CN111332150A - Multi-terminal automobile charging system - Google Patents
Multi-terminal automobile charging system Download PDFInfo
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- CN111332150A CN111332150A CN201910781131.0A CN201910781131A CN111332150A CN 111332150 A CN111332150 A CN 111332150A CN 201910781131 A CN201910781131 A CN 201910781131A CN 111332150 A CN111332150 A CN 111332150A
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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
- B60L53/67—Controlling two or more charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
Abstract
The invention discloses a multi-terminal automobile charging system, which comprises a host unit for power distribution and a plurality of terminal units directly used for charging, wherein a master control module and a charging execution circuit are arranged between the host unit and the terminal units, the master control module is communicated with an external automobile to be charged and sends a charging instruction to the charging execution circuit according to charging power information required by the external automobile to be charged, and the charging execution circuit outputs electric energy with corresponding power to the corresponding terminal units according to the charging instruction of the master control module. The charging system disclosed by the invention can be used for charging through each charging terminal under the action of the master control module, and changing the charging power of each charging terminal according to the master control module, so that the effect of reasonably allocating electric energy is achieved, compared with the existing 'one-pile one-charging' circuit system of the charging pile, the charging utilization efficiency of a single charging pile is greatly improved, and the charging system is more convenient to use, more economic and efficient.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to a multi-terminal vehicle charging system.
Background
The electric automobile has no pollution, does not discharge carbon dioxide, does not have tail gas pollution, has the advantages of energy conservation and environmental protection for the common automobile with high emission at present, and is quite favorable for treating environmental pollution and reducing tail gas emission. As the number of the charging cars is increasing, the charging problem of the electric car is becoming one of the problems restricting the development of the electric car.
At present, the market is provided with a plurality of charging piles for solving the charging problem of the electric automobile. The existing charging system takes one charging pile as a charging terminal, namely, one charging pile can only be used for charging one electric automobile, under the condition of great charging demand, the structure of the system is relatively low-efficiency, if more automobiles need to be charged, a large amount of charging piles need to be built, the cost is greatly increased, and the economical efficiency is poor.
Disclosure of Invention
In view of the problem of low charging efficiency of the existing single charging pile, the invention provides a multi-terminal automobile charging system, which is basically designed in the way that a single charging pile is used as a main machine part for regulating, controlling and distributing charging, a plurality of charging terminals are connected to the main machine part, and an automobile is charged through the charging terminals, so that the charging of a plurality of electric automobiles by one charging pile can be realized. The technical problem to be solved by the invention is to provide a matched circuit system aiming at the design, so as to meet the requirement of realizing a plurality of charging terminals on one charging pile to charge more vehicles simultaneously, and improve the charging utilization efficiency of a single charging pile under the condition of unchanging the number of the charging piles.
The technical scheme of the invention is as follows: a multi-terminal automobile charging system comprises a host unit for power distribution and a plurality of terminal units directly used for charging, wherein a master control module and a charging execution circuit are arranged between the host unit and the terminal units, the master control module is communicated with an external automobile to be charged and sends a charging instruction to the charging execution circuit according to charging power information required by the external automobile to be charged, and the charging execution circuit outputs electric energy with corresponding power to the corresponding terminal units according to the charging instruction of the master control module;
the charging execution circuit comprises a trunk line and a plurality of branch lines connected in parallel, the trunk line is externally connected with a mains supply, and the branch lines correspond to the terminal unit one by one and comprise:
the branch line corresponding to each terminal unit is provided with a group of AC/DC converters, the AC/DC converters are used for converting alternating current into direct current, the change of the external charging output power of the terminal units is realized by configuring the output of the AC/DC, and the AC/DC converters are controlled by the master control module;
the first direct current contactor is bridged between every two branch lines, the output power of each terminal unit is changed by the first direct current contactor through the on-off of the first direct current contactor, and the first direct current contactor is controlled by the master control module;
and a group of second direct current contactors are arranged on a branch line corresponding to each terminal unit, the second direct current contactors control the electric energy output of the corresponding terminal units through the on-off of the second direct current contactors, and the second direct current contactors are controlled by the master control module.
Further, preferably, the master control module includes a charging control module, the charging control module acquires charging information of an external vehicle to be charged, and issues a first charging instruction according to the charging information, and the charging control module controls on/off of the second dc contactor.
