KR20220059154A - Apparatus and method for reuse battery rental management - Google Patents

Abstract

Disclosed is a method for managing rental of reuse batteries to reduce risk of uncertainty about quality of reuse batteries. According to the present invention, the method comprises the following steps: setting contract discharge capacity information according to a contract with a customer; monitoring status information of reuse batteries installed in an energy storage system; determining an available discharge capacity capable of being discharged during a discharge cycle of the reuse batteries on the basis of monitoring information on states of the reuse batteries; determining whether an energy storage system can guarantee a contract discharge capacity during the discharge cycle of the reuse batteries on the basis of the available discharge capacity and the contract discharge capacity; updating installation conditions of the reuse batteries for the energy storage system when it is determined that the energy storage system cannot guarantee the contract discharge capacity; and providing information on the installation conditions of renewed reuse batteries to a service provider who rents the reuse batteries.

Description

REUSE BATTERY RENTAL MANAGEMENT METHOD AND APPARATUS

The following description relates to a method and apparatus for managing rental of a reuse battery in a process of renting a reuse battery. More specifically, there is provided a method and apparatus for monitoring the status of a reuse battery in order to provide a rental service for a reuse battery in a manner that guarantees a discharge amount, and managing a rental capacity for a reuse battery based thereon.

Description of the supporting study

The present invention was made with the support of the following research project hosted by Gyeongbuk Technopark.

Project name: Support for commercialization of innovation projects in special regulatory free zones

Project name: Support for commercialization of battery recycling in special regulatory zones

Period: 2020.08.03.~2020.11.02

Organized by : Gyeongbuk Techno Park

Contribution rate: 100%

As environmental problems and energy problems have become issues, research on electric vehicles has been conducted and is gradually being commercialized. An electric vehicle has the advantage of almost no exhaust gas because it uses a rechargeable battery as its main power source.

During the use of an electric vehicle, the battery is repeatedly charged and discharged, and the energy storage capacity of the battery gradually decreases as the number of times of charging and discharging is accumulated. When the battery of an electric vehicle loses its energy storage capacity below a predetermined standard, the battery of the electric vehicle is replaced. At this time, the old battery with degraded performance can be collected and recycled for other applications.

A recycled battery, that is, a reuse battery, may be utilized in an energy storage system. Reuse batteries can be installed in energy storage systems to charge power and supply power through discharging when needed. The value of a reuse battery is usually determined by its remaining life. However, because of the problem of reliability of the prediction result of the remaining life of the reuse battery, the transaction of the reuse battery causes many problems. Against this background, there is a need for a technology that can easily support the provision of a service for a Reuse battery and a transaction accompanying it.

According to at least one embodiment, a reuse battery rental management method and apparatus provided to provide a reuse battery rental service are disclosed.

According to one aspect, there is provided a method performed by a rental management device of a reuse battery. The method includes: setting contract discharge capacity information according to a contract with a customer; monitoring the status information of the reuse batteries installed in the energy storage system; determining an available discharge capacity that the reuse batteries can discharge during a discharge cycle based on monitoring information on the states of the reuse batteries; determining whether the energy storage system can guarantee the contracted discharge capacity during a discharge cycle of the reuse batteries based on the available discharge capacity and the contracted discharge capacity; updating installation conditions of reuse batteries for the energy storage system when it is determined that the energy storage system cannot guarantee the contracted discharge capacity; and providing the updated information on installation conditions of the reused batteries to a business that rents the reused batteries.

The monitoring of the state information of the reuse batteries may include measuring an integrated value of at least one of a charge current and a discharge current of the reuse batteries after the reuse batteries are installed in the energy storage system, and the reuse batteries are installed in the energy storage system. The method may include updating the remaining life information of the reused batteries based on the residual life information at a time when the batteries are initially installed and an integrated value of at least one of the charging current and the discharging current.

The determining of the available discharging capacity may include: determining the maximum discharging capacity of the reused batteries based on the updated remaining life information of the reused batteries; determining an allowable lower limit and an allowable upper limit of a discharge state supporting the reused batteries to satisfy a predetermined safety condition from the updated remaining life information of the reused batteries using a lookup table prepared in advance; and determining the available discharge capacity based on the maximum discharge capacity of the reuse batteries, the allowable lower limit, and the allowable upper limit.

The updating of the installation conditions of the reused batteries includes comparing the remaining life information of the reused batteries with a reference remaining life and installing the reused batteries so that the reused batteries that do not satisfy the standard remaining life are replaced. Can be updated.

