CN108215902B - Integrated double-gun direct-current charger capable of scheduling at any power and control method - Google Patents
Integrated double-gun direct-current charger capable of scheduling at any power and control method Download PDFInfo
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- CN108215902B CN108215902B CN201711493073.9A CN201711493073A CN108215902B CN 108215902 B CN108215902 B CN 108215902B CN 201711493073 A CN201711493073 A CN 201711493073A CN 108215902 B CN108215902 B CN 108215902B
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- 238000012544 monitoring process Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 4
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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
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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
-
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
- G07F15/005—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity dispensed for the electrical charging of vehicles
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
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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
- B60L2210/00—Converter types
- B60L2210/30—AC to DC converters
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- 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
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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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
- 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)
- Microelectronics & Electronic Packaging (AREA)
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- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses an integrated double-gun direct-current charger capable of scheduling at any power and a control method. According to the invention, the on-off of each power dispatching direct current contactor is selected to respectively control one or more groups of charging modules to be connected with the charging guns so as to output the charging current, the technical problem that a double-gun charging pile system in the prior art cannot realize flexible dispatching is solved, the flexible dispatching of the charging power of the charging piles is realized, and any charging module can dispatch the charging current output through any charging gun, so that the utilization rate of the charging modules is improved, the cost of the charging piles is further reduced, and good economic and social benefits are achieved. The invention can be widely applied to various double-gun direct current chargers.
Description
Technical Field
The invention relates to a circuit device or a system for power supply or power distribution, in particular to a double-gun direct-current charger for an electric vehicle and a charging control method thereof.
Background
At present, charging piles at home and abroad are all one gun, more and more new energy vehicles are put into the market along with the gradual increase of the force of various governments on the support of the new energy vehicles, the improvement of the pile ratio of the electric vehicles is the subject to be faced by various governments, and more charging piles are built by using smaller social resources to improve the pile ratio and enable more new energy vehicles to be better used by more new energy vehicle owners. A one-machine-two-gun charging pile is a better solution among them.
In order to further respond to the call of social energy saving and emission reduction, build the electric pile that fills that possesses a quick-witted double gun function of charging with more economic input, can do fine coverage to installing the left and right two parking stalls of filling electric pile under the sunshade that hides rain, single display interface and the regional operation of also letting the car owner be very convenient to the stake machine that charges, when idle rifle that charges is not used simultaneously, fill the inside power that can transfer the module of charging automatically of electric pile, make online rifle that charges charge for electric automobile with maximum power, thereby improve the availability factor of filling electric pile.
In the prior art, although documents disclose one-machine multi-gun charging pile, the following problems still exist: every rifle that charges all is equipped with fixed charging current, and flexible scheduling can not be realized to charging power.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a double-gun direct current charger capable of flexibly scheduling charging power and a charging control method thereof.
The technical scheme adopted by the invention is as follows:
an integrated double-gun direct-current charger capable of scheduling at any power comprises two charging guns, a plurality of groups of charging modules and a power scheduling unit, wherein the two charging guns are respectively connected with direct-current buses for mounting the charging modules, and bus direct-current contactors are arranged on the two direct-current buses; the charging modules are sequentially arranged, the power dispatching direct current contactors are connected between the adjacent charging modules, and the power dispatching unit controls the number of the charging modules mounted under each direct current bus by controlling the on-off state of the power dispatching direct current contactors.
Preferably, two rifle that charge are first rifle and the second rifle that charges, correspond two DC bus and are first DC bus and second DC bus, correspond two sets of generating line direct current contactors and be first generating line direct current contactor and second generating line direct current contactor, the multiunit module of charging is the 1 st group to the M group module of charging, first group module of charging is connected with first DC bus, the M group module of charging is connected with second direct current bus, the N group module of charging is connected with last a set of module of charging through power scheduling direct current contactor, and wherein, M is for being greater than 1 natural number, and N is for being greater than 1 and less than or equal to M's natural number.
Preferably, said M is equal to 8, 6, 5 or 4.
Preferably, the dc charger includes the following three operating states: c1, only one of the two groups of bus direct current contactors is closed, the power scheduling unit controls the on-off state of each group of power scheduling direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the corresponding direct current bus and further control the power output by the direct current of the corresponding charging gun; c2, the two groups of bus direct current contactors are attracted, at least one group of direct current contactors in the multiple groups of power dispatching direct current contactors is disconnected, the power dispatching unit controls the on-off state of each group of power dispatching direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the two direct current buses, and further control the power output by the two charging guns; and C3, the two groups of bus direct current contactors are disconnected, and all the charging modules are shut down through the command of the power dispatching unit.
Preferably, the charging system also comprises a charging management unit and two interface boards corresponding to the two charging guns; the output end of the charging management unit is connected with an indicator lamp and a display screen, the input end of the charging management unit is connected with a card reader, and the charging management unit is respectively connected with a plurality of interface boards through a CAN bus; the two interface boards are connected with a power scheduling unit through a CAN bus; the power scheduling unit is in communication connection with the plurality of groups of charging modules through a CAN bus; and the on-off states of the bus direct current contactor and the power dispatching direct current contactor are respectively controlled by the power dispatching unit and the interface board.
