KR102178748B1 - Apparatus and method for updating the remaining lifetime parameters of a modular in a energe save system - Google Patents

Abstract

The present invention provides a device for updating a modular residual life parameter of an energy storage system, which comprises: a modular selection unit selecting a test pair among a plurality of modules; a charging/discharging processing unit performing charging and discharging processes for the modules of the selected test pair in one cycle, and performing the charging and discharging processes of selected first and second modules to be opposed to each other; a data acquisition unit acquiring test data through the modules of the test pair to be charged and discharged; and a residual life calculation unit calculating a residual life parameter of the module of the test pair using the acquired test data.

Description

Apparatus and method for updating the remaining lifetime parameters of a modular in a energe save system}

The present invention relates to an apparatus and method for updating a modular residual life parameter of an energy storage system, and more particularly, to a module of an energy storage system that manages the life of a module by predicting the remaining life of a module in an energy storage system composed of a plurality of modules. It relates to an apparatus and method for updating a remaining life parameter.

In the conventional hot-swap modular ESS, we intend to use a method that predicts the life of each module and enables inspection and repair at regular intervals, and for this purpose, a method of calculating the remaining life parameters through experimental and theoretical methods is used. .

However, for the remaining life calculated through the conventional method, experimental and theoretical data must be obtained through many experiments for each battery called a battery module. In particular, when the battery type is different and the manufacturing time is different, the experiment for each module is repeated. There is a hassle to do.

Therefore, in order to check the remaining life of the battery module and use it after leveling, there is a need for a method to minimize the experiment on the battery module to be applied as an ESS, and to reduce the error in calculating the remaining life due to this.

In the conventional hot-swap modular-based ESS configuration, in order to predict the remaining life of each module, it is necessary to verify each parameter through the theoretical calculation of the life-deterioration factor and experimental results.

Conventional methods include the ratio of the modular operating temperature to room temperature (KT), the ratio of the operating current to the modular electrical current specification (KI), and the ratio of the operating voltage to the modular electrical voltage specification (KV) for the following life-degrading factors. It is calculated and used through theoretical and experimental methods.

The factors that deteriorate life are the ratio of the modular operating temperature to room temperature (KT), the ratio of the operating current to the modular electrical current specification (KI), and the ratio of the operating voltage to the modular electrical voltage specification (KV).

Through these life-decreasing factors, the predicted life of the modular can be calculated as "modular reference life/(KT * KI * KV)", and the remaining operation time of the modular under the same condition is calculated as "modular reference life-modular predicted life". Can be calculated.

In addition, the modular accumulated operation time can be calculated as "actual operation time * KT * KI * KV", and the modular remaining operation time can be calculated as "reference life-modular accumulated operation time".

However, the ratio of the modular operating temperature to room temperature (KT), the ratio of the operating current to the modular electrical current specification (KI), and the ratio of the operating voltage to the modular electrical voltage specification (KV) depend on the type or model of the material constituting each module. It can be calculated differently depending on the situation.

In particular, for a battery module, when a specific module is applied to an energy storage system, a number of modules are required or a long experiment is required to calculate parameters such as KT, KI, and KV for the selected module.

Therefore, if a battery module having different characteristics other than the existing battery module is applied to an energy storage system, there is a problem in that a plurality of modules must be tested or repeated experiments for a long time at the level performed in the first applied battery module.

The present invention was conceived to solve the above problem, and even if the characteristics or types of the modules constituting the energy storage system are different, the remaining life test is enabled to enable the update and management of the remaining life parameters of the modules. An object of the present invention is to provide an apparatus and method for updating a modular residual life parameter of an energy storage system that increases the operating life of a clear and stable energy storage system.

The object of the present invention is not limited to the above-mentioned object, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, an apparatus for updating a modular residual life parameter of an energy storage system according to an embodiment of the present invention includes: a modular selection unit for selecting a test pair among a plurality of modules; A charging/discharging processing unit performing charging and discharging processes for the selected test pair of modules in one cycle, and performing charging and discharging processes of the selected first and second modules to be opposed to each other; A data acquisition unit for acquiring test data through the module of the test pair to be charged and discharged; And a remaining life calculation unit that calculates a remaining life parameter of the module of the test pair using the obtained test data.