The updating of the installation conditions of the reuse batteries may include comparing the available discharge capacity with a reference capacity determined based on the contract discharge capacity, and expanding the reuse batteries when the available discharge capacity is less than the reference capacity. The installation conditions of the reuse batteries may be updated.

The method may include: monitoring a used discharge amount of the energy storage system for each discharge cycle of the reuse batteries; estimating an expected used discharge amount in a next discharge cycle based on a monitoring result of the used discharge amount of the energy storage system; and determining whether to expand the reuse batteries based on the expected discharge amount and the available discharge capacities of the reuse batteries.

The method may further include providing an alarm for the renewal of the contracted discharge capacity to the customer when the expected used discharge amount of the customer exceeds a threshold determined by the contracted discharge capacity of the customer.

Calculating an additional rental fee for the customer based on a difference between the used discharge amount and the contracted discharge capacity of the energy storage system, and sharing information about the additional charge with the customer and a business that rents the reuse battery It may further include the step of

calculating a discount amount of the rental fee for the customer based on a difference between the used discharge amount and the contract discharge capacity of the energy storage system, and renting the customer and the reuse battery with the discount amount information of the rental fee It may further include the step of sharing to the operator.

According to at least one embodiment, it is possible to guarantee that the customer uses the contract discharge capacity determined by the contract by monitoring the reuse batteries and updating the installation conditions for the reuse batteries during the rental process of the reuse batteries. According to at least one embodiment, it is possible to support a business operator to provide a service for renting a reuse battery to a customer based on a discharge capacity. In this way, it is possible to reduce the risk of uncertainty about the quality of the reuse battery in the transaction process for the reuse battery. According to at least one embodiment, it is possible to reduce the risk of fire due to the reuse battery by determining the available discharge capacity based on the remaining life information of the borrowed reuse batteries. According to at least one embodiment, information on replacement and expansion of reuse batteries may be continuously updated to ensure that the customer uses the contract discharge capacity stably. According to at least one embodiment, it is possible to maximize the service convenience and profit between the operator and the customer by providing information on the renewal of the contracted discharge capacity in consideration of the actual used discharge amount and determining the discount and additional charges.

1 is a conceptual diagram illustrating an energy storage system in which a reuse battery rental management apparatus according to an exemplary embodiment is installed.
2 is a block diagram showing the configuration of the reuse battery rental management apparatus 100 according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a method for managing rental of a reuse battery according to an exemplary embodiment.
4 is a flowchart exemplarily illustrating a process in which step S130 of FIG. 3 is performed.
5 is a conceptual diagram exemplarily illustrating a schema of a lookup table.
6 is a flowchart illustrating steps that may be further performed in the method shown in FIG. 4 .

Specific structural or functional descriptions of the embodiments are disclosed for purposes of illustration only, and may be changed and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosure form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various elements, these terms should be interpreted only for the purpose of distinguishing one element from another. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected to” another component, it may be directly connected or connected to the other component, but it should be understood that another component may exist in between.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, but one or more other features, number, step , it should be understood that it does not preclude the possibility of the existence or addition of an operation, a component, a part, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same components are assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted.

1 is a conceptual diagram illustrating an energy storage system in which a reuse battery rental management apparatus according to an exemplary embodiment is installed.

Referring to FIG. 1 , the energy storage system may include a reuse battery rental management apparatus 100 , a charging/discharging unit 200 , and an energy storage unit 300 . The energy storage system may be installed in a space operated by a customer who rents a reuse battery. The space operated by the customer may include a factory, a farm, a house, an apartment, an electric vehicle charging station, and the like, but the embodiment is not limited thereto.

The charging/discharging unit 200 may be connected to an external device. The charging/discharging unit 200 may receive power from the outside to charge the two reuse batteries 312 included in the energy storage unit 300 . The charging/discharging unit 200 may supply power to an external device through discharging of the two reuse batteries 312 included in the energy storage unit 300 . The charging/discharging unit 200 may provide measurement information on the charging current and the discharging current to the reuse battery rental management apparatus 100 .

The energy storage unit 300 may include a plurality of battery racks 310 . Battery racks 310 may be interconnected in parallel. Each battery rack 310 may include a plurality of reuse batteries 312 two.

The reuse battery rental management apparatus 100 may monitor the states of the two reuse batteries 312 . The reuse battery rental management apparatus 100 may monitor the discharge capacity used by the energy storage system. The reuse battery rental management apparatus 100 may update information necessary for maintaining the reuse battery rental service based on the monitoring information and provide the updated information to a terminal used by a customer or a terminal used by a business operator.

