CN110509807B - Power distribution method, system and terminal equipment - Google Patents

Power distribution method, system and terminal equipment Download PDF

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Publication number
CN110509807B
CN110509807B CN201910696994.8A CN201910696994A CN110509807B CN 110509807 B CN110509807 B CN 110509807B CN 201910696994 A CN201910696994 A CN 201910696994A CN 110509807 B CN110509807 B CN 110509807B
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charging
module
modules
selectable
guns
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CN110509807A (en
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洪金追
邱祖芳
徐晓翔
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Xiamen Kehua Hengsheng Co Ltd
Zhangzhou Kehua Technology Co Ltd
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Xiamen Kehua Hengsheng Co Ltd
Zhangzhou Kehua Technology Co 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • 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
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention is suitable for the technical field of charging, and discloses a power distribution method, a system and terminal equipment, wherein the power distribution method comprises the following steps: acquiring the total number of charging guns and the number of charging modules included in each charging module, wherein each charging gun corresponds to one charging module, and the output power of each charging module is the same; generating an equipartition matrix according to the total number of the charging guns and the number of the charging modules included in each charging module, wherein the equipartition matrix stores selectable charging modules corresponding to each charging gun when the charging guns with different numbers work; according to the equipartition matrix and the preset equipartition rule, when the work quantity of the charging guns is dynamically switched, the charging guns which are working are distributed with the charging modules. The invention can reduce workload, improve the efficiency of power distribution and further improve charging efficiency.

Description

Power distribution method, system and terminal equipment
Technical Field
The invention belongs to the technical field of charging, and particularly relates to a power distribution method, a power distribution system and terminal equipment.
Background
With the development of technology, electric vehicles are widely used, and therefore, charging devices are becoming hot spots of research, and accordingly, how to distribute power during charging is also a subject of research of more and more people.
At present, the power distribution is usually realized by adopting an exhaustive method, but the method has the disadvantages of large workload and low efficiency.
Disclosure of Invention
In view of this, embodiments of the present invention provide a power allocation method, system and terminal device, so as to solve the problems of large workload and low efficiency in the prior art.
A first aspect of an embodiment of the present invention provides a power allocation method, including:
acquiring the total number of charging guns and the number of charging modules included in each charging module, wherein each charging gun corresponds to one charging module, and the output power of each charging module is the same;
generating an equipartition matrix according to the total number of the charging guns and the number of the charging modules included in each charging module, wherein the equipartition matrix stores selectable charging modules corresponding to each charging gun when the charging guns with different numbers work;
according to the equipartition matrix and the preset equipartition rule, when the work quantity of the charging guns is dynamically switched, the charging guns which are working are distributed with the charging modules.
A second aspect of an embodiment of the present invention provides a power distribution system, including:
the acquisition module is used for acquiring the total number of the charging guns and the number of the charging modules included in each charging module, wherein each charging gun corresponds to one charging module, and the output power of each charging module is the same;
the charge module generating module is used for generating a charge module according to the total number of the charge guns and the number of the charge modules included in each charge module, wherein the charge modules which are selectable and correspond to each charge gun when the charge guns with different numbers work are stored in the charge module;
and the distribution module is used for distributing the charging module for the working charging guns when the working quantity of the charging guns is dynamically switched according to the equipartition matrix and the preset equipartition rule.
A third aspect of embodiments of the present invention provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the power allocation method according to the first aspect when executing the computer program.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium, which stores a computer program, which when executed by one or more processors implements the steps of the power distribution method according to the first aspect.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: according to the embodiment of the invention, the total number of charging guns and the number of charging modules included in each charging module are firstly obtained, then an averaging matrix is generated according to the total number of the charging guns and the number of the charging modules included in each charging module, wherein the averaging matrix stores selectable charging modules corresponding to each charging gun when different numbers of charging guns work, and finally, according to the averaging matrix and a preset averaging rule, when the working number of the charging guns is dynamically switched, the charging modules are distributed to the working charging guns, so that the problems of large workload and low efficiency can be solved, the workload can be reduced, the power distribution efficiency can be improved, and the charging efficiency can be further improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a charging system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an implementation of a power allocation method according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of an implementation of a power allocation method according to another embodiment of the present invention;
fig. 4 is a schematic flow chart of an implementation of a power allocation method according to still another embodiment of the present invention;
fig. 5 is a schematic flow chart of an implementation of a power allocation method according to another embodiment of the present invention;
FIG. 6 is a schematic block diagram of a power distribution system provided by an embodiment of the present invention;
fig. 7 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a schematic structural diagram of a charging system according to an embodiment of the present invention. As shown in fig. 1, each charging module corresponds to one charging gun, the total number of the charging modules is N, and fig. 1 is a system architecture in which N charging modules correspond to N charging guns.