According to an embodiment of the present invention, a method for updating a parameter of a modular residual life of an energy storage system includes: selecting a test pair from among a plurality of modules; Charging and discharging the modules of the selected test pair to be opposed to each other; Acquiring test data during the charging and discharging; And calculating a residual life parameter of the module of the test pair by using the obtained test data.

According to an embodiment of the present invention, even if the types of the modules constituting the energy storage system are different, the modules can perform a residual performance test, and update and manage the residual life parameters of the modules through the result of the residual performance test. Thus, there is an effect of increasing the operating life of a more clear and stable energy storage system.

In addition, another effect of the present invention is that it is possible to eliminate deviations in the lifetime of the entire module of the energy storage system, to suppress in advance a phenomenon in which only a specific module is continuously deteriorating in life, etc., and abnormal operation or lifetime of a specific module. Even when replacing due to deterioration, the number and period of theoretical and experimental tests for a new module can be reduced, so it can be easier than applying a new module to the corresponding energy storage system, and modular-based energy storage in a short time. There is an effect that can be supported so that the system can be operated normally.

In addition, other effects of the present invention are effective to enable replacement and maintenance of a plurality of modules at a similar time point as the averaged and stable lifespan is reduced.

In addition, another effect of the present invention can be confirmed in advance by a periodic residual performance test for a module that is expected to exhibit abnormal characteristics, so that the existing sequential failures continue to occur, so that frequent failure repair and replacement of manpower is required. There is an advantage that does not occur.

In addition, another effect of the present invention is that the occurrence of a dangerous situation due to a failure of a modular module occurring as an event can be detected in advance, and since the module can be maintained at a specific time or period, the economic cost burden for maintenance can be reduced. There is an advantage to be able to.

1 is a block diagram illustrating an apparatus for updating a modular residual life parameter of an energy storage system according to an embodiment of the present invention.
2 is a block diagram illustrating an operation of an apparatus for updating a modular residual life parameter of an energy storage system according to an embodiment of the present invention.
3 is a flowchart illustrating a method of correcting a residual life parameter KH in an apparatus for updating a modular residual life parameter of an energy storage system according to an embodiment of the present invention.
4 is a flowchart illustrating a method of updating a modular remaining life parameter of an energy storage system according to an embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have it, and the invention is only defined by the scope of the claims. Meanwhile, terms used in the present specification are for explaining embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" refers to the presence of one or more other components, steps, operations and/or elements in which the recited components, steps, operations and/or elements Or does not preclude additions.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a block diagram illustrating a configuration of an apparatus for updating a modular residual life parameter of an energy storage system according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of an update of a modular residual life parameter of an energy storage system according to an embodiment of the present invention. It is a configuration block diagram for describing the operation of the device.

As shown in FIGS. 1 and 2, the modular residual life parameter update apparatus of an energy storage system according to an embodiment of the present invention includes a modular selection unit 100, a charge/discharge processor 200, and a data acquisition unit 300. , And a remaining life calculation unit 400 and a modular driving control unit 500.

The modular selection unit 100 selects, as a test pair, a test pair of modules 11-1 to 11-n among a plurality of modules 11-1 to 11-n operating on the energy storage system.

In addition, the charge/discharge processing unit 200 performs a charging and discharging process for the selected test pair of modules 11-1 and 11-2 in one cycle. At this time, the charging and discharging processes of the selected first module 11-1 and the second module 11-2 are mutually opposed. For example, the charge/discharge processing unit 200 may perform a first full charge, a pause, a first complete discharge, a pause, a second complete charge, a pause, a second complete charge, for the first module 11-1 selected as a test pair. The process of discharging and rest is performed, and for the second module (11-2), the process of 1st complete discharge, pause, 1st complete charge, pause, 2nd complete discharge, pause, 2nd complete charge, and pause Perform. Through this process, all of the modules 11-1 and 11-2 selected as a test pair are completely discharged and fully charged twice, respectively. In the present invention, complete discharge and full charge are performed twice, respectively, but the number of times is not limited.

The data acquisition unit 300 acquires test data of the charging and discharging states of the modules 11-1 and 11-2 of the test pair. The data acquisition unit 300 includes data for the first and second full discharges of the first module 11-1 and the first and second full discharges of the second module 11-2. The data is used as test data for checking the remaining life of this battery module 10.

