CN116512967A - Charging system - Google Patents

Charging system Download PDF

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Publication number
CN116512967A
CN116512967A CN202310694752.1A CN202310694752A CN116512967A CN 116512967 A CN116512967 A CN 116512967A CN 202310694752 A CN202310694752 A CN 202310694752A CN 116512967 A CN116512967 A CN 116512967A
Authority
CN
China
Prior art keywords
charging
energy storage
component
control
parameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310694752.1A
Other languages
Chinese (zh)
Inventor
尹礼鹏
赵振东
李志鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Topology Electric Power Technology Co ltd
Original Assignee
Xi'an Topology Electric Power Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Topology Electric Power Technology Co ltd filed Critical Xi'an Topology Electric Power Technology Co ltd
Priority to CN202310694752.1A priority Critical patent/CN116512967A/en
Publication of CN116512967A publication Critical patent/CN116512967A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application relates to a charging system, which comprises energy storage equipment, a charging pile and a charging gun; the energy storage device is electrically connected with the direct current bus through the first switch assembly, the charging pile is electrically connected with the direct current bus through the second switch assembly, the direct current bus is further electrically connected with the charging gun, the charging gun is electrically connected with the electric vehicle, the energy storage device, the charging pile and the charging gun are in communication connection with each other, the energy storage device comprises a control assembly and an energy storage assembly, and the control assembly is connected with the first switch assembly, the second switch assembly and the energy storage assembly; the control component is used for receiving the charging demand parameters of the electric vehicle connected with the charging gun and the capacity parameters of the charging pile, acquiring electricity consumption peak-valley data at the current moment, and controlling the working state of the first switch component and/or the second switch component and the working state of the energy storage component according to the charging demand parameters, the capacity parameters and the electricity consumption peak-valley data. By adopting the charging system provided by the application, the working efficiency of a charging task can be improved.

Description

Charging system
Technical Field
The application relates to the technical field of electric automobile charging, in particular to a charging system.
Background
Along with the shortage of energy sources and the requirement of environmental protection, new energy automobiles represented by electric automobiles are widely popularized and applied by virtue of the advantages of zero pollution, zero noise, simplicity in driving and the like.
In the prior art, electric vehicles are usually charged to supplement electric energy by means of a charging pile, which is a device that functions like an oiling machine in a gas station, and which can be fixed on the ground or on a wall, installed in public buildings (public buildings, malls, public parking lots, etc.) and in residential parking lots or charging stations.
However, with the perfection of the charging technology, the charging power supported by the electric automobile is increased, and the mode of charging the electric automobile through the charging pile is poor in flexibility, so that the working efficiency of the charging task is low.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a charging system that has high flexibility and can improve the work efficiency of a charging task.
In a first aspect, the present application provides a charging system comprising an energy storage device, a charging stake, and a charging gun; the charging pile is electrically connected with the direct current bus through a second switch assembly, the direct current bus is also electrically connected with the charging gun, the charging gun is used for being electrically connected with the electric vehicle, the energy storage device, the charging pile and the charging gun are mutually in communication connection, the energy storage device comprises a control assembly and an energy storage assembly, and the control assembly is connected with the first switch assembly, the second switch assembly and the energy storage assembly; the control component is used for receiving the charging demand parameter of the electric vehicle connected with the charging gun and the capacity parameter of the charging pile, acquiring electricity consumption peak-valley data at the current moment, and controlling the working state of the first switch component and/or the second switch component and the working state of the energy storage component according to the charging demand parameter, the capacity parameter and the electricity consumption peak-valley data.
In one embodiment, the control component is specifically configured to determine, when the electricity consumption peak-valley data indicates that the current moment is in the electricity consumption valley period, whether the charging pile can meet the charging requirement of the electric vehicle according to the charging requirement parameter and the capacity parameter, and control the working state of the first switch component and/or the second switch component and the working state of the energy storage component according to the determination result.
In one embodiment, the control component is specifically configured to send a first charging instruction to the charging pile when the charging pile can meet a charging requirement of the electric vehicle, where the first charging instruction is used to instruct the charging pile to output electric energy at the charging requirement parameter, control the second switch component to be closed, control the first switch component to be opened, and control the energy storage component to be in a non-working state.