The reuse battery rental management apparatus 100 may be operated by a business that provides a reuse battery rental service. The operator may provide a rental service of the two reuse batteries 312 according to a contract with the customer. The operator may guarantee the amount of discharge by the two reuse batteries 312 to the customer. For example, the operator may guarantee the amount of discharge per day by the two reuse batteries 312 to the customer. However, the embodiment is not limited thereto. For example, the operator may guarantee the amount of discharge by the two reuse batteries 312 to the customer on a weekly or monthly basis.

The reuse battery rental management apparatus 100 may generate rental management information for reuse batteries so that a service provider can smoothly provide a service for a guaranteed discharge amount to a customer. Reuse battery rental management device 100 is typical computer hardware (eg, a computer processor, memory, storage, input device and output device, a device that may include other components of the existing computing device; electronic devices such as routers, switches, etc.) communication devices; electronic information storage systems such as network-attached storage (NAS) and storage area networks (SANs)) and computer software (ie, instructions that cause the computing device to function in a particular way) ) to achieve the desired system performance.

Fig. 2 is a block diagram showing the configuration of the reuse battery rental management apparatus 100 according to an exemplary embodiment.

Referring to FIG. 2 , the computing device 100 may include a processor 110 , a memory 120 , and a communication module 130 . The communication module 130 may communicate with an external device under the control of the processor 110 . The processor 110 may execute a program command stored in a memory and/or a storage device. The processor 110 may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to the present invention are performed. The memory 120 may be configured as a volatile storage medium and/or a non-volatile storage medium. For example, the memory 120 may be configured as a read only memory (ROM) and/or a random access memory (RAM), or a recording medium capable of storing other information. The memory 120 may store information on a lookup table, which will be described later.

Fig. 3 is a flowchart illustrating a method for managing rental of a reuse battery according to an exemplary embodiment. The method shown in FIG. 3 may be performed by the reuse battery rental management apparatus 100 .

Referring to FIG. 3 , in step S110 , the processor 110 may set information on a contracted discharge capacity between a customer and a business operator. The processor 110 may set information on the contract discharge capacity based on information received through an input/output module (not shown). As another example, the processor 110 may set information on the contract discharge capacity based on information received from the external device. The processor 110 may store the set information in the memory 120 .

In step S120 , the processor 110 may monitor the states of the two reuse batteries 312 installed in the energy storage system. The processor 110 may acquire initial remaining life information of each of the two reuse batteries 312 . The processor 110 may receive initial remaining life information of the two used batteries 312 measured in advance from the outside. As another example, the processor 110 may acquire initial remaining life information of the two reuse batteries 312 by performing a charge/discharge test. The processor 110 may monitor the charging current and the discharging current of the two reuse batteries 312 by the energy storage system. The processor 110 may calculate a charge/discharge graph of the two reuse batteries 312 and continuously monitor changes in the remaining lifespan of the two reuse batteries 312 based on this.

In step S130 , the processor 110 may determine an available discharge capacity that the two reuse batteries 312 can discharge during a discharge cycle. For example, the charge/discharge cycle of the two reuse batteries 312 may be repeated on a daily basis. During late-night hours when electricity rates are relatively cheap, the reuse battery 312 may be charged using late-night electricity. In addition, the energy storage system may supply power to an external device through discharging of the reuse battery 312 during daytime when electricity rates are relatively high. In this case, the charging period of the reuse battery 312 may correspond to the late night time and the discharging period may correspond to the day time. However, the embodiment is not limited thereto. For example, the charge/discharge cycle of the reuse battery 312 may be determined in units of weeks or a plurality of days instead of days.

4 is a flowchart exemplarily illustrating a process in which step S130 of FIG. 3 is performed.

Referring to FIG. 4 , in step S132 , the processor 110 may obtain measurement information on the integrated value of at least one of the charging current and the discharging current of the two reuse batteries 312 . For example, the processor 110 may calculate the accumulated charge amount of the two reuse batteries 312 by obtaining an integrated value of the charging current after the two reuse batteries 312 are installed. As another example, the processor 110 may calculate the accumulated discharge amount of the two reuse batteries 312 by obtaining an integrated value of the discharge current after the two reuse batteries 312 are installed.

