CN206074714U - A kind of virtual load assay device for the detection of charging pile metering performance - Google Patents
A kind of virtual load assay device for the detection of charging pile metering performance Download PDFInfo
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- CN206074714U CN206074714U CN201621037209.6U CN201621037209U CN206074714U CN 206074714 U CN206074714 U CN 206074714U CN 201621037209 U CN201621037209 U CN 201621037209U CN 206074714 U CN206074714 U CN 206074714U
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Abstract
This utility model provides a kind of virtual load assay device for the detection of charging pile metering performance, belongs to metering field.The virtual load assay device for being used for the detection of charging pile metering performance includes：External current source, external voltage source, isolation current flow devices and standard metering devices；The L ends of the power input of the high-end and charging pile of the external voltage source are connected, and the low side of external voltage source is connected with the N-terminal of the power input of charging pile；The external current source connection isolation current flow devices, the L ends of the high-end power input with charging pile of electric current of the isolation current flow devices are connected, and the electric current low side for isolating current flow devices is connected with the electric current low side of standard metering devices；The high-end connection of electric current of the high-end and standard metering devices of the charging gun of the charging pile, the low side of charging gun are connected with the voltage low side of standard metering devices, and the voltage of standard metering devices is high-end with the high-end connection of standard metering devices electric currents.
Description
Technical field
This utility model belongs to metering field, and in particular to a kind of virtual load examination for the detection of charging pile metering performance
Experiment device, at the scene or under laboratory environment, to handing over the stake of (straight) current charge to carry out the virtual load inspection of electric energy metrical accuracy
Test.
Background technology
Charging pile (machine) is general to be made up of the part such as pile body, electrical module, metering module.Electrical module and metering module peace
It is mounted in inside pile body.Pile body include shell and human-computer interaction interface, electrical module include charging socket, cable conversion terminal row,
Safety device etc..Generally, need to pay according to the amount of money shown in human-computer interaction interface after user's charging complete.
Therefore, the metering performance detection needs of charging pile (machine) are performed integrally, and the whole detection method for adopting at present is mainly real load
Method.Real load method has circuit simple, and the characteristics of easy to use, but the method can increase extra energy expenditure, with current
One charging pile (machine) of detection needs to consume electric energy 50kWh and calculates, and the detection power consumption of the charging pile of China 1 year (machine) is up to
4000000 kWh.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, there is provided one kind is based on charging pile
The virtual load assay device of amount performance detection, can not do under large-scale change, by external add-in at charging pile (machine)
Current source, voltage source, xegregating unit, standard metering devices complete the overall metering performance detection of charging pile (machine), and have
The characteristics of flexible operation, measurement efficiency height, saving energy consumption.
This utility model is achieved through the following technical solutions：
A kind of virtual load assay device for the detection of charging pile metering performance, including：External current source, external voltage
Source, isolation current flow devices and standard metering devices；
The L ends of the power input of the high-end and charging pile of the external voltage source are connected, the low side of external voltage source with
The N-terminal connection of the power input of charging pile；
The external current source connection isolation current flow devices, the high-end electricity with charging pile of electric current of the isolation current flow devices
The L ends connection of source input, the electric current low side for isolating current flow devices are connected with the electric current low side of standard metering devices；
The high-end connection of electric current of the high-end and standard metering devices of the charging gun of the charging pile, low side and the mark of charging gun
The voltage low side connection of quasi- measuring equipment, the voltage of standard metering devices are high-end with the high-end connection of standard metering devices electric currents.
The charging pile is alternating-current charging pile or direct-current charging post.
