CN110920459A - Distributed energy storage method, device, equipment and medium for electric automobile - Google Patents

Distributed energy storage method, device, equipment and medium for electric automobile Download PDF

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Publication number
CN110920459A
CN110920459A CN201911308115.6A CN201911308115A CN110920459A CN 110920459 A CN110920459 A CN 110920459A CN 201911308115 A CN201911308115 A CN 201911308115A CN 110920459 A CN110920459 A CN 110920459A
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China
Prior art keywords
charging
power
unit
electric automobile
time
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Inventor
汤平
卢煜东
熊刚
高辉辉
池圣松
林瑶
陈见超
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Fujian Nebula Electronics Co Ltd
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Fujian Nebula Electronics Co Ltd
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Priority to CN201911308115.6A priority Critical patent/CN110920459A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/63—Monitoring or controlling charging stations in response to network capacity
    • 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
    • B60L53/64—Optimising energy costs, e.g. responding to electricity rates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention provides a distributed energy storage method, a distributed energy storage device, distributed energy storage equipment and distributed energy storage media for an electric automobile, wherein the distributed energy storage method comprises the steps of receiving a parameter setting request initiated by a client, and setting energy storage parameters of an electric automobile unit according to the parameter setting request; receiving the rated maximum stored electric quantity and the current remaining electric quantity percentage transmitted by the charging and discharging unit, acquiring a charging power value set by the charging and discharging unit, and calculating charging time; acquiring local electricity utilization peak periods, judging power supply of a power grid according to the electricity utilization peak periods, checking idle electric automobile units when the power grid is in the electricity utilization peak periods, and issuing discharge control instructions to a charge and discharge unit; and charging and judging the electric vehicle unit according to the current residual electric quantity percentage, the energy storage parameter and the combination electricity price time period, and issuing a charging control instruction to the charging and discharging unit according to a judgment result. The invention can well relieve the power supply pressure of the power system in the peak of power utilization, so that the electric energy of the electric automobile is fully utilized.

Description

Distributed energy storage method, device, equipment and medium for electric automobile
Technical Field
The invention relates to the field of new energy automobiles, in particular to a distributed energy storage method, a distributed energy storage device, distributed energy storage equipment and distributed energy storage media for electric automobiles.
Background
With the increasing awareness of environmental protection and resource protection, new energy electric vehicles are gradually replacing fuel vehicles in order to control the waste of non-renewable resources and improve the quality of living environments. With the rapid development of science and technology, the electric quantity capable of being stored by the new energy automobile is continuously improved, so that the existing new energy automobile is no longer a simple vehicle, and the new energy automobile is used as a mobile energy storage device when needed, which becomes a trend.
With the development of society, the use of electric power is more and more extensive, but because the demand of electric power is different in different periods, the problem that sometimes the power supply is insufficient, but sometimes the power supply is excessive can appear. In order to guarantee domestic electricity and industrial electricity, the electricity quantity higher than the peak of electricity needs to be provided for guarantee, so that a very large electricity supply quantity needs to be provided; when the power consumption is in the valley, a very large part of the power is consumed. Therefore, if the idle electric energy of the new energy automobile can be fed back to the power grid for redistribution, the problem of power supply shortage of the power grid can be improved.
Through retrieval, there are technical solutions for discharging an electric vehicle in the prior art, for example, chinese patent application No. 201711268642.X, which is filed as 2017.12.05, discloses a method and an apparatus for controlling electric vehicle discharge, and a vehicle controller; the control method comprises the steps of detecting whether the connection state of a load and an electric vehicle meets a discharging condition in advance; acquiring a discharge instruction under the condition that a discharge condition is met; and then, by detecting the power of the load, calculating a discharge parameter according to the power of the load, and sending the discharge parameter to the power battery pack, so that the actual discharge parameter is adjusted, and the power of the power battery pack is transmitted to the load according to the discharge parameter. The discharge parameters are set according to the actual electric energy condition of the load, so that the power transmission can be carried out on the loads with various parameters, and the power transmission can be carried out on other electric vehicles. However, this control method can only achieve power transmission to different loads, and cannot achieve discharge power supply to the grid, and therefore, the electric energy of the electric vehicle cannot be sufficiently and effectively used.
Disclosure of Invention
The invention aims to provide a distributed energy storage method, a distributed energy storage device, distributed energy storage equipment and a distributed energy storage medium for an electric automobile, so that electric energy of the electric automobile can be fed back to a power grid, and the electric energy of the electric automobile can be fully and effectively utilized.
In a first aspect, the invention provides a distributed energy storage method for an electric vehicle, which is used at a server side, and the method includes:
receiving a parameter setting request initiated by a client, and setting energy storage parameters of an electric vehicle unit according to the parameter setting request;
receiving rated maximum stored electric quantity acquired and transmitted by the charging and discharging unit from the electric automobile unit and current remaining electric quantity percentage acquired and transmitted in real time; acquiring a charging power value set by a charging and discharging unit; calculating the charging time by using the rated maximum stored electric quantity, the current remaining electric quantity percentage and the charging power value;
the method comprises the steps of obtaining local electricity utilization peak periods, judging power supply of a power grid according to the electricity utilization peak periods, checking idle electric automobile units when the power grid is in the electricity utilization peak periods, and issuing discharge control instructions to a charge and discharge unit so that the charge and discharge unit can control the idle electric automobile units to supply power to the power grid according to the discharge control instructions;
and charging and judging the electric automobile units according to the current residual electric quantity percentage, the energy storage parameters and the combination electricity price time period, and issuing a charging control instruction to the charging and discharging unit according to a judgment result so that the charging and discharging unit controls the power grid to charge the electric automobile units needing to be charged according to the charging control instruction.
