CN115333210A - Direct current charging pile control method and device, equipment and storage medium - Google Patents

Direct current charging pile control method and device, equipment and storage medium Download PDF

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Publication number
CN115333210A
CN115333210A CN202211264889.5A CN202211264889A CN115333210A CN 115333210 A CN115333210 A CN 115333210A CN 202211264889 A CN202211264889 A CN 202211264889A CN 115333210 A CN115333210 A CN 115333210A
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charging
state
fault
current
equipment
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CN115333210B (en
Inventor
沈科炬
罗立华
岑迪庆
张霁明
林雯瑜
黄建平
陈浩
李钟煦
陆晓红
杨扬
仇钧
杨跃平
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Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Cixi Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Ningbo Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Cixi Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • 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)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides a direct current charging pile control method, a direct current charging pile control device, direct current charging pile control equipment and a storage medium. The method comprises the following steps: under the condition that the direct current charging pile is connected to the equipment to be charged, detecting the charging state of an electric storage assembly of the equipment to be charged; determining a charging mode of the direct current charging pile according to the charging state, wherein the charging mode comprises a high-speed charging mode and a constant-speed charging mode; charging equipment to be charged according to the charging mode and the detected charging state and running state of the power storage assembly; and stopping charging under the condition that the charging state of the charging equipment reaches the state condition or the charging capacity reaches the capacity condition. According to the invention, the charging state of the power storage component can be detected, the charging mode is selected, the charging state and the running state are detected in the charging process, and the state of the power storage component can be monitored at any time, so that the charging speed can be adjusted in time, the risks of electric leakage, fire and the like caused by the state deterioration of the power storage component are avoided, and the potential safety hazard is reduced.

Description

Direct current charging pile control method and device, equipment and storage medium
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a direct current charging pile control method, a direct current charging pile control device, direct current charging pile control equipment and a storage medium.
Background
In the related art, when the dc charging pile is used to charge the electric vehicle waiting for the charging device, the electric vehicle can be charged at a constant speed only with a fixed charging current, or two charging speeds of quick charging and normal charging can be set, but each charging speed is still fixed. However, the state of the power storage module such as a battery may change constantly, and the fixed charging speed cannot be compatible with the state change of the power storage module, and when the power storage module fails or changes in state such as temperature rises, the charging current cannot be adjusted in time, so that the state of the power storage module continuously deteriorates, and risks such as electric leakage and fire occur, which cause a safety hazard.
The information invented in the background section of this application is only intended to enhance an understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a direct current charging pile control method, a direct current charging pile control device, direct current charging pile control equipment and a storage medium.
In a first aspect of the embodiments of the present invention, a method for controlling a dc charging pile is provided, including:
under the condition that the direct current charging pile is connected to the equipment to be charged, detecting the charging state of an electric storage assembly of the equipment to be charged, wherein the charging state comprises the ratio of the residual electric quantity to the total electric quantity of the electric storage assembly;
determining a charging mode of the direct current charging pile according to the charging state, wherein the charging mode comprises a high-speed charging mode and a constant-speed charging mode;
charging the equipment to be charged according to the charging mode and the detected charging state and operation state of the power storage assembly, wherein the operation state comprises a fault state and an operation environment state of the power storage assembly;
and stopping charging under the condition that the charging state of the charging equipment reaches a state condition or the charging quantity reaches a quantity condition.
According to the embodiment of the invention, determining the charging mode of the direct current charging pile according to the charging state comprises the following steps:
when the charging state is lower than a first proportional threshold, the charging mode is the high-speed charging mode; or when the charging state is higher than or equal to a first proportional threshold, the charging mode is the constant-speed charging mode.
According to an embodiment of the present invention, the charging of the device to be charged according to the charging manner and the detected state of charge and operation of the power storage module, where the operating environment state includes temperature and humidity, includes:
detecting a failure state of the electricity storage module when the charging mode is a high-speed charging mode;
determining a charge rate coefficient according to the charging state, the temperature and the humidity under the condition that the fault state is no fault;
determining a charging current according to the charging rate coefficient and the maximum charging current of the direct current charging pile;
and charging the equipment to be charged according to the charging current.
According to an embodiment of the present invention, determining a charge rate coefficient according to the state of charge and the state of operation when the fault state is no fault includes:
according to the formula
Figure 100002_DEST_PATH_IMAGE001
Determining the charge rate coefficient
Figure DEST_PATH_IMAGE002
Wherein SOC represents a state of charge of the power storage module, a is a first proportional threshold value used for determining the charging manner, T d For the actual temperature detected, T s Is a predetermined standard temperature of charge, H d For the actual humidity detected, H m For maximum tolerance of humidity during charging,
Figure 100002_DEST_PATH_IMAGE003
、
Figure DEST_PATH_IMAGE004
and
Figure 100002_DEST_PATH_IMAGE005
in order to obtain the weight coefficient,
Figure DEST_PATH_IMAGE006
are residual terms.
According to an embodiment of the present invention, the charging of the device to be charged according to the charging manner and the detected state of charge and operation of the power storage module, where the operating environment state includes temperature and humidity, includes:
under the condition that the charging mode is a constant-speed charging mode, detecting the fault state of the electric storage assembly at the current moment;
under the condition that the fault state is no fault, determining the charging current corresponding to the current moment according to the temperature and the humidity;
charging the equipment to be charged according to the charging current until the next moment, wherein the interval between the next moment and the current moment is a preset time interval;
and iteratively executing the processes of detecting the fault state and determining the charging current after the preset time interval until the charging state of the charging equipment reaches the state condition or the charging capacity reaches the capacity condition.