Each charging module group may include a plurality of charging modules, and the number of charging modules included in the charging module group i may be represented as miAssuming that the output power of each charging module is 15K, the total power of the charging system is
Figure BDA0002149647670000031
The charging module may be a device that converts ac power obtained from a system power supply (e.g., a commercial power supply) into dc power for charging, and the charging gun may be a device that is connected to a device to be charged (e.g., an electric vehicle) and charges a battery of the device to be charged.
Each charging gun has a charging module directly connected to it, which is called the bus charging module of the charging gun. The charging gun is connected with the non-bus charging module through a power switch. The charging modules except the bus charging module of the charging gun are non-bus charging modules of the charging gun. The number of the power switches corresponding to the ring topology of the N charging modules is N (N-1)/2.
For example, for the charging gun 1, the charging module 1 is a bus module of the charging gun 1, and the charging modules 2 to N are non-bus modules of the charging gun 1.
Fig. 2 is a schematic flow chart of an implementation of the power allocation method according to an embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown. The execution main body of the embodiment of the invention can be terminal equipment. As shown in fig. 2, the method may include the steps of:
s201: the total number of the charging guns and the number of the charging modules included by each charging module are obtained, wherein each charging gun corresponds to one charging module, and the output power of each charging module is the same.
In the embodiment of the invention, firstly, the total number N of charging guns and the number m of charging modules included in each charging module i are obtainedi. Wherein, every output power that charges the module is the same all, and every rifle that charges corresponds a module that charges.
S202: and generating an equipartition matrix according to the total number of the charging guns and the number of the charging modules included by each charging module, wherein the equipartition matrix stores selectable charging modules corresponding to each charging gun when the charging guns with different numbers work.
The equalization matrix may be described by taking the charging module as a basic unit, and according to a charging module pool (i.e., a set of multiple charging modules) that is configurable when different charging guns are simultaneously charged. The guarantee of the power sharing or the basic power sharing is based on the sharing relative mutual exclusion principle presented by the charging module in the sharing mode. The principle of equal division relative mutual exclusion can be specifically analyzed as that under the equal division mode, one charging module does not have the possibility of belonging to two charging guns at the same time, so that under the equal division mode, the distribution of the charging modules can show an equal division extrusion effect. The equipartition extrusion effect can be that when the condition of the charge gun equipartition power is met, the charge modules which do not belong to the charge gun equipartition naturally extrude due to the algorithm logic of the equipartition matrix and become in an assignable state.
Based on the above assumptions, the composition principle of the equipartition matrix can be the power combination through the charging module, to realize the equipartition of the charging gun, and the power combination of the charging module needs to be specifically defined according to the charging gun being charged at the same time.
In the embodiment of the invention, the equipartition matrix can be generated according to the total number of the charging guns and the number of the charging modules included in each charging module. The equipartition matrix stores selectable charging modules corresponding to charging guns in different quantities when the charging guns work.
S203: according to the equipartition matrix and the preset equipartition rule, when the work quantity of the charging guns is dynamically switched, the charging guns which are working are distributed with the charging modules.
In the embodiment of the present invention, according to the generated averaging matrix and the preset averaging rule, when the number of charging guns is dynamically switched, the charging module is allocated to the charging gun that is working, so that the power average allocation or the power basic average allocation is achieved. The charging gun which is working is a charging gun which is charging equipment needing charging.
Optionally, allocating a charging module to the charging gun in operation may include:
the charging module assigned to the working charging gun is sent to the working charging gun, and the charging module can be used for instructing the working charging gun to automatically switch out (for example, turn off a power switch) the charging module which is not in a connection state with the working charging gun and belongs to the charging module according to the charging module, and automatically switch in (for example, turn on the power switch) the charging module which is not in the connection state with the working charging gun and belongs to the charging module.
As can be seen from the above description, according to the embodiment of the present invention, through the averaging matrix and the preset averaging rule, when the working number of the charging guns is dynamically switched, the charging modules are allocated to the charging guns that are working, so as to achieve power average allocation or basic average allocation, where the power average allocation can avoid a situation that a certain device that needs to be charged can be quickly charged and other devices that need to be charged can be charged only for a long time; compared with an exhaustion method, the power distribution method provided by the embodiment of the invention can reduce workload, improve the efficiency of power distribution, further improve the charging efficiency, and integrally improve the charging efficiency of each device to be charged.