Preferably, the charging module is an AC-DC module or a DC-DC module.
Preferably, the middle of the right side of the charger is provided with an air inlet, the upper part of the left side of the charger is provided with an air outlet, cold air is sucked into the air inlet, and heated hot air passing through each charging module is blown out from the middle upper part of the left side of the front; the air inlet is provided with the ventilation tripe, the ventilation tripe is fixed in air inlet department through the pivot, the machine internal position that charges that the air inlet corresponds is provided with the module of charging for the ventilation tripe accessible pivot is rotatory to be opened, makes things convenient for the maintenance and the change of the module of charging.
Preferably, the charging module is an AC-DC charging module, the AC-DC charging module is connected to an AC input line and a DC output line, the AC input line is disposed at the lower portion of the charger, the charging module is disposed at the middle portion of the charger, and the DC output line is disposed at the upper portion of the charger.
Preferably, the charger comprises a front door, and the front door is provided with a liquid crystal display screen, a charging management unit, a charging control panel, a monitoring panel, a card reader, an indicator lamp panel and an emergency stop button; the temperature and humidity sensor capable of being displayed is arranged in the middle of the front door, the temperature and humidity sensor is connected to the monitoring board through 485 signals, the heating and dehumidifying device is arranged on the middle lower portion of the front door, and the temperature and humidity condition inside the charger obtained through the monitoring board controls the starting and stopping of the heating and dehumidifying device so as to control the temperature and humidity inside the charger.
Preferably, the upper portion is provided with a hook in the machine, a vacant gun seat for containing the gun is arranged beside the hook, a sensor for feeding back whether the gun is in the reset position is arranged in the vacant gun seat, a dry node signal or a 485 signal is fed back to the monitoring board by the sensor, and a liquid crystal display screen can display the state whether the charging gun is in the reset position and play a voice prompt for requesting to reset the gun charging gun through a voice horn arranged on the front door.
A charging control method of an integrated double-gun direct-current charger capable of being scheduled at any power is applied to the integrated double-gun direct-current charger capable of being scheduled at any power, and comprises the following steps: s1, sequentially arranging a plurality of groups of charging modules between two direct current buses, and connecting a power dispatching direct current contactor between adjacent charging modules; and S2, controlling the on-off state of the power scheduling direct current contactor by using the power scheduling unit so as to control the number of the charging modules mounted under each direct current bus.
Preferably, the step S1 specifically includes: set gradually M group's the module of charging between two direct current bus, first group's the module of charging is connected with first direct current bus, M group's the module of charging is connected with second direct current bus, the Nth group's the module of charging is connected with last a set of module of charging through power scheduling direct current contactor, and wherein, M is for being greater than 1 natural number, and N is for being greater than 1 and less than or equal to M's natural number.
Preferably, the step S2 specifically includes the following three operating states: c1, only one of the two groups of bus direct current contactors is closed, the power scheduling unit controls the on-off state of each group of power scheduling direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the corresponding direct current bus and further control the power output by the direct current of the corresponding charging gun; c2, the two groups of bus direct current contactors are attracted, at least one group of direct current contactors in the multiple groups of power dispatching direct current contactors is disconnected, the power dispatching unit controls the on-off state of each group of power dispatching direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the two direct current buses, and further control the power output by the two charging guns; and C3, the two groups of bus direct current contactors are disconnected, and all the charging modules are shut down through the command of the power dispatching unit.
The invention has the beneficial effects that:
according to the invention, the on-off of each power dispatching direct current contactor is selected to respectively control one or more groups of charging modules to be connected with the charging guns so as to output the charging current, the technical problem that a double-gun charging pile system in the prior art cannot realize flexible dispatching is solved, the flexible dispatching of the charging power of the charging piles is realized, and any charging module can dispatch the charging current output through any charging gun, so that the utilization rate of the charging modules is improved, the cost of the charging piles is further reduced, and good economic and social benefits are achieved.
The invention can be widely applied to various double-gun direct current chargers.
Drawings
The following further describes embodiments of the present invention with reference to the accompanying drawings:
FIG. 1 is a system topology of a first embodiment of the present invention;
FIG. 2 is a system topology diagram of a second embodiment of the present invention;
FIG. 3 is a system topology of a third embodiment of the present invention;
fig. 4 is a schematic diagram of a right-view structure of a charger according to an embodiment of the present invention in a door-open state;
fig. 5 is a schematic left-view structural diagram of a door opening state of the charger according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a main view of a door opening state of an embodiment of the charger according to the present invention;
fig. 7 is a schematic perspective view of an embodiment of the charger of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The invention constructs a charging system capable of scheduling double guns with any power, and is configured with N groups of charging modules (the charging modules are AC-DC modules or DC-DC modules), wherein a power scheduling unit (CL5899-MNU monitoring board) needs to control 2 x (N +1) direct current contactors, wherein half of the direct current contactors are positive power scheduling direct current contactors, and half of the direct current contactors are negative power scheduling direct current contactors. According to the charging station, the charging requirements of small and medium-sized passenger vehicles of social vehicles and the power supply requirements of special buses are met, and the two charging guns can randomly schedule all charging modules of the whole system according to the requirements of the vehicles sent by the BMS to meet the requirement of maximum current output.