Further, the method further comprises:
receiving a charging and selling setting request initiated by a client, and setting a charging and selling scheme according to the charging and selling setting request, wherein the setting specifically comprises setting a lowest discharging unit price expected by a user and a highest charging unit price expected by the user;
monitoring local electricity selling unit prices in real time, and controlling an idle electric automobile unit to discharge and sell electricity to a power grid when the electricity selling unit prices are larger than or equal to the set lowest discharge unit price expected by a user; otherwise, the idle electric automobile unit is not controlled to discharge and sell electricity to the power grid;
monitoring local charging unit price in real time, and controlling a power grid to charge the electric vehicle unit needing to be charged when the charging unit price is less than or equal to the set highest charging unit price expected by a user; otherwise, the power grid is not controlled to charge the electric automobile unit needing to be charged.
Further, the energy storage parameter at least comprises the idle time of the electric vehicle unit;
when the power grid is in the peak period of power utilization, the electric automobile unit for checking the idleness specifically comprises the following steps:
when the power grid is in a power utilization peak period and in a power price peak period, judging whether the sum of the time of a power price level period and the time of a power price valley period before the end of the idle time is greater than the calculated charging time, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and is in a power price level section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and in a power price valley section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, the electric automobile unit is not in an idle state.
Further, the energy storage parameter also comprises the percentage of the lowest residual electric quantity after discharging;
in the process that the electric automobile unit supplies power to the power grid, whether the current remaining power percentage is smaller than the lowest remaining power percentage after discharging is judged in real time, and if yes, the electric automobile unit is controlled to stop supplying power to the power grid; and if not, not controlling the electric automobile unit to stop supplying power to the power grid.
Further, the energy storage parameter also comprises the percentage of the idle ending required electric quantity;
the specific steps of judging the charging of the electric vehicle unit according to the current percentage of the remaining electric quantity, the energy storage parameters and the time period of combining the electricity price and issuing a charging control instruction to the charging and discharging unit according to the judgment result are as follows:
when the percentage of the current remaining power is smaller than the percentage of the idle ending required power, the charging judgment is carried out on the electric automobile unit in combination with the electricity price time period, and the specific judgment is as follows:
when the power grid is in a power utilization peak period and is in a power price level section or a power price valley section, judging whether the time of the power price valley section before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the electricity utilization peak period and is in the electricity price peak period, judging whether the sum of the time of the electricity price level period and the time of the electricity price valley period before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the electricity price level section, judging whether the time of the electricity price valley section before the end of the idle time is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the valley period of power price, a charging control instruction is issued to the charging and discharging unit;
and when the percentage of the current remaining electric quantity is larger than or equal to the percentage of the idle ending required electric quantity, the electric automobile unit is not subjected to charging judgment.
In a second aspect, the invention provides a distributed energy storage device for an electric vehicle, wherein the device is a server and comprises a parameter setting module, a charging time calculation module, a first discharging control module and a first charging control module;
the parameter setting module is used for receiving a parameter setting request initiated by a client and setting energy storage parameters of the electric automobile unit according to the parameter setting request;
the charging time calculation module is used for receiving the rated maximum stored electric quantity acquired and transmitted by the charging and discharging unit from the electric automobile unit and the current remaining electric quantity percentage acquired and transmitted in real time; acquiring a charging power value set by a charging and discharging unit; calculating the charging time by using the rated maximum stored electric quantity, the current remaining electric quantity percentage and the charging power value;
the first discharge control module is used for acquiring local electricity utilization peak periods, judging power supply of the power grid according to the electricity utilization peak periods, checking idle electric automobile units when the power grid is in the electricity utilization peak periods, and issuing discharge control instructions to the charge and discharge units so that the charge and discharge units control the idle electric automobile units to supply power to the power grid according to the discharge control instructions;
and the charging control module is used for judging the charging of the electric automobile unit according to the current residual electric quantity percentage, the energy storage parameter and the combination electricity price time period, and issuing a charging control instruction to the charging and discharging unit according to a judgment result so that the charging and discharging unit can control the power grid to charge the electric automobile unit needing to be charged according to the charging control instruction.
