CN109398133B - Electric automobile charging cluster and automatic power distribution system thereof - Google Patents

Electric automobile charging cluster and automatic power distribution system thereof Download PDF

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CN109398133B
CN109398133B CN201811272927.5A CN201811272927A CN109398133B CN 109398133 B CN109398133 B CN 109398133B CN 201811272927 A CN201811272927 A CN 201811272927A CN 109398133 B CN109398133 B CN 109398133B
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洪高英
段林涛
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Henan Yingkai Electric Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • G—PHYSICS
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    • G06Q10/06315—Needs-based resource requirements planning or analysis
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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    • H02J7/007—Regulation of charging or discharging current or voltage
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    • 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
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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Abstract

The invention belongs to the technical field of electric automobile charging, and particularly relates to an electric automobile charging cluster and an automatic power distribution system thereof. The charging cluster comprises a cluster control system, an information transmission network, a power supply network, an intelligent charging pile and an automatic power distribution system. The charging cluster is dynamically divided into a fast charging area and a slow charging area according to the working state of the intelligent charging pile, the charging power of the fast charging area and the slow charging area is allocated in real time according to the principle of preferentially ensuring the fast charging demand, the working sequence of the intelligent charging pile in the slow charging area is reasonably arranged under the condition that the slow charging area cannot meet the charging demand, the power load of the slow charging area is adjusted and optimized, the automatic distribution of the charging cluster power is realized, and the problem of low charging efficiency is solved when the charging cluster power is reduced in a power utilization peak period.

Description

Electric automobile charging cluster and automatic power distribution system thereof
Technical Field
The invention belongs to the technical field of electric automobile charging, and particularly relates to an electric automobile charging cluster and an automatic power distribution system thereof.
Background
With the increasingly excited contradiction between economic development and energy supply and environmental pollution, the problems of energy conservation, consumption reduction and reduction of dependence on fossil fuels become urgent needs to be solved in the continuous economic development of countries in the world. The electric automobile has the advantages of oil saving, environmental protection and high efficiency, and scientists and industries in various countries in the world generally consider the electric automobile to be an important clean vehicle in twenty-first century. The electric vehicle charging station and the charging network are important infrastructures for large-scale and industrialized development of electric vehicles, and the large-scale charging station is called as a charging cluster and is an important development direction of the charging station.
Generally, the charging station conflicts with the electricity consumption of residents, the problem of reduction of available load power of the charging station can occur in the electricity consumption peak period, when a large number of charging vehicles enter the charging station for charging at the same time, the power is often not distributed enough, particularly in the evening, the electricity consumption peak period of the residents is the time, and the available load power of the charging station at the time can be smaller than the rated power of a charging cluster. The first measure is to close part of charging piles first and start working after remaining power is available, and the method often causes waste of charging equipment resources. The second measure is that all charging piles in the cluster reduce power proportionally to work, the equipment utilization rate is improved at the moment, but all equipment reduce power to work, the vehicle charging time is prolonged, the charging efficiency is reduced, the charging station is full of charged vehicles at the moment, and a large number of vehicles waiting for entering the charging station are still available outside the station.
The main reason for the above problem is that the construction of the large-scale charging station does not meet the requirement of the cluster management. Because the charging requirements of different charging vehicles are different, for example, the remaining charge of the vehicle entering the charging cluster is different, the vehicle-taking time of the vehicle owner is different, and the charging power requirements of the vehicles in different charging stages are different from the charging process, when the on-board battery pack is nearly fully charged, the charging power requirements are reduced to about one fifth of the rated capacity of the battery. Although the current intelligent charging pile can interact with a BMS system, the charging power of the intelligent charging pile is adjusted to be optimal according to the charging requirement of a charging vehicle, the charging cluster does not monitor and manage the work of the charging pile in real time, and the power output of the charging pile and the power consumption in a balance station cannot be dynamically adjusted according to the overall charging requirement condition in the station. In addition, in terms of a charging strategy, the power scheduling rule of the charging cluster at present follows the principle of first-come first-serve and schedules according to the sequence of the electric vehicles, when an idle charging pile exists, a vehicle starts to work when arriving, and the charging time and the charging power are not flexibly distributed according to the overall vehicle charging requirement of the charging cluster.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an electric vehicle charging cluster based on an automatic power distribution technology, which is used for carrying out power allocation in real time according to the change of the charging power requirement in the cluster, balancing the power requirements of different charging types and different charging time periods, and improving the charging efficiency and the utilization rate of charging equipment.