The basic concept of the invention is as follows: an integrated double-gun direct-current charger capable of scheduling at any power comprises two charging guns, a plurality of groups of charging modules and a power scheduling unit, wherein the two charging guns are respectively connected with direct-current buses for mounting the charging modules, and bus direct-current contactors are arranged on the two direct-current buses; the charging modules are sequentially arranged, the power dispatching direct current contactors are connected between the adjacent charging modules, and the power dispatching unit controls the number of the charging modules mounted under each direct current bus by controlling the on-off state of the power dispatching direct current contactors. The two charging guns are a first charging gun and a second charging gun, correspond to two direct current buses and are a first direct current bus and a second direct current bus, correspond to two sets of bus direct current contactors and are a first bus direct current contactor and a second bus direct current contactor, the multiunit charging module is the 1 st group to the M group charging module, the first group charging module is connected with the first direct current bus, the M group charging module is connected with the second direct current bus, the N group charging module is connected with the last group charging module through a power scheduling direct current contactor, wherein M is a natural number greater than 1, and N is a natural number greater than 1 and less than or equal to M.
As shown in fig. 1 to 3, in this embodiment, the charger further includes a billing management unit 5899-TCU, a monitor board, and a plurality of interface boards 5899-CCU corresponding to the plurality of charging guns; the output end of the billing management unit 5899-TCU is connected with an indicator light and a display screen, the indicator light is connected with the billing management unit 5899-TCU in an SPI communication mode, the input end of the billing management unit 5899-TCU is connected with a card reader, and the billing management unit 5899-TCU is respectively connected with a plurality of interface boards 5899-CCU through a CAN bus; the interface boards 5899-CCU are all connected with a direct current electric energy meter for detecting the current of the charging gun, and the plurality of interface boards 5899-CCU are all connected with the monitoring board through a CAN bus; the monitoring board is in communication connection with a plurality of groups of charging modules (modules for short in figures 1 to 3) through a CAN bus; the on-off states of the bus direct current contactor and the power dispatching direct current contactor are respectively controlled by a monitoring board and/or an interface board 5899-CCU.
As shown in fig. 4 to 7, the charger includes an illumination lamp 1, a speaker 2, a door switch 3, a lamp panel 4, switching power supplies 5 to 8, a molded case circuit breaker 9, an ac power meter 10, a current transformer 11, an empty gun holder 12, an emergency stop button 13, a display screen 14, a card reader 15, a security chip 16, a dc charging gun 17, a billing management unit TCU18, a monitor panel 19, a control panel 20, a dc power meter 21, an ac contactor 22, a connector 23, a dc contactor 24, a shunt 25, a fuse 26, a fan 27, a fan adapter plate 28, a lightning arrester 29, a circuit breaker 30, a maintenance socket 31, a relay 32, a terminal fixing member 33, a mark terminal 34, a fixing member 35, a terminal mark number 36, a terminal 37, a phoenix terminal 38, terminal partitions 39 to 40, a phase partition plate 41, a temperature and humidity transmitter 42, a heater 43, a rectification module 44, gun adapter board 45, CAN bus adapter board 46, panel terminal 47. Specifically, an air inlet is formed in the middle of the right side of the charger, an air outlet is formed in the upper portion of the left side of the charger, cold air is sucked into the air inlet, and heated hot air passing through each charging module is blown out from the middle upper portion of the left side of the front face. The charging module is an AC-DC charging module, the AC-DC charging module is connected with an AC input line and a DC output line, the AC input line is arranged at the lower part of the charger, the charging module is arranged at the middle part of the charger, and the DC output line is arranged at the upper part of the charger. The charger comprises a front door, and the front door is provided with a Liquid Crystal Display (LCD) 14, a charging management unit 18, a charging control panel 20, a monitoring panel 19, a card reader DKQ15, an indicator lamp panel 4 and an emergency stop button 13; the temperature and humidity sensor capable of being displayed is arranged in the middle of the front door, the temperature and humidity sensor is connected to the monitoring board through 485 signals, the heating and dehumidifying device is arranged on the middle lower portion of the front door, and the temperature and humidity condition in the charger obtained through the monitoring board 19 controls the heating and dehumidifying device to be started or stopped so as to control the temperature and humidity in the charger. The upper portion is provided with the rifle on the machine that charges and colludes, hangs the rifle and colludes the other empty rifle seat 12 that is provided with one and is used for holding the rifle that is provided with, and empty rifle seat 12 is inside to be provided with and to be used for feeding back whether return sensor (infrared sensor or hall sensor etc.) of rifle 17, sensor is with doing node signal or signal feedback to monitoring board 19, can show on the LCD14 whether state of reseing of rifle 17 and play the voice prompt who please reseed the rifle of charging through the pronunciation loudspeaker that sets up on the qianmen. The middle of the right side of the charger is provided with an air inlet, the upper part of the left side of the charger is provided with an air outlet, cold air is sucked in by the air inlet, and heated hot air passing through each charging module is blown out from the middle upper part of the left side of the front; the air inlet is provided with ventilation tripe 50, ventilation tripe 50 is fixed in air inlet department through pivot 51, the machine internal portion that charges that the air inlet corresponds puts and is provided with the module of charging for ventilation tripe 50 accessible pivot 51 is rotatory to be opened, makes things convenient for the maintenance and the change of the module of charging.