In an embodiment, the control component is specifically configured to send a first charging instruction to the charging pile when the charging pile cannot meet a charging requirement of the electric vehicle, where the first charging instruction is used to instruct the charging pile to output electric energy according to the charging requirement parameter and an electric energy parameter of the electric energy output by the charging pile, send a second charging instruction to the energy storage component, where the second charging instruction is used to instruct the energy storage component to output electric energy according to a first electric energy output parameter carried in the second charging instruction, control the first switch component to be closed, control the second switch component to be closed, and control the energy storage component to be in a discharging state, where the first electric energy output parameter is obtained according to the charging requirement parameter and the electric energy parameter of the electric energy output by the charging pile.
In one embodiment, the control component is further configured to obtain, in real time, a charging requirement parameter of the electric vehicle in a charging process of the electric vehicle, and control the working state of the energy storage component to be changed from a discharging state to a charging state and control the first switch component to be closed and the second switch component to be kept closed when the charging pile can meet the charging requirement of the charging vehicle and the output electric energy remains.
In one embodiment, the control component is specifically configured to determine, when the electricity consumption peak-to-valley data indicates that the current time is in the electricity consumption peak period, whether the energy storage component can meet the charging requirement of the electric vehicle according to the charging requirement parameter and the capacity parameter, and control the working state of the first switch component and/or the second switch component and control the working state of the energy storage component according to the determination result.
In one embodiment, the control component is specifically configured to send a third charging instruction to the energy storage component when the energy storage component can meet a charging requirement of the electric vehicle, where the third charging instruction is used to instruct the energy storage component to output electric energy based on the charging requirement parameter, control the first switch component to be closed, control the second switch component to be opened, and control the energy storage component to be in a discharging state.
In an embodiment, the control component is specifically configured to send a third charging instruction to the energy storage component when the energy storage component cannot meet the charging requirement of the electric vehicle, where the third charging instruction is configured to instruct the energy storage component to output electric energy based on the charging requirement parameter, and send a fourth charging instruction to the charging pile according to the charging requirement parameter and the electric energy parameter of the electric energy output by the energy storage component, where the fourth charging instruction is configured to instruct the charging pile to output electric energy according to a second electric energy output parameter carried in the fourth charging instruction, and control the first switch component to be closed, control the second switch component to be closed, and control the energy storage component to be in a discharging state, where the second electric energy output parameter is obtained according to the charging requirement parameter and the electric energy parameter of the electric energy output by the energy storage component.
In one embodiment, the control component is further configured to obtain electricity consumption peak-valley data at the current moment when the charging gun and the charging pile are in a non-working state, and control the first switch component to be closed and control the second switch component to be closed and the energy storage component to be in a charging state when the electricity consumption peak-valley data indicates that the current moment is in an electricity consumption valley period, so that the charging pile charges the energy storage component.
In one embodiment, the control component is further configured to perform a three-way handshake with the charging pile and the electric vehicle connected with the charging gun before receiving the charging demand parameter and the capability parameter, so as to complete charging protocol authentication.
The charging system comprises energy storage equipment, a charging pile and a charging gun; the charging pile is electrically connected with the direct current bus through a second switch assembly, the direct current bus is also electrically connected with the charging gun, the charging gun is used for being electrically connected with the electric vehicle, the energy storage device, the charging pile and the charging gun are mutually in communication connection, the energy storage device comprises a control assembly and an energy storage assembly, and the control assembly is connected with the first switch assembly, the second switch assembly and the energy storage assembly; the control component is used for receiving the charging demand parameter of the electric vehicle connected with the charging gun and the capacity parameter of the charging pile, acquiring electricity consumption peak-valley data at the current moment, and controlling the working state of the first switch component and/or the second switch component and the working state of the energy storage component according to the charging demand parameter, the capacity parameter and the electricity consumption peak-valley data. The charging system provided by the application controls the working states of the first switch component and/or the second switch component and the energy storage component through the charging demand parameter, the capacity parameter and the electricity consumption peak-valley data, so that the charging system can flexibly select an object for charging the electric vehicle in actual conditions, the flexibility of a charging task is higher while the cost is saved, and the electric vehicle can be charged by the charging pile and the energy storage component under the condition that the required charging power of the electric vehicle is higher, thereby solving the problems of fixed power of the conventional charging pile and lower working efficiency of the charging task.
