CN106183876A - A kind of charge/discharge control method of bidirectional electric automobile Intelligent charging spot - Google Patents
A kind of charge/discharge control method of bidirectional electric automobile Intelligent charging spot Download PDFInfo
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- CN106183876A CN106183876A CN201610725041.6A CN201610725041A CN106183876A CN 106183876 A CN106183876 A CN 106183876A CN 201610725041 A CN201610725041 A CN 201610725041A CN 106183876 A CN106183876 A CN 106183876A
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000003993 interaction Effects 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 75
- 238000004891 communication Methods 0.000 claims description 48
- 238000011065 in-situ storage Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000002123 temporal effect 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
- B60L53/66—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
- B60L53/30—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
- 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
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- 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
Landscapes
- 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 invention belongs to electric automobile and electrical network two-way interaction technical field, be specifically related to the charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot.The charge/discharge control method of bidirectional electric automobile Intelligent charging spot of the present invention comprises the following steps: (1), set up a gateway control cabinet between multiple centralized charging piles, it is judged that operation of power networks environment accesses if appropriate for electric automobile；(2), under charging pile normal operation, complete IC-card and swipe the card certification；(3), charge/discharge control unit receive the above-mentioned information on IC-card, whether detection car owner has traffic offence to disobey record；(4), user select charging module, then be charged according to charge control method；(5), user select discharge module, then carry out discharging and obtaining income according to discharge control method；(6), card reader receives user's more fresh information that charge/discharge control unit sends, and by more fresh information write IC-card, prints bill；(7), prompting user card punching terminates.
Description
Technical field
The invention belongs to electric automobile and electrical network two-way interaction technical field, be specifically related to a kind of bidirectional electric automobile intelligence
The charge/discharge control method of charging pile.
Background technology
Along with the fast development of China's electric automobile, within 2015, China has become as the electric automobile market that the whole world is maximum.
Electric automobile has temporal controllability and mobility spatially, can not only be used for load charging and again may be used in power system
Electric energy is provided as distributed energy storage.And optimizing of electric automobile charging pile designs the dual angle that can give full play to electric automobile
Color.
The charging modes of electric automobile mainly includes charging pile, charging station, electrical changing station at present.For large-scale residential block, do
Electrically-charging equipment and concentration electrical changing station near public district all can be as distributed energy storage on the basis of meeting user's charge requirement
Centrality participates in dispatching of power netwoks.Additionally, formulate tou power price according to network load, user's charging can be controlled to a certain extent
The distribution of time, is more conducive to electric automobile and participates in dispatching of power netwoks.It addition, all kinds of electrically-charging equipment of electric automobile is adjusted for performing electrical network
Degree requirement, needs to detect in real time the operation conditions of electrical network so that charging pile can carry out selectivity discharge and recharge, for electric automobile electricity
The service life in pond provides guarantee.Therefore need on market one can either safeguard battery, again can realize electronic
The control method that automobile is interactive with electrical network close friend.
Summary of the invention
It is an object of the invention to provide the discharge and recharge of a kind of safe and reliable orderly bidirectional electric automobile Intelligent charging spot
Control method.
The charge/discharge control method of bidirectional electric automobile Intelligent charging spot of the present invention, comprises the following steps:
(1), between multiple centralized charging piles, a gateway control cabinet is set up, real-time by the electrical network in gateway control cabinet
Detector unit detects operation of power networks environment in real time, according to " quality of power supply-utility network harmonic wave " GB/T 14549-93 and " electric energy
Quality-supply voltage deviation " the GB/T 12325-2008 requirement to 380V utility network, it is judged that whether operation of power networks environment fits
Conjunction electric automobile accesses, if operation of power networks environment reaches requirement, then charging pile is properly functioning, otherwise, by gateway control cabinet
In-situ compensation device compensate, and operation of power networks environment is constantly detected；
(2), under charging pile normal operation, after charging gun is docked by user with Vehicular charging socket, at charging pile
On complete IC-card and swipe the card certification, the card reader of charging pile obtains user profile, and the BMS battery management system on charging pile obtains simultaneously
Take the information of Vehicular battery, and the information of user profile and Vehicular battery is transferred to the charge/discharge control unit of charging pile also
Shown by touch screen；
(3), each electric automobile all wear an IC-card, this card corresponding to the number-plate number of electric automobile, energy after swiping the card
Show the traffic offence note in violation of rules and regulations of car owner's identity information, number-plate number information, Stored Value information and electric automobile on the touchscreen
Record, charge/discharge control unit receives the above-mentioned information on IC-card, and whether detection car owner has traffic offence to disobey record, if having, fill/
Control of discharge unit sends signal to touch screen, and display terminates service；If no, prompting user is at charging module and discharge module
In carry out function selecting；
(4) if user selects charging module, then it is charged according to charge control method；
(5) if user selects discharge module, then carry out discharging and obtaining income according to discharge control method；
(6), card reader receives user's more fresh information that charge/discharge control unit sends, and more fresh information is write IC-card
In, print bill；
(7), prompting user card punching terminates.
