CN106143198A - A kind of electric automobile direct-current charging post with multiple charging port and control method - Google Patents
A kind of electric automobile direct-current charging post with multiple charging port and control method Download PDFInfo
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- CN106143198A CN106143198A CN201610578937.6A CN201610578937A CN106143198A CN 106143198 A CN106143198 A CN 106143198A CN 201610578937 A CN201610578937 A CN 201610578937A CN 106143198 A CN106143198 A CN 106143198A
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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
- B60L53/66—Data transfer between charging stations and vehicles
- B60L53/665—Methods related to measuring, billing or payment
-
- 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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
-
- 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
-
- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- 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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- 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
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses a kind of electric automobile direct-current charging post with multiple charging port and control method.This electric automobile direct-current charging post includes human-computer interaction module, control module, charging module and many charging guns, and wherein human-computer interaction module is connected with control module, and control module is connected with charging module and each charging gun respectively.Wherein, control module controls charging module and presets, for the offer of each charging gun, the charge power distributed first, and is the reallocation that each charging gun is charged power to remaining charge power by charge power distribution priority orders.This electric automobile direct-current charging post can be multiple stage charging electric vehicle simultaneously, and unique charge control method achieves the maximization of charge efficiency, effectively saves the time of user's charging.
Description
Technical field
The present invention relates to a kind of electric automobile charging pile, particularly relate to a kind of electric automobile with multiple charging port straight
Current charge stake, also relates to this charging pile and realizes the method that charging process controls, belong to electric vehicle engineering field.
Background technology
Along with petering out of petroleum resources, electric automobile has obtained good development in recent years.Electric automobile refers to
With vehicle power as power, drive the vehicle of wheels travel with motor.It is compared to the more energy-conserving and environment-protective of gasoline vehicle, the most just
Promoted by countries in the world.
Electric automobile charging pile is a kind of facility to pure electric automobile/hybrid vehicle charging, can be fixed on ground
Face or wall, be installed on public building (public building, market, Public Parking etc.) and parking lot, residential quarter or charging station
In, according to the charging electric vehicle that different electric pressures is various model.Charging pile on the one hand incoming transport electrical network, the opposing party
In the face of outer offer charging plug or charging gun, it is used for as charging electric vehicle.
In the Chinese patent application of Application No. 201510401047.3, disclose the AC charging that a kind of unit four fills
Stake.This alternating-current charging pile and the vehicle-mounted charger of electric automobile with the use of, can realize on an alternating-current charging pile simultaneously
Four electric automobiles charge, for customer selecting simultaneously, it is ensured that the use that client is convenient, safe.But, due to this charging pile
It is only electric automobile offer to charge at a slow speed, so, using this charging pile is the inefficient of charging electric vehicle, it is impossible to meet
The demand of many electric vehicle rapid chargings, nor reasonably can charge according to the different demands of different electric automobiles
Power energy allocation, is finally reached utilization rate and the charge efficiency of the charge capacity improving charging pile.
Summary of the invention
Primary technical problem to be solved by this invention is to provide a kind of electric automobile with multiple charging port straight
Current charge stake.
Another technical problem to be solved by this invention is to provide a kind of above-mentioned charging pile to realize what charging process controlled
Method.
In order to realize foregoing invention purpose, the present invention uses following technical scheme:
A kind of electric automobile direct-current charging post with multiple charging port, including control module, charging module and many
Charging gun, described control module is connected with described charging module and each described charging gun respectively；
Described control module controls charging module, provides for each described charging gun and presets the charging merit distributed first
Rate；
The described control module residue charge power to charging pile, as charge power distribution priority orders be each described in fill
Electricity rifle is charged the reallocation of power.
The most more preferably, described charging module includes active power factor correction unit and DC/DC unit, described DC/DC
The input of unit is connected with the outfan of described APFC unit.
The most more preferably, it is connected with i-th charging gun after the charging port parallel connection of i-th DC/DC of described charging module,
I-th electric automobile is charged by described i-th charging gun, and wherein i is positive integer.
