CN112467856B - Wireless charging system and method with priority - Google Patents
Wireless charging system and method with priority Download PDFInfo
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- CN112467856B CN112467856B CN202011277256.9A CN202011277256A CN112467856B CN 112467856 B CN112467856 B CN 112467856B CN 202011277256 A CN202011277256 A CN 202011277256A CN 112467856 B CN112467856 B CN 112467856B
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- 238000010248 power generation Methods 0.000 claims abstract description 68
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- 238000007781 pre-processing Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 77
- 238000004891 communication Methods 0.000 claims description 19
- 230000010365 information processing Effects 0.000 claims description 11
- 230000007613 environmental effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—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
- B60L53/12—Inductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/51—Photovoltaic means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The application relates to a system and a method for wireless charging with priority, wherein the method comprises the following steps: acquiring real-time total power data, charging state data and charging priority level data; the real-time total power data, the charging state data and the charging priority level data are summarized and preprocessed; executing a wireless charging sequencing algorithm according to the result of the total preprocessing, and determining wireless charging priority orders and system power supply and demand information of a plurality of charging automobiles; according to the wireless charging priority sequence and the system power supply and demand information, the wireless charging power distribution of the charging ground device to a plurality of charging automobiles is controlled, and meanwhile, the opening and closing of the photovoltaic power generation module are controlled. The application collects various data, feeds back the emergency degree of the vehicle demands of the vehicle owners, the sensitivity degree of the cost and the difference of the loss acceptance degree of the vehicle-mounted power battery pack, divides the electric vehicles in the system into different charging priority levels, can intelligently allocate the required charging power and meets the demands of the vehicle owners.
Description
Technical Field
The application relates to the technical field of electric automobile charging, in particular to a wireless charging system and method with priority.
Background
In the background of increasingly serious global environmental pollution and increasingly tense fossil energy, environmental awareness and consumption capability of new things are continuously improved. The development of new energy industry is promoted to the level of national energy strategy by the global governments of various countries, and the development and application of new energy, such as the development and utilization of new energy of solar energy, geothermal energy, wind energy and the like, and the research, development and popularization of electric automobiles are related.
Solar photovoltaic is a clean and pollution-free new energy source, and has been rapidly developed in China in recent years, and the capacity of the new photovoltaic grid-connected installation in China is continuously increased for many years, so that the first world is kept. With the price reduction of the solar photovoltaic module and the strong support of various government policies, the solar photovoltaic power generation has wide market prospect. The electric automobile can effectively reduce air pollution and relieve energy shortage, but due to the technical limit of the current electric automobile, the endurance capacity of the electric automobile is limited, and the development and popularization of the electric automobile are restricted. In order to ensure enough travel distance, the automobiles must be charged at regular time or at fixed distance, the traditional wired charging is time-consuming and labor-consuming, a wired cable is required to be connected, and meanwhile, the problem of high-voltage discharge is easily caused by wired contact, so that danger is caused. The wireless power supply technology can directly and quickly charge the equipment without connecting the equipment with a power supply system by using a cable. In addition, the non-contact quick charging can be arranged in various places, and can provide charging service for various types of equipment.
On one hand, the grid-connected use of the photovoltaic power station can generate load fluctuation influence on the stable operation of a power grid, and the unbalance between the electric energy output by the photovoltaic and the required power of a charging automobile can influence the operation efficiency of the whole wireless charging system; on the other hand, the power demands of different charging automobiles on charging electric energy are not the same, and under the condition that a plurality of charging automobiles are charged simultaneously, the power demands of the charging automobiles with high demands often cannot be met in time, so that the charging automobiles cannot be subjected to efficient electric energy supplement. Therefore, how to effectively distribute the power output for the charged automobile is a problem to be solved.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a system and a method for wireless charging with priority, which are used for solving the problem that the existing highway wireless charging facilities cannot effectively distribute electric energy output for charging automobiles.
The application provides a wireless charging system with priority, which comprises a photovoltaic power generation module, a photovoltaic control device, a charging vehicle-mounted device, a charging ground device and a central processing unit, wherein:
the photovoltaic power generation module is used for converting collected light energy into charging electric energy and transmitting the charging electric energy to the photovoltaic data collection and control device;
the photovoltaic control device is used for collecting real-time total power data of photovoltaic power generation, transmitting the data to the central processing unit and controlling the opening and closing of the photovoltaic power generation module according to a downlink instruction of the central processing unit;
the charging vehicle-mounted device is used for acquiring charging state data of the charging automobile, transmitting the charging state data to the central processing unit through the charging ground device and receiving output electric energy of the charging ground device;
the charging ground device comprises a bar code information receiving unit and a central processing unit, wherein the bar code information receiving unit is used for transmitting charging priority data received by the bar code information receiving unit to the central processing unit; the charging system is also used for outputting electric energy according to the issuing instruction of the central processing unit, wherein the owner of the charging automobile selects by scanning a two-dimensional code so as to transmit the charging priority level data to the bar code information receiving unit;
and the central processing unit is used for controlling the charging priority sequence of the charging automobile according to the real-time total power data, the charging state data and the charging priority grade data.
