CN106842036A - Data processing method and device for determining batteries operating time - Google Patents

Abstract

The invention discloses a data processing method and device for determining the running time of a battery pack. Wherein, the method includes: obtaining the capacity value and the load current value of the battery pack, wherein the load current value is the current value obtained by testing the battery pack under load conditions; determining the battery pack according to the capacity value and the load current value uptime. The invention solves the technical problem in the related art that the running time of the accumulator group cannot be accurately determined.

Description

Data processing method and device for determining the operating time of a battery pack

technical field

The present invention relates to the field of data processing, in particular to a data processing method and device for determining the running time of a battery pack.

Background technique

The storage battery is an important part of the DC power supply of the substation. It is widely used as a backup power supply in the substation, and its reliability directly affects the safe operation of the power grid. At present, most of the judgments on the health status of batteries remain in the way of condition-based maintenance, and some battery online monitoring systems have realized online monitoring of data such as battery pack voltage, current, temperature, and internal resistance. The monitoring of these data can characterize the health status of the battery pack to a certain extent, but it has the following disadvantages: (1) The voltage of the battery pack and the float charge voltage can reflect the health state of the battery pack to a certain extent, but the float charge voltage and There is no corresponding relationship between the capacity of the battery. Often the floating charge voltage of the battery is normal, but its capacity can no longer meet the application requirements. (2) The above monitoring data cannot intuitively represent the power supply capacity of the battery pack, and cannot predict the power supply time of the battery pack running on load in the event of an AC power failure.

Aiming at the technical problem of being unable to accurately determine the operating time of the battery pack in the related art, no effective solution has been proposed so far.

Contents of the invention

Embodiments of the present invention provide a data processing method and device for determining the runnable time of a battery pack, so as to at least solve the technical problem in the related art that the runnable time of the battery pack cannot be accurately determined.

According to an aspect of an embodiment of the present invention, there is provided a data processing method for determining the operating time of a battery pack, including: obtaining a capacity value and a load current value of the battery pack, wherein the load current value is The current value obtained from the test under the load condition; determine the operating time of the battery pack according to the capacity value and the load current value.

Further, obtaining the capacity value of the battery pack includes: acquiring the discharge test history data of the battery pack, wherein the discharge test history data is the electrical parameters measured during the discharge test of the battery pack; determining the test time interval in the discharge test history data The latest discharge test data at the current time; determine the capacity value of the battery pack according to the discharge test data.

Further, obtaining the load current value of the storage battery pack includes: obtaining the current value of the storage battery pack; judging whether the storage battery pack is in a loaded state according to the positive or negative current value of the storage battery pack; if the current value of the storage battery pack is negative, then judging The battery pack is in a loaded state; when it is judged that the battery pack is in a loaded state, the collected load current value of the battery pack is acquired.

Further, determining the runnable time of the battery pack according to the capacity value and the load current value includes: calculating the capacity value and the load current value according to a preset algorithm to obtain the runnable time of the battery pack; recording and displaying the runnable time.

Further, after judging whether the battery pack is in a loaded state according to the positive or negative current value of the battery pack, the method further includes: if the current value of the battery pack is positive, judging that the battery pack is not in a loaded state, and determining whether the battery pack is in a loaded state. The runnable time of the group includes: reading the runnable time of the battery pack in the historical records and the record time corresponding to each historical record; determining the record whose record time is closest to the current time and determining the runnable time in the record as the battery pack runnable time; displays the runnable time in the record.

According to another aspect of the embodiment of the present invention, there is also provided a data processing device for determining the running time of the battery pack, including: an acquisition unit, used to acquire the capacity value and the load current value of the battery pack, wherein the The load current value is the current value obtained by testing the battery pack under load; the determination unit is used to determine the operating time of the battery pack according to the capacity value and the load current value.

