CN108215901B - Charger combination method capable of flexibly configuring functions - Google Patents
Charger combination method capable of flexibly configuring functions Download PDFInfo
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- CN108215901B CN108215901B CN201711492281.7A CN201711492281A CN108215901B CN 108215901 B CN108215901 B CN 108215901B CN 201711492281 A CN201711492281 A CN 201711492281A CN 108215901 B CN108215901 B CN 108215901B
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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
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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
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A charger combination method capable of flexibly configuring functions relates to the technical field of electric vehicle charging. The method comprises the following steps: the outputs of the combined chargers are connected in parallel, and then the mode A charger can be configured; the outputs of the combined chargers are connected in series, and then the mode B charger can be configured; both the mode A and the mode B can implement one machine for multiple charging; the mode A has a queuing charging function, and the charger can perform charging operation on a plurality of electric vehicles according to a specified sequence; the mode B has the function of automatic power distribution, and the charger can distribute the idle power units to the power units which are being charged; and the outputs of the mode A charger and the mode B charger are connected in parallel, so that the full-range power automatic distribution function of the matrix type charger is realized. The invention can realize the combined, tailorable and cordwood functional configuration scheme, effectively arrange and combine, and improve the flexibility of the function configuration of the charger.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to a charger combination method capable of flexibly configuring functions.
Background
With the popularization of new energy electric vehicles, the direct current charger equipment is widely applied to charging stations near expressways, traffic hubs and residential quarters due to the characteristics of high power density, high charging speed, multiple functional styles and the like.
At present, a direct current charger mostly adopts a one-machine one-charging mode, namely, one charger only charges one electric vehicle. The charger of the 'one machine and one charging' style is suitable for private car owners to use. However, for the application scenarios that one charger charges a plurality of electric vehicles at the same time, such as city public transportation groups, logistics transportation companies, charging station operators and the like, the charger in the form of one charger with multiple charging modes is more suitable.
In some application scenarios of "one electric vehicle with multiple charging", the charger should be configured with a "queuing charging" function, that is, the charger can perform charging operations for multiple electric vehicles according to a specified sequence. In other application scenarios of "one battery with multiple batteries", in order to increase the total capacity utilization rate of the charger, the charger should be configured with an "automatic power allocation" function, that is, the charger can allocate idle power units to the power units being charged.
The existing charger with the mode of one charger and multiple chargers has the following problems.
Firstly, the requirements of users on the function configuration of the charger are increasingly diversified, so that the function design of the charger is difficult to realize combination, cutting and modularization. The chargers with different function configurations lack modular system design, cannot be effectively arranged and combined by using the function configurations of the existing chargers, and have low flexibility in the aspect of function configuration.
Secondly, the automatic power distribution function of the charger usually requires more high-voltage direct-current contactors. The problems of material cost increase, complex control algorithm, high maintenance difficulty and the like are caused by adopting more high-voltage direct-current contactors.
Disclosure of Invention
The invention provides a charger combination method capable of being flexibly configured with functions, which adopts a design scheme of cutting and building blocks, can flexibly configure various charger functions in a mode of charging more than one charger, and improves the universality and expansibility of a charger solution.
The purpose of the invention can be realized in such a way that the charger combination method capable of flexibly configuring the functions comprises the following steps:
B. the outputs of the combined chargers are connected in parallel, and then the mode A charger can be configured; the outputs of the combined chargers are connected in series, and then the mode B charger can be configured; both the mode A and the mode B can implement one machine for multiple charging; the charging machine is connected with a plurality of contactors in parallel, each contactor is connected with a charging gun, the mode A multi-gun queuing charging function is realized, and the charging machine can perform charging operation on a plurality of electric vehicles according to a specified sequence; the mode B has the function of automatic power distribution, and the charger can distribute the idle power units to the power units which are being charged; connecting a plurality of combined chargers in parallel, wherein the contact devices connected between the combined chargers form annular connection, and realizing the multi-gun queuing charging function in the mode B; when any charging gun is idle, the charging power unit to which the charging gun belongs dynamically distributes power to other charging guns for use through the contactor;
B. the method comprises the following steps that the outputs of a mode A charger and a mode B charger are connected in parallel, one or a plurality of charging power units of the mode A are used as sharing units, and the sharing units are correspondingly connected to the mode B chargers through a plurality of contactors; the charging power unit in the mode B keeps the original automatic power distribution function unchanged; the full-range power automatic distribution function of the matrix type charger is realized.
The combined charger capable of flexibly configuring functions provided by the invention can realize a combined, tailorable and cordwood functional configuration scheme aiming at increasingly diversified functional requirements of the charger. The function configuration of the combined charger is effectively arranged and combined, so that the flexibility of the function configuration of the charger can be improved.
