Battery aging test method, control terminal, and storage medium

Abstract

The application provides a battery aging test method, a control terminal and a storage medium. The method is applied to a power supply system; the power supply system comprises a battery module to be tested, a first type of load connected with the battery module to be tested and a power module; the first type of load is a continuous power load; the power module comprises an energy storage unit and / or a load unit; the method comprises the following steps: obtaining required power of the first type of load and test power of the battery module to be tested, subtracting the required power of the first type of load from the test power of the battery module to be tested to obtain a first power difference value, and controlling the power module to work according to the first power difference value. In the application, the battery module to be tested is used to supply power for the first type of load which needs to be powered, and the power module is used to supplement the difference, so that the battery module to be tested can be tested at a constant power, and the stable power supply of the first type of load is ensured, and the utilization rate of energy is improved.

Description

Technical Field

[0001] This invention relates to the field of power supply technology, and in particular to a battery aging test method, control terminal, and storage medium. Background Technology

[0002] UPS (Uninterruptible Power Supply) is a type of uninterruptible power supply containing energy storage devices (batteries), primarily used to provide stable power to equipment with high power stability requirements. When the mains power is interrupted, the UPS is powered by batteries to provide uninterrupted power to the load. See [link to specific structure] for details. Figure 1 To ensure the quality of UPS, necessary aging tests need to be conducted during the production process.

[0003] In existing technologies, UPS systems are typically connected to a load for aging tests. When aging tests are conducted on the batteries in a UPS, the batteries supply power to the load through the inverter module. The battery discharge power is affected by and determined by the load, making it impossible to perform constant power discharge aging tests on the batteries. Summary of the Invention

[0004] This invention provides a battery aging test method, a control terminal, and a storage medium to solve the problem that the existing technology cannot perform constant power discharge aging tests on batteries in UPS.

[0005] In a first aspect, embodiments of the present invention provide a battery aging test method applied to a power system; the power system includes: a battery module under test, and a first type of load and a power module connected to the battery module under test; wherein, the first type of load is a continuously power-consuming load; the power module includes: an energy storage unit and / or a load unit; the method includes:

[0006] Obtain the required power of the first type of load and the test power of the battery module under test, and subtract the required power of the first type of load from the test power of the battery module under test to obtain the first power difference;

[0007] The control power module operates according to the first power difference.

[0008] In a second aspect, embodiments of the present invention provide a control terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the battery aging test method provided in the first aspect or any possible implementation of the first aspect.

[0009] Thirdly, embodiments of the present invention provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the battery aging test method provided in the first aspect or any possible implementation thereof.

[0010] This invention provides a battery aging test method, a control terminal, and a storage medium. The method is applied to a power system; the power system includes: a battery module under test, a first type of load connected to the battery module under test, and a power module; wherein the first type of load is a continuously power-consuming load; the power module includes: an energy storage unit and / or a load unit; the method includes: acquiring the required power of the first type of load and the test power of the battery module under test, and subtracting the required power of the first type of load from the test power of the battery module under test to obtain a first power difference; controlling the power module to operate according to the first power difference. In this invention, the battery module under test supplies power to the first type of load requiring power maintenance, while the power module provides differential compensation, ensuring not only constant power discharge aging testing of the battery module under test but also stable power supply to the first type of load, thus improving energy utilization. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the connection structure for aging tests of UPS batteries in existing technology;

[0013] Figure 2 This is a flowchart illustrating the implementation of a battery aging test method provided in an embodiment of the present invention.

[0014] Figure 3 This is a schematic diagram of a power supply system provided in an embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the second power supply system provided in an embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the third power supply system provided in the embodiments of the present invention;

[0017] Figure 6 This is a schematic diagram of the fourth power supply system provided in the embodiments of the present invention;

[0018] Figure 7This is a schematic diagram of the structure of the fifth power supply system provided in the embodiments of the present invention;

[0019] Figure 8 This is a schematic diagram of the sixth power supply system provided in the embodiments of the present invention;

[0020] Figure 9 This is a schematic diagram of the structure of the seventh power supply system provided in the embodiments of the present invention;

[0021] Figure 10 This is a schematic diagram of the eighth power supply system provided in the embodiments of the present invention;

[0022] Figure 11 This is a schematic diagram of the ninth power supply system provided in the embodiments of the present invention;