Further, preferably, the general control module includes a power control module, the power control module is in communication connection with the charging control module and receives a first charging instruction from the charging control module, the power control module controls the AC/DC converter to configure output power according to the first charging instruction, and simultaneously issues a second charging instruction according to power configuration information.
Further, preferably, the general control module includes a circuit scheduling module, the circuit scheduling module is in communication connection with the power control module and receives a second charging instruction from the power control module, and the circuit scheduling module controls the on-off of the first dc contactor according to the second charging instruction to help the output of electric energy with corresponding power.
Further, preferably, each terminal unit is provided with the charging control module and the power control module, and the host unit is provided with the circuit scheduling module.
Further, preferably, each terminal unit is further provided with a monitoring module, and the monitoring module is in communication connection with the charging control module and the power control module.
Further, preferably, an alternating current energy meter is arranged on the trunk line, and the alternating current energy meter is in communication connection with the circuit scheduling module.
Further, preferably, a direct current electric energy meter is arranged on each branch line, and the direct current electric energy meter is in communication connection with the monitoring module.
Further, preferably, each set of the AC/DC converters includes at least two AC/DC converters.
Further, preferably, the branch lines are divided into at least two groups, and the on-off of each group is controlled through an alternating current contactor.
Has the advantages that: the charging execution circuit and the master control module are designed based on the design idea that one charging pile is matched with a plurality of charging terminals, so that the charging is performed through each charging terminal under the action of the master control module, the charging power of each charging terminal can be changed according to the master control module, the effect of reasonably allocating electric energy is achieved, and compared with the existing 'one pile and one charging' circuit system of the charging pile, the charging utilization efficiency of a single charging pile is greatly improved, the use is more convenient, and the charging execution circuit is more economical and efficient.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the arrangement structure of the master control module and the charging execution circuit in the invention.
Fig. 3 is a schematic structural diagram of a charge execution circuit according to an embodiment of the invention.
Fig. 4 is a circuit diagram of a charge execution circuit according to an embodiment of the invention.
Fig. 5 is an enlarged schematic view of portion I of fig. 4.
Fig. 6 is an enlarged schematic view of section II in fig. 4.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1 and 2, a multi-terminal automobile charging system includes a host unit for power distribution and a plurality of terminal units directly used for charging, a master control module and a charging execution circuit are disposed between the host unit and the terminal units, the master control module communicates with an external automobile to be charged and sends a charging instruction to the charging execution circuit according to charging power information required by the external automobile to be charged, and the charging execution circuit outputs electric energy of corresponding power to the corresponding terminal unit according to the charging instruction of the master control module;
the charging execution circuit comprises a trunk line and a plurality of branch lines connected in parallel, the trunk line is externally connected with a mains supply, and the branch lines correspond to the terminal unit one by one and comprise:
the branch line corresponding to each terminal unit is provided with a group of AC/DC converters, the AC/DC converters are used for converting alternating current into direct current, the change of the external charging output power of the terminal units is realized by configuring the output of the AC/DC, and the AC/DC converters are controlled by the master control module;
the first direct current contactor is bridged between every two branch lines, the output power of each terminal unit is changed by the first direct current contactor through the on-off of the first direct current contactor, and the first direct current contactor is controlled by the master control module;
and a group of second direct current contactors are arranged on a branch line corresponding to each terminal unit, the second direct current contactors control the electric energy output of the corresponding terminal units through the on-off of the second direct current contactors, and the second direct current contactors are controlled by the master control module.