In order to solve the above problems, the present invention proposes the following technical solutions:
in one aspect, the invention provides an electric vehicle charging cluster. The electric vehicle charging cluster comprises a cluster control system, an information transmission network, an intelligent charging pile, a power supply network and an automatic power distribution system.
The cluster control system of the charging cluster monitors the working state of the equipment of the charging cluster through an information transmission network, performs information interaction with the equipment of the charging cluster, controls and coordinates the work of the equipment, reasonably arranges the working sequence of the intelligent charging piles in a slow charging area according to the charging requirement of a slow charging electric automobile, further adjusts and optimizes the power load of the slow charging area, and balances the power requirements of different charging periods.
And the automatic power distribution system is used for acquiring the working information of the intelligent charging pile from the cluster control system, dynamically dividing charging areas in the cluster, and allocating the charging power of the fast charging area and the slow charging area in real time according to the principle of preferentially ensuring the fast charging demand.
And the intelligent charging pile is used for monitoring the BMS charging information in real time, performing information interaction with the cluster control system and executing the instruction of the cluster control system.
And the information transmission network is used for connecting the equipment to which the cluster belongs and transmitting information and instructions.
And the power supply network is used for supplying power to the equipment to which the cluster belongs.
Furthermore, intelligent charging stake, including the joint that charges fast and the joint that charges slowly, can satisfy electric automobile's quick charge and the demand that charges slowly simultaneously or respectively.
Furthermore, the intelligent charging pile comprises an interactive operation panel, and a user can complete the operations of vehicle taking time setting, card swiping payment and the like through the panel.
Still further, the intelligent charging pile is connected with a BMS system of the electric automobile by using a can bus, and charging information provided by the BMS is acquired.
Further, the cluster control system comprises a vehicle reservation module and a data storage module.
And the vehicle reservation module is used for receiving reserved charging vehicle information and dynamically allocating charging parking spaces and charging time periods according to the power allocation scheme provided by the information processing and control module.
The data storage module is used for recording the past charging information of the charging cluster, and the past charging information comprises the total charging power, the utilization rate of charging equipment, the charging information of charging vehicles and the like in each time interval.
Furthermore, the information processing and control module predicts the power demand and the charging equipment demand which do not come according to the prediction algorithm and optimizes the power distribution scheme according to the mass data information and the reserved vehicle information provided by the data storage module.
The electric vehicle charging cluster provided by the invention is connected with the equipment through an information transmission network, and the work of the equipment is uniformly controlled and coordinated; the charging area inside the cluster is dynamically divided, according to the principle of preferentially ensuring the demand of quick charging, the charging power of the quick charging area and the slow charging area is allocated in real time, when the power limit of the slow charging area cannot meet the charging demand, the working sequence of intelligent charging piles in the slow charging area is reasonably arranged, the power load of the slow charging area is further adjusted and optimized, the working efficiency of the charging cluster is improved, and the problems that the charging speed is reduced and the charging efficiency is low in the peak period of power utilization and the charging cluster power is reduced are solved. Further, by adding the data storage module and the vehicle reservation module, the charging cluster can statistically predict future power requirements and equipment requirements according to mass data information and reserved vehicle information provided by the data storage module, and plan a more optimized power distribution scheme.