According to an embodiment of the present invention, determining a charging current corresponding to a current time according to the temperature and the humidity in a case where the fault state is no fault includes:
according to the formula
Figure 100002_DEST_PATH_IMAGE007
Determining a charging current I c Wherein, T d For the actual temperature detected, T s Is a predetermined standard temperature of charge, H d For the actual humidity detected, H m For maximum tolerated humidity during charging, I m Maximum charging current, t, for a DC charging pile 1 And t 2 Is a predetermined tolerance factor, k 1 Is a first rate coefficient, k 2 Is a secondRate coefficient, and k 1 ＞k 2 。
According to an embodiment of the invention, the method further comprises:
when the fault state is a fault, cutting off the charging current, and detecting at least one of the temperature, the humidity, the voltage, the current, the charging state of the electric storage assembly, the connection state of the direct current charging pile and the electric storage assembly and the identification information of the equipment to be charged;
inputting at least one of the temperature of the power storage assembly, the humidity, the voltage, the current, the charging state, the connection state of the direct current charging pile and the power storage assembly and the identification information of the equipment to be charged into a fault judgment model for processing to obtain fault category information, wherein the fault judgment model is obtained by training according to a preset fault library;
determining a communication address of the equipment to be charged according to the identification information of the equipment to be charged;
and sending the fault category information to the communication address.
According to a second aspect of the present invention, there is provided a dc charging pile control apparatus comprising:
the charging state module is used for detecting the charging state of an electric storage component of the equipment to be charged under the condition that the direct current charging pile is connected to the equipment to be charged, wherein the charging state comprises the ratio of the residual electric quantity to the total electric quantity of the electric storage component;
the charging mode module is used for determining the charging mode of the direct current charging pile according to the charging state, wherein the charging mode comprises a high-speed charging mode and a constant-speed charging mode;
the charging module is used for charging the equipment to be charged according to the charging mode and the charging state and the running state of the electric storage assembly detected in real time, wherein the running state comprises the fault state and the running environment state of the electric storage assembly;
and the stopping module is used for stopping charging when the charging state of the charging equipment reaches a state condition or the charging electric quantity reaches an electric quantity condition.
According to an embodiment of the present invention, the charging mode module is further configured to:
when the charging state is lower than a first proportional threshold, the charging mode is the high-speed charging mode; or when the charging state is higher than or equal to a first proportional threshold, the charging mode is the uniform charging mode.
According to an embodiment of the invention, the operating environment state comprises temperature and humidity, the charging module is further configured to:
detecting a failure state of the electricity storage module when the charging mode is a high-speed charging mode;
determining a charge rate coefficient according to the charging state, the temperature and the humidity under the condition that the fault state is no fault;
determining a charging current according to the charging rate coefficient and the maximum charging current of the direct current charging pile;
and charging the equipment to be charged according to the charging current.
According to an embodiment of the invention, the charging module is further configured to:
according to the formula
Figure 124081DEST_PATH_IMAGE001
Determining the charge rate coefficient
Figure 995216DEST_PATH_IMAGE002
Wherein SOC represents a state of charge of the power storage module, a is a first proportional threshold value used for determining the charging manner, T d For the actual temperature detected, T s At a predetermined standard charging temperature, H d For the actual humidity detected, H m For maximum tolerance of humidity during charging,
Figure 774953DEST_PATH_IMAGE003
、
Figure 170162DEST_PATH_IMAGE004
and
Figure 453376DEST_PATH_IMAGE005
as the weight coefficient,
Figure 275839DEST_PATH_IMAGE006
are residual terms.
According to an embodiment of the invention, the operating environment state comprises temperature and humidity, the charging module is further configured to:
under the condition that the charging mode is a constant-speed charging mode, detecting the fault state of the electric storage assembly at the current moment;
under the condition that the fault state is no fault, determining the charging current corresponding to the current moment according to the temperature and the humidity;
charging the equipment to be charged according to the charging current until the next moment, wherein the interval between the next moment and the current moment is a preset time interval;
and iteratively executing the processes of detecting the fault state and determining the charging current after the preset time interval until the charging state of the charging equipment reaches the state condition or the charging capacity reaches the capacity condition.
According to an embodiment of the invention, the charging module is further configured to:
according to the formula
Figure 746134DEST_PATH_IMAGE007
Determining a charging current I c Wherein, T d For the actual temperature detected, T s At a predetermined standard charging temperature, H d For the actual humidity detected, H m For maximum tolerated humidity during charging, I m Maximum charging current, t, for a DC charging pile 1 And t 2 Is a predetermined tolerance factor, k 1 Is a first rate factor，k 2 Is a second rate coefficient, and k 1 ＞k 2 。
According to an embodiment of the present invention, the apparatus further includes a failure determination module, configured to:
under the condition that the fault state is that a fault exists, cutting off charging current, and detecting at least one of the temperature, the humidity, the voltage, the current, the charging state of the electric storage assembly, the connection state of the direct current charging pile and the electric storage assembly and identification information of equipment to be charged;
inputting at least one of the temperature of the power storage assembly, the humidity, the voltage, the current, the charging state, the connection state of the direct current charging pile and the power storage assembly and the identification information of the equipment to be charged into a fault judgment model for processing to obtain fault category information, wherein the fault judgment model is obtained by training according to a preset fault library;
determining a communication address of the equipment to be charged according to the identification information of the equipment to be charged;
and sending the fault category information to the communication address.
In a third aspect of the embodiments of the present invention, there is provided a dc charging pile control apparatus, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to invoke the memory-stored instructions to perform the above-described method.
In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, on which computer program instructions are stored, wherein the computer program instructions, when executed by a processor, implement the above method.