Example one
As shown in fig. 1, each charging gun capable of charging current through all charging modules is configured in the one-machine double-gun direct current charger, and any one charging gun can achieve full power output, so that an owner can enjoy the whole pile of quick charging service from any one charging gun.
A quick-witted double-gun direct current charger divides into eight groups with all the modules that charge, and every group comprises 1 module that charges, and direct current output end is directly mounted under a direct current generating line or indirect parallelly connected the mounting under two direct current generating lines through direct current contactor, totally two direct current generating lines, and the other end of direct current generating line is connected with the control direct current contactor of charging (generating line direct current contactor), and the direct current rifle that charges is being connected to the control direct current contactor of charging's the other end, and power scheduling direct current contactor has all been crossed over between per two direct current generating lines. The power dispatching direct current contactor between every two direct current buses, the corresponding bus direct current contactors, and nine groups of 18 direct current contactors of a C-shaped annular passage formed by two direct current charging guns only allow the following three states: the method comprises the steps that 1, a Ka or Kb direct current contactor is attracted, namely a charging gun close to one side of a vehicle controls only one group of direct current contactors to be attracted, corresponding K1, K2, K3, K4, K5, K6 and K7 can be in any combination state, attraction of the direct current contactors is started from the nearest power dispatching direct current contactor of the group of bus direct current contactors close to the attracted first along with the increase of power requirements (if Ka attraction is performed, attraction is started from K1, K2, K3, K4, K5, K6 and K7 are sequentially attracted along with the increase of the power requirements, the output power of the charging gun is increased by 15kw when one group of power dispatching direct current contactors is attracted each time, attraction of the K7 is started to be attracted along with the increase of the power requirements, K6, K5, K4, K3, K2 and K1 are sequentially attracted along with the increase of the power requirements, when one group of power dispatching direct current contactors are increased, the attraction gun output power is increased, the charging gun is used, the charging gun is hung with a plurality of charging modules at the moment, and the direct current output is carried out on the electric automobile according to the power of the charging modules. And 2, both Ka and Kb direct current contactors are closed, more than one direct current contactor among K1, K2, K3, K4, K5, K6 and K7 is required to be opened, and the 'short circuit' result caused by a 'large C' -shaped annular passage-power dispatching loop is avoided when two vehicles are charged simultaneously. And 3, the Ka and Kb direct current contactors are disconnected, 7 groups of direct current contactors, namely K1, K2, K3, K4, K5, K6 and K7 CAN be free from state constraint, and the charging control system directly sends commands in the agreed format of the CAN communication protocol to shut down all charging modules.
A typical one-machine double-gun charger is characterized in that the system topology is shown in fig. 1 (fig. 1 only shows the layout configuration of positive direct current contactors, the layout configuration of negative contactors are completely consistent, and the layout configuration of the positive direct current contactors is also shown in the following embodiments II and III, which are not repeated here), the system is only provided with two charging guns, the number of charging modules mounted under a direct current bus corresponding to each charging gun is changed along with the change of state combinations of seven groups of direct current contactors of K1-K7, and each charging gun is provided with a gun line capable of passing through 250A.
And each charging gun calls the power of the nearest AC-DC charging module mounted under the corresponding direct current bus in the highest priority. The direct current contactors K1, K2, K3, K4, K5, K6, and K7 between the charging gun and the charging gun may all adopt a direct current contactor having an overcurrent capacity of 250A.