Further, the device also comprises a scheme setting module, a second discharging control module and a second charging control module;
the scheme setting module is used for receiving a charging and selling setting request initiated by a client and setting a charging and selling scheme according to the charging and selling setting request, and specifically comprises the steps of setting the lowest discharging unit price expected by a user and the highest charging unit price expected by the user;
the second discharge control module is used for monitoring the local electricity selling unit price in real time, and when the electricity selling unit price is larger than or equal to the set lowest expected discharge unit price of a user, the second discharge control module controls the idle electric automobile unit to discharge and sell electricity to the power grid; otherwise, the idle electric automobile unit is not controlled to discharge and sell electricity to the power grid;
the second charging control module is used for monitoring the local charging unit price in real time, and when the charging unit price is less than or equal to the set highest charging unit price expected by a user, the second charging control module controls the power grid to charge the electric vehicle unit needing to be charged; otherwise, the power grid is not controlled to charge the electric automobile unit needing to be charged.
Further, the energy storage parameters at least comprise the idle time of the electric automobile unit and the percentage of the electric quantity required by the idle ending;
when the power grid is in the peak period of power utilization, the electric automobile unit for checking the idleness specifically comprises the following steps:
when the power grid is in a power utilization peak period and in a power price peak period, judging whether the sum of the time of a power price level period and the time of a power price valley period before the end of the idle time is greater than the calculated charging time, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and is in a power price level section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and in a power price valley section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
the specific steps of judging the charging of the electric vehicle unit according to the current percentage of the remaining electric quantity, the energy storage parameters and the time period of combining the electricity price and issuing a charging control instruction to the charging and discharging unit according to the judgment result are as follows:
when the percentage of the current remaining power is smaller than the percentage of the idle ending required power, the charging judgment is carried out on the electric automobile unit in combination with the electricity price time period, and the specific judgment is as follows:
when the power grid is in a power utilization peak period and is in a power price level section or a power price valley section, judging whether the time of the power price valley section before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the electricity utilization peak period and is in the electricity price peak period, judging whether the sum of the time of the electricity price level period and the time of the electricity price valley period before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the electricity price level section, judging whether the time of the electricity price valley section before the end of the idle time is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the valley period of power price, a charging control instruction is issued to the charging and discharging unit;
and when the percentage of the current remaining electric quantity is larger than or equal to the percentage of the idle ending required electric quantity, the electric automobile unit is not subjected to charging judgment.
In a third aspect, the present invention provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of the first aspect when executing the program.
In a fourth aspect, the invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the method of the first aspect.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
1. during the power utilization peak period, the distributed energy storage equipment formed by each electric automobile can be utilized to feed redundant electric quantity back to the power grid for redistribution (namely, power supply is carried out on the power grid), so that the power supply pressure of the power system during the power utilization peak period can be well relieved, the waste of the redundant electric quantity is reduced, and the electric energy of the electric automobile is fully and effectively utilized;
2. when the electricity price is in the electricity price level section or the electricity price valley section, the power grid can be controlled to charge and store energy for each electric automobile according to the requirement, so that the waste of the loss of the redundant electric quantity during the electricity utilization valley can be reduced;
3. the charging and selling scheme can be manually set by the car owners through the client, so that each car owner can conveniently obtain more objective benefits by using the price difference between charging and selling;
4. the variety of distributed energy storage is widened.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic block diagram of the system of the present invention;
FIG. 2 is a flow chart of a method according to one embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an apparatus according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a third embodiment of the invention;
fig. 5 is a schematic structural diagram of a medium according to a fourth embodiment of the present invention.
Detailed Description
The embodiment of the application provides a distributed energy storage method, a distributed energy storage device, equipment and a distributed energy storage medium for an electric automobile, and solves the problem that in the prior art, discharge power supply to a power grid cannot be realized, so that electric energy of the electric automobile cannot be fully and effectively utilized; the electric energy of the electric automobile is fed back to the power grid, so that the electric energy of the electric automobile is fully and effectively utilized.
The technical scheme in the embodiment of the application has the following general idea: the method comprises the steps that an owner sets energy storage parameters (including idle time of an electric automobile unit, percentage of required electric quantity after idle ending and percentage of remaining lowest electric quantity after discharging) through a client, and the energy storage parameters are transmitted to a server; the server side calculates charging time by using the obtained rated maximum stored electric quantity, the current remaining electric quantity percentage and the charging power value; and the server side performs charging and discharging judgment according to the charging time, the energy storage parameters and the power grid electricity price time period, and issues a control instruction according to a judgment result to control the electric automobile unit to perform charging and discharging.
Before describing the specific embodiment, a system framework corresponding to the method of the embodiment of the present application is described, and as shown in fig. 1, the system is roughly divided into six parts: the system comprises an electric automobile unit, a charging and discharging unit, a communication unit, a client, a server and a power grid; the electric vehicle unit is an electric vehicle with a charging and discharging function, and when the electric vehicle unit is specifically implemented, a plurality of electric vehicle units can jointly form distributed energy storage equipment; the charging and discharging unit is a charging pile with a charging and discharging function, and charging and discharging regulation and control of the electric automobile unit can be realized through the charging and discharging unit in specific implementation; the server is used for regulating and distributing electric quantity, controlling the charging and discharging units to charge and discharge, and realizing the functions of peak clipping and valley filling of power supply and the like; the communication unit is used for realizing communication between the server end and each charging and discharging unit; the power grid refers to a power grid constructed by a power company; the client is used for performing charging and discharging function operation, renting mode use operation and the like by a user, and can be a mobile phone APP, computer software and the like;
when the system is specifically deployed, the charging pile (namely a charging and discharging unit) with the charging and discharging function can be deployed at places where vehicles such as residential districts and companies need to be parked for a long time, and the charging and discharging unit is connected to a charging and discharging interface of a power grid; the charging and discharging unit is connected to the server end through the communication unit, and a database of the charging and discharging unit is built on the server end, so that the server end can control the charging and discharging unit to charge and discharge according to actual requirements; the owner of the electric vehicle accesses the idle electric vehicle with the charging and discharging function to the charging and discharging unit, namely, the electric vehicle is rented to a power company to be used as the electric vehicle unit.
