CN207366659U - A kind of direct-current charging post electric fault simulation system - Google Patents
A kind of direct-current charging post electric fault simulation system Download PDFInfo
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- CN207366659U CN207366659U CN201721297493.5U CN201721297493U CN207366659U CN 207366659 U CN207366659 U CN 207366659U CN 201721297493 U CN201721297493 U CN 201721297493U CN 207366659 U CN207366659 U CN 207366659U
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- 238000004891 communication Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
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- 238000012360 testing method Methods 0.000 abstract description 14
- 238000007689 inspection Methods 0.000 abstract description 4
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- 238000012986 modification Methods 0.000 description 5
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Abstract
This practicality discloses a kind of direct-current charging post electric fault simulation system,It is characterized in that,The system comprises direct-current charging post,Voltage disturbance source,Charging interface fault simulator,Secondary centralized control system,Wherein,The voltage disturbance source is arranged at the input terminal of the direct-current charging post,The charging interface fault simulator is arranged at the output terminal of the direct-current charging post,The secondary centralized control system is connected to the voltage disturbance source and the charging interface fault simulator by data-in port,The data collection terminal mouth of the secondary centralized control system is respectively arranged at the voltage disturbance source,At each key point in the connecting path of the direct-current charging post and the charging interface fault simulator,To gather and monitor the operating status of the key point,Solve real simulation inspection of the prior art shortage to direct-current charging post under various harsh conditions,It is unable to the actual performance of direct-current charging post and lacks the means of testing of standardization,It is and further,The problem of making the electric automobile of user bring security risk in use.
Description
Technical field
It the utility model is related to new-energy automobile testing field, more particularly to a kind of direct-current charging post electric fault simulation system
System.
Background technology
With the progressively development of New-energy electric vehicle Industry globalization, electric automobile mainly relies on direct-current charging post to vapour
Car power module charges, at present, the typical problem of electric automobile direct-current charging post, reality factor and itself there are the problem of,
Urgent demand is proposed to detection business, if the electric automobile product wants large-scale development, its charger must have
Standby test, its quality just can guarantee that the safety of automobile can just be protected, and the product of automotive grade could sustainable development.
At present, the detection of electric automobile direct-current charging post relates generally to the sides such as electric property, interoperability, communication uniformity
Face.Can wherein electrical safety detection involves direct-current charging post ensure the person and equipment safety when there is extreme case, because
This it is particularly important that.Such as charger input voltage of problem caused by electrical safety is too high or too low；Charger output overvoltage, output
The problems such as short circuit, abnormal connection.On the one hand these problems bring serious threat to personal safety and equipment safety, the stabilization of power grids,
On the other hand the experience of user is greatly reduced, harmful effect is brought to society.
At present, although type experiment can be carried out before direct-current charging post puts goods on the market, the existing safety control in prior art
System processed is used to detect the electric safe condition of direct-current charging post and control with high safety in real time, but the detection to its function is only limitted to
The verification of signal rank, lacks to the real simulation inspection under various harsh conditions, it is impossible to ensures such as some high-pressure and low-pressure mistakes
Actual performance in the actual charging application of vehicle of electric safety control system in the case of Asia and charged to direct-current charging post
, there is the means of testing of standardization in the problems such as voltage and current run into journey, and further, influences the usage experience of user, make electricity
The electric security risk in electrical automobile field is difficult to effectively solve.
The content of the invention
The embodiment of the present application solves prior art shortage by providing a kind of direct-current charging post electric fault simulation system
To real simulation inspection of the direct-current charging post under various harsh conditions, it is impossible to the actual performance of direct-current charging post and shortage rule
The means of testing of generalized, and further, the problem of making the electric automobile of user bring security risk in use.
The embodiment of the present application provides a kind of direct-current charging post electric fault simulation system, and the system comprises DC charging
Stake, voltage disturbance source, charging interface fault simulator, secondary centralized control system, wherein, the voltage disturbance source is arranged at described straight
The input terminal of current charge stake, the charging interface fault simulator is arranged at the output terminal of the direct-current charging post, described secondary
Centralized control system is connected to the voltage disturbance source and the charging interface fault simulator by data-in port, described
The data collection terminal mouth of secondary centralized control system is respectively arranged at the voltage disturbance source, the direct-current charging post and the charging
At each key point in the connecting path of interface fault simulator, to gather and monitor the operating status of the key point.