Ka. Kb, K1, K2, K3, K4, K5, K6 and K7, wherein the nine groups of 9 groups of direct current contactors on the large C-shaped annular passage only allow the following three states: the method comprises the steps that 1, a Ka or Kb direct current contactor is attracted, namely a charging gun close to one side of a vehicle controls only one group of direct current contactors to be attracted, corresponding K1, K2, K3, K4, K5, K6 and K7 can be in any combination state, attraction of the direct current contactors is started from the nearest power dispatching direct current contactor of the group of bus direct current contactors close to the attracted first along with the increase of power requirements (if Ka attraction is performed, attraction is started from K1, K2, K3, K4, K5, K6 and K7 are sequentially attracted along with the increase of the power requirements, the output power of the charging gun is increased by 15kw when one group of power dispatching direct current contactors is attracted each time, attraction of the K7 is started to be attracted along with the increase of the power requirements, K6, K5, K4, K3, K2 and K1 are sequentially attracted along with the increase of the power requirements, when one group of power dispatching direct current contactors are increased, the attraction gun output power is increased, the charging gun is used, the charging gun is hung with a plurality of charging modules at the moment, and the direct current output is carried out on the electric automobile according to the power of the charging modules. And 2, both Ka and Kb direct current contactors are closed, more than one direct current contactor among K1, K2, K3, K4, K5, K6 and K7 is required to be opened, and the 'short circuit' result caused by a 'large C' -shaped annular passage-power dispatching loop is avoided when two vehicles are charged simultaneously. And 3, the Ka and Kb direct current contactors are disconnected, 7 groups of direct current contactors, namely K1, K2, K3, K4, K5, K6 and K7 CAN be free from state constraint, and the charging control system directly sends commands in the agreed format of the CAN communication protocol to shut down all charging modules.
Example two
As shown in fig. 2, the one-machine two-gun dc charger divides all charging modules into six groups, each group is composed of 1 charging module, the dc output end is directly mounted under one dc bus or indirectly mounted under two dc buses through a dc contactor in parallel, there are two dc buses in total, the other end of the dc bus is connected with a charging control dc contactor (bus dc contactor), the other end of the charging control dc contactor is connected with a dc charging gun, and a power dispatching dc contactor is bridged between every two dc buses. The power dispatching direct current contactor between every two direct current buses, the corresponding bus direct current contactors, and seven groups of 14 direct current contactors of a C-shaped annular passage formed by two direct current charging guns only allow the following three states: the method comprises the steps that 1, a Ka or Kb direct current contactor is attracted, namely a charging gun close to one side of a vehicle controls the direct current contactor to have only one group of attracted direct current contactors, the corresponding K1, K2, K3, K4 and K5 can be combined in any state, attraction of the direct current contactor is started from the nearest power dispatching direct current contactor of the group of bus direct current contactors close to the attracted bus with the increase of power demand (if Ka attraction is performed, attraction is started from K1, K2, K3, K4 and K5 are sequentially attracted with the increase of power demand, the output power of a charging gun is increased by 20kw when a group of power dispatching direct current contactors are attracted, attraction is started from K5 when Kb attraction is performed, K4, K3, K2 and K1 are sequentially attracted with the increase of power demand, and when a group of power dispatching direct current contactors are attracted, the output power of the charging gun is increased by 20kw when the bus is attracted direct current contactor, and the charging gun is used for charging. And 2, both Ka and Kb direct current contactors are closed, more than one direct current contactor among K1, K2, K3, K4 and K5 is required to be opened, and the 'short circuit' result caused by a 'large C' -shaped annular passage-power dispatching loop is avoided when two vehicles are charged simultaneously. And 3, the Ka and Kb direct current contactors are disconnected, 5 groups of direct current contactors, namely K1, K2, K3, K4 and K5 CAN be free from state constraint, and the charging control system directly sends a command to shut down all charging modules in an agreed format of a CAN communication protocol.
A typical one-machine two-gun charger has a system topology shown in FIG. 2, and the system is configured with two charging guns. The number of charging modules mounted under the direct current bus corresponding to each charging gun is changed along with the change of state combinations of seven groups of direct current contactors K1-K5, and each charging gun is provided with a gun line capable of passing through 250A. The power of the charging module illustrated below may be 15kw of charging module or 20kw of charging module. The following statements are all exemplified with a 20kw module.
And each charging gun calls the power of the nearest AC-DC charging module mounted under the corresponding direct current bus in the highest priority. The DC contactors K1, K2, K3, K4 and K5 between the charging gun and the charging gun can adopt the DC contactors with the over-current capability of 250A.
Ka. Kb, K1, K2, K3, K4 and K5, and the 7 groups of direct current contactors on the seven groups of large C-shaped annular passages only allow the following four states: the method comprises the steps that 1, a Ka or Kb direct current contactor is attracted, namely a charging gun close to one side of a vehicle controls only one group of direct current contactors to be attracted, corresponding K1, K2, K3, K4 and K5 can be combined in any state, attraction of the nearest power dispatching direct current contactor of the group of bus direct current contactors close to attraction is started from the first side along with increase of power demand (if Ka attraction is started, attraction is started from K1, K2, K3, K4 and K5 are sequentially attracted along with increase of power demand, the output power of the charging gun is increased by 20kw when a group of power dispatching direct current contactors are attracted, attraction is started from K5 if Kb attraction is started, K6, K5, K4, K3, K2 and K1 are sequentially attracted along with increase of power demand, and when a group of power dispatching direct current contactors are attracted each group of power dispatching direct current contactors are attracted, the output power of the charging gun is increased by 20kw), the charging gun is hung with a plurality of charging modules at the moment, and the direct current output is carried out on the electric automobile according to the power of the charging modules. And 2, both Ka and Kb direct current contactors are closed, more than one direct current contactor among K1, K2, K3, K4 and K5 is required to be opened, and the 'short circuit' result caused by a 'large C' -shaped annular passage-power dispatching loop is avoided when two vehicles are charged simultaneously. And 3, the Ka and Kb direct current contactors are disconnected, 5 groups of direct current contactors, namely K1, K2, K3, K4 and K5 CAN be free from state constraint, and the charging control system directly sends a command to shut down all charging modules in an agreed format of a CAN communication protocol.
