CN111347910A - Charging power distribution method, control cloud platform and system - Google Patents

Charging power distribution method, control cloud platform and system Download PDF

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Publication number
CN111347910A
CN111347910A CN201811560884.0A CN201811560884A CN111347910A CN 111347910 A CN111347910 A CN 111347910A CN 201811560884 A CN201811560884 A CN 201811560884A CN 111347910 A CN111347910 A CN 111347910A
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charging
power
pile
current
charging pile
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李伟
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/70—Interactions with external data bases, e.g. traffic centres
    • 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
    • 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
    • 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
    • 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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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The disclosure provides a method, a control cloud platform and a system for distributing charging power, and relates to the field of Internet of things. The method comprises the following steps: acquiring a charging amount required by an electric automobile connected with a current charging pile and a charging contract of a user, wherein the charging contract comprises charging service time; calculating the charging power required by the current charging pile according to the charging amount and the charging service time; distributing charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile; under the condition that the required charging power is less than or equal to the initialized charging power, directly configuring the required charging power for the current charging pile to execute a charging contract; and under the condition that the required charging power is greater than the initial charging power, dynamically distributing surplus charging power of other charging piles in the charging pile group to the current charging pile. The present disclosure enables distribution of charging power.

Description

Charging power distribution method, control cloud platform and system
Technical Field
The disclosure relates to the technical field of internet of things, and in particular relates to a method for distributing charging power, a control cloud platform and a system.
Background
Along with the popularization of electric vehicles, the number of charging piles is also increased rapidly. Along with the increase of the demand of charging piles, the number of the charging piles can be increased rapidly, but the actual total operating power of the charging pile group is limited by the total power of the field power supply. In the process of popularizing the deployment of the charging pile, service providers and users increasingly want to deploy the charging pile as much as possible in an area with certain total power supply under the condition of ensuring the safety of a power grid so as to serve more users.
Disclosure of Invention
The technical problem that this disclosure solved is: a method of distributing charge power is provided.
According to an aspect of an embodiment of the present disclosure, there is provided a method of distributing charging power, including: acquiring a charging amount required by an electric automobile connected with a current charging pile and a charging contract of a user, wherein the charging contract comprises charging service time; calculating the charging power required by the current charging pile according to the charging amount and the charging service time; distributing charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile; wherein, in case the required charging power is less than or equal to the initialization charging power, directly configuring the required charging power to the current charging post to execute the charging contract; and under the condition that the required charging power is greater than the initialized charging power, dynamically distributing surplus charging power of other charging piles in the charging pile group to the current charging pile, wherein the surplus charging power of each charging pile is a part of the initialized charging power of the charging pile exceeding the actual charging power of the charging pile.
In some embodiments, the step of dynamically allocating the surplus charging power of other charging piles in the charging pile group to the current charging pile comprises: when the sum of the surplus charging powers of the other charging piles is larger than or equal to the power shortage of the current charging pile, dynamically distributing the surplus charging powers of the other charging piles to the current charging pile according to the sequence of the surplus charging powers of the other charging piles from large to small; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
In some embodiments, the step of dynamically allocating the surplus charging power of other charging piles in the charging pile group to the current charging pile comprises: under the condition that the sum of the surplus charging power of the other charging piles is smaller than the power shortage of the current charging pile, dynamically distributing the surplus charging power and at least part of actual charging power of the other charging piles to the current charging pile according to the remaining charging service time of the other charging piles and the charging service time of the current charging pile; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
In some embodiments, the charging power distributed to the current charging pile by each of the other charging piles is determined according to a ratio of a difference between the remaining charging service time of each of the other charging piles and the charging service time of the current charging pile to a sum of all differences; and each charging pile is in positive correlation with the charging power distributed by the current charging pile and the proportion corresponding to each charging pile.
In some embodiments, the method further comprises: and after the charging service of the current charging pile is completed, respectively increasing charging power for the other charging piles, wherein the charging power increased by each charging pile in the other charging piles is greater than the charging power distributed to the current charging pile by the charging pile.
In some embodiments, the charging service time of the current charging post is less than the charging service time of each of the other charging posts.
In some embodiments, the initial charging power of at least some of the charging piles is less than the rated charging power of the charging piles; and the sum of the initialized charging power of all charging piles of the charging pile group is less than or equal to the area rated power of the area where the charging pile group is located.