Drawings
FIG. 1 is a schematic diagram of a charging system according to an embodiment;
FIG. 2 is a schematic diagram of the charge system according to another embodiment;
FIG. 3 is a schematic diagram of the charge system according to another embodiment;
FIG. 4 is a schematic diagram of the charge system according to another embodiment;
FIG. 5 is a schematic diagram of the charge system according to another embodiment;
FIG. 6 is a schematic diagram of the charge system according to another embodiment;
fig. 7 is a schematic diagram of the charge system according to another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, for example, two, three, etc., unless explicitly defined otherwise.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Along with the shortage of energy sources and the requirement of environmental protection, new energy automobiles represented by electric automobiles are widely popularized and applied by virtue of the advantages of zero pollution, zero noise, simplicity in driving and the like.
In the prior art, electric vehicles are usually charged to supplement electric energy by means of a charging pile, which is a device that functions like an oiling machine in a gas station, and which can be fixed on the ground or on a wall, installed in public buildings (public buildings, malls, public parking lots, etc.) and in residential parking lots or charging stations.
However, the electric automobile is charged by the charging pile in a poor manner, so that the working efficiency of a charging task is low.
In view of this, the embodiment of the application provides a charging system with higher flexibility and capable of effectively improving the working efficiency of the charging task.
In one embodiment, as shown in fig. 1, a charging system 100 is provided, the charging system 100 comprising an energy storage device 101, a charging post 102, and a charging gun 103.
The energy storage device 101 is electrically connected with the dc bus 104 through the first switch assembly 105, the charging pile 102 is electrically connected with the dc bus 104 through the second switch assembly 106, the dc bus 104 is further electrically connected with the charging gun 103, the charging gun 103 is electrically connected with the electric vehicle, the energy storage device 101, the charging pile 102 and the charging gun 103 are in communication connection with each other, the energy storage device 101 comprises a control assembly 1011 and an energy storage assembly 1012, and the control assembly 1011 is connected with the first switch assembly 105, the second switch assembly 106 and the energy storage assembly 1012.
The control component 1011 is configured to receive a charging demand parameter of the electric vehicle connected to the charging gun 103 and a capacity parameter of the charging pile 102, obtain current peak-to-valley data, and control a working state of the first switch component 105 and/or the second switch component 106 and a working state of the energy storage component 1012 according to the charging demand parameter, the capacity parameter and the current peak-to-valley data.
Alternatively, the energy storage device 101 is a device comprising a control component 1011 and an energy storage component 1012, wherein the control component 1011 refers to a means that can receive electrical signals and make decisions based on these signals.
In one possible implementation, the control component 1011 may be a PID controller.
In another possible implementation, the control component 1011 may also be an MCU controller.
Alternatively, the energy storage component 1012 refers to a device capable of storing electric energy, the energy storage component 1012 may be a battery, and the energy storage component 1012 has two working states of charging and discharging.
The charging pile 102 refers to a charging device capable of providing energy for electric vehicles, and the charging device has a function similar to that of an oiling machine in a gas station, can be fixed on the ground or on a wall, is installed in public buildings (public buildings, markets, public parking lots and the like) and residential district parking lots or charging stations, and can charge electric vehicles of various types according to different voltage levels.
The charging gun 103 refers to a device capable of transmitting electric energy of the charging pile 102 to electric equipment, and is similar to a data line, one end of the charging gun is connected with the charging pile 102, and the other end of the charging gun is connected with charging equipment to play a role of an interface.
The dc bus 104 refers to a common path to which a plurality of devices are connected in parallel branches.
The first switching component 105 and the second switching component 106 refer to an electronic element that can open a circuit, interrupt a current, or cause a current to flow to other circuits.
In one possible implementation, when the switch assembly is in the closed state, the circuit in which the switch assembly is placed is in the on state.
In another possible implementation, when the switch assembly is in an open state, the circuit in which the switch assembly is placed is in a non-conductive state.
As described above, the energy storage device 101, the charging post 102 and the charging gun 103 are communicatively connected to each other.
In one possible implementation, the energy storage device 101, the charging post 102, and the charging gun 103 are communicatively coupled to each other by a wired communication connection, such as serial, ethernet.
