CN106183878B - A kind of alternating-current charging pile improving three-phase load active power - Google Patents
A kind of alternating-current charging pile improving three-phase load active power Download PDFInfo
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- CN106183878B CN106183878B CN201610785476.XA CN201610785476A CN106183878B CN 106183878 B CN106183878 B CN 106183878B CN 201610785476 A CN201610785476 A CN 201610785476A CN 106183878 B CN106183878 B CN 106183878B
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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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of alternating-current charging pile improving three-phase load active power, including main MCU unit, and the main MCU unit is connected with card reading unit, three-phase charge circuit unit, input unit, display unit, metering units, electromagnetism warehouse receipt member, voice guide unit, standby power unit, lightning protection electric leakage unit, communication unit, inclination angle detection unit by the distribution of total data line, the three-phase charge circuit unit accesses three phase network, and the three phase network is connected with reactive power compensator.Compared with prior art, standby power unit of the invention effectively can be such that charging pile is worked normally, and maintain the integrality of charging, simultaneously, when sending a telegram here again, cycle charging can be carried out to standby power unit, to extend standby power unit and on-vehicle battery service life；And the reactive power compensator used, so that power grid is reached equilibrium state in time, greatly reduce the consumption of reactive power, and reduce the high cost of conventional compensation equipment, also improves charge efficiency and utilization rate of electrical.
Description
Technical field
The present invention relates to alternating-current charging pile three-phase electronic compensating equipment technical field, in particular to a kind of raising three-phase load has
The alternating-current charging pile of function power.
Background technique
The machine that automobile is once known as changing the world also produces energy while bringing quick mode of transportation to us
A series of problems, such as source safety, environmental pollution and global warming.Currently, energy-saving and emission-reduction have become the head of Global Auto industry
Task is wanted, the strategic direction that new-energy automobile has become Global Auto industry is developed, new-energy automobile is expected to become to be changed again
The machine in the world.
Electric car is represented as the prominent of new energy development, is had become and is replaced traditional power automobile, leads garage
The important development direction of industry new era.Instantly, world car industry is just actively throwing oneself into exploitation and the extension process of electric car
In, national governments and enterprise have put into a large amount of human and material resources and financial resources in electric car field.China is in three vertical three horizontal research and development cloth
Under the policy guide of office, electric car career development is also very rapid.
Battery and charging technique are the bottlenecks of electric vehicle development, and business development and its operation way are in some sense
Determine electric car popularization degree and commercialized space.Meanwhile charging station is also the first sign in new-energy automobile epoch.?
Under new energy policy support, it is contemplated that the average annual new-energy automobile demand in the China 2011-2015 is up to 350,000, needs within 2015
The amount of asking will be up to 970,000.As the infrastructure of new-energy automobile, electric automobile charging station is expected to prior to new-energy automobile market
Outburst.
Alternating-current charging pile provides energy recharge as the operation of electric car, is important necessary to Development of Electric Vehicles match
Cover infrastructure.
Alternating-current charging pile provides ac charging power supply, alternating-current charging pile one to the electric passenger vehicle with Vehicular charger
As construction in parking lot or roadside, have that power is smaller, occupied area is little, construction is easy, layout it is flexible, disposably put into it is small
The features such as.Although it is very simple to build single alternating-current charging pile, alternating-current charging pile will form network, and to be just able to satisfy electric car general
And needs.
But entire electrically-charging equipment industry is also at starting and technology stage of fumbling, and alternating-current charging pile on the market is from outer at present
It sees structure, electrical design, control mechanism and all deposits big very big room for improvement.The especially three-phase of three-phase charge circuit unit connection
Power grid, existing charging pile is nearly all single-phase load, and the electricity consumption of user has asynchronism, this makes distribution transforming system easily
There is the situation of three-phase imbalance, and degree of unbalancedness severely exceeds, degree of unbalancedness is excessively high to reach 34%, while making reactive power
It is high, cause serious power wastage.
Commonly using switched capacitor, there is compensation step, easily go out in existing charging pile low-voltage distribution system
Existing overfill or underfill, compensation effect are poor.
Summary of the invention
For the deficiencies in the prior art, the purpose of the present invention is to provide a kind of raising three-phase load active power
Alternating-current charging pile, the imbalance that the distribution end that can be connected to existing charging pile occurs compensates, and makes each phase current
Or voltage basically reaches equilibrium state, so that its reactive power is substantially reduced, improves charge efficiency and utilization rate of electrical.