[0023] Figure 12 This is a schematic diagram of the tenth power supply system provided in the embodiment of the present invention;

[0024] Figure 13 This is a schematic diagram of the battery aging test device provided in an embodiment of the present invention;

[0025] Figure 14 This is a schematic diagram of the control terminal provided in an embodiment of the present invention. Detailed Implementation

[0026] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0028] See Figure 2 It illustrates a flowchart of the battery aging test method provided in an embodiment of the present invention. The above method is applied to a power supply system, see reference... Figure 3 The power system includes: a battery module under test 11, a first type of load 12 connected to the battery module under test 11, and a power module 13; wherein, the first type of load 12 is a continuously powered load; the power module 13 includes: an energy storage unit and / or a load unit;

[0029] That is, the power module 13 may include only an energy storage unit, include both an energy storage unit and a load unit, or include only a load unit.

[0030] The entity executing the above method can be the power system controller, or other control terminals capable of controlling the various modules of the power system. For example, if the power system is a UPS, then the entity executing the method can be the UPS controller.

[0031] The above methods are detailed below:

[0032] S101: Obtain the required power of the first type of load 12 and the test power of the battery module 11 under test, and subtract the required power of the first type of load 12 from the test power of the battery module 11 under test to obtain the first power difference;

[0033] S102: Control power module 13 to operate according to the first power difference.

[0034] The first type of load 12 is a continuously powered load, and its power supply must be guaranteed to ensure that it operates according to the required power. Therefore, in this embodiment of the invention, the difference between the test power of the battery module under test 11 and the required power of the first type of load 12 is calculated to determine the difference that can guarantee the constant power test of the battery module under test 11 and the normal power supply of the first type of load 12. Then, the power module 13 is used to supplement the above-mentioned difference, which can guarantee both the constant power test of the battery under test and the normal power supply of the first type of load 12, thus improving power efficiency.

[0035] In one possible implementation, power module 13 includes a load unit; Reference Figure 4 The load unit may include: a second type of load 131; the second type of load 131 is connected to the battery module under test 11 and the first type of load 12 respectively; wherein, the power supply priority of the first type of load 12 is higher than the priority of the second type of load 131;

[0036] S102 includes:

[0037] S1021: Control the second type of load 131 to operate according to the first power difference;

[0038] Among them, the first power difference is greater than 0, and the first power difference is not greater than the required power of the second type of load 131.

[0039] In this embodiment of the invention, the power module 13 may only include a load unit, which includes a second type of load 131. The second type of load 131 is related to the first type of load 12 and is a non-power-guaranteed load, used to absorb the aforementioned power difference. For example, the first type of load 12 is a data center server, which continuously consumes power and requires power protection. The second type of load can be a fan, air conditioner, etc., related to the server, which does not continuously consume power and is only turned on under certain conditions, such as when the temperature is high.

[0040] In this embodiment of the invention, the first power difference is assumed to be greater than 0 and not greater than the power required by the second type of load 131.

[0041] It should be noted that a power conversion device (e.g., inverter, DC-DC converter, etc.) is also provided between the battery module 11 under test and the power module 13. Those skilled in the art should be aware of this, and it will not be described in detail here.

[0042] In one possible implementation, refer to Figure 5 The power module 13 may also include an energy storage unit; the energy storage unit may include: a power grid, an ACCDC 132 and a bypass 133; the power grid is connected to the battery module under test 11, the first type of load 12 and the second type of load 131 through the ACCDC 132; the power grid is also connected to the battery module under test 11, the first type of load 12 and the second type of load 131 through the bypass 133.

[0043] The above methods may also include;

[0044] S103: When an abnormality is detected in the battery module 11 under test, the control grid supplies power to the first type of load 12 and the second type of load 131 through AC-DC 132; or

[0045] S104: When an abnormality is detected in the battery module 11 under test, the control grid supplies power to the first type of load 12 and the second type of load 131 through a bypass.

[0046] In this embodiment of the invention, a power grid can also be set up so that when the battery module 11 under test is abnormal, the power grid can directly supply power to the first type of load 12 and the second type of load 131 through the bypass 133 or ACDC 132 without switching the power supply direction. The power supply can be quickly switched to supplement the power supply, avoiding power outages for the first type of load 12 and the second type of load 131. Especially for the first type of load 12 that needs to maintain power, the stability of the power supply is guaranteed.