Further, the photovoltaic power generation module comprises a plurality of photovoltaic power generation panels, and the layout of the photovoltaic power generation panels is set according to the environmental factors of the installation site, wherein the environmental factors comprise geographic positions and sunlight intensity.
Further, the photovoltaic control device comprises a data acquisition unit and an input power control unit, wherein:
the data acquisition unit is used for acquiring the real-time total power data of the photovoltaic power generation and transmitting the data to the central processing unit through a bus;
the input power control unit is used for controlling the power input of the charging electric energy of the photovoltaic power generation panel to be cut off according to the photovoltaic power generation input power control instruction from the central processing unit.
Further, the charging vehicle-mounted device comprises a charging data acquisition unit, a wireless communication transmitting unit and a wireless charging receiving unit, wherein:
the charging data acquisition unit is used for acquiring the charging state data of the charging automobile, wherein the charging state data comprises power battery charging state data and real-time charging demand power data;
the wireless communication transmitting unit is used for transmitting the charging state data to the charging ground device;
the wireless charging receiving unit is used for receiving the output electric energy of the charging ground device and charging the power battery pack of the charging automobile.
Further, the charging ground device further comprises a wireless communication receiving unit and a wireless charging transmitting unit, wherein:
the wireless communication receiving unit is used for transmitting the charging state data transmitted by the wireless communication transmitting unit to the central processing unit and transmitting the charging priority level data transmitted by the bar code information receiving unit to the central processing unit;
the wireless charging transmitting unit is used for outputting electric energy according to the issuing instruction of the central processing unit.
Further, the central processing unit comprises an information processing unit, an algorithm processing unit and a power distribution unit, wherein:
the information processing unit is used for carrying out total preprocessing on the real-time total power data, the charging state data and the charging priority level data;
the algorithm processing unit is used for executing a wireless charging sequencing algorithm according to the result of the information processing unit for summarizing and preprocessing and determining the wireless charging priority orders and the system power supply and demand information of a plurality of charging automobiles;
the power distribution unit is used for controlling the charging ground device to distribute the wireless charging power of the plurality of charging automobiles according to the wireless charging priority sequence and the system power supply and demand information, and simultaneously controlling the opening and closing of the photovoltaic power generation module.
The application also provides a method for wireless charging with priority, which is based on the system for wireless charging with priority, and comprises the following steps:
acquiring real-time total power data, charging state data and charging priority level data;
the real-time total power data, the charging state data and the charging priority level data are summed up and preprocessed;
executing a wireless charging sequencing algorithm according to the result of the total preprocessing, and determining wireless charging priority orders and system power supply and demand information of a plurality of charging automobiles;
according to the wireless charging priority sequence and the system power supply and demand information, controlling the wireless charging power distribution of the charging ground device to a plurality of charging automobiles, and simultaneously controlling the opening and closing of the photovoltaic power generation module;
the photovoltaic control device collects the real-time total power data of photovoltaic power generation and transmits the data to the central processing unit; the charging vehicle-mounted device acquires the charging state data of the charging automobile and transmits the charging state data to the central processing unit through a charging ground device; the charging ground device comprises a bar code information receiving unit, and is used for transmitting the charging priority level data received by the bar code information receiving unit to the central processing unit, and a vehicle owner of the charging vehicle selects by scanning a two-dimensional code so as to transmit the charging priority level data to the bar code information receiving unit.
Further, the acquiring the charging real-time total power data, the charging state data and the charging priority level data includes:
the charging car is parked above the wireless charging parking space, and a charging request is initiated;
judging whether the interval time between the charging request initiated at the current moment and the charging request initiated at the previous moment reaches a preset interval time, and if so, emptying the charging state data and the real-time total power data corresponding to the charging request initiated at the previous moment;
the charging automobile sends the charging state data to the charging ground device through the charging vehicle-mounted device arranged on the charging automobile and transmits the charging state data to the central processing unit through the charging ground device, wherein the charging state data comprises power battery charging state data and real-time charging demand power data;
and the photovoltaic control device collects the real-time total power data of photovoltaic power generation and transmits the data to the central processing unit.
Further, the determining the wireless charging priority order and the system power supply and demand information according to the comparison result of the multiple parameters includes:
if the total required power data is larger than the real-time total power data and the charging priority level data are mutually unequal, the wireless charging priority order corresponding to the charging automobile with higher charging priority level data is more forward;
if the total required power data is larger than the real-time total power data and the charging priority level data are equal, the wireless charging priority order corresponding to the charging automobile with the lower power battery charge state data is more forward;
if the total required power data is larger than the real-time total power data, the charging priority level data are equal and the power battery charge state data are equal, the wireless charging priority order corresponding to the charging automobile with longer charging time is more advanced;
if the total required power data is equal to the real-time total power data, the wireless charging priority sequence corresponding to the charging automobile with higher charging priority level data is higher;
if the total required power data is smaller than the real-time total power data, on the basis that the wireless charging priority sequence corresponding to the charging automobile with higher charging priority level data is more advanced, the wireless charging priority sequence corresponding to the charging automobile with lower power battery charge state data is more advanced.