Further, the acquisition unit includes: a first acquisition module, configured to acquire the discharge test history data of the battery pack, wherein the discharge test history data is an electrical parameter measured during the discharge test of the battery pack; a first determination module, used to Determine the discharge test data whose test time is closest to the current time in the discharge test history data; the second determination module is used to determine the capacity value of the battery pack according to the discharge test data.

Further, the acquiring unit includes: a second acquiring module, configured to acquire the current value of the battery pack; a judging module, used to judge whether the battery pack is in a loaded state according to the positive or negative of the current value of the battery pack; a first execution module, configured to If the current value of the battery pack is negative, it is determined that the battery pack is in a loaded state; the third acquisition module is configured to acquire the collected load current value of the battery pack when it is judged that the battery pack is in a loaded state.

Further, the determination unit includes: a calculation module, used to calculate the capacity value and load current value according to a preset algorithm to obtain the runnable time of the battery pack; a second execution module, used to record and display the runnable time.

Further, the device further includes: a logic unit, used for judging whether the battery pack is under load according to the positive or negative current value of the battery pack, and judging that the battery pack is not under load if the current value of the battery pack is positive. load condition, the determining unit includes: a reading module, used to read the operable time of the battery pack in the historical records and the corresponding recording time of each historical record; a third determining module, used to determine that the recorded time is the closest to the current time record and determine the runnable time in the record as the runnable time of the battery pack; the display module is used to display the runnable time in the record.

In the embodiment of the present invention, by obtaining the capacity value and the load current value of the battery pack, wherein the load current value is the current value obtained by testing the battery pack under load conditions; The operating time of the battery pack solves the technical problem that the running time of the battery pack cannot be accurately determined in the related art, and thus achieves the technical effect of accurately determining the running time of the battery pack.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a flow chart of an optional data processing method for determining the operating time of a battery pack according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of an optional data processing device for determining the running time of a battery pack according to an embodiment of the present invention.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

According to an embodiment of the present application, an embodiment of a data processing method for determining the running time of a battery pack is provided.

Fig. 1 is a flow chart of an optional data processing method for determining the operating time of a storage battery according to an embodiment of the present invention. As shown in Fig. 1, the method includes the following steps:

Step S101, obtaining the capacity value and the load current value of the battery pack, wherein the load current value is the current value obtained by testing the battery pack under the load condition;

Step S102, determine the runnable time of the battery pack according to the capacity value and the load current value.

The above steps are further explained as follows:

The capacity C of the battery pack is the sum of the capacities of the individual cells in the battery pack. The load current value I refers to the current value of the battery pack under load.

Acquiring the capacity value of the battery pack can be obtained by reading the data in the historical database of the battery pack, specifically, reading the capacity determined during the latest checking discharge test on the battery pack. The checking discharge test is a routine test, which is a test for the discharge capacity of the battery pack. The capacity of the battery pack can be known in the checking discharge test. The capacity value of each checking discharge test of the battery pack can be stored in the historical database. The capacity of the latest checking discharge test can be determined as the capacity value of the battery pack. Alternatively, the acquisition of the capacity value of the storage battery may also test the capacity of the storage battery and send the measurement result to the device implementing the method provided by this embodiment through the measuring sensor.

Obtaining the load current value of the battery pack can be determined by testing, and when the battery pack is loaded, the load current value of the battery pack is collected.

The running time of the battery pack can be determined according to the capacity value and the load current value. Specifically, the running time h of the battery pack under load conditions can be calculated according to the following mathematical formula:

Among them, h is the available time of the battery pack, C is the capacity of the last checking discharge of the battery pack, and I is the current with load.

It should be noted that the above-mentioned method for determining the running time of the battery pack is a preferred implementation.

In this embodiment, by obtaining the capacity value and load current value of the battery pack, and determining the runnable time of the battery pack according to the capacity value and load current value, the technical problem that the runnable time of the battery pack cannot be accurately determined in the related art is solved. Furthermore, the technical effect of accurately determining the operational time of the storage battery pack is achieved.

