CN109061291A - A kind of method of calibration of embedded On-line sampling system charging pile electric energy error - Google Patents

A kind of method of calibration of embedded On-line sampling system charging pile electric energy error Download PDF

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Publication number
CN109061291A
CN109061291A CN201810652699.8A CN201810652699A CN109061291A CN 109061291 A CN109061291 A CN 109061291A CN 201810652699 A CN201810652699 A CN 201810652699A CN 109061291 A CN109061291 A CN 109061291A
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CN
China
Prior art keywords
charging pile
charging
adapter
electric energy
calibration
Prior art date
Application number
CN201810652699.8A
Other languages
Chinese (zh)
Inventor
陈祉如
代燕杰
李付存
徐新光
董贤光
王平欣
张志�
李琮琮
杜艳
朱红霞
王清
Original Assignee
国网山东省电力公司电力科学研究院
国家电网有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 国网山东省电力公司电力科学研究院, 国家电网有限公司 filed Critical 国网山东省电力公司电力科学研究院
Priority to CN201810652699.8A priority Critical patent/CN109061291A/en
Publication of CN109061291A publication Critical patent/CN109061291A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00Arrangements for measuring time integral of electric power or current, e.g. by electricity meters
    • G01R22/06Arrangements for measuring time integral of electric power or current, e.g. by electricity meters by electronic methods
    • G01R22/10Arrangements for measuring time integral of electric power or current, e.g. by electricity meters by electronic methods using digital techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the preceding groups
    • G01R35/04Testing or calibrating of apparatus covered by the preceding groups of instruments for measuring time integral of power or current

Abstract

The purpose of the present invention is to provide a kind of methods of calibration of embedded On-line sampling system charging pile electric energy error, are used for the technical issues of solving to charging pile electric energy error real-time online measuring.One end of adapter is equipped with charging gun plug, and the other end is equipped with charging gun socket, and adapter embeds tester;Charging gun connects charging pile and power load by adapter;Tester and adapter wireless server are wirelessly connected, and charging pile is connect with its background server;It verifies computer and wirelessly carries out data interaction with adapter wireless server and charging pile background server, verification computer realizes the verification of electricity error by the way that the collected data of adapter wireless server are compared with the data that charging charging pile background server obtains.Invention is light-weight the utility model has the advantages that small in size, adapts to the needs of market development.

Description

A kind of method of calibration of embedded On-line sampling system charging pile electric energy error

Technical field

The present invention relates to charging pile detection technique field, specifically a kind of embedded On-line sampling system charging pile electricity The method of calibration of energy error.

Background technique

As time goes on, electric car come into operation it is more and more extensive.Corresponding is building rapidly for charging station If being mounted on for charging pile is continuously increased.From the specified rule for pushing electric car and its relevant industries development in country's in March, 2009 Fixed, charging equipment is also included in interior." electric car charging infrastructure develops guide (2015~2020 for National Development and Reform Committee Year) " display, the target of China's charging infrastructure development is " to the year two thousand twenty, to build up concentration electric charging station 1.2 ten thousand, dispersion is filled Electric stake 4,800,000 ".Under the guidance of policy, the construction projects such as electric automobile charging pile are quickly grown, but the quantity of charger And distribution is still unsatisfactory for the current demand of electric car.According to the existing development of charger industry, there is associated mechanisms estimation, not Carrying out domestic charger industry yield will increase substantially, and average growth rate per annum will be maintained at 10% or so.But for charger this Kind new energy develops the emerging product of bring, is in blank or starting stage to the test of its electric energy, charging and function.Especially The on-the-spot test of the third-party institution, the whole nation only has extremely individual pilots being probed at present, and for charging pile electric energy error Real-time online measuring, this part are still belonging to blank at present.