On the other hand, the invention provides an automatic distribution system of electric vehicle charging cluster power, which comprises a power monitoring module, a calculation module and a power control module;
a power monitoring module connected with the cluster control system of the charging cluster and used for acquiring charging power information of the charging cluster, including the total limit P of the charging cluster powerzThe current required charging power P of the ith intelligent charging pile which is being rapidly chargedkiThe current required charging power P of the ith intelligent charging pile which is being charged at low speedmi；
The power calculation module receives the power information of the power monitoring module, converts the m intelligent charging piles which are rapidly charged at present into a rapid charging area, converts the n intelligent charging piles which are slowly charged at present into a slow charging area, and then actually charges the n intelligent charging pilesTimely calculating required power of quick charging area of charging cluster
Figure GDA0003110144240000031
And power required by the slow charging area
Figure GDA0003110144240000032
Generating a power allocation instruction according to a preset power allocation method, and controlling a power control module to adjust power; under the condition that the slow charging power is insufficient, the required charging time is calculated according to the vehicle taking time, the required charging power and the vehicle residual electric quantity uploaded by the intelligent charging pile in the slow charging area, the time is fed back to the cluster control system through the power monitoring module, and the cluster control system sets the charging starting time of the intelligent charging pile which is charged slowly;
the power control module executes the power allocation instruction, adjusts the output power of the intelligent charging pile in real time, and adjusts the charging power of a fast charging area and a slow charging area;
the power allocation method comprises the following steps:
charging power total P of clusterzThe power monitoring module fully distributes power to the fast charging area according to the preset proportion of the system, and the power limit is PkzAllocating charging power amount to slow charging area as Pmz，Pz＝Pkz+Pmz；
If it is not
Figure GDA0003110144240000033
And is
Figure GDA0003110144240000034
Then the power quota allocation is carried out by keeping the preset proportion of the system;
if it is not
Figure GDA0003110144240000035
And is
Figure GDA0003110144240000036
Then handle PkzDown-regulated to
Figure GDA0003110144240000037
For limitation, the charging pile in the quick charging area works at full load, and P is addedmzIs prepared from P'mz＝Pz-P′kzIf at this time
Figure GDA0003110144240000038
If the charging pile in the slow charging area works at full load, otherwise, the power calculation module calculates the charging time required by the vehicles charged in the slow charging area one by one according to the vehicle taking time, the required charging power and the vehicle residual electric quantity uploaded by the intelligent charging pile in the slow charging area, the cluster control system sets the charging time of the intelligent charging pile in the slow charging area one by one, and the intelligent charging pile starts to work after the set time is reached; then the power calculation module calculates the charging power required by the intelligent charging pile in the charging state in the slow charging area again
Figure GDA0003110144240000039
If at that time
Figure GDA00031101442400000310
The charging pile in the slow charging area works at full load, otherwise, the intelligent charging piles in the charging state in the slow charging area all work at reduced load according to proportion, and the output power is reduced to the original output power
Figure GDA00031101442400000311
If it is not
Figure GDA00031101442400000312
Then handle PkzIs adjusted up to
Figure GDA00031101442400000313
Charging pile full load work in the quick charging area is PmzDown-regulated to P'mz＝Pz-P′kzIf at this time
Figure GDA00031101442400000314
If not, the power calculation module calculates the required charging time of the vehicles charged in the slow charging area one by one according to the vehicle taking time, the required charging power and the residual electric quantity of the vehicles uploaded by the intelligent charging pile in the slow charging area, the cluster control system sets the charging time of the intelligent charging pile in the slow charging area one by one, the intelligent charging pile starts to work after the set time is reached, and then the power calculation module calculates the required charging power of the intelligent charging pile in the charging state in the slow charging area again
Figure GDA00031101442400000315
If at that time
Figure GDA00031101442400000317
The charging pile in the slow charging area works at full load, otherwise, the intelligent charging piles in the charging state in the slow charging area all work at reduced load according to proportion, and the output power is reduced to the original output power
Figure GDA00031101442400000316
If it is not
Figure GDA0003110144240000041
Then the power P allocated to the fast charging area is calculatedkzAdjusted to P'kz＝PzAnd stopping the work of all the intelligent charging piles in the slow charging area, reducing the load of the intelligent charging piles in the charging state in the fast charging area according to the proportion, and reducing the output power to the original output power
Figure GDA0003110144240000042
Furthermore, the car taking time of the car owner is set by the car owner in the intelligent charging pile.
Further, the remaining capacity and the required charging power of the vehicle are acquired by the intelligent charging pile from the BMS system of the vehicle.
According to the automatic power distribution system for the charging cluster of the electric automobile, provided by the invention, the charging cluster is divided into a fast charging area and a slow charging area according to the charging mode of the intelligent charging pile which is charging, and the power of the charging cluster is distributed between the slow charging area and the fast charging area by controlling the output power of the intelligent charging pile according to the principle of preferentially arranging the fast charging requirement of the electric automobile, so that the automatic distribution of the charging power of the charging cluster is realized, the manual operation cost is reduced, and the utilization rate and the working efficiency of the charging cluster equipment are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electric vehicle charging cluster based on an automatic power distribution technology in an embodiment of the present invention;
fig. 2 is a flowchart of an electric vehicle charging cluster power automatic allocation method in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The embodiment provides an electric vehicle charging cluster and an automatic power distribution method thereof.
