[technical field]
The present invention relates to charging pile technical fields, more particularly to a kind of mobile error for charging pile error-detecting
Standard and its detection method.
[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 public
It builds in (public building, market, Public Parking etc.) and residential area parking lot or charging station, it can be according to different voltage
Grade 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 filled
Plug is used to charge for electric car.Charging pile generally provides two kinds of charging modes of normal charge and quick charge, Ren Menke
It 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 side
Operation, the charging pile display screens such as formula, charging time, cost data printing can show the data such as charge volume, expense, charging time.
In the case that charging pile is during installation, particularly residential area charging station is separately installed, electrical energy measurement cannot achieve
Error-detecting and monitoring.It needs to send someone to on-site test error or replacement electric energy metering device.
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 charging piles in the prior art during installation, particularly residential area charging station
In the case where separately installed, electric energy metering error detection and monitoring cannot achieve.It needs to send someone to on-site test error or more
Change electric energy metering device, low efficiency, problem at high cost.
The present invention adopts the following technical scheme:
In a first aspect, the present invention provides a kind of mobile error criterion device for charging pile error-detecting, the shifting
Dynamic formula error criterion device includes a power supply interface and a vehicle interface, and the movable type error criterion device further includes electrical energy measurement core
Piece, radio receiving transmitting module, display screen, memory module and processor, wherein the electric energy computation chip, is shown radio receiving transmitting module
Display screen and memory module are separately connected the processor, and the electric energy detection input interface of the electric energy computation chip passes through phase respectively
Energy contact is led in the charging for answering conducting medium to connect the error criterion device, specific:
The electric energy computation chip, radio receiving transmitting module, display screen, memory module and the processor are fixed on the shifting
On the console of dynamic formula error criterion device；The console is between the power supply interface and vehicle interface；The console
On be additionally provided with mechanical lock, the tapered end of the mechanical lock is located at vehicle interface direction, for vehicle interface be inserted into vehicle socket
When lived with the mechanical lock slot lock on vehicle socket；Mechanical locked groove is additionally provided on the power supply interface, the machinery locked groove is used for
It is lockked when charging gun is inserted into the power supply interface with the mechanical lock on the charging gun.
Preferably, the mechanical lock trench bottom of the power supply interface is equipped with pressure sensor, and the pressure sensor is used for
The operation for controlling the mechanical lock of charging gun is passed into the processor, so as to the machinery of processor control vehicle interface side
Lock completes corresponding opening and closing.
Preferably, the mobile error criterion device further includes power supply module, the power supply module connection can power contacts,
And it converts voltages into for the electric energy computation chip, radio receiving transmitting module, display screen, memory module and the normal work of processor
The value of work.
Preferably, the power supply interface and vehicle interface are specially alternating-current charging interface or the power supply interface and vehicle
Interface is specially direct-current charging interface.
Second aspect, the present invention provides a kind of charging pile error detection method based on mobile error criterion device, institutes
Stating charging pile includes that one or more charging gun, each corresponding charging gun are provided with that sub- ammeter, one for measuring input
The three-phase kilowatt-hour meter and rectification module of electric energy, error detection method include:
The power supply interface of the mobile error criterion device is fixed on a charging gun, and its vehicle interface is inserted into vehicle
Socket；
The movable type error criterion device receives the electric energy related data that the three-phase kilowatt-hour meter and sub- ammeter report；
The movable type error criterion device is according to the three-phase kilowatt-hour meter received, the electric energy phase of sub- ammeter and itself detection
Close global error and charging pile electric energy loss that data solve three-phase kilowatt-hour meter, sub- ammeter.
Preferably, the mobile error criterion device is according to the three-phase kilowatt-hour meter, sub- ammeter and itself detection received
Electric energy related data solve each three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss, specifically include:
The mobile energy value that error criterion device receives the three-phase kilowatt-hour meter, sub- ammeter reports, establishing includes three-phase
The global error of ammeter, the global error of sub- ammeter and charging pile electric energy loss are as variable and itself error amount as
Know the equation of constant；
The movable type error criterion device is reported according to multiple received three-phase kilowatt-hour meter, sub- ammeter and itself detection
The energy value arrived, or according to three-phase kilowatt-hour meter, sub- ammeter reports and what itself was detected belongs to electricity in different time periods
Energy value establishes the equation group being made of the equation；By solving the equation group, the three-phase kilowatt-hour meter and son electricity is calculated
The global error and charging pile electric energy loss of table.