Fig. 3 is a schematic flow chart of an implementation of a power allocation method according to another embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown. As shown in fig. 3, the step S202 may include the following steps:
s301: when the number of the charging guns working is a first number, calculating the average number of the charging guns of the first number when the charging guns work according to the number of the charging modules included in each charging module and the first number, wherein the first number is any positive integer which is larger than or equal to 1 and smaller than or equal to the total number of the charging guns.
In an embodiment of the present invention, the calculation formula for calculating the average number of modules of the first number of charging guns in operation according to the number of charging modules included in each charging module and the first number is as follows:
Figure BDA0002149647670000061
wherein p is a first number,
Figure BDA0002149647670000062
for a first number p of charge guns operating on the average number of modules, miThe number of charging modules included in the charging module i, and the number of charging modules N.
In the embodiment of the invention, the average module number when the first number is any positive integer from 1 to N is respectively calculated. That is, when the number of charging guns in operation is 1, the calculation is made
Figure BDA0002149647670000063
When the number of charging guns in operation is 2, the calculation is made
Figure BDA0002149647670000064
By analogy, when the number of the charging guns working is N, calculating
Figure BDA0002149647670000065
S302: according to the number of the charging modules included by the average module number and the bus charging module of the first charging gun, the number of the remaining selectable modules corresponding to the first charging gun is calculated when the charging guns of the first number work, wherein the first charging gun is any one of the charging guns working, and the bus charging module of the first charging gun is a charging module directly connected with the first charging gun.
In the embodiment of the invention, when the first number of charging guns work, the number of the remaining selectable modules corresponding to the first charging gun is a difference value obtained by subtracting the number of the charging modules included in the bus charging module of the first charging gun from the average module number of the first number of charging guns when the first charging gun works. The first charging gun is any one of charging guns working at present, and the bus charging module of the first charging gun is a charging module directly connected with the first charging gun, namely the charging module connected with the power switch is not used.
And respectively calculating the number of the remaining selectable modules corresponding to the charging guns which are working when the charging guns with different numbers are working.
S303: and selecting other charging modules with the number of the charging modules smaller than or equal to the number of the remaining selectable modules as selectable charging modules corresponding to the first charging gun when the first number of charging guns work, wherein the other charging modules are charging modules except the bus charging module of the first charging gun.
In an embodiment of the present invention, when the first number of charging guns operate, the selectable charging modules corresponding to the first charging gun are other charging modules that include charging modules whose number is less than or equal to the number of the remaining selectable modules corresponding to the first charging gun when the first number of charging guns operate, where the other charging modules are charging modules other than the bus charging module of the first charging gun, that is, non-bus modules of the first charging gun.
In a specific application scenario, a 4-gun ring topology is taken as an example, that is, the total number of charging guns is 4, and the number of charging modules is also 4. The quantity of the module of charging that module 1 includes of charging is 2, and the quantity of the module of charging that module 2 includes of charging is 4, and the quantity of the module of charging that module 3 includes of charging is 4, and the quantity of the module of charging that module 4 of charging corresponds is 2.
When the first number is 1, the first number,
Figure BDA0002149647670000071
at this time, the number of the remaining selectable modules corresponding to the charging gun 1 is 12-2 to 10, and the number of the charging modules included in the charging module 2, the charging module 3, and the charging module 4 is less than 10, so that the charging module 2, the charging module 3, and the charging module 4 are all selectable charging modules when the charging gun 1 operates in the gun 1 operating mode (i.e., one charging gun is operating). In the 1 gun operating mode (i.e., one charging gun is operating), the calculation process for the other charging guns is similar and will not be described herein. The results are shown in Table 1.
Equipartition matrix corresponding to gun-shaped topology of watch 14
Figure BDA0002149647670000072
When the first number is 2, the first number,
Figure BDA0002149647670000073
at this time, the number of the remaining selectable modules corresponding to the charging gun 1 is 6-2 ═ 4, and the number of the charging modules included in the charging module 2, the charging module 3, and the charging module 4 is less than or equal to 4, so that the charging module 2, the charging module 3, and the charging module 4 are all selectable charging modules when the charging gun 1 operates in the 2-gun operating mode (i.e., two charging guns are operating).
The number of the remaining optional modules corresponding to the charging gun 2 is 6-4 ═ 2, and the number of the charging modules included in the charging module 1 and the charging module 4 is less than or equal to 2, so that the charging module 1 and the charging module 4 are the optional charging modules during the operation of the charging gun 2 in the 2-gun operation mode (i.e., two charging guns are working). The calculation processes of other charging guns are similar and are not described in detail herein. The results are shown in Table 1.