In the basic scheme of the invention, the host unit corresponds to the entity part of the charging pile, the terminal unit is connected out of the host unit and is connected with the control circuit through each electric circuit, and the charging of a plurality of cars to be charged by one charging pile is realized through mutual matching on the whole. The master control module is an electronic circuit functional module, can communicate with an automobile to be charged externally, acquires individual information such as VIN code and corresponding charging power of the automobile to be charged, and sends a charging instruction to the internal charging execution circuit according to the information. Because the design of the charging execution circuit needs to be faced with a plurality of charging terminals to supply power to the plurality of charging terminals, and also relates to the allocation of the charging power of a single charging terminal, a master control module is also needed to control the power allocation of a single terminal unit circuit on the charging execution circuit. The charging execution circuit charges the commercial power into the automobile to be charged. The AC/DC converter converts the AC power into the DC power to satisfy the charging of the corresponding terminal unit, and since the charging operation is realized by the terminal unit in the actual charging operation, a group of AC/DC converters is correspondingly arranged for each terminal unit. Since each terminal unit is charged only by its own branch circuit, the power output power is limited (only the power that can be output by its corresponding AC/DC converter can be output), so-called power allocation is to connect other branch circuits to the branch circuit to be output to realize the loading of power, and thus the loading of output power is realized by the bridge connection of the first DC contactor by two circuits corresponding to the terminal unit. The main control module controls the corresponding first direct current contactor to realize the conduction of the corresponding circuit, and loads the power which can be output by other branch circuits to the branch circuit of the terminal unit to be charged so as to output the power meeting the requirement. The second dc contactor is configured to control on/off of the circuit output of a single terminal unit, for example, after the circuits of two terminal units are turned on by the first dc contactor, only one of the circuits can realize power output (i.e., the selected terminal unit for charging) when the second dc contactor is turned on, and the other circuit cannot realize power output when the second dc contactor is not turned on, so that the power loading function can be completely realized.
The master control module in this scheme is an electronic module, and has a communication function (communicating with an external automobile to be charged and communicating with each functional submodule inside the automobile) and a function of controlling a strong current (controlling a charging execution circuit through an electrical element), and related principles and basic knowledge thereof are well known to those skilled in the art, and are not described herein again, and are designed by using related existing knowledge based on the knowledge known to those skilled in the art, and all that satisfies the general idea of this scheme are the master control module in this scheme.
Preferably, the master control module comprises a charging control module, the charging control module acquires charging information of an external automobile to be charged and issues a first charging instruction according to the charging information, and the charging control module controls the second direct current contactor to be switched on and off. The charging control module may be a circuit board provided with a processor and a communication module, for example, the charging control module may communicate with an automobile to be charged through a CAN bus, transmit obtained information to the processor through the communication module for processing, and then send a first charging instruction formed by operation by the processor.
Preferably, the general control module includes a power control module, the power control module is in communication connection with the charging control module and receives a first charging instruction from the charging control module, and the power control module controls the AC/DC converter to configure output power according to the first charging instruction and issues a second charging instruction according to power configuration information. The power rate control module may be a circuit board provided with a processor, a communication module, and a circuit execution module, for example, the circuit board communicates with the charging control module through a CAN bus, receives the first charging instruction, performs calculation according to the first charging instruction, and sends an instruction for performing on/off to the AC/DC converter through the circuit execution module, and sends a second charging instruction with power information through the CAN bus after the calculation processing by the processor.
Preferably, the master control module comprises a circuit scheduling module, the circuit scheduling module is in communication connection with the power control module and receives a second charging instruction from the power control module, and the circuit scheduling module controls the on-off of the first direct current contactor according to the second charging instruction to help the electric energy output of corresponding power. When the circuit scheduling module is implemented specifically, the circuit scheduling module may be a circuit board provided with a processor and a circuit execution module, for example, after receiving the second charging instruction, the processor and the circuit execution module control on/off of the first dc contactor.
Preferably, each terminal unit is provided with the charging control module and the power control module, and the host unit is provided with the circuit scheduling module. The arrangement mode facilitates communication with the automobile more conveniently in specific implementation.
Preferably, each terminal unit is further provided with a monitoring module, and the monitoring module is in communication connection with the charging control module and the power control module. The monitoring module is also a circuit board when in specific use, is used for acquiring corresponding information from the charging control module and the power control module to realize monitoring, and can be connected with other modules, such as a display module, a read-write module and the like.
Preferably, an alternating current electric energy meter is arranged on the trunk line, and the alternating current electric energy meter is in communication connection with the circuit scheduling module. The alternating current electric energy meter is arranged to monitor the electric quantity output by alternating current and feed back the electric quantity information.
Preferably, each branch line is provided with a direct current electric energy meter, and the direct current electric energy meter is in communication connection with the monitoring module. The direct current electric energy meter is arranged to monitor the direct current output electric quantity of each terminal unit and feed back the electric quantity information.
Preferably, each set of the AC/DC converters includes at least two AC/DC converters. The configuration of the output is achieved by providing at least two AC/DC converters.
Preferably, the branch lines are divided into at least two groups, and each group is controlled to be switched on and switched off through an alternating current contactor. And under the condition of more branches and the like, at least two groups are arranged to facilitate control and management.
On the basis of the above embodiment, another example of the total output 400KW is given, which is as follows.
