CN114050635B - Staged voltage regulating method and system for charging pile - Google Patents

Staged voltage regulating method and system for charging pile Download PDF

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Publication number
CN114050635B
CN114050635B CN202210034143.9A CN202210034143A CN114050635B CN 114050635 B CN114050635 B CN 114050635B CN 202210034143 A CN202210034143 A CN 202210034143A CN 114050635 B CN114050635 B CN 114050635B
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voltage
voltage regulation
battery
time
charging
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CN114050635A (en
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周必友
苏昕
毕硕威
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Shenzhen Yineng Times Technology Co ltd
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Shenzhen Yineng Times Technology 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
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • 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
    • 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
    • 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
    • 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
    • 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
    • H02J7/0047—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]
    • H02J7/0049—Detection of fully charged condition
    • 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
    • H02J7/005—Detection of state of health [SOH]
    • 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
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery 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
    • H02J7/007188—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
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The application discloses a staged voltage regulating method and system for charging piles, which relate to the technical field of charging piles, and comprise the following steps: connecting a charging gun with equipment to be charged, and charging the equipment to be charged through the charging gun; acquiring battery information of a storage battery in the equipment to be charged through the charging gun; detecting the state information of the charging pile to which the charging gun belongs; generating an initial voltage regulation scheme of a plurality of stages based on the battery information; adjusting all initial voltage regulation schemes based on the state information to obtain final voltage regulation schemes of multiple stages; and regulating the charging voltage of the charging pile when the charging pile charges the equipment to be charged according to the final voltage regulating scheme. The method and the device have the effect of intelligently selecting the proper charging voltage according to the information of the storage battery to be charged.

Description

Staged voltage regulating method and system for charging pile
Technical Field
The application relates to the technical field of charging piles, in particular to a staged voltage regulating method and system for a charging pile.
Background
With the continuous development of society, the development of new energy automobile industry is also growing, and new energy automobiles adopt clean energy as power, so the development of new energy automobiles can contribute a part of force for realizing carbon neutralization and carbon standard reaching. However, rapid development of the industry also brings a series of corresponding problems, wherein the problem of energy supply of automobiles is one of the major problems that new energy automobiles need to face, the problem of energy supply of traditional oil-consuming automobiles can be solved through visible gas stations everywhere, the quantity of charging piles for supplying energy to the new energy automobiles is rare, and most of the charging piles need independent operation of users of the new energy automobiles to complete charging.
In the use process of batteries in a new energy automobile, the terminal voltage of the batteries is unbalanced due to individual difference, temperature difference and the like of the batteries, and in order to avoid worsening of the unbalanced trend, the charging voltage needs to be increased in the charging process to activate and charge the battery pack so as to balance the characteristics of each battery in the battery pack, thereby prolonging the service life of the batteries. Therefore, the automobile user can send the voice prompt of equalizing charge to the user by utilizing the charging pile to charge the battery according to the battery information of the self-to-be-charged equipment by selecting the proper charging voltage, and the service life of the battery of the to-be-charged equipment is prolonged.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: in the process of charging by selecting the charging voltage by a user, the selected charging voltage is not suitable for equalizing charging due to the wrong acquisition of the battery information of the device to be charged or the misoperation during voltage selection, and finally the battery of the device to be charged is easily damaged or the service life of the battery is easily shortened.
Disclosure of Invention
In order to overcome the defect that improper charging voltage is easily selected by manually selecting the charging voltage when the charging pile is used, the application provides a staged voltage regulating method and a staged voltage regulating system for the charging pile.
In a first aspect, the application provides a staged voltage regulation method for a charging pile, comprising the following steps:
connecting a charging gun with equipment to be charged, and charging the equipment to be charged through the charging gun;
acquiring battery information of a storage battery in the equipment to be charged through the charging gun;
detecting the state information of the charging pile to which the charging gun belongs;
generating an initial voltage regulation scheme of a plurality of stages based on the battery information;
adjusting all initial voltage regulation schemes based on the state information to obtain final voltage regulation schemes of multiple stages;
and regulating the charging voltage of the charging pile when the charging pile charges the equipment to be charged according to the final voltage regulating scheme.
By adopting the technical scheme, when the charging pile is used for charging the to-be-charged equipment, a user of the to-be-charged equipment can acquire the battery information of the storage battery in the to-be-charged equipment through the charging gun and generate a multi-stage initial voltage regulation scheme according to the battery information of the storage battery. And meanwhile, the state information of the charging pile can be detected, because the real-time state of the charging pile can influence the stability of the output voltage, the initial voltage regulation scheme is required to be adjusted according to the state information of the charging pile, so that a multi-stage final voltage regulation scheme is obtained, the charging voltage is adjusted according to the final voltage regulation scheme, so that the charging voltage output by the charging pile is the charging voltage which is most suitable for the storage battery on the basis of ensuring the normal output of the charging pile, and therefore, the balanced charging state in the charging process can be easily realized, and the service life of the storage battery is prolonged.