The technical scheme of the present invention is realized as follows:
A kind of alternating-current charging pile improving three-phase load active power, including main MCU unit, and the main MCU unit passes through
The distribution of total data line is connected with card reading unit, three-phase charge circuit unit, input unit, display unit, metering units, electromagnetism storehouse
Unit, voice guide unit, standby power unit, lightning protection electric leakage unit, communication unit, inclination angle detection unit, the card reading list
Member, charge circuit unit, input unit, display unit, metering units, electromagnetism warehouse receipt member, voice guide unit, backup power source list
Member, lightning protection electric leakage unit, communication unit, inclination angle detection unit are connect with main MCU unit respectively, and the display unit includes behaviour
Make display module and equipment state display module, the three-phase charge circuit unit accesses three phase network, and the three phase network connects
It is connected to reactive power compensator.
Preferably, the reactive power compensator includes
Controller；
Signal picker is electrically connected to the three-phase bus of power grid, detects the voltage/current signals of three-phase bus, and communicates
It is connected to the controller；
IGBT driving, is electrically connected at the controller and is driven by it；
Two concatenated chain links, each chain link include more than two inverter circuits in parallel and end and each inversion electricity
The DC capacitor of road parallel connection；
Three-phase bus passes through the series circuit that a connection line is connected between two chain links respectively, includes in each phase line
There are concatenated reactor and breaker.
Preferably, reactive power compensator further includes having three arresters, is electrically connected in each breaker and each institute
State the route between reactor.
Preferably, the controller, IGBT driving, each reactor and each chain link are packaged in one
In SPC cabinet body, a SPC module is formed.
Preferably, which is characterized in that the SPC cabinet body is provided with the more a connecting terminals of XA~XN, with electric with each phase bus
Property connection.
Preferably, the signal picker by way of wirelessly or non-wirelessly communication connection in the controller.
Preferably, the standby power unit includes charging circuit subelement, discharge circuit subelement and 12V/5A
Lead-acid battery.
Preferably, communication unit includes uplink communication unit and downgoing communication unit, and the alternating-current charging pile passes through uplink
Communication unit is communicated with background monitoring system, and the alternating-current charging pile is carried out by downgoing communication unit and Vehicular charger
Communication.
Preferably, the uplink communication unit includes one of Ethernet, GPRS/CDMA, RS232, infrared or more
Kind.
Preferably, the downgoing communication unit includes pwm signal bus, CAN bus, one kind or more between RS485
Kind.
Compared with prior art, the invention has the following beneficial effects:
The alternating-current charging pile of raising three-phase load active power of the invention, standby power unit can effectively make charging pile
It carries out normal work 24 hours, maintains the integrality of charging, reduce because the charging caused that has a power failure is complained, meanwhile, when next again
When electric, cycle charging can be carried out to standby power unit, to extend standby power unit and on-vehicle battery service life；In addition it is also solved
Determined original metal keyboard waterproof, the problem of being connected with charging pile complete machine, charging pile human-computer interaction waterproof problem and keyboard makes
The problem of with the service life；And the reactive power compensator used, so that power grid is reached equilibrium state in time, greatly reduces reactive power
Consumption, and the high cost of conventional compensation equipment is reduced, while improving charge efficiency and utilization rate of electrical.
Detailed description of the invention
Fig. 1 is the circuit block diagram for the alternating-current charging pile that the present invention improves three-phase load active power；
Fig. 2 is the connection schematic diagram after encapsulation of the invention；
Fig. 3 is current compensation schematic illustration of the invention；
Fig. 4 is voltage support schematic illustration of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of alternating-current charging pile for improving three-phase load active power, including main MCU unit, and the master
MCU unit is connected with card reading unit, three-phase charge circuit unit, input unit, display unit, metering by the distribution of total data line
Unit, electromagnetism warehouse receipt member, voice guide unit, standby power unit, lightning protection electric leakage unit, communication unit, inclination angle detection unit,
The card reading unit, charge circuit unit, input unit, display unit, metering units, electromagnetism warehouse receipt member, voice guide unit,
Standby power unit, lightning protection electric leakage unit, communication unit, inclination angle detection unit are connect with main MCU unit respectively, the display
Unit includes Operation display module and equipment state display module, and the three-phase charge circuit unit accesses three phase network, described
Three phase network is connected with reactive power compensator.