Referring to fig. 3-6, the connections between the circuits in fig. 5 and 6 are shown as labeled numbers. The external commercial power is 380V in this embodiment, and twenty AC/DC converters are provided in the charging execution circuit, each with 20KW output power. Twenty AC/DC converters are divided into two groups in total. After the charging execution circuit is externally connected with a mains supply, firstly, an incoming line switch QF1 using a residual current operated circuit breaker is arranged, then the circuit is divided into two paths, each path is connected to an alternating current contactor KM1 and a alternating current contactor KM2, and five output paths of the charging circuit of each alternating current contactor respectively correspond to five terminal units, wherein the total ten charging circuits are a terminal 1, a terminal 2 and a terminal 3 … … terminal 10 in the figure. Each terminal unit is correspondingly provided with a charging gun, namely a gun A, a gun B and a gun C … … J in the figure. Each group of circuits connected out of the alternating current contactors KM1 and KM2 are connected into a group of AC/DC converters, then each group of circuits are bridged pairwise through the first direct current contactor, and then each group of circuits are provided with the second direct current contactor and are finally connected to the charging guns of the corresponding terminals. In this embodiment, the charging control module corresponds to a charging panel, the power control module corresponds to a power panel, the monitoring module corresponds to a monitoring panel, the charging panel and the power panel are disposed on the monitoring panel, and the monitoring panel is provided with various communication interfaces including a serial port and a CAN bus. In this embodiment, the dc current meter is connected to the monitor panel, a charging confirmation line is further connected between the charging panel and the charging gun, and an insulation detection box is connected to each branch line and also connected to the charging panel. The communication between the charging panel and the automobile is also realized through a CAN bus arranged between the charging gun and the monitoring panel.
As shown in fig. 3, during a specific use, for example, an electric vehicle is charged by an a-gun, and the required charging power is 20KW, when the electric automobile is connected with the system through the gun A, a request of 20KW of charging power is sent to the charging panel through the monitoring panel, the charging panel controls the conduction of a second direct current contactor corresponding to the gun A, the charging panel sends a first charging instruction comprising power information to the power panel, the power panel sends a second charging instruction obtained after processing to the dispatching panel, meanwhile, a group of AC/DC converters (two in the embodiment) corresponding to the gun A line is switched on according to the power information, and the dispatching board controls to switch on the AC contactor KM1 according to the charging command, and all first direct current contactors do not conduct, so that the conduction of the charging circuit on the gun A is realized, and the electric automobile is charged. For example, an electric automobile is charged through an H gun, the required charging power is 80KW, a charging request with the power of 80KW is sent to the system through the H gun, an alternating current contactor KM2 is conducted by a dispatching board, a second direct current contactor corresponding to the H gun is controlled to be conducted by an electric board, a first charging instruction comprising power information is sent to a power board by the charging board, the second charging instruction obtained after processing is sent to the dispatching board by the power board, two corresponding AC/DC converters on the H gun are conducted by the power board according to the power information, two AC/DC converters (such as GF) of any one circuit of an F gun, a G gun, an I gun and a J gun are conducted, a first direct current contactor between the H gun and the GF gun is also controlled and conducted, the two circuits are connected in a bridging mode, and thus, the electric energy with the power of 80KW can be output to the H gun, and the automobile is charged.
As shown in fig. 3, a lightning protection switch QF2 and a control circuit switch QF3 are also provided on the main circuit of the charging execution circuit.