Further, gateway control cabinet of the present invention is by microprocessor, the real-time detector unit of electrical network, local compensation dress
Put, human-computer interaction interface forms, and microprocessor and grid dispatching center two-way communication, for receiving what grid dispatching center sent
Discharge and recharge instruction and charging tou power price, electric discharge electricity price information, it is achieved the grid dispatching center pipe to multiple centralized charging piles
Reason；Microprocessor and electrical network real-time detector unit two-way communication, for detection operation of power networks environment in real time, and judge operation of power networks
Whether environment meets 380kV utility network requirement；Microprocessor and the charge/discharge control unit two-way communication of charging pile, if electric
Network operation environment meets requirement, then charging pile is properly functioning and receives discharge and recharge instruction and the electricity price information that microprocessor sends,
And the duty of each charging pile feeds back to microprocessor；Microprocessor and in-situ compensation device two-way communication, if operation of power networks
Environment is unsatisfactory for requirement, then send enabled instruction to in-situ compensation device, for compensating power with administer harmonic wave；Micro-process
Device and human-computer interaction interface two-way communication, for showing charging tou power price and electric discharge electricity price information and the work of each charging pile
State is checked for user and management personnel.
Charging pile of the present invention is by charge/discharge control unit, BMS battery management system, coin recognition unit, Card Reader
Device, serial ports keyboard, touch screen, metering electric energy meter, printer, two way convertor, voltage/current signals sampling modulate circuit, drives
Galvanic electricity road forms, charge/discharge control unit and the microprocessor two-way communication of gateway control cabinet, is used for managing multiple charging concentratedly
Stake；Charge/discharge control unit and BMS battery management system two-way communication, for detecting the information of Vehicular battery；Discharge charge is automatically controlled
Unit processed and touch screen two-way communication, be used for receiving user to set information, and user's more fresh information fed back to touch screen；Fill/
Control of discharge unit is two-way with card reader to be connected, and for receiving the information of user's IC-card, and user's more fresh information is write IC-card
In；Charge/discharge control unit and voltage and current signal sampling modulate circuit one-way communication, be used for receiving voltage and current signal；Fill/
Control of discharge unit is sent to drive circuit by PWM port output signal, and drive circuit provides for two way convertor and drives letter
Number；Charge/discharge control unit and metering electric energy meter one-way communication, be used for receiving charge/discharge metering signal；Charge/discharge controls single
Unit and coin recognition unit one-way communication, be used for receiving user and charge amount information；Charge/discharge control unit and serial ports keyboard list
To communication, for receiving user's information by keyboard to set up.
Gateway control cabinet of the present invention receives tou power price information and the electric discharge electricity price letter that grid dispatching center is formulated
Breath, and checked for user and management personnel by the touch screen display of gateway control cabinet；Also electricity price information is sent to charging pile
Charge/discharge control unit, the step after being used for.
The charge control method of charging module of the present invention comprises the following steps:
(1) user selects charging module, enters charging and initializes, is detected by the BMS battery management system on charging pile
The power shortage electricity of Vehicular battery, and show on the touch screen of charging pile；
(2) select the means of payment: swipe the card and pay and pay in cash, select payment then brush in the card-brushing groove of charging pile of swiping the card
Card, the input amount of money also determines, selects to pay in cash, add coin in adding of charging pile and determine payment at coin, enters coin and knows
Other system is identified and determines；
(3) charging modes is selected: charge immediately, recommend charging or reservation charging；If selecting to charge immediately, then charging pile
It is immediately performed charging with current charging price；If selecting to recommend charging, selecting this, electric automobile is accessed electrical network, gateway control
Cabinet processed detects when network load low-valley interval and the electrical network quality of power supply reach requirement, charging pile just with user set the amount of money and
Spot Price calculates charge capacity, for charging electric vehicle, if selecting reservation charging, first must input subscription time, by electronic
Automobile accesses electrical network, and the final electricity price information by the reservation period calculates charge capacity, and subscription time arrives and performs charging；
(4), after having selected, the charge/discharge control unit of charging pile calculates according to the given amount of money and tou power price information
Given charge capacity；
(5) the charge/discharge control unit of charging pile relatively gives charge capacity and Vehicular battery power shortage electricity size, if giving
Determine charge capacity≤Vehicular battery power shortage electricity, then charge/discharge control unit D.C. contactor in charge/discharge loop sends
Power on signal, D.C. contactor closes, starts to charge up, and enters charging process, in charging process, by being series at Vehicular battery
And the metering electric energy meter measurement charge capacity between electrical network, charge/discharge control unit charge information is sent to touch screen, uses
Charge capacity is shown in real time, when charge/discharge control unit detects actual charge capacity equal to given charge capacity, fill/
Control of discharge unit D.C. contactor in charge/discharge loop sends power-off signal, and D.C. contactor is opened, charging complete；
If given charge capacity >=Vehicular battery power shortage electricity, then charge/discharge control unit calculates unnecessary given electricity, and with currently
Electricity price is converted into remaining sum, in typing user more fresh information, then by straight in charge/discharge loop of charge/discharge control unit
Stream catalyst sends power on signal, and D.C. contactor closes, and is charged, constantly detects battery by BMS battery management system
Information about power, when battery charging state show reach 100% time, charge/discharge control unit direct current in charge/discharge loop
Catalyst sends power-off signal, and D.C. contactor is opened, charging complete；
(6) charge information and remaining sum are sent to touch screen by the charge/discharge control unit of charging pile, by touching screen display
Illustrating charge information and remaining sum, charging process terminates.
