Energy storage system, energy complementing method of energy storage system, storage medium and program product

Abstract

The invention relates to an energy storage system, an energy supplementing method of the energy storage system, a storage medium and a program product. The energy storage system comprises a controller, an energy supplementing circuit and at least one valve device. The valve device comprises a plurality of energy storage modules which are connected in series, each energy storage module comprises a power unit and an energy storage unit, the controller is connected with the energy supplementing circuit and each power unit, and the energy supplementing circuit is connected with the two ends of the valve device. In the embodiment of the invention, the energy storage system comprises the controller, the energy complementing circuit and the valve device, the controller is connected with the energy complementing circuit and each power unit, and the controller can input the to-be-complemented energy storage module which needs to be complemented and cut out other energy storage modules which do not need to be complemented based on each power unit. Therefore, the energy complementing circuit is controlled to charge the to-be-complemented energy storage module, the energy complementing device does not need to be manually utilized to charge the to-be-complemented energy storage module, and the energy complementing efficiency of the to-be-complemented energy storage module is improved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage systems, and in particular to an energy storage system, an energy replenishment method for an energy storage system, a storage medium, and a program product. Background Art

[0002] The energy storage system is composed of multiple energy storage modules, each of which is composed of a power unit and an energy storage unit, and each energy storage unit is composed of multiple batteries. Before the energy storage system is officially put into operation, due to the self-discharge of the energy storage unit, there are batteries with low SOC, which makes the SOC difference between the energy storage modules large or the SOC difference between the batteries of the same energy storage module large, resulting in the energy storage system being unable to be put into operation. Therefore, it is necessary to replenish the batteries with low SOC to achieve stable operation of the energy storage system.

[0003] Currently, batteries that need to be recharged are recharged manually by manually connecting a recharging device. However, the recharging method using manual recharging has the problem of low recharging efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide an energy storage system, an energy replenishment method of an energy storage system, a storage medium and a program product that can improve the energy replenishment efficiency in response to the above-mentioned technical problems.

[0005] In a first aspect, the present application provides an energy storage system, which includes a controller, an energy charging circuit and at least one valve device; the valve device includes a plurality of energy storage modules connected in series, and the energy storage module includes a power unit and an energy storage unit; the controller is respectively connected to the energy charging circuit and each of the power units, and the energy charging circuit is connected to both ends of the valve device.

[0006] In the technical solution of the embodiment of the present application, the energy storage system includes a controller, an energy replenishment circuit and at least one valve device; the valve device includes a plurality of energy storage modules connected in series, the energy storage modules include a power unit and an energy storage unit, the controller is respectively connected to the energy replenishment circuit and each power unit, and the energy replenishment circuit is connected to both ends of the valve device. In the embodiment of the present application, the energy storage system includes a controller, an energy replenishment circuit and a valve device, the controller is respectively connected to the energy replenishment circuit and each power unit, and the controller can put in energy storage modules to be replenished and cut out other energy storage modules that do not need energy replenishment based on each power unit, thereby controlling the energy replenishment circuit to charge the energy storage modules to be replenished, and there is no need to manually use the energy replenishment device to charge the energy storage modules to be replenished, thereby improving the energy replenishment efficiency of the energy storage modules to be replenished. Moreover, since the energy storage system includes at least one valve device, and the valve device includes multiple energy storage modules, multiple energy storage modules can be replenished by controlling one energy replenishment circuit, thereby reducing the energy replenishment cost.

[0007] In one embodiment, the energy replenishment circuit includes an energy replenishment power supply, and the energy replenishment power supply is connected to two ends of the valve device.

[0008] In the technical solution of the embodiment of the present application, the energy replenishment circuit includes an energy replenishment power supply, and the energy replenishment power supply is connected to both ends of the valve device. In the embodiment of the present application, when the voltage at both ends of the energy storage module to be replenished is less than the voltage at both ends of the energy replenishment power supply, the energy storage module to be replenished can be charged by using the energy replenishment power supply, which simplifies the design of the energy replenishment circuit and reduces the energy replenishment cost.

