CN112562165B - Charging queue and module allocation algorithm - Google Patents
Charging queue and module allocation algorithm Download PDFInfo
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- CN112562165B CN112562165B CN202011443458.6A CN202011443458A CN112562165B CN 112562165 B CN112562165 B CN 112562165B CN 202011443458 A CN202011443458 A CN 202011443458A CN 112562165 B CN112562165 B CN 112562165B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C11/00—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C11/00—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere
- G07C2011/04—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere related to queuing systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
Abstract
A charge queue and module allocation algorithm, comprising: setting up a charging queue according to the gun number of the charging gun, polling the starting state of each gun in the sequence of the charging queue, and if the starting state of a certain charging gun is polled to be 1, allocating a module for the certain charging gun according to the charging requirement; if the polling indicates that the starting state of a certain charging gun is 0, the module to which the certain charging gun is allocated is shut down, in the process, when a command of starting the charging of the certain charging gun is received, the starting state of the charging gun is set to be 1, and the gun number corresponding to the gun is adjusted to the tail of the queue; when a command of finishing charging of a certain charging gun is received, the charging queue is not changed, and the starting state of the charging queue is cleared to be 0. The method can lead the idle modules to be distributed according to the charging queue, and simplify the queue operation. And when no idle module exists, the charging gun started later can be used for carrying out the operation of 'module borrowing' so as to realize the charging process. And the module with smaller number is prevented from being frequently used by the operation of 'module staggered starting'.
Description
Technical Field
The invention relates to the field of control algorithms of electric vehicle charging equipment, in particular to a charging queue and module allocation algorithm.
Background
In order to improve the utilization rate of the power module, most of the electrical topologies adopted by the power distribution schemes of the existing charging devices are in a contactor matrix manner, and as shown in fig. 1, the electrical topologies adopted by the power distribution schemes are electrical topologies of the contactor matrix manner. At present, in the design of the device adopting such a distribution mode, the charging sequence of the charging gun is not considered, that is, when the existing device detects that the charging gun is started for charging, the system of the charging device distributes the required modules to the charging device in the idle modules, and when the charging gun exits from charging, the system usually shuts down the modules used by the charging gun.
However, it is found by analysis that the charging management mode brings the following disadvantages:
1. firstly, because the charging sequence of the charging guns is not considered, when a charging gun exits charging, the used module may be randomly distributed to other charging guns in charging, and sometimes, a vehicle which is charged first may be distributed with less power;
2. again, if the device is in a state where there are no remaining modules, the charging gun used by the vehicle will be used later, and the charging process of the vehicle will be unsuccessful because the device has no module available for allocation. This makes the multi-gun charging system in practical use, and thus unnecessary disputes are caused by such operations.
3. Finally, modules of the device are generally started in sequence from small to large according to the module numbers during distribution, so that the modules with small numbers are frequently and excessively used. Thus, a module with a small number has a greater risk of failure than a module with a larger number.
In view of the above, it is necessary to provide a solution for enabling modules to distribute power according to the charging sequence of the charging gun. Through research and development, the inventor provides a convenient charging queue scheme, can realize the purpose of distributing idle modules according to the charging queue, and can directly solve the problems.
Disclosure of Invention
In order to solve the above problems, the present invention provides a charging queue and a module allocation algorithm, so that the following objectives can be achieved by the convenient charging queue scheme provided by the present invention:
1. and the operation of starting gun number entering the tail of the queue is used, so that the idle modules can be distributed according to the charging queue, and the queue operation is simplified.
2. When no idle module exists, the charging gun started later can be used for 'module borrowing' operation, so that the charging process is realized.
3. The number of the module which is started preferentially can be recorded when the charging is started, and the operation of 'module staggered starting' is carried out when the charging is started next time, so that the modules with smaller numbers are prevented from being frequently used.