According to another aspect of the embodiments of the present disclosure, there is provided a control cloud platform, including: the charging system comprises an acquisition unit, a charging unit and a charging unit, wherein the acquisition unit is used for acquiring a charging amount required by an electric vehicle connected with a current charging pile and a charging contract of a user, and the charging contract comprises charging service time; the calculation unit is used for calculating the charging power required by the current charging pile according to the charging amount and the charging service time; the distribution unit is used for distributing charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile; wherein, in case the required charging power is less than or equal to the initialization charging power, directly configuring the required charging power to the current charging post to execute the charging contract; and under the condition that the required charging power is greater than the initialized charging power, dynamically distributing surplus charging power of other charging piles in the charging pile group to the current charging pile, wherein the surplus charging power of each charging pile is a part of the initialized charging power of the charging pile exceeding the actual charging power of the charging pile.
In some embodiments, the allocation unit is configured to dynamically allocate the surplus charging powers of the other charging piles to the current charging pile according to a descending order of the surplus charging powers of the other charging piles when the sum of the surplus charging powers of the other charging piles is greater than or equal to the power shortage of the current charging pile; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
In some embodiments, the allocation unit is configured to, when the sum of the surplus charging powers of the other charging piles is less than the power shortage of the current charging pile, dynamically allocate the surplus charging power and at least part of the actual charging power of the other charging piles to the current charging pile according to the remaining charging service time of the other charging piles and the charging service time of the current charging pile; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
In some embodiments, the allocation unit is configured to determine the charging power allocated to the current charging pile by each of the other charging piles according to a ratio of a difference between the remaining charging service time of each of the other charging piles and the charging service time of the current charging pile to a sum of all differences; and each charging pile is in positive correlation with the charging power distributed by the current charging pile and the proportion corresponding to each charging pile.
In some embodiments, the distribution unit is further configured to increase charging power for the other charging piles respectively after the current charging pile completes the charging service, where the charging power increased by each of the other charging piles is greater than the charging power distributed to the current charging pile by the charging pile.
In some embodiments, the charging service time of the current charging post is less than the charging service time of each of the other charging posts.
In some embodiments, the initial charging power of at least some of the charging piles is less than the rated charging power of the charging piles; and the sum of the initialized charging power of all charging piles of the charging pile group is less than or equal to the area rated power of the area where the charging pile group is located.
According to another aspect of the embodiments of the present disclosure, there is provided a control cloud platform, including: a memory; and a processor coupled to the memory, the processor configured to perform the method as previously described based on instructions stored in the memory.
According to another aspect of an embodiment of the present disclosure, there is provided a system for distributing charging power, including: fill electric pile and control cloud platform as before.
According to another aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method as previously described.
In the method for distributing the charging power, a charging amount required by an electric vehicle connected with a current charging pile and a charging contract of a user are obtained, wherein the charging contract comprises charging service time; calculating the charging power required by the current charging pile according to the charging amount and the charging service time; and distributing the charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile. And under the condition that the required charging power is less than or equal to the initial charging power of the current charging pile, directly configuring the required charging power for the current charging pile to execute a charging contract. And under the condition that the required charging power is larger than the initial charging power of the current charging pile, dynamically distributing the surplus charging power of other charging piles in the charging pile group to the current charging pile. The method realizes the distribution of the charging power.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 is a flow diagram illustrating a method of allocating charging power according to some embodiments of the present disclosure;
FIG. 2 is a schematic diagram illustrating a system for distributing charging power according to some embodiments of the present disclosure;
FIG. 3 is a schematic diagram illustrating a method of allocating charging power according to some embodiments of the present disclosure;
FIG. 4 is a flow chart illustrating a method of allocating charging power according to further embodiments of the present disclosure;
FIG. 5 is a schematic diagram illustrating the structure of a control cloud platform according to some embodiments of the present disclosure;
FIG. 6 is a block diagram illustrating a control cloud platform according to further embodiments of the present disclosure;
fig. 7 is a schematic diagram illustrating a structure of a control cloud platform according to further embodiments of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a flow chart illustrating a method of allocating charging power according to some embodiments of the present disclosure. As shown in fig. 1, the method may include steps S102 to S106.