[0047] In one possible implementation, refer to Figure 6 The power module 13 may also include an energy storage unit; the energy storage unit may include: a first energy storage sub-unit 134; the first energy storage sub-unit 134 is connected to the battery module 11 under test, the first type of load 12 and the second type of load 131 respectively;

[0048] S102 may also include:

[0049] S1022: Obtain the required power of the second type of load 131, and subtract the required power of the second type of load 131 from the first power difference to obtain the second power difference;

[0050] S1023: Control the second type of load 131 to operate according to the power requirements of the second type of load 131;

[0051] S1024: If the second power difference is greater than 0, control the first energy storage sub-unit 134 to charge according to the second power difference;

[0052] S1025: If the second power difference is not greater than 0, then control the first energy storage sub-unit 134 to discharge according to the absolute value of the second power difference.

[0053] In this embodiment of the invention, the power module 13 may simultaneously include an energy storage unit and a load unit. For Figure 3 In some cases, the second type of load 131 cannot bear the power difference. Therefore, in this embodiment of the invention, an energy storage unit is also provided to supplement the power difference that the second type of load 131 cannot bear.

[0054] For example, if the second power difference is greater than 0, the second type of load 131 cannot receive the power of the first power difference, so the first energy storage sub-unit 134 receives part of the energy.

[0055] If the second power difference is not greater than 0, it means that the first power difference is insufficient to support the second type of load 131. In this case, the first type of energy storage sub-unit will discharge to supplement the power difference, ensuring that both the first type of load 12 and the second type of load 131 can be stably powered.

[0056] For example, the first energy storage sub-unit 134 can be a battery. The battery replenishes the power difference through charging and discharging. The first type of load 12 can be powered by two power sources: the battery module under test 11 and the first energy storage sub-unit 134, ensuring a stable power supply to the load.

[0057] In one possible implementation, refer to Figure 7 The load unit may further include: a third type of load 135; the third type of load 135 is connected to the first type of load 12, the second type of load 131, the first energy storage subunit 134 and the battery module under test 11 respectively; wherein, the third type of load 135 is an energy-consuming load;

[0058] S102 may also include:

[0059] S1026: If the second power difference is greater than the rated power of the first energy storage subunit 134, then the rated power of the first energy storage subunit 134 is subtracted from the second power difference to obtain the third power difference;

[0060] S1027: Control the third type of load 135 to operate according to the third power difference.

[0061] In this embodiment of the invention, when the test power of the battery module under test 11 is large enough, and the combined power of the first type of load 12, the second type of load 131, and the first energy storage sub-unit 134 still cannot reach the test power, a third type of load 135 can be connected. The third type of load 135 is an energy-consuming load (such as a resistor), which consumes excess energy, ensuring that the battery module under test 11 can still guarantee constant power discharge aging test.

[0062] Furthermore, in another possible implementation, the power module 13 may simultaneously include: a second type of load 131, a third type of load 135, a first energy storage subunit 134, a power grid, an AC / DC converter 132, and a bypass 133, as detailed in the following reference. Figure 8 .

[0063] The second type of load 131, the third type of load 135 and the first energy storage sub-unit 134 are used to supplement the first power difference, and the power grid is used for backup power supply. This can ensure constant power testing of the battery module 11 under test, and at the same time effectively guarantee the power supply stability of the power system and improve the performance of the power system.

[0064] The control of the second type of load 131, the third type of load 135 and the first energy storage subunit 134 can be set according to actual application requirements, and will not be elaborated here.

[0065] In one possible implementation, power module 13 may include an energy storage unit; see reference. Figure 9 The energy storage unit may include: a second energy storage subunit 136; the second energy storage subunit 136 is connected to the first type of load 12 and the battery module under test 11 respectively;

[0066] S102 may include:

[0067] S1028: Control the second energy storage sub-unit 136 to charge according to the first power difference;

[0068] Among them, the first power difference is greater than 0, and the first power difference is not greater than the rated power of the second energy storage sub-unit 136.

[0069] When there is no second type of load 131 that requires power, the power module 13 may also contain only the energy storage unit, and the first power difference is entirely supplemented by the second energy storage sub-unit 136.

