CN109598856B - Energy storage charging method and device - Google Patents
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Abstract
The invention discloses an energy storage charging method, which comprises the following steps: collecting voltage, current and residual electric quantity information of the energy storage equipment; the energy storage cloud platform analyzes whether the energy storage equipment needs to be charged or discharged according to the acquired voltage and current of the energy storage equipment and the residual electric quantity information; determining whether the energy storage equipment is charged or discharged at the current moment according to the analysis result; and if the energy storage equipment is selected to be charged or discharged, carrying out energy storage charging according to the access time period, the selected electric charge and the selected service model. The problem of rationally schedule a large amount of energy storage equipment, reach the demand of the unified charging mode of good utilization energy storage resource is solved.
Description
Technical Field
The application relates to the technical field of energy storage, in particular to an energy storage charging method and an energy storage charging device.
Background
The development of micro-grids and energy storage is rapid day by day, the energy storage plays an important role in the energy revolution, the application and popularization of an energy storage system bring the change of natural turnover to the power industry, and with the reformation of a new power system, the items such as grid frequency modulation and peak shaving, renewable energy station wind and light abandonment, intelligent micro-grids, mobile energy storage, retired battery echelon utilization, energy internet and the like are bloomed all to promote the development of energy storage and provide wide market space.
However, various energy storage devices are connected to a power grid, and a great amount of energy storage devices of various individual users are applied, so that the technical problem of reasonably measuring the value of an energy storage system is solved. The charging mode is single, unified management is lacked aiming at service charging of different users, and a large amount of energy storage equipment is reasonably scheduled, so that a good unified charging mode for utilizing energy storage resources is achieved.
Disclosure of Invention
The application provides an energy storage charging method, which solves the problem that a large amount of energy storage equipment is reasonably scheduled to achieve the requirement of a good uniform charging mode for utilizing energy storage resources.
The application provides an energy storage charging method, which is characterized by comprising the following steps:
collecting voltage, current and residual electric quantity information of the energy storage equipment;
the energy storage cloud platform analyzes whether the energy storage equipment needs to be charged or discharged according to the acquired voltage and current of the energy storage equipment and the residual electric quantity information;
determining whether the energy storage equipment is charged or discharged at the current moment according to the analysis result;
and if the energy storage equipment is selected to be charged or discharged, carrying out energy storage charging according to the access time period, the selected electric charge and the selected service model.
Preferably, before the step of collecting the voltage, the current, and the remaining capacity information of the energy storage device, the method further includes:
the energy storage charging unit is a device for charging or discharging the energy storage device, and has the functions of charging, information storage, data encryption and communication. .
Preferably, the energy storage cloud platform analyzes whether the energy storage device needs to be charged or discharged according to the collected voltage, current and remaining power information of the energy storage device, and includes:
and analyzing the power demand P of the power grid of the energy storage device, and providing an electric charge and service model for a user by combining the voltage, the current and the residual electric quantity information of the energy storage device.
Preferably, the electricity rate model includes:
the energy storage cloud platform divides the time-of-use electricity price information according to time periods, finally forms a time-of-use electricity price electricity charge model, and sends the time-of-use electricity price electricity charge model to a user of the energy storage equipment through a communication system.
Preferably, the service model includes:
the users are connected with the users through a block chain technology, and the users and the power grid are connected with each other, so that real-time interaction of the whole resources is realized;
service modules R ═ { R1, R2, …, Rn }, where R1, R2, …, Rn represent a service index, respectively;
the service indicator is assigned a corresponding weight λ, λ ═ { λ 1, λ 2, … λ n }, where λ n is a number between 0 and 1, and the sum λ ═ 1.
Preferably, the service index includes at least one of the following:
user power grid service consumption, inter-user service consumption, system preferential measures and system interrupt service.
Preferably, if the energy storage device is selected to be charged or discharged, the charging for energy storage is performed according to the access time period and the electricity fee and service model selected by the user, and the charging for energy storage includes:
if the energy storage equipment is selected to be charged or discharged, a charging or discharging instruction is sent to the energy storage equipment controller;
according to the selected electricity fee and the service model, the electricity fee is determined by the product P1 (N x Q) of the electricity consumption N (or the discharge quantity N) and the selected electricity fee model, wherein Q is the electricity fee model;
the final charge cost or discharge profit P ═ P1+ f (R1) × 1+ f (R2) × 2 … f (Rn) × λ n, where R1, R2, …, Rn respectively represent one service index in the service module, λ is the corresponding weight assigned to the service index, λ ═ { λ 1, λ 2, … λ n }, where λ n is a number between 0 and 1, and the sum λ ═ 1, f is a calculation function determined according to the grid conditions.
Preferably, the access time period includes: a current time period and a specified time period.