The discharge control method of discharge module of the present invention comprises the following steps:
(1) user selects discharge module, enters electric discharge and initializes, and is detected by the BMS battery management system of charging pile and works as
Front battery information, user arranges cut-off discharge battery carrying capacity according to present battery information；
(2) the operation of power networks environment of the electrical network of gateway control cabinet real-time detector unit detection charging pile, treats load boom period
Time gateway control cabinet microprocessor receive grid dispatching center send electric discharge instruction, by electric discharge instruction be sent to charging pile
Charge/discharge control unit；
(3) the charge/discharge control unit of charging pile compares the big of cut-off discharge battery carrying capacity and present battery carrying capacity
Little, if cut-off discharge battery carrying capacity >=present battery carrying capacity, then the charge/discharge control unit of charging pile is by touching screen display
Show cut-off discharge battery carrying capacity >=present battery carrying capacity, and point out user to discharge to terminate；If cut-off discharge battery carrying capacity
≤ present battery carrying capacity, then charge/discharge control unit D.C. contactor in charge/discharge loop sends power on signal, directly
Stream catalyst Guan Bi, discharges, and measures discharge electricity amount by the metering electric energy meter being series between electric automobile and electrical network,
By charge/discharge control unit, charge information is sent to touch screen, shows discharge electricity amount in real time, and by BMS cell tube
Reason system detects the carrying capacity of Vehicular battery in real time, and is shown the carrying capacity of Vehicular battery in real time by touch screen, treats battery charge
When amount reaches user's setting value, electric discharge completes；
(4) touch screen display discharge information, and the electric discharge price meter that charge/discharge control unit sends according to gateway control cabinet
Calculating and show user's income, and avail information and discharge electricity amount are sent to touch screen, touch screen show, discharge process is tied
Bundle.
In-situ compensation device of the present invention is made up of the Capacitor banks of current-limiting reactor.
380V utility network of the present invention requires: according to " quality of power supply-utility network harmonic wave " GB/T 14549-
The requirement of 93 and " quality of power supply-supply voltage deviation " GB/T 12325-2008, when the voltage deviation of 380V electrical network is nominal electricity
Pressure ± 7% time, the voltage total harmonic distortion factor of nominal voltage 380V be less than 5%, odd harmonic voltage containing ratio is 4%,
When even harmonic voltages containing ratio is 2%, meeting utility network requirement, electric automobile can be accessed by electrical network.
Additionally, emergency occurs in system, when needing quick closedown charging device, charging pile sets charge/discharge
Urgent scram button, cuts off the D.C. contactor in charge/discharge loop from hardware, completes emergency shutdown operation.At this moment at device
In the safest state, internal circuit is cut off, internal fault can be stoped to expand further, it is ensured that equipment safety.
The calculating of described given charge capacity: given charge capacity=user sets the amount of money/electricity price of currently charging；
The calculating of described unnecessary given electricity: unnecessary given electricity=given charge capacity-Vehicular battery loss electricity
Amount-；
The calculating of described remaining sum: remaining sum=unnecessary given electricity/electricity price of currently charging；
The calculating that described user is benefited: user's income=discharge electricity amount × electric discharge price；
The described component in gateway control cabinet includes: the microprocessor with STM32F107 chip as core, surveys with electric energy
Amount chip ADE7880 is the real-time detector unit of electrical network of core, is made up of with SRZD type secondary capacitor SRCKSG type reactor
In-situ compensation device, the human-computer interaction interface being made up of D-8203B serial ports keyboard and CQPICTDE0000-A touch screen, communication
Unit.The real-time detector unit of described electrical network is for core to obtain the electric parameters of electrical network with electric energy measure chip ADE7880, its
Include: active power, reactive power, voltage effective value and frequency values, current value and harmonic voltage aberration rate.Described micro-place
Reason device, with STM32F107 chip as core, receives the operation of power networks environmental information of electrical network real-time detector unit detection, and receives electricity
The tou power price information that net control centre formulates, it is as follows that tou power price sets height: load valley period electricity price is < time in the middle of load
Section electricity price < load peak period electricity price, and electricity price information is sent to the charge/discharge control unit of charging pile；According to " electric energy matter
Amount-utility network harmonic wave " GB/T 14549-93 and " quality of power supply-supply voltage deviation " GB/T 12325-2008 be public to 380V
With the requirement of electrical network, it is judged that operation of power networks environment accesses if appropriate for electric automobile；Microprocessor receives grid dispatching center and refers to
Order, sends electric discharge instruction and electric discharge pricing information for each charging pile.Described communication unit uses CAN to realize gateway control
Two-way communication between cabinet and grid dispatching center and each charging pile.Wherein, the real-time detector unit of electrical network, microprocessor, people
Machine interactive interface, communication unit, in-situ compensation device are all connected with microprocessor, and realize two-way communication.Described electrical network is adjusted
Degree center instruction is the peak load shifting participating in electrical network, and grid dispatching center is sent out to charging pile by the microprocessor of gateway control cabinet
Veer away electricity instruction and electric discharge pricing information.Described in-situ compensation device, mainly has reactive-load compensation and harmonic wave abatement functions
Device, use the in-situ compensation device that is made up of SRCKSG type reactor with SRZD type secondary capacitor.Described man-machine friendship
Interface receives tou power price information and the operation conditions of each charging pile that microprocessor sends mutually, for user and management personnel
Check.
