CN113580985A - Regular polygon preemptive electric vehicle charging circuit and method for distributing power according to needs and charging pile - Google Patents
Regular polygon preemptive electric vehicle charging circuit and method for distributing power according to needs and charging pile Download PDFInfo
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- CN113580985A CN113580985A CN202110820911.9A CN202110820911A CN113580985A CN 113580985 A CN113580985 A CN 113580985A CN 202110820911 A CN202110820911 A CN 202110820911A CN 113580985 A CN113580985 A CN 113580985A
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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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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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
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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
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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
The invention belongs to the technical field of charging equipment, and discloses a regular polygon preemptive type electric vehicle charging circuit and method for distributing power as required and a charging pile. When a plurality of electric vehicles are charged simultaneously, the use of the contact sets is reduced, the circuit design cost and the structural complexity are reduced, and the requirement on the space of the box body is saved under the condition that all the charging modules can be mutually borrowed. The power is distributed according to the requirement, the power is allocated according to the real-time power of the electric automobile, the charging utilization rate of the charging module is greatly improved, and the charging economic benefit is obviously improved. The preemptive design of the charging modules can ensure that each charging device can be distributed to the lowest group of charging modules, and the overall use efficiency of the charging device is obviously improved.
Description
Technical Field
The invention belongs to the technical field of charging equipment, and particularly relates to a charging circuit, a charging method and a charging pile for allocating power to an electric vehicle in a regular polygon preemptive mode according to needs.
Background
At present, along with the development of electric automobiles, charging facilities are gradually popularized, and charging equipment with different powers and single guns or multiple guns is developed according to different application scenes; in the present stage, the main power scheduling circuit design in the high-power multi-gun charging device is mainly based on a bus structure, a ring structure and a matrix structure.
The power scheduling operation for each architecture is explained as follows:
the bus structure circuit is the simplest in design, and when N groups of charging modules exist, the borrowing of all the modules can be completed only by N-1 contact groups; however, when two or more electric vehicles are charged simultaneously, the charging modules which are not adjacent and do not work can not be borrowed, the waste of the charging modules can be caused, the charging time of the electric vehicle is prolonged, and the charging efficiency and the economic benefit are reduced.
The design of the annular structure circuit is optimized on the basis of a bus structure circuit, and when N groups of charging modules exist, the borrowing of all the modules can be completed only by N contact groups; and meanwhile, when two electric automobiles are charged, the charging modules which are not adjacent and do not work can be borrowed and transferred. However, the problem of power waste caused by charging of two vehicles is solved, when three or more electric vehicles are charged, the problem that the charging modules which are not adjacent and do not work cannot be borrowed still occurs, the charging modules are wasted, the charging efficiency is low, and the economic benefit is not remarkably improved.
The matrix structure circuit is another brand new circuit design, is different from a bus structure and a ring structure, and can completely solve the problem that a plurality of electric vehicles are charged simultaneously and non-adjacent and non-working charging modules cannot be borrowed. Because the matrix structure circuit design philosophy is N group charging module, connects gradually every charging device respectively, has M rifle equipment that charges promptly, every rifle equipment that charges directly connects N group charging module. Although the power borrowing problem of the bus and the annular structure can be solved through the circuit design of the matrix structure, the circuit structure design is complex, N multiplied by M contact groups are needed, the design cost of the charging equipment is greatly deepened, and secondly, the contact equipment is limited by the use times, so that the maintenance cost is greatly increased in later maintenance due to the large number of the contact equipment. In summary, there is no good design scheme for a power borrowing circuit structure that can realize a full borrowing charging module, reduce design cost, improve charging efficiency, and improve charging efficiency.
Through the above analysis, the problems and defects of the prior art are as follows: in the prior art, when a plurality of electric automobiles are charged, the problem that non-adjacent and non-working charging modules cannot be borrowed easily occurs, so that the waste of the charging modules is caused, the charging efficiency is low, and the economic benefit is not remarkably improved; and secondly, the structural complexity of the current transmission circuit is reduced, the use quantity of related electrical equipment is reduced, the electrical safety protection of the circuit can be enhanced in the original space, and the operation and maintenance cost is reduced.