In the 3-gun operating mode and the 4-gun operating mode, the specific calculation process is similar to the above process, and is not described herein again. The generated equipartition matrix is shown in table 1, where table 1 is only an example of the equipartition matrix, and the equipartition matrix may be represented in other forms. Wherein, the rifle output quantity that charges is the quantity of the rifle that charges of working, and in the optional module that charges, 0 indicates not having the optional module that charges, and other figures are the number of the corresponding module that charges respectively. When the charging gun in operation has no selectable charging module, the charging gun is in the working state. For example, in table 1, when the number of charging gun outputs is 3, both charging guns 2 and 3 are in an operating state, otherwise, the charging guns are not in an operating state, and the mode fails.
Fig. 4 is a schematic flow chart of an implementation of a power allocation method according to still another embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown. As shown in fig. 4, the "preset averaging rule" in step S203 may include:
s401: and distributing the bus bar charging module of the first charging gun to the first charging gun.
In the embodiment of the invention, each bus charging module of the charging gun is a charging module to which the charging gun must be distributed, namely, each bus charging module of the working charging gun is distributed to the corresponding working charging gun.
S402: and acquiring the number of the charging guns which are working, recording the number as a second number, and recording the selectable charging modules corresponding to the first charging guns as first selectable charging modules when the charging guns of the second number work according to the equipartition matrix.
In the embodiment of the present invention, according to the generated averaging matrix, the selectable charging modules corresponding to the charging guns that are working when the second number of charging guns are working can be obtained.
For convenience of description, when the second number of charging guns work, the selectable charging module corresponding to the first charging gun is denoted as a first selectable charging module.
S403: if the first optional charging module comprises the bus charging module of other charging guns, the bus charging module of other charging guns is removed from the first optional charging module, and the current first optional charging module is marked as a second optional charging module, wherein the other charging guns are the charging guns which are working except the first charging gun.
If the first optional charging module comprises the bus charging module of other working charging guns, the bus charging module is removed from the first optional charging module, and the first optional charging module with the bus charging module removed is marked as a second optional charging module. Namely, the bus charging module of the charging gun in the working state is eliminated.
In the embodiment of the present invention, a new definition is given to the other charging guns, that is, the other charging guns are the charging guns that are operating other than the first charging gun.
S404: and acquiring the number of the remaining selectable modules corresponding to the first charging gun when the second number of charging guns work, and recording the number of the remaining selectable modules as the target number of the remaining selectable modules.
According to the calculation process in step S302, the number of the remaining selectable modules corresponding to the first charging gun when the second number of charging guns are operating can be obtained. And the number of the target remaining selectable modules is the number of the remaining selectable modules corresponding to the first charging gun when the second number of charging guns work.
S405: and selecting the charging module distributed to the first charging gun from the second selectable charging modules according to the target remaining selectable module quantity, and distributing the selected charging module distributed to the first charging gun.
In the embodiment of the invention, according to the number of the remaining selectable modules of the target, the charging module distributed to the first charging gun can be selected from the second selectable charging modules, and after the selection is completed, the selected charging module distributed to the first charging gun is distributed to the first charging gun.
S406: if there are still unassigned charging modules in the first selectable charging modules, then the unassigned charging modules are assigned to the first charging gun.
Wherein, the charging module that does not distribute is the idle charging module of the rifle that charges that does not distribute to working.
If there are still unassigned charging modules in the first selectable charging modules, the unassigned charging modules are assigned to the first charging gun.
Optionally, the terminal device sends the charging modules (numbers) allocated to the respective charging guns to the corresponding charging guns, and the charging guns may automatically switch out the charging modules not allocated to the charging guns, or may automatically switch in the charging modules allocated to the charging guns.
Fig. 5 is a schematic flow chart of an implementation of a power allocation method according to another embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown. As shown in fig. 5, the step S405 of selecting the charging module allocated to the first charging gun from the second selectable charging modules according to the target remaining selectable module number may include the following steps:
s501: and selecting a first charging module from second selectable charging modules as a charging module distributed to the first charging gun, wherein the first charging module is the second selectable charging module which has the smallest difference between the number of the included charging modules and the number of the target remaining selectable modules in all the second selectable charging modules with the number of the included charging modules smaller than or equal to the number of the target remaining selectable modules.
Firstly, selecting a second selectable charging module from the second selectable charging modules, wherein the number of the included charging modules is less than or equal to the number of the target remaining selectable modules, and marking the second selectable charging module as a to-be-selected charging module; then, from the charging modules to be selected, the charging module with the smallest difference between the number of the charging modules included and the number of the target remaining selectable modules is selected and recorded as a first charging module, and the method specifically comprises the following steps: and respectively calculating the difference value of subtracting the number of the charging modules included by the charging module to be selected from the number of the target remaining selectable modules, and selecting the charging module to be selected corresponding to the minimum difference value in all the difference values, wherein the charging module to be selected is the first charging module. The first charging module is the selected charging module distributed to the first charging gun.