Described charging pile includes: the charge/discharge control unit with STM32F107 chip as core, BMS-G type cell tube
Reason system, the coin recognition unit of Hitachi's HT-2845V type, by Omron V2CF type IC-card card reader, D-8203B type serial ports key
Dish and the human-computer interaction interface of CQPICTDE0000-A type touch screen composition, PZ96-DE/C type direct current energy meter, Epson M-
U110 II 76MM type printer, two way convertor, voltage/current signals modulate circuit, drive circuit, communication unit.Described
Charge/discharge control unit is the core component of charging pile, and it is whole that it is responsible for controlling charge/discharge with STM32F107 chip for core
Process.Described communication unit be charging pile charge/discharge control unit by CAN be connected with other equipment realize two-way
Communication, including: it is connected with gateway control cabinet, facilitates the management of centralized charging pile；It is connected with battery management system, detects vehicle
The information of battery；It is connected with touch screen, receives user to set information, and more fresh information is fed back to touch screen show；With
Card reader is connected, and receives the information of user's IC-card, and by user's more fresh information write IC-card.It addition, and voltage and current signal
Sampling modulate circuit one-way communication, receives voltage and current signal, it is simple to be sent to drive circuit by PWM port output signal,
Driving signal is provided for two way convertor through drive circuit；With metering electric energy meter one-way communication, receive charge/discharge metering signal；
With coin recognition unit one-way communication, it is used for receiving user and charges amount information；With serial ports keyboard one-way communication, it is used for receiving use
The family information by keyboard to set up.Described voltage/current signals sampling modulate circuit gathers voltage/current signals, by signal
Being transferred to charge/discharge control unit, the driving for unsteady flow part controls.Described direct current energy meter is coupled to electric vehicle battery
And between electrical network, charge and discharge process measures charge/discharge amount, and metrical information is transmitted in charge/discharge control unit.Described
BMS-G type battery management system facilitate user to check and dispatching of power netwoks for the information obtaining electric vehicle battery.Described
The information of Vehicular battery be carrying capacity, temperature；Described user to set information is the charging amount of money, Vehicular battery cut-off electric discharge lotus
Electricity；Described user is set for the charging amount of money by the information of serial ports keyboard to set up, Vehicular battery ends electric discharge carrying capacity,
" confirm " signal.
Compared with prior art, the method have the advantages that
1, Bidirectional charging-discharging function is realized.Contribute to the two-way interaction of electric automobile and electrical network；
2, more intelligent, hommization.User can arbitrarily select the means of payment: swipes the card and pays and pay in cash.Charge and discharge
After electricity completes, the remaining amount of money and electric discharge income are write in user's IC-card for charging；Provide the user electric discharge income, energy
User is promoted energetically electric automobile to be participated in dispatching of power netwoks；
3, use tou power price meterage, regulate and control the time of user's discharge and recharge to a certain extent, be conducive to electronic
Automobile is actively engaged in grid responsive；
4, the quality of power supply of electrical network is improved.Local compensation in gateway control cabinet and harmonic treating apparatus, charging pile itself
Circuit structure and control method, it is possible to suppression harmonic wave, compensating reactive power, improve the quality of power supply of electrical network, carry for charging pile
Supply good operation of power networks environment, to a certain extent the battery of electric automobile is served protective effect.
Accompanying drawing explanation
Fig. 1 is the circuit structure block diagram of the gateway control cabinet controller of the present invention；
Fig. 2 is the circuit structure block diagram of the charging pile controller of the present invention；
Fig. 3 is control method overall flow block diagram of the present invention；
Fig. 4 is the charging module FB(flow block) of the present invention；
Fig. 5 is the discharge module FB(flow block) of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing of the present invention, the enforcement to control method illustrates:
Fig. 1 is the circuit structure block diagram of gateway control cabinet controller, and gateway control cabinet is mainly used in managing multiple charging pile,
Its component includes: the microprocessor with STM32F107 chip as core, the electrical network with electric energy measure chip ADE7880 as core
Detector unit, the in-situ compensation device being made up of with SRZD type secondary capacitor SRCKSG type reactor, gone here and there by D-8203B in real time
Mouthful keyboard and the human-computer interaction interface of CQPICTDE0000-A touch screen composition, communication unit, the real-time detector unit of electrical network be with
Electric energy measure chip ADE7880 be core to obtain the electric parameters of electrical network, including: active power, reactive power, voltage have
Valid value and frequency values, current value and harmonic voltage aberration rate, microprocessor, with STM32F107 chip as core, receives electrical network real
Time detector unit detection electric network information, it is thus achieved that typical day load curve, formulate tou power price, electricity price set height as follows: bear
Lotus low-valley interval electricity price < load intermediate period electricity price < load peak period electricity price, and true according to electrical network detection current loads information
This period electricity price information fixed, sends the charge/discharge control unit of charging pile to by electricity price information；According to " the quality of power supply-public power
Net harmonic wave " GB/T 14549-93 and " quality of power supply-supply voltage deviation " GB/T 12325-2008 be to 380V utility network
Requirement, it is judged that operation of power networks environment accesses if appropriate for electric automobile；Reception grid dispatching center instructs, and sends for each charging pile
Electric discharge instruction and electric discharge pricing information, grid dispatching center instruction (participates in power grid frequency modulation, spinning reserve, peak load shifting and new energy
The harmonizing in source) for participating in the peak load shifting of electrical network, send electric discharge instruction and electric discharge valency by gateway control cabinet to charging pile
Lattice information, in-situ compensation device mainly has reactive-load compensation and the device of harmonic wave abatement functions, uses by SRCKSG type reactance
The in-situ compensation device that device forms with SRZD type secondary capacitor, human-computer interaction interface receives the tou power price that microprocessor sends
Information and the operation conditions of each charging pile, check for user and management personnel.Communication unit uses CAN to realize gateway
Two-way communication between switch board and grid dispatching center and each charging pile, the additionally real-time detector unit of electrical network, micro-process
Device, human-computer interaction interface, communication unit, in-situ compensation device are all connected with microprocessor, and realize two-way communication.Gateway control
The real-time detector unit of electrical network of cabinet detects operation of power networks environment in real time, according to " quality of power supply-utility network harmonic wave " GB/T
14549-93 and " quality of power supply-supply voltage deviation " GB/T 12325-2008 is to 380V utility network requirement, it is judged that electronic vapour
Whether car can be accessed by electrical network, it is judged that operation of power networks environment accesses if appropriate for electric automobile, if operation of power networks environment reaches 380V
Utility network requirement, then charging pile is properly functioning, otherwise, is compensated by the in-situ compensation device in gateway control cabinet, and
Constantly detecting operation of power networks environment, gateway control cabinet detects operation of power networks environment in real time, by by SRCKSG type reactance
Device carries out reactive power in-situ compensation and harmonic wave control with the in-situ compensation device of SRZD type secondary capacitor composition, improves electric energy
Quality, improves operation of power networks environment, and electric vehicle battery plays certain protective effect, extends battery, gateway
The microprocessor of switch board receives the tou power price that grid dispatching center is formulated, and tou power price information is transferred to gateway control
The man machine interface of cabinet is checked for user and management personnel；And electricity price information is transferred to the charge/discharge control unit use of charging pile
In calculating user's charge capacity；The electric discharge that microprocessor receives from grid dispatching center instructs and electric discharge pricing information, and passes
Give the charge/discharge control unit of charging pile, realize the regulation and control to user's charging interval to a certain extent, contribute to electronic vapour
Car is actively engaged in the response of electrical network.