In step S133 , the processor 110 may update the remaining life information of the two reuse batteries 312 . The processor 110 may update the remaining life information based on at least one of the accumulated charge amount and the accumulated discharge amount of the two reuse batteries 312 described above. The processor 110 may update the initial remaining lifespan of the reuse battery 312 secured in advance by using a parameter calculated based on at least one of the accumulated charge amount and the accumulated discharge amount. For example, the processor 110 may update the remaining life to be lower as the accumulated charge amount or accumulated discharge amount increases.

The remaining life of the reuse battery may include a number indicating the period of the remaining life, a numerical value indicating a score related to the remaining life, state of health (SOH) information, and grade information of the battery related to the remaining life of the battery. However, embodiments are not limited thereto, and the information on the remaining life of the battery may include a numerical value or other types of information related to the remaining life of the battery.

In step S134 , the processor 110 may calculate the maximum discharge capacity of the reuse battery 312 based on the remaining life information of the reuse battery 312 . The maximum discharge capacity may mean a power capacity expected to be discharged after being fully charged when the reuse battery 312 has a corresponding remaining life. The processor 110 may analyze a correlation between the remaining lifespan and the maximum discharge capacity of the reuse battery 312 based on previously acquired data, and determine the maximum discharge capacity based on the correlation. In this process, the type and installation environment of the reuse battery 312 may be further considered. For example, the processor 110 may measure a temperature while the reuse battery 312 is being charged and discharged and correct the result of the maximum discharge capacity of the reuse battery 312 based on the use temperature.

In step S135 , the processor 110 may determine an allowable lower limit and an allowable upper limit of a discharge state that supports the reuse battery 312 to satisfy a predetermined safety condition based on the remaining life information of the reuse battery 312 . The predetermined safety condition may correspond to a condition for preventing the occurrence of fire in the course of using the reuse battery 312 . A lithium-ion battery is the most commonly used type of battery. However, there is a risk of fire in lithium-ion batteries during use, and overcharging or overdischarging may account for a significant portion of the causes of fire. Reuse batteries, in particular, can increase the risk of fire as they go through at least one recycling process.

The lower and upper limits of the allowable discharge state to prevent fire may vary depending on the remaining life of the reuse battery. For example, when the remaining life of the reuse battery is relatively good, a discharge state from a lower lower limit value to a higher upper limit value may be acceptable. On the other hand, when the remaining lifespan of the reuse battery is relatively small, a discharge state from a higher lower limit value to a lower upper limit value may be allowed. The processor 110 may determine the upper limit value and the lower limit value by using a lookup table previously stored in the memory 120 .

5 is a conceptual diagram exemplarily illustrating a schema of a lookup table.

Referring to FIG. 5 , the lookup table includes a column C1 for storing information on the type of a reuse battery, a column C2 for storing information about the remaining life of the used battery, a column C3 for storing information on the lower limit of discharge of the used battery, and It may include a C4 column for storing information on the upper limit of the allowable discharge of the reuse battery.

Information stored in the lookup table may be collected by a business operator. The operator can determine the allowable lower limit and the allowable upper limit for the discharge corresponding to the remaining life of the reuse battery through multiple test experiments, and configure a lookup table using these. The lookup table may be stored in the memory 120 . Information of the lookup table may be continuously updated by the update provided by the operator.

The processor 110 may search for corresponding information in the C1 column in consideration of the model name, manufacturer, and the like of the reuse battery 312 . The processor 110 may search the C2 column for a value matching the remaining life information of the reuse battery 312 updated in step S133. The processor 110 may determine the allowable upper limit and the allowable lower limit by loading the values of the C3 column and the C4 column from the row corresponding to the reuse battery 312 installed in the energy storage system.

5 shows that the allowable upper limit and the allowable lower limit depend on the remaining lifespan and the type of the reuse battery 312 , but the embodiment is not limited thereto. For example, the lookup table may further include a column storing the number value of the reuse batteries 312 installed in the energy storage system and a column storing the use temperature value of the energy storage system. The processor 110 may determine the allowable upper limit and the allowable lower limit by further considering the number and use temperature of the reuse batteries 312 installed in the energy storage system using the lookup table.

Referring back to FIG. 4 , in step S136 , the processor 110 may determine the usable discharge capacity of the reuse battery. The processor 110 may determine the available discharge capacity in consideration of the maximum discharge capacity and the allowable upper limit and the allowable lower limit of the discharge state. The processor 110 may determine the usable discharge capacity by multiplying the maximum discharge capacity by a factor corresponding to the difference between the allowable upper limit and the allowable lower limit.