EXAMPLE III
As shown in fig. 3, the one-machine two-gun dc charger divides all charging modules into five groups, each group is composed of 1 charging module, the dc output end is directly mounted under one dc bus or indirectly mounted under two dc buses through a dc contactor in parallel, there are two dc buses in total, the other end of the dc bus is connected with a charging control dc contactor (bus dc contactor), the other end of the charging control dc contactor is connected with a dc charging gun, and a power dispatching dc contactor is bridged between every two dc buses. The power dispatching direct current contactor between every two direct current buses, the six groups of 12 direct current contactors of the two direct current buses, the corresponding bus direct current contactors and a C-shaped annular passage formed by two direct current charging guns only allow the following three states: 1, the Ka or Kb direct current contactor is actuated, namely the charging gun close to one side of the vehicle controls the direct current contactor to be actuated by only one group, the corresponding K1, K2, K3 and K4 can be combined in any state, the attraction of the nearest power dispatching direct current contactor of the group of bus direct current contactors close to the attraction is started along with the increase of the power demand (if the attraction is Ka, the attraction is started from K1, the attraction is started along with the increase of the power demand, K2, K3 and K4 are sequentially attracted, the output power of the charging gun is increased by 30kw when a group of power dispatching direct current contactors are attracted, if the attraction is Kb, the attraction is started from K4, the attraction is sequentially attracted along with the increase of the power demand, K3, K2 and K1 are sequentially attracted, the output power of the charging gun is increased by 30kw when a group of power dispatching direct current contactors are attracted, and the charging gun attracted for the bus direct current contactor is in use, the charging gun is hung with a plurality of charging modules at the moment, and the direct current output is carried out on the electric automobile according to the power of the charging modules. And 2, both Ka and Kb direct current contactors are closed, more than one direct current contactors among K1, K2, K3 and K4 must be opened, and the effect of short circuit caused by a large C-shaped annular passage-power dispatching loop is avoided when two vehicles are charged simultaneously. And 3, the Ka and Kb direct current contactors are disconnected, 4 groups of direct current contactors, namely K1, K2, K3 and K4 CAN be free from state constraint, and the charging control system directly sends a command to shut down all charging modules in an agreed format of a CAN communication protocol.
A typical one-machine two-gun charger has a system topology shown in FIG. 3, and the system is configured with two charging guns. The number of charging modules mounted under the direct current bus corresponding to each charging gun is changed along with the change of state combinations of seven groups of direct current contactors K1-K4, and each charging gun is provided with a gun line capable of passing through 250A. The power of the charging module illustrated below may be 15kw, 20kw, or 30 kw. The following statements are all illustrated with a 30kw module as an example.
And each charging gun calls the power of the nearest AC-DC charging module mounted under the corresponding direct current bus in the highest priority. The dc contactors K1, K2, K3 and K4 between the charging gun and the charging gun may adopt a dc contactor having an overcurrent capacity of 250A.
Ka. The 6 groups of direct current contactors on the six groups of large C-shaped ring-shaped paths of Kb, K1, K2, K3 and K4 only allow the following four states: 1, the Ka or Kb direct current contactor is actuated, namely the charging gun close to one side of the vehicle controls the direct current contactor to be actuated by only one group, the corresponding K1, K2, K3 and K4 can be combined in any state, the attraction of the nearest power dispatching direct current contactor of the group of bus direct current contactors close to the attraction is started along with the increase of the power demand (if the attraction is Ka, the attraction is started from K1, the attraction is started along with the increase of the power demand, K2, K3 and K4 are sequentially attracted, the output power of the charging gun is increased by 30kw when a group of power dispatching direct current contactors are attracted, if the attraction is Kb, the attraction is started from K4, the attraction is sequentially attracted along with the increase of the power demand, K3, K2 and K1 are sequentially attracted, the output power of the charging gun is increased by 30kw when a group of power dispatching direct current contactors are attracted, and the charging gun attracted for the bus direct current contactor is in use, the charging gun is hung with a plurality of charging modules at the moment, and the direct current output is carried out on the electric automobile according to the power of the charging modules. And 2, both Ka and Kb direct current contactors are closed, more than one direct current contactors among K1, K2, K3 and K4 must be opened, and the effect of short circuit caused by a large C-shaped annular passage-power dispatching loop is avoided when two vehicles are charged simultaneously. And 3, the Ka and Kb direct current contactors are disconnected, 4 groups of direct current contactors, namely K1, K2, K3 and K4 CAN be free from state constraint, and the charging control system directly sends a command to shut down all charging modules in an agreed format of a CAN communication protocol.