The composition and function of charging pile each unit are introduced separately below:
Card reading unit: compatible various contacts and non-contact IC card are effectively written and read subscriber card, by user information
It feeds back to charger and fills main MCU；
Input unit: " capacitance touch inductive keyboard " is placed in acrylic panel back, by touching acrylic panel,
The information of human-computer interaction is effectively transmitted to the main MCU of charging pile；
Electromagnetism warehouse receipt member: electromagnetism storehouse is mainly used for connecting charging plug, and confirms whether charging plug is fully connected, and
And during entire charging, door is latched, to ensure the safety of entire charging process, while preventing charging gun from being stolen by people
It walks；
Voice guide unit: according to entire charging process, carrying out voice guide to the work in any one stage, so as to
The entire charging process of the easier completion in family；
Display unit: mainly by 7 cun of liquid crystal displays, three " RUN "s, " charging ", " failure " indicator light are constituted, display
Record of charging, warning message, battery information, system information, battery electricity.Also device parameter, unit price can be set.Instruction
Lamp is in charging: " RUN ", " charging " indicator light can be always on, and show " charging " on LCD screen.When standby: " RUN " refers to
Show that lamp can be always on；" standby " is shown on LCD screen.Malfunction: " failure " indicator light can be always on, display " event on LCD screen
Barrier "；
Metering units: according to existing period rate, accurately measuring the charge capacity of user, while by electricity consumption
It is calculated；
Storage unit: local solid-state memory is up to 32M, by user information, the parameters of charge information, electric car
Local preservation is carried out, can be reserved for 3 months or more user's valid data；
Charge circuit unit: it is mainly used for the division of forceful electric power；
Lightning protection electric leakage unit: including two major parts: first is that lightning-protection module, another aspect electric leakage module；Since charging pile is most
Outdoors, after power supply line is by being struck by lightning, lightning-protection module is filled at electric power incoming line, and the effect of lightning-protection module is for protecting electricity for installation
Various electrical equipments are from lightning surge, switching overvoltage, one kind of Frequency Transient Overvoltage impact and damage in Force system
Electric appliance.Lightning-protection module be on sensing route after high pressure moment route and " ground " connection, lightning current of releasing.Reach protection
The purpose of charging pile.Electric leakage module connects the earth when the phase line of protected route directs or through unexpected load, and
It generates approximate sine wave and its virtual value is slowly varying residual current, when the electric current is greater than certain numerical value, electric leakage is protected
Shield device cuts off the route, and earth leakage protective device can use zero sequence current mutual inductor when realizing, effect is reflection leakage current
Signal, therefore constitute the detection part of entire earth leakage protective device；There are also measuring and amplifying leakage current signal part is used for, electric leakage is constituted
The comparison of protector, control section；Earth leakage protective execution part can be constituted using A.C. contactor.Working as charging pile
It when electric leakage, is quickly separated with power supply, it is ensured that the safety of the person and entire power utilization environment；
Standby power unit: the lead-acid battery comprising charging circuit, discharge circuit, 12V/5A charges electric in power supply state
Road is depressured 220V circuit, is rectified, while judging the voltage of battery, if under-voltage, charges to it；Work as charging pile
In power failure, lead-acid battery can be powered entire charging pile by discharge circuit, at present the capacity energy of lead-acid battery
Ensure the clearing that can swipe the card in charging pile 24 hours, takes out charging cable from electromagnetism storehouse；
Communication unit: communication module includes uplink: Ethernet, GPRS/CDMA, RS232, infrared；Downlink include CAN,
RS485；Downlink is connect using RS485 with electric energy meter；Alternating-current charging pile is communicated by CAN bus and Vehicular charger, is led to
It crosses the mode that CAN communication is shaken hands and judges whether charger correctly connect with alternating-current charging pile, such as incorrect connection can not then start
Charging process；Obtain the relevant parameter information of battery, such as battery voltage, remaining capacity, battery temperature.Alternating-current charging pile
Uplink can be communicated by GPRS/CDMA or Ethernet and background monitoring system, charge information is uploaded to main website, in order to master
It stands and entire charging system is managed.
Inclination angle detection unit: having inclination angle detection design inside charging pile, when charging pile because by vehicle collision, angle occurs
When inclination, main power circuit can be automatically cut off, to protect the safety of life and entire power utilization environment.