Example one
The embodiment provides a distributed energy storage method for an electric vehicle, as shown in fig. 2, where the method is used at a server side, and the method includes:
receiving a parameter setting request initiated by a client, and setting energy storage parameters of an electric vehicle unit according to the parameter setting request; when the method is specifically implemented, owners of all electric vehicles need to apply for APP accounts through clients, and then can log in the APP through the APP accounts to perform specific parameter setting, for example, the idle time T of electric vehicle units can be setidleAnd the percentage of the electric quantity required by the idle ending SOCdemandAnd the like.
Receiving the rated maximum stored electric quantity Q acquired and transmitted by the charging and discharging unit from the electric automobile unitMAXAnd acquiring and transmitting the current remaining capacity percentage SOC in real timecurrent(ii) a Acquiring a charging power value set by a charging and discharging unit; calculating the charging time T by using the rated maximum stored electric quantity, the current remaining electric quantity percentage and the charging power valueCharging device(ii) a In the specific implementation, the rated maximum storage capacity Q is set for each battery of the electric automobileMAXAnd therefore, the first and second electrodes are,the rated maximum stored electricity Q can be obtained from the electric vehicle unit (specifically, BMS of the electric vehicle unit) through the charge and discharge unitMAXAnd the obtained rated maximum stored electric quantity QMAXTransmitting to a server end; current percentage of remaining charge SOCcurrentThe charging and discharging unit can be obtained from the electric automobile unit in real time and transmitted to the server end; the charging power value of the charging and discharging unit can be set according to actual needs; charging time TCharging deviceThe specific calculation formula of (A) is as follows: t isCharging device＝QMAX*(1-SOCcurrent) Charging electric power.
The method comprises the steps that local electricity utilization peak time periods are obtained, and in specific implementation, the local electricity utilization peak time periods can be preset and stored in a server side, so that when the server side needs to be used, the server side can directly obtain the electricity utilization peak time periods from a storage position, power supply judgment is carried out on a power grid according to the electricity utilization peak time periods, idle electric automobile units are checked when the power grid is in the electricity utilization peak time periods, and a discharge control instruction is issued to a charge and discharge unit so that the charge and discharge unit can control the idle electric automobile units to supply power to the power grid according to the discharge control instruction;
and charging and judging the electric automobile units according to the current residual electric quantity percentage, the energy storage parameters and the combination electricity price time period, and issuing a charging control instruction to the charging and discharging unit according to a judgment result so that the charging and discharging unit controls the power grid to charge the electric automobile units needing to be charged according to the charging control instruction.
In this embodiment, the method further includes:
receiving a charging and selling setting request initiated by a client, and setting a charging and selling scheme according to the charging and selling setting request, wherein the setting specifically comprises setting the lowest discharging unit price N (yuan/kilowatt-hour) expected by a user and the highest charging unit price M (yuan/kilowatt-hour) expected by the user; in specific implementation, the charging and selling scheme can be manually set by the vehicle owners through the client, so that each vehicle owner can conveniently obtain more objective income by using the price difference between charging and selling;
monitoring local electricity selling unit price X1 (yuan/kilowatt hour) in real time, and controlling an idle electric automobile unit to discharge and sell electricity to a power grid when the electricity selling unit price is larger than or equal to the set lowest discharge unit price expected by a user (namely X1 is larger than or equal to N); otherwise, the idle electric automobile unit is not controlled to discharge and sell electricity to the power grid;
monitoring local charging unit price X2 in real time, and controlling the power grid to charge the electric vehicle unit needing to be charged when the charging unit price is less than or equal to the set highest charging unit price expected by the user (namely X2 is less than or equal to M); otherwise, the power grid is not controlled to charge the electric automobile unit needing to be charged.
In this embodiment, the energy storage parameter at least includes an idle time T of the electric vehicle unitidle；
When the power grid is in the peak period of power utilization, the electric automobile unit for checking the idleness specifically comprises the following steps:
when the power grid is in the peak period of power utilization and in the peak period of power price, the idle time T is judgedidleWhether the sum of the time of the electricity price level section and the electricity price valley section before the end is greater than the calculated charging time TCharging deviceIf so, determining that the electric vehicle unit is in an idle state (namely the electric vehicle unit can discharge to the power grid); if not, determining that the electric automobile unit is not in an idle state (namely the electric automobile unit cannot discharge to the power grid);
when the power grid is in the peak period of power utilization and in the power price section, judging the idle time TidleWhether or not the time of the electricity price valley period before the end is greater than the calculated charging time TCharging deviceIf so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in the peak period of power utilization and in the valley period of power price, judging the idle time TidleWhether or not the time of the electricity price valley period before the end is greater than the calculated charging time TCharging deviceIf so, judging that the electric automobile unit is in an idle state; if not, the electric automobile unit is not in an idle state.