Referring back to FIG. 4 , in step S140 , the processor 110 may compare the available discharge capacity of the reuse batteries 312 determined in step S130 with the contract discharge capacity obtained in step S110 . The processor 110 may determine whether the reuse batteries 312 can guarantee the contracted discharge capacity in consideration of the available discharge capacity.

The processor 110 may determine the reference discharge capacity based on the contract discharge capacity. For example, the processor 110 may determine 1.2 times the contract discharge capacity as the reference discharge capacity. The above-described numerical values are merely exemplary and the embodiment is not limited thereto. The processor 110 may determine the reference discharge capacity by multiplying the contract discharge capacity by any other constant or by adding a predetermined spare discharge capacity to the contract discharge capacity.

When the available discharge capacity of the reuse batteries 312 is greater than the reference discharge capacity, the processor 110 may determine that the reuse batteries 312 can guarantee the contract discharge capacity. When the available discharge capacity of the reuse batteries 312 is less than the reference discharge capacity, the processor 110 may determine that the reuse batteries 312 cannot guarantee the contract discharge capacity.

As another example, the processor 110 may determine whether any of the reuse batteries 312 have a remaining lifespan of less than a predetermined reference lifespan. If there is a reuse battery whose remaining lifespan is lower than the reference lifespan, the processor 110 may determine that the contract discharge capacity cannot be guaranteed.

In step S150 , when the available discharge capacity of the reuse batteries 312 is less than the reference discharge capacity, the processor 110 may update the installation conditions to extend the reuse batteries 312 . Also, when there is a used battery whose remaining lifespan is lower than the reference lifespan among the reused batteries 312 , the processor 110 may update the installation condition to replace the reused battery. The processor 110 may share the updated installation condition with the terminal used by the operator. The operator can stably provide the discharge capacity guaranteed by the contract by expanding the reuse battery at an appropriate time based on the information provided by the reuse battery rental management apparatus 100 . Through this, operators can provide re-use battery rental services with customers based on the power usage guarantee.

6 is a flowchart illustrating steps that may be further performed in the method shown in FIG. 4 .

Referring to FIG. 6 , in step S172 , the processor 110 may monitor power consumption of the energy storage system.

In step S174 , the processor 110 may monitor the power consumption by monitoring the amount of power discharged during the discharge cycle of the reuse batteries 372 . The processor 110 may analyze the customer's power consumption pattern based on the amount of discharge information collected during a predetermined period. The processor 110 may estimate an expected used discharge amount required for the energy storage system to satisfy the customer's power consumption based on the analysis result. For example, the processor 110 may estimate the maximum amount of discharge or the average amount of discharge required for the energy storage system for the customer's power consumption.

In step S176 , the processor 110 may determine whether to extend the reuse battery 372 . The processor 110 may update the installation conditions to extend the reuse battery 372 when the expected discharge amount is greater than the available discharge capacity or greater than a reference value that can be stably guaranteed by the available discharge capacity. The processor 110 may share information on the updated installation condition to the terminal used by the operator.

In step S178, the processor 110 may compare the expected used discharge amount with the contract discharge capacity obtained in step S110. The processor 110 may provide an alarm for renewal of the contracted discharge capacity when the expected used discharge amount is greater than the contracted discharge capacity. The processor 110 may display an alarm through a display displayed on the energy storage system or other output device. As another example, the processor 110 may provide alarm information to a terminal used by a customer. Through this, it is possible to induce the renewal of the contracted discharge capacity to the customer who uses more power than the contracted discharge capacity, thereby creating more revenue for the operator, and allowing the customer to use the power stably using the reuse batteries 312 .

In step S180 , the processor 110 may perform a charge settlement process based on the amount of discharge used in the energy storage system. In general, since the usable discharge capacity of the reuse batteries 312 is set to be larger than the contract discharge capacity, the used discharge amount of the energy storage system may exceed the contract discharge capacity. When the used discharge capacity of the energy storage system exceeds the contract discharge capacity, the reuse battery rental management apparatus 100 may charge an additional fee for the excess portion. The surcharge may be determined based on the difference between the contracted discharge capacity and the actual used discharge capacity. As another example, when the customer's actual used discharge capacity is less than the contracted discharge capacity, the processor 110 may calculate a discount amount of the charge based on the difference between the used discharge capacity and the contracted discharge capacity. The processor 110 may provide information on a discount amount or an additional charge to a device used by a customer and a device used by a business operator.