According to the direct-current charging pile control method provided by the embodiment of the invention, the charging state of the electric storage assembly can be detected, the charging mode is selected, and the charging state and the running state are detected in the charging process, so that the state of the electric storage assembly can be monitored at any time in the charging process, the charging speed can be adjusted in time, the state deterioration of the electric storage assembly is avoided, the dangers of electric leakage, fire and the like are avoided, and the potential safety hazard is reduced.
Drawings
Fig. 1 exemplarily shows a flow chart of a dc charging pile control method according to an embodiment of the present invention;
fig. 2 is a schematic case diagram schematically illustrating a dc charging pile control method according to an embodiment of the present invention;
fig. 3 exemplarily shows a block diagram of the dc charging pile control apparatus according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is merely an association describing an associated object, meaning that three relationships may exist, for example, and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprises A, B and C" and "comprises A, B, C" means that all three of A, B, C comprise, "comprises A, B or C" means that one of three of A, B, C is comprised, "comprises A, B and/or C" means that any 1 or any 2 or 3 of the three of A, B, C is comprised.
It should be understood that in the present invention, "B corresponding to a", "a corresponds to B", or "B corresponds to a" means that B is associated with a, and B can be determined from a. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information. And the matching of A and B means that the similarity of A and B is greater than or equal to a preset threshold value.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 exemplarily shows a flowchart of a dc charging pile control method according to an embodiment of the present invention, and as shown in fig. 1, the method includes:
step S101, detecting the charging state of an electric storage component of a device to be charged under the condition that a direct current charging pile is connected to the device to be charged, wherein the charging state comprises the ratio of the residual electric quantity to the total electric quantity of the electric storage component;
step S102, determining a charging mode of the direct current charging pile according to the charging state, wherein the charging mode comprises a high-speed charging mode and a constant-speed charging mode;
step S103, charging the equipment to be charged according to the charging mode and the detected charging state and running state of the electric storage assembly, wherein the running state comprises the fault state and the running environment state of the electric storage assembly;
and step S104, stopping charging when the charging state of the charging equipment reaches a state condition or the charging quantity reaches an electric quantity condition.
According to the direct-current charging pile control method, the charging state of the electric storage assembly can be detected, the charging mode is selected, and the charging state and the running state are detected in the charging process, so that the state of the electric storage assembly can be monitored at any time in the charging process, the charging speed can be adjusted in time, the risks of electric leakage, fire and the like caused by the state deterioration of the electric storage assembly are avoided, and potential safety hazards are reduced.
According to the embodiment of the invention, the electric vehicle waits for the charging device, and after a period of use, the amount of electricity is reduced, and in this case, the charging device to be charged can be charged. The device to be charged may comprise an electrical storage component, e.g. a battery, i.e. the electrical storage component of the device to be charged may be charged.
According to the embodiment of the invention, when the power storage component is charged, the charging pile can be used for charging, for example, under the condition of having a quick charging requirement, the direct current charging pile can be used for charging, so that the charging current and the charging power can be better controlled. Usually, the direct current fills electric pile is three-phase four-wire alternating current, and the output is the direct current, and usable output direct current charges for the electric power storage component.
According to the embodiment of the present invention, in step S101, when the electric vehicle waits for the charging device to be connected to the dc charging post, that is, when the dc charging post is connected to the power storage module of the device to be charged, the charging state of the power storage module, that is, the ratio of the remaining capacity of the power storage module to the total capacity, that is, the percentage of the remaining capacity, may be detected first. In an example, the percentage may be used to determine the rate of charging, and if the remaining charge is low, the charging may be performed at a faster rate, and if the remaining charge is high, the charging may be performed at a medium or slower rate. The invention is not limited in this regard.
According to an embodiment of the present invention, in step S102, a charging manner may be selected according to the charging state obtained above. As described above, a faster charging speed or a slower charging speed may be selected depending on the charging state. In an example, a threshold value of the state of charge may be set as a reference for selecting a faster charging speed or a slower charging speed.
According to an embodiment of the present invention, step S102 may include: when the charging state is lower than a first proportional threshold, the charging mode is the high-speed charging mode; or when the charging state is higher than or equal to a first proportional threshold, the charging mode is the constant-speed charging mode.
According to an embodiment of the present invention, the first proportional threshold may be a percentage threshold, for example, 80%, 60%, or the like, and in the case where the state of charge is higher than the first proportional threshold, the state of charge of the power storage component may be regarded as being high, that is, the remaining amount is large, and the uniform rate charging mode may be selected, and in the case where the state of charge is lower than or equal to the first proportional threshold, the state of charge of the power storage component may be regarded as being low, that is, the remaining amount is small, and the high rate charging mode may be selected, thereby rapidly increasing the state of charge of the power storage component.
In this way, the charging mode can be determined based on the charging state detected in real time, and then the charging speed is determined, so that different charging states are used for charging under different charging states, and therefore, the charging efficiency when the charging state is low and the safety when the charging state is high are improved.
According to the embodiment of the invention, in step S13, after the charging manner is determined, charging may be performed using the determined charging manner, and the state of charge and the state of operation of the power storage component are continuously detected during charging. The operating state may include a fault state of the power storage component and an operating environment state, among others. The fault state may indicate whether the power storage module is faulty, and the operating environment state may indicate conditions of an environment in which the power storage module is located, for example, conditions of temperature, humidity, and the like of the power storage module.
According to the embodiment of the present invention, in the charging process, different charging manners are used, and the magnitude of the charging current may be different from each other, for example, as described above, the charging manner may include a high-speed charging manner and a constant-speed charging manner, the charging speed of the high-speed charging manner is faster than the charging speed of the constant-speed charging manner, and accordingly, the charging current of the high-speed charging manner is greater than the charging current of the constant-speed charging manner.