[0070] Furthermore, if the first power difference is less than 0, the second energy storage sub-unit 136 can be controlled to discharge according to the absolute value of the first power difference to supplement the power supply to the first type of load 12. The first type of load 12 is powered by multiple sources to ensure the stable power supply to the first type of load 12.

[0071] In one possible implementation, refer to Figure 10The energy storage unit may also include: a power grid and a first bidirectional ACCDC137; the power grid is connected to the first type of load 12, the second energy storage sub-unit 136 and the battery module under test 11 through the first bidirectional ACCDC137;

[0072] S102 may also include:

[0073] S1029: Control the second energy storage sub-unit 136 to charge according to the rated power of the second energy storage sub-unit 136;

[0074] S10210: Subtract the rated power of the second energy storage subunit 136 from the first power difference to obtain the fourth power difference;

[0075] S10211: If the fourth power difference is greater than 0, control the first bidirectional ACCDC137 to supply power to the grid according to the fourth power difference;

[0076] S10212: If the fourth power difference is not greater than 0, the control grid discharges through the first bidirectional ACCDC137 according to the absolute value of the fourth power difference.

[0077] In this embodiment of the invention, the ACCDC132 in the traditional UPS can be replaced with a bidirectional ACCDC132, so that the power grid can not only supply power to the back end (first type of load 12, second type of load 131, etc.), but also accept the excess energy of the test battery module 11.

[0078] For example, the fourth power difference is obtained by subtracting the rated power of the second energy storage sub-unit 136 from the first power difference. If the fourth power difference is greater than 0, it means that during the constant power discharge aging test of the battery module 11 under test, it can not only ensure the normal operation of the first type of load 12, but also ensure that the second energy storage sub-unit 136 is charged at its rated power, and there may even be surplus. In this case, the first bidirectional ACCDC 137 can be controlled to be in inverter mode, and the remaining energy can be supplied to the grid to avoid energy waste and improve the utilization rate of energy. If the fourth power difference is not greater than 0, it means that the test power of the battery module 11 under test is insufficient to simultaneously ensure that the first type of load 12 and the second energy storage sub-unit 136 are charged at their rated charging power. At this time, the first bidirectional ACCDC137 can be controlled to be in rectification state, and the grid provides supplementary power supply. This can simultaneously ensure the normal operation of the first type of load 12 and the charging of the second energy storage sub-unit 136 according to the rated power. This ensures that the second energy storage sub-unit 136 has enough energy to discharge and support the normal power supply of the first type of load 12 when the grid is abnormal. The load is powered by multiple sources, including the second energy storage sub-unit 136, the grid, and the battery module under test 11, which ensures the stability of the power supply system.

[0079] In one possible implementation, power module 13 may include an energy storage module, as referenced. Figure 11The energy storage module may include: a power grid and a second bidirectional ACCDC138; the power grid is connected to the first type of load 12 and the battery module under test 11 through the second bidirectional ACCDC138;

[0080] S102 may include:

[0081] S10213: If the first power difference is greater than 0, control the battery module under test 11 to supply power to the grid through the second bidirectional ACDC138 according to the first power difference;

[0082] S10214: If the first power difference is not greater than 0, the control grid supplies power to the first type of load 12 through the second bidirectional ACCDC138 according to the absolute value of the first power difference.

[0083] Since the power grid can absorb and release energy indefinitely, in this embodiment of the invention, the power grid can be configured to supplement only the first power difference. When the first power difference is greater than 0, the power grid absorbs the remaining energy; when the first power difference is not greater than 0, the power grid supplements the energy difference, ensuring the constant power discharge aging test of the battery module 11 under test and the stable power supply of the first type of load 12.

[0084] In a further embodiment, the power module 13 may simultaneously include: a second type of load 131, a third type of load 135, a second energy storage sub-unit 136, a power grid, a second bidirectional AC-CDC 138, and a bypass 133, as referenced. Figure 12 The second type of load 131, the third type of load 135, the power grid, and the second energy storage sub-unit 136 can consume excess energy. Simultaneously, the power grid and the second energy storage sub-unit 136 can also release energy to supplement the energy supply when the test power of the battery module under test 11 is insufficient, ensuring that the battery module under test can undergo constant power discharge aging testing. Multi-source power supply ensures the power supply stability of the first type of load while improving energy utilization. Specific control methods will not be detailed here and can be set according to actual application requirements.