The difficulty in solving the above problems and defects is:
the design of the current transmission circuit needs to reduce cost and improve safety on the premise of considering the realization of functions; meanwhile, different power scheduling algorithms are provided according to different charging scenarios.
The significance of solving the problems and the defects is as follows:
on the premise of ensuring the charging safety, the utilization rate of the charging module is improved, the charging standby power consumption is reduced, and the energy is saved; meanwhile, the new circuit structure design reduces the use amount of electrical equipment and avoids unnecessary waste.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a charging circuit, a charging method and a charging pile for allocating power to an equilateral polygon preemptive electric vehicle according to needs.
The invention is realized in this way, a regular polygon preemptive electric vehicle power-distributing charging method according to needs, comprising:
every two of N (number of regular polygon edges) or groups of charging modules are interconnected in pairs according to a regular polygon structure, when a plurality of electric vehicles are charged simultaneously, each electric vehicle occupies the directly connected charging module and borrows other modules according to required power until no charging module is borrowed;
if the required power is reduced, returning the corresponding debit charging module.
Further, before the vehicle is not charged, the charging modules are grouped according to the numbers of 1-N, the vehicle adopts a state polling strategy for all the charging module groups in the charging process, judges which charging module groups are occupied by other vehicles according to the fed back state information, and judges whether the charging module groups need to be borrowed or returned according to the real-time required power of the vehicle; if the group of charging modules needs to be returned, the higher numbered group is returned first.
Furthermore, the module group is borrowed and adjusted from low to high (module grouping numbers 1-N), and the module group is returned and adjusted from high to low (module grouping numbers 1-N).
Furthermore, all vehicles compete to transfer a certain group of charging modules at the same time, the competition mode adopts a priority mode, and when the vehicles are not charged, the charging modules can be charged according to the number of charging guns1#、2#、3#～N#And (3) coding the gun number, wherein the lower the default gun number is, the higher the priority level is, when competing for a certain group of charging modules, the charging gun number used by the vehicle is read firstly, then the read gun numbers are arranged in an ascending order, and finally the vehicle with the lowest charging gun number in the arrangement is selected to borrow the group of charging modules.
Furthermore, in the connection of every two of N groups of charging modules in a regular polygon structure, N x (N-1)/2 groups of contactors are correspondingly adopted, and each charging module (group) is connected with a charging device.
Another object of the present invention is to provide a charging circuit for demand-based power distribution of a regular polygon preemptive electric vehicle, comprising: and the charging modules are connected with each other in pairs according to the regular polygon structure.
Further, the charging module is connected with the charging device through a power cable.
Further, a contact set is arranged between every two interconnected charging modules.
The invention also aims to provide an application of the regular polygon preemptive electric vehicle power-on-demand distribution charging method in charging piles with different powers and with single gun or multiple guns.
The invention also aims to provide an electric automobile, which implements the regular polygon preemptive electric automobile demand power distribution charging method.
By combining all the technical schemes, the invention has the advantages and positive effects that:
when a plurality of electric vehicles are charged simultaneously, the invention can reduce the use of the contactor group compared with a matrix type mechanism under the condition that all charging modules can be borrowed, for example, the cost table, the complexity and the box body space requirement of circuit design are reduced (see the attached table 1. the invention compares the regular polygon preemption type with the matrix type).
The power is distributed according to the requirement, the power is allocated according to the real-time power of the electric automobile, the charging efficiency of the charging module is greatly improved, and the economic benefit of charging is obviously improved (see the attached table 1 for details, the regular polygon preemption type and the matrix type of the invention).
The preemptive design of the charging modules can ensure that each charging device can be distributed to the lowest one or group of charging modules, and the charging devices can be effectively utilized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a charging circuit for allocating power as required for a regular polygon preemptive electric vehicle according to an embodiment of the present invention.
In the figure: 1. a charging device; 2. a charging module; 3. a set of contacts; 4. an electric power cable.
Fig. 2 is a schematic structural diagram of a bus structure technology according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a ring structure technology provided by an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a matrix structure technique provided in an embodiment of the present invention.
