CN104283263B - Direct-current charging pile main circuit double-control power supply system and control method thereof - Google Patents
Direct-current charging pile main circuit double-control power supply system and control method thereof Download PDFInfo
- Publication number
- CN104283263B CN104283263B CN201410528926.8A CN201410528926A CN104283263B CN 104283263 B CN104283263 B CN 104283263B CN 201410528926 A CN201410528926 A CN 201410528926A CN 104283263 B CN104283263 B CN 104283263B
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- contactor
- direct
- phase
- control
- current charging
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- 238000000034 method Methods 0.000 title claims description 8
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 230000009977 dual effect Effects 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims 1
- 230000036461 convulsion Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H02J7/045—
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a direct-current charging pile main circuit double-control power supply system. The system comprises a three-phase kilowatt-hour meter, a direct-current charging module and a double-control module used for controlling a circuit of the direct-current charging module to be connected or disconnected. The double-control module is composed of an alternating-current contactor and a direct-current contactor. One end of a relay of the alternating-current contactor is connected with a phase line A of a three-phase five-line low-voltage power wire through a circuit board control switch and a jerk button in sequence, and the other end of the relay is connected with a grounding line N of the low-voltage power wire. One end of a switch of the alternating-current contactor is connected with the phase line A, a phase line B and a phase line C, and the other end of the switch is connected with the direct-current charging module through the three-phase kilowatt-hour meter. A relay of the direct-current contactor is connected with a circuit board control switch and controlled to be connected or disconnected through the jerk button, and a switch of the direct-current contactor is connected to the power source positive electrode output end of the direct-current charging module. Under the condition that sintering is controlled on the direct-current side, the power supply system can control the circuit to be connected or disconnected, and therefore safety of the power supply system is improved.
Description
Technical field
The present invention relates to direct-current charging post technical field, and in particular to a kind of direct-current charging post main circuit dual control electric power system
And its control method.
Background technology
Electric automobile is greatly developed and using becoming following trend, currently hinder one of its popularization and application it is important
Reason is the construction of charging pile.Also one reason is exactly the charging interval of electric automobile.Charging pile is divided to two kinds, a kind of for friendship
Current charge stake, a kind of is direct-current charging post.Alternating-current charging pile is to export the alternating current of 220V through Vehicular charger to accumulator
Charge.Direct-current charging post can be that output DC400V high currents directly charge a battery.The direct-current charging post charging interval than
Alternating-current charging pile charging interval much shorter.Therefore, direct-current charging post obtains the welcome of many clients.It is defeated stake to be filled additionally, due to direct current
It is high-voltage great-current to go out, and the device loss to controlling main circuit is very big, the situation for main circuit control contact sintering often occur,
In case of emergency or after charging complete, the situation of the main circuit that breaks not open, this can damage electromobile battery, and danger occurs
Danger.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of direct-current charging post main circuit dual control electric power system and its control
Method, the electric power system can be in the case of DC side control sintering, and the break-make of control circuit improves the safety of electric power system
Property.
For solve above-mentioned technical problem, direct-current charging post main circuit dual control electric power system of the present invention, including for
The three-phase kilowatt-hour meter of detection electric energy power, for the DC charging module powered to charging pile and for controlling DC charging module line
The double control module of road break-make, the double control module are made up of A.C. contactor and D.C. contactor；The A.C. contactor after
Electrical equipment one end is passed sequentially through wiring board controlling switch and scram button and is connected with the A phase lines of Three-phase five-wire low-tension supply line, relay
The other end of device is connected with the earth lead N of low-tension supply line, switch one end and triple line A, B, the C phase lines of the A.C. contactor
Connection, its other end are connected with DC charging module through three-phase kilowatt-hour meter；The relay of the D.C. contactor and wiring board control
System switch connection, and its break-make is controlled by scram button, the switch of D.C. contactor is connected to the power supply of DC charging module
Cathode output end.
A kind of method of direct-current charging post main circuit dual control electric power system, comprises the steps：
（1）Judge D.C. contactor and A.C. contactor sintering situation；
（2）If sintering occurs in D.C. contactor main contacts, wiring board control A.C. contactor disconnects, and sends alarm
Failure；
（3）If sintering occurs in A.C. contactor main contacts, D.C. contactor disconnects, and sends alarm failure.
