CN209148757U - A kind of electric automobile charging pile electric parameter analysis system - Google Patents
A kind of electric automobile charging pile electric parameter analysis system Download PDFInfo
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- CN209148757U CN209148757U CN201821711229.6U CN201821711229U CN209148757U CN 209148757 U CN209148757 U CN 209148757U CN 201821711229 U CN201821711229 U CN 201821711229U CN 209148757 U CN209148757 U CN 209148757U
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Abstract
The utility model discloses a kind of electric automobile charging pile electric parameter analysis systems, including cabinet, controller is provided in cabinet, oscillograph card, data collecting card, multi-functional IO card and conditioning circuit, display is provided with outside cabinet, above-mentioned component connects and composes electric parameter analyzer: controller in the following manner, oscillograph card, data collecting card, multi-functional IO card is connect with bus respectively, multi-functional IO card, data collecting card is connect with conditioning circuit respectively, the connection of the output end of oscillograph and external interface, conditioning circuit is connect with the output end of external charging simulator, the output end of external interface is connect with the input terminal of external charging simulator, the output end of external charging simulator is also connected with load；Electric parameter analyzer carries out data acquisition, analysis and storage as slave computer, and host computer carries out information exchange by Ethernet and slave computer.The utility model realizes the automatic test of charging pile, and a key generates test report, convenient and efficient.
Description
Technical field
The utility model relates to Electric Measurement Technology fields, more specifically to a kind of electric automobile charging pile electric parameter
Analysis system.
Background technique
Charging infrastructure construction is to influence one of the key factor that China's new-energy automobile is promoted, and country takes stake station
The leading construction strategy of appropriateness.At present since the technical level of charging pile manufacturing enterprise is irregular, charging pile unit of operation collection
The charging quality of pile of Tender Based is different, causes charging pile that can not charge after putting into operation through often appearance, the failures such as equipment damage,
Even because Insulation Problems cause great security risk.
For the calibrating of electric car non-on-board charger, need to carry out according to JJG 1149-2018 vertification regulation, calibrating
Equipment includes power analyzer, oscillograph, oscillograph etc..Traditional power analyzer is not directed to the functional test of charging column,
Generally require manual operating instrument.Entire verification process the degree of automation is low, and heavy workload needs to improve working efficiency
For a set of test macro of calibrating customized development of charging pile, i.e. " electric parameter analysis system ".
Summary of the invention
Technical problem to be solved in the utility model is to propose a kind of electric automobile charging pile electric parameter analysis system,
It realizes the automatic Verification of charging pile power quality, improves calibration operation efficiency and safety.
The purpose of this utility model is achieved through the following technical solutions: designing a kind of electric automobile charging pile electricity ginseng
Analysis system, including cabinet are measured, controller, oscillograph card, data collecting card, multi-functional IO card and conditioning electricity are provided in cabinet
Road, is provided with display outside cabinet, and above-mentioned component connects and composes electric parameter analyzer in the following manner: controller, oscillograph card,
Data collecting card, multi-functional IO card are connect with bus respectively, and multi-functional IO card, data collecting card are connect with conditioning circuit respectively,
The connection of the output end of oscillograph and external interface, conditioning circuit are connect with the output end of external charging simulator, external interface
Output end is connect with the input terminal of external charging simulator, and the output end of external charging simulator is also connected with load；Electric parameter
Analyzer carries out data acquisition, analysis and storage as slave computer, and host computer carries out information exchange by Ethernet and slave computer.
Preferably, external interface is DC interface, and external charging simulator is DC charging simulator.
Preferably, external interface is exchange interface, and external charging simulator is AC charging simulator.
The utility model also provides a kind of electric automobile charging pile electric parameter analysis method, and this method uses above-mentioned electronic vapour
Vehicle charging pile electric parameter analysis system, includes the following steps:
Step1 carries out test connection according to the vertification regulation of " JJG 1149-2018 vertification regulation "；
Step2 determines test item, selects charging pile type and tested entries；
Step3, host computer send relevant parameter and test instruction to electric parameter analyzer, and electric parameter analyzer receives instruction
Afterwards, voltage is read, the voltage value of electric current and test point then records initial data and life for needing the test item of wave recording
Test result is returned at waveform, and to host computer；
Step4, after host computer receives test result, storing data, control charger is shut down, and generates test report, complete
At experiment.
Compared with prior art, the utility model has the following beneficial effects:
Traditional power analyzer is not directed to the functional test of charging column, generally requires manual operating instrument, then people
Work interpretation result saves data manually, completes a complete test, conventional to need 2 working days, while artificial interpretation and record
During, it not can avoid and make a fault, after the completion of test, need to put into great effort and arrange test report, it is trifling to work.