Fig. 5 is a schematic diagram of a logic flow structure provided in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides a regular polygon preemptive electric vehicle power distribution charging circuit according to needs, and the invention is described in detail by combining the transformation of a certain charging station of a company.
The invention provides a regular polygon preemptive electric vehicle power distribution charging method according to needs, which comprises the following steps:
every two of the N groups of charging modules are interconnected according to a regular polygon structure, when a plurality of electric vehicles are charged simultaneously, each electric vehicle occupies the directly connected charging module and borrows other modules according to the required power until no charging module is borrowed;
if the required power is reduced, returning the corresponding debit charging module.
Preferably, during the charging process of some vehicles, if a borrowed charging module is preempted by other vehicles, the borrowed charging module is borrowed to other charging modules.
Preferably, all vehicles compete to transfer a certain same charging module at the same time, the competition mode adopts a priority mode, and the lower the serial number of the charging equipment is, the higher priority vehicle transfer module is provided for charging.
Preferably, in the connection of every two of the N groups of charging modules in a regular polygon structure, N (N-1)/2 groups of contactors are correspondingly adopted, and each or each group of charging modules is respectively connected with one charging device.
As shown in fig. 1, in the regular polygon preemptive electric vehicle demand power distribution charging circuit provided in the embodiment of the present invention, each group of charging modules 2 is connected with each other in pairs according to a regular polygon structure, and N × (N-1)/2 groups of contacts are used, and each group of charging modules 2 may be connected with one charging device 1. Wherein, the charging module 2 is connected with the charging device 1 through a power cable 4.
The working principle of the invention is as follows:
when there are N groups of charging modules, each or group of charging modules are connected with each other pairwise according to a regular polygon structure, N (N-1)/2 groups of contactors are adopted, and each or group of charging modules can be connected with a charging device respectively. When a plurality of electric vehicles are charged simultaneously, each electric vehicle can seize the charging module directly connected with the electric vehicle, and then the electric vehicles can borrow other modules according to the required power until the charging modules are not borrowed.
Finally, if the required power is reduced, returning the corresponding charging module; in the charging process of some vehicles, the borrowed modules can be preempted by other vehicles, when the borrowed modules are preempted, the borrowed modules can be borrowed to other charging modules immediately, all vehicles compete to borrow the charging modules at the same time, the competition mode adopts a priority mode, the lower the serial number of the charging equipment is, and the vehicle has a high-priority automobile borrowing charging module.
In a preferred embodiment of the present invention, the module group is borrowed from low to high (module grouping numbers 1 to N), and the module group is returned from high to low (module grouping numbers 1 to N).
When the vehicles are not charged, gun numbers of 1#, 2#, 3# -N # are coded according to the number of charging guns, the lower the default gun number is, the higher the priority level is, when the vehicles compete for a certain group of charging modules, the charging gun numbers used by the vehicles are read firstly, then the read gun numbers are arranged in an ascending order, and finally the vehicle with the lowest charging gun number in the arrangement is selected to borrow the group of charging modules.
The effect of the present invention will be further described below in connection with the prior art schemes.
Table 1: regular polygon preemption and matrix comparison of the present invention
The technical solution of the present invention is further described with reference to the following specific examples.
Examples
The matrix structure 360kw6 changes the gun 6 module charging stack into regular polygon preemptive charging stack power consumption situation and analysis description.
Taking the loss analysis of a charging station of a certain charging station as an example:
(1) station situation description:
the method comprises the steps that the power consumption of a power supply department is obtained from the arrangement condition of a certain charging station, namely box-type transformer high-voltage ring main unit loss, transformer loss, station car washing and power consumption loss, 360 charging pile modules are in no-load and on-load, 3 terminals are arranged, and six gun control parts are lost, charging car charging power is lost, video monitoring is carried out, and other power consumption is ignored; the original matrix type charging pile with 360kw6 gun 6 module groups was replaced by a regular polygon preemptive charging pile on 30 months and 3 months in 2021.