The detection device of current charging pile, research and development are in the starting stage, although concerned countries measurement verification regulations have been sent out Cloth is implemented, but since the solution that major producer proposes is all different, and there is some general character: volume is big, weight weight, Can not real-time online monitoring, cause energy waste etc..User needs to keep always to be looked at beside equipment, and needs are right in real time Equipment is operated.Since the detection device of part of the manufacturer can not also move, the case where tester can not leave is caused. Meanwhile using load box as charging energy consumption equipment, huge energy waste is caused, the original intention of new energy is not met.Meanwhile it is right Also there is certain necessity in the real-time verification of charging pile, this method can preferably reflect 24 hours actual motions of charging pile State can more fully detect the electric energy and charging error condition of charging pile especially for there are the places of the more rates of electricity price.

Summary of the invention

The purpose of the present invention is to provide a kind of methods of calibration of embedded On-line sampling system charging pile electric energy error, use In solve to charging pile electric energy error real-time online measuring the technical issues of.

The technical scheme adopted by the invention to solve the technical problem is that:

A kind of method of calibration of embedded On-line sampling system charging pile electric energy error, comprising: adapter, the one of adapter End is equipped with charging gun plug, and the other end is equipped with charging gun socket, and adapter embeds tester;Charging gun is filled by adapter connection Electric stake and power load;Tester and adapter wireless server are wirelessly connected, and charging pile is connect with its background server;

It verifies computer and wirelessly carries out data interaction with adapter wireless server and charging pile background server, Verification computer is compared by the data obtained to the collected data of adapter wireless server with charging pile background server It is right, realize the verification of electricity error.

Further, the tester is connect by 4G wireless network with adapter wireless server.

Further, the charging pile is direct-current charging post or alternating-current charging pile.

Further, the power load is electric car.

A kind of built-in tester for On-line sampling system charging pile electric energy error method of calibration, including front end conversion Device, multichannel analog-digital converter, memory, reference clock, power module, 4G module and processor, processor are handled using ARM Device.

Further, the charging pile is direct-current charging post;The front end converter is turned current signal using current divider Voltage signal output is turned to, platinum resistance is used to divide to obtain small voltage output as partial pressure device.

Further, the charging pile is direct-current charging post;The multichannel analog-digital converter uses SigmaDelta type 24 analog-digital converters guarantee DC measurement precision simultaneously, also inhibit to the High-frequency Interference of input signal.

Further, the charging pile is alternating-current charging pile;Front end converter is converted high current signal using mutual inductor For low current signal, platinum resistance is used to divide to obtain small voltage output as partial pressure device.

Further, the charging pile is alternating-current charging pile;The power module uses ACDC converter, is converted into suitable The power supply that tester uses.

The effect provided in summary of the invention is only the effect of embodiment, rather than invents all whole effects, above-mentioned A technical solution in technical solution have the following advantages that or the utility model has the advantages that

(1) present invention in charging gun adapter it is small in size, light-weight feature greatly improve equipment portability and Ease for use provides more possibility for the different outdoor environments such as Portable device to charging pile erecting bed, adapts to market hair The needs of exhibition.Meanwhile simple, the convenient detection environment that can be also competent at charging pile calibrating scene of wiring.Since the program is logical Wirelessly transmitting data is crossed, so that it is easier to remotely monitor compared with traditional checkschema.Since design volume is small, to charging gun Pipette tips no particular/special requirement compared with general pipette tips, so that the batch micro operations cost of the program is lower.

(2) adapter is in direct string inlet wire road, and load is also directly to use electric car, closer to actual use.User Acceptance is higher, experimental result is influenced also smaller.Meanwhile because energy is not present using electric car as loading Waste, meets national energy conservation and emission reduction theory.

(3) adapter is connected on charging gun by this method, and adapter embeds tester, and tester passes through on 4G network Data are passed to adapter server-side, computer obtains the measuring state of current tester from adapter server-side, and from charging pile Background server obtains the operating parameter of the current charging pile, it can be achieved that 24 hours real-time online electricity errors monitor.

Detailed description of the invention

Fig. 1 is the overall system diagram of the embodiment of the present invention

Fig. 2 is tester structure principle chart

In figure: 1. charging piles;2. adapter;3. electric car;4. charging pile background server;5. adapter wireless service Device;6. computer;7. front end converter;8. multichannel analog-digital converter;9. memory;10. reference clock;11. power module; 12.4G module;13. processor.