The utility model can be solved the above problems using virtual instrument, for the test request of charging pile, customized development, highly from
Dynamicization test, testing time greatly shorten, and completely testing in half of working day can complete, and the investment of manpower is greatly reduced,
Automatic test is not in the problems such as misreading simultaneously, and a key generates test report, convenient and efficient.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the test schematic of electric vehicle alternating-current charging pile electric parameter analysis system；
Fig. 2 is the test schematic of electric car direct-current charging post electric parameter analysis system；
Fig. 3 is the alternating voltage circuit diagram of electric vehicle alternating-current charging pile electric parameter analysis system；
Fig. 4 is the exchange test point circuit diagram of electric vehicle alternating-current charging pile electric parameter analysis system；
Fig. 5 is the DC voltage circuit schematic diagram of electric car direct-current charging post electric parameter analysis system；
Fig. 6 is the DC detecting dot circuit schematic diagram of electric car direct-current charging post electric parameter analysis system；
Fig. 7 is the software interface of electric vehicle alternating-current charging pile electric parameter analysis system；
Fig. 8 is the software interface of electric car direct-current charging post electric parameter analysis system.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.
There are two types of the charging piles of type in the market: alternating-current charging pile and direct-current charging post.Therefore, utility model embodiment mentions
For electric vehicle alternating-current charging pile electric parameter analysis system and electric car direct-current charging post electric parameter analysis system.
The test schematic of electric vehicle alternating-current charging pile electric parameter analysis system as shown in Figure 1, including cabinet, cabinet
It is inside provided with controller, oscillograph card, data collecting card, multi-functional IO card and conditioning circuit, is provided with display outside cabinet, on
It states component and connects and composes electric parameter analyzer: controller, oscillograph card, data collecting card, multi-functional IO card point in the following manner
It is not connect with bus, multi-functional IO card, data collecting card are connect with conditioning circuit respectively, and oscillograph is defeated with external communication interface
Outlet connection, conditioning circuit are connect with the output end of external communication charging simulator, the output end of external communication interface and outside
The input terminal of AC charging simulator connects, and the output end of external communication charging simulator is also connected with load；Electric parameter analysis
Instrument carries out data acquisition, analysis and storage as slave computer, and host computer carries out information exchange by Ethernet and slave computer.It is handing over
In the test process of current charge stake, need to monitor three-phase voltage, three-phase current, exchange test point CP1, CP2 and CC.Such as Fig. 3 institute
Show, the test method of alternating voltage is as follows: using high-precision voltage transformer, the alternating current of 220V is converted to the exchange of 5V
Voltage, is then connected to the data collecting card inside analyzer for the alternating voltage, and analyzer acquires data and passes through no-load voltage ratio system
Number is calibrated to actual voltage value.The test method of alternating current is as follows: alternating current being circulated using high-precision current transformer
5V alternating voltage below is turned to, the alternating voltage is then connected to the data collecting card inside analyzer, analyzer acquisition
Data are simultaneously calibrated to actual current value by no-load voltage ratio coefficient.The maximum voltage for exchanging test point CP1, CP2 and CC is no more than 14V,
The maximum input voltage of data collecting card is 10V, it is therefore desirable to signal is improved, as shown in figure 4, by taking CP1 as an example, exchange inspection
A TVS pipe in parallel between measuring point CP1 and ground is then attached to the input terminal of operational amplifier, the output electricity of amplifier amplifier
Pressure is connected to data collecting card after divider resistance, and analyzer acquisition data are simultaneously calibrated to virtual voltage by no-load voltage ratio coefficient
Value；The measuring principle of test point CP1 and CC are consistent with CP1；Test point CP1 is connected to oscillograph board simultaneously, measures the height of PWM
Level, low current, rising time, failing edge time and frequency.
The test schematic of electric car direct-current charging post electric parameter analysis system as shown in Figure 2, including cabinet, cabinet
It is inside provided with controller, oscillograph card, data collecting card, multi-functional IO card and conditioning circuit, is provided with display outside cabinet, on
It states component and connects and composes electric parameter analyzer: controller, oscillograph card, data collecting card, multi-functional IO card point in the following manner
It is not connect with bus, multi-functional IO card, data collecting card are connect with conditioning circuit respectively, and oscillograph is defeated with external dc interface
Outlet connection, conditioning circuit are connect with the output end of external dc charging simulator, the output end of external dc interface and outside
The input terminal of DC charging simulator connects, and the output end of external dc charging simulator is also connected with load；Electric parameter analysis
Instrument carries out data acquisition, analysis and storage as slave computer, and host computer carries out information exchange by Ethernet and slave computer.Straight
In the test process of current charge stake, need to monitor DC voltage, DC current, accessory power supply voltage, accessory power supply electric current, direct current
Test point CC1 and CC2.The test method of DC voltage is as follows: as shown in figure 5, will using high-precision divider resistance
The voltage of 1000V is converted to 5V voltage below, then using a high-precision voltage isolation module, isolation module it is defeated
It is connected to data collecting card out, analyzer acquisition data are simultaneously calibrated to actual voltage value by no-load voltage ratio coefficient.The survey of DC current
Examination mode is as follows: DC current is converted to 5V voltage signal below by current transformer, then reconnects data and adopts
Truck, analyzer acquisition data are simultaneously calibrated to actual current value by no-load voltage ratio coefficient；The test mode of accessory power supply voltage is as follows
Shown: accessory power supply voltage is connected to data collecting card after divider resistance, and analyzer acquires data and passes through no-load voltage ratio coefficient
It is calibrated to actual voltage value.The test mode of accessory power supply electric current is as follows: auxiliary current electric current is turned by sample resistance
It is changed to voltage signal, is then attached to data collecting card, analyzer acquisition data are simultaneously calibrated to actual current by no-load voltage ratio coefficient
Value.The measurement method of DC detecting point CC1 and CC2 is as follows: as shown in fig. 6, by taking CC1 as an example, DC detecting point CC1 and ground
Between a TVS pipe in parallel, be then attached to the input terminal of operational amplifier, the output voltage of amplifier amplifier is by partial pressure electricity
Data collecting card is connected to after resistance, analyzer acquisition data are simultaneously calibrated to actual voltage value by no-load voltage ratio coefficient；Test point CC2's
Measuring principle is consistent with CC1.