Optionally, the battery information includes a battery model, a battery service time, historical battery fault information, and a real-time battery voltage, and generating an initial voltage regulation scheme in multiple stages based on the battery information includes the following steps:
inquiring the maximum service time of the storage battery according to the battery model;
predicting a budget life of the battery based on the battery usage time and the maximum usage time;
correcting the estimated service life based on the historical fault information of the battery to obtain the ideal service life of the storage battery;
generating an initial voltage regulation scheme for a plurality of stages in conjunction with the ideal service life and the real-time battery voltage.
By adopting the technical scheme, the maximum service time of the storage batteries with different models is different, so the maximum service time of the storage battery with the model is required to be inquired according to the model of the storage battery in the equipment to be charged, the estimated service life of the storage battery can be preliminarily calculated by combining the actual service time of the storage battery, if the storage battery breaks down once and is maintained, the service life of the storage battery is reduced, the preliminarily calculated estimated service life is required to be corrected according to the historical fault information of the storage battery, and the ideal service life of the storage battery is finally obtained.
Optionally, the initial voltage regulation scheme combining the ideal service life and the real-time battery voltage generation multiple stages includes the following steps:
generating a first initial voltage regulating scheme of a first stage according to the real-time battery voltage;
predicting the predicted battery voltage of the real-time battery voltage after voltage regulation in the first initial voltage regulation scheme through a preset voltage prediction model;
generating a second initial voltage regulation scheme for a second phase based on the predicted battery voltage and the ideal service life.
By adopting the technical scheme, the first initial voltage regulation scheme of the first stage is generated by using the real-time battery voltage firstly to realize the primary equalizing charge state, but the real-time battery voltage can change according to the charge, so that the second stage voltage regulation is carried out again according to the battery voltage after the first stage is finished after the charge time of the first stage is finished, the ideal service life calculated by different storage batteries is different, and the upper limit of the charge voltage is determined by the ideal service life, therefore, for better protecting the storage battery, the predicted battery voltage after the first stage is finished needs to be predicted according to the first initial voltage regulation scheme firstly according to the voltage prediction model, and then the second initial voltage regulation scheme of the second stage is generated by combining the ideal service life of the storage battery.
Optionally, the generating the first initial voltage regulation scheme at the first stage according to the real-time battery voltage includes the following steps:
judging whether the real-time battery voltage is greater than a preset first voltage threshold value or not;
if the real-time battery voltage is not greater than the first voltage threshold, calculating a first voltage regulating value according to a preset first proportional value and the real-time battery voltage;
generating a first initial voltage regulation scheme, wherein the first initial voltage regulation scheme is used for regulating the charging voltage to the first voltage regulation value;
if the real-time battery voltage is larger than the first voltage threshold, calculating a second voltage regulating value according to a preset second proportional value and the real-time battery voltage, wherein the first proportional value is larger than the second proportional value;
and generating a first initial voltage regulation scheme, wherein the first initial voltage regulation scheme is used for regulating the charging voltage to the second voltage regulation value.
By adopting the technical scheme, the existing storage capacity of the storage battery can be judged according to the real-time battery voltage, specifically, the judgment is carried out through the preset first voltage threshold, and when the real-time battery voltage is not greater than the first voltage threshold, the existing storage capacity of the storage battery is lower, so that a larger first voltage regulating value can be calculated according to a first proportional value with a larger numerical value and the real-time battery voltage, and a first initial voltage regulating scheme for regulating the charging voltage to the first voltage regulating value is generated; if the real-time battery voltage is greater than the first voltage threshold, it indicates that the current storage capacity of the storage battery is high, and at this time, a second small voltage regulation value needs to be calculated according to a second small proportional value and the real-time battery voltage, and a second initial voltage regulation scheme for regulating the charging voltage to the second voltage regulation value is generated.
Optionally, the generating the second initial voltage regulation scheme at the second stage based on the predicted battery voltage and the ideal service life includes the following steps:
setting a regulating upper limit value according to the ideal service life;
judging whether the predicted battery voltage is larger than a preset second voltage threshold value or not;
if the predicted battery voltage is not greater than the second voltage threshold, generating a second initial voltage regulation scheme, wherein the second initial voltage regulation scheme is to regulate the charging voltage to the voltage regulation upper limit value until the real-time battery voltage exceeds the second voltage threshold;
if the predicted battery voltage is greater than the second voltage threshold, setting an equalizing voltage value based on the real-time battery voltage and an equalizing charging process;
and generating a second initial voltage regulation scheme, wherein the second initial voltage regulation scheme is used for regulating the charging voltage to the equalizing voltage value.