In step S102, a charging amount required by the electric vehicle connected to the current charging pile and a charging contract of the user are acquired. The charging contract includes a charging service time.
For example, fig. 2 is a schematic diagram illustrating a system for distributing charging power according to some embodiments of the present disclosure. As shown in fig. 2, a charging pile (e.g., an intelligent charging pile) 220 may sense a required amount of charge of an electric vehicle 230 through a sensor. The user may issue a charging contract to the charging post 230 through an application module (APP) on the mobile terminal 240 to determine the charging service time. Next, the charging pile 220 interacts with the control cloud platform (alternatively referred to as a cloud control platform) 210. The charging pile 220 may notify the control cloud platform 210 of the charging capability (e.g., rated charging power) of the charging pile, the current required charging amount of the vehicle, the charging contract issued by the user, and the like. For example, the charging pile 220 may interact directly with the control cloud platform 210 or indirectly with the control cloud platform 210 through a smart charging network (or referred to as a smart charging pile network) 250. Through the above process, the control cloud platform 210 may obtain a charging amount required by the electric vehicle connected to the current charging pile and a charging contract of the user, where the charging contract includes charging service time.
The amount of charge required by the electric vehicle may be an amount of charge required when the electric vehicle is fully charged, or may be an amount of charge set by the user.
Returning to fig. 1, in step S104, the charging power required by the current charging pile is calculated according to the charging amount and the charging service time required by the electric vehicle.
For example, the control cloud platform 210 calculates the required charging power according to the charging amount required by the electric vehicle and the charging service time in the charging contract. In the embodiments of the present disclosure, the charging power may also be referred to as a charging right.
Returning to fig. 1, in step S106, charging power is distributed to the current charging pile according to the required charging power and the initialized charging power of the current charging pile.
And under the condition that the required charging power is less than or equal to the initialization charging power, directly configuring the required charging power for the current charging pile to execute a charging contract.
And under the condition that the required charging power is larger than the initial charging power, dynamically distributing surplus charging power of other charging piles (namely other charging piles except the current charging pile) in the charging pile group to the current charging pile. The surplus charging power of each charging pile is the part of the initial charging power of the charging pile exceeding the actual charging power of the charging pile. Here, the actual charging power refers to the current charging power of the charging pile that is operating.
Here, the initialization charging power is a system rating that controls power distributed to each charging post by the cloud platform. The initial charging power is not greater than the rated charging power (i.e., physical rated power) of the charging post. For example, the initial charging power of at least some of the charging piles in the charging pile group is smaller than the rated charging power of the charging piles. The sum of the initial charging power of all charging piles of the charging pile group is less than or equal to the area rated power of the area where the charging pile group is located. Here, the zone rated power is the total rated power of a certain zone.
In an embodiment of the present disclosure, the charging post operates within the range of the initial charging power by default. The initialized charging power is also a threshold value for judging whether the current charging pile power is surplus. When the actually required power of the charging piles is lower than the threshold value, the charging piles have surplus charging power which can be dynamically distributed to other charging piles; when the threshold value is exceeded, the excess part needs to be supplemented by other charging piles with surplus charging power which are dynamically distributed.
For example, a charging pile group with a rated charging power of 10KW is deployed in an area with a total power of 50KW (kilowatt). In the traditional charging pile group planning, each charging pile is distributed according to the rated power of the charging pile, and only 5 charging piles with the rated charging power of 10KW can be deployed in a 50KW area. In the embodiment of the present disclosure, if the initial charging power of each charging pile is defined to be 5KW, 10 charging piles with a rated power of 10KW may be deployed in a 50KW area. If the initial charging power is limited to be lower, more charging piles may be deployed within the area.
It should be noted that the control cloud platform may equally distribute the initialization charging power to the charging piles, or may unevenly distribute the initialization charging power, as long as the sum of the initialization charging powers of all the charging piles does not exceed the regional rated power.
In the actual charging process, the actual charging power of some charging piles may exceed the initial charging power of the charging piles, or may not exceed the initial charging power. For the case that the actual charging power of the charging pile is smaller than the initialization charging power, a surplus charging power may be defined, where the surplus charging power is a portion where the initialization charging power of the charging pile exceeds the actual charging power of the charging pile, that is, a difference value between the initialization charging power and the actual charging power (initialization charging power — actual charging power). For example, in the foregoing example, if the actual charging power of a certain charging pile is 4.5KW and the initial charging power is 5KW, the surplus charging power of the charging pile is 0.5 KW.