S502: and taking the difference obtained by subtracting the number of the charging modules included in the first charging module from the number of the target remaining selectable modules as the new number of the target remaining selectable modules, and removing the first charging module from the second selectable charging module to obtain a new second selectable charging module.
S503: if the first charging module still exists in the second selectable charging modules, the step of selecting the first charging module from the second selectable charging modules as the charging module distributed to the first charging gun is continuously executed until the first charging module does not exist in the second selectable charging modules.
If the first charging module still exists in the second selectable charging module, returning to the step S501 for cycle execution; and if the second selectable charging module does not have the first charging module, finishing the selection, and finishing the circulation, wherein each selected first charging module is the selected charging module distributed to the first charging gun.
In a specific application scenario, a 4-gun ring topology in the above application scenario is taken as an example. Assuming that the number of charging guns that are operating is 1 and the charging gun 1 is operating, the charging modules allocated to the charging gun 1 are the charging modules 1 to 4. It is assumed that the charging gun 3 enters an operating state at this time. The analysis was started as follows:
1) according to table 1, in the gun mode of operation 1, the charging modules 2 to 4 are equally distributed to the charging gun 1, and according to S401, the charging module 1 is also distributed to the charging gun 1.
2) According to S401 to S403, the charging module 3 is automatically cut out by the charging gun 1, and the charging module 3 is assigned to the charging gun 3.
3) According to table 1, in the gun 2 working mode, the charging modules of the charging gun 1 can be selected to be 2, 3 and 4, but since the charging module 3 is cut out, the charging modules corresponding to the charging gun 1 can be selected to be 2 and 4, and according to S404, S405 and S501 to S503, the charging module selected by the charging gun 1 is 2, and at this time, the charging gun 1 automatically cuts out the charging module 4; the charging modules 1 and 4 are selectable for the charging gun 3, but according to S401 to S403, the charging gun 3 excludes the bus charging module of the charging gun 1 that is operating, that is, excludes the charging module 1, and at this time, the charging module 4 has been cut out by the charging gun 1 and is in an idle state, and therefore, the charging gun 3 is put into the charging module 4.
4) Assuming that the charging gun 2 enters the operating state, the charging gun 1 automatically switches out the charging module 2 according to S401 to S403.
5) According to the table 1, in the 3-gun operation mode, the charging module 4 does not belong to the charging gun 3, and therefore, the charging gun 3 automatically cuts out the charging module 4.
6) According to table 1, under 3 rifle mode, the module of charging of 1 optional of rifle is 4, and the module 4 that charges is in idle state this moment, and the rifle 1 that charges is automatic to be put into the module 4 that charges.
In the application scene, the charging module 4 is automatically withdrawn from the charging gun 3, and the equal-division extrusion effect is met. Should equally divide and extrude the effect and can let the procedure compile and realize the decoupling zero, every rifle that charges independently manages self module that charges, equally divide under the control, other rifle that charges can extrude idle module that charges naturally, only need wait in this rifle that charges idle module according to the rule screening of equalling divide that the aforesaid is predetermineeing can, make things convenient for the procedure to realize.
As can be seen from the above description, in the case of dynamically switching the number of charging guns, the logic of the embodiment of the present invention is simple, and there is no need to wait for the hard execution to complete. Because the charging module is pre-charged and merged in the starting process, and the parallel contactor is merged in the low-speed control, the change of the number of charging guns under the condition of dynamic switching of half is not excluded, and good dynamic switching can be realized without causing asynchronous states as long as the preset uniform division rule is followed. As is known, when the states are not synchronized, the parallel operation contactor is not turned off, the charging module is not turned off, or the charging module is turned off, but the logic attribute is not switched, the switching system is broken down. If the contactor is selected, it may be necessary to wait for the complete switching to complete before responding to the change in the number of charging guns, which makes the program logic sequence control more complicated and brings out the risk of asynchronization. The power allocation rule provided by the embodiment of the invention can avoid the risks.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Fig. 6 is a schematic block diagram of a power distribution system according to an embodiment of the present invention, and only a part related to the embodiment of the present invention is shown for convenience of explanation.
In the embodiment of the present invention, the power distribution system 60 may include an obtaining module 601, an averaging matrix generating module 602, and a distributing module 603.