According to the embodiment of the invention, the charging currents can be respectively determined based on the determined charging modes, so that different charging currents are determined to charge the equipment to be charged under the condition of using different charging modes.
According to the embodiment of the invention, if the current state of charge of the power storage component is lower than the first proportional threshold, the high-speed charging manner may be used. In this case, step S103 may include: detecting a failure state of the electricity storage module when the charging mode is a high-speed charging mode; determining a charge rate coefficient according to the charging state, the temperature and the humidity under the condition that the fault state is no fault; determining a charging current according to the charging rate coefficient and the maximum charging current of the direct current charging pile; and charging the equipment to be charged according to the charging current.
According to the embodiment of the present invention, in the case of using the high-speed charging method, the charging safety is an important factor in the charging process, and the temperature and humidity of the power storage module, the voltage and current for charging the power storage module, and the like can all reflect the charging safety condition. In the example, the above factors may each cause a failure state, and if the power storage component fails, a potential safety hazard such as electric leakage, ignition, or the like may occur, and therefore, the failure state of the power storage component may be determined first. When the failure state of the power storage module is no failure, the charging is performed again, and the safety of the charging can be improved. Also, the failure state of the power storage module may be continuously monitored during charging of the power storage module, for example, the temperature and humidity of the power storage module may be continuously monitored, and whether the temperature and humidity reach the degree of failure or not may be determined, and if the temperature or humidity is too high, the failure state of the power storage module may be indicated as the presence of a failure, and further the cause of the failure or the like may be detected.
According to the embodiment of the invention, if it is determined that the failure state of the power storage module is non-failure, the charging current for charging the storage battery can be determined in real time, so that the power storage module is charged with the charging current. In an example, a charge rate coefficient may be determined based on the state of charge, the temperature, and the humidity, and a charge current actually charged may be determined using the charge rate coefficient and a maximum charge current of the dc charging pole.
According to an embodiment of the present invention, a charge rate coefficient may be first determined, and the charge rate coefficient may be a scaling coefficient, which may be used to indicate that the magnitude of the current charging current is a percentage of the magnitude of the maximum charging current of the dc charging post. The charge rate coefficient may be determined based on the state of charge, the temperature, and the humidity of the storage battery detected in real time.
In an example, the charge rate coefficient may be determined using the following equation (1):
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（1）
wherein the content of the first and second substances,
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for a charge rate coefficient, SOC represents the state of charge of the electrical storage component, A is a first proportional threshold used to determine the charging mode, T d For the actual temperature detected, T s At a predetermined standard charging temperature, H d For the actual humidity detected, H m For the maximum allowable humidity during the charging process,
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、
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and
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in order to obtain the weight coefficient,
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are residual terms.
According to the embodiment of the invention, in the formula (1), a term representing the state of charge of the power storage component, a term of the temperature of the power storage component, and a term of the temperature of the power storage component may be included.
According to the embodiment of the invention, in the term indicating the state of charge of the power storage component, a ratio between the state of charge detected in real time and the first ratio threshold may be subtracted from 1, in which the smaller the state of charge detected in real time, the smaller the ratio, the larger the term indicating the state of charge of the power storage component, that is, the closer to 1. Conversely, the larger the state of charge detected in real time (the closer to the first ratio threshold), the larger the ratio, the smaller the term representing the state of charge of the power storage component, that is, the closer to 0. In summary, the term is such that the smaller the state of charge of the power storage module, the larger the charge rate coefficient and the faster the charging speed, and the smaller the charge rate coefficient and the slower the charging speed when the state of charge approaches the first proportional threshold. And under the condition that the charging state exceeds the first proportion threshold, charging can be carried out by using a constant-speed charging mode, and the formula is not applicable any more.
According to the embodiment of the invention, in the term indicating the temperature of the electrical storage component, 1 minus the ratio between the actual temperature detected in real time and the charge standard temperature may be used. In this term, the lower the temperature detected in real time, the smaller the ratio, the larger the term representing the temperature of the power storage component, that is, the closer to 1, the larger the charge rate coefficient and the faster the charging speed can be made. Conversely, the higher the temperature detected in real time (the closer to the charge standard temperature), the larger the ratio, the smaller the term representing the temperature of the electrical storage component, that is, the closer to 0. If the temperature detected in real time exceeds the charge standard temperature, the term indicating the temperature of the electrical storage component is a negative value, and the higher the temperature, the smaller the term, i.e., the larger the absolute value, the smaller the charge rate coefficient is, the slower the charging speed, the slower the temperature rise speed of the electrical storage component, or the lower the temperature of the electrical storage component is.
According to the embodiment of the invention, the formula can further comprise an item representing the humidity of the power storage module, and when the humidity of the power storage module is higher, the internal circuit of the power storage module is easily short-circuited, so that potential safety hazards such as electric leakage and fire are caused. Therefore, in the term representing the humidity of the power storage module, the smaller the actual humidity detected in real time is, that is, the larger the difference from the maximum allowable humidity during charging is, the larger the term is, and thus the larger the charge rate coefficient is, the faster the charging speed is. On the contrary, the larger the actual humidity detected in real time is, that is, the smaller the difference between the actual humidity detected in real time and the maximum allowable humidity in the charging process is, the smaller the actual humidity is, so that the charging rate coefficient is smaller, the charging speed is slower, the humidity rising speed is slowed down, or the humidity is reduced, and the safety of the charging process is improved.