(2) Charging the vehicle condition:
a. a certain charging station 404 routes of the company, namely EV Jinlong pure electric midibus, has the following BMS parameters:
BRM: national standard 2015; a lithium iron phosphate battery (3); rated capacity of the whole vehicle power storage battery: 240.0 Ah; rated total voltage of the whole vehicle power storage battery: 508.8V; battery manufacturers: "CATL" Battery Serial number: xx; battery pack production date: unknown; the number of battery pack charging times: 730; battery pack property right: xx; vehicle identification code: "LA6N6DA58HB 302003"; BMS software version number: xxx;
BCP: maximum charging voltage of the cell: 3.75V; maximum charging current: 240.0A; nominal total energy: 122.1 kWh; maximum allowed total charging voltage: 588.3V; maximum allowable temperature: 65 ℃; the current state of charge: 81.0 percent; current battery voltage: 527.8V;
BCL: required voltage: 588.3V; the required current is as follows: 228.5A; constant current charging
CCS output voltage value: 527.0V; output current value: 71.2A; accumulating the charging time: 0 minute
b. The charging mode is centralized charging at night, and alternate temporary power supplement during the day is shown in table 2.
TABLE 2
Statistical table of 4-month 12-15-day charging odd number and time rule of company certain charging station
c. The charging characteristics are as follows: the daily charge time is in the period of 7:00-21:00, about 15 hours, and the average per unit charge is: 25Kwh, average hourly charge requirement: 100 Kwh.
And (3) analysis:
each single charging time is as follows: 15 minutes, the charge requirement was about: 100KWH, that is 6 stacks of 360kw, has 2 sets of modules (6 modules) in load operation and the remaining 4 sets of modules (12 modules) in control. Meanwhile, according to the EV Jinlong pure electric midibus, the CCS voltage of BMS parameters is 527.0V, and the charging current is obtained as follows: 100kw ÷ 527V × 1000 ≈ 190A, the maximum output according to the charging pile module parameter characteristics of a certain charging station of the company is as follows: the maximum module borrowing current is 38A × 3 ═ 114A, that is, two groups of module borrowing loading rates are required: 190A ÷ 228A ×% (83.33%) so that laboratory data can find that Σ U ═ 234.92Vac, three-phase input currents are: Σ I — 22.193a, apparent power: Σ S — 15.603KVA, active power: Σ P — 15.556KW, reactive power: Σ Q — 1.2048KVar, power factor: Σ λ is 0.9970. The average reactive power of each phase is also-402 var (slightly lower than the load of 10%, 30% and 50%), which shows that the capacitive load is optimal when the module is loaded at 75% -90%, and the module efficiency η is Pc ═ Pc ÷ Σ P × 100% = 14.666 ÷ 15.556 × 100% ~ 94.28% (laboratory data) only by using the original load loss when the module is unloaded, and the output power Pc ═ 0.737 × 19.9 ═ 14.666Kw (in the case of constant current charging);
after 21 points pass, a charging bus driver inserts and snatches people, the dead time of 18 charging modules is about 10 hours, and the detection and judgment of a working main contactor of a matrix type PDU power distribution board module jumping module is based on that all terminals are not inserted and snatched and then are delayed for 3 minutes to jump and snatch, so that for a station where people are inserted and snatched, the modules are still in a dead state even if a charging vehicle is full.
The power supplementing period is 14 hours, the charging time is 15 minutes per hour on average, namely three 4-out of 14 hours of the power supplementing module in the daytime is idle, the delay time of the total contactor of the PDU power distribution jump module with the matrix structure is 3 minutes, namely the power supplementing module in the daytime has the idle loss of 4 groups of modules in 15 minutes and the idle loss of 6 groups of modules in 3 minutes per hour in 14 hours, namely: module loss is 10 hours x 18 modules no load loss at night + (day module loss is 14 hours x 1/4 x 12 modules no load loss +14 hours x 1/4 x 4 modules load loss +3 minutes x 18 modules no load loss).
Specific loss analysis statistics are shown in table 3 below.
TABLE 3
Analysis of power consumption situation of certain charging station of company
(3) Comparing the statistical analysis conditions of the power consumption quantity before and after:
the daily electricity consumption conversion comparison is shown in table 4.