Compared with the prior art, the application has the beneficial effects that: the photovoltaic power generation module is arranged to convert the light energy into charging electric energy; the photovoltaic control device is arranged to control the opening and closing of the photovoltaic power generation module, so that overload of the system is prevented; the vehicle-mounted device is provided with the power charging device, so that the converted charging electric energy is effectively received, the battery of the charging vehicle is effectively charged, and meanwhile, the charging state data is transmitted; the charging ground device is arranged so as to receive and transmit charging priority level data and output electric energy according to a issuing instruction of the central processing unit; the central processing unit is arranged so as to process data, control the charging priority sequence of the charging automobile, ensure the optimal power distribution in the charging process and maximize the charging efficiency of the system. In summary, the application collects various data, feeds back the emergency degree of the vehicle demands of the vehicle owners, the sensitivity degree of the cost and the difference of the loss acceptance degree of the vehicle-mounted power battery pack, divides the electric vehicles in the system into different charging priority levels, can intelligently allocate the required charging power, and meets the demands of the vehicle owners.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging system with priority according to the present application;
fig. 2 is a schematic diagram of data transmission of a wireless charging system with priority according to the present application;
fig. 3 is a flow chart of a method for wireless charging with priority according to the present application;
FIG. 4 is a schematic diagram of a flow of acquiring data according to the present application;
fig. 5 is a schematic flow chart of a charge sequencing provided by the present application;
FIG. 6 is a flow chart of the present application for parameter comparison;
fig. 7 is a second flow chart of the parameter comparison of the present application.
Reference numerals:
the system comprises a 1-photovoltaic power generation module, a 2-photovoltaic control device, a 3-charging vehicle-mounted device, a 4-charging ground device and a 5-central processing unit.
Detailed Description
The following detailed description of preferred embodiments of the application is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the application, are used to explain the principles of the application and are not intended to limit the scope of the application.
Example 1
The embodiment of the application provides a wireless charging system with priority, and as shown in fig. 1, fig. 1 is a schematic structural diagram of the wireless charging system with priority, which is provided by the application, and includes a photovoltaic power generation module 1, a photovoltaic control device 2, a charging vehicle-mounted device 3, a charging ground device 4 and a central processing unit 5, wherein:
the photovoltaic power generation module 1 is used for converting collected light energy into charging electric energy and transmitting the charging electric energy to the photovoltaic data collection and control device;
the photovoltaic control device 2 is used for collecting real-time total power data of photovoltaic power generation, transmitting the data to the central processing unit 5 and controlling the opening and closing of the photovoltaic power generation module 1 according to a downlink instruction of the central processing unit 5;
the charging vehicle-mounted device 3 is used for acquiring charging state data of the charging vehicle, transmitting the charging state data to the central processing unit 5 through the charging ground device 4 and receiving output electric energy of the charging ground device 4;
the charging ground device 4 comprises a bar code information receiving unit and is used for transmitting the charging priority data received by the bar code information receiving unit to the central processing unit 5; the system is also used for outputting electric energy according to the issuing instruction of the central processing unit 5, wherein the owner of the charging automobile selects by scanning the two-dimensional code so as to transmit charging priority level data to the bar code information receiving unit;
the central processing unit 5 is used for controlling the charging priority sequence of the charging automobile according to the real-time total power data, the charging state data and the charging priority grade data.
According to the wireless charging system with the priority level, provided by the embodiment of the application, the photovoltaic power generation module is arranged to convert the light energy into the charging electric energy; the photovoltaic control device 2 is arranged to control the opening and closing of the photovoltaic power generation module 1, so that overload of the system is prevented; by arranging the power charging vehicle-mounted device 3, the converted charging electric energy is effectively received, the battery of the charging automobile is effectively charged, and meanwhile, the charging state data is transmitted; the charging ground device 4 is arranged so as to receive and transmit charging priority data and output electric energy according to a issuing instruction of the central processing unit 5; the central processing unit 5 is arranged so as to process data, control the charging priority sequence of the charging automobile, ensure the optimal power distribution in the charging process and maximize the charging efficiency of the system.
Specifically, as shown in fig. 2, fig. 2 is a schematic data transmission diagram of the wireless charging system with priority, where it is known that a plurality of electric vehicles (i.e. charging vehicles) transmit charging status data, such as real-time total power data P, to a charging ground device 4 by wireless communication through a charging vehicle-mounted device 3 installed on the charging vehicle d1 And P d2 And/or state of charge data (not shown) of the power battery, and at the same time, the photovoltaic power generation module 1 performs photoelectric conversion, so that real-time total power data in the photoelectric conversion process is transmitted to the central processing unit 5 through the bus, and the central processing unit 5 is ensured to receive data in various charging processes, so as to perform effective power distribution.