For example, the initialization charging power of the charging post is denoted by Pn 0. The Pn0 is distributed by the control cloud platform and is satisfied
∑Pn0≤PGeneral assembly， (1)
Here, PGeneral assemblyIndicating the zone power rating.
The actual charging power of the charging post is indicated at PnU. PnU may be any value within the rated charging power of the charging post. When PnU is smaller than Pn0, the difference part of Pn0-PnU is surplus charging power, and the surplus charging power can be used for dynamic distribution of other charging piles; when PnU is greater than Pn0, the excess charging power of PnU-Pn0 may be achieved within the charging pile group through dynamic allocation of the excess charging power of other charging piles.
After the cloud platform is controlled to dynamically distribute the charging power of the related charging piles, the electric automobile can be charged according to a contract.
To this end, methods of distributing charging power according to some embodiments of the present disclosure are provided. The method comprises the following steps: acquiring a charging amount required by an electric automobile connected with a current charging pile and a charging contract of a user, wherein the charging contract comprises charging service time; calculating the charging power required by the current charging pile according to the charging amount and the charging service time; and distributing the charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile. And under the condition that the required charging power is less than or equal to the initial charging power of the current charging pile, directly configuring the required charging power for the current charging pile to execute a charging contract. And under the condition that the required charging power is larger than the initial charging power of the current charging pile, dynamically distributing the surplus charging power of other charging piles in the charging pile group to the current charging pile. The method realizes the distribution of the charging power. According to the method, in an area with a certain total power supply power, charging piles can be deployed as much as possible under the condition of ensuring the safety of a power grid so as to serve more users.
In practical charging application, some users need to finish quick charging in a short time, and some users need to charge in a slow and long time, and the method can provide intelligent and personalized charging service according to the charging service time of the users.
In some embodiments, the step of dynamically allocating the surplus charging power of the other charging piles in the charging pile group to the current charging pile may include: and under the condition that the sum of the surplus charging power of the other charging piles is greater than or equal to the power shortage of the current charging pile, dynamically distributing the surplus charging power of the other charging piles to the current charging pile according to the sequence of the surplus charging power of the other charging piles from large to small. The power shortage is the difference between the charging power required by the current charging pile and the initial charging power of the current charging pile.
For example, the control cloud platform already distributes the initialization charging power to the current charging pile, but because the charging power required by the current charging pile is greater than the initialization charging power of the current charging pile, the current charging pile still has the lack of power to be distributed. In this embodiment, under the condition that the sum of the surplus charging powers of the other charging piles can meet the power shortage of the current charging pile, the cloud platform is controlled to dynamically allocate the surplus charging powers of the other charging piles to the current charging pile according to the descending order of the surplus charging powers of the other charging piles. Like this can be preferentially from the more than charging pile of surplus charging power to this electric pile that fills at present shifts surplus charging power to under the circumstances of the charging power of electric pile is filled at present in the assurance as far as possible, also do not influence the charging condition of other than the less electric pile of filling of surplus charging power as far as possible.
For example, each charging pile notifies the control cloud platform of the charging power state of the charging pile. Δ Pn1～ΔPnmAnd m is a positive integer, and the surplus charging power of other charging piles is represented. Current fills electric pile's scarce power PDeficiency ofIs composed of
PDeficiency of＝|Pn0-PnU|＝△Pn1+△Pn2+…+△Pnm。 (2)
In some embodiments, the step of dynamically allocating the surplus charging power of the other charging piles in the charging pile group to the current charging pile may include: and under the condition that the sum of the surplus charging power of the other charging piles is less than the power shortage of the current charging pile, dynamically distributing the surplus charging power and at least part of actual charging power of the other charging piles to the current charging pile according to the remaining charging service time of the other charging piles and the charging service time of the current charging pile. The power shortage is the difference between the charging power required by the current charging pile and the initialized charging power of the current charging pile.