The most more preferably, described charging gun is provided with charging port and COM1；Described charging gun is by described communication ends
On the one hand mouth is connected with described control module, is on the other hand connected with electric automobile one_to_one corresponding；Each described charging gun passes through institute
State charging port to be connected with corresponding DC/DC.
The most more preferably, the input of the APFC unit in described charging module is connected in parallel, and
It is connected with alternating current power supply.
The most more preferably, described electric automobile direct-current charging post also includes human-computer interaction module, described human-computer interaction module
It is connected with described control module.
A kind of electric automobile direct-current charging post realizes the method that charging process controls, and comprises the steps:
Step S1: control module receives the BMS from each electric automobile to be charged and the information of charging module；
Step S2: according to the information of electric automobile to be charged corresponding to every charging gun, preset every charging gun first
The charge power of sub-distribution；
Step S3: according to the demand power of each electric automobile BMS, with the maximum rated power of every charging gun and in advance
Setting the charge power distributed first to be limited, control module controls charging module provides the demand merit of BMS for corresponding charging gun
Rate；
Step S4: control module calculates the current charge power of every charging gun in real time, according to the general power of charging pile
Thus calculate the current residual charge power of charging pile；
Step S5: when charging pile current residual charge power is more than zero, if control module has detected electric automobile
BMS demand power be not met for, then according to charge power distribution priority orders the current residual of charging pile is filled
Electrical power distribution gives corresponding charging gun, to meet the demand power of each electric automobile BMS as far as possible；
Step S6: when reaching predetermined end of charge voltage, control module terminates charging process.
The most more preferably, in step 2, the described maximum rated power of described charging gun is: P=P(DC/DC)× k, wherein,
Described P(DC/DC)For the maximum charge power of i-th DC/DC in each described charging module, described k is the number of charging module
Amount.
The most more preferably, in step 3, described control module controls i-th DC/DC in each described charging module, jointly
The charge power provided for i-th charging gun no more than presets the charge power distributed first.
The most more preferably, in step 5, i-th charging gun is being charged in the redistribution process of power, to set in advance
The fixed charge power distributed first is limited with the charge power sum of reallocation, and described control module controls each described charging mould
In block, i-th DC/DC provides charge power for described i-th charging gun.
The most more preferably, in step 5, when the demand power of electric automobile BMS has been met, or charging pile is worked as
When front residue charge power is equal to zero, the most it is not charged power reallocation.
The most more preferably, in step 6, when the termination electricity that charging voltage and the electric automobile BMS of the output of DC/DC unit specify
When pressing identical, it is zero that described control module controls the charging current of described DC/DC unit output, terminates charging process notifier
The corresponding Vehicular charging of machine interactive module is the fullest.
The electric automobile direct-current charging post with multiple charging port provided by the present invention, is on the one hand each charging
Rifle provides charge power set in advance, on the other hand according to the total rated power of charging pile and current charge power, calculates in real time
Go out the charging dump power of this charging pile, and by reallocation charge power distribution priority orders, corresponding charging gun is filled
Electricity dump power reallocation, makes each charging gun meet demand power and the electric current of charging electric automobile BMS as far as possible, thus real
Show the maximization of charging pile charge efficiency, save the time of user's charging.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of electric automobile direct-current charging post provided by the present invention；
Fig. 2 is the method flow diagram that electric automobile direct-current charging post provided by the present invention realizes that charging process controls.
Detailed description of the invention
With specific embodiment the summary of the invention of the present invention done below in conjunction with the accompanying drawings and describe in detail further.
As it is shown in figure 1, provided by the present invention, there is (the abbreviation charging of multiple charging port electric automobile direct-current charging post
Stake), wherein, multiple charging ports refer to be connected in parallel by the outfan of the corresponding DC/DC in multiple charging modules and form
Multiple charging ports, are connected charging gun with charging port, are charged for corresponding electric automobile.This charging pile includes man-machine
Interactive module, control module, charging module, charging gun.Wherein, human-computer interaction module is connected with control module, and control module is divided
It is not connected with charging module and charging gun.Wherein, externally output unification charging gun, multiple charging ports refer to by multiple charging moulds
The outfan of the corresponding DC/DC in block is connected in parallel multiple charging ports of composition, is connected with charging port by charging gun,
It is charged for corresponding electric automobile.