The acquiring module 601 is configured to acquire the total number of charging guns and the number of charging modules included in each charging module, where each charging gun corresponds to one charging module, and output power of each charging module is the same;
an equipartition matrix generation module 602, configured to generate an equipartition matrix according to the total number of charging guns and the number of charging modules included in each charging module, where a selectable charging module corresponding to each charging gun when charging guns of different numbers are working is stored in the equipartition matrix;
and the distribution module 603 is configured to distribute the charging modules to the working charging guns according to the equal distribution matrix and the preset equal distribution rule when the working quantity of the charging guns is dynamically switched.
Optionally, the equipartition matrix generation module 602 may include an average module number calculation unit, a remaining optional module number calculation unit, and a charging module selection unit;
the device comprises an average module number calculating unit, a charging module setting unit and a charging module setting unit, wherein the average module number calculating unit is used for calculating the average module number of the charging guns of the first number when the charging guns which are working are the first number according to the number of the charging modules included in each charging module and the first number, and the first number is any positive integer which is greater than or equal to 1 and is less than or equal to the total number of the charging guns;
the system comprises a residual optional module quantity calculating unit, a bus charging module calculating unit and a bus charging module calculating unit, wherein the residual optional module quantity calculating unit is used for calculating the residual optional module quantity corresponding to a first charging gun when the charging guns with the first quantity work according to the average module quantity and the quantity of the charging modules included by the bus charging module of the first charging gun, the first charging gun is any one of the working charging guns, and the bus charging module of the first charging gun is a charging module directly connected with the first charging gun;
the charging module selecting unit is used for selecting other charging modules with the number of the charging modules smaller than or equal to the number of the remaining selectable modules as selectable charging modules corresponding to the first charging gun when the charging guns with the first number work, wherein the other charging modules are charging modules except the bus charging module of the first charging gun.
Optionally, the preset equipartition rule in the allocation module 603 may include:
distributing a bus bar charging module of the first charging gun to the first charging gun;
acquiring the number of working charging guns, recording the number as a second number, and recording a selectable charging module corresponding to the first charging gun as a first selectable charging module when the second number of charging guns work according to the equipartition matrix;
if the first selectable charging module comprises bus charging modules of other charging guns, removing the bus charging modules of the other charging guns from the first selectable charging module, and marking the current first selectable charging module as a second selectable charging module, wherein the other charging guns are working charging guns except the first charging gun;
acquiring the number of the remaining selectable modules corresponding to the first charging gun when the second number of charging guns work, and recording the number of the remaining selectable modules as the target number of the remaining selectable modules;
selecting a charging module distributed to the first charging gun from the second selectable charging modules according to the number of the target remaining selectable modules, and distributing the selected charging module distributed to the first charging gun;
if there are still unassigned charging modules in the first selectable charging modules, then the unassigned charging modules are assigned to the first charging gun.
Optionally, in the preset averaging rule, selecting a charging module allocated to the first charging gun from the second selectable charging modules according to the number of the target remaining selectable modules may include:
selecting a first charging module from second selectable charging modules as a charging module distributed to a first charging gun, wherein the first charging module is the second selectable charging module which has the smallest difference between the number of the included charging modules and the number of the target remaining selectable modules in all the second selectable charging modules with the number of the included charging modules smaller than or equal to the number of the target remaining selectable modules;
subtracting the number of the charging modules included in the first charging module from the number of the target remaining selectable modules to obtain a difference value, taking the difference value as the new number of the target remaining selectable modules, and removing the first charging module from the second selectable charging module to obtain a new second selectable charging module;
if the first charging module still exists in the second selectable charging modules, the step of selecting the first charging module from the second selectable charging modules as the charging module distributed to the first charging gun is continuously executed until the first charging module does not exist in the second selectable charging modules.
Optionally, in the average module number calculating unit, a calculation formula for calculating the average module number when the first number of charging guns operate according to the number of charging modules included in each charging module and the first number is as follows:
Figure BDA0002149647670000141
wherein p is a first number,
Figure BDA0002149647670000142
for a first number p of charge guns operating on the average number of modules, miThe number of charging modules included for the charging module i, and N is the charging moduleThe number of the cells.
It will be apparent to those skilled in the art that, for convenience and simplicity of description, the foregoing functional units and modules are merely illustrated in terms of division, and in practical applications, the foregoing functional allocation may be performed by different functional units and modules as needed, that is, the internal structure of the power allocation system is divided into different functional units or modules to perform all or part of the above described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the above-mentioned apparatus may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Fig. 7 is a schematic block diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 7, the terminal device 70 of this embodiment includes: one or more processors 701, a memory 702, and a computer program 703 stored in the memory 702 and executable on the processors 701. The processor 701 implements the steps in the above-described embodiments of the power allocation method, such as the steps S201 to S203 shown in fig. 2, when executing the computer program 703. Alternatively, the processor 701, when executing the computer program 703, implements the functions of each module/unit in the above-described power distribution system embodiment, for example, the functions of the modules 601 to 603 shown in fig. 6.