Preferably, the mobile error criterion device is according to the three-phase kilowatt-hour meter, sub- ammeter and itself detection received
Electric energy related data solve each three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss, specifically include:
It is described that mobile error criterion device receives the three-phase kilowatt-hour meter, sub- ammeter reports and the electric energy of itself detection
Value and corresponding current value, according to the electric flux accumulated value under the cumulative obtained each current segmenting of line current segmentation of different sizes；
The global error comprising three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy damage are established by the electric flux accumulated value
Equation of the consumption as variable and the mobile error criterion device error amount as known constant；
It is that the movable type error criterion device is reported according to the repeatedly received three-phase kilowatt-hour meter, sub- ammeter and itself
The electric energy related data of detection, or reported according to the three-phase kilowatt-hour meter, sub- ammeter and itself detection belong to difference
The electric energy related data of period establishes the equation group being made of the equation；By solving the equation group, institute is calculated
State the global error and corresponding charging pile electric energy loss value of three-phase kilowatt-hour meter, sub- ammeter under each current segmenting.
Preferably, the mobile error criterion device is retrieved when solving the equation by three-phase kilowatt-hour meter, sub- ammeter
Report and itself detection energy value, or reported according to three-phase kilowatt-hour meter, sub- ammeter and itself detection belong to
Energy value in different time periods determines in the same period while carrying out the least first group of energy value of gage work, and preferentially asks
Solution reports the global error and charging pile electric energy loss of the three-phase kilowatt-hour meter of first group of energy value, sub- ammeter.
Preferably, the method also includes:
The global error value of three-phase kilowatt-hour meter, sub- ammeter that current preference solves and charging pile electric energy loss value are brought into
The equation, and determine in one or more the sub- ammeter model for not solving global error and charging pile electric energy loss also
In enclosing, the least second group of energy value of charging work is carried out simultaneously in the same period, and preferentially solves and reports second group of electric energy
The global error and charging pile electric energy loss of the sub- ammeter of value；Circulation has solved all entirety to be solved in equation and has missed according to this
Difference and charging pile electric energy loss.
Preferably, described by solving the equation group, the global error and charging of each three-phase kilowatt-hour meter, sub- ammeter is calculated
Stake electric energy loss, specifically includes:
Preset one group of initial error amount, the error variance to be solved for being assigned in equation group, wherein it is described to
The error variance of solution includes the three-phase kilowatt-hour meter, the global error of sub- ammeter and 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 adjust
The 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 obtained
Value 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 variable
Body error amount and charging pile electric energy loss value.
Preferably, described by solving the equation group, each three-phase kilowatt-hour meter, sub- ammeter is calculated under each current segmenting
Global error and corresponding charging pile electric energy loss value, 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 to
The error variance of solution includes the global error and corresponding charging pile electric energy of the three-phase kilowatt-hour meter, sub- ammeter under each current segmenting
Loss value；
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 adjust
The 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 obtained
Value or charging pile electric energy loss value；
Mode is solved according to the above-mentioned object to be solved for the first round, successively obtains other errors in the grouping error variable
The respective global error value of variable and charging pile electric energy loss value.
Compared with prior art, pass through to be arranged in existing charging pile the beneficial effects of the present invention are: the present invention and move
Dynamic formula error criterion device, and Energy Conservation system locating for error criterion device is combined, it is reported using each sub- ammeter, three-phase kilowatt-hour meter
The foundation of equation is completed with the electric energy related data that mobile error criterion device itself detects, and utilizes the electricity of different periods
Energy related data brings the equation into and solves to obtain three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss.With
Just operator confirms whether the charging pile is in just according to three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss
Normal working condition.