In addition, the remaining life calculation unit 400 calculates the remaining life parameters KH for the modulas 11-1 and 11-2 of the test pair, respectively, using the acquired test data.

The modular drive control unit 500 performs life equalization for periodic maintenance of the modular 10 according to the calculated residual life parameter KH.

According to an embodiment of the present invention, the remaining life parameter is calculated by using a pair of modules operating in the energy storage system as a test pair, and the calculated remaining life parameter is updated, thereby operating in the energy storage system. There is an effect of operating the module management more clearly and stably and increasing the life of the module.

Meanwhile, in an exemplary embodiment of the present invention, the modular drive control unit 500 may operate by grouping the modular 10 in order of grade according to the previously applied residual life parameter KH.

Thereafter, the modular driving control unit 500 may reset the grouping of the selected modular 11 according to the newly calculated remaining life parameter KH_NEW, and collectively operate the grouped plurality of modules.

If the selected modulus that calculated the residual life parameter has a grade of 2 or higher, it is determined whether or not the previously applied residual life parameter (KH) and the new residual life parameter (KH_NEW) differ from a preset abnormality, and the determination result If there is a difference from a preset abnormality, it is determined that the selected module needs to be checked.

In this case, the modular driving control unit 500 may take a shorter monitoring period for the module requiring the inspection.

On the other hand, the modular drive control unit 500 controls the total operating power so as not to exceed 50% of the rated level for a group containing a module requiring inspection. Thereafter, in the residual performance test of a preset number of times (for example, 2 times), the operating power can be increased to the rated value and used if it is included in the group equally.

<Second Example>

In one embodiment of the present invention, test data for confirming the remaining life is obtained by using a method of fully charging and completely discharging a module, whereas the charge/discharge processing unit 200 in another embodiment of the present invention is fully charged and It is also possible to obtain test data for confirming the remaining life of the module by performing charging and discharging only up to a predetermined capacity without completely discharging.

As an example, the charge/discharge processing unit 200 includes a first full charge, pause, discharge to 50% SOC, pause, 0.5C discharge, 0.5C charge, 1C discharge, 1C for the first module 11-1 of the test pair. Processes such as charge, 1.5C discharge, 1.5C charge, 2C discharge, 2C charge, and pause are performed, and the first complete discharge for the second module 11-2 of the test pair -> pause -> SOC 50% Charge to -> pause -> 0.5C charge -> 0.5C discharge -> 1C charge -> 1C discharge -> 1.5C charge -> 1.5C discharge -> 2C charge -> 2C discharge -> pause .

If, in the above charging and discharging process, each module 10 can meet the SOC level of 50% even if it is not in an initial full charge or full discharge state, the second full charge and the second complete discharge may be excluded. In this case, even if the capacity of the modular 10 is not exactly 50%, it is sufficient to have a similar level within a preset range (5%).

Therefore, according to another embodiment of the present invention, by securing the data of the residual performance test through the test pair, it is possible to sequentially apply the other modules operating in the energy storage system, so that the residual performance test for the entire module is performed. It can be performed, and in this process, there is an effect of maintaining the same amount of power in the entire energy storage system. Such a residual performance test may be performed while the entire energy storage system is discharged or charged, or may be performed even in a situation where the entire energy storage system is maintained without energy charging/discharging.

In addition, the residual performance test result calculated in the process of each of the modules 10 being performed is to calculate a new residual life parameter (KH) by checking each test data in the energy storage system.

Here, the formula for determining the residual life parameter is the residual performance test result confirmed at the present time without consideration of the modular residual operation time in "Applied residual life parameter (KH) = modular residual operation time / (standard life)". In the case of confirmation, it is calculated as "newly calculated residual life parameter (KH_NEW) = residual performance / (reference performance)".

Through this, in the future, the ratio of the modular operating temperature to room temperature (KT), the ratio of the operating current to the modular electrical current specification (KI), and the ratio of the operating voltage to the modular electrical voltage specification (KV), which inversely affects the remaining life parameters. It is also possible to correct parameter values such as.

Accordingly, in another embodiment of the present invention, the remaining life calculation unit 400 further includes a parameter correction unit 600 for correcting the applied remaining life parameter KH.