Main MCU: using 32 risc chips, and the acquisition of data, transmission are carried out by CAN bus, 485 buses, Ethernet
Data and the data of acquisition judge, and according to it is quasi- according to standard agreement bear with the connection of holding network from the background it is logical
Interrogate management function.According to requiring control system association item to handle all module design tasks.
Reactive power compensator: as shown in Fig. 2, it is mainly by controller 1, signal picker 2, IGBT driving 3 and two
SVG module composed by chain structure is formed.
The controller 1 is control arithmetic center, internal that there is DSP digital signal processing chip and pwm signal to send out
Raw device, and support remote data transmission function, which is completed by 485 communication interfaces.
The IGBT driving 3 can export sufficiently large push pull electric current, fast enough to IGBT gate capacitance charge and discharge
Electricity, to open or close IGBT fast enough, the switching characteristic of this frequency modulation response can realize the reality to voltage or current
When compensate.
The signal picker 2 can acquire the voltage or current signal at three-phase bus end, and by wireless or
The voltage signal of acquisition or current signal are transferred to the 1 internal control DSP of controller and calculate analysis by wired mode, then root
PWM signal generator sending control signal is controlled according to the setting of the controller 1 wants inverter circuit generation satisfaction to IGBT
The reactive compensation electric current asked.
It is following when the signal picker 2 is to acquire CT (current transformer) of the current signal at three-phase bus end
The course of work:
As shown in figure 3, CT (current transformer) is used to detect the electricity on the three-phase bus between power grid and unbalanced load
Signal is flowed, as the electric current between the three-phase bus that detects under original state is divided into 5A, 10A, 15A, each phase that CT will test
Current signal is sent to the controller 1 and carries out processing analysis, and judges whether system is located according to the numerical value that controller 1 is set
In non-equilibrium state, while the current value converted needed for each phase bus when reaching equilibrium state is calculated, then passes through the control
PWM signal generator in device 1 processed transmits drive signals to the IGBT and drives and it is made to start to act, will be on three-phase bus
Out-of-balance current from electric current it is big be mutually transferred to the small phase of electric current (current direction that arrow indicates in such as Fig. 2), finally make three
Mutually reach the equilibrium state of setting value.
When the signal picker 2 is to acquire the voltage signal at three-phase bus end, the course of work is as follows:
As shown in figure 4, being respectively a compensation at the connection line 6 being connect with three-phase bus and the connecting node of each phase bus
A signal picker 2 for being able to detect voltage signal is arranged at each compensation point, samples in the voltage to compensation point for point
Afterwards, information of voltage is passed to the controller 1 by the signal picker 2, and the controller 1 is believed via internal DSP number
Number processing chip processing after judge each compensation point voltage signal whether be more than or be less than setting value, when detect voltage letter
Number be more than the pressure regulation upper limit when, the controller 1 drive the IGBT make the SVG module being made of each inverter circuit output perception electricity
Stream, to reduce voltage；When detect voltage signal low-pressure adjusting pressure prescribe a time limit, the controller 1 drive the IGBT make by
The SVG module output capacity current (arrow indicates direction in such as Fig. 3, is capacity current outbound course) of each inverter circuit composition,
When needing to export capacity current, standby voltage compensating line 11 can be specially set and connect with the bus, to promote phase mother
Voltage on line stablizes each phase voltage in the normal range.
The controller 1, IGBT driving 3, each reactor 7 and each described by inverter circuit 4 and direct current
The chain link for holding 5 compositions is packaged in a SPC cabinet body 8, is formed a SPC module 9, is provided with multiple connect on the SPC cabinet body 8
Line terminals 901, each connecting terminal 901 are electrically connected with the outside of each reactor 7 respectively, and pass through each connecting terminal
901 are electrically connected in which can be convenient with the three-phase bus of the power grid.
As shown in connection with fig. 4, the SPC cabinet body 901 is provided with multiple connecting terminals such as XA, XB, XC and XN, therein
XA, XB, XC connecting terminal 901 can be electrically connected with each firewire of three-phase bus, and XN therein can be connect with the zero curve of power grid, also
Settable PE connecting terminal, for being grounded.
Further, to guarantee stability of the invention, arrester is provided between three-phase bus and each reactor 7
10, one end is electrically connected with each phase bus, the other end be common ground end, further include having three arresters, be electrically connected in
Route between each breaker and each reactor.