In this embodiment, the energy storage parameter is furtherIncluding the percentage of the lowest amount of charge remaining after discharge SOCMIN；
In the process of supplying power to a power grid by an electric automobile unit, judging the current remaining power percentage SOC in real timecurrentWhether the SOC is less than the lowest residual electric quantity percentage SOC after dischargeMINIf so, controlling the electric automobile unit to stop supplying power to the power grid so as to ensure that the electric automobile unit does not have an over-discharge condition; and if not, not controlling the electric automobile unit to stop supplying power to the power grid.
In this embodiment, the energy storage parameter further includes an idle end demand power percentage SOCdemand；
The specific steps of judging the charging of the electric vehicle unit according to the current percentage of the remaining electric quantity, the energy storage parameters and the time period of combining the electricity price and issuing a charging control instruction to the charging and discharging unit according to the judgment result are as follows:
when the current remaining capacity percentage SOCcurrentSOC less than idle end demand power percentagedemandAnd then, the charging judgment is carried out on the electric automobile unit in combination with the electricity price time period, and the specific judgment is as follows:
when the power grid is in the peak period of power utilization and in the flat period or the valley period of power price, the idle time T is judgedidleWhether or not the time of the electricity price valley period before the end is equal to or less than the calculated charging time TCharging deviceIf yes, a charging control instruction is issued to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the peak period of power price, the idle time T is judgedidleWhether or not the sum of the time of the electricity rate level section and the electricity rate valley section before the end is equal to or less than the calculated charging time TCharging deviceIf yes, a charging control instruction is issued to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the power price section, the idle time T is judgedidleWhether or not the time of the electricity price valley period before the end is equal to or less than the calculated charging time TCharging deviceIf yes, a charging control instruction is issued to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the valley period of power price, a charging control instruction is issued to the charging and discharging unit;
when the current remaining capacity percentage SOCcurrentSOC greater than or equal to percentage of electric quantity required for idle endingdemandAnd if so, not judging the charging of the electric automobile unit.
Based on the same inventive concept, the application also provides a device corresponding to the method in the first embodiment, which is detailed in the second embodiment.
Example two
In the embodiment, a distributed energy storage device for an electric vehicle is provided, as shown in fig. 3, the device is a server; the device comprises a parameter setting module, a charging time calculation module, a first discharging control module and a first charging control module;
the parameter setting module is used for receiving a parameter setting request initiated by a client and setting energy storage parameters of the electric automobile unit according to the parameter setting request; when the method is specifically implemented, owners of all electric vehicles need to apply for APP accounts through clients, and then can log in the APP through the APP accounts to perform specific parameter setting, for example, the idle time T of electric vehicle units can be setidleAnd the percentage of the electric quantity required by the idle ending SOCdemandAnd the like.
The charging time calculation module is used for receiving the rated maximum stored electric quantity Q acquired and transmitted by the charging and discharging unit from the electric automobile unitMAXAnd acquiring and transmitting the current remaining capacity percentage SOC in real timecurrent(ii) a Acquiring a charging power value set by a charging and discharging unit; calculating the charging time T by using the rated maximum stored electric quantity, the current remaining electric quantity percentage and the charging power valueCharging device(ii) a In the specific implementation, the rated maximum storage capacity Q is set for each battery of the electric automobileMAXThus, it is possible to operate from an electric vehicle unit (in particular an electric vehicle unit) by means of a charging and discharging unitBMS) of the battery is acquiredMAXAnd the obtained rated maximum stored electric quantity QMAXTransmitting to a server end; current percentage of remaining charge SOCcurrentThe charging and discharging unit can be obtained from the electric automobile unit in real time and transmitted to the server end; the charging power value of the charging and discharging unit can be set according to actual needs; charging time TCharging deviceThe specific calculation formula of (A) is as follows: t isCharging device＝QMAX*(1-SOCcurrent) Charging electric power.
The first discharge control module is used for acquiring local electricity utilization peak periods, and in specific implementation, the local electricity utilization peak periods can be preset and stored in the server side, so that when the power grid is required to be used, the server side can directly acquire the electricity utilization peak periods from a storage position, power supply judgment is carried out on the power grid according to the electricity utilization peak periods, idle electric automobile units are checked when the power grid is in the electricity utilization peak periods, and discharge control instructions are issued to the charge and discharge units so that the charge and discharge units control the idle electric automobile units to supply power to the power grid according to the discharge control instructions;
the first charging control module is used for judging charging of the electric automobile unit according to the current residual electric quantity percentage, the energy storage parameter and the combination electricity price time period, and issuing a charging control instruction to the charging and discharging unit according to a judgment result so that the charging and discharging unit can control the power grid to charge the electric automobile unit needing charging according to the charging control instruction.