[0085] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0086] The following are device embodiments of the present invention. For details not described in detail, please refer to the corresponding method embodiments described above.

[0087] Figure 13 A schematic diagram of the battery aging test apparatus provided in an embodiment of the present invention is shown. (Applied to...) Figure 3The power system shown includes: a battery module under test 11, a first type of load 12 connected to the battery module under test 11, and a power module 13; wherein, the first type of load 12 is a continuously power-consuming load; the power module 13 includes: an energy storage unit and / or a load unit; for ease of explanation, only the parts related to the embodiments of the present invention are shown, and are described in detail below:

[0088] Battery aging test equipment may include:

[0089] The difference determination module 21 is used to obtain the required power of the first type of load 12 and the test power of the battery module 11 under test, and subtract the required power of the first type of load 12 from the test power of the battery module 11 under test to obtain the first power difference value.

[0090] The power control module 22 is used to control the power module 13 to operate according to the first power difference.

[0091] In one possible implementation, the power module 13 may include a load unit; the load unit may include a second type of load 131; the second type of load 131 is connected to the battery module 11 under test and the first type of load 12 respectively; wherein, the power supply priority of the first type of load 12 is higher than the priority of the second type of load 131;

[0092] The power control module 22 may include:

[0093] The first control unit is used to control the second type of load 131 to operate according to the first power difference;

[0094] Among them, the first power difference is greater than 0, and the first power difference is not greater than the required power of the second type of load 131.

[0095] In one possible implementation, the power module 13 may further include an energy storage unit; the energy storage unit may include: a power grid, an ACCDC 132, and a bypass 133; the power grid is connected to the battery module under test 11, the first type of load 12, and the second type of load 131 through the ACCDC 132; the power grid is also connected to the battery module under test 11, the first type of load 12, and the second type of load 131 through the bypass 133.

[0096] The above-mentioned device may further include:

[0097] An anomaly control module is used to control the power grid to supply power to the first type of load 12 and the second type of load 131 through ACCDC132 when an anomaly is detected in the battery module under test 11; or to control the power grid to supply power to the first type of load 12 and the second type of load 131 through a bypass when an anomaly is detected in the battery module under test 11.

[0098] In one possible implementation, the power module 13 may further include an energy storage unit; the energy storage unit may include: a first energy storage sub-unit 134; the first energy storage sub-unit 134 is connected to the battery module under test 11, the first type of load 12 and the second type of load 131 respectively;

[0099] The power control module 22 may also include:

[0100] The first difference calculation unit is used to obtain the required power of the second type of load 131 and subtract the required power of the second type of load 131 from the first power difference to obtain the second power difference.

[0101] The second control unit is used to control the second type of load 131 to operate according to the power requirements of the second type of load 131.

[0102] The third control unit is used to control the first energy storage subunit 134 to charge according to the second power difference if the second power difference is greater than 0.

[0103] The fourth control unit is used to control the first energy storage subunit 134 to discharge according to the absolute value of the second power difference if the second power difference is not greater than 0.

[0104] In one possible implementation, the load unit may further include: a third type of load 135; the third type of load 135 is connected to the first type of load 12, the second type of load 131, the first energy storage subunit 134 and the battery module under test 11 respectively; wherein, the third type of load 135 is an energy-consuming load;

[0105] The power control module 22 may also include:

[0106] The second difference calculation unit is used to subtract the rated power of the first energy storage subunit 134 from the second power difference if the second power difference is greater than the rated power of the first energy storage subunit 134, so as to obtain the third power difference.

[0107] The fifth control unit is used to control the third type of load 135 to operate according to the third power difference.

[0108] In one possible implementation, the power module 13 may include an energy storage unit; the energy storage unit includes: a second energy storage sub-unit 136; the second energy storage sub-unit 136 is connected to the first type of load 12 and the battery module under test 11 respectively.

[0109] The power control module 22 may include:

[0110] The sixth control unit is used to control the second energy storage subunit 136 to charge according to the first power difference;

[0111] Among them, the first power difference is greater than 0, and the first power difference is not greater than the rated power of the second energy storage sub-unit 136.