Using after this reactive power compensator, for the electricity consumption power grid of charging pile, this reactive power compensator three-phase is being installed
Current imbalance is serious, and out-of-balance current is about 50A, and neutral line current reaches 44A；Three-phase current is in a basic balance after compensation, uneven
The electric current that weighs is about 2A, and neutral line current drops to 15A, and degree of unbalancedness drops to 1% by 34%.
Standby power unit working principle included by the alternating-current charging pile are as follows: the alternating-current charging pile provides AC220V/7kw
Alternating Current Power Supply ability, in power supply state, charging circuit is depressured 220V circuit, is rectified, while judging the voltage of battery,
If under-voltage, charge to it；When charging pile is in power failure, lead-acid battery can be by discharge circuit to entire charging
Stake is powered, and the capacity of lead-acid battery can ensure that the clearing that can swipe the card in charging pile 24 hours at present, is taken out and is charged from electromagnetism storehouse
Cable.
Referring to figure 2., electric car DC charging motor charging flow is as follows:
1) user holds subscriber card, swipes the card on alternating-current charging pile, and alternating-current charging pile reads user information, passes through " soft-touch type
Induction keyboard " inputs password, while user information is uploaded to main website, and make corresponding permission identification；
2) alternating-current charging pile main control module judges whether user is correct, if has enough residual amounts, if user
Correctly and there is the enough amount of money, then open socket door lock, prompts connection charging plug；
3) referring to figure 3. with 4, alternating-current charging pile master control molding is closed four S1 of figure, sending ± 12V pwm signal, when vehicle-mounted
When charger receives pwm signal, confirmation charging gun is connect in place with charging socket, and the voltage of test point 1 changes, simultaneously
Whether Vehicular charger confirmation itself connect normal with battery, if normally closed S2, the voltage of test point 1 becomes again
Change.Main control module receives charging plug successful connection, and battery connects normal signal, and main control module confirmation can charge, together
When be latched electromagnetism storehouse, and be shown on liquid crystal display.
4) user is joined according to the information that liquid crystal display prompts according to configuring the case where oneself by " soft-touch type induction keyboard "
Number, selection are full of one of mode, amount of money mode, electricity mode, time mode automatically, input corresponding parameter, confirmation is filled
Electricity.
5) in charging process, main control module timing detection Vehicular charger charged state, when occur over-voltage, it is under-voltage, leakage
When electricity etc. is abnormal, charger stops being powered immediately, and alarm lamp is bright, and warning message is uploaded to Charge Management service main website.
6) battery charges full of terminating or terminates to charge manually, while settling accounts the charging amount of money, terminates this charging.Exchange is filled
Relevant information is uploaded to main website by modes such as Ethernets or GRPS/CDMA by electric stake.
To sum up structure of the invention and principle it is found that raising three-phase load active power of the invention alternating-current charging pile,
Standby power unit can effectively be such that charging pile work normally 24 hours, maintain the integrality of charging, reduce because having a power failure
The charging of initiation is complained, meanwhile, when sending a telegram here again, cycle charging can be carried out to standby power unit, to extend backup power source
Unit and on-vehicle battery service life；In addition the problem of it also solves original metal keyboard waterproof, is connected with charging pile complete machine, charging
The problem of stake human-computer interaction waterproof problem and keyboard service life；And the reactive power compensator used, reach power grid in time
Equilibrium state, greatly reduces the consumption of reactive power, and reduces the high cost of conventional compensation equipment, while improving and filling
Electrical efficiency and utilization rate of electrical.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of alternating-current charging pile for improving three-phase load active power, which is characterized in that including main MCU unit, and the main MCU
Unit is connected with card reading unit, three-phase charge circuit unit, input unit, display unit, metering list by the distribution of total data line
Member, electromagnetism warehouse receipt member, voice guide unit, standby power unit, lightning protection electric leakage unit, communication unit, inclination angle detection unit, institute
State card reading unit, charge circuit unit, input unit, display unit, metering units, electromagnetism warehouse receipt member, voice guide unit, standby
It is connect respectively with main MCU unit with power supply unit, lightning protection electric leakage unit, communication unit, inclination angle detection unit, the display list
Member includes Operation display module and equipment state display module, and the three-phase charge circuit unit accesses three phase network, and described three
Phase power grid is connected with reactive power compensator；
The reactive power compensator includes:
Controller；