[Detailed description of the invention]
Fig. 1 is a kind of structure of mobile error criterion device for charging pile error-detecting provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 is a kind of structure of mobile error criterion device for charging pile error-detecting provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is a kind of structure of mobile error criterion device for charging pile error-detecting provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is a kind of shielding of mobile error criterion device for charging pile error-detecting provided in an embodiment of the present invention
Electromagnetic interference structure schematic diagram；
Fig. 5 is a kind of method flow diagram for charging pile error-detecting provided in an embodiment of the present invention；
Fig. 6 is a kind of loss on transmission schematic illustration provided in an embodiment of the present invention；
Fig. 7 is a kind of method flow diagram for charging pile error-detecting provided in an embodiment of the present invention；
Fig. 8 is a kind of method flow diagram for charging pile error-detecting provided in an embodiment of the present invention；
Fig. 9 is a kind of method flow diagram for charging pile error-detecting 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, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It 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 not
Constituting conflict can be combined with each other.
Embodiment 1:
The embodiment of the invention provides a kind of mobile error criterion devices for charging pile error-detecting, such as Fig. 1-2 institute
Show, it is described movable type error criterion device include a power supply interface and a vehicle interface, and the correspondence of two interfaces lead can contact by
Conducting medium complete one by one interface docking, it is described movable type error criterion device further include electric energy computation chip, radio receiving transmitting module,
Display screen, memory module and processor, wherein the electric energy computation chip, radio receiving transmitting module, display screen and memory module point
The processor is not connected, and the electric energy detection input interface of the electric energy computation chip passes through corresponding conducting medium connection institute respectively
Energy contact is led in the charging for stating error criterion device, specific:
The electric energy computation chip, radio receiving transmitting module, display screen, memory module and the processor are fixed on the shifting
On the console of dynamic formula error criterion device；The console is between the power supply interface and vehicle interface；The console
On be additionally provided with mechanical lock, the tapered end of the mechanical lock is located at vehicle interface direction, for vehicle interface be inserted into vehicle socket
When lived with the mechanical lock slot lock on vehicle socket；Mechanical locked groove is additionally provided on the power supply interface, the machinery locked groove is used for
It is lockked when charging gun is inserted into the power supply interface with the mechanical lock on the charging gun.
The embodiment of the present invention combines error criterion device by the way that mobile error criterion device is arranged in existing charging pile
Locating Energy Conservation system, what error criterion device itself reported using each sub- ammeter, three-phase kilowatt-hour meter and mobile was detected
Electric energy related data completes the foundation of equation, and brings the equation into using the electric energy related data of different periods and solve
To three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss.So that operator is according to three-phase kilowatt-hour meter, sub- ammeter
Global error and charging pile electric energy loss confirm whether the charging pile is in normal operating conditions.
Movable type error criterion device provided by the embodiment of the present invention is more likely to be available to Bureau of Technical Supervision personnel prison
Law enforcement is superintended and directed to use, it therefore, be in view of that may need that the mobile error criterion device is fixed on a certain charging gun for a long time
On, to complete fairly large data acquisition.Therefore, in conjunction with the embodiment of the present invention 1 there is also a kind of preferred implementation,
It can be realized and operate the opening and closing of the mechanical lock on script charging gun, be mounted with the mobile error criterion device
Afterwards, the mechanical lock for mapping directly to the vehicle interface side of the mobile error criterion device completes corresponding opening and closing.Tool
Body, the mechanical lock trench bottom of the power supply interface is equipped with pressure sensor, and the pressure sensor will be for that will control charging
The operation of the mechanical lock of rifle passes to the processor, so that the mechanical lock of processor control vehicle interface side is completed accordingly
Opening and closing.The mode of the mechanical lock of processor control vehicle interface side can be as shown in Figure 3 (to should in figure
There is no all draw for the structure that preceding Outline is not directly relevant to), mechanical lock is made of mechanical lock head and mechanical hammerlock, and
It is provided with shaft between the two；Wherein, it is provided with sheet metal on mechanical hammerlock, is provided with electromagnet immediately below the sheet metal,
The electromagnet works under the control of a processor；It is additionally provided with spring on the machinery hammerlock, the spring user exists
In the idle situation of electromagnet, guarantee that mechanical lock head has a downward active force.Its workflow specifically: work as user
When control charging gun bounces its mechanical lock, pressure sensor feedback pressure signal confirms charging gun to processor, processor in Fig. 3
Mechanical lock bounced, then the power switch of closing electromagnets so that electromagnet enters working condition, adsorb mechanical hammerlock from
And mechanical lock head shown in Fig. 3 is bounced, reach on mobile error criterion device that mechanical lock is held on mechanical lock and charging gun
The purpose of row simultaneously operating.For the operating experience of user, an adapter has only been had more on traditional charging gun,
And the mode for completing charging interface connection for user does not change.
