CN108583362A - A kind of electric vehicle alternating-current charging network and its control method - Google Patents
A kind of electric vehicle alternating-current charging network and its control method Download PDFInfo
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- CN108583362A CN108583362A CN201810849211.0A CN201810849211A CN108583362A CN 108583362 A CN108583362 A CN 108583362A CN 201810849211 A CN201810849211 A CN 201810849211A CN 108583362 A CN108583362 A CN 108583362A
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- 238000004891 communication Methods 0.000 claims abstract description 26
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- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/63—Monitoring or controlling charging stations in response to network capacity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to a kind of electric vehicle alternating-current charging network and its control methods, charging network includes AC network bus, charging network bus, charging network master controller, current transformer, communication module and alternating-current charging pile, charging network bus is connect with AC network bus, for the first branch of AC network bus, alternating-current charging pile is connect with charging network bus, user power utilization bus is connect with AC network bus, it is the second branch of AC network bus, current transformer detects the size of the customer charge three-phase current in user power utilization bus, communication module is arranged inside charging network master controller and alternating-current charging pile.The present invention can reasonable distribution charging pile charging capacity, so that the use of charging network is not interfered with normal residential electricity consumption or commercial power.
Description
Technical field
The present invention relates to electric vehicle fields, and in particular to a kind of electric vehicle alternating-current charging network and its control method.
Background technology
With the development of new-energy automobile industry, under the support energetically of national policy, mating electrically-charging equipment is gradual
It is perfect.Charging pile product type at present on the market is various, is broadly divided into direct-current charging post and alternating-current charging pile two major classes.Charging
Stake at present more to be installed in public building and residential area parking lot or charging station, when building public charging network, needs to examine
Worry and residential electricity consumption and commercial power etc. are avoided the peak hour, and under the premise of not influencing residential electricity consumption and commercial power, implement electric vehicle
Charging, however, during current charging pile use, being susceptible to Peak power use is causing influencing public building and resident just
Common electricity, to bring inconvenience to resident.On the other hand, it is powered using single-phase electricity due to alternating-current charging pile, in single-phase charging pile
When starting charging, needs the phase current immediate current powered to increase, cause three-phase current amplitude in electric system inconsistent, from
And cause the imbalance of three phase network.When there is three phase network imbalance, power network current can be made to be distorted, harmonic content
Increase, the loss of circuit accordingly increases.In order to prevent charge peak period charging pile largely use and caused by three-phase imbalance
Problem is all to evenly distribute strategy using charging pile charging pile is averaged that is, according to the total amount of alternating-current charging pile in most cases
It is distributed in each phase of three-phase AC grid system, ensures the charging pile quantity phase of any phase of connection three-phase AC grid
Deng.But this charging network building mode does not solve the problems, such as that alternating-current charging pile sharing of load is uneven practically fundamentally,
When the alternating-current charging pile of only a certain phase access is widely used simultaneously, serious three-phase imbalance phenomenon can be still caused, is added
Weight transformer burden, increases line loss.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of electric vehicle alternating-current charging network and its controlling parties
Method.The charging network can intelligently electricity consumption practical according to network load the case where, control charging pile output current size, and
The separate of charging pile output current can be allocated in real time according to three-phase current size in charging network so that three in charging network
Phase current user-friendly can know charge information in the process close to equilibrium state.
In order to realize the purpose, the present invention provides the following technical solutions：
A kind of electric vehicle alternating-current charging network, including AC network bus, charging network bus, alternating-current charging pile, charge net
Network bus is connect with AC network bus, is the first branch of AC network bus, the alternating-current charging pile and charging network are total
Line connects, it is characterised in that：Further include,
Charging network master controller, the charging network master controller are bus-powered by AC network；
Current signal line, the current signal line connect the first current transformer and charging network master controller；
User power utilization bus, the user power utilization bus are connect with AC network bus, are the second branches of AC network bus；
First current transformer, first current transformer detect the customer charge three-phase current in the user power utilization bus
Size；
Communication module, the communication module are arranged inside charging network master controller and alternating-current charging pile.
Further, the alternating-current charging pile includes intelligent phase selection control module and charhing unit, and the Intelligent Selection is phased
The output end of molding block and the input terminal of charhing unit connect, and the output end of the charhing unit is single phase power supply.
Further, the alternating-current charging pile is built-in with the second current transformer, for measuring the AC charging in real time
The charging current of stake.
Further, receiving module and display module are provided on alternating-current charging pile, the receiving module receives exchange and fills
Electric stake user's takes power information, charging pile user to check that alternating-current charging pile can use charge information by the display module.
Further, the charge information includes charging current and charging duration.
Further, the communication module uses RS485 or CAN communication.
A kind of and electric vehicle alternating-current charging network-based control method, it is characterised in that：
1）First current transformer acquires the three-phase current size of the customer charge in user power utilization bus in real time, and passes to and fill
Electric network controller；
2）Charging network controller obtains the real time charging size of current of each alternating-current charging pile by communication module, and statistics is gone to work
The quantity of alternating-current charging pile in work；
3）Charging network controller is negative according to the user in the rated current size and user power utilization bus of AC network bus
The three-phase current size of lotus calculates the electric current residue active volume of AC network bus, each alternating-current charging pile is arranged automatically
Available charging current capacity the upper limit, alternating-current charging pile is sent to by communication module；
4）After intelligent phase selection control module inside alternating-current charging pile receives available charging current maximum size value, control charging
The output current of unit is no more than the value.