TABLE 4
Analysis of daily electricity consumption statistics conversion condition of certain charging station of company
The monthly electricity consumption conversion comparison is shown in table 5.
TABLE 5
Analysis of monthly electricity consumption statistics conversion condition of certain charging station of company
The actual power consumption analysis comparison in the 4-month period is shown in table 6.
TABLE 6
Analysis of power consumption situation of company at certain charging station time
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A charging method for distributing power of a regular polygon preemptive electric vehicle according to needs is characterized in that the charging method for distributing power of the regular polygon preemptive electric vehicle according to needs comprises the following steps:
every two of the N groups of charging modules are interconnected according to a regular polygon structure, when a plurality of electric vehicles are charged simultaneously, each electric vehicle occupies the directly connected charging module and borrows other modules according to the required power until no charging module is borrowed;
if the required power is reduced, returning the corresponding debit charging module.
2. The method for allocating power to charge an equilateral polygon preemptive electric vehicle according to needs as claimed in claim 1, wherein before the vehicle is not charged, the charging modules are already grouped according to the numbers of 1-N, then the vehicle adopts a state polling strategy for all the charging module groups in the charging process, determines which charging module groups are already occupied by other vehicles according to the fed-back state information, and simultaneously determines whether the charging module groups need to be borrowed or returned according to the real-time required power of the vehicle, if the charging module groups need to be borrowed, the module groups with lower numbers are borrowed first; if the group of charging modules needs to be returned, the higher numbered group is returned first.
3. The method of claim 2 wherein the modules are grouped by a low-to-high module group number 1-N and returned by a high-to-low rule.
4. The method as claimed in claim 1, wherein all vehicles compete for borrowing a same group of charging modules, the competition mode adopts a priority mode, and when the vehicles are not charged, the method proceeds to 1 according to the number of charging guns#～N#The number is lower, the priority level is higher, when competing for a certain group of charging modules, the number of the charging gun used by the vehicle is read firstly, then the read numbers are arranged in an ascending order, and finally the vehicle with the lowest number of the charging gun in the arrangement is selected to borrow the group of charging modules.
5. The method according to claim 1, wherein N charging modules are connected in pairs according to a regular polygon structure, wherein N × (N-1)/2 sets of contacts are correspondingly used, and each set of charging modules is connected to a charging device.
6. The utility model provides a regular polygon preemptive electric automobile distributes power charging circuit as required which characterized in that, regular polygon preemptive electric automobile distributes power charging circuit as required is provided with: and the charging modules are connected with each other in pairs according to the regular polygon structure.
7. The regular polygon preemptive electric vehicle demand distribution power charging circuit as recited in claim 6, wherein said charging module is connected to a charging device via a power cable.
8. The regular polygon preemptive electric vehicle demand power charging circuit as recited in claim 6, wherein said charging modules are interconnected with each other with a contact set therebetween.
9. The application of the regular polygon preemptive electric vehicle power-on-demand charging method according to any one of claims 1-5 in charging piles with different powers and with single gun or multiple guns.
10. An electric vehicle, characterized in that the electric vehicle implements the regular polygon preemptive electric vehicle demand power charging method according to any one of claims 1-5.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117236507A (en) * | 2023-09-25 | 2023-12-15 | 广州汇锦能效科技有限公司 | Urban public transportation green intelligent energy management system, method and storage medium |
| CN118611035A (en) * | 2024-05-20 | 2024-09-06 | 绿能慧充数字技术有限公司 | Charging pile power distribution topology, cabinet combining system, control method thereof and controller |
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2021
- 2021-07-20 CN CN202110820911.9A patent/CN113580985A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117236507A (en) * | 2023-09-25 | 2023-12-15 | 广州汇锦能效科技有限公司 | Urban public transportation green intelligent energy management system, method and storage medium |
| CN118611035A (en) * | 2024-05-20 | 2024-09-06 | 绿能慧充数字技术有限公司 | Charging pile power distribution topology, cabinet combining system, control method thereof and controller |
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