By adopting the technical scheme, after the predicted battery voltage is predicted through the voltage prediction model, the predicted charge capacity of the storage battery after the first-stage charging is judged according to a preset second voltage threshold, wherein the second voltage threshold can be represented as a demarcation point about to be fully charged; if the predicted battery voltage is higher than the second voltage threshold, the storage battery is about to be fully charged, an equalizing voltage value reaching an equalizing charge state when the battery voltage is predicted is set at the moment, and then the charging voltage is adjusted according to the equalizing voltage value, so that the charge state of the storage battery is kept in the equalizing charge state.
Optionally, the state information includes real-time temperature and continuous service time, and the adjusting all initial voltage-regulating schemes based on the state information to obtain final voltage-regulating schemes in multiple stages includes the following steps:
judging whether the real-time temperature exceeds a preset temperature threshold value or not;
if the real-time temperature exceeds the temperature threshold, reducing a first voltage regulating value or a second voltage regulating value in the first initial voltage regulating scheme to obtain a first final voltage regulating scheme of the first stage;
if the real-time temperature does not exceed the temperature threshold, the first initial voltage regulation scheme is not adjusted, and the first initial voltage regulation scheme is used as the first final voltage regulation scheme;
and adjusting the second initial voltage regulation scheme based on the continuous service time to obtain a second final voltage regulation scheme of the second stage.
Through adopting above-mentioned technical scheme, fill partial parameter of electric pile and can influence the stability of the charging voltage who fills electric pile output, including the real-time temperature who fills electric pile, fill electric pile and probably appear the condition that the temperature is too high under the influence of live time or external environment, fill the charging voltage that electric pile output this moment and will be unstable to the influence is to the charge efficiency of battery, probably causes the damage of filling electric pile or battery when serious. The first stage is in a rapid charging stage of the storage battery, so that if the real-time temperature is higher and exceeds a preset temperature threshold value, the voltage regulating value in the first initial voltage regulating scheme in the first stage needs to be reduced, the charging voltage is reduced to avoid the continuous temperature rise of the charging pile as much as possible, and the stability of the charging voltage is guaranteed; if the real-time temperature does not exceed the temperature threshold, the service environment of the charging pile at the moment is relatively good, and therefore the voltage regulating value in the first initial voltage regulating scheme does not need to be adjusted.
Optionally, the adjusting the second initial voltage regulation scheme based on the sustained use time to obtain the second final voltage regulation scheme at the second stage includes the following steps:
judging whether the continuous service time exceeds a preset first time threshold value or not;
if the continuous service time does not exceed the first time threshold, the second initial voltage regulation scheme is not adjusted, and the second initial voltage regulation scheme is used as a second final voltage regulation scheme of the second stage;
if the continuous service time exceeds the first time threshold, judging whether the continuous service time exceeds a preset second time threshold;
if the continuous service time does not exceed the second time threshold, reducing the upper limit value of the voltage regulation in the first initial voltage regulation scheme to obtain a second final voltage regulation scheme;
and if the continuous service time exceeds the second time threshold, reducing the voltage regulation upper limit value or the equilibrium voltage value in the first initial voltage regulation scheme to obtain the second final voltage regulation scheme.
By adopting the technical scheme, when the second-stage charging is achieved, the storage capacity of the storage battery is already in a higher state, so that the second-stage charging process needs to be more stable, and besides the voltage regulation scheme of the first stage is regulated through the real-time temperature of the charging pile, the voltage regulation scheme of the second stage also needs to be regulated according to the continuous service time of the charging pile. If it is longer to fill electric pile duration of service time, there is harmful effects to filling electric pile hardware equipment, leads to charging voltage's output less stable easily, can divide into three gear according to the duration of service time that first time threshold value and second time threshold value that predetermine will fill electric pile.
When the continuous service time does not exceed the first time threshold, the continuous service time of the charging pile is short, and the output of the charging voltage is not easily influenced, so that the voltage regulating scheme is not required to be regulated; if the continuous service time exceeds the first time threshold and does not exceed the second time threshold, the continuous service time of the charging pile is longer, and at the moment, if the charging voltage is higher, the situation that the voltage is unstable easily occurs, so that when the second initial voltage regulation scheme contains the voltage regulation upper limit value, the voltage regulation upper limit value needs to be reduced; if the continuous service time exceeds the second time threshold, the charging pile is long in continuous service time, and the charging voltage is unstable, so that the voltage regulating value type in the second initial voltage regulating scheme is irrelevant, and any voltage regulating value is reduced and adjusted, so that the stability of the charging voltage in the second stage is improved as much as possible.