[0112] In one possible implementation, the energy storage unit may further include: a power grid and a first bidirectional ACCDC 137; the power grid is connected to a first type of load 12, a second energy storage sub-unit 136 and a battery module under test 11 through the first bidirectional ACCDC 137.

[0113] The power control module 22 may also include:

[0114] The seventh control unit is used to control the second energy storage sub-unit 136 to charge according to the rated power of the second energy storage sub-unit 136;

[0115] The third difference calculation unit is used to subtract the rated power of the second energy storage subunit 136 from the first power difference to obtain the fourth power difference.

[0116] The eighth control unit is used to control the first bidirectional ACCDC137 to supply power to the grid according to the fourth power difference if the fourth power difference is greater than 0.

[0117] The ninth control unit is used to control the power grid to discharge according to the absolute value of the fourth power difference through the first bidirectional ACCDC137 if the fourth power difference is not greater than 0.

[0118] In one possible implementation, the power module 13 may include an energy storage module, which may include: a power grid and a second bidirectional ACCDC 138; the power grid is connected to the first type of load 12 and the battery module under test 11 through the second bidirectional ACCDC 138.

[0119] The power control module 22 may include:

[0120] The tenth control unit is used to control the battery module under test 11 to supply power to the grid through the second bidirectional ACDC138 according to the first power difference when the first power difference is greater than 0.

[0121] The eleventh control unit is used to control the power grid to supply power to the first type of load 12 through the second bidirectional ACCDC138 according to the absolute value of the first power difference when the first power difference is not greater than 0.

[0122] Figure 14 This is a schematic diagram of the control terminal 3 provided in an embodiment of the present invention. Figure 14 As shown, the control terminal 3 in this embodiment includes a processor 30 and a memory 31. The memory 31 is used to store a computer program 32, and the processor 30 is used to call and run the computer program 32 stored in the memory 31 to execute the steps in the various battery aging test method embodiments described above, for example... Figure 2The steps S101 to S102 are shown. Alternatively, the processor 30 is used to call and run the computer program 32 stored in the memory 31 to implement the functions of each module / unit in the above-described device embodiments, for example... Figure 13 The functions of modules 21 and 22 shown.

[0123] For example, computer program 32 can be divided into one or more modules / units, one or more of which are stored in memory 31 and executed by processor 30 to complete the present invention. One or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of computer program 32 in control terminal 3. For example, computer program 32 can be divided into... Figure 13 Modules / units 21 to 22 are shown.

[0124] The control terminal 3 can be a desktop computer, laptop, handheld computer, or cloud server, etc. The control terminal 3 may include, but is not limited to, a processor 30 and a memory 31. Those skilled in the art will understand that... Figure 14 This is merely an example of control terminal 3 and does not constitute a limitation on control terminal 3. It may include more or fewer components than shown, or combine certain components, or different components. For example, the terminal may also include input / output devices, network access devices, buses, etc.

[0125] The processor 30 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0126] The memory 31 can be an internal storage unit of the control terminal 3, such as a hard disk or RAM of the control terminal 3. The memory 31 can also be an external storage device of the control terminal 3, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card equipped on the control terminal 3. Furthermore, the memory 31 can include both internal and external storage units of the control terminal 3. The memory 31 is used to store computer programs and other programs and data required by the terminal. The memory 31 can also be used to temporarily store data that has been output or will be output.

[0127] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0128] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0129] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0130] In the embodiments provided by this invention, it should be understood that the disclosed devices / terminals and methods can be implemented in other ways. For example, the device / terminal embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0131] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0132] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0133] If an integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0134] Corresponding to the above embodiments, this application also provides a UPS, including the control terminal 3 and the battery module 11 under test provided in any of the above embodiments.

[0135] The control terminal 3 is used to control the constant power discharge aging test of the battery module 11 under test.

[0136] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A battery aging test method characterized by, The method is applied to a power supply system, and the power supply system comprises a battery module to be tested, a first type of load connected with the battery module to be tested, and a power module; the first type of load is a continuous power load; the power module comprises an energy storage unit and / or a load unit; the method comprises the following steps: obtaining a required power of the first type of load and a test power of the battery module to be tested, and subtracting the required power of the first type of load from the test power of the battery module to be tested to obtain a first power difference; controlling the power module to work according to the first power difference, and using the power module to make up the difference.