[0009] In one embodiment, at least one valve device includes a tested valve device and a companion test valve device;

[0010] The first end of the energy supplement power supply is connected to the high-voltage end of the tested valve device and the high-voltage end of the accompanying test valve device;

[0011] The second end of the energy supplement power supply is connected to the low-pressure end of the tested valve device and the low-pressure end of the accompanying test valve device.

[0012] In the technical solution of the embodiment of the present application, at least one valve device includes a test valve device and a companion test valve device, the first end of the energy replenishment power supply is connected to the high-pressure end of the test valve device and the high-pressure end of the companion test valve device, and the second end of the energy replenishment power supply is connected to the low-pressure end of the test valve device and the low-pressure end of the companion test valve device. In the embodiment of the present application, the energy replenishment circuit is applied to both ends of the test valve device and the companion test valve device, the wiring method is simple, easy to operate, and the efficiency of energy replenishment is improved.

[0013] In one of the embodiments, the energy compensation circuit further includes a reactor, and the energy compensation power supply is connected to two ends of the valve device through the reactor.

[0014] In the technical solution of the embodiment of the present application, the energy replenishment circuit also includes a reactor, and the energy replenishment power supply is connected to both ends of the valve device through the reactor. In the embodiment of the present application, the energy replenishment circuit also includes a reactor, and when the voltage at both ends of the energy storage module to be replenished is greater than the voltage at both ends of the energy replenishment power supply, the energy storage module to be replenished can be charged by the energy replenishment power supply and the reactor at the same time, thereby improving the application scope of the energy replenishment circuit and improving the safety and stability of the energy replenishment of the energy replenishment circuit.

[0015] In one embodiment, the reactor includes a first reactor and a second reactor, and the energy compensation power supply is connected to the high-voltage end of the valve device through the first reactor, and is connected to the low-voltage end of the valve device through the second reactor.

[0016] In the technical solution of the embodiment of the present application, the reactor includes a first reactor and a second reactor, and the energy replenishment power supply is connected to the high voltage end of the valve device through the first reactor, and is connected to the low voltage end of the valve device through the second reactor. In the embodiment of the present application, by setting two reactors in the energy replenishment circuit, the voltage at both ends of the energy replenishment circuit can be quickly increased, thereby improving the energy replenishment efficiency.

[0017] In a second aspect, the present application provides a method for replenishing energy for an energy storage system, the method comprising:

[0018] Determine the energy storage module to be replenished from each energy storage module of the target valve device; the target valve device is a valve device in at least one valve device;

[0019] The energy replenishment circuit is controlled to charge the energy storage module to be replenished.

[0020] In the technical solution of the embodiment of the present application, the energy storage module to be replenished is determined from the energy storage modules of the target valve device, and the energy replenishment circuit is controlled to charge the energy storage module to be replenished. In the embodiment of the present application, the controller controls the energy replenishment circuit to charge the energy storage module to be replenished, and there is no need to manually connect multiple energy replenishment devices to charge the energy storage module to be replenished, thereby improving the energy replenishment efficiency and safety of the energy storage module to be replenished.

[0021] In one embodiment, controlling the energy replenishment circuit to charge the energy storage module to be replenished includes:

[0022] Control the energy storage module to be replenished to be in the on state, and control other energy storage modules to be in the off state, and control the energy replenishment circuit to charge the energy storage module to be replenished;

[0023] Among them, other energy storage modules include energy storage modules other than the energy storage module to be replenished among the multiple energy storage modules.

[0024] In the technical solution of the embodiment of the present application, the energy storage module to be replenished is controlled to be in the input state, and the other energy storage modules are controlled to be in the cut-out state, and the energy replenishment circuit is controlled to charge the energy storage module to be replenished. In the embodiment of the present application, by controlling each energy storage module to be in a different state, the energy replenishment circuit is controlled to charge the energy storage module to be replenished in the energy storage module to be replenished. The energy replenishment method is simple, and there is no need to connect the energy replenishment circuit to each energy storage module to be replenished, thereby improving the energy replenishment efficiency of the energy storage module to be replenished.