In conjunction with the embodiment of the present invention, there are a kind of preferred implementation, as shown in figure 4, the electric energy computation chip and
Therewith the connected conducting medium position of electric energy detection input interface by the shielding case of maskable electromagnetic interference nesting, the shielding
Four outlets and the data conductor port for sending a signal to processor that the conducting medium is only reserved on shell.
The electromagnetic interference that the preferred embodiment can effectively reduce external or internal generation completes electricity to electric energy computation chip
It can be influenced caused by metering, ensure that the precision of mobile error criterion device measurement.Fig. 4 is only a schematic diagram, specifically
The structure size explanation that can be adjusted according to the size of actual chips size and the conducting medium, and refer to be described
Electric energy computation chip is preferably disposed between two conducting mediums of measurement, to reduce electric energy detection input interface and conducting medium
Between cabling length, further increase counting accuracy.It should be noted that the two pairs of contacts connected in Fig. 4 by conducting medium,
It is respectively that AC power source " L " and middle line " N " (can consult alternating-current charging interface standard GB/T 20234.2- in AC charging rifle
2011)；It is respectively that DC power supply positive " DC+ " and DC power supply bear " DC- " and (can consult alternating-current charging interface in DC charging rifle
Standard GB/T 20234.3-2011).
The mobile error criterion device that the embodiment of the present invention is proposed can be by built-in battery-operated, can also be by
Charging gun can power contacts complete charging or directly power supply.Specifically, the movable type error criterion device further includes power supply
Module, power supply module connection can power contacts, and convert voltages into for the electric energy computation chip, wireless receiving and dispatching mould
The value that block, display screen, memory module and processor work normally.
In embodiments of the present invention, the power supply interface and vehicle interface are specially alternating-current charging interface or the confession
Electrical interface and vehicle interface are specially direct-current charging interface.The schematic diagram provided in Fig. 1 the i.e. movement of alternating-current charging interface mode
Formula error criterion device, DC mode can be realized by adjusting interface.
Embodiment 2:
The embodiment of the present invention is in addition to providing a kind of mobile error for charging pile error-detecting as described in Example 1
Outside standard structure, a kind of charging pile error detection method based on mobile error criterion device is additionally provided, as shown in figure 5,
It is described that detection method includes the following steps:
In step 201, the power supply interface of the mobile error criterion device is fixed on a charging gun, and by its vehicle
Interface is inserted into vehicle socket, to realize that the electric energy between the charging gun and battery pack in electric vehicle is connected.
In step 202, the mobile error criterion device receives the electric energy phase that the three-phase kilowatt-hour meter and sub- ammeter report
Close data.
Wherein, electric energy related data include electric energy measurement data, current segmenting data, time data, charging pile mark in
One or more.
In step 203, the mobile error criterion device according to receive the three-phase kilowatt-hour meter, sub- ammeter and itself
The electric energy related data of detection solves the global error and charging pile electric energy loss of three-phase kilowatt-hour meter, sub- ammeter.
Wherein, the electric energy loss of charging pile can be the damage of itself intelligence system of line loss, loss on transmission, rectifier loss and charging pile
One or more of consumption.