In another possible implementation, the energy storage device 101, the charging post 102 and the charging gun 103 are communicatively connected to each other by a wireless communication connection, such as WIFI, bluetooth, LORA, NB-IOT, ZIGBEE, cellular signal.
As described above, the control component 1011 is connected to the first switch component 105, the second switch component 106 and the energy storage component 1012.
In one possible implementation, the control component 1011 is wired to the first switch component 105, the second switch component 106, and the energy storage component 1012.
In another possible implementation, the control component 1011 is wirelessly connected with the first switch component 105, the second switch component 106, and the energy storage component 1012.
Optionally, the charging requirement parameter refers to a charging requirement parameter of an electric device connected to the charging gun 103, that is, a charging requirement parameter of an electric vehicle, where the charging requirement parameter includes an electric quantity parameter required by the electric vehicle, and a power parameter required by the electric vehicle during charging.
In one possible implementation, the charge demand parameter may be sent by the electric vehicle to the control component 1011 via the charge gun 103.
Alternatively, the capacity parameter of the charging pile 102 may be a power parameter that the charging pile 102 can provide when charging the electric vehicle.
In one possible implementation, the capability parameter may be sent by the charging pile 102 to the control component 1011.
The electricity consumption peak-valley data at the current moment is used for indicating the electricity consumption condition at the current moment.
In one possible implementation, the current time of day peak to valley data may also be sent by the charging pile 102 to the control component 1011.
In one embodiment, the control component 1011 is specifically configured to determine whether the charging pile 102 can meet the charging requirement of the electric vehicle according to the charging requirement parameter and the capability parameter when the electricity consumption peak-valley data indicates that the current moment is in the electricity consumption valley period, and control the working state of the first switch component 105 and/or the second switch component 106 and the working state of the energy storage component 1012 according to the determination result.
Optionally, the electricity consumption low valley period can be used for indicating that the current moment is low in power grid load and low in electricity price.
In one possible implementation manner, after the electric vehicle is connected to the charging gun 103, the electric vehicle sends the charging requirement parameter to the control component 1011 through the charging gun 103, the charging pile 102 sends the current time peak-valley data and the capacity parameter to the control component 1011, if the previous time peak-valley data received by the control component 1011 indicates that the current time is in a low-power period, that is, the current time has a low grid load and a low electricity price, the control component 1011 determines whether the charging pile 102 can meet the charging requirement of the electric vehicle according to the charging requirement parameter and the capacity parameter, and controls the working states of the first switch component 105 and/or the second switch component 106 and the energy storage component 1012 according to the determination result.
In an alternative embodiment of the present application, as shown in fig. 2, the control component 1011 is specifically configured to send a first charging instruction to the charging pile 102 when the charging pile 102 can meet the charging requirement of the electric vehicle, where the first charging instruction is used to instruct the charging pile 102 to output electric energy based on the charging requirement parameter, and control the second switch component 106 to be closed, control the first switch component 105 to be opened, and control the energy storage component 1012 to be in a non-working state.
In one possible implementation, if the power parameter provided by the charging pile 102 when charging the electric vehicle is greater than the power parameter required by the electric vehicle when charging, the control component 1011 sends the first charging command to the charging pile 102 and controls the second switch component 106 to be closed, controls the first switch component 105 to be opened and controls the energy storage component 1012 to be in a non-working state, so that the charging pile 102 charges the electric vehicle through the dc bus 104.
In an alternative embodiment of the present application, as shown in fig. 3, the control component 1011 is specifically configured to send a first charging instruction to the charging pile 102 when the charging pile 102 cannot meet the charging requirement of the electric vehicle, where the first charging instruction is used to instruct the charging pile 102 to output electric energy based on the charging requirement parameter, and send a second charging instruction to the energy storage component 1012 according to the charging requirement parameter and the electric energy parameter of the charging pile 102 output electric energy, where the second charging instruction is used to instruct the energy storage component 1012 to output electric energy according to the first electric energy output parameter carried in the second charging instruction, and control the first switch component 105 to be closed, control the second switch component 106 to be closed, and control the energy storage component 1012 to be in a discharging state, where the first electric energy output parameter is obtained according to the charging requirement parameter and the electric energy parameter of the charging pile 102 output electric energy.