[0025] In one embodiment, before controlling the energy replenishment circuit to charge the energy storage module to be replenished, the method further includes:

[0026] Control each energy storage module to be in a cut-out state, and control the energy replenishment power supply in the energy replenishment circuit to charge the reactor;

[0027] Controlling the energy replenishment circuit to charge the energy storage module to be replenished includes:

[0028] When the sum of the voltages of the energy replenishment power supply and the reactor is greater than the voltage across the energy storage module to be replenished, the energy replenishment power supply and the reactor are controlled to charge the energy storage module to be replenished.

[0029] In the technical solution of the embodiment of the present application, each energy storage module is controlled to be in a cut-out state, and the energy supply in the energy supply circuit is controlled to charge the reactor. When the sum of the voltages of the energy supply and the reactor is greater than the voltage at both ends of the energy storage module to be supplemented, the energy supply and the reactor are controlled to charge the energy storage module to be supplemented. In the embodiment of the present application, the energy storage module to be supplemented is charged by the energy supply and the reactor, so that the energy supply circuit can be applied to various test conditions of the valve device, thereby improving the flexibility of supplementing the energy storage module to be supplemented.

[0030] In one embodiment, the method further comprises:

[0031] In a case where the at least one valve device includes a tested valve device and a companion valve device, the tested valve device is determined as a target valve device.

[0032] In the technical solution of the embodiment of the present application, when at least one valve device includes a test valve device and a companion test valve device, the test valve device is determined as the target valve device, thereby determining the energy storage module to be replenished in the target valve device, which is more in line with the actual application of the valve device.

[0033] In a third aspect, the present application further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps provided in any one of the second aspects are implemented.

[0034] In a fourth aspect, the present application further provides a computer program product, including a computer program, which implements any of the steps provided in the second aspect when executed by a processor.

[0035] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0037] Figure 1 A first structural schematic diagram of an energy storage system provided in an embodiment of the present application;

[0038] Figure 2 A second structural schematic diagram of the energy storage system provided in an embodiment of the present application;

[0039] Figure 3 A third structural schematic diagram of the energy storage system provided in an embodiment of the present application;

[0040] Figure 4 A fourth structural schematic diagram of the energy storage system provided in an embodiment of the present application;

[0041] Figure 5 A fifth structural schematic diagram of the energy storage system provided in an embodiment of the present application;

[0042] Figure 6 is a sixth structural schematic diagram of the energy storage system provided in an embodiment of the present application;

[0043] Figure 7 is a seventh structural schematic diagram of the energy storage system provided in an embodiment of the present application;

[0044] Figure 8 An eighth structural schematic diagram of the energy storage system provided in an embodiment of the present application;

[0045] Fig. 9 It is a flow chart of the energy replenishment method of the energy storage system provided in the embodiment of the present application;

[0046] Fig.10 is a flow chart of an energy replenishment method for an energy storage system provided in another embodiment of the present application;

[0047] Fig.11 A ninth structural schematic diagram of an energy storage system provided in an embodiment of the present application;

[0048] Fig.12 A schematic diagram of a flow chart of an energy replenishment method for an energy storage system provided in another embodiment of the present application;

[0049] Fig.13 A schematic flow chart of a method for replenishing an energy storage system according to another embodiment of the present application.

[0050] Description of reference numerals:

[0051] 100. Energy storage system; 10. Controller; 20. Energy replenishment circuit;

[0052] 30. Valve device; 301. Power unit; 302. Energy storage unit;

[0053] 201. Energy supplement power supply; 202. Reactor. DETAILED DESCRIPTION

[0054] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0056] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0057] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0058] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0059] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0060] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0061] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0062] The energy storage system is composed of multiple energy storage modules, each of which is composed of a power unit and an energy storage unit, and each energy storage unit is composed of multiple batteries. Before the energy storage system is officially put into operation, due to the self-discharge of the energy storage unit, there are batteries with low SOC, which makes the SOC difference between the energy storage modules large or the SOC difference between the batteries of the same energy storage module large, resulting in the energy storage system being unable to be put into operation. Therefore, it is necessary to replenish the batteries with low SOC to achieve stable operation of the energy storage system.