Fig. 2 is the circuit structure block diagram of charging pile controller.Charging pile includes: filling with STM32F107 chip as core/
Control of discharge unit, BMS-G type battery management system, the coin recognition unit of Hitachi's HT-2845V type, by Omron V2CF type
IC-card card reader, D-8203B type serial ports keyboard and the human-computer interaction interface of CQPICTDE0000-A type touch screen composition, PZ96-
DE/C type direct current energy meter, Epson M-U110 II 76MM type printer, two way convertor, voltage/current signals modulate circuit,
Drive circuit, communication unit.Charge/discharge control unit is the core component of charging pile, and it is used with STM32F107 chip for core
In controlling the whole process of charge/discharge.Communication unit is that the charge/discharge control unit of charging pile is by CAN and other equipment
It is connected and realizes two-way communication, including: it is connected with gateway control cabinet, facilitates the management of centralized charging pile；With battery management system
It is connected, the information of detection Vehicular battery；It is connected with touch screen, receives user to set information, and more fresh information is fed back to touch
Screen shows；It is connected with card reader, receives the information of user's IC-card, and by user's more fresh information write IC-card.It addition, with
Voltage and current signal sampling modulate circuit one-way communication, receives voltage and current signal, it is simple to sent by PWM port output signal
To drive circuit, Reversible PWM inverter, protection circuit and the two-way DC/DC current transformer in drive circuit is two way convertor
There is provided and drive signal；With metering electric energy meter one-way communication, receive charge/discharge metering signal；With coin recognition unit one-way communication,
Charge amount information for receiving user；With serial ports keyboard one-way communication, it is used for receiving user's information by keyboard to set up.Electricity
Pressure/current signal sampling modulate circuit gathers voltage/current signals, transmits a signal to charge/discharge control unit, for unsteady flow
The driving of part controls.Direct current energy meter is coupled between electric vehicle battery and electrical network, measures charge/discharge in charge and discharge process
Amount, and metrical information is transmitted in charge/discharge control unit.BMS-G type battery management system is used for obtaining electric vehicle battery
Information facilitate user to check and dispatching of power netwoks.The information of described Vehicular battery is carrying capacity, temperature；Described user sets
Determine information and end, for the charging amount of money, Vehicular battery, the carrying capacity that discharges；Described user passes through the information of serial ports keyboard to set up for filling
The electricity amount of money sets, Vehicular battery cut-off electric discharge carrying capacity, " confirmation " signal.
The charge/discharge control method of the present embodiment bidirectional electric automobile Intelligent charging spot, comprises the following steps:
(1), between multiple centralized charging piles, a gateway control cabinet is set up, real-time by the electrical network in gateway control cabinet
Detector unit detects operation of power networks environment in real time, according to " quality of power supply-utility network harmonic wave " GB/T 14549-93 and " electric energy
Quality-supply voltage deviation " the GB/T 12325-2008 requirement to 380V utility network, it is judged that whether operation of power networks environment fits
Conjunction electric automobile accesses, if operation of power networks environment reaches requirement, then charging pile is properly functioning, otherwise, by gateway control cabinet
In-situ compensation device compensate, and operation of power networks environment is constantly detected；
(2), under charging pile normal operation, after charging gun is docked by user with Vehicular charging socket, at charging pile
On complete IC-card and swipe the card certification, the card reader of charging pile obtains user profile, and the BMS battery management system on charging pile obtains simultaneously
Take the information of Vehicular battery, and the information of user profile and Vehicular battery is transferred to the charge/discharge control unit of charging pile also
Shown by touch screen；
(3), each electric automobile all wear an IC-card, this card corresponding to the number-plate number of electric automobile, energy after swiping the card
Show the traffic offence note in violation of rules and regulations of car owner's identity information, number-plate number information, Stored Value information and electric automobile on the touchscreen
Record, charge/discharge control unit receives the above-mentioned information on IC-card, and whether detection car owner has traffic offence to disobey record, if having, fill/
Control of discharge unit sends signal to touch screen, and display terminates service；If no, prompting user is at charging module and discharge module
In carry out function selecting；
(4) if user selects charging module, then it is charged according to charge control method；
(5) if user selects discharge module, then carry out discharging and obtaining income according to discharge control method；
(6), card reader receives user's more fresh information that charge/discharge control unit sends, and more fresh information is write IC-card
In, print bill；
(7), prompting user card punching terminates.