In one possible implementation, if the power parameter provided by the charging pile 102 when charging the electric vehicle is smaller than the power parameter required by the electric vehicle when charging, it is determined that the charging pile 102 cannot meet the charging requirement of the electric vehicle, the control component 1011 sends the first charging instruction to the charging pile 102, sends the second charging instruction to the energy storage component 1012 according to the charging requirement parameter and the electric energy parameter of the electric energy output by the charging pile 102, controls the first switch component 105 to be closed, controls the second switch component 106 to be closed and controls the energy storage component 1012 to be in a discharging state, so that the charging pile 102 and the energy storage component 1012 both charge the electric vehicle through the dc bus 104, for example, the power parameter provided by the charging pile 102 when charging the electric vehicle is 10, and the power parameter required by the electric vehicle when charging is 15, and sends the first electric energy output parameter in the second charging instruction to the energy storage component 1012 according to the charging requirement parameter and the electric energy parameter of the electric energy output by the charging pile 102 is 5.
In another possible implementation manner, the charging pile 102 may not meet the charging requirement of the electric vehicle, except that the charging pile 102 may provide a smaller power parameter than the power parameter required by the electric vehicle when charging the electric vehicle, where the current remaining electric quantity of the electric vehicle is too low, and the electric vehicle needs to be charged for a long time, where the electric vehicle needs to be quickly charged, where when the control component 1011 determines that the charging pile 102 cannot meet the charging requirement of the electric vehicle, the control component 1011 sends the first charging command to the charging pile 102, and sends the second charging command to the energy storage component 1012 according to the charging requirement parameter and the electric energy parameter of the electric energy output by the charging pile 102, and controls the first switch component 105 to be closed, controls the second switch component 106 to be closed, and controls the energy storage component 1012 to be in a discharging state, so that both the charging pile 102 and the energy storage component 1012 charge the electric vehicle through the dc bus 104.
In an alternative embodiment of the present application, as shown in fig. 4, the control component 1011 is further configured to obtain, in real time, a charging requirement parameter of the electric vehicle in a charging process of the electric vehicle, and control the working state of the energy storage component 1012 to be changed from a discharging state to a charging state and control the first switch component 105 to be closed and the second switch component 106 to be kept closed when the charging pile 102 can meet the charging requirement of the electric vehicle and the output electric energy remains.
In one possible implementation, when the electric vehicle has a high electric power, a current-limiting charging state or a floating charging state may be performed, at this time, the charging requirement parameter of the electric vehicle will be reduced, and assuming that the charging requirement parameter of the electric vehicle is 5, the output electric energy of the charging pile 102 is 10, and then the output electric energy of the charging pile 102 is remained, the energy storage component 1012 does not need to output electric energy to the electric vehicle any more, the control component 1011 will control the working state of the energy storage component 1012 to be changed from the discharging state to the charging state, and control the first switch component 105 to be closed and the second switch component 106 to be kept closed, so that the charging pile 102 charges the electric vehicle and the energy storage component 1012 through the dc bus 104.
In an alternative embodiment of the present application, the control unit 1011 is specifically configured to determine, when the electricity consumption peak-to-valley data indicates that the current time is in the electricity consumption peak period, whether the energy storage unit 1012 can meet the charging requirement of the electric vehicle according to the charging requirement parameter and the capacity parameter, and control the working state of the first switch unit 105 and/or the second switch unit 106 and the working state of the energy storage unit 1012 according to the determination result.
Optionally, the electricity consumption peak period can be used for indicating that the load of the power grid is higher at the current moment and the electricity price is higher.
In one possible implementation manner, after the electric vehicle is connected to the charging gun 103, the electric vehicle sends the charging requirement parameter to the control component 1011 through the charging gun 103, the charging pile 102 sends the current time peak-valley data and the capacity parameter to the control component 1011, if the previous time peak-valley data received by the control component 1011 indicates that the current time is in a peak period of electricity consumption, that is, the current time has higher grid load and higher electricity price, the control component 1011 determines whether the charging pile 102 can meet the charging requirement of the electric vehicle according to the charging requirement parameter and the capacity parameter, and controls the working state of the first switch component 105 and/or the second switch component 106 and the working state of the energy storage component 1012 according to the determination result.