For example, as shown in FIG. 3, the parameter correction unit 600 determines whether the difference between the newly calculated remaining life parameter KH_NEW and the previously applied remaining life parameter KH is a difference of more than a preset %. It is determined (S310).

If the difference between the newly calculated remaining life parameter KH_NEW and the previously applied remaining life parameter KH is less than or equal to a preset% (3%) (YES) in the determining step S310, the previously applied remaining life parameter KH The correction of is not performed (S311).

On the other hand, if the difference between the remaining life parameter (KH_NEW) newly calculated in the determining step (S310) and the previously applied remaining life parameter (KH) is more than a preset% (3%) (NO), the difference is newly calculated. It is determined whether it corresponds to a preset range of the remaining life parameter KH_NEW (S312).

If, in the step (S312) of determining whether the difference corresponds to a preset range of the newly calculated residual life parameter (KH_NEW), if the difference is within a preset range (YES), the newly calculated residual life parameter (KH_NEW) It is determined whether is greater than the previously applied residual life parameter KH (S313).

In the step of determining whether the newly calculated remaining life parameter (KH_NEW) is greater than the previously applied remaining life parameter (KH) (S313), if the newly calculated remaining life parameter (KH_NEW) is greater than the previously applied remaining life parameter (KH) ( YES), the parameter correction unit 600, as "the previously applied residual life parameter (KH) + ((newly calculated residual life parameter (KH_NEW)-previously applied residual life parameter (KH)))/2)" It is calculated and the existing remaining life parameter KH is corrected (S314).

In the step of determining whether the newly calculated remaining life parameter (KH_NEW) is greater than the previously applied remaining life parameter (KH) (S313), if the newly calculated remaining life parameter is smaller than the previously applied remaining life parameter (NO), the parameter is reported. The government 600 calculated as the previously applied residual life parameter (KH) value-((existing previously applied residual life parameter (KH)-newly calculated residual life parameter (KH_NEW))/2) and the existing applied residual life parameter It corrects (S315).

On the other hand, in the step (S312) of determining whether the difference corresponds to a preset range of the newly calculated residual life parameter KH_NEW, the difference is a certain range (3%) of the residual life parameter KH_NEW confirmed through a test. ~ 5%) or more (NO), the parameter correction unit 600 corrects as "the previously applied remaining life parameter (KH) = the newly calculated remaining life parameter (KH_NEW)" (S316).

On the other hand, at the time when the next residual performance test is performed, if a difference of 5% or more occurs again in the newly calculated residual life parameter KH_NEW from the previously applied residual life parameter KH, the parameter correction unit 600 Correct the parameter values of the lowering factor, the ratio of the modular operating temperature to room temperature (KT), the ratio of the operating current to the modular electrical current specification (KI), and the ratio of the operating voltage to the modular electrical voltage specification (KV). In this way, the previously applied remaining life parameter KH may be corrected by using the newly calculated remaining life parameter KH_NEW.

It does not explain how to correct parameter values such as the ratio of the modular operating temperature to room temperature (KT), the ratio of the operating current to the modular electrical current specification (KI), and the ratio of the operating voltage to the modular electrical voltage specification (KV). , A method of calculating inversely by using the newly calculated residual life parameter (KH_NEW) value, which was confirmed while repeatedly performing the residual performance test, and the recorded data on the environment in which the selected module 10 was operated, can be used. have.

Since the previously applied residual life parameter (KH) newly calculated through the above process is a residual life parameter, the group classification affected by this is changed.

In a modular-based energy storage system, life leveling is performed for periodic maintenance, and based on the remaining life parameter used for horizontal leveling, a group to perform motion control is divided and used. They are regrouped according to the lifetime parameter (KH).

When the groups are re-divided, the modular 10 may be moved between the groups with the highest applied residual life parameter (KH) and the next group, and if one group is moved in this way, it is normal. Classified as a regroup process.

However, if it is a case in which two group steps are skipped at once, and an error of more than 5% has occurred in the above process, it can be determined that the selected module 10 needs to be checked.

For the module 10 that needs such inspection, the monitoring period is taken shorter, and even when the group containing the selected module 10 is included in the operation, the total operating power is controlled so that it does not exceed 50% of the rating. .