In the above, the reuse battery rental management method and apparatus according to exemplary embodiments have been described with reference to FIGS. 1 to 6 . According to at least one embodiment, it is possible to guarantee that the customer uses the contract discharge capacity determined by the contract by monitoring the reuse batteries and updating the installation conditions for the reuse batteries during the rental process of the reuse batteries. According to at least one embodiment, it is possible to support a business operator to provide a service for renting a reuse battery to a customer based on a discharge capacity. In this way, it is possible to reduce the risk of uncertainty about the quality of the reuse battery in the transaction process for the reuse battery. According to at least one embodiment, it is possible to reduce the risk of fire due to the reuse battery by determining the available discharge capacity based on the remaining life information of the borrowed reuse batteries. According to at least one embodiment, information on replacement and expansion of reuse batteries may be continuously updated to ensure that the customer uses the contract discharge capacity stably. According to at least one embodiment, it is possible to maximize the service convenience and profit between the operator and the customer by providing information on the renewal of the contracted discharge capacity in consideration of the actual used discharge amount and determining the discount and additional charges.

The embodiments described above may be implemented by a hardware component, a software component, and/or a combination of a hardware component and a software component. For example, the apparatus, methods, and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate (FPGA) array), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions, may be implemented using one or more general purpose or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. A processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or apparatus, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the computer-readable medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with reference to the limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Claims (9)

In the method performed by the rental management device of the reuse battery,
setting contract discharge capacity information according to a contract with a customer;
monitoring the status information of the reuse batteries installed in the energy storage system;
determining an available discharge capacity that the reuse batteries can discharge during a discharge cycle based on monitoring information on states of the reuse batteries;
determining whether the energy storage system can guarantee the contracted discharge capacity during a discharge cycle of the reuse batteries based on the available discharge capacity and the contracted discharge capacity; and
updating installation conditions of reuse batteries for the energy storage system when it is determined that the energy storage system cannot guarantee the contracted discharge capacity; and
Reuse battery rental management method comprising the step of providing information on the installation conditions of the updated reuse batteries to a business that rents the reuse batteries. The method of claim 1,
The step of monitoring the status information of the reuse batteries,
measuring an integrated value of at least one of a charging current and a discharging current of the reuse batteries after the reuse batteries are installed in the energy storage system;
Reuse battery comprising the step of updating the remaining life information of the reuse battery based on the residual life information at the time when the reuse batteries are initially installed and the integrated value of at least one of the charging current and the discharging current How to manage rentals. 3. The method of claim 2,
The step of determining the available discharge capacity,
determining maximum discharging capacities of the reused batteries based on the updated remaining life information of the reused batteries;
determining an allowable lower limit and an allowable upper limit of a discharge state supporting the reused batteries to satisfy a predetermined safety condition from the updated remaining life information of the reused batteries using a pre-prepared lookup table;
and determining the available discharge capacity based on the maximum discharge capacity of the reuse batteries, the allowable lower limit, and the allowable upper limit. 3. The method of claim 2,
The step of updating the installation conditions of the reuse batteries is,
A rental management method of a reuse battery for comparing the residual life information of the reuse batteries with a reference residual life and updating installation conditions of the reuse batteries so that the used batteries that do not satisfy the standard residual life are replaced. 3. The method of claim 2,
The step of updating the installation conditions of the reuse batteries is,
A reuse battery that compares the available discharge capacity with a reference capacity determined based on the contracted discharge capacity, and updates installation conditions of the reuse batteries to expand the reuse batteries when the available discharge capacity is less than the reference capacity How to manage your rental. The method of claim 1,
monitoring a used discharge amount of the energy storage system for each discharge cycle of the reuse batteries;
estimating an expected used discharge amount in a next discharge cycle based on a monitoring result of the used discharge amount of the energy storage system; and
The rental management method of a reuse battery further comprising the step of determining whether to expand the reuse batteries based on the expected used discharge amount and the available discharge capacities of the reuse batteries. 7. The method of claim 6,
The rental management method of the reuse battery further comprising the step of providing an alarm for the renewal of the contracted discharge capacity to the customer when the expected used discharge amount of the customer exceeds a threshold determined by the contracted discharge capacity of the customer. calculating an additional rental fee for the customer based on a difference between the used discharge amount and the contracted discharge capacity of the energy storage system; and
The rental management method of a reuse battery further comprising the step of sharing information about the additional charge with the customer and a business that rents the reuse battery. 9. The method of claim 8,
calculating a discount amount of a rental fee for the customer based on a difference between a used discharge amount and a contract discharge capacity of the energy storage system; and
The rental management method of the reuse battery further comprising the step of sharing the discount amount information of the rental fee with the customer and a business that rents the reuse battery.

Images