In an alternative embodiment of the present application, as shown in fig. 5, the control unit 1011 is specifically configured to send a third charging instruction to the energy storage unit 1012 if the energy storage unit 1012 can meet the charging requirement of the electric vehicle, where the third charging instruction is used to instruct the energy storage unit 1012 to output electric energy based on the charging requirement parameter, and control the first switch unit 105 to be closed, control the second switch unit 106 to be opened, and control the energy storage unit 1012 to be in a discharging state.
In one possible implementation, if the power parameter provided by the energy storage module 1012 when charging the electric vehicle is greater than the power parameter required by the electric vehicle when charging, the control module 1011 sends the third charging command to the energy storage module 1012 and controls the first switch module 105 to be closed, controls the second switch module 106 to be opened and controls the energy storage module 1012 to be in a discharging state, so that the energy storage module 1012 charges the electric vehicle through the dc bus 104.
In an alternative embodiment of the present application, as shown in fig. 6, the control component 1011 is specifically configured to send a third charging instruction to the energy storage component 1012 when the energy storage component 1012 cannot meet the charging requirement of the electric vehicle, where the third charging instruction is used to instruct the energy storage component 1012 to output electric energy based on the charging requirement parameter, and send a fourth charging instruction to the charging pile 102 according to the charging requirement parameter and the electric energy parameter of the energy storage component 1012 output electric energy, where the fourth charging instruction is used to instruct the charging pile 102 to output electric energy according to a second electric energy output parameter carried in the fourth charging instruction, and control the first switch component 105 to be closed, control the second switch component 106 to be closed, and control the energy storage component 1012 to be in a discharging state, where the second electric energy output parameter is obtained according to the charging requirement parameter and the electric energy parameter of the energy storage component 1012 output electric energy.
In one possible implementation, if the power parameter provided by the energy storage component 1012 when charging the electric vehicle is smaller than the power parameter required by the electric vehicle when charging the electric vehicle, the control component 1011 sends the third charging command to the energy storage component 1012, and sends the fourth charging command to the energy storage component 1012 according to the charging demand parameter and the power parameter of the energy output by the energy storage component 1012, and controls the first switch component 105 to be closed, controls the second switch component 106 to be closed and controls the energy storage component 1012 to be in a discharging state, so that the charging pile 102 and the energy storage component 1012 both charge the electric vehicle through the dc bus 104, for example, the power parameter provided by the energy storage component 1012 when charging the electric vehicle is 10, the power parameter required by the electric vehicle when charging is 15, and the second power output parameter in the fourth charging command is sent to the charging pile 102 according to the charging demand parameter and the power parameter of the energy output by the energy storage component 1012 is 5.
In an alternative embodiment of the present application, as shown in fig. 7, the control component 1011 is further configured to obtain current peak-to-valley data when the charging gun 103 and the charging pile 102 are both in a non-working state, and control the first switch component 105 to be closed and the second switch component 106 to be closed and the energy storage component 1012 to be in a charging state when the current peak-to-valley data indicates that the current time is in a power-to-valley period, so that the charging pile 102 charges the energy storage component 1012.
In one possible implementation, when the control component 1011 determines that the charging gun 103 and the charging pile 102 are both in the non-working state, and determines that the current time is in the low electricity consumption period, that is, the grid load is low and the electricity price is low, the control component 1011 controls the first switch component 105 to be closed, controls the second switch component 106 to be closed and the energy storage component 1012 to be in the charging state, so that the charging pile 102 charges the energy storage component 1012.
In an alternative embodiment of the present application, the control component 1011 is further configured to perform a three-way handshake with the charging pile 102 and the electric vehicle connected with the charging gun 103 before receiving the charging demand parameter and the capability parameter, so as to complete charging protocol authentication.
The three-party holds the finger, the charging pile 102, the energy storage device 101 and the electric vehicle adopt a preset communication standard protocol to exchange data, and when the three-party holds the finger successfully, the charging protocol completes authentication.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (10)

1. A charging system, characterized in that the charging system comprises an energy storage device, a charging pile and a charging gun; the charging pile is electrically connected with the direct current bus through a second switch assembly, the direct current bus is also electrically connected with the charging gun, the charging gun is used for being electrically connected with the electric vehicle, the energy storage device, the charging pile and the charging gun are in communication connection with each other, the energy storage device comprises a control assembly and an energy storage assembly, and the control assembly is connected with the first switch assembly, the second switch assembly and the energy storage assembly;
the control assembly is used for receiving charging demand parameters of the electric vehicle connected with the charging gun and capacity parameters of the charging pile, obtaining electricity consumption peak-valley data at the current moment, and controlling the working states of the first switch assembly and/or the second switch assembly and the working states of the energy storage assembly according to the charging demand parameters, the capacity parameters and the electricity consumption peak-valley data.