Preferably, obtaining the capacity value of the storage battery pack includes: obtaining discharge test historical data of the storage battery pack, wherein the discharge test historical data is an electrical parameter measured during the discharge test of the storage battery pack; determining the test time interval in the discharge test historical data The latest discharge test data at the current time; determine the capacity value of the battery pack according to the discharge test data.

Preferably, before acquiring the load current value of the battery pack, it may be determined whether the battery pack is in a loaded state. Obtaining the load current value of the battery pack includes: obtaining the current value of the battery pack; judging whether the battery pack is in a loaded state according to the positive or negative current value of the battery pack; if the current value of the battery pack is negative, judging that the battery pack is in On-load status: when it is judged that the battery pack is in the on-load state, the collected load current value of the battery pack is acquired.

Preferably, after judging whether the battery pack is in a loaded state according to the positive or negative current value of the battery pack, the method further includes: if the current value of the battery pack is positive, then judging that the battery pack is not in a loaded state, usually The lower battery pack is in the floating charging state when it is not in the load state. If the battery pack is not in the load state, you can read the last runnable time determined for the battery pack, and use the last determined runnable time as the battery pack. The current runnable time. Specifically, determining the runnable time of the battery pack includes: reading the runnable time of the battery pack in historical records and the record time corresponding to each historical record; The running time is the running time of the battery pack; the running time in the record is displayed.

Preferably, determining the runnable time of the battery pack according to the capacity value and the load current value includes: calculating the capacity value and the load current value according to a preset algorithm to obtain the runnable time of the battery pack; recording and displaying the runnable time.

It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in the terminal, and although the logical order is shown in the flow chart, in some cases, the steps can be executed in a different order than here steps shown or described.

According to an embodiment of the present application, an embodiment of a data processing device for determining the running time of a battery pack is provided.

FIG. 2 is a schematic diagram of an optional data processing device for determining the running time of a battery pack according to an embodiment of the present invention. As shown in FIG. 2 , the device includes an acquisition unit 10 and a determination unit 20 .

The obtaining unit is used to obtain the capacity value and the load current value of the battery pack, wherein the load current value is the current value obtained by testing the battery pack under the load condition; the determination unit is used to determine the value according to the capacity value and the load current value The operating time of the battery pack.

Preferably, the acquisition unit includes: a first acquisition module, configured to acquire the discharge test history data of the battery pack, wherein the discharge test history data is an electrical parameter measured during the discharge test of the battery pack; a first determination module, used to Determine the discharge test data whose test time is closest to the current time in the discharge test history data; the second determination module is used to determine the capacity value of the battery pack according to the discharge test data.

Preferably, the acquiring unit includes: a second acquiring module, configured to acquire the current value of the battery pack; a judging module, used to judge whether the battery pack is in a loaded state according to the positive or negative of the current value of the battery pack; a first execution module, configured to If the current value of the battery pack is negative, it is determined that the battery pack is in a loaded state; the third acquisition module is configured to acquire the collected load current value of the battery pack when it is judged that the battery pack is in a loaded state.

Preferably, the determination unit includes: a calculation module, used to calculate the capacity value and load current value according to a preset algorithm to obtain the runnable time of the battery pack; a second execution module, used to record and display the runnable time.

Preferably, the device further includes: a logic unit, used for judging that the battery pack is not under load if the current value of the battery pack is positive after judging whether the battery pack is under load according to the positive or negative current value of the battery pack. load condition, the determining unit includes: a reading module, used to read the operable time of the battery pack in the historical records and the corresponding recording time of each historical record; a third determining module, used to determine that the recorded time is the closest to the current time record and determine the runnable time in the record as the runnable time of the battery pack; the display module is used to display the runnable time in the record.

The above-mentioned apparatus may include a processor and a memory, and the above-mentioned units may be stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize corresponding functions.

Memory may include non-permanent memory in computer-readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), memory includes at least one memory chip.

The order of the above-mentioned embodiments of the present application is only for description, and does not represent the advantages or disadvantages of the embodiments.