The electric vehicle charging cluster provided by the embodiment is shown in fig. 1, wherein a connecting line in the figure represents an information transmission network, and a power supply network is omitted in the figure. The charging cluster comprises a cluster control system, an information transmission network, an intelligent charging pile, a power supply network and an automatic power distribution system. After the external power enters the charging cluster, the intelligent charging pile is powered through a power supply network. The intelligent charging pile used by the electric automobile charging cluster is provided with quick and slow charging connectors, the charging connectors are connected to a charging network in a parallel connection mode, a vehicle owner can select one of the charging connectors to charge the electric automobile, and one charging pile can meet the charging requirements of a plurality of electric automobiles simultaneously. The automatic power distribution system adjusts the output power of the charging connector to realize the adjustment of the power supply power of the fast charging area and the slow charging area, and when the power limit of the charging cluster is not changed, the fast charging area increases 100KW power, and the slow charging area correspondingly reduces 100KW power.
The cluster control system comprises a data acquisition module, a communication module and an information processing and control module. The data acquisition module is used for acquiring the working state information of the equipment to which the charging cluster belongs; the communication module is used for exchanging data with other affiliated equipment of the charging cluster in real time, converting and arranging data information formats and outputting the data information formats to the data acquisition module; and the information processing and control module is used for processing the data output by the data acquisition module, generating a control instruction, coordinating and controlling the work of the equipment of the charging cluster, controlling the charging time of the intelligent charging pile according to the power allocation method shown in fig. 2, and optimizing the charging power distribution of the slow charging area.
And the automatic power distribution system is used for responding to the instruction of the cluster control system, monitoring the power distribution and the use condition of the whole charging cluster in real time, carrying out regional management on the power of the charging cluster, and distributing the input power of a quick charging area and a slow charging area in the charging cluster by adjusting the output power of the charging connector.
The intelligent charging pile is connected with a BMS system of the automobile by using a Can bus, and further comprises a user operation panel, a power supply module, a communication module and a monitoring and control module. By utilizing the user operation panel, a vehicle owner can set vehicle taking time in the intelligent charging pile so as to finish operations such as card swiping payment and the like; and the central processing module is used for controlling and coordinating the work of the charging pile, performing information interaction with the cluster control system through the communication module and responding to the instruction of the cluster control system. The monitoring and control module monitors vehicle charging information including required charging power, residual electric quantity and the like provided by the BMS in real time, and sends a voltage regulation instruction to the power supply module according to the power supply condition and the vehicle charging condition of the current area to adjust the charging voltage; and the power supply module is connected with a power supply area network, executes the instruction of the automatic power distribution system, corrects the voltage regulation instruction sent by the power supply module, and adjusts the output power of the charging connector.
The information transmission network comprises a router and an optical fiber Ethernet and is used for connecting the cluster control system, the automatic power distribution system and the intelligent charging pile, so that the cluster control system can control the intelligent charging pile, set parameters and inquire data, and meanwhile, the charging pile can upload the working information of the charging pile in real time through a network interface.
After the charging cluster starts to work, the power is automatically distributed according to the flow shown in fig. 2, and the specific steps are as follows:
A. the automatic power distribution system sets the charging power limit of the quick charging area to be P according to the preset proportion of the systemkzSetting the charging power limit of the slow charging area as Pmz，Pz＝Pkz+Pmz，PzThe charge power credit for the cluster.
B. The automatic power distribution system divides m intelligent charging piles which are in rapid charging into a rapid charging area, and divides n intelligent charging piles which are in slow charging into a slow charging area.
C. Real-time monitoring required charging power P of ith intelligent charging pile performing quick chargingkiAnd the required charging power P of the ith intelligent charging pile which is in slow chargingmi。
D. Calculating the charging power required by the slow charging area
Figure GDA0003110144240000051
And charging power required by fast charging area
Figure GDA0003110144240000052
E. If it is not
Figure GDA0003110144240000053
And is
Figure GDA0003110144240000054
Then return to step B.
F. If it is not
Figure GDA0003110144240000055
Then the power limit P of the fast charging area is calculatedkzAdjusted to P'kz＝PzWhen the slow charging area stops supplying power, the automatic power distribution system adjusts the output power of the charging connector of the fast charging area, and the output power is adjusted to be the original output power
Figure GDA0003110144240000056
Turning to the step B;
G. if it is not
Figure GDA0003110144240000057
Then the power limit P of the fast charging area is calculatedkzIs adjusted to
Figure GDA0003110144240000058
Charging pile full load work in the fast charging area, and the power credit of the slow charging area is changed into P'mz＝Pz-P′kzGo to step I.