In a second aspect, the present application also provides a staged voltage regulation system for charging piles, including a memory, a processor and a program stored in the memory and executable on the processor, wherein the program can be loaded and executed by the processor to implement the staged voltage regulation method for charging piles as described in the first aspect.
By adopting the technical scheme, through the calling of the program, the battery information of the storage battery in the equipment to be charged can be acquired through the charging gun, and the multi-stage initial voltage regulation scheme is generated according to the battery information of the storage battery. And meanwhile, the state information of the charging pile can be detected, because the real-time state of the charging pile can influence the stability of the output voltage, the initial voltage regulation scheme is required to be adjusted according to the state information of the charging pile, so that a multi-stage final voltage regulation scheme is obtained, the charging voltage is adjusted according to the final voltage regulation scheme, so that the charging voltage output by the charging pile is the charging voltage which is most suitable for the storage battery on the basis of ensuring the normal output of the charging pile, and therefore, the balanced charging state in the charging process can be easily realized, and the service life of the storage battery is prolonged.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps of obtaining battery information of a storage battery in equipment to be charged through a charging gun, and generating a multi-stage initial voltage regulation scheme according to the battery information of the storage battery. And meanwhile, the state information of the charging pile can be detected, because the real-time state of the charging pile can influence the stability of the output voltage, the initial voltage regulation scheme is required to be adjusted according to the state information of the charging pile, so that a multi-stage final voltage regulation scheme is obtained, the charging voltage is adjusted according to the final voltage regulation scheme, so that the charging voltage output by the charging pile is the charging voltage which is most suitable for the storage battery on the basis of ensuring the normal output of the charging pile, and therefore, the balanced charging state in the charging process can be easily realized, and the service life of the storage battery is prolonged.
2. Partial parameters of the charging pile influence the stability of the charging voltage output by the charging pile, if the real-time temperature is higher and exceeds a preset temperature threshold value, the voltage regulating value in the first initial voltage regulating scheme in the first stage needs to be reduced, the charging voltage is reduced to avoid the continuous temperature rise of the charging pile as much as possible, and the stability of the charging voltage is guaranteed; if the real-time temperature does not exceed the temperature threshold, the service environment of the charging pile at the moment is relatively good, and therefore the voltage regulating value in the first initial voltage regulating scheme does not need to be adjusted.
Drawings
Fig. 1 is a schematic flowchart of a staged voltage regulation method for a charging pile according to an embodiment of the present disclosure.
Fig. 2 is a schematic flow chart of a multi-stage initial voltage regulation scheme generated based on battery information according to an embodiment of the present application.
FIG. 3 is a schematic flow diagram of an embodiment of the present application for generating an initial voltage regulation scheme that combines ideal life and real-time battery voltage.
FIG. 4 is a schematic flow diagram of a first initial voltage regulation scheme generated based on a real-time battery voltage according to an embodiment of the present application.
FIG. 5 is a schematic flow diagram of a second initial voltage regulation scheme generated based on a predicted battery voltage and an ideal service life according to one embodiment of the present application.
Fig. 6 is a schematic flow chart of adjusting all initial voltage regulation schemes and obtaining a final voltage regulation scheme of multiple stages according to an embodiment of the present application.
Fig. 7 is a schematic flow chart of adjusting the second initial voltage regulation scheme based on the duration and obtaining the second final voltage regulation scheme according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses a staged voltage regulating method for a charging pile.
Referring to fig. 1, the staged voltage regulation method for charging piles includes the steps of:
and 101, connecting a charging gun with the equipment to be charged, and charging the equipment to be charged through the charging gun.
And 102, acquiring battery information of a storage battery in the equipment to be charged through the charging gun.
The charging gun can charge the device to be charged through the charging interface of the device to be charged, and can read and acquire battery information of the storage battery of the device to be charged from the storage module and the control module of the device to be charged.
And 103, detecting the state information of the charging pile to which the charging gun belongs.
The state information of the charging pile is detected through a detection system of the charging pile, and real-time detection data are obtained.
And 104, generating a plurality of stages of initial voltage regulation schemes based on the battery information.
And 105, adjusting all initial voltage regulation schemes based on the state information to obtain final voltage regulation schemes in multiple stages.
And 106, regulating the charging voltage of the charging pile when the charging pile charges the equipment to be charged according to the final voltage regulation scheme.