The embodiment of the present invention is combined locating for error criterion device by the step-up error standard in existing charging pile
Energy Conservation system completes equation using the electric energy related data that each sub- ammeter, three-phase kilowatt-hour meter and error criterion device report
It establishes, and brings the equation into using the electric energy related data of different periods and solve to obtain the entirety of three-phase kilowatt-hour meter, sub- ammeter
Error and charging pile electric energy loss.So that operator damages according to three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy
Consumption confirms whether the charging pile is in normal operating conditions.
In conjunction with the embodiment of the present invention, for the step 203, there are a kind of preferred implementations, specifically include:
The mobile energy value that error criterion device receives the three-phase kilowatt-hour meter, sub- ammeter reports, establishing includes three-phase
The global error of ammeter, the global error of sub- ammeter and charging pile electric energy loss are as variable and itself error amount as
Know the equation of constant；
The movable type error criterion device is reported according to multiple received three-phase kilowatt-hour meter, sub- ammeter and itself detection
The energy value arrived, or according to three-phase kilowatt-hour meter, sub- ammeter reports and what itself was detected belongs to electricity in different time periods
Energy value establishes the equation group being made of the equation；By solving the equation group, the three-phase kilowatt-hour meter and son electricity is calculated
The global error and charging pile electric energy loss of table.
Based on the above-mentioned preferred implementation scheme for step 203, and to the intelligence electricity for completing electrical energy measurement on charging pile
The research of table, confirmation intelligent electric meter (on a charging pile, flow through electric current in the case where flowing through the metering environment of different size electric current
It can be determined according to the operating mode that it possesses, such as: 450V charge mode, 750 charge modes etc. correspond to different works
Make electric current), the global error shown is different, i.e., different measurement electric currents is suitable for different global error values, because
There is a kind of mode of more accurate solution global error in conjunction with step 202 of the embodiment of the present invention in this, specific as follows:
It is described that mobile error criterion device receives the three-phase kilowatt-hour meter, sub- ammeter reports and the electric energy of itself detection
Value and corresponding current value, according to the electric flux accumulated value under the cumulative obtained each current segmenting of line current segmentation of different sizes；
The global error comprising three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy damage are established by the electric flux accumulated value
Equation of the consumption as variable and the mobile error criterion device error amount as known constant；
It is that the movable type error criterion device is reported according to the repeatedly received three-phase kilowatt-hour meter, sub- ammeter and itself
The electric energy related data of detection, or reported according to the three-phase kilowatt-hour meter, sub- ammeter and itself detection belong to difference
The electric energy related data of period establishes the equation group being made of the equation；By solving the equation group, institute is calculated
State the global error and corresponding charging pile electric energy loss value of three-phase kilowatt-hour meter, sub- ammeter under each current segmenting.
Embodiment 3:
This implementation implements the environment of parameter in the content basis of embodiment 2, by being related to, and illustrates how to calculate and fill
Electric stake electric energy loss.In this example, it is assumed that transforming plant lead-in is four tunnel of three-phase (single-phase is 380V), and after power transformation it is two
A 450V direct current output.The equipment in error criterion device and charging pile for completing electrical energy measurement is known as in the present embodiment
Electric energy metering device, substation's schematic diagram as shown in fig. 6, according to law of conservation of energy, the electric energy of high-pressure side input be equal in, it is low
Press the sum of electric energy and the charging pile electric energy loss of 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 of transformer loss electric energy and high-pressure side inputing power
Value.
If constituting equation with formula (1) or even equation group, obtained equation group will be a homogeneous equations, this is neat
Power, 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 equation
Property ", so that equation group can obtain " unique solution ".Specifically, when actual measurement, we are high, medium and low any
The 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 one
As 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 side
It 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-reading
It 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--- charging pile electric energy loss 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 read energy data using input terminal " current segmenting "
Method, detect the true global error of electric energy metering device.While having surveyed the error of electric energy metering device quasi-, transformation
Device loss also can be measured accurately.