Preferably, the photovoltaic power generation module 1 comprises a plurality of photovoltaic power generation panels, the layout of which is set according to the environmental factors of the installation site, wherein the environmental factors include geographical location, solar light intensity. By this, by providing the photovoltaic power generation panel in the photovoltaic power generation module 1, solar energy is effectively collected.
It should be noted that, according to the geographical location of the installation site and environmental factors such as the intensity of sunlight, select suitable photovoltaic power generation board installation overall arrangement, can install the photovoltaic board that suits with the area at highway bank protection, hillside both sides or in highway side direction power emission layer outer end, utilize solar energy resource as far as possible, improve the generated energy.
Preferably, the photovoltaic control device 2 comprises a data acquisition unit and an input power control unit, wherein:
the data acquisition unit is used for acquiring real-time total power data of photovoltaic power generation and transmitting the data to the central processing unit 5 through a bus;
and an input power control unit for controlling the power input for cutting off the charging power of the photovoltaic power generation panel according to the photovoltaic power generation input power control instruction from the central processor 5.
Therefore, real-time total power data are effectively collected through the data collection unit, and the load condition of photovoltaic power generation is fed back; by setting the input power control unit, the photovoltaic power generation module 1 is controlled to be opened and closed under the control of the central processing unit 5, so that the system load is effectively prevented from being overlarge.
Under the condition of overload of the system, the input power control unit receives a photovoltaic power generation input power control instruction from the power distribution unit in the central processing unit 5, cuts off the power input of part of photovoltaic power generation panels, prevents the overload of the system, and ensures the accuracy and the high efficiency of charging.
Preferably, the charging in-vehicle device 3 includes a charging data acquisition unit, a wireless communication transmission unit, a wireless charging reception unit, wherein:
the charging data acquisition unit is used for acquiring charging state data of the charging automobile, wherein the charging state data comprises charging state data of a power battery and real-time charging demand power data;
a wireless communication transmitting unit for transmitting the charging state data to the charging ground device 4;
and the wireless charging receiving unit is used for receiving the output electric energy of the charging ground device 4 and charging the power battery pack of the charging automobile.
Therefore, the charging state data of the charging automobile is effectively collected by arranging the charging data collecting unit; setting a wireless communication transmitting unit to effectively transmit the charging state data; by arranging the wireless charging receiving unit, effective electric energy output is realized.
Preferably, the charging ground device 4 further comprises a wireless communication receiving unit and a wireless charging transmitting unit, wherein:
the wireless communication receiving unit is used for transmitting the charging state data transmitted by the wireless communication transmitting unit to the central processing unit 5 and transmitting the charging priority level data transmitted by the bar code information receiving unit to the central processing unit 5;
and the wireless charging transmitting unit is used for outputting electric energy according to the issuing instruction of the central processing unit 5.
Therefore, the wireless communication receiving unit is arranged to be matched with the wireless communication transmitting unit for use so as to receive the transmitted charging state data and further transmit the charging state data; through setting up wireless transmitting unit that charges, use with wireless receiving unit cooperation that charges to carry out the effective output of charging electric energy.
Preferably, the central processor 5 comprises an information processing unit, an algorithm processing unit, a power distribution unit, wherein:
the information processing unit is used for carrying out total preprocessing on the real-time total power data, the charging state data and the charging priority level data;
the algorithm processing unit is used for executing a wireless charging sequencing algorithm according to the result of the information processing unit for summarizing and preprocessing and determining the wireless charging priority orders and the system power supply and demand information of a plurality of charging automobiles;
the power distribution unit is used for controlling the charging ground device 4 to distribute wireless charging power of a plurality of charging automobiles according to the wireless charging priority sequence and the system power supply and demand information, and controlling the photovoltaic power generation module 1 to be opened and closed.
Therefore, by arranging an information processing unit, the collected various data are effectively preprocessed; executing a wireless charging sequencing algorithm by setting an algorithm processing unit to determine wireless charging priority sequence and system power supply and demand information and reflect wireless charging sequences of a plurality of charging automobiles; by arranging the power distribution unit, the power distribution is controlled according to the wireless charging priority sequence and the system power supply and demand information, the electric vehicles in the system are guaranteed to be divided into different charging priority levels, the required charging power can be intelligently distributed, and the requirements of vehicle owners are met.
Example 2
The embodiment of the application provides a method for wireless charging with priority, based on the system for wireless charging with priority as described above, and referring to fig. 3, fig. 3 is a schematic flow chart of the method for wireless charging with priority provided by the application, which includes steps S1 to S4, wherein:
in step S1, when a charging car sends a charging request, acquiring real-time total power data, charging state data and charging priority level data;
in step S2, the real-time total power data, the charging state data and the charging priority level data are summed up and preprocessed;
in step S3, a wireless charging sequencing algorithm is executed according to the result of the summary preprocessing, and wireless charging priority orders and system power supply and demand information of a plurality of charging automobiles are determined;
in step S4, according to the wireless charging priority sequence and the system power supply and demand information, controlling the wireless charging power distribution of the charging ground device 4 to the plurality of charging vehicles, and simultaneously controlling the opening and closing of the photovoltaic power generation module 1;
the photovoltaic control device 2 collects real-time total power data of photovoltaic power generation and transmits the data to the central processing unit 5; the charging vehicle-mounted device 3 acquires charging state data of the charging vehicle and transmits the charging state data to the central processing unit 5 through the charging ground device 4; the charging ground device 4 comprises a bar code information receiving unit, and is used for transmitting the charging priority level data received by the bar code information receiving unit to the central processing unit 5, and the owner of the charging automobile selects by scanning the two-dimensional code so as to transmit the charging priority level data to the bar code information receiving unit.