To achieve the above object, the present invention provides a charging queue and module allocation algorithm, which comprises: setting up a charging queue according to the gun number of the charging gun, then polling the starting state of each gun in the sequence of the charging queue, and if the starting state of a certain charging gun is 1, allocating a module for the certain charging gun according to the charging requirement; and if the starting state of a certain charging gun is 0 after polling, the module to which the charging gun is allocated is shut down. In the process, when a command of starting charging of a certain charging gun is received, the starting state of the charging gun is set to be 1, and the gun number corresponding to the gun is adjusted to the tail of the queue; when a command that a certain charging gun finishes charging is received, the charging queue is not changed, and the starting state of the charging queue is cleared to be 0.
Preferably, the step of setting up a charging queue may be:
establishing a queue array ChargeList [ M ], wherein the data is the gun number of each charging gun (the gun number of the 1 st charging gun is set as 1, and the like), and the value of M is the number of the maximum charging guns;
establishing a State structure body State [ M ] for each charging gun, wherein data comprises starting State of each gun (data 0 represents that the charging gun is not started, and data 1 represents that the charging gun is started), required voltage, required current and other data;
and establishing a mark array MKFlag [ N ] for each charging module, wherein data represents a group number distributed by each module (the group number is 1 when the charging module is distributed to the 1 st charging gun, and so on, wherein data 0 represents that the charging module is not distributed with the group number in standby, data-1 represents that the charging module needs shutdown processing), and the value N is the maximum number of the charging modules.
Preferably, the charging system includes the following steps when being started:
1) Firstly, initializing data;
2) Polling the firing status of each gun in the order of the charging queue;
3) When a certain charging gun starts charging, the starting state of the charging gun is set to be 1, and the charging queue is subjected to the operation of 'starting gun number into tail of the queue', so that a module is distributed for the charging gun;
4) When charging of a certain charging gun 2 is finished, the charging queue is not changed, the starting state of the charging queue is cleared to 0, and the used module is shut down;
5) Circularly performing the steps 2) to 4).
As a preferable scheme, the algorithm may further include a module borrowing process, when there is no spare module, if a certain charging gun starts the charging process, the program of the algorithm calculates the number of modules allocated to the charging gun in operation, selects the charging gun with the most allocated modules, makes it quit at least one module in use, and allocates the quit module to the gun which is just started.
Preferably, the algorithm may further include a module staggered starting policy, where the policy is to record a module number that is preferentially started when the charging system using the algorithm starts charging, and perform a "module staggered starting" operation when charging is started next time, so as to avoid frequent use of modules with smaller numbers.
The invention has the beneficial effects that by means of the technical scheme, the following effects are realized:
1. and the operation of starting gun numbers to enter the tail of the queue is used, so that the idle modules can be distributed according to the charging queue, and the queue operation is simplified.
2. When no idle module exists, the charging gun started later can be used for 'module borrowing' operation, so that the charging process is realized.
3. The number of the module which is started preferentially can be recorded when the charging is started, and the operation of 'module staggered starting' is carried out when the charging is started next time, so that the modules with smaller numbers are prevented from being frequently used.
Drawings
Fig. 1 is a contactor matrix electrical topology for use with a power distribution scheme for a charging device.
Fig. 2 is a schematic diagram of a charge queue and a charge queue implementation in a module allocation algorithm according to the present invention.
Fig. 3 is a block borrowing flow diagram of a charge queue and block allocation algorithm according to the present invention.
Fig. 4 is a block diagram illustrating a module staggered start-up flow chart of a charge queue and a block allocation algorithm according to the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The main idea of the invention is to establish a charging queue, sequentially inquire the starting state of each gun in the sequence of the charging queue, if the state is inquired to be starting, distribute a module for the charging gun according to the requirement in an idle module of the equipment, if the state is not starting, shut down the used module as the idle module for processing.