In this embodiment, the apparatus further includes a scheme setting module, a second discharging control module, and a second charging control module;
the scheme setting module is used for receiving a charging and selling setting request initiated by a client and setting a charging and selling scheme according to the charging and selling setting request, and specifically comprises the steps of setting the lowest discharging unit price N (yuan/kilowatt-hour) expected by a user and the highest charging unit price M (yuan/kilowatt-hour) expected by the user; in specific implementation, the charging and selling scheme can be manually set by the vehicle owners through the client, so that each vehicle owner can conveniently obtain more objective income by using the price difference between charging and selling;
the second discharge control module is used for monitoring the local electricity selling unit price X1 (yuan/kilowatt hour) in real time, and when the electricity selling unit price is larger than or equal to the set lowest discharge unit price expected by a user (namely X1 is larger than or equal to N), controlling the idle electric automobile unit to discharge and sell electricity to the power grid; otherwise, the idle electric automobile unit is not controlled to discharge and sell electricity to the power grid;
the second charging control module is used for monitoring the local charging unit price X2 in real time, and when the charging unit price is less than or equal to the set highest charging unit price expected by a user (namely X2 is less than or equal to M), the power grid is controlled to charge the electric automobile unit needing to be charged; otherwise, the power grid is not controlled to charge the electric automobile unit needing to be charged.
In this embodiment, the energy storage parameter at least includes an idle time T of the electric vehicle unitidle；
When the power grid is in the peak period of power utilization, the electric automobile unit for checking the idleness specifically comprises the following steps:
when the power grid is in the peak period of power utilization and in the peak period of power price, the idle time T is judgedidleWhether the sum of the time of the electricity price level section and the electricity price valley section before the end is greater than the calculated charging time TCharging deviceIf so, determining that the electric vehicle unit is in an idle state (namely the electric vehicle unit can discharge to the power grid); if not, determining that the electric automobile unit is not in an idle state (namely the electric automobile unit cannot discharge to the power grid);
when the power grid is in the peak period of power utilization and in the power price section, judging the idle time TidleWhether or not the time of the electricity price valley period before the end is greater than the calculated charging time TCharging deviceIf so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in the peak period of power utilization and in the valley period of power price, judging the idle time TidleWhether or not the time of the electricity price valley period before the end is greater than the calculated charging time TCharging deviceAnd if so, the mobile phone can be used for,judging that the electric automobile unit is in an idle state; if not, the electric automobile unit is not in an idle state.
In this embodiment, the energy storage parameter further includes a percentage SOC of a minimum amount of electricity remaining after dischargingMIN；
In the process of supplying power to a power grid by an electric automobile unit, judging the current remaining power percentage SOC in real timecurrentWhether the SOC is less than the lowest residual electric quantity percentage SOC after dischargeMINIf so, controlling the electric automobile unit to stop supplying power to the power grid so as to ensure that the electric automobile unit does not have an over-discharge condition; and if not, not controlling the electric automobile unit to stop supplying power to the power grid.
In this embodiment, the energy storage parameter further includes an idle end demand power percentage SOCdemand；
The specific steps of judging the charging of the electric vehicle unit according to the current percentage of the remaining electric quantity, the energy storage parameters and the time period of combining the electricity price and issuing a charging control instruction to the charging and discharging unit according to the judgment result are as follows:
when the current remaining capacity percentage SOCcurrentSOC less than idle end demand power percentagedemandAnd then, the charging judgment is carried out on the electric automobile unit in combination with the electricity price time period, and the specific judgment is as follows:
when the power grid is in the peak period of power utilization and in the flat period or the valley period of power price, the idle time T is judgedidleWhether or not the time of the electricity price valley period before the end is equal to or less than the calculated charging time TCharging deviceIf yes, a charging control instruction is issued to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the peak period of power price, the idle time T is judgedidleWhether or not the sum of the time of the electricity rate level section and the electricity rate valley section before the end is equal to or less than the calculated charging time TCharging deviceIf yes, a charging control instruction is issued to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the power price section, the idle time T is judgedidleWhether or not the time of the electricity price valley period before the end is equal to or less than the calculated charging time TCharging deviceIf yes, a charging control instruction is issued to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the valley period of power price, a charging control instruction is issued to the charging and discharging unit;
when the current remaining capacity percentage SOCcurrentSOC greater than or equal to percentage of electric quantity required for idle endingdemandAnd if so, not judging the charging of the electric automobile unit.
Since the apparatus described in the second embodiment of the present invention is an apparatus used for implementing the method of the first embodiment of the present invention, based on the method described in the first embodiment of the present invention, a person skilled in the art can understand the specific structure and the deformation of the apparatus, and thus the details are not described herein. All the devices adopted in the method of the first embodiment of the present invention belong to the protection scope of the present invention.
Based on the same inventive concept, the application provides an electronic device embodiment corresponding to the first embodiment, which is detailed in the third embodiment.
EXAMPLE III
The embodiment provides an electronic device, as shown in fig. 4, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, any one of the first embodiment modes may be implemented.
Since the electronic device described in this embodiment is a device used for implementing the method in the first embodiment of the present application, based on the method described in the first embodiment of the present application, a specific implementation of the electronic device in this embodiment and various variations thereof can be understood by those skilled in the art, and therefore, how to implement the method in the first embodiment of the present application by the electronic device is not described in detail herein. The equipment used by those skilled in the art to implement the methods in the embodiments of the present application is within the scope of the present application.