Drawings
FIG. 1 is a schematic diagram of a combined charger according to a preferred embodiment of the present invention;
FIG. 2 is a diagram of a mode A implementation of a dual/multi-gun queuing charging scheme in accordance with a preferred embodiment of the present invention;
FIG. 3 is a diagram of a mode B implementation of the dual-gun power auto-distribution scheme in accordance with a preferred embodiment of the present invention;
FIG. 4 is a diagram of a mode B implementation of the four-gun power auto-distribution scheme in accordance with the preferred embodiment of the present invention;
FIG. 5 is a diagram of a mode A and mode B combined four-gun charging scheme in accordance with a preferred embodiment of the present invention;
FIG. 6 is a diagram of a mode A and mode B combined multi-gun charging scheme in accordance with a preferred embodiment of the present invention;
FIG. 7 is a schematic diagram of a matrix type quadruple gun charger according to a preferred embodiment of the present invention;
fig. 8 is a diagram of a matrix assembly scheme of the prior art.
Detailed Description
The present invention will be further described with reference to the following examples.
A charger combination method capable of flexibly configuring functions comprises the following steps:
A. the outputs of the combined chargers are connected in parallel, and then the mode A charger can be configured; the outputs of the combined chargers are connected in series, and then the mode B charger can be configured; both the mode A and the mode B can implement one machine for multiple charging; the mode A has a queuing charging function, and the charger can perform charging operation on a plurality of electric vehicles according to a specified sequence; the mode B has the function of automatic power distribution, and the charger can distribute the idle power units to the power units which are being charged;
B. and the outputs of the mode A charger and the mode B charger are connected in parallel, so that the full-range power automatic distribution function of the matrix type charger is realized.
In this embodiment, the combined charger is composed of 1 charging power unit and 2 high-voltage direct-current contactors, as shown in fig. 1. The direction of the output power of the power unit can be controlled by the contactor 1# and the contactor 2 #.
The charger is connected with a plurality of contactors in parallel, and each contactor is connected with a charging gun to realize the mode A multi-gun queuing charging function. As shown in FIG. 2, a dual/multi-gun queuing charging function can be implemented using the mode A scheme.
Mode a enables dual/multi-gun queued charging, as shown in fig. 2. And the contactor 1# and the contactor 2# are connected to the vehicle 1# and the electric vehicle 2# through charging guns, so that a double-gun queuing charging scheme can be realized. The charger can sequentially perform charging operation for 2 electric vehicles according to a designated sequence. By analogy, on the basis of the scheme of the combined charger, the multi-gun queuing charging scheme can be realized through proper expansion.
Connecting a plurality of combined chargers in parallel, wherein the contact devices connected between the combined chargers form annular connection, and realizing the multi-gun queuing charging function in the mode B; when any charging gun is idle, the charging power unit to which the charging gun belongs dynamically distributes power to other charging guns for use through the contactor. As shown in fig. 3, the dual-gun power automatic distribution function can be realized by adopting the scheme of the mode B; as shown in FIG. 4, the mode B scheme can be used to realize the multi-gun power automatic distribution function.
Mode B, as shown in fig. 3, enables dual-gun power auto-allocation. And 2, connecting the combined chargers in parallel, and cutting the contactor 4 #. When the charging gun 1# is idle, the charging power unit to which the charging gun belongs can dynamically distribute power to the charging gun 2# through the contactor 2 #. Similarly, when the charging gun 2# is idle, the charging power unit to which the charging gun belongs can dynamically distribute power to the charging gun 1# through the contactor 2 #. And in the mode B, the 2 combined chargers are connected in parallel and cut, so that the function of automatic double-gun power distribution is realized.
Mode B enables four-gun power auto-allocation as shown in fig. 4. 4 combined chargers are connected in parallel, and form a scheme of a ring-shaped contactor through contactors 2#, 4#, 6# and 8 #. When any charging gun is idle, the charging power unit to which the charging gun belongs can dynamically distribute power to other charging guns for use through the annular contactor. In the mode B, 4 combined chargers form an annular contactor, so that the function of automatically distributing the four-gun power is realized.
The mode A and the mode B are used for deep combination, the function of 'full-range power automatic distribution' of the charger can be achieved, and as shown in fig. 5, 6 and 7, the deep combination scheme effectively reduces the using number of the high-voltage direct-current contactors. The universality and the expansibility of a charger system are improved, and a highly flexible charging function configuration scheme is realized.
Taking the charging power unit of one mode A as a sharing unit, and respectively and correspondingly accessing the charging power unit of one mode A to a plurality of mode B chargers through a plurality of contactors; the charging power unit in the mode B keeps the original automatic power distribution function unchanged.