Human-computer interaction module includes touching display screen, window of swiping the card.When user starts charging, by swiping the card, window is carried out
Swipe the card and the identity of charge user be identified, charging terminate after by touching on display screen corresponding menu option to electronic
The expense of vehicle charging is settled accounts.This touch display screen can also display to the user that charging voltage, electricity, electric current and time
Etc. information.Such as, by this touch display screen can demonstrate the battery total capacity of electric automobile, current capacities, charging current,
The information such as end of charge voltage, it is also possible to demonstrate the letters such as charging current that charging module exports, the charging voltage of output, alarm
Breath.This human-computer interaction module not only provide the user convenient service, also provides great convenience to staff.
Control module is for receiving from battery management unit (Battery Management System, referred to as BMS)
Information, the information such as the battery total capacity of such as electric automobile, current capacities, charging current, end of charge voltage.This control mould
Block is additionally operable to receive the job information of charging module, the such as charging current of charging module output, the charging voltage of output, alarm
Etc. information.The different information received are fed back to human-computer interaction module by control module, facilitate staff and user use,
Inquiry.It is right that BMS (battery management unit) information of electric automobile and the job information of charging module also can be carried out by control module
Ratio, then control module controls charging module provides the power distributing first and reallocating and the electricity for electric automobile for charging gun
Charge in pond.During charging batteries of electric automobile, control module controls the charging total current of charging module output and is less than or equal to
The charging current that electric automobile BMS needs, battery is monitored the most in real time by control module with charging module, monitors charging module
The end of charge voltage that the charging voltage of output specifies less than electric automobile BMS.When the charged electrical being charged to charging module output
During the end of charge voltage that pressure specifies equal to electric automobile BMS, it is zero that control module controls the charging current of charging module output,
Terminate charging process and to feed back to the corresponding charging electric vehicle of human-computer interaction module the fullest, and fill touching display screen display
Electricity terminates.
This charging pile includes multiple charging module, and each charging module includes an APFC unit
And DC/DC (DC-DC converter) unit (PFC).Wherein, DC/DC unit is individual by n (n=1,2,3 ... i, i are positive integer)
DC/DC (DC-DC converter) composes in parallel, and n DC/DC realizes the controlled output of voltage x current by DC converting.Often
The charging port of the input of one DC/DC unit and a PFC (APFC unit) is connected, each DC/
In DC unit, the outfan of n DC/DC charging gun and controls mould with corresponding n (n=1,2,3 ... i, i are positive integer) respectively
Block is connected.Specifically, charging gun is provided with charging port and COM1, and charging port is by charging cable and each DC/DC
The outfan of unit is connected；COM1 by communication cable respectively with the BMS (battery management unit) of electric automobile with control
Module is connected.The input of PFC (APFC unit) unit in multiple charging modules is connected in parallel and hands over
Stream power supply is connected, and by the alternating voltage certain for the offer of this charging module, this charging module can be converted into corresponding direct current
Voltage.As n=i, after the outfan parallel connection of i-th DC/DC in each charging module, it is then connected to i-th charging gun,
By charging gun i to i-th charging electric vehicle.
In one embodiment of the invention, charging module uses the mould of PFC unit band multiple independent DC/DC output
Formula, makes charging pile use more flexible.(i.e. charging pile tool is independently exported with common 2 (i=1,2) road below in conjunction with Fig. 2
Have 2 independent charging ports, i.e. can connect 2 charging guns) or 4 (i=1,2,3,4) road independently exports, and (i.e. charging pile has
Have 4 independent charging ports, i.e. can connect 4 charging guns) as a example by this charging pile realized the method that charging process controls
It is described in further detail.
Embodiment 1: be same class vehicle condition for all vehicles to be charged, as a example by 4 tunnels independently export:
As in figure 2 it is shown, the method that electric automobile direct-current charging post provided by the present invention realizes charging process control is:
Step S1: control module receives the BMS from each electric automobile to be charged and the information of charging module.