According to the embodiment of the invention, after the above term representing the state of charge of the power storage module, the term representing the temperature of the power storage module, and the term representing the humidity of the power storage module are determined, the above terms can be subjected to weighted summation, and the weight coefficient is the weight coefficient
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、
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And
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the weight coefficient may be preset, or may be obtained by performing optimization solution based on actually measured state of charge, temperature, and humidity in multiple charging processes. The optimization solving process can use methods such as a genetic algorithm, a neural network model and the like, and the method does not limit the obtaining mode of the weight coefficient.
According to the embodiment of the present invention, in order to avoid the result of 0 obtained after weighted summation of the above terms, a residual term can be further set
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The number of the residual term may be a preset decimal, and the present invention does not limit the specific number of the residual term.
According to an embodiment of the invention, the charge rate coefficient may also be limited, i.e. limited to 1, such that the charging current does not exceed the maximum charging current. The charge rate coefficient remains as it is in the case where the sum of the weighted sum value of the above polynomials and the residual term is less than 1, and may be set to 0 in the case where the sum of the weighted sum value of the above polynomials and the residual term is greater than or equal to 1.
In this way, the term representing the state of charge of the power storage module, the term representing the temperature of the power storage module, and the term representing the humidity of the power storage module can be set in the charge rate coefficient, and in the case where the above terms are close to the failure state, the charge rate coefficient is reduced, the charging speed is slowed, and thereby the charging safety is improved. And under the condition that the items are far away from the fault state, the charging rate coefficient is increased, the charging speed is accelerated, and therefore the charging efficiency is improved.
According to the embodiment of the invention, after the charging rate coefficient is determined, the product of the charging rate coefficient and the maximum charging current of the direct current charging pile can be determined, so that the charging current is determined, and the electric storage component is charged by using the charging current. Further, the fault state, the charging state, the temperature and the humidity of the power storage assembly can be detected in real time in the charging process, so that the charging rate coefficient can be adjusted in real time, the charging current can be changed, and the power storage assembly can be charged by using the proper charging current all the time.
In this way, it is possible to set the term representing the state of charge of the power storage module, the term representing the temperature of the power storage module, and the term representing the humidity of the power storage module in the charge rate coefficient, and determine the charge rate coefficient based on the above terms. And the fault state, the charging state, the temperature and the humidity of the electric power storage assembly can be detected in real time, so that the charging rate coefficient is adjusted in real time, the charging current is matched with the real-time state of the electric power storage assembly, and the electric power storage assembly is charged at a proper charging current all the time.
According to the embodiment of the invention, if the state of charge of the power storage component is higher than or equal to the first proportional threshold, that is, the remaining capacity of the power storage component is high, the charging may be performed using the uniform-speed charging. Step S103 may include: under the condition that the charging mode is a constant-speed charging mode, detecting the fault state of the electric storage assembly at the current moment; under the condition that the fault state is no fault, determining the charging current corresponding to the current moment according to the temperature and the humidity; charging the equipment to be charged according to the charging current until the next moment, wherein the interval between the next moment and the current moment is a preset time interval; and iteratively executing the processes of detecting the fault state and determining the charging current after the preset time interval until the charging state of the charging equipment reaches the state condition or the charging capacity reaches the capacity condition.
According to the embodiment of the present invention, in the case of performing charging by using a constant-speed charging method, in order to reduce the detection pressure and the calculation load, detection may be performed at predetermined time intervals, for example, parameters such as a failure state, temperature, and humidity of the power storage module may be detected.
According to an embodiment of the present invention, in the case where the fault state at the present time is no fault, the charging current may be calculated based on the temperature and the humidity. In an example, in a case where the fault state is no fault, determining a charging current corresponding to a current time according to the temperature and the humidity includes: determining the charging current I according to equation (2) c ：
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（2）
Wherein, I c For charging current, T d For the actual temperature detected, T s At a predetermined standard charging temperature, H d For the actual humidity detected, H m For maximum tolerated humidity during charging, I m Maximum charging current, t, for a DC charging pile 1 And t 2 Is a predetermined tolerance factor, k 1 Is a first rate coefficient, k 2 Is a second rate coefficient, and k 1 ＞k 2 。
According to the embodiment of the invention, the tolerance coefficient t can be preset 1 And t 2 Tolerance coefficient is a proportionality coefficient, t 1 < 1 and t 2 < 1, e.g., t 1 =0.5，t 2 =0.3, tolerance coefficient t of the invention 1 And t 2 The specific values of (a) are not limiting. At the actual temperature which is less than the standard charging temperature and the tolerance coefficient t 1 Under the condition of the product of the maximum tolerance humidity and the tolerance coefficient t, the actual temperature is lower, and the actual humidity is less than the maximum tolerance humidity and the tolerance coefficient t 2 In the case of the product of (d), the actual humidity is small. That is, the current temperature and humidity are at safe levels, and the charging can be performed at a constant speed by a higher charging current within a preset time period, that is, the charging current is the product of a first rate coefficient and a maximum charging current, and the first rate coefficient is higher.
According to the embodiment of the invention, the actual temperature is higher than the charging standard temperature and the tolerance coefficient t 1 And is less than the charging standard temperature, the actual temperature approaches the charging standard temperature. When the actual humidity is larger than the maximum tolerance humidity and tolerance coefficient t 2 And if the product of (a) and (b) is less than the maximum allowable humidity, the actual humidity approaches the maximum allowable humidity. In this case, although the current temperature and humidity are still at safe levels, the safety is insufficient, and in order to improve the safety, the constant-speed charging may be performed by using a charging current with a lower temperature, that is, the charging may be performed by using a charging current determined by multiplying the maximum charging current by a lower second rate coefficient within a preset time period.