The implementation principle of the embodiment is as follows:
when the charging pile is needed to charge the to-be-charged equipment, a user of the to-be-charged equipment connects a charging gun on the charging pile with the to-be-charged equipment, battery information of a storage battery in the to-be-charged equipment can be acquired through the charging gun, and a multi-stage initial voltage regulating scheme is generated according to the battery information of the storage battery. And meanwhile, the state information of the charging pile can be detected, because the real-time state of the charging pile can influence the stability of the output voltage, the initial voltage regulation scheme is required to be adjusted according to the state information of the charging pile, so that a multi-stage final voltage regulation scheme is obtained, the charging voltage is adjusted according to the final voltage regulation scheme, so that the charging voltage output by the charging pile is the charging voltage which is most suitable for the storage battery on the basis of ensuring the normal output of the charging pile, and therefore, the balanced charging state in the charging process can be easily realized, and the service life of the storage battery is prolonged.
In step 104 of the embodiment shown in fig. 1, the battery information includes the battery model, the battery service time, the battery historical fault information, and the real-time battery voltage, and the ideal service life of the storage battery can be calculated according to the battery information, and then the initial voltage regulation scheme is generated by combining the real-time battery voltage. This is explained in detail with reference to the embodiment shown in fig. 2.
Referring to fig. 2, generating a multi-stage initial voltage regulation scheme based on battery information includes the steps of:
and 201, inquiring the maximum service time of the storage battery according to the model of the storage battery.
The method comprises the steps of establishing communication connection with the Internet through a cellular network, carrying out query retrieval in the Internet by taking a battery model as a keyword, retrieving battery parameters of a storage battery conforming to the battery model, and screening out the maximum service time in the battery parameters through a data screening function.
And 202, predicting the estimated service life of the storage battery based on the battery service time and the maximum service time.
Since the battery service time is the service time accumulated from the shipment of the storage battery to the present, the estimated service life of the storage battery can be predicted by calculating the difference between the maximum service time and the battery service time.
And 203, correcting the estimated service life based on the historical fault information of the battery to obtain the ideal service life of the storage battery.
The method comprises the steps of counting the failure times in historical failure information, correcting the service life of a budget by combining a preset correction proportion and the failure times, wherein the failure times are in direct proportion to the correction proportion. For example, assuming that the preset correction ratio is 200%, the number of failures is 10, and the estimated service life is 500h, the corrected ideal service life is 500- (10 × 200%) =480 h.
An initial voltage regulation scheme is generated for a plurality of stages in conjunction with the desired service life and the real-time battery voltage 204.
The implementation principle of the embodiment is as follows:
the maximum service time of storage batteries of different models is different, so the maximum service time of the storage battery of the model needs to be inquired according to the battery model of the storage battery in the equipment to be charged, the estimated service life of the storage battery can be preliminarily calculated by combining the actual service time of the storage battery, if the storage battery has a fault and is maintained, the service life of the storage battery can be shortened, the preliminarily calculated estimated service life needs to be corrected according to the historical fault information of the storage battery, and the ideal service life of the storage battery is finally obtained.
In step 204 of the embodiment shown in fig. 2, the charging phase is divided into two phases, i.e., a first phase and a second phase, and different initial voltage regulation schemes are generated according to the desired service life and the real-time battery voltage. This is explained in detail with reference to the embodiment shown in fig. 3.
Referring to fig. 3, generating an initial voltage regulation scheme incorporating ideal service life and real-time battery voltage includes the steps of:
301, a first initial voltage regulation scheme for a first phase is generated from the real-time battery voltage.
And 302, predicting the predicted battery voltage of the real-time battery voltage after voltage regulation in the first initial voltage regulation scheme through a preset voltage prediction model.
A second initial voltage regulation scheme for the second stage is generated based on the predicted battery voltage and the desired service life 303.
The implementation principle of the embodiment is as follows:
the method comprises the steps of firstly generating a first initial voltage regulation scheme of a first stage by using real-time battery voltage to realize a primary equalizing charge state, wherein the real-time battery voltage can change according to the charging, so that the voltage regulation of a second stage is required to be carried out again according to the battery voltage after the first stage is finished after the charging time of the first stage is finished, and because the ideal service lives calculated by different storage batteries are different and the upper limit of the charging voltage is determined by the ideal service life, in order to better protect the storage batteries, the predicted battery voltage after the first stage is finished needs to be predicted according to a voltage prediction model according to the first initial voltage regulation scheme, and then the second initial voltage regulation scheme of the second stage is generated by combining the ideal service lives of the storage batteries.
In step 301 of the embodiment shown in fig. 3, the real-time battery voltage of the storage battery is determined by a preset first voltage threshold, so that different proportional values are assigned to calculate different voltage regulation values, and finally different first initial voltage regulation schemes are generated according to the different voltage regulation values. This is explained in detail with reference to the embodiment shown in fig. 4.
Referring to fig. 4, generating a first initial voltage regulation scheme from a real-time battery voltage includes the steps of:
401, determining whether the real-time battery voltage is greater than a preset first voltage threshold, if not, executing step 402; if yes, go to step 404.