The charging pile metering performance for utilizing the virtual load assay device for the detection of charging pile metering performance to realize
The virtual load test method of detection, including：
Step 1, by the L ends of the power input of the high-end access charging pile of external voltage source, the low side of external voltage source
Access the N-terminal of the power input of charging pile；External current source is connected with current flow devices are isolated, the electricity of current flow devices will be isolated
The L ends of the power input of high-end access charging pile are flowed, the electric current low side for isolating current flow devices accesses the electricity of standard metering devices
Stream low side；
Step 2, will be the high-end access standard metering devices electric current of charging gun high-end, and the low side of charging gun accesses standard metering
The voltage low side of equipment, the voltage of standard metering devices are high-end with the high-end connection of standard metering devices electric currents；
Step 3, arranges the output voltage signal of external voltage source, arranges the output current signal of external current source, synchronous
Start charging pile and standard metering devices are measured, obtain the overall error in dipping of charging pile, complete the virtual negative of charging pile
Lotus is tested.
The overall error in dipping of the acquisition charging pile in the step 3, the virtual load test for completing charging pile is so
Realize：
It is after the electric energy value of charging pile accumulative certain hour, synchronous to stop charging pile and standard metering devices；
The charge capacity value that the charge capacity value and standard metering devices that record charging pile shows shows, then by the two
Charge capacity value is compared, and determines the overall error in dipping of charging pile, that is, complete the virtual load test of charging pile.
Compared with prior art, the beneficial effects of the utility model are：This utility model by the current source of external add-in,
Voltage source, xegregating unit, standard metering devices complete the overall metering performance detection of charging pile (machine), with flexible operation, survey
The characteristics of amount efficiency height, saving energy consumption.
Description of the drawings
The structural representation of Fig. 1 this utility model devices.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail：
This utility model provides a kind of test method for handing over the detection of (straight) current charge stake (machine) metering performance, for existing
Under field or laboratory environment, to handing over (straight) current charge stake (machine) to carry out the virtual load inspection of electric energy metrical accuracy.The practicality is new
Type can not be done under large-scale change, by the current source of external add-in, voltage source, xegregating unit at charging pile (machine), is marked
Quasi- measuring equipment, completes the overall metering performance detection of charging pile (machine).
This utility model device hands over (straight) current charge stake (machine) power supply defeated as shown in figure 1, the high-end H of external voltage source is accessed
Enter the L ends at end, the low side L of external voltage source accesses the N-terminal for handing over (straight) current charge stake (machine) power input；External current source Jing
Isolation current flow devices are crossed, the equipment can make current source from the impacting with high pressure of voltage source, and the high-end H of electric current of xegregating unit is accessed and filled
The electric current low side L of standard metering devices is accessed at the power input L end of electric stake (machine), the electric current low side L of xegregating unit；
The high-end H of the high-end access standard metering devices electric current of charging gun, it is low that charging gun low side accesses standard metering devices voltage
End L, the high-end H of standard metering devices voltage Hs high-end with standard metering devices electric current are connected.
The using method of this device is as follows：
Step 1, the high-end H of external voltage source access the L ends for handing over (straight) current charge stake (machine) power input, external voltage
The low side L in source accesses the N-terminal for handing over (straight) current charge stake (machine) power input；External current source passes through isolation current flow devices, every
The power input L end of charging pile (machine) is accessed from the high-end H of the electric current of equipment, the electric current low side L of xegregating unit accesses standard metering
The electric current low side L of equipment, the high-end H of electric current of xegregating unit access the L ends for handing over (straight) current charge stake (machine) power input；
Step 2, the high-end H of the high-end access standard metering devices electric current of charging gun, charging gun low side access standard metering devices
Voltage low side L, the high-end H of standard metering devices voltage H high-end with standard metering devices electric current is connected.
Step 3, completes above-mentioned steps 1, after 2, according to detection test requirements document, arranges external voltage source output voltage signal,
External current source output current signal is set, and synchronous averaging charging pile (machine) and standard metering devices are measured, and work as charging pile
It is after the electric energy value of (machine) accumulative certain hour, synchronous to stop charging pile (machine) and standard metering devices.Record charging pile (machine)
The charge capacity value that the charge capacity value of display and standard metering devices show, the two charge capacity values is compared, really
Determine the overall error in dipping of charging pile (machine), complete the virtual load test of charging pile (machine).