Embodiment 4:
How related to the electric energy that itself is detected according to the three-phase kilowatt-hour meter, the sub- ammeter that receive embodiment 2 describes
Data solve the method that three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss calculate.However, being solved really
Cheng Zhonghui because in intelligent electric meter accuracy and/or charging pile on charging pile the energy consumption unit such as display screen for running presence,
Cause the equation finally constructed that can not solve the global error value and charging pile electric energy loss value of each charging pile.Therefore, it ties
The embodiment of the present invention 2 is closed, the embodiment of the present invention proposes a kind of optimization algorithm to solve the above problems, as shown in fig. 7, specific packet
Include following steps:
In step 2021, one group of initial error amount is preset, the error to be solved for being assigned in equation group becomes
Amount, wherein the error variance to be solved includes the three-phase kilowatt-hour meter, the global error of sub- ammeter and 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 solved
Object 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 conditions
As 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 solved
The 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 error
Respective global error value and charging pile electric energy loss value in variable.
Embodiment 6:
How related to the electric energy that itself is detected according to the three-phase kilowatt-hour meter, the sub- ammeter that receive embodiment 2 describes
Data solve the method that three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss calculate.However, being solved really
Cheng Zhonghui because in intelligent electric meter accuracy and/or charging pile on charging pile the energy consumption unit such as display screen for running presence,
Cause the equation finally constructed that can not solve the global error value and charging pile electric energy loss value of each charging pile.Therefore, it ties
The preferred implementation scheme of the embodiment of the present invention 2 is closed, the embodiment of the present invention proposes a kind of optimization algorithm to solve the above problems, such as
Shown in Fig. 8, specifically includes the following steps:
In step 2021 ' in, one group of initial error amount is preset, the error to be solved for being assigned in equation group becomes
Amount, wherein the error variance to be solved include global error under each current segmenting of the three-phase kilowatt-hour meter, sub- ammeter and
Corresponding charging pile electric energy loss value.
In step 2022 ' in, one by one choose an error variance as first from the grouping error variable to be solved
Take turns object 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 ' in, by comparing the object to be solved obtained function meter under different value conditions
It calculates as a result, gradually adjusting the value of the object to be solved.
In step 2024 ' in, when the deviation of two function calculated results is less than preset threshold, obtain described to be solved
The global error value or charging pile electric energy loss value of object.
In step 2025 ' in, mode is solved according to the above-mentioned object to be solved for the first round, successively obtains the grouping error
The respective global error value of other error variances and charging pile electric energy loss value in variable.
Embodiment 6:
In the embodiment of the present invention 2, a kind of charging pile error detection method based on mobile error criterion device is provided, so
And its calculation method does not make full use of the handling characteristics and its electricity reported of charging pile charging during specific implementation
The characteristic of energy related data itself, wherein the use of the charging gun on charging pile is intermittent and is discrete, and is supervised
Controlling electric energy related data received by unit, there may be only 1 or 2 charging guns to work within the same period
(such as: more deserted period such as midnight), if preferentially calculating the entirety of 1 or 2 charging pile according to the special circumstances
Error and charging pile electric energy loss, and bring global error and charging pile electric energy that original equation formula carries out other sub- ammeters into turn
Loss solves, this will greatly simplify calculation amount, and can effectively improve computational efficiency.Therefore, also in conjunction with the embodiment of the present invention 2
There are a kind of efficient solution throughways.As shown in figure 9, specifically comprising the following steps:
In step 301, the mobile error criterion device is retrieved when solving the equation by three-phase kilowatt-hour meter, son
It is that ammeter reports and itself detection energy value, or reported according to three-phase kilowatt-hour meter, sub- ammeter and itself detection
Belong to energy value in different time periods.
In step 302, it determines in the same period while carrying out the least first group of energy value of gage work, and preferentially ask
Solution reports the global error and charging pile electric energy loss of the three-phase kilowatt-hour meter of first group of energy value, sub- ammeter.