Fig. 3 is that charging pile charge/discharge controls overall flow figure, and the real-time detector unit of electrical network of gateway control cabinet detects in real time
Operation of power networks environment, if the voltage of electrical network and harmonic wave meet utility network requirement, then operation of power networks environment is good, to charging pile
Charge/discharge control unit sends properly functioning signal, and charging pile keeps normal operating condition.If the voltage of electrical network and harmonic wave are not
Meet utility network requirement, then the in-situ compensation device in gateway control cabinet carries out reactive power compensation on the spot and harmonic wave control, in real time
Detection operation of power networks environment, final guarantee charging pile is properly functioning.Charging gun is docked by user with Vehicular charging socket, swipe the card into
Enter original state, prompting input account password.User is by serial ports keyboard or touch screen input password, if code error, prompting
Re-enter.When Password Input number of times is more than three times, charge/discharge control unit sends signal to touch screen, and display terminates clothes
Business.If account password is correct, IC-card card reader reads user profile, and BMS battery management system reads the information of Vehicular battery, and
The two is transferred to charge/discharge control unit, and an IC-card all worn by each electric automobile, and this card is corresponding to the car of electric automobile
Trade mark code, can show car owner's identity information, number-plate number information, Stored Value information and electric automobile on the touchscreen after swiping the card
Traffic offence record in violation of rules and regulations, charge/discharge control unit receives the above-mentioned information of IC-card, and whether detection car owner has traffic offence to disobey note
Record, if having, charge/discharge control unit sends signal to touch screen, and display terminates service；If no, then prompting user carries out merit
Can select: charging module and discharge module.After discharge and recharge completes, by card reader, more fresh information is write in IC-card, and
By bill information transmission to printer, print bill.After swiping the card, this time service terminates.When described bill information includes charging
Between, the original electricity of Vehicular battery, charge/discharge electricity, charge/discharge unit price, spending amount, remaining sum or electric discharge income.
Fig. 4 is charging module FB(flow block), enforcement step:
(1) user selects charging module, enters charging and initializes, is detected by the BMS battery management system on charging pile
The power shortage electricity of Vehicular battery, and show on the touch screen of charging pile；
(2) select the means of payment: swipe the card and pay and pay in cash, select payment then brush in the card-brushing groove of charging pile of swiping the card
Card, the input amount of money also determines, selects to pay in cash, add coin in adding of charging pile and determine payment at coin, enters coin and knows
Other system is identified and determines；
(3) charging modes is selected: charge immediately, recommend charging or reservation charging；If selecting to charge immediately, then charging pile
It is immediately performed charging with current charging price；If selecting to recommend charging, selecting this, electric automobile is accessed electrical network, gateway control
Cabinet processed detects when network load low-valley interval and the electrical network quality of power supply reach requirement, charging pile just with user set the amount of money and
Spot Price calculates charge capacity, for charging electric vehicle, if selecting reservation charging, first must input subscription time, by electronic
Automobile accesses electrical network, and the final electricity price information by the reservation period calculates charge capacity, and subscription time arrives and performs charging；
(4), after having selected, the charge/discharge control unit of charging pile calculates according to the given amount of money and tou power price information
Given charge capacity；
(5) the charge/discharge control unit of charging pile relatively gives charge capacity and Vehicular battery power shortage electricity size, if giving
Determine charge capacity≤Vehicular battery power shortage electricity, then charge/discharge control unit D.C. contactor in charge/discharge loop sends
Power on signal, D.C. contactor closes, starts to charge up, and enters charging process, in charging process, by being series at Vehicular battery
And the metering electric energy meter measurement charge capacity between electrical network, charge/discharge control unit charge information is sent to touch screen, uses
Charge capacity is shown in real time, when charge/discharge control unit detects actual charge capacity equal to given charge capacity, fill/
Control of discharge unit D.C. contactor in charge/discharge loop sends power-off signal, and D.C. contactor is opened, charging complete；
If given charge capacity >=Vehicular battery power shortage electricity, then charge/discharge control unit calculates unnecessary given electricity, and with currently
Electricity price is converted into remaining sum, in typing user more fresh information, then by straight in charge/discharge loop of charge/discharge control unit
Stream catalyst sends power on signal, and D.C. contactor closes, and is charged, constantly detects battery by BMS battery management system
Information about power, when battery charging state show reach 100% time, charge/discharge control unit direct current in charge/discharge loop
Catalyst sends power-off signal, and D.C. contactor is opened, charging complete；
(6) charge information and remaining sum are sent to touch screen by the charge/discharge control unit of charging pile, by touching screen display
Illustrating charge information and remaining sum, charging process terminates.