As shown in fig. 2, a schematic diagram of a charging queue and a charging queue in a module allocation algorithm according to the present invention is illustrated, and an implementation manner of the charging queue is as follows:
1. charging queue
(1) To summarize:
the charging queue and module allocation algorithm polls the starting state of each gun in the sequence of the charging queue, if a certain charging gun is found to be ready for starting charging, the gun number corresponding to the gun is adjusted to the tail of the queue, and when a program polls the gun again, the module is allocated to the gun according to the charging requirement; if the charging gun stops charging after polling, the gun number position of the gun number does not need to be adjusted, and when the program polls the gun, the program distributes the gun to a module for shutdown processing.
(2) The detailed procedure is exemplified as follows:
A. first the program checks the firing status of each gun in a polling fashion, in the order of the charging queue. (see FIG. 2(1)
B. When receiving a command to start charging for gun 2, it will first place its job status as "job" and move it out of the original queue position and into the tail of the queue (see FIG. 2(2)) and when polling gun number 2, assign it a module according to its power requirements (see FIG. 2(3)).
C. When a command to start charging of the gun 4 is received, the above steps are repeated (see 2(4)).
D. When receiving the command to stop charging the gun 2, the operating state is set to "standby" and the module used by it is turned off without changing the position of the gun number in the queue.
2. Module borrowing flow
In order to solve the charging problem of newly-added vehicles when all the charging modules are occupied,
this flow is added to charge management.
(1) To summarize: the method is that when no idle module exists, if a certain charging gun starts a charging process, a program calculates the number of modules distributed to the charging gun in work, selects the charging gun with the most distributed modules, enables the charging gun to quit one module in use, and distributes the quitted module to the gun which is just started.
(2) The detailed flow chart is shown in fig. 3, which includes the steps of:
step one, a charging gun N requests to start charging;
step two, no idle module exists after program query;
step three, calculating and finding out the charging gun M with the most distributed modules by a program;
step four, closing a module used by the charging gun M;
step five, distributing the closed modules to a charging gun N;
and step six, enabling the charging gun N to be charged normally.
3. Module mis-start
In order to increase the reliability of the system and improve the charging efficiency, the invention also adds a module dislocation starting strategy.
(1) To summarize: when the charging system starts charging, the serial number of the module which is started preferentially can be recorded, and the operation of 'module staggered starting' is carried out when the charging system starts charging next time, so that the modules with smaller serial numbers are prevented from being frequently used.
(2) The detailed operation is shown in fig. 4.
Which comprises the following steps:
1) Starting charging for the first time;
2) Starting the module from N from small to large;
3) Recording the number of the module which is started preferentially;
4) Starting for the second time;
5) Starting the module from the number N +1 from small to large, and starting from the number 1 if the number N +1 is more than the number of the modules;
6) The number of the module that is preferentially started is recorded.
The steps are circularly performed, so that the modules with smaller numbers can be prevented from being used excessively frequently.
The following examples are only for illustrating the technical solutions of the present invention, but are not intended to limit the scope of the present invention.
Establishing a queue array ChargeList [ M ], wherein the data is the gun number of each charging gun (the value of M is the number of the maximum charging guns); establishing a State array State [ M ] for each charging gun, wherein the data is the starting State of each gun (data 0 represents that the charging gun is not started, and data 1 represents that the charging gun is started); and establishing a flag array MKFlag [ N ] for each charging module, wherein data represents the gun number allocated to each module (the value of N is the number of the maximum charging module, wherein data 0 represents that the charging module is in standby, and data-1 represents that the charging module needs to be shut down).
1) First, data is initialized (M value is 4,N value is 8), as shown in the following table;
2) When a certain charging gun (here, for example, charging gun 2, which requires 5 modules) starts charging, its starting state is set to 1, and the charging queue is subjected to a "starting gun number entering tail" operation, and at this time, 5 modules can be allocated to the charging gun, as shown in the following table:
3) Then the charging gun 3 starts charging, the number of modules is 6, the same operation as 2) is carried out, but the number of modules is not enough, and only 3 modules are distributed, as shown in the following table:
4) Then the charging gun 1 starts charging, with 6 modules, and executes the same operation as 2), but without idle modules, and only waits, as shown in the following table:
5) After the charging gun 2 is charged, the charging queue is not changed, the starting state is cleared to 0, and the used module needs to be shut down, as shown in the following table:
6) After the module is closed, the mark is cleared to 0, and module distribution is carried out on the rest charging guns according to the sequence of the queue, because the charging gun 3 carries out charging operation relatively firstly, the requirement of the charging gun 3 is preferentially met, 6 modules are distributed for the charging gun 3, and the rest modules are distributed to the charging gun 1 in waiting, as shown in the following table:
although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.
