CN104283263A - 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
- CN104283263A CN104283263A CN201410528926.8A CN201410528926A CN104283263A CN 104283263 A CN104283263 A CN 104283263A CN 201410528926 A CN201410528926 A CN 201410528926A CN 104283263 A CN104283263 A CN 104283263A
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- contactor
- direct
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- current charging
- switch
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- 238000000034 method Methods 0.000 title claims description 9
- 238000005245 sintering Methods 0.000 claims abstract description 22
- 230000009977 dual effect Effects 0.000 claims description 12
- 230000036461 convulsion Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
Classifications
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- H02J7/045—
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- 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, be specifically related to a kind of direct-current charging post main circuit dual control electric power system and control method thereof.
Background technology
Greatly developing and using of electric automobile will become following trend, and its major reason applied of current obstruction is the construction of charging pile.Reason is also had to be exactly charging interval of electric automobile.Charging pile divides two kinds, and one is alternating-current charging pile, and one is direct-current charging post.Alternating-current charging pile is that the alternating current exporting 220V charges a battery through Vehicular charger.Direct-current charging post can export DC400V big current directly to charge in batteries.The direct-current charging post charging interval is than alternating-current charging pile charging interval much shorter.Therefore, direct-current charging post obtains the welcome of many clients.High-voltage great-current because direct current fills that stake exports in addition, very large to the device loss controlling main circuit, often there will be the situation that main circuit controls contact sintering; in case of emergency or after charging complete; break not open the situation of main circuit, this can damage electromobile battery, and there will be danger.
Summary 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 control method thereof, and this electric power system can when DC side controls sintering, and the break-make of control circuit, improves the fail safe of electric power system.
For solving the problems of the technologies described above, direct-current charging post main circuit dual control electric power system of the present invention, comprise the three-phase kilowatt-hour meter for detecting electric energy power, for the DC charging module of powering to charging pile and the double control module for controlling DC charging module circuitry break-make, described double control module is made up of A.C. contactor and D.C. contactor; Relay one end of described A.C. contactor is connected with the A phase line of scram button with Three-phase five-wire low-tension supply line by wiring board control switch successively, the other end of relay is connected with the earth connection N of low-tension supply line, switch one end of described A.C. contactor is connected with triple line A, B, C phase line, and its other end is connected with DC charging module through three-phase kilowatt-hour meter; The relay of described D.C. contactor is connected with wiring board control switch, and controls its break-make by scram button, and the switch of D.C. contactor is connected to the positive source output of DC charging module.
A method for direct-current charging post main circuit dual control electric power system, comprises the steps:
(1) D.C. contactor and A.C. contactor sintering situation is judged;
(2) if sintering appears in D.C. contactor main contacts, wiring board controls A.C. contactor and disconnects, and sends alarm fault;
(3) if sintering appears in A.C. contactor main contacts, D.C. contactor disconnects, and sends alarm fault.
Further, described step judges that contactor sintering situation is determined by following steps:
(1) when sintering appears in main contacts, disconnect main power source when charging complete, three-phase kilowatt-hour meter can detect that electric energy power can not occur significantly reducing due to the disconnection of D.C. contactor, therefore judges that sintering appears 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 to export, and at this moment can judge that A.C. contactor main contacts sinters.
The invention has the beneficial effects as follows: direct-current charging post main circuit dual control electric power system of the present invention and control method thereof, add double control module in systems in which, this double control module is made up of D.C. contactor and A.C. contactor, when in being no matter D.C. contactor and A.C. contactor in system during any contactor sintering, all control it by scram button and wiring board control switch to cut-off, and change contactor by alarm maintenance personal, solve original charging module in emergency circumstances or after charging complete, break not open main circuit situation occur, improve stability and the fail safe of electric power system.
Accompanying drawing explanation
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.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, direct-current charging post main circuit dual control electric power system, comprise the three-phase kilowatt-hour meter 1 for detecting electric energy power, for the DC charging module 2 of powering to charging pile and the double control module 3 for controlling DC charging module 2 circuit on-off, 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 is connected with the A phase line of Three-phase five-wire low-tension supply line with scram button SE by wiring board control switch JCQ1 successively, the other end of relay is connected with the earth connection N of low-tension supply line, switch one end of A.C. contactor KM1 is connected with triple line A, B, C phase line, and its other 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 control switch QK, and controls its break-make by scram button SE, and the switch of D.C. contactor KM2 is connected to the positive source output of DC charging module 2.
D.C. contactor KM2 controls by wiring board control switch QK and scram button SE, and A.C. contactor KM1 controls by wiring board control switch JCQ1 and scram button SE.In this KM1 and KM2 double control situation, if there is sintering in D.C. contactor KM2 main contacts, need when charging complete to disconnect main power source, three-phase kilowatt-hour meter can detect that electric energy power can not occur significantly reducing due to the disconnection of KM2, therefore judge that sintering appears in D.C. contactor KM2 main contacts, wiring board controls A.C. contactor KM1 and disconnects, and sends alarm fault, and maintenance personal is according to failure replacement D.C. contactor.If there is emergency, there is sintering in D.C. contactor KM2 main contacts, disconnects by suddenly stopping also to control A.C. contactor KM1.The electric current that general D.C. contactor KM2 passes through and voltage all larger, compare A.C. contactor KM1 main contacts occur sintering probability more greatly.But A.C. contactor KM1 main contacts also there will be sintering, after this situation D.C. contactor KM2 disconnects, if A.C. contactor KM1 breaks not open, the auxiliary contact of A.C. contactor KM1 still have signal to export, and at this moment can judge that KM1 main contacts sinters.Fig. 2 is the system diagram of direct-current charging post of the present invention.