And if it is included in the relevant group in the next two remaining performance tests, it is possible to increase the operating power to the rated value and use it.

In the case of testing each module 10 constituting the modular-based energy storage system while periodically performing the residual performance test, the data must have accumulated test data for checking the remaining life of at least 10 times, and a trend line for this Even though it must have the same characteristics after being calculated, the module 10 that deviates the most from the trend line averaged by each trend line is the same until it is confirmed that it is included in the corresponding group in the next two remaining performance tests described above. Use by limiting the operating power to 70% of the rating.

Hereinafter, a method of updating a modular residual life parameter of an energy storage system according to an embodiment of the present invention will be described with reference to FIG. 4.

First, a test pair is selected from among a plurality of modules installed and operated in the energy storage system (S410).

Subsequently, charging and discharging processes are performed so that the modules of the selected test pair are opposed to each other (S420). At this time, it is preferable to perform the complete charging and complete discharging process for the selected module in one cycle, and to perform a plurality of times.

In addition, the step of performing the charging and discharging processes to be mutually opposed (S200) includes discharging or charging the state of charge (SOC) of the battery to a preset% for the selected module, and then charging and charging as much as the preset capacity. It can also be carried out by increasing the discharge capacity.

For example, for the first module 11-1 of the test pair, the first full charge, pause, discharge to 50% SOC, pause, 0.5C discharge, 0.5C charge, 1C discharge, 1C charge, 1.5C discharge, Processes such as 1.5C charge, 2C discharge, 2C charge, and pause are performed, and the first complete discharge for the second module (11-2) of the test pair -> pause -> charge up to 50% SOC -> pause- > 0.5C charge -> 0.5C discharge -> 1C charge -> 1C discharge -> 1.5C charge -> 1.5C discharge -> 2C charge -> 2C discharge -> Rest.

If, in the above charging and discharging process, each module 10 can meet the SOC level of 50% even if it is not in an initial full charge or full discharge state, the second full charge and the second complete discharge may be excluded. In addition, even if the capacity of the modular 10 is not exactly 50%, it may be at a similar level within 5%.

Thereafter, the module of the test pair acquires test data during charging and discharging (S430).

Subsequently, the residual life parameter of the module of the test pair is calculated using the acquired test data (S440).

According to an embodiment of the present invention, even if the types of modules constituting the energy storage system are different, it is possible to test the residual performance of the modules, and update and manage the residual life parameters of the modules through the results of the residual performance test. Thus, there is an effect that can increase the operating life of a more clear and stable energy storage system.

In the above, the configuration of the present invention has been described in detail with reference to the accompanying drawings, but this is only an example, and various modifications and changes within the scope of the technical idea of the present invention are those of ordinary skill in the technical field to which the present invention belongs. Of course this is possible. Therefore, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.

Claims (16)