According to the embodiment of the present invention, in the case that the actual temperature is greater than the charging standard temperature, or the actual humidity is greater than the maximum allowable humidity, it may indicate that the current state is not sufficiently safe, and a fault may be generated, and therefore, the charging may be suspended, that is, the charging current may be set to 0.
According to the embodiment of the invention, after the charging current is determined at the current moment, the power storage component can be charged by using the charging current, and the charging can be continued for the preset time interval. Further, after the preset time interval is reached, the parameters of the power storage module, such as the fault state, the temperature, and the humidity, may be detected again. And recalculating the charging current so as to perform charging at the recalculated temperature charging current for the preset time interval.
According to an embodiment of the present invention, the above processes of detecting the fault state, the temperature and the humidity and calculating the charging current, and charging with the charging current for a preset time interval may be repeatedly iterated until the state of charge reaches the state condition or the amount of charge reaches the charge condition.
In this way, the charging current can be determined by the detected temperature and humidity, and the charging is carried out by the charging current within the preset time interval, so that the real-time detection is not needed under the condition of ensuring the safety, and the detection and operation burden is reduced.
According to the embodiment of the present invention, in step S104, in the case that the charging state of the charging device reaches the state condition, or the charging power amount reaches the power amount condition, the charging is stopped. The state condition may include a value reached by the state of charge, for example, the state of charge is 100%, i.e., full, or the state of charge is 80%, etc., and the present invention is not limited to the state of charge. The electric quantity condition can be the condition that the electric quantity that charges satisfied, for example, direct current fills electric pile and can charges according to the electric quantity, treats that the user of battery charging outfit can pay certain expense, converts into certain electric quantity, and then after the electric quantity that charges reached this electric quantity, can satisfy the electric quantity condition. The charging can be stopped no matter the state condition is satisfied or the electric quantity condition is satisfied.
According to the embodiment of the invention, if a fault occurs in the charging process, such as a fault of short circuit, electric leakage and the like, the detected fault state is that a fault exists, in this case, the charging can be stopped, and the fault type information can be inquired, so that a basis is provided for eliminating the fault.
According to an embodiment of the invention, the method further comprises: under the condition that the fault state is that a fault exists, cutting off charging current, and detecting at least one of the temperature, the humidity, the voltage, the current, the charging state of the electric storage assembly, the connection state of the direct current charging pile and the electric storage assembly and identification information of equipment to be charged; inputting at least one of the temperature of the power storage assembly, the humidity, the voltage, the current, the charging state, the connection state of the direct current charging pile and the power storage assembly and the identification information of the equipment to be charged into a fault judgment model for processing to obtain fault category information, wherein the fault judgment model is obtained by training according to a preset fault library; determining a communication address of the equipment to be charged according to the identification information of the equipment to be charged; and sending the fault category information to the communication address.
According to an embodiment of the present invention, the fault category information may be identified using a fault determination model. In an example, at least one of the temperature, the humidity, the voltage, the current, the charging state of the power storage assembly, the connection state of the direct current charging pile and the power storage assembly, and the identification information of the device to be charged can be collected in real time as the input of the fault judgment model. The fault judgment model may be trained based on historical data in a fault library, for example, the fault judgment model may be obtained by training based on fault category information in the historical data and the above data temperature data characteristics when a certain category of fault occurs. In an example, the fault determination model may be a neural network model, a regression model, a support vector machine model, a bayesian model, or the like, and may be used to determine the fault category information. The invention does not limit the type of the fault judgment model.
According to the embodiment of the invention, the fault type information can be determined through the judgment of the fault judgment model, for example, temperature short circuit and leakage fault caused by overhigh temperature or overhigh humidity; the connection between the charging pile and the power storage assembly fails; a failure in which the identification information of the device to be charged does not match the payment information (for example, a certain user pays for charging his or her own electric vehicle, but the recognized payment information does not match the identification information of the electric vehicle), or the like.
According to the embodiment of the invention, after the fault category information is determined, a communication address of the device to be charged, for example, a communication address of a user of the device to be charged, for example, an email address, a mobile phone number, and the like, may be determined based on the identification information of the device to be charged, and the communication address may be matched with the identification information of the device to be charged, that is, based on the identification information, the communication address may be queried.
According to the embodiment of the invention, after the communication address is inquired, the fault category information can be sent to the communication address, so that a user of the equipment to be charged can obtain the fault information of the equipment to be charged, and a data basis is provided for fault removal processing such as maintenance and replacement.
According to the direct-current charging pile control method, the charging mode can be determined based on the charging state detected in real time, the charging speed is further determined, and therefore charging is carried out by using different charging states under different charging states, so that the charging efficiency when the charging state is low and the safety when the charging state is high are improved. And in the high-speed charging mode, a term representing a state of charge of the power storage module, a term representing a temperature of the power storage module, and a term representing a humidity of the power storage module are set in the charge rate coefficient, and the charge rate coefficient is determined based on the above terms. And the fault state, the charging state, the temperature and the humidity of the electric storage assembly can be detected in real time, so that the charging rate coefficient is adjusted in real time, the charging current is matched with the real-time state of the electric storage assembly, and the electric storage assembly is charged at a proper charging current all the time. And under the uniform-speed charging mode, the charging current is determined according to the detected temperature and humidity, and the charging is carried out by the charging current within a preset time interval, so that under the condition of ensuring safety, real-time detection is not needed, and the detection and operation burden is reduced. The charging speed can be adjusted in time, the state deterioration of the electric storage assembly is avoided, the dangers of electric leakage, fire and the like are avoided, and the potential safety hazard is reduced. And the fault type can be detected when a fault occurs, and the fault type is sent to a communication address of a user of the equipment to be charged, so that a data basis is provided for fault removal.