Illustratively, the computer program 703 may be partitioned into one or more modules/units that are stored in the memory 702 and executed by the processor 701 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program 703 in the terminal device 70. For example, the computer program 703 may be divided into an obtaining module, an averaging matrix generating module, and an allocating module, where the specific functions of the modules are as follows:
the acquisition module is used for acquiring the total number of the charging guns and the number of the charging modules included in each charging module, wherein each charging gun corresponds to one charging module, and the output power of each charging module is the same;
the charge module generating module is used for generating a charge module according to the total number of the charge guns and the number of the charge modules included in each charge module, wherein the charge modules which are selectable and correspond to each charge gun when the charge guns with different numbers work are stored in the charge module;
and the distribution module is used for distributing the charging module for the working charging guns when the working quantity of the charging guns is dynamically switched according to the equipartition matrix and the preset equipartition rule.
Other modules or units can refer to the description of the embodiment shown in fig. 6, and are not described again here.
The terminal device 70 may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The terminal device 70 includes, but is not limited to, a processor 701 and a memory 702. Those skilled in the art will appreciate that fig. 7 is only one example of a terminal device 70, and does not constitute a limitation of terminal device 70, and may include more or less components than those shown, or combine certain components, or different components, for example, terminal device 70 may also include an input device, an output device, a network access device, a bus, etc.
The Processor 701 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 702 may be an internal storage unit of the terminal device 70, such as a hard disk or a memory of the terminal device 70. The memory 702 may also be an external storage device of the terminal device 70, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 70. Further, the memory 702 may also include both an internal storage unit of the terminal device 70 and an external storage device. The memory 702 is used for storing the computer program 703 and other programs and data required by the terminal device 70. The memory 702 may also be used to temporarily store data that has been output or is to be output.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed power distribution system and method may be implemented in other ways. For example, the above-described power distribution system embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. A method of power allocation, comprising:
acquiring the total number of charging guns and the number of charging modules included in each charging module, wherein each charging gun corresponds to one charging module, and the output power of each charging module is the same;
generating an equipartition matrix according to the total number of the charging guns and the number of the charging modules included in each charging module, wherein the equipartition matrix stores selectable charging modules corresponding to each charging gun when the charging guns with different numbers work;
according to the averaging matrix and a preset averaging rule, when the working number of the charging guns is dynamically switched, a charging module is distributed for the working charging guns, so that the power of the working charging guns is evenly distributed or is basically evenly distributed;
according to the equipartition matrix and the preset equipartition rule, when the work quantity of the charging guns is dynamically switched, the charging modules are distributed to the working charging guns so as to enable the power average distribution or the power basic average distribution of the working charging guns, and the method comprises the following steps:
assigning a bus bar charging module of a first charging gun to the first charging gun; the first charging gun is any one of the working charging guns, and the bus charging module of the first charging gun is a charging module directly connected with the first charging gun;
acquiring the number of working charging guns, recording the number as a second number, and acquiring a selectable charging module corresponding to the first charging gun according to the uniform matrix when the second number of charging guns work, and recording the selectable charging module as a first selectable charging module;
if the first selectable charging module comprises bus charging modules of other charging guns, removing the bus charging modules of the other charging guns from the first selectable charging module, and marking the current first selectable charging module as a second selectable charging module, wherein the other charging guns are working charging guns except the first charging gun;
and distributing a charging module to the first charging gun according to the second selectable charging module.
2. The power distribution method according to claim 1, wherein the generating an averaging matrix according to the total number of the charging guns and the number of the charging modules included in each charging module comprises:
when the number of the charging guns in work is a first number, calculating the average number of the charging guns of the first number in work according to the number of the charging modules included in each charging module and the first number, wherein the first number is any positive integer which is greater than or equal to 1 and less than or equal to the total number of the charging guns;
calculating the number of the remaining optional modules corresponding to the first charging gun when the first number of charging guns work according to the average module number and the number of the charging modules included in the bus charging module of the first charging gun;
and selecting other charging modules with the number of the charging modules smaller than or equal to the number of the remaining optional modules as selectable charging modules corresponding to the first charging gun when the charging guns with the first number work, wherein the other charging modules are charging modules except the bus charging module of the first charging gun.