Further, the voltage disturbance source is to include the regulating transformers of multiple taps, the multiple tap setting
In the vice-side winding side of the transformer, can break to export different magnitudes of voltage, and be provided with the connecting line of the tap
The contactor opened and connect connection.
Further, the charging interface fault simulator includes electric automobile DC interface circuit simulator, and load
And short-circuit impedance simulator two parts.
Further, the electric automobile DC interface circuit simulator includes vehicle seat socket, and the vehicle seat socket includes
Multiple contacts, and the electric automobile DC interface circuit simulator further includes the connecting valve for connecting any contact.
Further, the electric automobile DC interface circuit simulator, which further includes, is equipped with vehicle BMS simulation softwards, non-
The control chip of vehicle-mounted charge communication simulation software.
Further, the load and short-circuit impedance simulator include short switch, resistance adjustment switch and resistance.
Further, the secondary centralized control system further includes control unit and backstage industrial personal computer, described control unit with
The data collection terminal mouth connection of the secondary centralized control system, the industrial personal computer are connected with described control unit, wherein, it is described secondary
The data of the data collection terminal mouth collection of centralized control system can be sent into the controller, after carrying out data mart modeling processing, be re-fed into
The backstage industrial personal computer.
Direct-current charging post electric fault simulation system, including direct-current charging post, voltage disturbance are provided in the embodiment of the present application
Source, charging interface fault simulator, secondary centralized control system can by being arranged on the voltage disturbance source of input terminal of direct-current charging post
To provide a variety of disturbance voltages, to detect operation of the direct-current charging post in the case of various input voltages, the charging interface event
Barrier simulator is arranged at the output terminal of the direct-current charging post, can be with the fault of analog charge interface side, finally by two
In the connecting path of secondary centralized control system collection voltages disturbing source, the direct-current charging post and the charging interface fault simulator
Each key point at data, such as voltage, electric current or other specification, can monitor the operating status of whole path.
Brief description of the drawings
Fig. 1 is a kind of module map of direct-current charging post electric fault simulation system in the embodiment of the present application；
Fig. 2 is the structure diagram in voltage disturbance source 102 in the embodiment of the present application；
Fig. 3 is the schematic diagram of charging interface fault simulator 103 in the embodiment of the present application.
Embodiment
Completed by National Energy Board《Electric automobile charging infrastructure construction plan》Draft proposes, to the year two thousand twenty：I
State's electric charging station quantity will reach 1.2 ten thousand, and charging pile reaches 4,500,000；The close mark of the ratio of electric automobile and electrically-charging equipment
1 matched somebody with somebody:1.This greatly promotes the construction of electric automobile electrically-charging equipment.At present, the typical problem of electric automobile direct-current charging post, existing
Real factor and itself there are the problem of, urgent demand is proposed to detection business.The detection of electric automobile direct-current charging post
Relate generally to electric property, interoperability, communication uniformity etc..Wherein electrical safety detection involves direct-current charging post and exists
Occur to ensure the person and equipment safety during extreme case, therefore it is particularly important that.
The embodiment of the present application solves prior art shortage by providing a kind of direct-current charging post electric fault simulation system
To real simulation inspection of the direct-current charging post under various harsh conditions, it is impossible to the actual performance of direct-current charging post and shortage rule
The means of testing of generalized, and the electric automobile of user is brought security risk in use.
Problem caused by electrical safety is mainly the following performance：
1st, charger input voltage is too high or too low：Such as power grid due to failure or exception, network voltage frequent fluctuation it is bright
Aobvious offrating.Overtension and too low it can all influence charger trouble free service.
2nd, charger output overvoltage：Charger makes the battery of electric automobile because itself control reason causes output overvoltage
Into infringement, burning, explosion are even resulted in.
3rd, charger output short-circuit：Charger output interface causes charger to be damaged because the short circuit of certain reason.
4th, dielectric level declines：General who has surrendered causes personal injury accident under charger dielectric level.
5th, dash current：When charger carries out nominal load charging, the impact to system cannot be too big, otherwise influences power grid
Safety.
6th, soft start：Voltage should rise to operating voltage at the appointed time after charger starts.