Claims (4)
1. A charge queue and module allocation algorithm, the algorithm comprising: setting up a charging queue according to the gun number of the charging gun, then polling the starting state of each gun in the sequence of the charging queue, and if the starting state of a certain charging gun is 1, allocating a module for the certain charging gun according to the charging requirement; if the start state of a certain charging gun is polled to be 0, the module to which the certain charging gun is assigned is shut down, in the process, when a command of starting charging of the certain charging gun is received, the start state of the charging gun is set to be 1, and the gun number corresponding to the gun is adjusted to the tail of the queue; when a command of finishing charging of a certain charging gun is received, the charging queue is not changed, and the starting state of the charging queue is cleared to be 0;
wherein, the step of setting up a charging queue is:
establishing a queue array ChargeList [ M ], wherein the data is the gun number of each charging gun, the gun number of the 1 st charging gun is set to be 1, and the like, and the value of M is the number of the maximum charging guns;
establishing a State structure body State [ M ] for each charging gun, wherein data comprises the starting State of each gun, data 0 represents that the charging gun is not started, and data 1 represents that the charging gun is started, and the required voltage and the required current data;
establishing a mark array MKFlag [ N ] for each charging module, wherein data represents a group number distributed by each module, the group number is 1 when the data is distributed to the 1 st charging gun, and so on, wherein data 0 represents that the group number is not distributed in standby of the charging module, data-1 represents that the charging module is required to be shut down, and the value N is the maximum number of the charging modules;
when the charging system is started, the method comprises the following steps:
1) Firstly, initializing data;
2) Polling the starting state of each gun in the sequence of a charging queue, if the starting state of the gun is 1, distributing a charging module for the gun according to the required data, selecting the charging module with the group number of 0 for distribution, after the charging module is distributed to the gun, setting the group number of the charging module as the gun number, if the starting state of the gun is 0, performing shutdown processing on the charging module distributed to the gun, when the charging module is shutdown, setting the group number of the charging module as-1, and after the shutdown is finished, setting the group number of the charging module as 0; this operation is a continuous cyclic operation;
3) When a command of starting charging of a certain charging gun is received, the gun requirement data is received, the starting state of the charging gun is set to be 1, and the charging queue is subjected to the operation of 'starting gun number and entering tail of queue'; this operation is a trigger operation;
4) When a command of finishing charging of a certain charging gun is received, the charging queue is not changed, and the starting state of the charging queue is cleared to 0; this operation is a trigger operation;
5) Steps 2) to 4) are carried out simultaneously.
2. The charge queue and module allocation algorithm of claim 1, further comprising a module borrowing process, wherein if a charging gun initiates a charging process and no spare modules are available for allocation, the algorithm program initiates the module borrowing process, calculates the number of modules allocated to the charging gun in operation, and selects the charging gun with the most allocated modules to exit at least one of the modules in use, and allocates the exiting module to the gun that has just been activated.
3. The charge queue and module allocation algorithm according to claim 1, wherein the algorithm further comprises a module mis-start policy, which is to record the module number that is started preferentially when the charging system using the algorithm starts charging, and perform the module mis-start operation when the charging system starts charging next time, so as to avoid frequent use of the module with a smaller number.
4. The charge queue and module allocation algorithm of claim 2, wherein: the algorithm also comprises a module staggered starting strategy, wherein the strategy is that when the charging system adopting the algorithm starts charging, the module number which is started preferentially can be recorded, and the module staggered starting operation is carried out when the charging system starts charging next time, so that the modules with smaller numbers are prevented from being frequently used.
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