A kind of test method of virtual load is used to hand over (straight) current charge stake (machine) metering performance to detect by this utility model,
The method completes the entirety of charging pile (machine) by the current source of external add-in, voltage source, xegregating unit, standard metering devices
Metering performance is detected.The combination of external voltage source and current source in detection process, can be passed through, the product of virtual power is completed
Raw, with flexible operation, measurement efficiency is high, the characteristics of save energy consumption.
Above-mentioned technical proposal is a kind of embodiment of the present utility model, for those skilled in the art,
The utility model discloses on the basis of principle, it is easy to make various types of improvement or deformation, be not limited solely to this reality
It is with the structure described by new above-mentioned specific embodiment therefore previously described simply preferred, and it is not restrictive
Meaning.
Claims (2)
1. it is a kind of for charging pile metering performance detection virtual load assay device, it is characterised in that：The assay device bag
Include：External current source, external voltage source, isolation current flow devices and standard metering devices；
The L ends of the power input of the high-end and charging pile of the external voltage source are connected, low side and the charging of external voltage source
The N-terminal connection of the power input of stake；
The external current source connection isolation current flow devices, the electric current of the isolation current flow devices are high-end defeated with the power supply of charging pile
Enter the L ends connection at end, the electric current low side for isolating current flow devices is connected with the electric current low side of standard metering devices；
The high-end connection of electric current of the high-end and standard metering devices of the charging gun of the charging pile, the low side and standard meter of charging gun
The voltage low side connection of amount equipment, the voltage of standard metering devices are high-end with the high-end connection of standard metering devices electric currents.
2. it is according to claim 1 for charging pile metering performance detection virtual load assay device, it is characterised in that：
The charging pile is alternating-current charging pile or direct-current charging post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621037209.6U CN206074714U (en) | 2016-09-05 | 2016-09-05 | A kind of virtual load assay device for the detection of charging pile metering performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621037209.6U CN206074714U (en) | 2016-09-05 | 2016-09-05 | A kind of virtual load assay device for the detection of charging pile metering performance |
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| CN206074714U true CN206074714U (en) | 2017-04-05 |
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| CN201621037209.6U Active CN206074714U (en) | 2016-09-05 | 2016-09-05 | A kind of virtual load assay device for the detection of charging pile metering performance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219493A (en) * | 2017-05-11 | 2017-09-29 | 中国电力科学研究院 | A kind of system and method that off-board charger electric energy metrical performance is tested based on virtual load |
| CN107390158A (en) * | 2017-06-21 | 2017-11-24 | 中国电力科学研究院 | A kind of charging post system and method for carrying out electric energy metrical virtual load test |
| CN107797003A (en) * | 2016-09-05 | 2018-03-13 | 中国计量科学研究院 | A kind of virtual load experimental rig and method for the detection of charging pile metering performance |
| CN110471017A (en) * | 2019-09-17 | 2019-11-19 | 上海贝岭股份有限公司 | Power standard source, metering chip and metering device |
-
2016
- 2016-09-05 CN CN201621037209.6U patent/CN206074714U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797003A (en) * | 2016-09-05 | 2018-03-13 | 中国计量科学研究院 | A kind of virtual load experimental rig and method for the detection of charging pile metering performance |
| CN107797003B (en) * | 2016-09-05 | 2023-10-20 | 中国计量科学研究院 | Virtual load test device and method for detecting metering performance of charging pile |
| CN107219493A (en) * | 2017-05-11 | 2017-09-29 | 中国电力科学研究院 | A kind of system and method that off-board charger electric energy metrical performance is tested based on virtual load |
| CN107390158A (en) * | 2017-06-21 | 2017-11-24 | 中国电力科学研究院 | A kind of charging post system and method for carrying out electric energy metrical virtual load test |
| CN110471017A (en) * | 2019-09-17 | 2019-11-19 | 上海贝岭股份有限公司 | Power standard source, metering chip and metering device |
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