7th, battery reversal connection：The situation that the positive and negative anodes of positive and negative anodes and battery in the event of charger output are opposite will likely be led
Charger and electric automobile damage is caused even to explode.
8th, connection is abnormal：If charger connector and electric automobile charging connector connect generation problem in charging process,
May cause to overcharge, arcing the problems such as.
As shown in Figure 1, the utility model provides a kind of direct-current charging post electric fault simulation system 100, the system
Including direct-current charging post 101, voltage disturbance source 102, charging interface fault simulator 103, secondary centralized control system 104, wherein, institute
The input terminal that voltage disturbance source 102 is arranged at the direct-current charging post 101 is stated, the charging interface fault simulator 103 is set
In the output terminal of the direct-current charging post 101, the secondary centralized control system 104 is connected to described by data-in port
Voltage disturbance source 102 and the charging interface fault simulator 103, the data collection terminal mouth point of the secondary centralized control system 104
The company in the voltage disturbance source 102, the direct-current charging post 101 and the charging interface fault simulator 103 is not arranged at
Connect at each key point in road, to gather and monitor the operating status of the key point.
Power grid AC energy is transformed to direct current energy, using conduction side by direct-current charging post 101 to be fixedly mounted on ground
Formula is the special purpose device of electric powered motor storage battery charging, also referred to as off-board charger.
Voltage disturbance source 102 is connected on the input terminal of direct-current charging post 101, for simulating grid；Charging interface fault simulation
Device 103 is connected on the output terminal of direct-current charging post 101, for simulating all kinds of output failures.Secondary centralized control system gathered data is simultaneously controlled
Voltage disturbance source processed and the operation of charging interface fault simulator, are the control cores of package unit.
Wherein, key point is the test point preset, in such as Fig. 1, can set the key point of two detections, crucial
Point 1 is arranged on the connecting path between voltage disturbance source 102 and direct-current charging post 101, and key point 2 is arranged on direct-current charging post
On connecting path between 101 and charging interface fault simulator 103, in key point, three-phase voltage, electric current etc. can be gathered
Relevant parameter.
Further, the voltage disturbance source 102 is the regulating transformer for including multiple taps, as shown in Fig. 2, described
Multiple tap settings are in the vice-side winding side of the transformer, to export different magnitudes of voltage, and the connecting line of the tap
On be provided with the contactor that can be disconnected and connect connection.
The transformer secondary in voltage disturbance source 102 is designed to the tap of multiple separate types, and each tap corresponds to different electricity
Pressure value, from 50% Un to 115% Un.Including rated voltage shelves, boosting shelves（It is more than rated voltage）With decompression shelves（Rated voltage with
Under）, direct-current charging post power supply, the over-pressed and under-voltage situation of simulating grid generation, test direct-current charging post are given in voltage disturbance source 102
Output can be cut off in the event of excess pressure and alerted, under undervoltage condition situations such as can alerting.In actual test, pass through
The setting and programme-control of software, voltage disturbance source 102 can be disturbed with simulating grid, including Voltage Drop, including brownout,
Overtension, and voltage change curve is programmed.Temporarily dropped, temporarily for example, voltage disturbance source 102 can produce three-phase symmetrical
Polytype voltage condition such as liter or interruption.
It is exemplary, such as input overvoltage protection experiment can be provided, direct-current charging post connection charging interface fault simulator, is adjusted
Save and work under nominal load；Direct current output should be stopped and accuse to 115% rated voltage, charger by adjusting voltage disturbance source
It is alert.
Such as table 1, the measurement result and data exported by secondary centralized control system：
| Output over-voltage protection working value（V） | Output voltage（V） | Output current（A） |
| 600.000 | 5.631 | 0.000 |
For another example input undervoltage protection test, direct-current charging post connection charging interface fault simulator, is adjusted to specified negative
Carry lower work.Adjusting voltage disturbance source should alert to 85% rated voltage, charger.
For another example output over-voltage protection is tested, direct-current charging post connection charging interface fault simulator, is adjusted to specified negative
Carry lower work.Charger output parameter is adjusted, simulates over-voltage fault, when output voltage exceedes the 110% of highest DC voltage value
When charger output over-voltage protection should start, and send alarm signal.