H. If it is not
Figure GDA0003110144240000059
While
Figure GDA00031101442400000510
Then the power limit P of the fast charging area is calculatedkzIs adjusted to
Figure GDA00031101442400000511
The charging pile in the fast charging area works at full load, and the power credit of the slow charging area is changed into P'mz＝Pz-P′kz。
I. If it is not
Figure GDA0003110144240000061
And C, the charging pile in the slow charging area works at full load, and the step B is carried out.
J. The automatic power distribution system calculates the required charging time of the intelligent charging piles in the slow charging area one by one according to the vehicle taking time, the required charging power and the vehicle residual capacity uploaded by the vehicle owner by the intelligent charging piles in the slow charging area, the cluster control system sets the working time of the intelligent charging piles one by one according to the calculation result, and the intelligent charging piles start to charge at a low speed after the set time is reached.
K. Calculating the total required charging power of the slow charging area
Figure GDA0003110144240000062
L, if
Figure GDA0003110144240000063
B, the charging pile in the slow charging area works at full load, and the step B is returned; otherwise, the intelligent charging pile in the slow charging area reduces the load according to the proportion and works, and the output power is reduced to the original power
Figure GDA0003110144240000064
And returning to the step B.
According to the electric vehicle charging cluster and the automatic electric vehicle charging cluster power distribution system provided by the embodiment of the invention, a vehicle owner sets vehicle taking time through an intelligent charging pile, the intelligent charging pile acquires charging information of an electric vehicle in real time through a CAN bus, the cluster monitoring system monitors the charging working process of the whole cluster system, the rapid charging requirement is preferentially arranged according to the power supply requirement characteristics of each area in the cluster, the sequence of the intelligent charging pile for slow charging is reasonably arranged, the power adjustment quantity of each area is dynamically calculated, the power load in the cluster is adaptively adjusted, and the purposes of improving the equipment utilization rate and the load utilization rate in the charging cluster are achieved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (9)

1. An electric vehicle charging cluster is characterized by comprising a cluster control system, an information transmission network, an intelligent charging pile, a power supply network and an automatic power distribution system;
the cluster control system performs information interaction with the equipment to which the charging cluster belongs through an information transmission network, monitors the working state of the charging cluster, controls and coordinates the work of the charging cluster, sets the working sequence of the intelligent charging pile in the slow charging state under the condition that the slow charging power cannot meet the charging requirement, and further adjusts and optimizes the power load of the charging cluster;
the automatic power distribution system is used for classifying the intelligent charging piles which are being charged into a fast charging area or a slow charging area, and distributing the charging power of the fast charging area and the slow charging area in real time according to the principle of preferentially ensuring the fast charging requirement;
the intelligent charging pile is used for monitoring BMS charging information in real time, performing information interaction with the cluster control system and executing instructions of the cluster control system;
the information transmission network is used for connecting the equipment to which the cluster belongs and transmitting information and instructions;
the power supply network is used for supplying power to the equipment to which the cluster belongs;
the automatic power distribution system comprises a power monitoring module, a calculation module and a power control module;
the power monitoring module is connected with the cluster control system of the charging cluster and used for acquiring charging power information of the charging cluster, including the total limit P of the charging cluster powerzThe current required charging power P of the ith intelligent charging pile which is being rapidly chargedkiIth intelligent charging pile in slow chargingCurrent required charging power Pmi；
The power calculation module receives the power information of the power monitoring module, converts the m intelligent charging piles which are rapidly charged at present into a fast charging area, converts the n intelligent charging piles which are slowly charged at present into a slow charging area, and calculates the power required by the fast charging area of the charging cluster in real time
Figure FDA0003110144230000011
And power required by the slow charging area
Figure FDA0003110144230000012
Generating a power allocation instruction according to a preset power allocation method, and controlling a power control module to adjust power; under the condition that the slow charging power is insufficient, the required charging time is calculated according to the vehicle taking time, the required charging power and the vehicle residual electric quantity uploaded by the intelligent charging pile in the slow charging area, the time is fed back to the cluster control system through the power monitoring module, and the cluster control system sets the charging starting time of the intelligent charging pile which is charged slowly;