The wireless charging method with the priority level provided by the embodiment of the application comprises the steps of firstly, acquiring various data of the charging automobiles to feed back the load condition of the whole system and the actual charging demands of the plurality of charging automobiles; then, the data are subjected to total preprocessing to ensure the accuracy and the comprehensiveness of the data; and then, a wireless charging sequencing algorithm is executed according to the result of the total preprocessing so as to efficiently determine the charging priority sequence and the system power supply and demand information of a plurality of charging automobiles, thereby ensuring reasonable and efficient power distribution and improving the charging efficiency of the whole system.
Preferably, as seen in fig. 4, fig. 4 is a schematic flow chart of acquiring data provided by the present application, and step S1 includes steps S11 to S14, wherein:
in step S11, the charging car is parked above the wireless charging parking space, and a charging request is initiated;
in step S12, it is determined whether the interval time between the initiation of the charging request at the current time and the initiation of the charging request at the previous time reaches a preset interval time, and if so, the charging state data and the real-time total power data corresponding to the initiation of the charging request at the previous time are emptied;
in step S13, the charging vehicle sends charging state data to the charging ground device 4 through the charging vehicle-mounted device 3 installed on the charging vehicle, and transmits the charging state data to the central processing unit 5 through the charging ground device 4, wherein the charging state data includes charging state data of the power battery and real-time charging demand power data;
in step S14, the photovoltaic control apparatus 2 collects real-time total power data of photovoltaic power generation and transmits the data to the central processing unit 5.
Therefore, when data acquisition is carried out, the data transmission content of the charging automobile at the previous moment is ensured to be emptied, so that effective data transmission and data processing are carried out at the current moment.
Preferably, as seen in conjunction with fig. 5, fig. 5 is a schematic flow chart of the charge sequencing provided in the present application, and step S3 includes steps S31 to S33, wherein:
in step S31, according to the real-time charging demand power data corresponding to the plurality of charging cars at the current moment, determining total demand power data;
in step S32, performing parameter comparison on the total required power data and the real-time total power data of the photovoltaic power generation, performing parameter comparison on charging priority level data corresponding to a plurality of charging automobiles, and performing parameter comparison on power battery state of charge data corresponding to a plurality of charging automobiles;
in step S33, the wireless charging priority and the system power supply and demand information are determined according to the result of the comparison of the plurality of parameters.
Therefore, parameter comparison is carried out according to collected data of a plurality of charging automobiles, so that the emergency degree of the charging requirements of the charging automobiles, the sensitivity degree of the charge and the loss acceptance degree of the vehicle-mounted power battery pack are effectively determined, and according to the result of the parameter comparison, the wireless charging priority sequence and the system power supply and demand information are determined, so that effective power distribution is carried out, and charging automobiles with different requirements are guaranteed to finish charging according to priority.
Preferably, if the total required power data is greater than the real-time total power data and the plurality of charging priority data are mutually unequal, the wireless charging priority sequence corresponding to the charging automobile with higher charging priority data is more advanced;
if the total required power data is larger than the real-time total power data and the charging priority level data are equal, the wireless charging priority order corresponding to the charging automobile with the lower power battery charge state data is more forward;
if the total required power data is larger than the real-time total power data, the charging priority data are equal, and the charging state data of the power batteries are equal, the wireless charging priority sequence corresponding to the charging automobile with longer charging time is more advanced;
if the total required power data is equal to the real-time total power data, the wireless charging priority sequence corresponding to the charging automobile with higher charging priority level data is higher;
if the total required power data is smaller than the real-time total power data, on the basis that the wireless charging priority sequence corresponding to the charging automobile with higher charging priority data is higher, the wireless charging priority sequence corresponding to the charging automobile with lower power battery charge state data is higher.
Therefore, parameter comparison is carried out according to various data, various conditions are divided according to the parameter comparison conditions, electric energy distribution is carried out according to the continuous charging priority according to different conditions, and the high efficiency of system operation is ensured.
In a specific embodiment of the present application, as shown in fig. 6, fig. 6 is a schematic flow diagram of parameter comparison in the present application, in which n (n > 3) electric vehicles in a preset system are being wirelessly charged, and a specific implementation of a wireless charging sequencing algorithm includes steps S601 to S604, where:
in step S601, comparing the total required power data with the real-time total power data;
in step S602, when the total required power data is greater than the real-time total power data, the charging priority data is reordered;
in step S603, when the total required power data is equal to the real-time total power data, performing a first sorting process;
in step S604, when the total required power data is smaller than the real-time total power data, a second sorting process is performed.