Further, charging network controller obtained by communication module each alternating-current charging pile real time charging electric current it is big
It is small, it is separate to judge that the alternating-current charging pile of the lighter separate and corresponding new access of load should access；When there is standby shape
The alternating-current charging pile of state is switched in use, the separate instruction that should be accessed is sent to by charging network controller by communication module
The alternating-current charging pile, intelligent phase selection control module is according to the instruction received, in the output and instruction that control charhing unit
Separate connection ensures that alternating-current charging pile has the separate separate to instruct of output current.
Further, what the receiving module of alternating-current charging pile can receive alternating-current charging pile user takes power information, according to filling
The power information of alternating-current charging pile power information and user power utilization bus acquired in electric network master controller, charging pile user
It can check that alternating-current charging pile can use charge information by display module.
The beneficial effects of the invention are as follows：
1）The use of reasonable distribution charging pile charging capacity, charging network does not interfere with normal residential electricity consumption or business is used
Electricity.
2）Multiple charging piles are in use, the three-phase current in charging network may be at equilibrium state, reduction circuit damage
Consumption, ensures the service life of transformer and the power supply safety of system.
3）Facilitate user to know alternating-current charging pile power information, improves charging pile ease of use.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structure chart of the electric vehicle alternating-current charging network of the present invention.
Specific implementation mode
It is the electric vehicle alternating-current charging network of the present embodiment, including AC network bus, charging network with reference to attached drawing 1
Bus, alternating-current charging pile, charging network bus are connect with AC network bus, are the first branches of AC network bus, exchange
Charging pile is connect with charging network bus, and charging network master controller connects AC network bus, bus-powered by AC network,
User power utilization bus is connect with AC network bus, is the second branch of AC network bus, and the setting of the first current transformer exists
The head end of user power utilization bus, the size for detecting customer charge three-phase current, current signal line and charging network master control
Device connection processed will pass to charging network master controller to the current acquisition of user power utilization bus and detection signal.
There is communication module, for realizing charging network controller and friendship between charging network controller and alternating-current charging pile
The communication connection of current charge stake.In one embodiment, communication module specifically uses RS485 or CAN communication.
AC network bus, charging network bus and user power utilization bus are three-phase four-wire system bus.Alternating-current charging pile
For three-phase four-wire power supply mode, alternating-current charging pile includes intelligent phase selection control module and charhing unit, and intelligent phase selection controls mould
The AC network bus of block and three-phase four-wire system connects, and the output end of intelligent phase selection control module and the input terminal of charhing unit connect
It connects, the output end of the charhing unit is single phase power supply.Alternating-current charging pile is built-in with the second current transformer, can measure this in real time
The charging current of alternating-current charging pile.
The real time charging current signal of each alternating-current charging pile of acquisition is passed to charging network master control by communication module
Device counts the quantity of the alternating-current charging pile in work；First current transformer acquires the user in user power utilization bus in real time
Load includes：The size of three-phase current on the loads such as illumination, commercial power, and current sampling signal is passed into charging network
Controller；Charging network controller is according to the user in the rated current size and user power utilization bus of AC network bus
The size of the three-phase current detected on load calculates the electric current residue active volume of AC network bus automatically, further according to logical
The quantity for interrogating alternating-current charging pile under the quantity and off working state for the in running order lower alternating-current charging pile that module obtains, can
To calculate the upper limit of the available charging current capacity of each alternating-current charging pile, and AC charging is sent to by communication module again
Stake；After intelligent phase selection control module inside alternating-current charging pile receives available charging current maximum size value, control charging is single
The output current of member is no more than the value.
Preferably, receiving module and display module are provided on alternating-current charging pile, receiving module can receive AC charging
Stake user's takes power information, and the alternating-current charging pile power information and user power utilization acquired in combined charge network master controller are total
The power information of line, charging pile user can check that alternating-current charging pile can use the information of charging by display module, including：Charging electricity
Stream, charging duration etc..
In another embodiment, charging network controller obtains filling in real time for each alternating-current charging pile by communication module
After electric size of current, it is separate to judge that the alternating-current charging pile of the lighter separate and corresponding new access of load should access；
When thering is the alternating-current charging pile of standby mode to be switched in use, charging network controller is separate by what should be accessed by communication module
Instruction is sent to the alternating-current charging pile, and intelligent phase selection control module controls the input terminal of charhing unit according to the instruction received
Be connected to separate in instruction, ensure alternating-current charging pile have output current it is separate for the corresponding instruction it is separate.