By the battery management unit (BMS1, BMS2, BMS3, BMS4) of 4 electric automobiles by communication cable respectively with right
The COM1 of the charging gun (1,2,3,4) answered is connected, by the outfan of the corresponding DC/DC unit in each charging module also
It is linked togather, is connected with control module additionally by communication bus.Thus receive the battery total capacity of electric automobile, currently hold
The information such as amount, charging current, end of charge voltage, battery temperature, and the charging current of charging module output, the charging of output
Voltage, alarm (charging module and control module real-time Communication for Power, it is ensured that charging module is controlled by control module and charging duty
Normally, can protect in time if any abnormal conditions generation charging pile and carry out audible and visual alarm by human-computer interaction module) etc. information.And
And, during charging electric vehicle, realize current-sharing by bus between i-th DC/DC in each DC/DC unit and fill
Electricity.
Step S2: according to the information of electric automobile to be charged corresponding to every charging gun, preset every charging gun first
The charge power of sub-distribution.
It is then connected to the 1st charging gun, by each by after the outfan parallel connection of the in each charging module the 1st DC/DC
Individual charging module is then connected to the 2nd charging gun, by the in each charging module the 3rd after the outfan parallel connection of the 2nd DC/DC
The 3rd charging gun it is then connected to, by the outfan of the in each charging module the 4th DC/DC after the outfan parallel connection of individual DC/DC
The 4th charging gun it is then connected to after parallel connection.
Specifically, when all vehicles to be charged are same class vehicle, it are the most all motorbus or are all small-sized private
Family's car etc., charging pile general power P provided by the present invention is total=P(PFC-1)+P(PFC-2)+P(PFC-m)(m PFC, m are positive integer),
The peak power of every charging gun is not more than the general power of charging pile, and according to the demand power of each electric automobile BMS
Size, the charge power (charge power of charging gun maximum output) that the presetting of every charging gun is distributed first can be average
Arranging (can also arbitrarily arrange) is 0.25PAlways, it should be noted that: every charging gun preset the charging distributed first
Power not can exceed that the peak power of every charging gun, and the charge power sum of all of charging gun being in charged state
Not can exceed that the general power of charging pile.
Such as, when this charging pile general power P total=200KW time, in 4 charging guns, the peak power of each charging gun
For 200KW, considering from equipment economic angle, the peak power of each charging gun selectes 100KW；The need of 4 electric automobile BMS
Power is asked to be respectively as follows: 60KW, 50KW, 40KW, 20KW.Peak power according to each charging gun and each electric automobile
The size of the demand power of BMS, charge power (the filling of charging gun maximum output that the presetting of every charging gun is distributed first
Electrical power) can averagely to arrange (can also arbitrarily arrange) be 50KW.The maximum rated power of every charging gun is: P=
P(DC/DC)× k, P(DC/DC)For the charge power of i-th DC/DC in each charging module, k (k is positive integer) is charging module
Quantity, i-th DC/DC of each charging module has identical power, and the DC/DC that i value is different can have difference
Power.
Step S3: according to the demand power of each electric automobile BMS, with the maximum rated power of every charging gun and in advance
Setting the charge power distributed first to be limited, control module controls charging module provides the demand merit of BMS for corresponding charging gun
Rate.