And 402, calculating a first voltage regulating value according to a preset first proportional value and the real-time battery voltage.
And 403, generating a first initial voltage regulation scheme, wherein the first initial voltage regulation scheme is used for regulating the charging voltage to a first voltage regulation value.
And 404, calculating a second voltage regulating value according to a preset second proportional value and the real-time battery voltage.
Wherein the first proportional value is greater than the second proportional value.
A first initial voltage regulation scheme is generated 405, the first initial voltage regulation scheme being to regulate the charging voltage to a second voltage regulation value.
The implementation principle of the embodiment is as follows:
the method comprises the steps that the existing storage capacity of a storage battery can be judged according to real-time battery voltage, specifically, the judgment is carried out through a preset first voltage threshold, and when the real-time battery voltage is not larger than the first voltage threshold, the existing storage capacity of the storage battery is lower, so that a first larger voltage regulation value can be calculated according to a first proportional value with a larger numerical value and the real-time battery voltage, and a first initial voltage regulation scheme for regulating charging voltage to the first voltage regulation value is generated; if the real-time battery voltage is greater than the first voltage threshold, it indicates that the current storage capacity of the storage battery is high, and at this time, a second small voltage regulation value needs to be calculated according to a second small proportional value and the real-time battery voltage, and a second initial voltage regulation scheme for regulating the charging voltage to the second voltage regulation value is generated.
In step 303 of the embodiment shown in fig. 3, the upper limit value of the charging voltage is determined according to the ideal service life of the battery, the magnitude of the stored amount of the battery after the first stage of charging is determined according to the second voltage threshold, and different second initial voltage regulation schemes are generated according to different determination results, so as to improve the charging efficiency or stability of the second stage. This is explained in detail with reference to the embodiment shown in fig. 5.
Referring to fig. 5, generating a second initial voltage regulation scheme based on the predicted battery voltage and the desired service life includes the steps of:
501, setting a regulating upper limit value according to the ideal service life.
502, judging whether the predicted battery voltage is larger than a preset second voltage threshold, if not, executing step 503; if yes, go to step 504.
And 503, generating a second initial voltage regulation scheme, wherein the second initial voltage regulation scheme is to regulate the charging voltage to the upper limit value of the regulated voltage until the real-time battery voltage exceeds a second voltage threshold value.
An equalization voltage value is set 504 based on the real-time battery voltage and the equalizing charge process.
And 505, generating a second initial voltage regulation scheme, wherein the second initial voltage regulation scheme is to regulate the charging voltage to an equilibrium voltage value.
The implementation principle of the embodiment is as follows:
after the predicted battery voltage is predicted through the voltage prediction model, the predicted storage capacity of the storage battery after the first-stage charging is judged according to a preset second voltage threshold, wherein the second voltage threshold can be represented as a demarcation point about to be fully charged; if the predicted battery voltage is higher than the second voltage threshold, the storage battery is about to be fully charged, an equalizing voltage value reaching an equalizing charge state when the battery voltage is predicted is set at the moment, and then the charging voltage is adjusted according to the equalizing voltage value, so that the charge state of the storage battery is kept in the equalizing charge state.
In step 105 of the embodiment shown in fig. 1, the voltage regulation values of the initial voltage regulation schemes in the embodiments shown in fig. 1 to 5 need to be adjusted in combination with some parameters of the charging pile, where the state information of the charging pile includes real-time temperature and duration of use, and the first initial voltage regulation scheme in the first stage may be adjusted according to the real-time temperature. This is explained in detail with reference to the embodiment shown in fig. 6.
Referring to fig. 6, adjusting all initial voltage regulation schemes and obtaining a final voltage regulation scheme of a plurality of stages includes the steps of:
601, judging whether the real-time temperature exceeds a preset temperature threshold value, if so, executing a step 602; if not, go to step 603.
And 602, reducing the first voltage regulating value or the second voltage regulating value in the first initial voltage regulating scheme to obtain a first final voltage regulating scheme in the first stage.
If the first initial voltage regulation scheme is a first voltage regulation value, reducing the first voltage regulation value according to a preset reduction proportion, and obtaining a first final voltage regulation scheme of a first stage, namely regulating the charging voltage to the reduced first voltage regulation value; if the first initial voltage regulation scheme is the second voltage regulation value, the second voltage regulation value is reduced according to a preset reduction proportion, and the obtained first final voltage regulation scheme at the first stage is to regulate the charging voltage to the reduced second voltage regulation value.
603, the first initial voltage regulation scheme is not adjusted, and the first initial voltage regulation scheme is used as the first final voltage regulation scheme.
And 604, adjusting the second initial voltage regulation scheme based on the continuous use time to obtain a second final voltage regulation scheme of the second stage.