Specifically, the algorithm processing unit receives the data information transmitted by the information processing unit of the central processing unit 5 and performs parameter comparison; the compared parameters include power battery charge state data, namely electric vehicle SOC values (SOC-1, SOC-2, …, SOC-n), electric vehicle real-time charging demand power (Pd 1, pd2, …, pdn), electric charging vehicle priority (Vi 1, vi2, …, vin) and photovoltaic power generation real-time total power (Pg).
Wherein, the real-time total power demand Pds that charges of electric automobile is:
the first sorting process is performed in the case where the total required power for wireless charging of the electric vehicle is equal to the total power of photovoltaic power generation, that is, when pds=pg. The first sorting process comprises the steps of respectively distributing standard wireless charging power according to different vehicle priority levels; because pds=pg, the supply and demand power of the photovoltaic power generation is equal at the moment, if no new vehicle access system requests charging, only the system data is refreshed, and the allocation of the original wireless charging power is maintained unchanged; if a new vehicle access system requests charging, on the basis of the allocation of the original wireless charging power, allocating high-power quick charging (priority sequence D1) when the priority level of the new vehicle is A, and slowly charging (priority sequence E1) when the priority level of the new vehicle is B;
the second sorting process is performed in case the total required power of the electric vehicle for wireless charging is less than the total power of the photovoltaic power generation, i.e. when Pds < Pg. The second sorting process comprises the steps of carrying out wireless charging priority order sorting according to the vehicle priority level and the SOC value of the electric vehicle, and feeding back the power supply of the system to be more than needed.
Preferably, as shown in fig. 7, fig. 7 is a second flow chart of parameter comparison according to the present application, when the total required power data is greater than the real-time total power data, step S602 includes steps S6021 to S6023, wherein:
in step S6021, when the total required power data is greater than the real-time total power data, determining whether the charging priority level data are equal;
in step S6022, if the charging priority level data are not equal, performing a third sorting process;
in step S6023, if the charging priority level data are equal, determining whether the power battery state of charge data are equal;
in step S6024, if the state of charge data of the power batteries are equal, performing a fourth sorting process;
in step S6025, if the power battery state of charge data is not equal, a fifth sorting process is performed.
Specifically, in step S6022, in the case where the total required power of the wireless charging of the electric vehicle is greater than the total power of the photovoltaic power generation and the vehicle priority levels are not equal, that is, when Pds > Pg and the vehicle priority levels (V1, V2, …, vn) are not the same parameter, the third sorting process is performed; the third sorting process is that the vehicle wireless charging priority sequence with higher priority is more advanced, the vehicle with higher priority waits for the high-power quick charging power distribution (primary distribution) to be completed, and then the other vehicles are distributed with rated power for slow charging (secondary distribution), wherein the first and second distribution are that the vehicle wireless charging priority sequence with lower real-time SOC value is more advanced;
further, if only the vehicle V1 has a priority level of a, and the real-time SOC value (SOC- (n-1)) of the vehicle Vn-1 is lowest among the remaining B-level vehicles, the wireless charging priority order of the vehicle V1 is D1, and then the wireless charging priority order of the vehicle Vn-1 is E2 and the wireless charging priority order of the vehicle with the second lowest real-time SOC value is E3 according to the principle that the lower the real-time SOC value of the vehicle is, the more forward the wireless charging priority order of the vehicle is, until the sorting is completed.
Specifically, in step S6025, when the total required power of the wireless charging of the electric vehicle is greater than the total power of the photovoltaic power generation, the priority levels of the vehicles are equal, and the real-time SOC values of the vehicles (i.e., the state of charge data of the power battery) are not equal, that is, when Pds > Pg and the priority levels of the vehicles (V1, V2, …, vn) are all the same parameter, and the real-time SOC values of the vehicles are not equal, the fifth sorting process is executed; wherein the fifth sorting process includes the vehicle wireless charging priority order being the earlier the lower the vehicle real-time SOC value is.
Further, if all vehicles in the system are of level A and the real-time SOC value (SOC- (n-1)) of the vehicle Vn-1 is the lowest, the wireless charging priority of the vehicle Vn-1 is D1, and the wireless charging priority of the vehicle with the second lowest real-time SOC value is D2 until the sequencing is completed; if all vehicles in the system are of the B level and the real-time SOC value (SOC- (n-1)) of the vehicle Vn-1 is the lowest, the wireless charging priority of the vehicle Vn-1 is E1, and the wireless charging priority of the vehicle with the second lowest real-time SOC value is E2 until the sequencing is completed.