Such as, owing to the peak power of every charging gun is 200KW, what the presetting of every charging gun was distributed first fills
Electrical power is 50KW, if the demand power of 4 electric automobile BMS is respectively as follows: 60KW, 50KW, 40KW, 20KW, and this fills
Electricity stake has 2 (m=2) individual charging module, so, control module is distributed power first and is respectively as follows: charging gun 1 and distributes filling of 50KW
Electrical power, charging gun 2 distribute the charge power of 50KW, charging gun 3 distributes the charge power of 40KW, charging gun 4 distributes 20KW's
Charge power, charging gun (1,2,3,4) corresponds to electric automobile (1,2,3,4) and is charged.Specifically, control module controls two
The voltage of the DC/DC1 (the 1st DC/DC) in individual charging module and electric current, common for filling after making two DC/DC1 outfan parallel connections
Electricity rifle 1 provides the charge power being not more than 50KW；Control module controls the DC/DC2 (the 2nd DC/DC) in two charging modules
Voltage and electric current, make jointly to provide the charge power being not more than 50KW after two DC/DC2 outfan parallel connections for charging gun 2；Control
Molding block controls voltage and the electric current of the DC/DC3 (the 3rd DC/DC) in two charging modules, makes two DC/DC3 outfans also
The charge power being not more than 40KW is provided for charging gun 3 after connection jointly；Control module controls the DC/DC4 in two charging modules
The voltage of (the 4th DC/DC) and electric current, jointly provide for charging gun 4 after making two DC/DC4 outfan parallel connections and be not more than 20KW
Charge power.During charging electric vehicle, control module controls the charging total current of DC/DC unit output and is less than or equal to
The charging current that batteries of electric automobile needs, prevents the battery of charging current excessive damage electric automobile.
Step S4: control module calculates the current charge power of every charging gun in real time, according to the general power of charging pile
Thus calculate the current residual charge power of charging pile.
It is 160KW that control module calculates the summation of 4 charging gun charge powers in real time, further according to charging pile general power P
Always=200KW, calculating residue charge power is 40KW.
Specifically, first charging gun is 50KW owing to distributing power first, although BMS demand 60KW, but also can only be with
The charge power work of 50KW；Second charging gun due to distribute first power also for 50KW, BMS demand be also 50KW, so
Just work with the charge power of 50KW；3rd charging gun is also 50KW owing to distributing power first, but BMS demand 40KW,
So can only work with the charge power of 40KW；4th charging gun is also 50KW owing to distributing power first, but BMS demand
20KW, so can only work with the charge power of 20KW；So, current charging general power is: 50KW+50KW+40KW+20KW=
160KW, then, dump power of currently charging: charging pile general power-currently charge general power=40KW
Step S5: when charging pile current residual charge power is more than zero, if control module has detected electric automobile
The demand power of BMS is not met for, then the current residual of charging pile charged according to charge power distribution priority orders
Power distributes to corresponding charging gun, to meet the demand power of each electric automobile BMS as far as possible.
So, control module, to first charging gun reallocation charge power 10KW, meets the BMS charge power of correspondence
Requirement for 60KW.
It is limited presetting the charge power distributed first and the charge power sum presetting reallocation, controls mould
Block controls i-th DC/DC in each charging module provides charge power for i-th charging gun with corresponding BMS demand, if do not had
The demand power having dump power or each electric automobile BMS is all met, then software is not reallocated charging dump power.
Specifically, when charging pile current residual charge power is more than zero, if control module has detected electric automobile
The demand power of BMS is not met for, then according to charging gun charge power reallocation current by charging pile of priority orders
Residue charge power distributes to corresponding charging gun, to meet the demand power of each electric automobile BMS as far as possible；If electric automobile
The demand power of BMS all has been obtained for meeting, and is not the most charged power reallocation.When charging pile current residual charge power
During equal to zero, the most it is not charged power reallocation.
Such as, in above-mentioned charging gun (1,2,3,4), the demand power of the BMS of electric automobile 1 is 60KW, and divides first
Joining charge power and only have 50KW, the poorest 10KW of electric automobile 1 charge power could meet the power demand of its BMS, and other are electric
The demand power of electrical automobile BMS is met the most, so, the charge power automatically reallocated charging gun 1 software is 10KW,
The charge power summation making the software distribution of charging gun 1 is 60KW (charge power distributed first and the charge power of reallocation
Sum), control module controls the charging voltage of the DC/DC1 in two above-mentioned charging modules with charging current jointly for charging
Rifle 1 provides the charge power of 60KW, makes charging gun 1 charge electric automobile 1 with the charge power of 60KW so that it is to meet electronic vapour
The demand power of the BMS of car 1.Now, the dump power of charging pile is 30KW, due to the demand power of the BMS of 4 electric automobiles
All it is met, so dump power is no longer reallocated by software.