[0063] Currently, batteries that need to be recharged are recharged manually by manually connecting a recharging device. However, the recharging method using manual recharging has the problem of low recharging efficiency.

[0064] In response to the above problems, the present application provides an energy storage system, an energy replenishment method for the energy storage system, a storage medium and a program product. The energy storage system includes a controller, an energy replenishment circuit and at least one valve device; the valve device includes a plurality of energy storage modules connected in series, the energy storage modules include a power unit and an energy storage unit, the controller is respectively connected to the energy replenishment circuit and each power unit, and the energy replenishment circuit is connected to both ends of the valve device. In the embodiment of the present application, the energy storage system includes a controller, an energy replenishment circuit and a valve device, the controller is respectively connected to the energy replenishment circuit and each power unit, and the controller can put in the energy storage modules to be replenished and cut out other energy storage modules that do not need to be replenished based on each power unit, thereby controlling the energy replenishment circuit to charge the energy storage modules to be replenished, and there is no need to manually use the energy replenishment device to charge the energy storage modules to be replenished, thereby improving the energy replenishment efficiency of the energy storage modules to be replenished. Moreover, since the energy storage system includes at least one valve device, and the valve device includes multiple energy storage modules, multiple energy storage modules can be replenished by controlling one energy replenishment circuit, thereby reducing the energy replenishment cost.

[0065] Figure 1 A first structural diagram of an energy storage system provided in an embodiment of the present application is shown in FIG. Figure 1As shown, the energy storage system 100 includes a controller 10, an energy charging circuit 20 and at least one valve device 30; the valve device 30 includes a plurality of energy storage modules connected in series, and the energy storage module includes a power unit 301 and an energy storage unit 302; the controller 10 is respectively connected to the energy charging circuit 20 and each power unit 301, and the energy charging circuit 20 is connected to both ends of the valve device 30.

[0066] In the embodiment of the present application, the energy storage system 100 includes a controller 10, an energy replenishment circuit 20 and at least one valve device 30. The valve device 30 may include a plurality of energy storage modules connected in series, namely, energy storage module SM1, energy storage module SM2, energy storage module SM3 and energy storage module SM4, each energy storage module includes a power unit 301 and an energy storage unit 302, and the power unit 301 and the energy storage unit 302 are connected in parallel. The controller 10 is connected to the energy replenishment circuit 20 and each power unit 301 respectively.

[0067] like Figure 1 As shown, the power unit 301 includes a capacitor C, which is connected in parallel with the energy storage unit 302. Before the power-on operation, the energy storage unit 302 charges the capacitor C. When the voltage across the energy storage unit 302 is equal to the voltage on the capacitor C, the energy storage module is powered on, so that no impact current is generated when the energy storage module is charged.

[0068] Optionally, the energy storage system 100 includes a controller 10, an energy replenishment circuit 20 and at least one valve device 30. Figure 1 As shown, Figure 1 The energy storage system 100 includes a valve device 30, and the energy replenishment circuit 20 is connected to both ends of the valve device 30. If the energy storage system 100 includes multiple valve devices 30, the multiple valve devices 30 are connected in parallel, and both ends of each valve device 30 are connected to the energy replenishment circuit 20. Figure 2 and Figure 3 As shown, Figure 2 A second structural diagram of the energy storage system provided in an embodiment of the present application, Figure 3 A third structural schematic diagram of the energy storage system provided in an embodiment of the present application. Figure 2 and Figure 3 Two valve devices are included.