In this embodiment, when the sum of the surplus charging powers of the other charging piles is less than the power shortage of the current charging pile, that is, when the surplus charging powers of the other charging piles cannot satisfy the power shortage of the current charging pile, according to the remaining charging service time of the other charging piles and the charging service time of the current charging pile, in addition to dynamically allocating the surplus charging powers of the other charging piles to the current charging pile, at least part of the actual charging powers of the other charging piles is allocated to the current charging pile, so that the current charging pile can obtain the required charging power as much as possible. The method will be described in detail later, by way of example, in connection with fig. 3.
For example, the charging power distributed to the current charging pile by each charging pile of the other charging piles may be determined according to a ratio of a difference between the remaining charging service time of each charging pile of the other charging piles and the charging service time of the current charging pile to a sum of all the differences. For example, the charging power distributed by each charging pile to the current charging pile is positively correlated (e.g., proportional) to the proportion corresponding to each charging pile. For example, the charging power distributed by each charging pile to the current charging pile includes the surplus charging power and part of the actual charging power of each charging pile. The embodiment can ensure that part of the charging power of the charging pile with more residual charging service time is distributed to the current charging pile as far as possible, so that the charging condition of the charging pile with less residual charging service time is not influenced as far as possible.
In some embodiments, the charging service time of the current charging post is less than the charging service time of each of the other charging posts. Therefore, charging service is preferentially completed by the charging pile which is as short as possible in charging service time.
In some embodiments, the method may further comprise: after the charging service is completed by the current charging pile, the charging power is respectively increased for other charging piles. Wherein, every charging pile increases charging power in this other charging piles is greater than this charging pile and distributes to the charging power who fills electric pile at present. In this embodiment, in addition to returning the surplus charging power allocated to the current charging pile to other charging piles, an extra part of charging power is allocated to other charging piles, so that it is possible to ensure that other charging piles complete charging services according to their respective charging service times.
Fig. 3 is a schematic diagram illustrating a method of distributing charging power according to some embodiments of the present disclosure.
When the total power of the charging pile group exceeds the rated power (or called region outlet power) of the region after the charging piles are started according to the charging service time of the user, the algorithm is as follows. As shown in fig. 3, it is assumed that there are 4 charging piles in a certain area. The charging piles No. 1, No. 2 and No. 3 are started and work normally at constant charging power of P1, P2 and P3 respectively. When the 4 th charging pile (namely the charging pile No. 4) is added, the power value is calculated to be P4 according to the charging service time of the user, but P1+ P2+ P3+ P4 exceeds the rated power P of the regionGeneral assembly. In order to ensure that the user of the charging post No. 4 normally completes the charging service, part of the charging power (charging right) is temporarily extracted from each of P1 to P3 to supplement to P4, and the extracted power value is determined according to the proportion of the time difference.
For example, the partial power P14 extracted by the No. 1 charging pile is
Figure BDA0001913227570000111
The partial power P24 extracted by the No. 2 charging pile is
Figure BDA0001913227570000112
The partial power P34 extracted by the No. 3 charging pile is
Figure BDA0001913227570000113
The method comprises the steps that delta P is the power shortage of the current charging pile, delta t1 is the remaining charging service time of the number 1 charging pile, delta t2 is the remaining charging service time of the number 2 charging pile, delta t3 is the remaining charging service time of the number 3 charging pile, and ∑ delta t is delta t1+ delta t2+ delta t 3.
After the charging service of the charging post No. 4 is completed, a part of the charging power is replenished to each charging post in addition to returning the extracted charging power to each charging post, so that the charging power of each charging post is updated to P1', P2' and P3', and at this time, P1'>P1，P2'>P2，P3'>P3. If the sum of the power of all the working charging piles is still larger than P after the updateGeneral assemblyAnd then, the algorithm is used again to ensure that the charging pile with the shortest residual charging service time preferentially completes the charging service.
Fig. 4 is a flow chart illustrating a method of allocating charging power according to further embodiments of the present disclosure. As shown in fig. 4, the method may include steps S401 to S413.
In step S401, the electric vehicle is connected to the current charging pile.
In step S402, a charge amount required for the electric vehicle is obtained.
At step S403, the user makes a charging contract.
In step S404, the charging service time is obtained according to the charging contract.
In step S405, the charging power required by the current charging pile is calculated.
In step S406, the magnitude relationship between the required charging power and the initialization charging power Pn0 of the current charging pile is compared. In the case where the required charging power is equal to or less than Pn0, the process proceeds to step S407; in the case where the required charging power > Pn0, the process proceeds to step S408.