Step S6: when reaching predetermined end of charge voltage, control module terminates charging process.
When the charging voltage of control module control charging module output is whole equal to the charging that corresponding electric automobile BMS specifies
Only during voltage (maximum voltage), it is zero that control module controls the charging current of corresponding DC/DC unit output, terminates charging process
And notify that the charging of electric automobile that human-computer interaction module is corresponding is the fullest, by touching display screen prompting " charging terminates ".
After charging terminates, user passes through human-computer interaction module according to actual charge capacity and current electricity rates
Carry out payment clearing.
Embodiment 2: for the situation that all vehicles to be charged are inhomogeneity vehicle, independently export (charging gun) with 2 tunnels
As a example by:
The method that this embodiment 2 realizes charging process control also according to above-mentioned steps S1 to step S6 is that electric automobile enters
Row charging, unique unlike: in step s 2, when all vehicles to be charged are different vehicle, the most existing large-scale visitor
Car has again small-sized private car etc., and same charging pile general power P provided by the present invention is total=P(PFC-1)+P(PFC-2)+P(PFC-m)(m
PFC, m are positive integer), the peak power of every charging gun is not more than the general power of charging pile, and according to each electric automobile
The size of the demand power of BMS, presetting the maximum charge power distributed first and can arbitrarily arranging of every charging gun, need
It is to be noted that the charge power distributed first that presets of every charging gun not can exceed that the specified merit of every charging gun
Rate, and the charge power sum of all charging guns being in charged state not can exceed that the general power of charging pile.
Such as, when this charging pile general power P total=200KW time, in 2 charging guns, the peak power of each charging gun
For 200KW, the demand power of 2 electric automobile BMS is respectively as follows: 100KW and 70KW.Peak power according to each charging gun
And the size of the demand power of each electric automobile BMS, charging gun 1 preset the maximum charge power distributed first can
To be set to 120KW, the maximum charge power distributed first that presets of charging gun 2 could be arranged to 80KW.Every charging
The maximum rated power of rifle is: P=P(DC/DC)× k, P(DC/DC)Maximum charge merit for i-th DC/DC in each charging module
Rate, k (k is positive integer) is the quantity of charging module, and each i-th DC/DC has identical power, the DC/DC that i value is different
Can have different power.
During charging electric vehicle, control module controls the charging total current of DC/DC unit output less than or equal to electricity
The charging current that electrical automobile battery needs, prevents the battery of charging current excessive damage electric automobile.Other steps are with embodiment 1
Described, do not repeat them here.
In electric automobile direct-current charging post provided by the present invention, on the one hand provide for each charging gun and make a reservation in advance
The charge power distributed first, on the other hand according to the total rated power of charging pile and current charge power, calculates this in real time and fills
The charging dump power of electricity stake, and be charged remaining to corresponding charging gun by reallocation charge power distribution priority orders
Power is reallocated, and makes each charging gun meet demand power and the electric current of charging electric automobile BMS, it is achieved thereby that fill as far as possible
The maximization of electricity stake charge efficiency, saves the time of user's charging.
Above electric automobile direct-current charging post provided by the present invention and control method are described in detail.To this
For the those of ordinary skill in field, on the premise of without departing substantially from true spirit to it done any obviously
Change, all will belong to the protection domain of patent right of the present invention.
Claims (12)
1. an electric automobile direct-current charging post with multiple charging port, it is characterised in that include control module, charging mould
Block and many charging guns, described control module is connected with described charging module and each described charging gun respectively；
Described control module controls charging module, provides for each described charging gun and presets the charge power distributed first；
The described control module residue charge power to charging pile, is each described charging gun by charge power distribution priority orders
It is charged the reallocation of power.
2. electric automobile direct-current charging post as claimed in claim 1, it is characterised in that:
Described charging module includes active power factor correction unit and DC/DC unit, the input of described DC/DC unit and institute
The outfan stating APFC unit is connected.
3. electric automobile direct-current charging post as claimed in claim 2, it is characterised in that:
It is connected with i-th charging gun after the charging port parallel connection of i-th DC/DC of described charging module, described i-th charging gun
Being charged i-th electric automobile, wherein i is positive integer.