Specifically, in step S6024, when the total required power of the wireless charging of the electric automobile is greater than the total power of the photovoltaic power generation, the priority level of the vehicle and the real-time SOC value of the vehicle are all equal, that is, when Pds > Pg and the priority levels (V1, V2, …, vn) of the vehicle are all the same parameter and the real-time SOC values of the vehicle are equal, the fourth ranking process is performed, where the fourth ranking process includes that the wireless charging priority order of the vehicle with longer charging time is earlier according to the priority order principle;
further, if all vehicles in the system are of level a and the charged time period of the vehicle Vn-1 in the system is longest, the wireless charging priority of the vehicle is D1, and the wireless charging priority of the vehicle with the second longest charged time period is D2, until the sorting is completed; if all vehicles in the system are of the B level and the charged time period of the vehicle Vn-1 in the system is longest, the wireless charging priority order of the vehicles is E1, and the wireless charging priority order of the vehicles with the second longest charged time period is E2 until the sequencing is completed.
It should be noted that, the obtained wireless charging priority and system power supply and demand information (i.e. the results of the first sorting process, the second sorting process, the third sorting process, the fourth sorting process and the fifth sorting process) are transmitted to the power distribution unit of the central processing unit 5, and the power distribution unit in the central processing unit 5 completes wireless charging power distribution and controls the total power of photovoltaic power generation according to the received wireless charging priority and system power supply and demand information of the electric automobile in each parking space, so as to prevent overload of the system.
Example 3
An embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of wireless charging with priority as provided in embodiment 2 above.
The application discloses a wireless charging system and a wireless charging method with priority, wherein a photovoltaic power generation module is arranged to convert light energy into charging electric energy; the photovoltaic control device 2 is arranged to control the opening and closing of the photovoltaic power generation module 1, so that overload of the system is prevented; by arranging the power charging vehicle-mounted device 3, the converted charging electric energy is effectively received, the battery of the charging automobile is effectively charged, and meanwhile, the charging state data is transmitted; the charging ground device 4 is arranged so as to receive and transmit charging priority data and output electric energy according to a issuing instruction of the central processing unit 5; the central processing unit 5 is arranged so as to process data, control the charging priority sequence of the charging automobile, ensure the optimal power distribution in the charging process and maximize the charging efficiency of the system.
According to the technical scheme, various data are collected, the emergency degree of the vehicle demands of the vehicle owners, the sensitivity degree of the cost and the difference of the loss acceptance degree of the vehicle-mounted power battery pack are fed back, the electric vehicles in the system are divided into different charging priority levels, the required charging power can be intelligently distributed, and the vehicle owner demands are met. Meanwhile, the photovoltaic power generation and separation network is utilized to operate, so that the influence of the traditional grid connection photovoltaic power generation facilities on the stable operation of the power grid is eliminated, the use of solar photovoltaic is promoted on the basis of reducing the power grid load conflict, and the new energy industry is developed; and the photovoltaic power generation and the wireless charging of the electric automobile are organically combined, and on the basis of perfecting electric energy supplementing supporting facilities of the electric automobile, the renewable energy utilization rate is improved, and further the emission of greenhouse gases is reduced.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application.
Claims (7)
1. The utility model provides a system that contains wireless charging of priority, its characterized in that includes photovoltaic power generation module, photovoltaic controlling means, charges on-vehicle device, charges ground device, central processing unit, wherein:
the photovoltaic power generation module is used for converting collected light energy into charging electric energy and transmitting the charging electric energy to the photovoltaic control device;
the photovoltaic control device is used for collecting real-time total power data of photovoltaic power generation, transmitting the data to the central processing unit and controlling the opening and closing of the photovoltaic power generation module according to a downlink instruction of the central processing unit;
the charging vehicle-mounted device is used for acquiring charging state data of a charging automobile, transmitting the charging state data to the central processing unit through the charging ground device and receiving output electric energy of the charging ground device, wherein the charging state data comprises power battery charging state data and real-time charging demand power data;
the charging ground device comprises a bar code information receiving unit and a central processing unit, wherein the bar code information receiving unit is used for transmitting charging priority data received by the bar code information receiving unit to the central processing unit; the charging system is also used for outputting electric energy according to the issuing instruction of the central processing unit, wherein the owner of the charging automobile selects by scanning a two-dimensional code so as to transmit the charging priority level data to the bar code information receiving unit;
the central processing unit is used for controlling the charging priority sequence of the charging automobile according to the real-time total power data, the charging state data and the charging priority grade data, wherein the charging priority grade data is grade data for ensuring that the electric automobile can intelligently allocate required charging power;
the central processing unit comprises an information processing unit, an algorithm processing unit and a power distribution unit, wherein:
the information processing unit is used for carrying out total preprocessing on the real-time total power data, the charging state data and the charging priority level data;
the algorithm processing unit is used for executing a wireless charging sequencing algorithm according to the result of the information processing unit for summarizing and preprocessing and determining the wireless charging priority orders and the system power supply and demand information of a plurality of charging automobiles;
the power distribution unit is used for controlling the charging ground device to distribute wireless charging power of a plurality of charging automobiles according to the wireless charging priority sequence and the system power supply and demand information, and simultaneously controlling the photovoltaic power generation module to be opened and closed;
the step of executing a wireless charging sequencing algorithm according to the result of the summation preprocessing, and the step of determining the wireless charging priority order and the system power supply and demand information of the plurality of charging automobiles comprises the following steps:
determining total required power data according to the real-time charging required power data corresponding to the plurality of charging automobiles at the current moment;
performing parameter comparison on the total required power data and the real-time total power data of photovoltaic power generation, performing parameter comparison on the charging priority level data corresponding to a plurality of charging automobiles, and performing parameter comparison on the state of charge data of the power battery corresponding to a plurality of charging automobiles;
determining the wireless charging priority sequence and the system power supply and demand information according to the comparison result of various parameters;
the determining the wireless charging priority sequence and the system power supply and demand information according to the comparison result of the multiple parameters comprises:
if the total required power data is larger than the real-time total power data and the charging priority level data are mutually unequal, the wireless charging priority order corresponding to the charging automobile with higher charging priority level data is more forward;
if the total required power data is larger than the real-time total power data and the charging priority level data are equal, the wireless charging priority order corresponding to the charging automobile with the lower power battery charge state data is more forward;
if the total required power data is larger than the real-time total power data, the charging priority level data are equal and the power battery charge state data are equal, the wireless charging priority order corresponding to the charging automobile with longer charging time is more advanced;
if the total required power data is equal to the real-time total power data, the wireless charging priority sequence corresponding to the charging automobile with higher charging priority level data is higher;
if the total required power data is smaller than the real-time total power data, on the basis that the wireless charging priority sequence corresponding to the charging automobile with higher charging priority level data is more advanced, the wireless charging priority sequence corresponding to the charging automobile with lower power battery charge state data is more advanced.