Such as: charging pile is there are two charging gun A and charging gun B, then the gage work least the in step 302
One group of energy value theoretically only charging gun A and the mobile error criterion device being mounted on charging gun A work, or only charge
Rifle B and the mobile error criterion device being mounted on charging gun B work；And corresponding first group of energy value specifically: with three-phase
The electric energy of the energy value of ammeter metering, the energy value of the sub- ammeter metering of corresponding charging gun A and mobile error criterion device metering
It is worth the one group of energy value constituted；Either with the electric energy of the energy value of three-phase kilowatt-hour meter metering, the sub- ammeter metering of corresponding charging gun B
One group of energy value that the energy value of value and mobile error criterion device metering is constituted.
In step 303, global error value and the charging pile electricity of the three-phase kilowatt-hour meter, sub- ammeter that current preference are solved
Energy loss value brings the equation into.
In step 304, it and determines do not solving one of global error and charging pile electric energy loss or more also
Within the scope of a sub- ammeter, the least second group of energy value of charging work is carried out simultaneously in the same period, and preferentially solves and reports this
The global error and charging pile electric energy loss of the sub- ammeter of second group of energy value.
In step 305, circulation has solved all global errors to be solved and charging pile electric energy damage in equation according to this
Consumption.
It is worth noting that in information exchange, implementation procedure between module, unit in above-mentioned apparatus and system etc.
Hold, due to being based on same design with processing method embodiment of the invention, particular content be can be found in embodiment of the present invention method
Narration, details are not described herein again.
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 to
Program is crossed to instruct relevant hardware and complete, which can be stored in a computer readable storage medium, storage medium
It may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access
Memory), 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 invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of mobile error criterion device for charging pile error-detecting, which is characterized in that the movable type error criterion
Device includes a power supply interface and a vehicle interface, and the movable type error criterion device further includes electric energy computation chip, wireless receiving and dispatching
Module, display screen, memory module and processor, wherein the electric energy computation chip, radio receiving transmitting module, display screen and storage
Module is separately connected the processor, and the electric energy detection input interface of the electric energy computation chip passes through corresponding conducting medium respectively
Energy contact is led in the charging for connecting the error criterion device, specific:
The electric energy computation chip, radio receiving transmitting module, display screen, memory module and the processor are fixed on the movable type
On the console of error criterion device；The console is between the power supply interface and vehicle interface；On the console also
Be provided with mechanical lock, the tapered end of the mechanical lock is located at vehicle interface direction, for vehicle interface be inserted into vehicle socket when with
Mechanical lock slot lock on vehicle socket is lived；Mechanical locked groove is additionally provided on the power supply interface, the machinery locked groove is for filling
It is lockked when electric rifle is inserted into the power supply interface with the mechanical lock on the charging gun.
2. movable type error criterion device according to claim 1, which is characterized in that the mechanical lock slot bottom of the power supply interface
Portion is equipped with pressure sensor, and the pressure sensor is used to the operation for the mechanical lock for controlling charging gun passing to the processing
Device, so that the mechanical lock of processor control vehicle interface side completes corresponding opening and closing.
3. movable type error criterion device according to claim 1, which is characterized in that the movable type error criterion device also wraps
Include power supply module, the power supply module connection can power contacts, and convert voltages into for the electric energy computation chip, wireless
The value that transceiver module, display screen, memory module and processor work normally.
4. movable type error criterion device according to claim 1 to 3, which is characterized in that the power supply interface and vehicle
Interface is specially alternating-current charging interface or the power supply interface and vehicle interface is specially direct-current charging interface.
5. a kind of charging pile error detection method based on mobile error criterion device, the charging pile includes one or more
Charging gun, each corresponding charging gun be provided with sub- ammeter, one for measuring the three-phase kilowatt-hour meter and rectification module of inputing power,
It is characterized in that, error detection method includes:
The power supply interface of the mobile error criterion device is fixed on a charging gun, and its vehicle interface insertion vehicle is inserted
Seat；
The movable type error criterion device receives the electric energy related data that the three-phase kilowatt-hour meter and sub- ammeter report；
The movable type error criterion device is according to the three-phase kilowatt-hour meter received, the electric energy dependency number of sub- ammeter and itself detection
According to the global error and charging pile electric energy loss for solving three-phase kilowatt-hour meter, sub- ammeter.