Further, the step judges that catalyst sinters situation by following steps to determine：
（1）When sintering occurs in main contacts, main power source is disconnected in charging complete, three-phase kilowatt-hour meter can detect electric energy power
Will not occur being greatly reduced due to the disconnection of D.C. contactor, therefore, it is determined that sintering occurs in D.C. contactor main contacts；
（2）After D.C. contactor disconnects, A.C. contactor breaks not open, and the auxiliary contact of A.C. contactor still have signal
Output, at this moment can be determined that A.C. contactor main contacts is sintered.
The invention has the beneficial effects as follows：Direct-current charging post main circuit dual control electric power system of the present invention and its controlling party
Method, increased double control module in systems, and the double control module is made up of D.C. contactor and A.C. contactor, when in system no matter
When being that any catalyst is sintered in D.C. contactor and A.C. contactor, can pass through scram button and wiring board controlling switch control
Make which to cut-off, and catalyst is changed by alarm maintainer, solve original charging module in emergency circumstances or charge
After the completion of, the situation of the main circuit that breaks not open occurs, and improves stability and the safety of electric power system.
Description of the drawings
Fig. 1 is the system diagram of dual control electric power system of the present invention；
Fig. 2 is the system diagram of direct-current charging post of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, direct-current charging post main circuit dual control electric power system, including for detecting the three-phase kilowatt-hour meter of electric energy power
1st, the double control module 3 for the DC charging module 2 powered to charging pile and for controlling 2 circuit on-off of DC charging module,
Double control module 3 is made up of A.C. contactor KM1 and D.C. contactor KM2；Relay one end of A.C. contactor KM1 passes sequentially through
Wiring board controlling switch JCQ1 and scram button SE are connected with the A phase lines of Three-phase five-wire low-tension supply line, the other end of relay
It is connected with the earth lead N of low-tension supply line, switch one end of A.C. contactor KM1 is connected with triple line A, B, C phase lines, and which is another
End is connected with DC charging module 2 through three-phase kilowatt-hour meter 1；The relay of D.C. contactor KM2 is connected with wiring board controlling switch QK
Connect, and its break-make is controlled by scram button SE, the switch of D.C. contactor KM2 is just being connected to the power supply of DC charging module 2
Pole outfan.
D.C. contactor KM2 is controlled by wiring board controlling switch QK and scram button SE, and A.C. contactor KM1 receives wiring board
Controlling switch JCQ1 and scram button SE controls.In the case of this KM1 and KM2 double controls, if D.C. contactor KM2 master touches
There is sintering in point, needs to disconnect main power source in charging complete, and three-phase kilowatt-hour meter can detect electric energy power will not breaking due to KM2
Output and be now greatly reduced, therefore, it is determined that sintering, wiring board control A.C. contactor occurs in D.C. contactor KM2 main contacts
KM1 disconnects, and sends alarm failure, and maintainer is according to failure replacement D.C. contactor.If there is emergency, directly
There is sintering in stream catalyst KM2 main contacts, also can control A.C. contactor KM1 by jerk and disconnects.General D.C. contactor KM2 leads to
The electric current crossed and voltage all than larger, compared A.C. contactor KM1 main contacts and the probability for sintering occur more greatly.But ac contactor
After device KM1 main contacts also occurs that sintering, such case D.C. contactor KM2 disconnect, if A.C. contactor KM1 breaks not open,
The auxiliary contact of A.C. contactor KM1 still have signal output, at this moment can be determined that KM1 main contacts is sintered.Fig. 2 is straight for the present invention
The system diagram of current charge stake.
Direct-current charging post main circuit dual control electric power system of the present invention and its control method, increased double in systems
Control module, the double control module is made up of D.C. contactor and A.C. contactor, when in system either D.C. contactor with exchange
When any catalyst is sintered in catalyst, which can be controlled by scram button and wiring board controlling switch and be cut-off, and by report
Alert prompting maintainer changes catalyst, and in the case of solving original charging module urgency or after charging complete, break not open main circuit
Situation occur, improve stability and the safety of electric power system.
Embodiment described above is only that the preferred embodiment of the present invention is described, not the model to the present invention
Enclose and be defined, on the premise of without departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
Various modifications and improvement that case is made, all should fall in the protection domain of claims of the present invention determination.