Certainly the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with technique
People can understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all according to this hair
The equivalent transformation or modification that the Spirit Essence of bright main technical schemes is done, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of electric vehicle alternating-current charging network, including AC network bus, charging network bus, alternating-current charging pile, charging
Network-bus is connect with AC network bus, is the first branch of AC network bus, the alternating-current charging pile and charging network
Bus connects, it is characterised in that：Further include,
Charging network master controller, the charging network master controller are bus-powered by AC network；
Current signal line, the current signal line connect the first current transformer and charging network master controller；
User power utilization bus, the user power utilization bus are connect with AC network bus, are the second branches of AC network bus；
First current transformer, first current transformer detect the customer charge three-phase current in the user power utilization bus
Size；
Communication module, the communication module are arranged inside charging network master controller and alternating-current charging pile.
2. a kind of electric vehicle alternating-current charging network as described in claim 1, it is characterised in that：The alternating-current charging pile includes
Intelligent phase selection control module and charhing unit, the output end of the intelligent phase selection control module and the input terminal of charhing unit connect
It connects, the output end of the charhing unit is single phase power supply.
3. a kind of electric vehicle alternating-current charging network as claimed in claim 2, it is characterised in that：Built in the alternating-current charging pile
There is the second current transformer, the charging current for measuring the alternating-current charging pile in real time.
4. a kind of electric vehicle alternating-current charging network as described in claim 1, it is characterised in that：It is provided on alternating-current charging pile
Receiving module and display module, the receiving module reception alternating-current charging pile user's takes power information, charging pile user to pass through institute
It states display module and checks that alternating-current charging pile can use charge information.
5. a kind of electric vehicle alternating-current charging network as claimed in claim 4, it is characterised in that：The charge information includes filling
Electric current and charging duration.
6. a kind of electric vehicle alternating-current charging network as described in claim 1, it is characterised in that：The communication module uses
RS485 or CAN communication.
Exist 7. one kind includes one of claim 1-6 claims electric vehicle alternating-current charging network-based control method, feature
In：
First current transformer acquires the three-phase current size of the customer charge in user power utilization bus in real time, and passes to charging
Network controller；
Charging network controller obtains the real time charging size of current of each alternating-current charging pile by communication module, counts work
In alternating-current charging pile quantity；
Charging network controller is according to the customer charge in the rated current size and user power utilization bus of AC network bus
Three-phase current size, calculate the electric current residue active volume of AC network bus automatically, each alternating-current charging pile be set
The upper limit that charging current capacity can be used, alternating-current charging pile is sent to by communication module；
After intelligent phase selection control module inside alternating-current charging pile receives available charging current maximum size value, control charging is single
The output current of member is no more than the value.
8. a kind of electric vehicle alternating-current charging network-based control method as claimed in claim 7, it is characterised in that：
Charging network controller obtains the real time charging size of current of each alternating-current charging pile by communication module, judges load
The alternating-current charging pile of lighter separate and corresponding new access should access separate；
When thering is the alternating-current charging pile of standby mode to be switched in use, charging network controller will should be accessed by communication module
Separate instruction is sent to the alternating-current charging pile, and intelligent phase selection control module controls charhing unit according to the instruction received
Output with instruction in it is separate be connected to, ensure alternating-current charging pile have output current it is separate for instruction it is separate.
9. a kind of electric vehicle alternating-current charging network-based control method as claimed in claim 8, it is characterised in that：AC charging
What the receiving module of stake can receive alternating-current charging pile user takes power information, according to the exchange acquired in charging network master controller
The power information of charging pile power information and user power utilization bus, charging pile user can check AC charging by display module
Stake can use charge information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849211.0A CN108583362A (en) | 2018-07-28 | 2018-07-28 | A kind of electric vehicle alternating-current charging network and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849211.0A CN108583362A (en) | 2018-07-28 | 2018-07-28 | A kind of electric vehicle alternating-current charging network and its control method |
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| Publication Number | Publication Date |
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| CN108583362A true CN108583362A (en) | 2018-09-28 |
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ID=63618332
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109318751A (en) * | 2018-10-22 | 2019-02-12 | 易事特集团股份有限公司 | A kind of electric motor intelligent AC charging system |
| CN109347128A (en) * | 2018-11-20 | 2019-02-15 | 安徽天鹏电子科技有限公司 | A kind of charging pile system and its method of equally loaded |
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| CN207098717U (en) * | 2017-08-31 | 2018-03-13 | 国家电网公司 | Taiwan area central control unit based on transformer platform area load surplus control charging pile |
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| CN209079678U (en) * | 2018-07-28 | 2019-07-09 | 广州开能智慧城市技术有限公司 | A kind of electric vehicle alternating-current charging network |
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| CN103259276A (en) * | 2013-06-04 | 2013-08-21 | 长沙高升电子电器科技有限公司 | Automatic intelligent power distribution system and power distribution method |
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Address after: 511492 6 Dong 201 Road, Donghuan street, Panyu District, Guangzhou, Guangdong, 6 Applicant after: Guangzhou full time Park IOT Technology Co.,Ltd. Address before: 511492 6 Dong 201 Road, Donghuan street, Panyu District, Guangzhou, Guangdong, 6 Applicant before: GUANGZHOU KAINENG WISDOM CITY TECHNOLOGY Co.,Ltd. |
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