[0069] The valve device 30 may be: Figure 1 The half-bridge topology shown in FIG. 1 can also be as follows: Figure 4-Figure 6 The full bridge topology diagram shown, Figure 4 A fourth structural diagram of the energy storage system provided in an embodiment of the present application, Figure 5 A fifth structural diagram of the energy storage system provided in an embodiment of the present application, Figure 6The sixth structural diagram of the energy storage system provided in the embodiment of the present application, that is, the energy storage module can be an energy storage module composed of a half-bridge module or an energy storage module composed of a full-bridge module. Both the half-bridge module and the full-bridge module can be based on a module composed of a DC capacitor and an insulated gate bipolar transistor (IGBT).

[0070] Optionally, the valve device 30 may be a valve tower or a container; multiple energy storage modules may be arranged up and down similarly to the valve tower, or multiple energy storage modules may be arranged in the container in a manner different from the valve tower.

[0071] Optionally, the energy replenishment circuit 20 may include only an energy replenishment power supply, or may include an energy replenishment power supply and a reactor. After the energy replenishment is completed, the energy replenishment circuit may be removed without affecting the subsequent use of the valve device.

[0072] Combination Figure 1 and Figure 4 The method of charging the energy storage module to be replenished is described, such as Figure 1 As shown, the valve device is a full-bridge topology diagram, such as Figure 4 As shown, the valve device is a half-bridge topology diagram. The preset state of charge threshold is the state of charge required for each energy storage module test.

[0073] After the power-on operation is completed, the controller compares the charge state of each energy storage module with the preset charge state threshold, and determines that the energy storage module with a charge state less than the preset charge state threshold is the energy storage module to be replenished according to the charge state of each energy storage module. Figure 1 and Figure 4 For illustration, the valve device 30 includes 4 energy storage modules, wherein the state of charge of the energy storage module SM3 is less than the preset state of charge threshold, and the energy storage module to be replenished is determined to be Figure 1 and Figure 4 Energy storage module SM3 in.

[0074] exist Figure 1 In the half-bridge topology shown in the figure, the controller 10 controls the upper bridge arm transistor of the energy storage module to be replenished to be turned on, and the lower bridge arm transistor of the energy storage module to be replenished to be turned off, so that the energy storage module to be replenished is in the input state. And the lower bridge arm transistors of other energy storage modules are controlled to be turned on, and the upper bridge arm transistors of other energy storage modules are turned off, so that other energy storage modules are in the cut-out state, thereby providing the energy storage module with the energy storage module to be replenished through the energy replenishment circuit 20. Figure 1 The energy storage module to be replenished in the energy storage module SM3 in the energy storage module SM3 is charged. Wherein, when the energy storage module to be replenished is the energy storage module SM3, the other batteries of the energy storage module to be replenished may include the remaining batteries in the batteries of the energy storage module SM3 except the energy storage module to be replenished.

[0075] exist Figure 4 In the full-bridge topology diagram shown in FIG. 1 , the controller 10 controls the left upper bridge arm transistor and the right lower bridge arm transistor of the energy storage module to be supplemented to be turned on at the same time, and the two upper bridge arm transistors of other energy storage modules are turned on at the same time, or the two lower bridge arm transistors of other energy storage modules are turned on at the same time, so that the energy storage module to be supplemented is in the input state, and the other energy storage modules are in the cut-out state, so as to provide the energy storage module to the energy storage module to be supplemented through the energy supplement circuit 20. Figure 4 The energy storage module to be replenished in the middle energy storage module SM3 is charged.

[0076] If a plurality of valve devices 30 are included, the transistors of other valve devices can be controlled to be in an off state, so as to replenish the energy storage module to be replenished in the target valve device that needs replenishment.