As shown in fig. 5, combining mode a and mode B achieves four-gun charging. The charging power unit of the mode A is used as a 'sharing unit' and is connected to the four-gun charger of the mode B through the contactors 9#, 10#, 11#, and 12 #. And the charging power unit in the mode B keeps the original automatic power distribution function unchanged, and is added into the mode A on the basis. The scheme of the deep combined charger further improves the automatic power distribution flexibility and the dynamic adjustment range of the four-gun charger.
By analogy, mode a and mode B are further combined to achieve multi-gun charging, as shown in fig. 6. The multi-gun queuing charging scheme realized in the original mode A is used as a 'shared unit', and is connected into the multi-gun charger in the mode B through contactors 2n +1#, 2n +2#, and 2n +3# … … 3n #. Taking the charging power units of the mode A as sharing units, and respectively and correspondingly accessing the charging power units to the mode B chargers through a plurality of contactors; the charging power unit in the mode B keeps the original automatic power distribution function unchanged.
As shown in fig. 7, mode a and mode B are depth-combined. By adopting the combined charger with a plurality of modes A and accessing the multi-gun charger with a mode B through the high-voltage contactor, the full-range dynamic power regulation of the traditional matrix type charger can be realized, and the number of contactors can be greatly saved
Taking a 120kW four-gun charger as an example, where each charging power unit has 15kW, 8 charging power units are needed. If the matrix charger is adopted, as shown in fig. 8, the number of the high-voltage contactors needs to be 8 × 4+4 — 36, and considering that both the positive electrode and the negative electrode of the battery pack need contactors, the total number of the high-voltage contactors needs to be (8 × 4+4) × 2 — 72; if the deep combination type scheme provided by the present invention is adopted, only 4 a-mode chargers need to be connected to 1B-mode charger, as shown in fig. 7, when n is 4, the number of high-voltage contactors needs to be 4 × 4+4 × 2 ═ 24, and considering that both the positive electrode and the negative electrode of the battery pack need to be contactors, the total number of high-voltage contactors needs to be (4 × 4+4 × 2) × 2 ═ 48. Therefore, the number of the contactors can be greatly saved by the deep combined charger scheme.
The combined charger capable of being flexibly configured with functions adopts a design scheme of cutting and building blocks, can flexibly configure the functions of various chargers in a mode of charging more than one charger, and improves the universality and expansibility of a charger solution. By adopting the scheme of the combined charger, the use number of the high-voltage direct-current contactors can be effectively reduced, and the technical problems of the traditional matrix type charger in the aspects of material, control, maintenance and the like due to the automatic power distribution function are solved.
Claims (1)
1. A charger combination method capable of flexibly configuring functions is characterized by comprising the following steps:
A. the outputs of the combined chargers are connected in parallel, and then the mode A charger can be configured; the outputs of the combined chargers are connected in series, and then the mode B charger can be configured; both the mode A and the mode B can implement one machine for multiple charging; the charging machine is connected with a plurality of contactors in parallel, each contactor is connected with a charging gun, the mode A multi-gun queuing charging function is realized, and the charging machine can perform charging operation on a plurality of electric vehicles according to a specified sequence; the mode B has the function of automatic power distribution, and the charger can distribute the idle power units to the power units which are being charged; connecting a plurality of combined chargers in parallel, wherein the contact devices connected between the combined chargers form annular connection, and realizing the multi-gun queuing charging function in the mode B; when any charging gun is idle, the charging power unit to which the charging gun belongs dynamically distributes power to other charging guns for use through the contactor;
B. the method comprises the following steps that the outputs of a mode A charger and a mode B charger are connected in parallel, one or a plurality of charging power units of the mode A are used as sharing units, and the sharing units are correspondingly connected to the mode B chargers through a plurality of contactors; the charging power unit in the mode B keeps the original automatic power distribution function unchanged; the full-range power automatic distribution function of the matrix type charger is realized.
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| CN201711492281.7A CN108215901B (en) | 2017-12-30 | 2017-12-30 | Charger combination method capable of flexibly configuring functions |
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| CN108215901B true CN108215901B (en) | 2021-04-27 |
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| CN112421604A (en) * | 2020-12-10 | 2021-02-26 | 深圳科士达科技股份有限公司 | Charging device of interconnection |
| CN113595184A (en) * | 2021-07-27 | 2021-11-02 | 陕西绿能电子科技有限公司 | Annular charging system, charging control method, computer device and storage medium |
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Effective date of registration: 20230731 Address after: 518000 No.13, Keji North 1st Road, North District, high tech Industrial Park, Nanshan District, Shenzhen City, Guangdong Province Patentee after: CYG SUNRI Co.,Ltd. Patentee after: Changyuan Shenrui Energy Technology Co.,Ltd. Address before: 518057 6, No. 3 Langshan Road, North Nanshan District high tech Industrial Park, Shenzhen, Guangdong Patentee before: CYG SUNRI Co.,Ltd. |