Based on the same inventive concept, the application provides a storage medium corresponding to the fourth embodiment, which is described in detail in the fourth embodiment.
Example four
The present embodiment provides a computer-readable storage medium, as shown in fig. 5, on which a computer program is stored, and when the computer program is executed by a processor, any one of the embodiments can be implemented.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In summary, the technical solution provided in the embodiment of the present application at least has the following technical effects or advantages:
1. during the power utilization peak period, the distributed energy storage equipment formed by each electric automobile can be utilized to feed redundant electric quantity back to the power grid for redistribution (namely, power supply is carried out on the power grid), so that the power supply pressure of the power system during the power utilization peak period can be well relieved, the waste of the redundant electric quantity is reduced, and the electric energy of the electric automobile is fully and effectively utilized;
2. when the electricity price is in the electricity price level section or the electricity price valley section, the power grid can be controlled to charge and store energy for each electric automobile according to the requirement, so that the waste of the loss of the redundant electric quantity during the electricity utilization valley can be reduced;
3. the charging and selling scheme can be manually set by the car owners through the client, so that each car owner can conveniently obtain more objective benefits by using the price difference between charging and selling;
4. the variety of distributed energy storage is widened.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.

Claims (10)

1. A distributed energy storage method for an electric automobile is characterized by comprising the following steps: for a server side, the method comprises the following steps:
receiving a parameter setting request initiated by a client, and setting energy storage parameters of an electric vehicle unit according to the parameter setting request;
receiving rated maximum stored electric quantity acquired and transmitted by the charging and discharging unit from the electric automobile unit and current remaining electric quantity percentage acquired and transmitted in real time; acquiring a charging power value set by a charging and discharging unit; calculating the charging time by using the rated maximum stored electric quantity, the current remaining electric quantity percentage and the charging power value;
the method comprises the steps of obtaining local electricity utilization peak periods, judging power supply of a power grid according to the electricity utilization peak periods, checking idle electric automobile units when the power grid is in the electricity utilization peak periods, and issuing discharge control instructions to a charge and discharge unit so that the charge and discharge unit can control the idle electric automobile units to supply power to the power grid according to the discharge control instructions;
and charging and judging the electric automobile units according to the current residual electric quantity percentage, the energy storage parameters and the combination electricity price time period, and issuing a charging control instruction to the charging and discharging unit according to a judgment result so that the charging and discharging unit controls the power grid to charge the electric automobile units needing to be charged according to the charging control instruction.
2. The distributed energy storage method of the electric automobile according to claim 1, characterized in that: the method further comprises the following steps:
receiving a charging and selling setting request initiated by a client, and setting a charging and selling scheme according to the charging and selling setting request, wherein the setting specifically comprises setting a lowest discharging unit price expected by a user and a highest charging unit price expected by the user;
monitoring local electricity selling unit prices in real time, and controlling an idle electric automobile unit to discharge and sell electricity to a power grid when the electricity selling unit prices are larger than or equal to the set lowest discharge unit price expected by a user; otherwise, the idle electric automobile unit is not controlled to discharge and sell electricity to the power grid;
monitoring local charging unit price in real time, and controlling a power grid to charge the electric vehicle unit needing to be charged when the charging unit price is less than or equal to the set highest charging unit price expected by a user; otherwise, the power grid is not controlled to charge the electric automobile unit needing to be charged.
3. The distributed energy storage method of the electric automobile according to claim 1, characterized in that: the energy storage parameters at least comprise the idle time of the electric automobile unit;
when the power grid is in the peak period of power utilization, the electric automobile unit for checking the idleness specifically comprises the following steps:
when the power grid is in a power utilization peak period and in a power price peak period, judging whether the sum of the time of a power price level period and the time of a power price valley period before the end of the idle time is greater than the calculated charging time, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and is in a power price level section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and in a power price valley section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, the electric automobile unit is not in an idle state.
4. The distributed energy storage method of the electric automobile according to claim 1, characterized in that: the energy storage parameters also comprise the percentage of the lowest residual electric quantity after discharging;
in the process that the electric automobile unit supplies power to the power grid, whether the current remaining power percentage is smaller than the lowest remaining power percentage after discharging is judged in real time, and if yes, the electric automobile unit is controlled to stop supplying power to the power grid; and if not, not controlling the electric automobile unit to stop supplying power to the power grid.
5. The distributed energy storage method of the electric automobile according to claim 1, characterized in that: the energy storage parameter also comprises the percentage of the idle ending required electric quantity;
the specific steps of judging the charging of the electric vehicle unit according to the current percentage of the remaining electric quantity, the energy storage parameters and the time period of combining the electricity price and issuing a charging control instruction to the charging and discharging unit according to the judgment result are as follows:
when the percentage of the current remaining power is smaller than the percentage of the idle ending required power, the charging judgment is carried out on the electric automobile unit in combination with the electricity price time period, and the specific judgment is as follows:
when the power grid is in a power utilization peak period and is in a power price level section or a power price valley section, judging whether the time of the power price valley section before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the electricity utilization peak period and is in the electricity price peak period, judging whether the sum of the time of the electricity price level period and the time of the electricity price valley period before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the electricity price level section, judging whether the time of the electricity price valley section before the end of the idle time is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the valley period of power price, a charging control instruction is issued to the charging and discharging unit;
and when the percentage of the current remaining electric quantity is larger than or equal to the percentage of the idle ending required electric quantity, the electric automobile unit is not subjected to charging judgment.