[0077] In the technical solution of the embodiment of the present application, the energy storage system includes a controller, an energy replenishment circuit and at least one valve device; the valve device includes a plurality of energy storage modules connected in series, the energy storage modules include a power unit and an energy storage unit, the controller is respectively connected to the energy replenishment circuit and each power unit, and the energy replenishment circuit is connected to both ends of the valve device. In the embodiment of the present application, the energy storage system includes a controller, an energy replenishment circuit and a valve device, the controller is respectively connected to the energy replenishment circuit and each power unit, and the controller can put in energy storage modules to be replenished and cut out other energy storage modules that do not need energy replenishment based on each power unit, thereby controlling the energy replenishment circuit to charge the energy storage modules to be replenished, and there is no need to manually use the energy replenishment device to charge the energy storage modules to be replenished, thereby improving the energy replenishment efficiency of the energy storage modules to be replenished. Moreover, since the energy storage system includes at least one valve device, and the valve device includes multiple energy storage modules, multiple energy storage modules can be replenished by controlling one energy replenishment circuit, thereby reducing the energy replenishment cost.

[0078] Figure 7 The seventh structural diagram of the energy storage system provided in the embodiment of the present application is as follows Figure 7 As shown, the energy replenishment circuit 30 includes an energy replenishment power supply 201 , and the energy replenishment power supply 201 is connected to two ends of the valve device 30 .

[0079] In this embodiment, if Figure 7 As shown, one end of the energy replenishment power supply 201 is connected to the high-voltage end of the valve device, and the other end is connected to the low-voltage end of the valve device, so as to start the energy replenishment power supply 201 to replenish the energy storage module to be replenished. In the technical solution of the embodiment of the present application, the energy replenishment circuit includes an energy replenishment power supply, and the energy replenishment power supply is connected to the two ends of the valve device. In the embodiment of the present application, when the voltage at both ends of the energy storage module to be replenished is less than the voltage at both ends of the energy replenishment circuit, the energy replenishment power supply can be used to charge the energy storage module to be replenished, which simplifies the design of the energy replenishment circuit and reduces the energy replenishment cost.

[0080] Combined with the above Figure 2As shown, at least one valve device 30 includes a tested valve device and a companion test valve device; the first end of the energy supplement power supply 201 is connected to the high pressure end of the tested valve device and the high pressure end of the companion test valve device; the second end of the energy supplement power supply 201 is connected to the low pressure end of the tested valve device and the low pressure end of the companion test valve device.

[0081] In this embodiment, at least one valve device 30 includes a tested valve device and a companion test valve device. Figure 2 As shown, assuming Figure 2 The left side is the tested valve device, and the right side is the accompanying tested valve device. The first end of the energy supply 201 is connected to the high pressure end of the tested valve device and the high pressure end of the accompanying tested valve device, and the second end of the energy supply 201 is connected to the low pressure end of the tested valve device and the low pressure end of the accompanying tested valve device.

[0082] The energy replenishment circuit 20 includes two reactors. The first end of the energy replenishment power supply 201 is connected to the high-voltage end of the tested valve device and the high-voltage end of the accompanying test valve device through the reactor, and the second end of the energy replenishment power supply 201 is connected to the low-voltage end of the tested valve device and the low-voltage end of the accompanying test valve device through the reactor.

[0083] In the technical solution of the embodiment of the present application, at least one valve device includes a test valve device and a companion test valve device, the first end of the energy replenishment power supply is connected to the high-pressure end of the test valve device and the high-pressure end of the companion test valve device, and the second end of the energy replenishment power supply is connected to the low-pressure end of the test valve device and the low-pressure end of the companion test valve device. In the embodiment of the present application, the energy replenishment circuit is applied to both ends of the test valve device and the companion test valve device, the wiring method is simple, easy to operate, and the efficiency of energy replenishment is improved.

[0084] Combined with the above Figure 7 As shown, the energy compensation circuit 20 further includes a reactor 202 , and the energy compensation power supply 201 is connected to both ends of the valve device 30 through the reactor 202 .