The implementation principle of the embodiment is as follows:
partial parameters of the charging pile can influence the stability of the charging voltage output by the charging pile, wherein the charging pile comprises the real-time temperature of the charging pile, the charging pile is likely to have an overhigh temperature condition under the influence of the service time or the external environment, and the charging voltage output by the charging pile is unstable at the moment, so that the charging efficiency of the storage battery is influenced, and the charging pile or the storage battery can be damaged seriously. The first stage is in a rapid charging stage of the storage battery, so that if the real-time temperature is higher and exceeds a preset temperature threshold value, the voltage regulating value in the first initial voltage regulating scheme in the first stage needs to be reduced, the charging voltage is reduced to avoid the continuous temperature rise of the charging pile as much as possible, and the stability of the charging voltage is guaranteed; if the real-time temperature does not exceed the temperature threshold, the service environment of the charging pile at the moment is relatively good, and therefore the voltage regulating value in the first initial voltage regulating scheme does not need to be adjusted.
In step 604 of the embodiment shown in fig. 6, the second initial voltage regulation scheme in the second stage may be adjusted according to the duration of the charging pile. This is explained in detail with reference to the embodiment shown in fig. 7.
Referring to fig. 7, adjusting the second initial voltage regulation scheme based on the duration and obtaining the second final voltage regulation scheme includes the steps of:
701, judging whether the continuous service time exceeds a preset first time threshold, and if not, executing a step 702; if yes, go to step 703.
And 702, not adjusting the second initial voltage regulation scheme, and taking the second initial voltage regulation scheme as a second final voltage regulation scheme of the second stage.
703, judging whether the continuous service time exceeds a preset second time threshold, and if not, executing step 704; if yes, go to step 705.
And 704, reducing the upper limit value of the voltage regulation in the second initial voltage regulation scheme to obtain a second final voltage regulation scheme.
And the second final voltage regulation scheme is to regulate the charging voltage to the reduced upper limit value of the voltage regulation.
705, reducing the upper limit value or the equalizing voltage value of the voltage regulation in the second initial voltage regulation scheme to obtain a second final voltage regulation scheme.
If the second initial voltage regulation scheme is the voltage regulation upper limit value, reducing the voltage regulation upper limit value according to a preset reduction proportion, and obtaining a second final voltage regulation scheme, namely regulating the charging voltage to the reduced voltage regulation upper limit value; and if the second initial voltage regulation scheme is the equalizing voltage value, reducing the equalizing voltage value according to a preset reduction proportion, and obtaining a second final voltage regulation scheme by regulating the charging voltage to the reduced equalizing voltage value.
The implementation principle of the embodiment is as follows:
when the charging of the second stage is reached, the storage capacity of the storage battery is already in a higher state, so the charging process of the second stage needs to be more stable, and besides the voltage regulation scheme of the first stage is regulated through the real-time temperature of the charging pile, the voltage regulation scheme of the second stage needs to be regulated according to the continuous service time of the charging pile. If it is longer to fill electric pile duration of service time, there is harmful effects to filling electric pile hardware equipment, leads to charging voltage's output less stable easily, can divide into three gear according to the duration of service time that first time threshold value and second time threshold value that predetermine will fill electric pile.
The embodiment of the application also discloses a staged voltage regulating system for the charging pile, which comprises a memory, a processor and a program stored on the memory and capable of running on the processor, wherein the program can be loaded and executed by the processor to realize the staged voltage regulating method for the charging pile as shown in fig. 1-7.
The implementation principle of the embodiment is as follows:
through the calling of the program, the battery information of the storage battery in the equipment to be charged can be acquired through the charging gun, and a multi-stage initial voltage regulation scheme is generated according to the battery information of the storage battery. And meanwhile, the state information of the charging pile can be detected, because the real-time state of the charging pile can influence the stability of the output voltage, the initial voltage regulation scheme is required to be adjusted according to the state information of the charging pile, so that a multi-stage final voltage regulation scheme is obtained, the charging voltage is adjusted according to the final voltage regulation scheme, so that the charging voltage output by the charging pile is the charging voltage which is most suitable for the storage battery on the basis of ensuring the normal output of the charging pile, and therefore, the balanced charging state in the charging process can be easily realized, and the service life of the storage battery is prolonged.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. A staged voltage regulation method for a charging pile is characterized by comprising the following steps:
connecting a charging gun with equipment to be charged, and charging the equipment to be charged through the charging gun;
battery information of a storage battery in the equipment to be charged is obtained through the charging gun, wherein the battery information comprises a battery model, battery service time, battery historical fault information and real-time battery voltage;
detecting the state information of the charging pile to which the charging gun belongs;
inquiring the maximum service time of the storage battery according to the battery model;
predicting a budget life of the battery based on the battery usage time and the maximum usage time;
correcting the estimated service life based on the historical fault information of the battery to obtain the ideal service life of the storage battery;
generating an initial voltage regulation scheme for a plurality of stages by combining the ideal service life and the real-time battery voltage;
adjusting all initial voltage regulation schemes based on the state information to obtain final voltage regulation schemes of multiple stages;
and regulating the charging voltage of the charging pile when the charging pile charges the equipment to be charged according to the final voltage regulating scheme.