Further, as shown in figure 3, the charging interface fault simulator 103 includes electric automobile DC interface circuit
Simulator 1031, and load and 1032 two parts of short-circuit impedance simulator.
The electric automobile DC interface circuit simulator includes vehicle seat socket, and the vehicle seat socket includes multiple contacts,
And the electric automobile DC interface circuit simulator further includes the connecting valve for connecting any contact.Electric automobile DC interface
There is break-make copying, it can be achieved that each road failure to each contact of vehicle socket in circuit simulator direct current vehicle simulator
Emulation.Can be with the insulation fault between DC+, DC- and PE of analog charge connector.Can with S+, S- of analog charge connector, CC1,
CC2, A+ and A- fault to ground.It can be achieved to charge normal the analog functuion with improper charging.Can be with simulated implementation Vehicular charging
Closed when ready, whens other conditions and stake failure disconnects.
Exemplary, the electric automobile DC interface circuit simulator, which further includes, is equipped with vehicle BMS simulation softwards, non-car
Carry the control chip of charging communication simulation software.
Further, the load and short-circuit impedance simulator include short switch, resistance adjustment switch and resistance.Load
And load and short trouble of the short-circuit impedance simulator when using resistance simulation electric automobile DC charging.Resistor switching device is adopted
With D.C. contactor, it can be achieved that constant pressure, constant current isotype.
In practice, such as output overcurrent protection test can be carried out, direct-current charging post connects charging interface fault simulation
Device, adjusts and works under nominal load.Adjust charging interface fault simulator, the DC output end of short circuit charger, charger
Should be automatically into constant current output state or cut-out direct current output, and send alarm prompt.Insulating ground protection test, including will be straight
Current charge stake connects charging interface fault simulator, adjusts and works under nominal load, adjusts charging interface fault simulator, mould
Intend charger DC interface ground connection and insulation declines, charger cuts off direct current output immediately, and sends alarm prompt.
For another example impulse current test, connects charging interface fault simulator, nominal load is arrived in adjusting by direct-current charging post
Lower work.Charger input peak point current is detected, the 110% of specified input current is not to be exceeded in charger peak point current.
Such as table 2, the measurement obtained by the system or observation result：
| Specified input current（A） | Input peak point current（A） | Dash current multiple |
| 90.134 | 103.542 | 1.149 |
For another example soft start is tested, direct-current charging post connection charging interface fault simulator, adjusts work under nominal load
Make.Detect output voltage change curve, output voltage from begin to ramp up to it is specified stable when transformation period answer 3~8s.
For another example reverse connection of accumulator detects, direct-current charging post connection charging interface fault simulator, adjusts charging interface event
Barrier simulator inverts power accumulator and charger output positive and negative electrode, starts charger output, and charger answers locking direct current defeated
Go out and send alarm prompt.
For another example sudden-stop function is tested, direct-current charging post connection charging interface fault simulator, is adjusted under nominal load
Work.By scram button, out-put supply should be cut off immediately and send alarm prompt.
For another example connection abnormal test, direct-current charging post connection charging interface fault simulator, are adjusted under nominal load
Work.The connection for adjusting charging interface fault simulator imitating charger connector disconnects, and charger should cut off out-put supply immediately
And send alarm prompt.
Such as table 3, result is measured or observed by secondary centralized control system：
| Output voltage（V） | Output current（A） | Judge | |
| Before charging | 0.000 | 0.000 | Pass |
| In charging | 3.555 | 0.000 | Pass |
Further, the secondary centralized control system 104 further includes control unit and backstage industrial personal computer, described control unit
It is connected with the data collection terminal mouth of the secondary centralized control system, the industrial personal computer is connected with described control unit, wherein, described two
The data of the data collection terminal mouth collection of secondary centralized control system can be sent into the controller, after carrying out data mart modeling processing, then send
Enter the backstage industrial personal computer.
The utility model, which is directed to, to be needed to detect working characteristics of the direct-current charging post under external fault condition, with reference to citing
Test method, analyzes the working condition of direct-current charging post.Record charger output data, to the fault simulation moment into
Row contrast, analysis, assess working characteristics of the direct-current charging post in external fault condition.