Fig. 5 is discharge module FB(flow block), enforcement step:
(1) user selects discharge module, enters electric discharge and initializes, and is detected by the BMS battery management system of charging pile and works as
Front battery information, user arranges cut-off discharge battery carrying capacity according to present battery information；
(2) the operation of power networks environment of the electrical network of gateway control cabinet real-time detector unit detection charging pile, treats load boom period
Time gateway control cabinet microprocessor receive grid dispatching center send electric discharge instruction, by electric discharge instruction be sent to charging pile
Charge/discharge control unit；
(3) the charge/discharge control unit of charging pile compares the big of cut-off discharge battery carrying capacity and present battery carrying capacity
Little, if cut-off discharge battery carrying capacity >=present battery carrying capacity, then the charge/discharge control unit of charging pile is by touching screen display
Show cut-off discharge battery carrying capacity >=present battery carrying capacity, and point out user to discharge to terminate；If cut-off discharge battery carrying capacity
≤ present battery carrying capacity, then charge/discharge control unit D.C. contactor in charge/discharge loop sends power on signal, directly
Stream catalyst Guan Bi, discharges, and measures discharge electricity amount by the metering electric energy meter being series between electric automobile and electrical network,
By charge/discharge control unit, charge information is sent to touch screen, shows discharge electricity amount in real time, and by BMS cell tube
Reason system detects the carrying capacity of Vehicular battery in real time, and is shown the carrying capacity of Vehicular battery in real time by touch screen, treats battery charge
When amount reaches user's setting value, electric discharge completes；
(4) touch screen display discharge information, and the electric discharge price meter that charge/discharge control unit sends according to gateway control cabinet
Calculating and show user's income, and avail information and discharge electricity amount are sent to touch screen, touch screen show, discharge process is tied
Bundle.
Claims (8)
1. a charge/discharge control method for bidirectional electric automobile Intelligent charging spot, is characterized in that comprising the following steps:
(1), between multiple centralized charging piles, set up a gateway control cabinet, the electrical network in gateway control cabinet detect in real time
Unit detects operation of power networks environment in real time, according to " quality of power supply-utility network harmonic wave " GB/T 14549-93 and " quality of power supply-
Supply voltage deviation " the GB/T 12325-2008 requirement to 380V utility network, it is judged that operation of power networks environment is if appropriate for electronic
Automobile access, if operation of power networks environment reaches requirement, then charging pile is properly functioning, otherwise, by gateway control cabinet on the spot
Compensation device compensates, and constantly detects operation of power networks environment；
(2), under charging pile normal operation, after charging gun is docked by user with Vehicular charging socket, complete on charging pile
Becoming IC-card to swipe the card certification, the card reader of charging pile obtains user profile, and the BMS battery management system on charging pile obtains car simultaneously
The information of battery, and the information of user profile and Vehicular battery is transferred to the charge/discharge control unit of charging pile and passes through
Touch screen shows；
(3), each electric automobile all wear an IC-card, this card corresponding to the number-plate number of electric automobile, after swiping the card can touch
Touch the traffic offence record in violation of rules and regulations of screen display car owner's identity information, number-plate number information, Stored Value information and electric automobile,
Charge/discharge control unit receives the above-mentioned information on IC-card, and whether detection car owner has traffic offence to disobey record, if having, and charge/discharge
Control unit sends signal to touch screen, and display terminates service；If no, prompting user enters in charging module and discharge module
Row function selecting；
(4) if user selects charging module, then it is charged according to charge control method；
(5) if user selects discharge module, then carry out discharging and obtaining income according to discharge control method；
(6), card reader receives user's more fresh information that charge/discharge control unit sends, and by more fresh information write IC-card, beats
Print bill；
(7), prompting user card punching terminates.
The charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot the most according to claim 1, is characterized in that
Described gateway control cabinet is made up of microprocessor, the real-time detector unit of electrical network, in-situ compensation device, human-computer interaction interface, micro-
Processor and grid dispatching center two-way communication, electricity during for receiving discharge and recharge instruction and charger assembled by several branch that grid dispatching center sends
Valency, electric discharge electricity price information, it is achieved the grid dispatching center management to multiple centralized charging piles；Microprocessor is examined in real time with electrical network
Survey unit two-way communication, for detection operation of power networks environment in real time, and judge whether operation of power networks environment meets 380kV public power
Net requirement；Microprocessor and the charge/discharge control unit two-way communication of charging pile, if operation of power networks environment meets requirement, then fill
Electricity stake is properly functioning and receives discharge and recharge instruction and the electricity price information that microprocessor sends, and the duty feedback of each charging pile
To microprocessor；Microprocessor and in-situ compensation device two-way communication, if operation of power networks environment is unsatisfactory for requirement, then send startup
Instruct to in-situ compensation device, for compensating power and improvement harmonic wave；Microprocessor and human-computer interaction interface two-way communication,
For showing that the duty of charging tou power price and electric discharge electricity price information and each charging pile is checked for user and management personnel.
The charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot the most according to claim 1, is characterized in that
Described charging pile by charge/discharge control unit, BMS battery management system, coin recognition unit, card reader, serial ports keyboard, touch
Touching screen, metering electric energy meter, printer, two way convertor, voltage/current signals sampling modulate circuit, drive circuit forms, fill/
Control of discharge unit and the microprocessor two-way communication of gateway control cabinet, be used for managing multiple charging pile concentratedly；Charge/discharge controls
Unit and BMS battery management system two-way communication, for detecting the information of Vehicular battery；Charge/discharge control unit and touch screen
Two-way communication, is used for receiving user to set information, and user's more fresh information is fed back to touch screen；Charge/discharge control unit with
Card reader is two-way to be connected, for receiving the information of user's IC-card, and by user's more fresh information write IC-card；Charge/discharge controls
Unit and voltage and current signal sampling modulate circuit one-way communication, be used for receiving voltage and current signal；Charge/discharge control unit is led to
Crossing PWM port output signal and be sent to drive circuit, drive circuit provides for two way convertor and drives signal；Charge/discharge controls
Unit and metering electric energy meter one-way communication, be used for receiving charge/discharge metering signal；Charge/discharge control unit and coin identification list
Unit's one-way communication, is used for receiving user and charges amount information；Charge/discharge control unit and serial ports keyboard one-way communication, be used for connecing
Receive user's information by keyboard to set up.
The charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot the most according to claim 1, is characterized in that
Described gateway control cabinet receives tou power price information and the electric discharge electricity price information that grid dispatching center is formulated, and by gateway control
The touch screen display of cabinet processed is checked for user and management personnel；The charge/discharge that electricity price information is also sent to charging pile controls single
Unit, the step after being used for.
The charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot the most according to claim 1, is characterized in that
The charge control method of described charging module comprises the following steps:
(1) user selects charging module, enters charging and initializes, detects vehicle by the BMS battery management system on charging pile
The power shortage electricity of battery, and show on the touch screen of charging pile；
(2) select the means of payment: swipe the card and pay and pay in cash, select to swipe the card to pay and then swipe the card in the card-brushing groove of charging pile,
The input amount of money also determines, selects to pay in cash, adds coin in adding of charging pile and determine payment at coin, enters coin identification system
System is identified and determines；
(3) charging modes is selected: charge immediately, recommend charging or reservation charging；If selecting to charge immediately, then charging pile is to work as
Front charging price is immediately performed charging；If selecting to recommend charging, selecting this, electric automobile is accessed electrical network, gateway control cabinet
Detecting when network load low-valley interval and the electrical network quality of power supply reach requirement, charging pile just sets the amount of money and in real time with user
Electricity price calculates charge capacity, for charging electric vehicle, if selecting reservation charging, first must input subscription time, by electric automobile
Accessing electrical network, the final electricity price information by the reservation period calculates charge capacity, and subscription time arrives and performs charging；
(4), after having selected, the charge/discharge control unit of charging pile calculates given according to the given amount of money and tou power price information
Charge capacity；
(5) the charge/discharge control unit of charging pile relatively gives charge capacity and Vehicular battery power shortage electricity size, fills if given
Power consumption≤Vehicular battery power shortage electricity, then charge/discharge control unit D.C. contactor in charge/discharge loop sends energising
Signal, D.C. contactor closes, starts to charge up, and enters charging process, in charging process, by being series at Vehicular battery and electricity
Metering electric energy meter between net measures charge capacity, charge/discharge control unit charge information is sent to touch screen, for real
Time show charge capacity, when charge/discharge control unit detects actual charge capacity equal to given charge capacity, charge/discharge
Control unit D.C. contactor in charge/discharge loop sends power-off signal, and D.C. contactor is opened, charging complete；If giving
Determine charge capacity >=Vehicular battery power shortage electricity, then charge/discharge control unit calculates unnecessary given electricity, and with current electricity prices
It is converted into remaining sum, in typing user more fresh information, then is connect by charge/discharge control unit direct current in charge/discharge loop
Tentaculum sends power on signal, and D.C. contactor closes, and is charged, is constantly detected the electricity of battery by BMS battery management system
Amount information, when battery charging state show reach 100% time, charge/discharge control unit in charge/discharge loop direct current contact
Device sends power-off signal, and D.C. contactor is opened, charging complete；
(6) charge information and remaining sum are sent to touch screen by the charge/discharge control unit of charging pile, touch screen demonstrate
Charge information and remaining sum, charging process terminates.
The charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot the most according to claim 1, is characterized in that
The discharge control method of described discharge module comprises the following steps:
(1) user selects discharge module, enters electric discharge and initializes, and detects current electricity by the BMS battery management system of charging pile
Pond information, user arranges cut-off discharge battery carrying capacity according to present battery information；
(2) the operation of power networks environment of the electrical network of gateway control cabinet real-time detector unit detection charging pile, net when load boom period
The microprocessor closing switch board receives the electric discharge instruction that grid dispatching center sends, electric discharge instruction is sent to the filling of charging pile/
Control of discharge unit；
(3) the charge/discharge control unit of charging pile compares the size of cut-off discharge battery carrying capacity and present battery carrying capacity, if
Cut-off discharge battery carrying capacity >=present battery carrying capacity, then the charge/discharge control unit of charging pile show section by touch screen
Only discharge battery carrying capacity >=present battery carrying capacity, and point out user to discharge to terminate；If cut-off discharge battery carrying capacity≤when
Front battery charge amount, then charge/discharge control unit D.C. contactor in charge/discharge loop sends power on signal, and direct current connects
Tentaculum closes, and discharges, and measures discharge electricity amount by the metering electric energy meter being series between electric automobile and electrical network, by
Charge information is sent to touch screen by charge/discharge control unit, shows discharge electricity amount in real time, and by BMS battery management
System detects the carrying capacity of Vehicular battery in real time, and is shown the carrying capacity of Vehicular battery in real time by touch screen, treats battery charge amount
When reaching user's setting value, electric discharge completes；
(4) touch screen display discharge information, and the electric discharge calculation of price that charge/discharge control unit sends according to gateway control cabinet is also
Display user's income, and avail information and discharge electricity amount are sent to touch screen, touch screen showing, discharge process terminates.
The charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot the most according to claim 1, is characterized in that
Described in-situ compensation device is made up of the Capacitor banks of current-limiting reactor.
The charge/discharge control method of a kind of bidirectional electric automobile Intelligent charging spot the most according to claim 1, is characterized in that
Described 380V utility network requires: according to " quality of power supply-utility network harmonic wave " GB/T 14549-93 and " quality of power supply-
Supply voltage deviation " requirement of GB/T 12325-2008, when the voltage deviation of 380V electrical network be nominal voltage ± 7% time, mark
Claiming the voltage total harmonic distortion factor of voltage 380V less than 5%, odd harmonic voltage containing ratio is 4%, and even harmonic voltages contains
When to have rate be 2%, meeting utility network requirement, electric automobile can be accessed by electrical network.
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