2. The battery aging test method according to claim 1, characterized by, The power module comprises the load unit; the load unit comprises a second type of load; the second type of load is connected with the battery module to be tested and the first type of load respectively; wherein the power supply priority of the first type of load is higher than the priority of the second type of load; the control of the power module working according to the first power difference comprises: controlling the second type of load to work according to the first power difference; wherein the first power difference is greater than 0, and the first power difference is not greater than the required power of the second type of load.

3. The battery aging test method according to claim 2, characterized by, The power module further comprises the energy storage unit; the energy storage unit comprises a power grid, an ACDC and a bypass; the power grid is connected with the battery module to be tested, the first type of load and the second type of load through the ACDC respectively; the power grid is further connected with the battery module to be tested, the first type of load and the second type of load through the bypass respectively; the method further comprises: when the battery module to be tested is detected to be abnormal, controlling the power grid to supply power to the first type of load and the second type of load through the ACDC; or when the battery module to be tested is detected to be abnormal, controlling the power grid to supply power to the first type of load and the second type of load through the bypass.

4. The battery aging test method according to claim 2, characterized by, The power module further comprises the energy storage unit; the energy storage unit comprises a first energy storage subunit; the first energy storage subunit is connected with the battery module to be tested, the first type of load and the second type of load respectively; the control of the power module working according to the first power difference further comprises: obtaining a required power of the second type of load, and subtracting the required power of the second type of load from the first power difference to obtain a second power difference; controlling the second type of load to work according to the required power of the second type of load; if the second power difference is greater than 0, controlling the first energy storage subunit to charge according to the second power difference; if the second power difference is not greater than 0, controlling the first energy storage subunit to discharge according to the absolute value of the second power difference.

5. The battery aging test method according to claim 4, characterized by, The load unit further comprises a third type of load; the third type of load is connected with the first type of load, the second type of load, the first energy storage subunit and the battery module to be tested respectively; wherein the third type of load is an energy consumption load; the control of the power module working according to the first power difference further comprises: if the second power difference is greater than the rated power of the first energy storage subunit, subtracting the rated power of the first energy storage subunit from the second power difference to obtain a third power difference; controlling the third type of load to work according to the third power difference.

6. The battery aging test method according to claim 1, characterized by, The power module comprises the energy storage unit; the energy storage unit comprises a second energy storage subunit; the second energy storage subunit is connected with the first type of load and the battery module to be tested respectively; controlling the power module to work according to the first power difference, comprising: controlling the second energy storage subunit to charge according to the first power difference; wherein the first power difference is greater than 0, and the first power difference is not greater than the rated power of the second energy storage subunit.

7. The battery aging test method according to claim 6, characterized by, The energy storage unit further comprises a power grid and a first bidirectional ACDC; the power grid is connected with the first type of load, the second energy storage subunit and the battery module to be tested through the first bidirectional ACDC; controlling the power module to work according to the first power difference, further comprising: controlling the second energy storage subunit to charge according to the rated power of the second energy storage subunit; subtracting the rated power of the second energy storage subunit from the first power difference to obtain a fourth power difference; if the fourth power difference is greater than 0, controlling the first bidirectional ACDC to supply power to the power grid according to the fourth power difference; if the fourth power difference is not greater than 0, controlling the power grid to discharge through the first bidirectional ACDC according to the absolute value of the fourth power difference.

8. The battery aging test method of claim 1, wherein, The power module comprises the energy storage unit, and the energy storage unit comprises a power grid and a second bidirectional ACDC; the power grid is connected with the first type of load and the battery module to be tested through the second bidirectional ACDC; controlling the power module to work according to the first power difference, comprising: if the first power difference is greater than 0, controlling the battery module to be tested to supply power to the power grid through the second bidirectional ACDC according to the first power difference; if the first power difference is not greater than 0, controlling the power grid to supply power to the first type of load through the second bidirectional ACDC according to the absolute value of the first power difference.

9. A control terminal, characterized by comprising: comprising a processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to execute the steps of the battery aging test method according to any one of claims 1 to 8.

10. A computer-readable storage medium storing a computer program, the computer program comprising instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 9. The computer program is executed by the processor to implement the steps of the battery aging test method according to any one of claims 1 to 8.

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