4. electric automobile direct-current charging post as claimed in claim 1, it is characterised in that:
Described charging gun is provided with charging port and COM1；Described charging gun is by described COM1 one side and described control
Molding block is connected, and is on the other hand connected with electric automobile one_to_one corresponding；Each described charging gun passes through described charging port with corresponding
DC/DC be connected.
5. electric automobile direct-current charging post as claimed in claim 1, it is characterised in that:
The input of the APFC unit in described charging module is connected in parallel, and is connected with alternating current power supply.
6. electric automobile direct-current charging post as claimed in claim 1, it is characterised in that:
Described electric automobile direct-current charging post also includes human-computer interaction module, described human-computer interaction module and described control module phase
Even.
7. in claim 1～6, electric automobile direct-current charging post described in any one realizes the method that charging process controls,
Comprise the steps:
Step S1: control module receives the BMS from each electric automobile to be charged and the information of charging module；
Step S2: according to the information of electric automobile to be charged corresponding to every charging gun, preset every charging gun and divide first
The charge power joined；
Step S3: according to the demand power of each electric automobile BMS, with the maximum rated power of every charging gun and preset
The charge power distributed first is limited, and control module controls charging module provides the demand power of BMS for corresponding charging gun；
Step S4: control module calculates the current charge power of every charging gun in real time, according to the general power of charging pile thus
Calculate the current residual charge power of charging pile；
Step S5: when charging pile current residual charge power is more than zero, if control module detects electric automobile BMS's
Demand power is not met for, then divided by the current residual charge power of charging pile according to charge power distribution priority orders
The corresponding charging gun of dispensing, to meet the demand power of each electric automobile BMS as far as possible；
Step S6: when reaching predetermined end of charge voltage, control module terminates charging process.
8. electric automobile direct-current charging post as claimed in claim 6 realizes the method that charging process controls, it is characterised in that:
In step 2, the described maximum rated power of described charging gun is: P=P(DC/DC)× k, wherein, described P(DC/DC)For each
The maximum charge power of i-th DC/DC in described charging module, described k is the quantity of charging module.
9. electric automobile direct-current charging post as claimed in claim 6 realizes the method that charging process controls, it is characterised in that:
In step 3, described control module controls i-th DC/DC in each described charging module, is that i-th charging gun carries jointly
The charge power of confession no more than presets the charge power distributed first.
10. electric automobile direct-current charging post as claimed in claim 6 realizes the method that charging process controls, it is characterised in that:
In step 5, i-th charging gun is being charged in the redistribution process of power, to preset filling of distributing first
Electrical power is limited with the charge power sum of reallocation, and described control module controls i-th DC/DC in each described charging module
Charge power is provided for described i-th charging gun.
11. electric automobile direct-current charging posts as claimed in claim 6 realize the method that charging process controls, it is characterised in that:
In step 5, when electric automobile BMS demand power be met, or charging pile current residual charging merit
When rate is equal to zero, the most it is not charged power reallocation.
12. electric automobile direct-current charging posts as claimed in claim 6 realize the method that charging process controls, it is characterised in that:
In step 6, when the charging voltage of DC/DC unit output is identical with the final voltage that electric automobile BMS specifies, described control
It is zero that molding block controls the charging current of described DC/DC unit output, terminates charging process and notifies that human-computer interaction module is corresponding
Vehicular charging the fullest.
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| CN201610578937.6A CN106143198B (en) | 2016-07-20 | 2016-07-20 | A kind of electric automobile direct-current charging post and control method with multiple charging ports |
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| CN106143198B CN106143198B (en) | 2018-04-17 |
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Effective date of registration: 20170818 Address after: Longgang District of Shenzhen City, Guangdong province 518111 Pinghu street Pinghu community goose Tian Er Lu No. 9 Applicant after: Shenzhen Baolai Technology Co. Ltd. Address before: 100176 Beijing city Daxing District Changxin Beijing economic and Technological Development Zone No. 9 Les Loges Du Park Hotel Building 2 Applicant before: Wang Zhen |
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