3. The method according to claim 1, wherein the allocating a charging module for the first charging gun according to the second selectable charging module comprises:
acquiring the number of the remaining selectable modules corresponding to the first charging gun when the second number of charging guns work, and recording the number of the remaining selectable modules as the target number of the remaining selectable modules;
according to the number of the target remaining selectable modules, selecting a charging module distributed to the first charging gun from the second selectable charging modules, and distributing the selected charging module distributed to the first charging gun;
and if the unallocated charging modules still exist in the first selectable charging modules, allocating the unallocated charging modules to the first charging gun.
4. The power distribution method according to claim 3, wherein the selecting the charging module distributed to the first charging gun from the second selectable charging modules according to the target remaining selectable number of modules comprises:
selecting a first charging module from the second selectable charging modules as a charging module distributed to the first charging gun, wherein the first charging module is the second selectable charging module which has the smallest difference between the number of the included charging modules and the number of the target remaining selectable modules in all the second selectable charging modules with the number of the included charging modules smaller than or equal to the number of the target remaining selectable modules;
subtracting the number of the charging modules included in the first charging module from the number of the target remaining selectable modules to obtain a difference value, wherein the difference value is used as the new number of the target remaining selectable modules, and the first charging module is removed from the second selectable charging module to obtain a new second selectable charging module;
if the first charging module still exists in the second selectable charging modules, the step of selecting the first charging module from the second selectable charging modules as the charging module distributed to the first charging gun is continuously executed until the first charging module does not exist in the second selectable charging modules.
5. The power distribution method according to claim 2, wherein the calculation formula for calculating the average number of the charging modules when the first number of the charging guns operates according to the number of the charging modules included in each charging module and the first number is as follows:
Figure FDA0003400837310000031
wherein p is a first number,
Figure FDA0003400837310000032
for a first number p of charge guns operating on the average number of modules, miThe number of charging modules included in the charging module i, and the number of charging modules N.
6. A power distribution system, comprising:
the acquisition module is used for acquiring the total number of the charging guns and the number of the charging modules included in each charging module, wherein each charging gun corresponds to one charging module, and the output power of each charging module is the same;
the charge module generating module is used for generating a charge module according to the total number of the charge guns and the number of the charge modules included in each charge module, wherein the charge modules which can be selected and correspond to each charge gun when the charge guns with different numbers work are stored in the charge module;
the distribution module is used for distributing a charging module to the working charging guns when the working number of the charging guns is dynamically switched according to the averaging matrix and a preset averaging rule so as to enable the power of the working charging guns to be evenly distributed or basically evenly distributed;
the allocation module is specifically configured to:
assigning a bus bar charging module of a first charging gun to the first charging gun; the first charging gun is any one of the working charging guns, and the bus charging module of the first charging gun is a charging module directly connected with the first charging gun;
acquiring the number of working charging guns, recording the number as a second number, and acquiring a selectable charging module corresponding to the first charging gun according to the uniform matrix when the second number of charging guns work, and recording the selectable charging module as a first selectable charging module;
if the first selectable charging module comprises bus charging modules of other charging guns, removing the bus charging modules of the other charging guns from the first selectable charging module, and marking the current first selectable charging module as a second selectable charging module, wherein the other charging guns are working charging guns except the first charging gun;
and distributing a charging module to the first charging gun according to the second selectable charging module.
7. The power distribution system of claim 6 wherein the equipartition matrix generation module comprises:
the average module number calculating unit is used for calculating the average module number of the working charging guns of the first number according to the number of the charging modules included in each charging module and the first number when the number of the working charging guns is the first number, wherein the first number is any positive integer which is greater than or equal to 1 and is less than or equal to the total number of the charging guns;
the residual selectable module quantity calculating unit is used for calculating the residual selectable module quantity corresponding to the first charging gun when the first charging gun works according to the average module quantity and the quantity of the charging modules included in the bus charging module of the first charging gun;
the charging module selecting unit is used for selecting other charging modules with the number of the charging modules smaller than or equal to the number of the remaining selectable modules as selectable charging modules corresponding to the first charging gun when the charging guns with the first number work, wherein the other charging modules are charging modules except the bus charging module of the first charging gun.
8. The power distribution system of claim 6, wherein the distribution module is further configured to:
acquiring the number of the remaining selectable modules corresponding to the first charging gun when the second number of charging guns work, and recording the number of the remaining selectable modules as the target number of the remaining selectable modules;
according to the number of the target remaining selectable modules, selecting a charging module distributed to the first charging gun from the second selectable charging modules, and distributing the selected charging module distributed to the first charging gun;
and if the unallocated charging modules still exist in the first selectable charging modules, allocating the unallocated charging modules to the first charging gun.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the power distribution method according to any of claims 1 to 5 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by one or more processors, implements the steps of the power distribution method according to any one of claims 1 to 5.
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