Above-mentioned analyzer has the pulse output function of electric energy meter, and realization principle is as follows: for alternating-current charging pile, analyzer
Acquisition three-phase voltage, three-phase current in real time, and calculate realtime power；For direct-current charging post, analyzer acquires direct current in real time
Voltage, DC current, and calculate realtime power；The integral of power over time is electric energy, establishing criteria " JJG 1148-
2018 electric vehicle alternating-current charging piles " or " JJG 1149-2018 electric car non-on-board charger ", standard scale constant is set,
Then the output pulse signal of multi-functional IO card, as shown in figure 4, the pulse signal is connected, a resistance R11 is used for current limliting, then
It connects again the input terminal of two optocouplers U2, U4, the face of analyzer is connected to after one resistance R16 of output series connection of an optocoupler
Plate measures analyzer for standard device；Another way optocoupler output series resistance R12, light emitting diode (external)
It is used for status display afterwards.
Analyzer has the output function of measurement electric energy meter, and realization principle is as follows: the signal of analyzer output 5V is connected to
The pulse output plus terminal of electric energy meter, the pulse output negative terminal of electric energy meter are connected to the pulse collection input terminal of analyzer, analyzer
According to collected pulse signal and standard scale constant, the output power for making tested electric energy meter and accumulative electric energy can be calculated.
1 alternating-current charging pile test schematic core equipment list (corresponding diagram 1) of table
2 direct-current charging post test schematic core equipment list (corresponding diagram 2) of table
3 alternating voltage circuit diagram component inventory (corresponding diagram 3) of table
Table 4 exchanges test point circuit diagram main components inventory (corresponding diagram 4)
5 DC voltage circuit schematic diagram component inventory (corresponding diagram 5) of table
6 DC detecting dot circuit schematic diagram main components inventory (corresponding diagram 6) of table
The utility model also provides a kind of electric automobile charging pile electric parameter analysis method, and this method uses above-mentioned electronic vapour
Vehicle charging pile electric parameter analysis system, includes the following steps:
Step1 carries out test connection according to the vertification regulation of " JJG 1149-2018 vertification regulation "；
Step2 determines test item, selects charging pile type and tested entries；
Step3, host computer send relevant parameter and test instruction to electric parameter analyzer, and electric parameter analyzer receives instruction
Afterwards, voltage is read, the voltage value of electric current and test point then records initial data and life for needing the test item of wave recording
Test result is returned at waveform, and to host computer；
Step4, after host computer receives test result, storing data, control charger is shut down, and generates test report, complete
At experiment.
The embodiments of the present invention are described in attached drawing, but the utility model be not limited to it is above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the enlightenment of the utility model, when not departing from the utility model aims and scope of the claimed protection, may be used also
Many forms are made, these are belonged within the protection of the utility model.
Claims (3)
1. a kind of electric automobile charging pile electric parameter analysis system, which is characterized in that including cabinet, control is provided in cabinet
Device, oscillograph card, data collecting card, multi-functional IO card and conditioning circuit, cabinet are provided with display outside, and above-mentioned component is by following
Mode connects and composes electric parameter analyzer: controller, oscillograph card, data collecting card, multi-functional IO card are connect with bus respectively,
Multi-functional IO card, data collecting card are connect with conditioning circuit respectively, the output end connection of oscillograph and external interface, conditioning circuit
It is connect with the output end of external charging simulator, the output end of external interface is connect with the input terminal of external charging simulator, outside
The output end of portion's charging simulator is also connected with load；Electric parameter analyzer carries out data acquisition as slave computer, analyzes and deposit
Storage, host computer carry out information exchange by Ethernet and slave computer.
2. a kind of electric automobile charging pile electric parameter analysis system according to claim 1, which is characterized in that external interface
For DC interface, external charging simulator is DC charging simulator.
3. a kind of electric automobile charging pile electric parameter analysis system according to claim 1, which is characterized in that external interface
To exchange interface, external charging simulator is AC charging simulator.
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| CN201821711229.6U CN209148757U (en) | 2018-10-22 | 2018-10-22 | A kind of electric automobile charging pile electric parameter analysis system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109164292A (en) * | 2018-10-22 | 2019-01-08 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of electric automobile charging pile electric parameter analysis system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164292A (en) * | 2018-10-22 | 2019-01-08 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of electric automobile charging pile electric parameter analysis system and method |
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