2. The method of claim 1, wherein the initial voltage regulation scheme combining the ideal service life and the real-time battery voltage generation stages comprises the following steps:
generating a first initial voltage regulating scheme of a first stage according to the real-time battery voltage;
predicting the predicted battery voltage of the real-time battery voltage after voltage regulation in the first initial voltage regulation scheme through a preset voltage prediction model;
generating a second initial voltage regulation scheme for a second phase based on the predicted battery voltage and the ideal service life.
3. The staged voltage regulation method for a charging pile according to claim 2, wherein the step of generating the first initial voltage regulation scheme of the first stage according to the real-time battery voltage comprises the following steps:
judging whether the real-time battery voltage is greater than a preset first voltage threshold value or not;
if the real-time battery voltage is not greater than the first voltage threshold, calculating a first voltage regulating value according to a preset first proportional value and the real-time battery voltage;
generating a first initial voltage regulation scheme, wherein the first initial voltage regulation scheme is used for regulating the charging voltage to the first voltage regulation value;
if the real-time battery voltage is larger than the first voltage threshold, calculating a second voltage regulating value according to a preset second proportional value and the real-time battery voltage, wherein the first proportional value is larger than the second proportional value;
and generating a first initial voltage regulation scheme, wherein the first initial voltage regulation scheme is used for regulating the charging voltage to the second voltage regulation value.
4. The method of claim 3, wherein the step of generating a second initial voltage regulation scheme for a second phase based on the predicted battery voltage and the desired service life comprises the steps of:
setting a regulating upper limit value according to the ideal service life;
judging whether the predicted battery voltage is larger than a preset second voltage threshold value or not;
if the predicted battery voltage is not greater than the second voltage threshold, generating a second initial voltage regulation scheme, wherein the second initial voltage regulation scheme is to regulate the charging voltage to the voltage regulation upper limit value until the real-time battery voltage exceeds the second voltage threshold;
if the predicted battery voltage is greater than the second voltage threshold, setting an equalizing voltage value based on the real-time battery voltage and an equalizing charging process;
and generating a second initial voltage regulation scheme, wherein the second initial voltage regulation scheme is used for regulating the charging voltage to the equalizing voltage value.
5. The staged voltage regulation method for a charging pile according to claim 4, wherein the status information includes real-time temperature and duration time, and the adjusting all initial voltage regulation schemes based on the status information to obtain a final voltage regulation scheme of multiple stages comprises the following steps:
judging whether the real-time temperature exceeds a preset temperature threshold value or not;
if the real-time temperature exceeds the temperature threshold, reducing a first voltage regulating value or a second voltage regulating value in the first initial voltage regulating scheme to obtain a first final voltage regulating scheme of the first stage;
if the real-time temperature does not exceed the temperature threshold, the first initial voltage regulation scheme is not adjusted, and the first initial voltage regulation scheme is used as the first final voltage regulation scheme;
and adjusting the second initial voltage regulation scheme based on the continuous service time to obtain a second final voltage regulation scheme of the second stage.
6. The staged voltage regulation method for a charging pile according to claim 5, wherein the step of adjusting the second initial voltage regulation scheme based on the continuous service time to obtain the second final voltage regulation scheme in the second stage comprises the following steps:
judging whether the continuous service time exceeds a preset first time threshold value or not;
if the continuous service time does not exceed the first time threshold, the second initial voltage regulation scheme is not adjusted, and the second initial voltage regulation scheme is used as a second final voltage regulation scheme of the second stage;
if the continuous service time exceeds the first time threshold, judging whether the continuous service time exceeds a preset second time threshold;
if the continuous service time does not exceed the second time threshold, reducing the upper limit value of the voltage regulation in the second initial voltage regulation scheme to obtain a second final voltage regulation scheme;
and if the continuous service time exceeds the second time threshold, reducing the voltage regulation upper limit value or the equilibrium voltage value in the second initial voltage regulation scheme to obtain the second final voltage regulation scheme.
7. A staged voltage regulation system for charging poles, comprising a memory, a processor and a program stored in the memory and executable on the processor, the program being capable of being loaded and executed by the processor to implement a staged voltage regulation method for charging poles as claimed in any one of claims 1 to 6.
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