the power control module executes the power allocation instruction, controls the charging power of the intelligent charging pile, and distributes the power between the fast charging pile and the slow charging pile in real time;
the power allocation method comprises the following steps:
the power monitoring module sets the power limit of the quick charging area to be P according to the preset proportion of the systemkzSetting the power limit of the slow charging area as Pmz，Pz＝Pkz+Pmz，PzTotal charging power credit for the charging cluster;
if it is not
Figure FDA0003110144230000013
And is
Figure FDA0003110144230000014
Then the power distribution is carried out by keeping the preset proportion of the system;
if it is not
Figure FDA0003110144230000021
Then handle PkzDown-regulated to
Figure FDA0003110144230000022
If the charging pile is limited, the charging pile in the quick charging area works at full load, and P is calculatedmzIs prepared from P'mz＝Pz-P’kzIf at this time
Figure FDA0003110144230000023
The charging pile in the slow charging area works at full load, otherwise, the power calculation module calculates the charging time required by the charging vehicles in the slow charging area one by one according to the vehicle taking time, the required charging power and the vehicle residual electric quantity uploaded by the intelligent charging pile in the slow charging area, the cluster control system sets the charging time of the intelligent charging pile in the slow charging area one by one, and the intelligent charging pile starts to work after the set time is reached; then the power calculation module calculates the charging power required by the intelligent charging pile in the charging state in the slow charging area again
Figure FDA0003110144230000024
If at that time
Figure FDA0003110144230000025
The charging pile in the slow charging area works at full load, otherwise, the intelligent charging piles in the charging state in the slow charging area all work at reduced load according to proportion, and the output power is reduced to the original output power
Figure FDA0003110144230000026
If it is not
Figure FDA0003110144230000027
Then handle PkzIs adjusted up to
Figure FDA0003110144230000028
Charging pile full load work in a quick charging area, and charging pile PmzDown-regulated to P'mz＝Pz-P'kzIf at this time
Figure FDA0003110144230000029
The charging pile in the slow charging area works at full load, otherwise, the power calculation block calculates the charging time required by the charging vehicles in the slow charging area one by one according to the vehicle taking time, the required charging power and the vehicle residual electric quantity uploaded by the intelligent charging pile in the slow charging area, the cluster control system sets the charging time of the intelligent charging pile in the slow charging area one by one, and the intelligent charging pile starts to work after the set time is reached; then the power calculation module calculates the charging power required by the intelligent charging pile in the charging state in the slow charging area again
Figure FDA00031101442300000210
If at that time
Figure FDA00031101442300000211
The charging pile in the slow charging area works at full load, otherwise, the intelligent charging piles in the charging state in the slow charging area all work at reduced load according to proportion, and the output power is reduced to the original output power
Figure FDA00031101442300000212
If it is not
Figure FDA00031101442300000213
Then the power limit P of the fast charging area is calculatedkzAdjusted to P'kz＝PzAnd stopping the work of all the intelligent charging piles in the slow charging area, reducing the load of the intelligent charging piles in the charging state in the fast charging area according to the proportion, and reducing the power to the original power
Figure FDA00031101442300000214
。
2. The electric vehicle charging cluster of claim 1, wherein the intelligent charging pile comprises a fast charging connector and a slow charging connector.
3. The electric vehicle charging cluster of claim 1, wherein the intelligent charging pole comprises an interactive operating panel.
4. The electric vehicle charging cluster of claim 3, wherein the vehicle-taking time of the vehicle owner is set by the vehicle owner on the intelligent charging pile operating panel.
5. The electric vehicle charging cluster according to claim 1, wherein the intelligent charging pile is connected to a BMS system of the electric vehicle by using a can bus to obtain charging information provided by the BMS.
6. The electric vehicle charging cluster of claim 5, wherein the remaining capacity and the required charging power of the vehicle are obtained by the cluster control system from a BMS system of the vehicle through the intelligent charging post.
7. The electric vehicle charging cluster of claim 1, wherein the cluster control system further comprises a data storage module configured to record historical charging information for the charging cluster.
8. The electric vehicle charging cluster of claim 7, wherein the cluster control system further comprises a vehicle reservation module for receiving reserved charging vehicle information and dynamically allocating charging slots and charging periods.
9. The charging cluster of claim 8, wherein the cluster control system predicts future power and equipment requirements of the charging cluster based on the data information provided by the data storage module and the reserved vehicle information to optimize the power distribution scheme.
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