Claims (2)
1. a kind of direct-current charging post main circuit dual control electric power system, including for detecting the three-phase kilowatt-hour meter of electric energy power（1）, be used for
To the DC charging module that charging pile is powered（2）With for controlling DC charging module（2）The double control module of circuit on-off（3）,
The double control module（3）By A.C. contactor（KM1）And D.C. contactor（KM2）Composition；The A.C. contactor（KM1）One
End passes sequentially through first line plate controlling switch（JCQ1）And scram button（SE）Connect with the A phase lines of Three-phase five-wire low-tension supply line
Connect, its other end is connected with the earth lead N of low-tension supply line, the A.C. contactor（KM1）Switch one end and triple line A,
B, C phase line connects, and its other end is through three-phase kilowatt-hour meter（1）With DC charging module（2）It is connected；The D.C. contactor（KM2）
With the second wiring board controlling switch（QK）Connection, and pass through scram button（SE）Control its break-make, D.C. contactor（KM2）Open
Connection is connected on DC charging module（2）Positive source outfan, it is characterised in that：The direct-current charging post main circuit dual control is powered
The control method of system, comprises the steps：
（1）Judge D.C. contactor and A.C. contactor sintering situation；
（2）If sintering occurs in D.C. contactor (KM2) main contacts, wiring board control A.C. contactor (KM1) disconnects, and sends report
Alert prompting failure；
（3）If sintering occurs in A.C. contactor (KM1) main contacts, D.C. contactor (KM2) disconnects, and sends alarm event
Barrier.
2. a kind of direct-current charging post main circuit dual control electric power system according to claim 1, it is characterised in that the step
（2）Judge that catalyst sinters situation by following steps to determine：
（1）When sintering occurs in main contacts, main power source, three-phase kilowatt-hour meter are disconnected in charging complete（1）Electric energy power can be detected
Will not be due to D.C. contactor（KM2）Disconnection occur being greatly reduced, therefore, it is determined that D.C. contactor（KM2）Main contacts goes out
Now sinter；
（2）Work as D.C. contactor（KM2）After disconnection, A.C. contactor（KM1）Break not open, A.C. contactor（KM1）Auxiliary touch
Point still has signal output, at this moment can be determined that A.C. contactor（KM1）Main contacts is sintered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410528926.8A CN104283263B (en) | 2014-10-10 | 2014-10-10 | Direct-current charging pile main circuit double-control power supply system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410528926.8A CN104283263B (en) | 2014-10-10 | 2014-10-10 | Direct-current charging pile main circuit double-control power supply system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104283263A CN104283263A (en) | 2015-01-14 |
| CN104283263B true CN104283263B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410528926.8A Expired - Fee Related CN104283263B (en) | 2014-10-10 | 2014-10-10 | Direct-current charging pile main circuit double-control power supply system and control method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044522A (en) * | 2015-08-09 | 2015-11-11 | 安徽普为智能科技有限责任公司 | Charger data collection method |
| CN105098772A (en) * | 2015-08-10 | 2015-11-25 | 安徽普为智能科技有限责任公司 | Automatic control method for power supply system of DC charging pile |
| CN105098938A (en) * | 2015-08-10 | 2015-11-25 | 安徽普为智能科技有限责任公司 | Intelligent control power supply system used for DC charging pile |
| CN106864279B (en) * | 2015-12-10 | 2019-07-26 | 北京智芯微电子科技有限公司 | A kind of power-off protecting circuit and its working method for electric automobile charging pile |
| CN105553061A (en) * | 2016-02-01 | 2016-05-04 | 凯迈(洛阳)电子有限公司 | DC charging pile control system |
| CN110456265A (en) * | 2019-08-16 | 2019-11-15 | 武汉合康智能电气有限公司 | The detection method of relay in a kind of charging pile |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW300681U (en) * | 1996-07-29 | 1997-03-11 | United Microelectronics Corp | Uninterrupted power device used in diffusion furnace |
| CN103746447B (en) * | 2013-12-25 | 2016-08-17 | 河南辉煌科技股份有限公司 | A kind of redundant AC power automatic switching method |
| CN103904737B (en) * | 2014-03-18 | 2017-11-10 | 国家电网公司 | A kind of one two electric automobile direct-current charging post filled |
| CN204118813U (en) * | 2014-10-10 | 2015-01-21 | 安徽普为智能科技有限责任公司 | Direct-current charging post main circuit dual control electric power system |
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| CN104283263A (en) | 2015-01-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Chuanle Inventor before: Li Yijun Inventor before: Yang Chuanle |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20171010 |