In step S407, Δ P (i.e., the portion of Pn0 that exceeds the required charging power) is calculated and notified to control the cloud platform.
In step S408, the power shortage of the current charging pile (i.e., the portion of the required charging power exceeding Pn 0) is calculated.
In step S409, it is determined whether the sum of the surplus charging powers of the other charging piles is greater than or equal to the power shortage of the current charging pile. If so, the process proceeds to step S410; otherwise the process advances to step S411.
In step S410, the surplus charging power of other charging piles is dynamically allocated to the current charging pile.
In step S411, the surplus charging power and at least a portion of the actual charging power of the other charging piles are dynamically allocated to the current charging pile according to the charging service time.
In step S412, it is determined whether an allocation scheme exists. I.e. to determine whether an implementable allocation scheme is available. If so, the process advances to step S413; otherwise the process returns to step S403.
In step S413, the charging service is executed by contract.
To this end, methods of allocating charging power according to further embodiments of the present disclosure are provided. The method can be combined with a control cloud platform, a planning and dynamic distribution method of charging power of the charging pile group is introduced into the system, and even if the required power of the charging pile group exceeds the rated power of the region, the charging service can be guaranteed according to the dynamic distribution method and the contract time of a user as far as possible. Therefore, the method can deploy charging piles as much as possible under the condition of ensuring the safety of the power grid (namely, not exceeding the rated power of the area). The charging service can be guaranteed according to the actual time requirements of customers, the usability of the charging pile group can be guaranteed, and the deployment scale and the use efficiency of the charging pile are greatly improved.
Fig. 5 is a schematic diagram illustrating an architecture of a control cloud platform according to some embodiments of the present disclosure. As shown in fig. 5, the control cloud platform includes an acquisition unit 502, a calculation unit 504, and an allocation unit 506.
The obtaining unit 502 may be configured to obtain a charging amount required by an electric vehicle connected to the current charging pile and a charging contract of a user. The charging contract includes a charging service time.
The calculation unit 504 may be configured to calculate a charging power required by the current charging pile according to the charging amount and the charging service time.
The distribution unit 506 may be configured to distribute charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile.
Wherein, the allocating unit 506 directly configures the required charging power to the current charging pile to execute the charging contract when the required charging power is less than or equal to the initialized charging power of the current charging pile; and under the condition that the required charging power is larger than the initialized charging power of the current charging pile, dynamically distributing the surplus charging power of other charging piles in the charging pile group to the current charging pile. The surplus charging power of each charging pile is the part of the initial charging power of the charging pile exceeding the actual charging power of the charging pile.
Thus, a control cloud platform is provided according to some embodiments of the present disclosure. The control cloud platform realizes distribution of charging power. The control cloud platform can be used for deploying charging piles as much as possible in an area with certain total power supply power, and under the condition that the safety of a power grid is guaranteed, so that more users can be served. And the control cloud platform can provide intelligent and personalized charging service according to the charging service time of the user.
In some embodiments, the initial charging power of at least some of the charging piles is less than the rated charging power of the charging piles.
In some embodiments, the sum of the initial charging powers of all charging piles of the charging pile group is less than or equal to the area rated power of the area in which the charging pile group is located.
In some embodiments, the allocating unit 506 may be configured to dynamically allocate the surplus charging powers of the other charging piles to the current charging pile according to an order of the surplus charging powers of the other charging piles from large to small when the sum of the surplus charging powers of the other charging piles is greater than or equal to the power shortage of the current charging pile. The power shortage is the difference between the charging power required by the current charging pile and the initial charging power of the current charging pile.
In other embodiments, the allocating unit 506 may be configured to dynamically allocate the surplus charging power and at least part of the actual charging power of the other charging piles to the current charging pile according to the remaining charging service time of the other charging piles and the charging service time of the current charging pile, when the sum of the surplus charging power of the other charging piles is less than the power shortage of the current charging pile. The power shortage is the difference between the charging power required by the current charging pile and the initial charging power of the current charging pile.
In some embodiments, the allocating unit 506 may be configured to determine the charging power allocated to the current charging pile by each of the other charging piles according to a ratio of a difference between the remaining charging service time of each of the other charging piles and the charging service time of the current charging pile to a sum of all the differences. Wherein, each charging pile is in positive correlation with the proportion corresponding to each charging pile to the charging power distributed by the current charging pile.