Signal picker is electrically connected to the three-phase bus of power grid, detects the voltage/current signals of three-phase bus, and communication connection
In the controller；
IGBT driving, is electrically connected at the controller and is driven by it；
Two concatenated chain links, each chain link include more than two in parallel inverter circuits and end and each inverter circuit simultaneously
The DC capacitor of connection；
Three-phase bus passes through the series circuit that a connection line is connected between two chain links respectively, includes string in each phase line
The reactor and breaker of connection；
It is the following course of work when the signal picker is to acquire the current transformer of the current signal at three-phase bus end:
Current transformer is used to detect the current signal on the three-phase bus between power grid and unbalanced load, and current transformer will
Each phase current signal detected is sent to the controller and carries out processing analysis, and is judged according to the numerical value of controller setting
Whether system is in non-equilibrium state, while calculating the current value converted needed for each phase bus when reaching equilibrium state, then
The IGBT is transmitted drive signals to by the PWM signal generator in the controller to drive and it is made to start to act, it will
Out-of-balance current on three-phase bus from electric current it is big be mutually transferred to the small phase of electric current, so that three-phase is reached the flat of setting value
Weighing apparatus state；
When the signal picker is to acquire the voltage signal at three-phase bus end, the course of work is as follows:
It is respectively a compensation point at the connecting node of the connection line and each phase bus that are connect with three-phase bus, at each compensation point
One signal picker for being able to detect voltage signal, after the voltage to compensation point samples, the signal picker are set
Information of voltage is passed into the controller, the controller judges after handling via internal DSP digital signal processing chip
Whether the voltage signal of each compensation point is more than or is less than setting value, when the voltage signal detected is more than the pressure regulation upper limit, institute
Stating controller drives the IGBT that the SVG module being made of each inverter circuit is made to export inductance current, to reduce voltage；Work as inspection
The voltage signal low-pressure adjusting pressure measured is prescribed a time limit, and the controller drives the IGBT to make the SVG mould being made of each inverter circuit
Block exports capacity current, and when needing to export capacity current, setting standby voltage compensating line is connect with the bus, is somebody's turn to do with being promoted
Voltage on phase bus stablizes each phase voltage in the normal range；
Electric car DC charging motor charging flow is as follows:
1) user holds subscriber card, swipes the card on alternating-current charging pile, and alternating-current charging pile reads user information, passes through soft-touch type sensor key
Disk inputs password, while user information is uploaded to main website, and make corresponding permission identification；
2) alternating-current charging pile main control module judges whether user is correct, if has enough residual amounts, if user is correct
And have the enough amount of money, then socket door lock is opened, connection charging plug is prompted；
3) alternating-current charging pile master control molding closure S1, sending ± 12V pwm signal, when Vehicular charger receives pwm signal,
Confirmation charging gun is connect in place with charging socket, and the voltage of test point 1 changes, while Vehicular charger confirmation itself and electricity
Whether pond connection is normal, if normally closed S2, the voltage of test point 1 changes again；Main control module receives charging and inserts
Head successful connection, battery connects normal signal, main control module confirmation charging, while being latched electromagnetism storehouse, and be shown in liquid crystal display
On；
4) user is by soft-touch type induction keyboard, according to the information that liquid crystal display prompts, according to configuration parameter the case where oneself, selection
Automatically it is full of one of mode, amount of money mode, electricity mode, time mode, inputs corresponding parameter, confirmation charging；
5) in charging process, main control module timing detection Vehicular charger charged state, when occurring, over-voltage, under-voltage, electric leakage is different
Chang Shi, charger stop being powered immediately, and alarm lamp is bright, and warning message is uploaded to Charge Management service main website；
6) battery charges full of terminating or terminates to charge manually, while settling accounts the charging amount of money, terminates this charging；Alternating-current charging pile
Relevant information is uploaded into main website by Ethernet or GRPS/CDMA mode.
2. improving the alternating-current charging pile of three-phase load active power as described in claim 1, which is characterized in that reactive compensation dress
Setting further includes having three arresters, and the route between each breaker and each reactor is electrically connected.
3. improving the alternating-current charging pile of three-phase load active power as described in claim 1, which is characterized in that the control
Device, IGBT driving, each reactor and each chain link are packaged in a SPC cabinet body, form a SPC module.