Preferably, the current time period and the specified time period include:
if the electricity charge and the service model sent by the energy storage cloud platform meet the requirements of energy storage users, the energy storage users can charge or discharge the energy storage equipment at the current moment, and the determined time period is the current time period;
and if the electric charge and the service model sent by the energy storage cloud platform cannot meet the requirements of the energy storage user, the energy storage user reserves the electric charge and the service model of the specified time period, when the time period is reached, the energy storage equipment is charged or discharged, and the time period is determined to be the specified time period.
This application provides an energy storage charging device simultaneously, its characterized in that includes:
the acquisition unit is used for acquiring voltage, current and residual electric quantity information of the energy storage equipment;
the analysis unit is used for analyzing whether the energy storage equipment needs to be charged or discharged according to the acquired voltage, current and residual electric quantity information of the energy storage equipment by the energy storage cloud platform;
the determining unit is used for determining whether the energy storage equipment is charged or discharged at the current moment according to the analysis result;
and the charging unit is used for charging the stored energy according to the access time period and the selected electric charge and the service model if the stored energy equipment is selected to be charged or discharged.
According to the energy storage charging method, the received voltage, current and residual electric quantity information of the energy storage equipment are analyzed through the energy storage cloud platform, charging or power generation is determined according to the analysis result, energy storage charging is carried out according to the access time period and the selected electric charge and service model, the problem that a large number of energy storage equipment are reasonably scheduled, and the requirement of a good unified charging mode of utilizing energy storage resources is achieved is solved.
Drawings
Fig. 1 is a flowchart of an energy storage charging method according to an embodiment of the present application;
fig. 2 is a detailed flowchart of charging and discharging charging of an energy storage device according to an embodiment of the present application;
fig. 3 is a diagram illustrating an energy storage charging principle according to an embodiment of the present application;
fig. 4 is a schematic diagram of an energy storage charging apparatus according to an embodiment of the present application.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
Referring to fig. 1, fig. 1 is a flowchart illustrating an energy storage method according to an embodiment of the present disclosure, and the embodiment is described in detail with reference to fig. 1.
And S101, acquiring voltage, current and residual electric quantity information of the energy storage equipment.
The step is used for knowing the current voltage, current and residual electric quantity information of the energy storage equipment.
The energy storage device in this embodiment is used for storing electric energy, and before collecting voltage, current, and remaining capacity information of the energy storage device, the energy storage device needs to be connected to an energy storage charging unit. The energy storage charging unit of the energy storage meter is a device for charging or discharging the energy storage equipment, and has the functions of charging, information storage, data encryption and communication. The method also comprises the steps of collecting the voltage, the current and the residual electric quantity information of the energy storage equipment, and sending the information to the energy storage cloud platform and a user of the energy storage equipment.
When the electric energy stored by the energy storage device is full or close to the upper energy storage limit, the energy storage device does not need to be charged, the energy storage device needs to be discharged at the moment, and when the electric energy stored by the energy storage device is zero or lower than the lower energy storage limit, the energy storage device needs to be charged at the moment. Before the energy storage device is charged or discharged, the voltage and the current of the body energy storage device need to be collected, so that the rated voltage and the rated current of the energy storage device during working can be known.
Step S102, the energy storage cloud platform analyzes whether the energy storage equipment needs to be charged or discharged according to the collected voltage, current and residual electric quantity information of the energy storage equipment.
The method comprises the step of acquiring the voltage and the current of the energy storage equipment and the residual electric quantity information through the energy storage cloud platform, so that the energy storage cloud platform knows the detailed condition of the current energy storage equipment for storing the electric energy, and provides an analysis basis for the energy storage cloud platform.
After the energy storage charging unit collects the voltage, the current and the residual electric quantity information of the energy storage equipment, the information is sent to the energy storage cloud platform through the communication system. An energy storage cloud platform comprising: and analyzing the power demand P of the power grid of the energy storage device, and providing an electric charge and service model for a user by combining the voltage, the current and the residual electric quantity information of the energy storage device. An electricity fee model, comprising: the energy storage cloud platform divides the time-of-use electricity price information according to time periods, finally forms a time-of-use electricity price electricity charge model, and sends the time-of-use electricity price electricity charge model to a user of the energy storage equipment through a communication system. The service model comprises: the users are connected with the users through a block chain technology, and the users and the power grid are connected with each other, so that real-time interaction of the whole resources is realized; service modules R ═ { R1, R2, …, Rn }, where R1, R2, …, Rn represent a service index, respectively; the service indicator is assigned a corresponding weight λ, λ ═ { λ 1, λ 2, … λ n }, where λ n is a number between 0 and 1, and the sum λ ═ 1. The service indexes in the service model comprise: the service consumption of the household power grid, the service consumption among users, the preferential measures of the system and the service interruption of the system.
And step S103, determining whether the energy storage equipment is charged or discharged at the current moment according to the analysis result.