Specific embodiment

In order to clearly illustrate the technical characterstic of this programme, below by specific embodiment, and its attached drawing is combined, to this Invention is described in detail.It should be noted that illustrated component is not drawn necessarily to scale in the accompanying drawings.Present invention omits right Known assemblies and technical description are to avoid being unnecessarily limiting the present invention.

As shown, a kind of method of calibration of embedded On-line sampling system charging pile electric energy error, be related to charging pile 1, Adapter 2, electric car 3, charging pile background server 4, adapter wireless server 5 and computer 6.Adapter 2 is using embedding Enter formula scheme, both ends are connector, and one end is charging gun plug that meet national standards, and other end is to meet national standard Charging gun socket.Adapter 2 embeds tester, and tester uploads data to adapter wireless server 5 by 4G network.Electricity Brain 6 obtains the measuring state of current tester from adapter wireless server 5, and obtains currently from charging pile background server 4 The operating parameter of the charging pile 1 is analyzed by the comparison to two groups of data, to realize the online reality of 1 electricity error of charging pile When verify.

The practical monitoring for being charging pile service provider of charging pile background server 4 from the background, can be carried out by interface provided herein The reading data of charging pile 1.Adapter wireless server 5 is interacted by 4G network with tester, and 6 backstage of computer is by turning The detection data of the acquisition tester of connector wireless server 5.

The tester includes processor 13, multichannel analog-digital converter 8, front end converter 7, deposits memory 9, reference clock 10, power module 11 and 4G module 12.

Wherein, processor 13 uses arm processor.Memory 9 uses mass memory module, tests for storing Number of passes evidence;Also, test data can be saved when 4G wireless network exception, when waiting 4G wireless network good for use again Data are uploaded.Mass memory module is designed using nonvolatile semiconductor memory member, can store multiple detected The charging voltage curve of journey, charging current curve, rechargeable electrical energy curve etc., while also saving the result after the completion of calibrating;Power down After can be saved, upload data validation after just data are deleted.Reference clock 10 uses high stability, high-precision Clock crystal, guarantee that the accuracy of clock is small as far as possible by the drift effect of temperature, guarantee clock when carrying out electrical energy measurement Accuracy.In addition, front end converter 7, multichannel analog-digital converter 8, power module 11 will be set according to the type of charging pile 1 Meter.Charging pile 1 is divided to for direct-current charging post and two kinds of alternating-current charging pile, will be illustrated respectively to both schemes below.

For direct-current charging post, 7 pairs of the front end converter DC currents inputted and DC voltage are converted, and are converted into symbol Mold the small voltage signal of number converter input.Wherein, for the conversion of DC current, front end converter 7 is made using current divider For conversion devices, current divider converts voltage signal for current signal and exports;Conversion for DC voltage, front end converter 7 Use the platinum resistance of high stability as partial pressure device, big voltage obtains small voltage output by partial pressure.Multichannel analog-digital converter 8 Using 24 analog-digital converters of high-precision SigmaDelta type, guarantee the precision of DC measurement significantly, while also to input The High-frequency Interference of signal inhibited.Power module 11 uses the accessory power supply of direct-current charging post as power supply, uses DCDC Power conversion is the power supply for being suitble to tester to use by converter.

For alternating-current charging pile, front end converter 7 uses mutual inductor as conversion devices, and mutual inductor turns high current signal Low current signal is turned to, voltage signal output is then converted by sample resistance;Conversion for alternating voltage, front end conversion Device 7 uses the platinum resistance of high stability as partial pressure device, and big voltage obtains small voltage output by partial pressure.Multichannel analog-to-digital conversion Device 8 will use 18 analog-digital converters of synchronized sampling type of high-speed, high precision, the significantly synchronism of guarantee AC signal sampling;Electricity Source module 11 carries out taking electricity from alternating-current charging pile 1 using ACDC converter, is converted into the power supply that suitable tester uses later. Except for the technical features described in the specification, it all is technically known to those skilled in the art.

Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention The limitation enclosed, based on the technical solution of the present invention, those skilled in the art, which do not need to pay for creative labor, to be done Various modifications or changes out are still within the scope of the present invention.