In the above-mentioned embodiments of the present application, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be realized in other ways. Wherein, the device embodiments described above are only illustrative. For example, the division of the units may be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of units or modules may be in electrical or other forms.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, server or network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes. .

The above description is only the preferred embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, some improvements and modifications can also be made. These improvements and modifications are also It should be regarded as the protection scope of this application.

Claims (10)

1. A data processing method for determining the operating time of a battery pack, characterized in that, comprising: Acquiring the capacity value and load current value of the battery pack, wherein the load current value is the current value obtained by testing the battery pack under load conditions; The runnable time of the battery pack is determined according to the capacity value and the load current value. 2. The method according to claim 1, wherein obtaining the capacity value of the battery pack comprises: Acquiring the discharge test history data of the battery pack, wherein the discharge test history data is an electrical parameter measured during the discharge test of the battery pack; Determining the discharge test data whose test time is closest to the current time in the discharge test history data; The capacity value of the storage battery is determined according to the discharge test data. 3. The method according to claim 1, wherein obtaining the load current value of the battery pack comprises: Acquiring the current value of the battery pack; judging whether the battery pack is in the load state according to the positive or negative of the current value of the battery pack; If the current value of the battery pack is negative, it is determined that the battery pack is in the load state; Acquire the collected load current value of the battery pack when it is determined that the battery pack is in the load state. 4. The method according to claim 3, wherein determining the runnable time of the battery pack according to the capacity value and the load current value comprises: calculating the capacity value and the load current value according to a preset algorithm to obtain the runnable time of the battery pack; The uptime is recorded and displayed. 5. The method of claim 4, wherein, After judging whether the battery pack is in the loaded state according to the positive or negative current value of the battery pack, the method further includes: if the current value of the battery pack is positive, judging that the battery pack is not in the stated load condition, Determining the runnable time of the storage battery pack includes: reading the runnable time of the storage battery pack in historical records and the record time corresponding to each historical record; determining the record whose record time is closest to the current time and determining the The runnable time in the record is the runnable time of the battery pack; display the runnable time in the record. 6. A data processing device for determining the operating time of a battery pack, characterized in that it comprises: An acquisition unit, configured to acquire a capacity value and a load current value of the battery pack, wherein the load current value is a current value obtained by testing the battery pack under a load condition; A determining unit, configured to determine the operational time of the battery pack according to the capacity value and the load current value. 7. The device according to claim 6, wherein the acquiring unit comprises: The first acquisition module is used to acquire the discharge test history data of the battery pack, wherein the discharge test history data is the electrical parameters measured during the discharge test of the battery pack; The first determination module is used to determine the discharge test data whose test time is closest to the current time in the discharge test historical data; A second determination module, configured to determine the capacity value of the battery pack according to the discharge test data. 8. The device according to claim 6, wherein the acquiring unit comprises: a second acquisition module, configured to acquire the current value of the battery pack; A judging module, configured to judge whether the battery pack is in the loading state according to the positive or negative of the current value of the battery pack; A first executing module, configured to determine that the battery pack is in the loading state if the current value of the battery pack is negative; A third acquiring module, configured to acquire the collected load current value of the battery pack when it is determined that the battery pack is in the loading state. 9. The device according to claim 8, wherein the determining unit comprises: A calculation module, configured to calculate the capacity value and the load current value according to a preset algorithm to obtain the runnable time of the battery pack; The second execution module is used for recording and displaying the runnable time. 10. The device of claim 9, wherein: The device further includes: a logic unit, configured to determine whether the battery pack is in the loaded state according to the positive or negative current value of the battery pack, and if the current value of the battery pack is positive, then judge The battery pack is not in the load condition, The determining unit includes: a reading module, configured to read the operable time of the storage battery pack in historical records and the corresponding recording time of each historical record; a third determining module, configured to determine the relationship between the recorded time and The latest record of the current time and determining the runable time in the record as the runnable time of the battery pack; a display module, configured to display the runnable time in the record.