The method comprises the steps of providing an analysis result of the current power grid through the energy storage cloud platform in combination with the functions of the power grid and the current operation condition of the energy storage device, and determining whether to charge or discharge the energy storage device by a user after providing a charging or discharging decision suggestion for the user.
The power grid can issue time-of-use electricity price information, the electricity price information at different times can be different, so the energy storage cloud platform can provide corresponding analysis results and suggestions for users according to the electricity fee and the service model, if the stored electric energy of the energy storage equipment of the users is full or close to the upper energy storage limit and the electricity price of the current power grid is high, the analysis results are sent to the users through the communication system, and the users are suggested to discharge so as to achieve maximum benefit, and if the stored electric energy of the energy storage equipment of the users is zero or lower than the lower energy storage limit and the electricity price of the current power grid is low, the analysis results are sent to the users through the communication system and the users are suggested to charge. And finally, determining whether the energy storage equipment is charged or discharged at the current moment by the user according to the analysis result.
And step S104, if the energy storage equipment is selected to be charged or discharged, charging the energy storage equipment according to the access time period and the selected electric charge and service model.
The step is used for charging the stored energy when the user selects to charge or discharge the energy storage device.
When a user considers that the current time period is suitable for charging or discharging the energy storage device, taking the current time period as an access time period, and then issuing a charging or discharging instruction to the energy storage device controller; according to the electricity fee and the service model selected by the user, the electricity fee is determined by the product P1 of the electricity consumption N (or the discharge quantity N) and the selected electricity fee model; the final charge cost or discharge gain P ═ P1+ f (R1) × λ 1+ f (R2) × 2 … f (rn) × λ n, where f is a calculated function determined from grid conditions.
An access time period comprising: a current time period and a specified time period. If the electricity charge and the service model sent by the energy storage cloud platform meet the requirements of energy storage users, the energy storage users can charge or discharge the energy storage equipment at the current moment, and the determined time period is the current time period; and if the electric charge and the service model sent by the energy storage cloud platform cannot meet the requirements of the energy storage user, the energy storage user reserves the electric charge and the service model of the specified time period, when the time period is reached, the energy storage equipment is charged or discharged, and the time period is determined to be the specified time period.
This application utilizes energy storage charging unit and charging service system to combine together, on its basis, it combines block chain technique to have proposed the price of electricity of considering timesharing, the user carries out energy storage equipment's charge and discharge operation through selecting different time quantum charges model and service model, and simultaneously, the system adopts the charging method based on the resource quantity, the charging unit that is used for energy storage system that can be fine, reach real-time accurate measurement charging, strengthen the user in the system to the user, and the interaction of user and electric wire netting, improve the resource utilization and participate in the reciprocity of main part. Specifically, by combining the energy storage charging unit and the charging service system, the detailed flow of charging and discharging the energy storage device is shown in fig. 2, and the detailed flow of charging and discharging the energy storage device is explained below with reference to fig. 2. The energy storage charging method comprises the steps of firstly connecting energy storage equipment into an energy storage charging unit, then carrying out authentication and registration in a system, collecting information such as voltage and current of the energy storage equipment by the energy storage charging unit, sending the information to an energy storage cloud platform, providing an electric charge and service model for a user by the energy storage cloud platform through analyzing power grid power demand P and combining information such as voltage U, current I and SOC of the energy storage equipment, giving an instruction to a charging equipment controller by combining self demand after the user receives the electric charge and service model of the energy storage cloud platform, selecting charging or discharging, and then charging or discharging according to a time period and the electric charge and service module selected by the user.
Please refer to fig. 3, fig. 3 is a structural diagram of an energy storage charging principle related to the present application, wherein an energy storage charging unit in fig. 3 is connected to an energy storage device, and the energy storage charging unit is a device for charging and discharging charging of an energy storage system, and has functions of storing information, encrypting data and communicating in addition to a charging function. The energy storage charging unit can gather basic information such as voltage U electric current I and SOC of energy storage equipment, also can reach the control command of energy storage equipment down, and energy storage charging unit uploads energy storage cloud platform and user APP with information such as voltage U electric current I and SOC of energy storage equipment, and user and energy storage cloud platform's instruction also can convey downwards simultaneously.
Referring to fig. 4, fig. 4 is a schematic diagram of an energy storage charging device 400 provided in the present application, which includes:
the acquisition unit 410 is used for acquiring voltage, current and residual electric quantity information of the energy storage device;
the analysis unit 420 is used for analyzing whether the energy storage equipment needs to be charged or discharged according to the acquired voltage, current and remaining power information of the energy storage equipment by the energy storage cloud platform;
a determining unit 430, configured to determine whether to charge or discharge the energy storage device at the current time according to the analysis result;
and the charging unit 440 is configured to charge the energy storage device according to the access time period and the selected electricity fee and service model if the energy storage device is selected to be charged or discharged.
Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application 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.
Claims (9)
1. An energy storage charging method is characterized by comprising the following steps:
collecting voltage, current and residual electric quantity information of the energy storage equipment;
the energy storage cloud platform analyzes whether the energy storage equipment needs to be charged or discharged according to the acquired voltage and current of the energy storage equipment and the residual electric quantity information;
determining whether the energy storage equipment is charged or discharged at the current moment according to the analysis result;
if the energy storage equipment is selected to be charged or discharged, energy storage charging is carried out according to the access time period, the selected electric charge and the selected service model, and the method comprises the following steps: sending a charging or discharging instruction to the energy storage device controller; according to the selected electricity fee and the service model, the electricity fee is determined by the product P1 (N x Q) of the electricity consumption N (or the discharge quantity N) and the selected electricity fee model, wherein Q is the electricity fee model; wherein, the charging cost or the discharging profit P ═ P1+ f (R1) × λ 1+ f (R2) × 2 … f (Rn) × λ n, wherein, R1, R2, …, Rn respectively represent a service index in the service module, λ is the corresponding weight allocated to the service index, λ ═ { λ 1, λ 2, … λ n }, wherein λ n is a number between 0 and 1, the sum λ ═ 1, f is a calculation function determined according to the actual condition of the power grid.
2. The method of claim 1, further comprising, prior to the step of collecting voltage, current, and remaining capacity information of the energy storage device:
the energy storage charging unit is a device for charging or discharging the energy storage device, and has the functions of charging, information storage, data encryption and communication.
3. The method according to claim 1, wherein the energy storage cloud platform analyzes whether the energy storage device needs to be charged or discharged according to the collected voltage, current and remaining capacity information of the energy storage device, and comprises:
and analyzing the power demand P of the power grid of the energy storage device, and providing an electric charge and service model for a user by combining the voltage, the current and the residual electric quantity information of the energy storage device.
4. The method of claim 3, wherein the electricity rate model comprises:
the energy storage cloud platform divides the time-of-use electricity price information according to time periods, finally forms a time-of-use electricity price electricity charge model, and sends the time-of-use electricity price electricity charge model to a user of the energy storage equipment through a communication system.
5. The method of claim 3, wherein the service model comprises:
the users are connected with the users through a block chain technology, and the users and the power grid are connected with each other, so that real-time interaction of the whole resources is realized;
service modules R ═ { R1, R2, …, Rn }, where R1, R2, …, Rn represent a service index, respectively;
the service indicator is assigned a corresponding weight λ, λ ═ { λ 1, λ 2, … λ n }, where λ n is a number between 0 and 1, and the sum λ ═ 1.
6. The method of claim 5, wherein the service indicator comprises at least one of:
user power grid service consumption, inter-user service consumption, system preferential measures and system interrupt service.
7. The method of claim 1, wherein the access period comprises: a current time period and a specified time period.
8. The method of claim 7, wherein the current time period and the specified time period comprise:
if the electricity charge and the service model sent by the energy storage cloud platform meet the requirements of energy storage users, the energy storage users can charge or discharge the energy storage equipment at the current moment, and the determined time period is the current time period;
and if the electric charge and the service model sent by the energy storage cloud platform cannot meet the requirements of the energy storage user, the energy storage user reserves the electric charge and the service model of the specified time period, when the time period is reached, the energy storage equipment is charged or discharged, and the time period is determined to be the specified time period.
9. An energy storage billing device, comprising:
the acquisition unit is used for acquiring voltage, current and residual electric quantity information of the energy storage equipment;
the analysis unit is used for analyzing whether the energy storage equipment needs to be charged or discharged according to the acquired voltage and current of the energy storage equipment and the residual electric quantity information by the energy storage cloud platform;
the determining unit is used for determining whether the energy storage equipment is charged or discharged at the current moment according to the analysis result;
the charging unit is used for charging or discharging the energy storage equipment if the energy storage equipment is selected, and charging the energy storage equipment according to the access time period, the selected electric charge and the selected service model, and comprises the following steps: sending a charging or discharging instruction to the energy storage device controller; according to the selected electricity fee and the service model, the electricity fee is determined by the product P1 (N x Q) of the electricity consumption N (or the discharge quantity N) and the selected electricity fee model, wherein Q is the electricity fee model; wherein, the charging cost or the discharging profit P ═ P1+ f (R1) × λ 1+ f (R2) × 2 … f (Rn) × λ n, wherein, R1, R2, …, Rn respectively represent a service index in the service module, λ is the corresponding weight allocated to the service index, λ ═ { λ 1, λ 2, … λ n }, wherein λ n is a number between 0 and 1, the sum λ ═ 1, f is a calculation function determined according to the actual condition of the power grid.
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