In some embodiments, the distribution unit 506 may be further configured to increase the charging power for the other charging piles after the charging service of the current charging pile is completed. And the charging power added by each charging pile in the other charging piles is greater than the charging power distributed to the current charging pile by the charging pile.
In some embodiments, the charging service time of the current charging post is less than the charging service time of each of the other charging posts.
Fig. 6 is a schematic diagram illustrating a structure of a control cloud platform according to further embodiments of the present disclosure. The control cloud platform includes a memory 610 and a processor 620. Wherein:
the memory 610 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used for storing instructions in the embodiments corresponding to fig. 1 and/or fig. 4.
Processor 620 is coupled to memory 610 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 620 is configured to execute instructions stored in the memory such that distribution of charging power may be achieved. The control cloud platform can be used for deploying charging piles as much as possible in an area with certain total power supply power, and under the condition that the safety of a power grid is guaranteed, so that more users can be served. And the control cloud platform can provide intelligent and personalized charging service according to the charging service time of the user.
In some embodiments, as also shown in fig. 7, the control cloud platform 700 includes a memory 710 and a processor 720. Processor 720 is coupled to memory 710 by BUS 730. The control cloud platform 700 may also be connected to an external storage device 750 via a storage interface 740 for invoking external data, and may also be connected to a network or another computer system (not shown) via a network interface 760, which will not be described in detail herein.
In this embodiment, the charging power may be distributed by storing data instructions in the memory and processing the instructions in the processor. The control cloud platform can be used for deploying charging piles as much as possible in an area with certain total power supply power, and under the condition that the safety of a power grid is guaranteed, so that more users can be served. And the control cloud platform can provide intelligent and personalized charging service according to the charging service time of the user.
There is also provided, in accordance with some embodiments of the present disclosure, a system for distributing charging power, including: a charging pole and a control cloud platform as previously described (e.g., the control cloud platform shown in fig. 5, 6, or 7). The system utilizes the characteristics of centralized management and control and distributed control of the control cloud platform, realizes the deployment of the number of the charging piles as much as possible under the condition of certain total power, and meets the diversified requirements of users through a dynamic distribution method of charging power based on charging service time. In addition, the system can be applied to resource sharing in a shared economy mode (such as bandwidth, storage, computing power sharing and the like in a region).
For example, the charging post may be an intelligent charging post. The charging pile can sense the charging amount required by the electric automobile and is additionally provided with a time management module for processing time parameters in a charging contract of a user. The control cloud platform can manage and dynamically distribute charging power of the charging piles.
In some embodiments, the system may also include an intelligent charging pile network. The intelligent charging pile group network can complete dynamic distribution of charging power among charging piles under management of a control cloud platform.
In some embodiments, the present disclosure also provides a computer-readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the steps of the method in the corresponding embodiments of fig. 1 and/or fig. 4. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The method and system of the present disclosure may be implemented in a number of ways. For example, the methods and systems of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (17)

1. A method of distributing charging power, comprising:
acquiring a charging amount required by an electric automobile connected with a current charging pile and a charging contract of a user, wherein the charging contract comprises charging service time;
calculating the charging power required by the current charging pile according to the charging amount and the charging service time; and
distributing charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile;
wherein, in case the required charging power is less than or equal to the initialization charging power, directly configuring the required charging power to the current charging post to execute the charging contract; and under the condition that the required charging power is greater than the initialized charging power, dynamically distributing surplus charging power of other charging piles in the charging pile group to the current charging pile, wherein the surplus charging power of each charging pile is a part of the initialized charging power of the charging pile exceeding the actual charging power of the charging pile.