The double-gun direct current charging system with the structure can change the original use of 12 direct current contactors of 250A into the use of 4 direct current contactors of 150A and 8 direct current contactors of 250A, thereby reducing the cost.
The invention also provides a charging control method of the integrated double-gun direct-current charger capable of scheduling at any power, which is applied to the integrated double-gun direct-current charger capable of scheduling at any power, and the method comprises the following steps: s1, sequentially arranging a plurality of groups of charging modules between two direct current buses, and connecting a power dispatching direct current contactor between adjacent charging modules; and S2, controlling the on-off state of the power scheduling direct current contactor by using the power scheduling unit so as to control the number of the charging modules mounted under each direct current bus.
Preferably, the step S1 specifically includes: set gradually M group's the module of charging between two direct current bus, first group's the module of charging is connected with first direct current bus, M group's the module of charging is connected with second direct current bus, the Nth group's the module of charging is connected with last a set of module of charging through power scheduling direct current contactor, and wherein, M is for being greater than 1 natural number, and N is for being greater than 1 and less than or equal to M's natural number.
Preferably, the step S2 specifically includes the following three operating states: c1, only one of the two groups of bus direct current contactors is closed, the power scheduling unit controls the on-off state of each group of power scheduling direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the corresponding direct current bus and further control the power output by the direct current of the corresponding charging gun; c2, the two groups of bus direct current contactors are attracted, at least one group of direct current contactors in the multiple groups of power dispatching direct current contactors is disconnected, the power dispatching unit controls the on-off state of each group of power dispatching direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the two direct current buses, and further control the power output by the two charging guns; and C3, the two groups of bus direct current contactors are disconnected, and all the charging modules are shut down through the command of the power dispatching unit.
According to the invention, the on-off of each power dispatching direct current contactor is selected to respectively control one or more groups of charging modules to be connected with the charging guns so as to output the charging current, the technical problem that a double-gun charging pile system in the prior art cannot realize flexible dispatching is solved, the flexible dispatching of the charging power of the charging piles is realized, and any charging module can dispatch the charging current output through any charging gun, so that the utilization rate of the charging modules is improved, the cost of the charging piles is further reduced, and good economic and social benefits are achieved. The invention can be widely applied to various double-gun direct current chargers.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. An integrated double-gun direct current charger capable of scheduling power randomly is characterized by comprising two charging guns, a plurality of groups of charging modules and a power scheduling unit,
the two charging guns are respectively connected with a direct current bus for mounting a charging module, and bus direct current contactors are arranged on the two direct current buses;
the charging modules are sequentially arranged, a power dispatching direct current contactor is connected between every two adjacent charging modules, and the power dispatching unit controls the number of the charging modules mounted under each direct current bus by controlling the on-off state of the power dispatching direct current contactor;
the direct current charger comprises the following three working states:
c1, only one of the two groups of bus direct current contactors is closed, the power scheduling unit controls the on-off state of each group of power scheduling direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the corresponding direct current bus and further control the power output by the direct current of the corresponding charging gun;
c2, the two groups of bus direct current contactors are attracted, at least one group of direct current contactors in the multiple groups of power dispatching direct current contactors is disconnected, the power dispatching unit controls the on-off state of each group of power dispatching direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the two direct current buses, and further control the power output by the two charging guns;
and C3, the two groups of bus direct current contactors are disconnected, and all the charging modules are shut down through the command of the power dispatching unit.
2. The integrated double-gun direct-current charger capable of scheduling any power according to claim 1, wherein the two charging guns are a first charging gun and a second charging gun, the first direct-current bus and the second direct-current bus correspond to the two direct-current buses, the first bus direct-current contactor and the second bus direct-current contactor correspond to two groups of bus direct-current contactors, the multiple groups of charging modules are from 1 st group to Mth group of charging modules, the first group of charging modules is connected with the first direct-current bus, the Mth group of charging modules is connected with the second direct-current bus, the Nth group of charging modules is connected with the previous group of charging modules through the power scheduling direct-current contactor, wherein M is a natural number greater than 1, and N is a natural number greater than 1 and less than or equal to M.
3. The integrated double-gun direct current charger capable of scheduling any power according to claim 2, wherein M is equal to 8, 6, 5 or 4.