Fig. 2 exemplarily shows a case schematic diagram of the method for controlling the dc charging pile according to the embodiment of the present invention, as shown in fig. 2, when the dc charging pile is connected to the power storage component of the device to be charged, it may be determined whether the charging state is smaller than a first proportional threshold, if so, the charging is performed by using a high-speed charging method, and if not, the charging is performed by using a constant-speed charging method.
According to the embodiment of the present invention, when charging is performed using a high-speed charging method, it is possible to detect a failure state of the power storage module in real time and calculate the charge rate coefficient using the formula (1) in the absence of a failure, the formula (1) including the term representing the state of charge of the power storage module, the term representing the temperature of the power storage module, and the term representing the humidity of the power storage module, so that the power storage module can be charged at an appropriate charging current in various states.
According to the embodiment of the invention, when the constant-speed charging mode is used for charging, the fault state can be detected once at preset time intervals, and the formula (2) is used for calculating the charging current when no fault exists. Therefore, the detection pressure can be reduced under the condition of ensuring the charging safety, and the real-time detection is not needed.
According to the embodiment of the invention, if a fault is found during the detection of the fault state, the charging current can be cut off, the fault type information is determined through the fault judgment model and is sent to the communication address, so that a data basis is provided for the user to remove the fault.
Fig. 3 is a block diagram schematically illustrating a dc charging pile control apparatus according to an embodiment of the present invention, and as shown in fig. 3, the apparatus includes:
the charging state module 11 is configured to detect a charging state of an electric storage component of the device to be charged when the dc charging pile is connected to the device to be charged, where the charging state includes a ratio of a remaining electric quantity to a total electric quantity of the electric storage component;
the charging mode module 12 is configured to determine a charging mode of the dc charging pile according to the charging state, where the charging mode includes a high-speed charging mode and a constant-speed charging mode;
the charging module 13 is configured to charge the device to be charged according to the charging mode and a charging state and an operating state of the power storage assembly detected in real time, where the operating state includes a fault state and an operating environment state of the power storage assembly;
and a stopping module 14, configured to stop charging when the charging state of the charging device reaches a state condition or the charging capacity reaches a capacity condition.
According to an embodiment of the present invention, the charging mode module is further configured to:
when the charging state is lower than a first proportional threshold, the charging mode is the high-speed charging mode; or
And under the condition that the charging state is higher than or equal to a first proportional threshold, the charging mode is the constant-speed charging mode.
According to an embodiment of the present invention, the operating environment state includes temperature and humidity,
the charging module is further to:
detecting a failure state of the electricity storage module when the charging mode is a high-speed charging mode;
determining a charge rate coefficient according to the charging state, the temperature and the humidity under the condition that the fault state is no fault;
determining a charging current according to the charging rate coefficient and the maximum charging current of the direct current charging pile;
and charging the equipment to be charged according to the charging current.
According to an embodiment of the invention, the charging module is further configured to:
according to the formula
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Determining the charge rate coefficient
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Wherein SOC represents a state of charge of the power storage module, a is a first proportional threshold value used for determining the charging manner, T d For the actual temperature detected, T s Is a predetermined standard temperature of charge, H d For the actual humidity detected, H m For maximum capacity during chargingThe humidity of the mixture is kept for a long time,
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、
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and
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in order to obtain the weight coefficient,
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are residual terms.
According to an embodiment of the present invention, the operating environment state includes temperature and humidity,
the charging module is further configured to:
under the condition that the charging mode is a constant-speed charging mode, detecting the fault state of the electric storage assembly at the current moment;
under the condition that the fault state is no fault, determining the charging current corresponding to the current moment according to the temperature and the humidity;
charging the equipment to be charged according to the charging current until the next moment, wherein the interval between the next moment and the current moment is a preset time interval;
and iteratively executing the processes of detecting the fault state and determining the charging current after the preset time interval until the charging state of the charging equipment reaches the state condition or the charging capacity reaches the capacity condition.
According to an embodiment of the invention, the charging module is further configured to:
according to the formula
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Determining the charging current I c Wherein, T d For the actual temperature detected, T s At a predetermined standard charging temperature, H d For detected actual wetnessDegree H m Maximum tolerated humidity during charging, I m Maximum charging current, t, for a DC charging pile 1 And t 2 Is a predetermined tolerance factor, k 1 Is a first rate coefficient, k 2 Is a second rate coefficient, and k 1 ＞k 2 。
According to an embodiment of the present invention, the apparatus further includes a failure determination module configured to:
under the condition that the fault state is that a fault exists, cutting off charging current, and detecting at least one of the temperature, the humidity, the voltage, the current, the charging state of the electric storage assembly, the connection state of the direct current charging pile and the electric storage assembly and identification information of equipment to be charged;
inputting at least one of the temperature of the power storage assembly, the humidity, the voltage, the current, the charging state, the connection state of the direct current charging pile and the power storage assembly and the identification information of the equipment to be charged into a fault judgment model for processing to obtain fault category information, wherein the fault judgment model is obtained by training according to a preset fault library;
determining a communication address of the equipment to be charged according to the identification information of the equipment to be charged;
and sending the fault category information to the communication address.
The present invention may be methods, apparatus, systems and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therewith for carrying out aspects of the invention.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be interpreted as a transitory signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or an electrical signal transmitted through an electrical wire.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
The computer program instructions for carrying out operations of the present invention may be assembler instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing an electronic circuit, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA), with state information of computer-readable program instructions, which can execute the computer-readable program instructions.
Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer readable program instructions.