2. The method of claim 1, wherein dynamically allocating the surplus charging power of other charging piles in a charging pile group to the current charging pile comprises:
when the sum of the surplus charging powers of the other charging piles is larger than or equal to the power shortage of the current charging pile, dynamically distributing the surplus charging powers of the other charging piles to the current charging pile according to the sequence of the surplus charging powers of the other charging piles from large to small; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
3. The method of claim 1, wherein dynamically allocating the surplus charging power of other charging piles in a charging pile group to the current charging pile comprises:
under the condition that the sum of the surplus charging power of the other charging piles is smaller than the power shortage of the current charging pile, dynamically distributing the surplus charging power and at least part of actual charging power of the other charging piles to the current charging pile according to the remaining charging service time of the other charging piles and the charging service time of the current charging pile; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
4. The method of claim 3, wherein,
determining the charging power distributed to the current charging pile by each of the other charging piles according to the proportion of the difference value between the residual charging service time of each of the other charging piles and the charging service time of the current charging pile to the sum of all the difference values;
and each charging pile is in positive correlation with the charging power distributed by the current charging pile and the proportion corresponding to each charging pile.
5. The method of claim 3, further comprising:
and after the charging service of the current charging pile is completed, respectively increasing charging power for the other charging piles, wherein the charging power increased by each charging pile in the other charging piles is greater than the charging power distributed to the current charging pile by the charging pile.
6. The method of claim 3, wherein,
and the charging service time of the current charging pile is less than the charging service time of each charging pile of the other charging piles.
7. The method of claim 1, wherein,
the initial charging power of at least part of the charging piles in the charging pile group is smaller than the rated charging power of the charging piles;
and the sum of the initialized charging power of all charging piles of the charging pile group is less than or equal to the area rated power of the area where the charging pile group is located.
8. A control cloud platform, comprising:
the charging system comprises an acquisition unit, a charging unit and a charging unit, wherein the acquisition unit is used for acquiring a charging amount required by an electric vehicle connected with a current charging pile and a charging contract of a user, and the charging contract comprises charging service time;
the calculation unit is used for calculating the charging power required by the current charging pile according to the charging amount and the charging service time; and
the distribution unit is used for distributing charging power to the current charging pile according to the required charging power and the initialized charging power of the current charging pile;
wherein, in case the required charging power is less than or equal to the initialization charging power, directly configuring the required charging power to the current charging post to execute the charging contract; and under the condition that the required charging power is greater than the initialized charging power, dynamically distributing surplus charging power of other charging piles in the charging pile group to the current charging pile, wherein the surplus charging power of each charging pile is a part of the initialized charging power of the charging pile exceeding the actual charging power of the charging pile.
9. The control cloud platform of claim 8,
the distribution unit is used for dynamically distributing the surplus charging power of the other charging piles to the current charging pile according to the sequence of the surplus charging power of the other charging piles from large to small under the condition that the sum of the surplus charging power of the other charging piles is larger than or equal to the power shortage of the current charging pile; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
10. The control cloud platform of claim 8,
the distribution unit is used for dynamically distributing the surplus charging power and at least part of actual charging power of other charging piles to the current charging pile according to the remaining charging service time of the other charging piles and the charging service time of the current charging pile under the condition that the sum of the surplus charging power of the other charging piles is less than the power shortage of the current charging pile; the power shortage is the difference value between the charging power required by the current charging pile and the initial charging power of the current charging pile.
11. The control cloud platform of claim 10,
the distribution unit is used for determining the charging power distributed to the current charging pile by each charging pile of the other charging piles according to the proportion of the difference value between the residual charging service time of each charging pile of the other charging piles and the charging service time of the current charging pile to the sum of all the difference values;
and each charging pile is in positive correlation with the charging power distributed by the current charging pile and the proportion corresponding to each charging pile.
12. The control cloud platform of claim 10,
the distribution unit is further configured to respectively increase charging power for the other charging piles after the charging service of the current charging pile is completed, wherein the charging power increased by each charging pile in the other charging piles is greater than the charging power distributed to the current charging pile by the charging pile.
13. The control cloud platform of claim 10,
and the charging service time of the current charging pile is less than the charging service time of each charging pile of the other charging piles.
14. The control cloud platform of claim 8,
the initial charging power of at least part of the charging piles in the charging pile group is smaller than the rated charging power of the charging piles;
and the sum of the initialized charging power of all charging piles of the charging pile group is less than or equal to the area rated power of the area where the charging pile group is located.
15. A control cloud platform, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-7 based on instructions stored in the memory.
16. A system for distributing charging power, comprising: a charging pile and a control cloud platform according to any one of claims 8 to 15.
17. A computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any one of claims 1 to 7.
CN201811560884.0A 2018-12-20 2018-12-20 Charging power distribution method, control cloud platform and system Pending CN111347910A (en)

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