6. The utility model provides an electric automobile distributed energy storage device which characterized in that: the device is a server and comprises a parameter setting module, a charging time calculation module, a first discharging control module and a first charging control module;
the parameter setting module is used for receiving a parameter setting request initiated by a client and setting energy storage parameters of the electric automobile unit according to the parameter setting request;
the charging time calculation module is used for receiving the rated maximum stored electric quantity acquired and transmitted by the charging and discharging unit from the electric automobile unit and the current remaining electric quantity percentage acquired and transmitted in real time; acquiring a charging power value set by a charging and discharging unit; calculating the charging time by using the rated maximum stored electric quantity, the current remaining electric quantity percentage and the charging power value;
the first discharge control module is used for acquiring local electricity utilization peak periods, judging power supply of the power grid according to the electricity utilization peak periods, checking idle electric automobile units when the power grid is in the electricity utilization peak periods, and issuing discharge control instructions to the charge and discharge units so that the charge and discharge units control the idle electric automobile units to supply power to the power grid according to the discharge control instructions;
and the charging control module is used for judging the charging of the electric automobile unit according to the current residual electric quantity percentage, the energy storage parameter and the combination electricity price time period, and issuing a charging control instruction to the charging and discharging unit according to a judgment result so that the charging and discharging unit can control the power grid to charge the electric automobile unit needing to be charged according to the charging control instruction.
7. The distributed energy storage device of the electric automobile according to claim 6, characterized in that: the device also comprises a scheme setting module, a second discharging control module and a second charging control module;
the scheme setting module is used for receiving a charging and selling setting request initiated by a client and setting a charging and selling scheme according to the charging and selling setting request, and specifically comprises the steps of setting the lowest discharging unit price expected by a user and the highest charging unit price expected by the user;
the second discharge control module is used for monitoring the local electricity selling unit price in real time, and when the electricity selling unit price is larger than or equal to the set lowest expected discharge unit price of a user, the second discharge control module controls the idle electric automobile unit to discharge and sell electricity to the power grid; otherwise, the idle electric automobile unit is not controlled to discharge and sell electricity to the power grid;
the second charging control module is used for monitoring the local charging unit price in real time, and when the charging unit price is less than or equal to the set highest charging unit price expected by a user, the second charging control module controls the power grid to charge the electric vehicle unit needing to be charged; otherwise, the power grid is not controlled to charge the electric automobile unit needing to be charged.
8. The distributed energy storage device of the electric automobile according to claim 6, characterized in that: the energy storage parameters at least comprise the idle time of the electric automobile unit and the percentage of the electric quantity required by the idle ending;
when the power grid is in the peak period of power utilization, the electric automobile unit for checking the idleness specifically comprises the following steps:
when the power grid is in a power utilization peak period and in a power price peak period, judging whether the sum of the time of a power price level period and the time of a power price valley period before the end of the idle time is greater than the calculated charging time, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and is in a power price level section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
when the power grid is in a power utilization peak period and in a power price valley section, judging whether the time of the power price valley section before the end of the idle time is greater than the calculated charging time or not, and if so, judging that the electric automobile unit is in an idle state; if not, judging that the electric automobile unit is not in an idle state;
the specific steps of judging the charging of the electric vehicle unit according to the current percentage of the remaining electric quantity, the energy storage parameters and the time period of combining the electricity price and issuing a charging control instruction to the charging and discharging unit according to the judgment result are as follows:
when the percentage of the current remaining power is smaller than the percentage of the idle ending required power, the charging judgment is carried out on the electric automobile unit in combination with the electricity price time period, and the specific judgment is as follows:
when the power grid is in a power utilization peak period and is in a power price level section or a power price valley section, judging whether the time of the power price valley section before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the electricity utilization peak period and is in the electricity price peak period, judging whether the sum of the time of the electricity price level period and the time of the electricity price valley period before the idle time is over is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the electricity price level section, judging whether the time of the electricity price valley section before the end of the idle time is less than or equal to the calculated charging time, and if so, issuing a charging control instruction to the charging and discharging unit; if not, not sending a charging control instruction to the charging and discharging unit;
when the power grid is not in the peak period of power utilization and is in the valley period of power price, a charging control instruction is issued to the charging and discharging unit;
and when the percentage of the current remaining electric quantity is larger than or equal to the percentage of the idle ending required electric quantity, the electric automobile unit is not subjected to charging judgment.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 5 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 5.
CN201911308115.6A 2019-12-18 2019-12-18 Distributed energy storage method, device, equipment and medium for electric automobile Pending CN110920459A (en)

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CN112721713A (en) * 2021-02-02 2021-04-30 四川光慧新能源科技有限公司 Distributed charging pile control management system and arrangement method
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