These computer-readable program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It is noted that, unless expressly stated otherwise, all features disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features. Where used, further, preferably, still further and more preferably is a brief introduction to the description of the other embodiment based on the foregoing embodiment, the combination of the contents of the further, preferably, still further or more preferably back strap with the foregoing embodiment being a complete construction of the other embodiment. Several further, preferred, still further or more preferred arrangements of the back tape of the same embodiment may be combined in any combination to form a further embodiment.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A direct current charging pile control method is characterized by comprising the following steps:
under the condition that the direct current charging pile is connected to the equipment to be charged, detecting the charging state of an electric storage assembly of the equipment to be charged, wherein the charging state comprises the ratio of the residual electric quantity to the total electric quantity of the electric storage assembly;
determining a charging mode of the direct current charging pile according to the charging state, wherein the charging mode comprises a high-speed charging mode and a constant-speed charging mode;
charging the equipment to be charged according to the charging mode and the detected charging state and operation state of the power storage assembly, wherein the operation state comprises a fault state and an operation environment state of the power storage assembly;
and stopping charging under the condition that the charging state of the charging equipment reaches a state condition or the charging quantity reaches a quantity condition.
2. The method of claim 1, wherein determining the charging mode of the dc charging pile according to the charging status comprises:
when the charging state is lower than a first proportional threshold, the charging mode is the high-speed charging mode; or when the charging state is higher than or equal to a first proportional threshold, the charging mode is the uniform charging mode.
3. The method according to claim 1, wherein the operating environment state includes temperature and humidity, and charging the device to be charged according to the charging manner and the detected state of charge and operating state of the power storage component includes:
detecting a failure state of the electricity storage module when the charging mode is a high-speed charging mode;
determining a charge rate coefficient according to the charging state, the temperature and the humidity under the condition that the fault state is no fault;
determining a charging current according to the charging rate coefficient and the maximum charging current of the direct current charging pile;
and charging the equipment to be charged according to the charging current.
4. The method of claim 3, wherein determining a charge rate factor based on the state of charge and the state of operation in the event that the fault condition is non-fault comprises:
according to the formula
Figure DEST_PATH_IMAGE001
Determining the charge rate coefficient
Figure 247540DEST_PATH_IMAGE002
Wherein SOC represents a state of charge of the power storage module, a is a first proportional threshold used for determining the charging manner, T d For the actual temperature detected, T s At a predetermined standard charging temperature, H d For the actual humidity detected, H m For maximum tolerance of humidity during charging,
Figure DEST_PATH_IMAGE003
、
Figure 758155DEST_PATH_IMAGE004
and
Figure DEST_PATH_IMAGE005
as the weight coefficient,
Figure 6734DEST_PATH_IMAGE006
are residual terms.
5. The method according to claim 1, wherein the operating environment state includes temperature and humidity, and the charging of the device to be charged according to the charging manner and the detected state of charge and operating state of the power storage component includes:
under the condition that the charging mode is a constant-speed charging mode, detecting the fault state of the electric storage assembly at the current moment;
under the condition that the fault state is no fault, determining the charging current corresponding to the current moment according to the temperature and the humidity;
charging the equipment to be charged according to the charging current until the next moment, wherein the interval between the next moment and the current moment is a preset time interval;
and iteratively executing the processes of detecting the fault state and determining the charging current after the preset time interval until the charging state of the charging equipment reaches the state condition or the charging capacity reaches the capacity condition.
6. The method of claim 5, wherein determining a charging current corresponding to a current time based on the temperature and the humidity in a case where the fault state is no fault comprises:
according to the formula
Figure DEST_PATH_IMAGE007
Determining the charging current I c Wherein, T d For the actual temperature detected, T s At a predetermined standard charging temperature, H d For the actual humidity detected, H m For maximum tolerated humidity during charging, I m Maximum charging current, t, for a DC charging pile 1 And t 2 Is a predetermined tolerance factor, k 1 Is a first rate coefficient, k 2 Is a second rate coefficient, and k 1 ＞k 2 。
7. The method of claim 1, further comprising:
when the fault state is a fault, cutting off the charging current, and detecting at least one of the temperature, the humidity, the voltage, the current, the charging state of the electric storage assembly, the connection state of the direct current charging pile and the electric storage assembly and the identification information of the equipment to be charged;
inputting at least one of the temperature of the power storage assembly, the humidity, the voltage, the current, the charging state, the connection state of the direct current charging pile and the power storage assembly and the identification information of the equipment to be charged into a fault judgment model for processing to obtain fault category information, wherein the fault judgment model is obtained by training according to a preset fault library;
determining a communication address of the equipment to be charged according to the identification information of the equipment to be charged;
and sending the fault category information to the communication address.
8. A direct current fills electric pile controlling means, its characterized in that includes:
the charging state module is used for detecting the charging state of an electric storage component of the equipment to be charged under the condition that the direct current charging pile is connected to the equipment to be charged, wherein the charging state comprises the ratio of the residual electric quantity to the total electric quantity of the electric storage component;
the charging mode module is used for determining the charging mode of the direct current charging pile according to the charging state, wherein the charging mode comprises a high-speed charging mode and a constant-speed charging mode;
the charging module is used for charging the equipment to be charged according to the charging mode and the charging state and the running state of the power storage assembly detected in real time, wherein the running state comprises the fault state and the running environment state of the power storage assembly;
and the stopping module is used for stopping charging under the condition that the charging state of the charging equipment reaches a state condition or the charging electric quantity reaches an electric quantity condition.
9. The utility model provides a direct current fills electric pile controlgear which characterized in that includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to invoke the memory-stored instructions to perform the method of any one of claims 1 to 7.
10. A computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of any one of claims 1 to 7.
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