Direct-current charging post main circuit dual control electric power system of the present invention and control method thereof, add double control module in systems in which, this double control module is made up of D.C. contactor and A.C. contactor, when in being no matter D.C. contactor and A.C. contactor in system during any contactor sintering, all control it by scram button and wiring board control switch to cut-off, and change contactor by alarm maintenance personal, under solving the anxious situation of original charging module or after charging complete, break not open main circuit situation occur, improve stability and the fail safe of electric power system.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection range that claims of the present invention determines.
Claims (3)
1. a direct-current charging post main circuit dual control electric power system, it is characterized in that: comprise the three-phase kilowatt-hour meter (1) for detecting electric energy power, for the DC charging module (2) of powering to charging pile and the double control module (3) for controlling DC charging module (2) circuit on-off, described double control module (3) is made up of A.C. contactor (KM1) and D.C. contactor (KM2); Relay one end of described A.C. contactor (KM1) is connected with the A phase line of scram button (SE) with Three-phase five-wire low-tension supply line by wiring board control switch (JCQ1) successively, the other end of relay is connected with the earth connection N of low-tension supply line, switch one end of described A.C. contactor (KM1) is connected with triple line A, B, C phase line, and its other end is connected with DC charging module (2) through three-phase kilowatt-hour meter (1); The relay of described D.C. contactor (KM2) is connected with wiring board control switch (QK), and controls its break-make by scram button (SE), and the switch of D.C. contactor (KM2) is connected to the positive source output of DC charging module (2).
2. the method for a kind of direct-current charging post main circuit dual control electric power system according to claim 1, is characterized in that, comprise the steps:
(1) D.C. contactor and A.C. contactor sintering situation is judged;
(2) if sintering appears in D.C. contactor (KM2) main contacts, wiring board controls A.C. contactor (KM1) and disconnects, and sends alarm fault;
(3) if sintering appears in A.C. contactor (KM1) main contacts, D.C. contactor (KM2) disconnects, and sends alarm fault.
3. the method for a kind of direct-current charging post main circuit dual control electric power system according to claim 2, is characterized in that, described step (2) judges that contactor sintering situation is determined by following steps:
(1) when sintering appears in main contacts, main power source is disconnected when charging complete, three-phase kilowatt-hour meter (1) can detect that electric energy power can not occur significantly reducing due to the disconnection of D.C. contactor (KM2), therefore judges that sintering appears in D.C. contactor (KM2) main contacts;
(2) after D.C. contactor (KM2) disconnects, A.C. contactor (KM1) breaks not open, and the auxiliary contact of A.C. contactor (KM1) still have signal to export, and at this moment can judge that A.C. contactor (KM1) main contacts sinters.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN104283263A true CN104283263A (en) | 2015-01-14 |
| CN104283263B 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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Cited By (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 |
| 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 |
| 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 |
| CN105553061A (en) * | 2016-02-01 | 2016-05-04 | 凯迈(洛阳)电子有限公司 | DC charging pile control system |
| CN106864279A (en) * | 2015-12-10 | 2017-06-20 | 北京智芯微电子科技有限公司 | A kind of power-off protecting circuit and its method of work for electric automobile charging pile |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5804889A (en) * | 1996-07-29 | 1998-09-08 | United Microelectronics Corp. | Un-interruptible power supply apparatus for diffusion furnace |
| CN103746447A (en) * | 2013-12-25 | 2014-04-23 | 河南辉煌科技股份有限公司 | Automatic switching method of redundant AC power |
| CN103904737A (en) * | 2014-03-18 | 2014-07-02 | 许继电气股份有限公司 | Electric vehicle direct-current charging pile capable of charging two vehicles simultaneously |
| 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 |
-
2014
- 2014-10-10 CN CN201410528926.8A patent/CN104283263B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5804889A (en) * | 1996-07-29 | 1998-09-08 | United Microelectronics Corp. | Un-interruptible power supply apparatus for diffusion furnace |
| CN103746447A (en) * | 2013-12-25 | 2014-04-23 | 河南辉煌科技股份有限公司 | Automatic switching method of redundant AC power |
| CN103904737A (en) * | 2014-03-18 | 2014-07-02 | 许继电气股份有限公司 | Electric vehicle direct-current charging pile capable of charging two vehicles simultaneously |
| 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 |
Cited By (7)
| 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 |
| 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 |
| 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 |
| CN106864279A (en) * | 2015-12-10 | 2017-06-20 | 北京智芯微电子科技有限公司 | A kind of power-off protecting circuit and its method of work for electric automobile 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 |
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| CN104283263B (en) | 2017-05-10 |
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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 |