This patent utility model provide simulation system, disturbance voltage source can simulating grid abnormal conditions, produce three-phase
Temporarily rise, temporarily drop and both combinations；Charging interface fault simulator, being capable of analog DC charging pile charging interface failure and electricity
Electrical automobile cell load failure；Secondary centralized control system integrates related resource, control management voltage disturbance source, charging interface failure mould
Intend device, monitor each operating status, realize and the unified of flow, resource, integrated information, data, report, and codes and standards is managed
Reason.Huge progress is all generated in terms of practicality and originality.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from this hair by those skilled in the art
Bright spirit and scope.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its
Within the scope of equivalent technologies, then the present invention is also intended to comprising including these modification and variations.
Claims (7)
1. a kind of direct-current charging post electric fault simulation system, it is characterised in that the system comprises direct-current charging post, voltage is disturbed
Dynamic source, charging interface fault simulator, secondary centralized control system, wherein, the voltage disturbance source is arranged at the direct-current charging post
Input terminal, the charging interface fault simulator is arranged at the output terminal of the direct-current charging post, the secondary centralized control system
The voltage disturbance source and the charging interface fault simulator, the secondary collection control are connected to by data-in port
The data collection terminal mouth of system is respectively arranged at the voltage disturbance source, the direct-current charging post and the charging interface failure
At each key point in the connecting path of simulator, to gather and monitor the operating status of the key point.
2. direct-current charging post electric fault simulation system as claimed in claim 1, it is characterised in that the voltage disturbance source is
The regulating transformer of multiple taps is included, the multiple tap setting is in the vice-side winding side of the transformer, to export
Different magnitudes of voltage, and the contactor that can be disconnected and connect connection is provided with the connecting line of the tap.
3. direct-current charging post electric fault simulation system as claimed in claim 1, it is characterised in that the charging interface failure
Simulator includes electric automobile DC interface circuit simulator, and load and short-circuit impedance simulator two parts.
4. direct-current charging post electric fault simulation system as claimed in claim 3, it is characterised in that the electric automobile direct current
Interface circuit simulator includes vehicle seat socket, and the vehicle seat socket includes multiple contacts, and electric automobile DC interface electricity
Road simulator further includes the connecting valve for connecting any contact.
5. direct-current charging post electric fault simulation system as claimed in claim 3, it is characterised in that the electric automobile direct current
Interface circuit simulator, which further includes, is equipped with vehicle BMS simulation softwards, the control chip of off-board charging communication simulation software.
6. direct-current charging post electric fault simulation system as claimed in claim 3, it is characterised in that load and the short circuit resistance
Anti- simulator includes short switch, resistance adjustment switch and resistance.
7. direct-current charging post electric fault simulation system as claimed in claim 1, it is characterised in that the secondary centralized control system
Control unit and backstage industrial personal computer are further included, described control unit and the data collection terminal mouth of the secondary centralized control system connect
Connecing, the industrial personal computer is connected with described control unit, wherein, the data of the data collection terminal mouth collection of the secondary centralized control system
The controller can be sent into, after carrying out data mart modeling processing, is re-fed into the backstage industrial personal computer.
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| CN201721297493.5U CN207366659U (en) | 2017-10-10 | 2017-10-10 | A kind of direct-current charging post electric fault simulation system |
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| CN201721297493.5U CN207366659U (en) | 2017-10-10 | 2017-10-10 | A kind of direct-current charging post electric fault simulation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069856A (en) * | 2021-11-12 | 2022-02-18 | 国网江西省电力有限公司供电服务管理中心 | Remote monitoring system and method for electric vehicle charging facility |
| CN114280397A (en) * | 2021-12-10 | 2022-04-05 | 深圳市道通合创新能源有限公司 | Fault simulation device, system and alternating-current charging pile |
-
2017
- 2017-10-10 CN CN201721297493.5U patent/CN207366659U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069856A (en) * | 2021-11-12 | 2022-02-18 | 国网江西省电力有限公司供电服务管理中心 | Remote monitoring system and method for electric vehicle charging facility |
| CN114069856B (en) * | 2021-11-12 | 2023-08-11 | 国网江西省电力有限公司供电服务管理中心 | Remote monitoring system and method for electric automobile charging facility |
| CN114280397A (en) * | 2021-12-10 | 2022-04-05 | 深圳市道通合创新能源有限公司 | Fault simulation device, system and alternating-current charging pile |
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