6. charging pile error detection method according to claim 5, which is characterized in that the movable type error criterion device root
Each three-phase kilowatt-hour meter, sub- ammeter are solved according to the electric energy related data of the three-phase kilowatt-hour meter, sub- ammeter and itself detection that receive
Global error and charging pile electric energy loss, specifically include:
The mobile energy value that error criterion device receives the three-phase kilowatt-hour meter, sub- ammeter reports, establishing includes three-phase kilowatt-hour meter
Global error, the global error of sub- ammeter and charging pile electric energy loss as variable and itself error amount as it is known often
Several equations；
The movable type error criterion device according to repeatedly received three-phase kilowatt-hour meter, sub- ammeter reports and itself is detected
Energy value, or according to three-phase kilowatt-hour meter, sub- ammeter reports and what itself was detected belongs to energy value in different time periods
Establish the equation group being made of the equation；By solving the equation group, the three-phase kilowatt-hour meter and sub- ammeter is calculated
Global error and charging pile electric energy loss.
7. charging pile error detection method according to claim 5, which is characterized in that the movable type error criterion device root
Each three-phase kilowatt-hour meter, sub- ammeter are solved according to the electric energy related data of the three-phase kilowatt-hour meter, sub- ammeter and itself detection that receive
Global error and charging pile electric energy loss, specifically include:
It is described it is mobile error criterion device receives the three-phase kilowatt-hour meter, sub- ammeter reports and the energy value of itself detection and
Corresponding current value, according to the electric flux accumulated value under the cumulative obtained each current segmenting of line current segmentation of different sizes；Pass through
The electric flux accumulated value is established the global error comprising three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss and is made
Equation for variable and the mobile error criterion device error amount as known constant；
The movable type error criterion device is reported according to the multiple received three-phase kilowatt-hour meter, sub- ammeter and itself detection
Electric energy related data, or reported according to the three-phase kilowatt-hour meter, sub- ammeter and itself detection belong to different time
The electric energy related data of section establishes the equation group being made of the equation；By solving the equation group, it is calculated described three
The global error and corresponding charging pile electric energy loss value of phase ammeter, sub- ammeter under each current segmenting.
8. charging pile error detection method according to claim 6 or 7, which is characterized in that the movable type error criterion
Device retrieves energy value reported by three-phase kilowatt-hour meter, sub- ammeter and itself detection, Huo Zhegen when solving the equation
It is being reported according to three-phase kilowatt-hour meter, sub- ammeter and itself detection to belong to energy value in different time periods, it determines in the same period
The least first group of energy value of gage work is carried out simultaneously, and preferentially solves three-phase kilowatt-hour meter, the son for reporting first group of energy value
The global error and charging pile electric energy loss of ammeter.
9. charging pile error detection method according to claim 8, which is characterized in that the method also includes:
The global error value of three-phase kilowatt-hour meter, sub- ammeter that current preference solves and charging pile electric energy loss value are brought into described
Equation, and determine in one or more the sub- ammeter range for not solving global error and charging pile electric energy loss also
It is interior, the least second group of energy value of charging work is carried out simultaneously in the same period, and preferentially solve and report second group of energy value
Sub- ammeter global error and charging pile electric energy loss；Circulation has solved all global errors to be solved in equation according to this
With charging pile electric energy loss.
10. charging pile error detection method according to claim 6, which is characterized in that it is described by solving the equation group,
Each three-phase kilowatt-hour meter, the global error of sub- ammeter and charging pile electric energy loss is calculated, specifically includes:
Preset one group of initial error amount, the error variance to be solved for being assigned in equation group, wherein described to be solved
Error variance include the three-phase kilowatt-hour meter, the global error of sub- ammeter and 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 its
Its error variance regards as known object then using the preset error amount as parameter；
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 described in adjustment
The value of object to be solved；
Until two function calculated results deviation be less than preset threshold when, obtain the object to be solved global error value or
Person's charging pile electric energy loss value；
Mode is solved according to the above-mentioned object to be solved for the first round, respective entirety in the grouping error variable is successively obtained and misses
Difference and charging pile electric energy loss value.
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