2. The system according to claim 1, wherein the control component is specifically configured to determine, when the electricity consumption peak-valley data indicates that the current time is in an electricity consumption valley period, whether the charging pile can meet a charging requirement of the electric vehicle according to the charging requirement parameter and the capability parameter, and control an operating state of the first switch component and/or the second switch component and an operating state of the energy storage component according to a determination result.
3. The system according to claim 2, wherein the control component is specifically configured to send a first charging instruction to the charging pile if the charging pile can meet a charging requirement of the electric vehicle, where the first charging instruction is configured to instruct the charging pile to output electric energy based on the charging requirement parameter, and control the second switch component to be closed, control the first switch component to be opened, and control the energy storage component to be in a non-working state.
4. The system according to claim 2, wherein the control component is specifically configured to send a first charging instruction to the charging pile when the charging pile cannot meet a charging requirement of the electric vehicle, where the first charging instruction is configured to instruct the charging pile to output electric energy based on the charging requirement parameter, and send a second charging instruction to the energy storage component according to the charging requirement parameter and an electric energy parameter of the charging pile output electric energy, where the second charging instruction is configured to instruct the energy storage component to output electric energy according to a first electric energy output parameter carried in the second charging instruction, and control the first switch component to be closed, control the second switch component to be closed, and control the energy storage component to be in a discharging state, where the first electric energy output parameter is obtained according to the charging requirement parameter and the electric energy parameter of the charging pile output electric energy.
5. The system of claim 2 or 3, wherein the control component is further configured to obtain, in real time, a charging demand parameter of the electric vehicle during a charging process of the electric vehicle, and control the working state of the energy storage component to be changed from a discharging state to a charging state and control the first switch component to be closed and the second switch component to be kept closed when the charging pile can meet the charging demand of the charging vehicle and the output electric energy remains.
6. The system according to claim 1, wherein the control component is specifically configured to determine, when the electricity consumption peak-valley data indicates that the current time is in an electricity consumption peak period, whether the energy storage component can meet a charging requirement of the electric vehicle according to the charging requirement parameter and the capability parameter, and control an operating state of the first switch component and/or the second switch component and an operating state of the energy storage component according to a determination result.
7. The system of claim 6, wherein the control component is specifically configured to send a third charging instruction to the energy storage component if the energy storage component can meet a charging requirement of the electric vehicle, where the third charging instruction is configured to instruct the energy storage component to output electric energy based on the charging requirement parameter, and control the first switch component to be closed, control the second switch component to be opened, and control the energy storage component to be in a discharging state.
8. The system according to claim 6, wherein the control component is specifically configured to send a third charging instruction to the energy storage component when the energy storage component cannot meet a charging requirement of the electric vehicle, where the third charging instruction is configured to instruct the energy storage component to output electric energy based on the charging requirement parameter, and send a fourth charging instruction to the charging pile according to the charging requirement parameter and an electric energy parameter of the energy storage component output electric energy, where the fourth charging instruction is configured to instruct the charging pile to output electric energy according to a second electric energy output parameter carried in the fourth charging instruction, and control the first switch component to be closed, control the second switch component to be closed, and control the energy storage component to be in a discharging state, where the second electric energy output parameter is obtained according to the charging requirement parameter and the electric energy parameter of the energy storage component output electric energy.
9. The system of claim 1, wherein the control component is further configured to obtain a current peak Gu Shuju when the charging gun and the charging pile are both in a non-operating state, and to control the first switch component to be closed and the second switch component to be in a charging state when the current peak valley data indicates that the current time is in a power valley period, so that the charging pile charges the energy storage component.
10. The system of any one of claims 1 to 9, wherein the control component is further configured to perform a three-way handshake with the charging stake and the electric vehicle connected with the charging gun to complete charging protocol authentication prior to receiving the charging demand parameter and the capability parameter.
CN202310694752.1A 2023-06-12 2023-06-12 Charging system Pending CN116512967A (en)

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