A modular selection unit for selecting a test pair from among a plurality of modules;
A charging and discharging processing unit performing a charging and discharging process for the selected test pair of modules in one cycle, and performing a charging and discharging process of the selected test pair of the first module and the second module to be mutually opposed;
A data acquisition unit that acquires test data through the modules of the test pair to be charged and discharged;
A remaining life calculation unit that calculates a remaining life parameter of the module of the test pair using the acquired test data; And
In accordance with the calculated residual life parameter (KH), it includes a modular drive control unit that performs life equalization for periodic maintenance of the modules,
The modular drive control unit,
The modules are grouped in order of grade according to the previously applied remaining life parameter (KH), and then the operation group of the selected module is reset according to the newly calculated remaining life parameter (KH_NEW),
When the selected module moves to a group with a preset rating or higher, if there is a difference between the previously applied residual life parameter (KH) and the newly calculated residual life parameter (KH_NEW), it is determined that the selected module needs to be checked. Modular residual life parameter update device of energy storage system.
The method of claim 1,
Modular residual life parameter update device of the energy storage system further comprising a; parameter correction unit for correcting the applied residual life parameter (KH).
The method of claim 2,
The parameter correction unit,
The energy storage system is to determine whether the difference between the newly calculated residual life parameter (KH_NEW) and the previously applied residual life parameter (KH) differs by more than a preset% and determines the correction of the previously applied residual life parameter (KH). Modular residual life parameter update device.
The method of claim 3,
The parameter correction unit,
The difference between the newly calculated remaining life parameter (KH_NEW) and the previously applied remaining life parameter (KH) is a difference of more than a preset %,
If the difference between the newly calculated remaining life parameter (KH_NEW) and the previously applied remaining life parameter (KH) is within a certain range of the newly calculated remaining life parameter (KH_NEW), the newly calculated remaining life parameter (KH_NEW) has been previously applied. Determine whether it is greater than the parameter (KH), and if it is larger, calculate it as in the previously applied residual life parameter (KH) + ((newly calculated residual life parameter (KH_NEW)-previously applied residual life parameter (KH)) / 2). Correct the newly calculated residual life parameter,
If the newly calculated remaining life parameter (KH_NEW) is smaller than the previously applied remaining life parameter (KH), the previously applied remaining life parameter (KH) value-((the previously applied remaining life parameter (KH)-newly calculated Remaining Life Parameter (KH_NEW)) / 2) Modular residual life parameter update device of an energy storage system that corrects the existing applied residual life parameter by calculating it as follows.
The method of claim 3,
The parameter correction unit,
If the difference between the newly calculated remaining life parameter (KH_NEW) and the previously applied remaining life parameter (KH) is more than a certain range of the newly calculated remaining life parameter (KH_NEW), the "applied remaining life parameter (KH) = newly calculated remaining life Modular residual life parameter update device of an energy storage system that corrects as "life parameter (KH_NEW)".
The method of claim 5,
The parameter correction unit,
At the time of the next residual performance test,
If the difference between the newly calculated remaining life parameter (KH_NEW) and the previously applied remaining life parameter (KH) occurs again by more than 5%, the ratio of the modular operating temperature to room temperature (KT), which is a factor of deteriorating life, operates against the modular electrical current specification. Modular residual life parameter update device of the energy storage system to correct the ratio of the current (KI) and the ratio of the operating voltage to the modular electrical voltage specification (KV) parameter values.
delete delete The method of claim 1,
The modular drive control unit,
For the modules that need the above inspection, the monitoring period is shorter,
When a group including the selected modular is included in the operation, the apparatus for updating a modular residual life parameter of an energy storage system controls the total operating power so as not to exceed a preset level of the rating.
The method of claim 9,
The modular drive control unit,
Modular residual life parameter update device of an energy storage system that increases the operating power to the rated value and uses it if it is included in the group performing the residual performance test more than a preset number of times in the next test.
The method of claim 1,
The charge/discharge processing unit,
Modular residual life parameter update device of an energy storage system to perform a process of completely charging and discharging a selected module multiple times in one cycle.
The method of claim 1,
The charge/discharge processing unit,
Modular residual life of the energy storage system, which is performed by discharging or charging the state of charge (SOC) of the battery to a preset capacity for the selected module, and then increasing the charging and discharging capacity by the preset capacity. Parameter update device.
The method of claim 12,
The charge/discharge processing unit,
Modular residual life parameter update device of an energy storage system to detect a predetermined amount of charge in a charged state through the first full charge or full discharge for the selected module.
Selecting a test pair from among a plurality of modules;
Charging and discharging the modules of the selected test pair to be opposed to each other;
Acquiring test data during the charging and discharging; And
Calculating a residual life parameter of the module of the test pair using the acquired test data;
Including; inclusive,
The step of performing the lifetime leveling,
The modular drive control unit groups the modules in order of grade according to the previously applied residual life parameter (KH), then resets the operation group of the selected module according to the newly calculated residual life parameter (KH_NEW), and the selected module is a preset level If the abnormality group is moved, if the previously applied residual life parameter (KH) and the newly calculated residual life parameter (KH_NEW) differ from the preset abnormality, it is determined that the selected module needs to be checked. How to update life parameters.
The method of claim 14,
The step of performing the charging and discharging processes to be mutually opposed,
A method of updating a modular residual life parameter of an energy storage system, wherein a process of completely charging and discharging a selected module is performed multiple times in one cycle.
The method of claim 15,
The step of performing the charging and discharging processes to be mutually opposed,
Modular residual life of the energy storage system, which is performed by discharging or charging the state of charge (SOC) of the battery to a preset capacity for the selected module, and then increasing the charging and discharging capacity by the preset capacity. How to update parameters.

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