2. The priority level-containing wireless charging system of claim 1 wherein the photovoltaic power module comprises a plurality of photovoltaic power panels, the layout of the photovoltaic power panels being set in accordance with environmental factors of the installation site, wherein the environmental factors include geographic location, solar light intensity.
3. The priority level-containing wireless charging system of claim 2, wherein the photovoltaic control device comprises a data acquisition unit and an input power control unit, wherein:
the data acquisition unit is used for acquiring the real-time total power data of the photovoltaic power generation and transmitting the data to the central processing unit through a bus;
the input power control unit is used for controlling the power input of the charging electric energy of the photovoltaic power generation panel to be cut off according to the photovoltaic power generation input power control instruction from the central processing unit.
4. The priority level-containing wireless charging system of claim 3, wherein the charging vehicle-mounted device comprises a charging data acquisition unit, a wireless communication transmission unit, a wireless charging reception unit, wherein:
the charging data acquisition unit is used for acquiring the charging state data of the charging automobile;
the wireless communication transmitting unit is used for transmitting the charging state data to the charging ground device;
the wireless charging receiving unit is used for receiving the output electric energy of the charging ground device and charging the power battery pack of the charging automobile.
5. The priority level-containing wireless charging system of claim 4 wherein the charging surface device further comprises a wireless communication receiving unit and a wireless charging transmitting unit, wherein:
the wireless communication receiving unit is used for transmitting the charging state data transmitted by the wireless communication transmitting unit to the central processing unit and transmitting the charging priority level data transmitted by the bar code information receiving unit to the central processing unit;
the wireless charging transmitting unit is used for outputting electric energy according to the issuing instruction of the central processing unit.
6. A method of prioritized wireless charging, based on the prioritized wireless charging system of any of claims 1-5, comprising:
when a charging automobile sends a charging request, acquiring real-time total power data, charging state data and charging priority level data;
the real-time total power data, the charging state data and the charging priority level data are summed up and preprocessed;
executing a wireless charging sequencing algorithm according to the result of the total preprocessing, and determining the wireless charging priority orders and the system power supply and demand information of a plurality of charging automobiles;
according to the wireless charging priority sequence and the system power supply and demand information, controlling the wireless charging power distribution of the charging ground device to a plurality of charging automobiles, and simultaneously controlling the opening and closing of the photovoltaic power generation module;
the photovoltaic control device collects the real-time total power data of photovoltaic power generation and transmits the data to the central processing unit; the charging vehicle-mounted device acquires the charging state data of the charging automobile and transmits the charging state data to the central processing unit through a charging ground device; the charging ground device comprises a bar code information receiving unit, and is used for transmitting the charging priority level data received by the bar code information receiving unit to the central processing unit, and a vehicle owner of the charging vehicle selects by scanning a two-dimensional code so as to transmit the charging priority level data to the bar code information receiving unit.
7. The method of prioritized wireless charging of claim 6, wherein the obtaining charging real-time total power data, charging status data, and charging priority data comprises:
the charging car is parked above the wireless charging parking space, and a charging request is initiated;
judging whether the interval time between the charging request initiated at the current moment and the charging request initiated at the previous moment reaches a preset interval time, and if so, emptying the charging state data and the real-time total power data corresponding to the charging request initiated at the previous moment;
the charging automobile sends the charging state data to the charging ground device through the charging vehicle-mounted device arranged on the charging automobile and transmits the charging state data to the central processing unit through the charging ground device, wherein the charging state data comprises power battery charging state data and real-time charging demand power data;
and the photovoltaic control device collects the real-time total power data of photovoltaic power generation and transmits the data to the central processing unit.
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