4. improving the alternating-current charging pile of three-phase load active power as described in claim 1, which is characterized in that described is spare
Power supply unit includes the lead-acid battery of charging circuit subelement, discharge circuit subelement and 12V/5A.
5. improving the alternating-current charging pile of three-phase load active power as described in claim 1, which is characterized in that communication unit packet
Uplink communication unit and downgoing communication unit are included, the alternating-current charging pile is carried out by uplink communication unit and background monitoring system
Communication, the alternating-current charging pile are communicated by downgoing communication unit with Vehicular charger.
6. improving the alternating-current charging pile of three-phase load active power as claimed in claim 5, which is characterized in that the uplink
Communication unit includes one of Ethernet, GPRS/CDMA, RS232, infrared or a variety of.
7. improving the alternating-current charging pile of three-phase load active power as claimed in claim 5, which is characterized in that the downlink
Communication unit includes pwm signal bus, CAN bus, one or more between RS485.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108725221A (en) * | 2017-04-13 | 2018-11-02 | 宁波轩悦行电动汽车服务有限公司 | A kind of charging station system and its management method for electric vehicle |
| CN107415761A (en) * | 2017-09-02 | 2017-12-01 | 重庆佩特电气有限公司 | A kind of power model for Electric Transit quick charge stake |
| CN110103735B (en) * | 2019-05-21 | 2022-06-17 | 兰州理工大学 | Electric automobile optimal charging access point selection method based on MOPSO algorithm |
| CN111806272B (en) * | 2020-06-02 | 2022-01-11 | 北京国网普瑞特高压输电技术有限公司 | Encrypted charging system and method for electric vehicle sharing charging pile |
| CN112078404A (en) * | 2020-09-22 | 2020-12-15 | 广州奕极机电科技有限公司 | Two-way new energy automobile fills electric pile with charge-discharge function |
| DE102021116871A1 (en) | 2021-06-30 | 2023-01-05 | Jungheinrich Aktiengesellschaft | Charger for a three-phase alternating current network and charging method for a battery |
| CN113393732A (en) * | 2021-07-05 | 2021-09-14 | 广州宣成教育科技有限公司 | Alternating current charging practical training system and method for new energy automobile |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011003859A1 (en) * | 2011-02-09 | 2012-08-09 | Robert Bosch Gmbh | System for charging an energy storage and method for operating the charging system |
| CN203119511U (en) * | 2012-12-20 | 2013-08-07 | 浙江万马新能源有限公司 | AC charging post |
| CN203119593U (en) * | 2012-12-11 | 2013-08-07 | 浙江万马新能源有限公司 | Alternating-current charging post system having stand-by power supply |
| CN104283319A (en) * | 2014-10-29 | 2015-01-14 | 国家电网公司 | Intelligent distribution transformer terminal |
| CN204349455U (en) * | 2014-12-01 | 2015-05-20 | 杭州中冶谐波科技研究有限公司 | Outdoor intelligent static compensation device |
| CN204442008U (en) * | 2014-11-30 | 2015-07-01 | 国家电网公司 | A kind of intelligent type low-voltage comprehensive distribution cabinet |
| CN204794132U (en) * | 2014-12-02 | 2015-11-18 | 浙江万马新能源有限公司 | Tree of charging |
-
2016
- 2016-08-31 CN CN201610785476.XA patent/CN106183878B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011003859A1 (en) * | 2011-02-09 | 2012-08-09 | Robert Bosch Gmbh | System for charging an energy storage and method for operating the charging system |
| CN203119593U (en) * | 2012-12-11 | 2013-08-07 | 浙江万马新能源有限公司 | Alternating-current charging post system having stand-by power supply |
| CN203119511U (en) * | 2012-12-20 | 2013-08-07 | 浙江万马新能源有限公司 | AC charging post |
| CN104283319A (en) * | 2014-10-29 | 2015-01-14 | 国家电网公司 | Intelligent distribution transformer terminal |
| CN204442008U (en) * | 2014-11-30 | 2015-07-01 | 国家电网公司 | A kind of intelligent type low-voltage comprehensive distribution cabinet |
| CN204349455U (en) * | 2014-12-01 | 2015-05-20 | 杭州中冶谐波科技研究有限公司 | Outdoor intelligent static compensation device |
| CN204794132U (en) * | 2014-12-02 | 2015-11-18 | 浙江万马新能源有限公司 | Tree of charging |
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|---|---|
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