4. The integrated double-gun direct-current charger capable of scheduling any power according to claim 1, characterized by further comprising a charging management unit and two interface boards corresponding to the two charging guns;
the output end of the charging management unit is connected with an indicator lamp and a display screen, the input end of the charging management unit is connected with a card reader, and the charging management unit is respectively connected with a plurality of interface boards through a CAN bus;
the two interface boards are connected with a power scheduling unit through a CAN bus;
the power scheduling unit is in communication connection with the plurality of groups of charging modules through a CAN bus;
and the on-off states of the bus direct current contactor and the power dispatching direct current contactor are respectively controlled by the power dispatching unit and the interface board.
5. The integrated double-gun direct-current charger capable of scheduling any power according to claim 4, wherein the charging module is an AC-DC module or a DC-DC module.
6. The integrated double-gun direct-current charger capable of scheduling at any power according to claim 5, is characterized in that an air inlet is formed in the middle of the right side of the charger, an air outlet is formed in the upper portion of the left side of the charger, cold air is sucked into the air inlet, and heated hot air passing through each charging module is blown out from the middle-upper portion of the left side of the front; the air inlet is provided with the ventilation tripe, the ventilation tripe is fixed in air inlet department through the pivot, the machine internal position that charges that the air inlet corresponds is provided with the module of charging for the ventilation tripe accessible pivot is rotatory to be opened, makes things convenient for the maintenance and the change of the module of charging.
7. The integrated double-gun direct-current charger capable of realizing any power scheduling as claimed in claim 6, wherein the charging module is an AC-DC charging module, the AC-DC charging module is connected with an AC input line and a DC output line, the AC input line is arranged at the lower part of the charger, the charging module is arranged at the middle part of the charger, and the DC output line is arranged at the upper part of the charger.
8. The integrated double-gun direct-current charger capable of scheduling any power according to claim 7 is characterized by comprising a front door, wherein a liquid crystal display screen, a charging management unit, a charging control panel, a monitoring panel, a card reader, an indicator lamp panel and an emergency stop button are arranged on the front door; the temperature and humidity sensor capable of being displayed is arranged in the middle of the front door, the temperature and humidity sensor is connected to the monitoring board through 485 signals, the heating and dehumidifying device is arranged on the middle lower portion of the front door, and the temperature and humidity condition inside the charger obtained through the monitoring board controls the starting and stopping of the heating and dehumidifying device so as to control the temperature and humidity inside the charger.
9. The integrated double-gun direct-current charger according to claim 8, wherein a gun hook is arranged at the middle upper part of the charger, an empty gun seat for containing a gun is arranged beside the gun hook, a sensor for feeding back whether the gun is reset is arranged in the empty gun seat, the sensor feeds back a dry node signal or a 485 signal to a monitoring board, and a liquid crystal display screen can display the reset state of the charging gun and play a voice prompt for requesting to reset the charging gun through a voice horn arranged on the front door.
10. A charging control method of an integrated double-gun direct current charger capable of being scheduled at any power is characterized by being applied to the integrated double-gun direct current charger capable of being scheduled at any power according to any one of claims 1 to 9, and the method comprises the following steps:
s1, sequentially arranging a plurality of groups of charging modules between two direct current buses, and connecting a power dispatching direct current contactor between adjacent charging modules;
s2, controlling the on-off state of the power scheduling DC contactor by using the power scheduling unit so as to control the number of charging modules mounted under each DC bus;
the step S2 specifically includes the following three operating states:
c1, only one of the two groups of bus direct current contactors is closed, the power scheduling unit controls the on-off state of each group of power scheduling direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the corresponding direct current bus and further control the power output by the direct current of the corresponding charging gun;
c2, the two groups of bus direct current contactors are attracted, at least one group of direct current contactors in the multiple groups of power dispatching direct current contactors is disconnected, the power dispatching unit controls the on-off state of each group of power dispatching direct current contactors according to the charging power requirement so as to control the number of charging modules mounted under the two direct current buses, and further control the power output by the two charging guns;
and C3, the two groups of bus direct current contactors are disconnected, and all the charging modules are shut down through the command of the power dispatching unit.
11. The charging control method of the integrated double-gun direct-current charger capable of scheduling at any power according to claim 10, wherein the step S1 specifically comprises: set gradually M group's the module of charging between two direct current buses, the first group module of charging is connected with first direct current bus, and the M group module of charging is connected with second direct current bus, and the Nth group module of charging passes through power scheduling direct current contactor and is connected with last group module of charging, and wherein, M is the natural number that is greater than 1, and N is the natural number that is greater than 1 and less than or equal to M.
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| JP5838006B1 (en) * | 2015-06-25 | 2015-12-24 | 東邦エネルギア株式会社 | Power distribution equipment |
| CN205846800U (en) * | 2016-07-28 | 2016-12-28 | 青岛华烁高科新能源技术有限公司 | A kind of many charging inlets DC charging motor with automatic power distribution function |
| CN206117265U (en) * | 2016-10-25 | 2017-04-19 | 北京电力自动化设备有限公司 | Machine charges with wide area input/output scope |
| CN107492943A (en) * | 2017-08-18 | 2017-12-19 | 上海电气集团股份有限公司 | Electric battery electrifier |
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