Based on the above, a charging method is also provided, which comprises the following steps:
s1, connecting a charging socket on an automobile to be charged with a selected charging gun, and sending information of the automobile to be charged to a charging control module through the charging gun;
s2, the charging control module sends a first charging instruction to the power control module according to the obtained information of the automobile to be charged, the alternating current contactor is conducted under the condition of the alternating current contactor to realize charging, and meanwhile the charging control module controls to conduct a second direct current contactor corresponding to the selected charging gun;
s3, the power control module configures corresponding charging power by controlling the AC/DC converter according to the obtained first charging instruction, meanwhile, the power control module sends a second charging instruction with charging power configuration information to the circuit scheduling module, the circuit scheduling module controls the first direct current contactor to be conducted according to the received charging instruction, and the alternating current contactor is conducted under the condition of the alternating current contactor to realize charging;
s4, the monitoring circuit board monitors the charging electric quantity through the alternating current electric energy meter and the direct current electric energy meter, and when the charging electric quantity reaches an expected value, the monitoring circuit board sends a charging stopping instruction to the charging control module;
and S5, finishing charging.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A multi-terminal automobile charging system is characterized by comprising a host unit for power distribution and a plurality of terminal units directly used for charging, wherein a master control module and a charging execution circuit are arranged between the host unit and the terminal units, the master control module is communicated with an external automobile to be charged and sends a charging instruction to the charging execution circuit according to charging power information required by the external automobile to be charged, and the charging execution circuit outputs electric energy with corresponding power to the corresponding terminal unit according to the charging instruction of the master control module;
the charging execution circuit comprises a trunk line and a plurality of branch lines connected in parallel, the trunk line is externally connected with a mains supply, and the branch lines correspond to the terminal unit one by one and comprise:
the branch line corresponding to each terminal unit is provided with a group of AC/DC converters, the AC/DC converters are used for converting alternating current into direct current, the change of the external charging output power of the terminal units is realized by configuring the output of the AC/DC, and the AC/DC converters are controlled by the master control module;
the first direct current contactor is bridged between every two branch lines, the output power of each terminal unit is changed by the first direct current contactor through the on-off of the first direct current contactor, and the first direct current contactor is controlled by the master control module;
and a group of second direct current contactors are arranged on a branch line corresponding to each terminal unit, the second direct current contactors control the electric energy output of the corresponding terminal units through the on-off of the second direct current contactors, and the second direct current contactors are controlled by the master control module.
2. A multi-terminal car charging system as claimed in claim 1, wherein: the master control module comprises a charging control module, the charging control module acquires charging information of an external automobile to be charged and issues a first charging instruction according to the charging information, and the charging control module controls the second direct current contactor to be switched on and off.
3. A multi-terminal car charging system as claimed in claim 2, wherein: the master control module comprises a power control module which is in communication connection with the charging control module and receives a first charging instruction from the charging control module, and the power control module controls the AC/DC converter to configure output power according to the first charging instruction and issues a second charging instruction according to power configuration information.
4. A multi-terminal car charging system as claimed in claim 3, wherein: the master control module comprises a circuit scheduling module which is in communication connection with the power control module and receives a second charging instruction from the power control module, and the circuit scheduling module controls the on-off of the first direct current contactor according to the second charging instruction so as to help electric energy output of corresponding power.
5. The multi-terminal car charging system according to claim 4, wherein: each terminal unit is provided with the charging control module and the power control module, and the host unit is provided with the circuit scheduling module.
6. The multi-terminal car charging system according to claim 5, wherein: each terminal unit is also provided with a monitoring module which is in communication connection with the charging control module and the power control module.
7. The multi-terminal car charging system according to claim 6, wherein: and an alternating current electric energy meter is arranged on the trunk line and is in communication connection with the circuit scheduling module.
8. The multi-terminal car charging system according to claim 7, wherein: and each branch line is provided with a direct current electric energy meter which is in communication connection with the monitoring module.
9. A multi-terminal car charging system as claimed in claim 1, wherein: each set of the AC/DC converters includes at least two AC/DC converters.
10. A multi-terminal car charging system as claimed in claim 1, wherein: the branch lines are divided into at least two groups, and the on-off of each group is controlled through an alternating current contactor.
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| CN201910781131.0A CN111332150A (en) | 2019-08-22 | 2019-08-22 | Multi-terminal automobile charging system |
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| CN201910781131.0A CN111332150A (en) | 2019-08-22 | 2019-08-22 | Multi-terminal automobile charging system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020213788A1 (en) | 2020-11-03 | 2022-05-05 | Siemens Aktiengesellschaft | Ring Switching Matrix |
| DE102020134458A1 (en) | 2020-12-21 | 2022-06-23 | innogy eMobility Solutions GmbH | Arrangement for integration into a charging device for at least one electric vehicle |
| DE102021212734A1 (en) | 2021-11-11 | 2023-05-11 | Mahle International Gmbh | Charging station for charging batteries, in particular for motor vehicles |
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| DE102020134458A1 (en) | 2020-12-21 | 2022-06-23 | innogy eMobility Solutions GmbH | Arrangement for integration into a charging device for at least one electric vehicle |
| DE102021212734A1 (en) | 2021-11-11 | 2023-05-11 | Mahle International Gmbh | Charging station for charging batteries, in particular for motor vehicles |
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