Claims (9)

1. a kind of method of calibration of embedded On-line sampling system charging pile electric energy error, characterized in that including adapter, switching One end of head is equipped with charging gun plug, and the other end is equipped with charging gun socket, and adapter embeds tester;Charging gun passes through adapter Connect charging pile and power load;Tester and adapter wireless server are wirelessly connected, and charging pile and its background server connect It connects;
It verifies computer and wirelessly carries out data interaction, verification with adapter wireless server and charging pile background server Computer is real by the way that the collected data of adapter wireless server are compared with the data that charging pile background server obtains The verification of existing electricity error.
2. a kind of method of calibration of embedded On-line sampling system charging pile electric energy error according to claim 1, special Sign is that the tester is connect by 4G wireless network with adapter wireless server.
3. a kind of method of calibration of embedded On-line sampling system charging pile electric energy error according to claim 1, special Sign is that the charging pile is direct-current charging post or alternating-current charging pile.
4. a kind of method of calibration of embedded On-line sampling system charging pile electric energy error according to claim 1, special Sign is that the power load is electric car.
5. a kind of built-in tester for On-line sampling system charging pile electric energy error method of calibration, characterized in that including preceding Converter, multichannel analog-digital converter, memory, reference clock, power module, 4G module and processor are held, processor uses ARM Processor.
6. a kind of built-in verification for On-line sampling system charging pile electric energy error method of calibration according to claim 5 Instrument, characterized in that the charging pile is direct-current charging post;The front end converter is converted current signal to using current divider Voltage signal output, uses platinum resistance to divide to obtain small voltage output as partial pressure device.
7. a kind of built-in verification for On-line sampling system charging pile electric energy error method of calibration according to claim 5 Instrument, characterized in that the charging pile is direct-current charging post;The multichannel analog-digital converter uses 24 moulds of SigmaDelta type Number converter guarantees DC measurement precision simultaneously, also inhibits to the High-frequency Interference of input signal.
8. a kind of built-in verification for On-line sampling system charging pile electric energy error method of calibration according to claim 5 Instrument, characterized in that the charging pile is alternating-current charging pile;Front end converter converts small electricity for high current signal using mutual inductor Signal is flowed, platinum resistance is used to divide to obtain small voltage output as partial pressure device.
9. a kind of built-in verification for On-line sampling system charging pile electric energy error method of calibration according to claim 5 Instrument, characterized in that the charging pile is alternating-current charging pile;The power module uses ACDC converter, is converted into suitable verification The power supply that instrument uses.
CN201810652699.8A 2018-06-22 2018-06-22 A kind of method of calibration of embedded On-line sampling system charging pile electric energy error CN109061291A (en)

Priority Applications (1)

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CN201810652699.8A CN109061291A (en) 2018-06-22 2018-06-22 A kind of method of calibration of embedded On-line sampling system charging pile electric energy error

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105048016A (en) * 2015-08-09 2015-11-11 安徽普为智能科技有限责任公司 Charging method of direct-current charging pile
CN205246858U (en) * 2015-11-02 2016-05-18 国家电网公司 Electric energy metering device error checking appearance and long -range online calibration system
CN107290706A (en) * 2017-07-14 2017-10-24 国网天津市电力公司电力科学研究院 Measurement instrument on-site calibrator built in a kind of alternating-current charging pile
CN206583968U (en) * 2017-07-04 2017-10-24 深圳市星龙科技股份有限公司 A kind of charging pile measures calibration equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105048016A (en) * 2015-08-09 2015-11-11 安徽普为智能科技有限责任公司 Charging method of direct-current charging pile
CN205246858U (en) * 2015-11-02 2016-05-18 国家电网公司 Electric energy metering device error checking appearance and long -range online calibration system
CN206583968U (en) * 2017-07-04 2017-10-24 深圳市星龙科技股份有限公司 A kind of charging pile measures calibration equipment
CN107290706A (en) * 2017-07-14 2017-10-24 国网天津市电力公司电力科学研究院 Measurement instrument on-site calibrator built in a kind of alternating-current charging pile

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