[0085] Optionally, the energy compensation circuit 20 may include one reactor 202, or two reactors 202. When the energy compensation circuit 20 includes one reactor 202, the reactor 202 may be arranged between the energy compensation power supply 201 and the high-voltage end of the valve device 30, or the reactor 202 may be arranged between the energy compensation power supply 201 and the low-voltage end of the valve device 30. When the energy compensation circuit 20 includes two reactors 202, namely the first reactor and the second reactor, the energy compensation power supply 201 is connected to the high-voltage end of the valve device through the first reactor, and the energy compensation power supply 201 is connected to the low-voltage end of the valve device through the second reactor. Figure 7 Schematic diagram of the structure of an energy storage system including two reactors 202 .

[0086] The energy replenishment power supply 201 is started, and a DC / DC conversion is formed through the characteristics of the reactor 202. The reactor 202 stores energy. This can be applied when the voltage across the energy replenishment power supply 201 is not less than the voltage across the energy storage module to be replenished. It can also be applied when the voltage across the energy replenishment power supply 201 is less than the voltage across the energy storage module to be replenished. The energy replenishment power supply 201 and the reactor are used to charge the energy storage module to be replenished at the same time.

[0087] In the technical solution of the embodiment of the present application, the energy replenishment circuit includes an energy replenishment power supply and a reactor, and the energy replenishment power supply is connected to the valve device through the reactor. In the embodiment of the present application, the energy replenishment circuit includes an energy replenishment power supply and a reactor, and when the voltage across the energy storage module to be replenished is greater than the voltage across the energy replenishment power supply, the energy storage module to be replenished can be charged by the energy replenishment power supply and the reactor at the same time, thereby improving the application scope of the energy replenishment circuit and improving the safety and stability of the energy replenishment of the energy replenishment circuit.

[0088] Figure 8 The eighth structural diagram of the energy storage system provided in the embodiment of the present application is as follows Figure 8 As shown, the reactor 202 includes a first reactor and a second reactor. The energy supply 201 is connected to the high-voltage end of the valve device 30 through the first reactor, and is connected to the low-voltage end of the valve device 30 through the second reactor.

[0089] In the embodiment of the present application, combined with the above Figure 7 For illustration, the reactor 202 includes a first reactor and a second reactor. The energy supply 201 is connected to the high voltage end of the valve device 30 through the first reactor, and the energy supply 201 is connected to the low voltage end of the valve device 30 through the second reactor.

[0090] In the technical solution of the embodiment of the present application, the reactor includes a first reactor and a second reactor, and the energy replenishment power supply is connected to the high voltage end of the valve device through the first reactor, and is connected to the low voltage end of the valve device through the second reactor. In the embodiment of the present application, by setting two reactors in the energy replenishment circuit, the voltage at both ends of the energy replenishment circuit can be quickly increased, thereby improving the energy replenishment efficiency.

[0091] Fig. 9 is a flow chart of the energy replenishment method of the energy storage system provided in the embodiment of the present application, such as Fig. 9 As shown, a method for replenishing energy of an energy storage system is provided, and the method is applied to Figure 1 The controller in the example is used to illustrate the following steps:

[0092] S901, determining an energy storage module to be replenished from each energy storage module of a target valve device; the target valve device is a valve device in at least one valve device.

[0093] Optionally, the target valve device may be any one of the at least one valve device. In the case where the at least one valve device includes a test valve device and a tested valve device, the target valve device may be the tested valve device.

[0094] In the embodiment of the present application, the state of charge of each energy storage module of the target valve device is compared with a preset state of charge threshold, and the energy storage module whose state of charge is less than the preset state of charge threshold is used as the energy storage module to be supplemented. Exemplarily, the target valve device includes energy storage modules SM1, SM2, SM3 and SM4, wherein the state of charge of the energy storage module SM3 is less than the preset state of charge threshold, and the energy storage module SM3 is the energy storage module to be supplemented.

[0095] S902, controlling the energy replenishment circuit to charge the energy storage module to be replenished.

[0096] In the embodiment of the present application, the energy storage module to be replenished can be controlled to be in the input state, and other energy storage modules can be controlled to be in the cut-out state, so as to control the energy replenishment circuit to charge the energy storage module to be replenished, which may include the following implementation methods:

[0097] In one possible implementation, if there are multiple energy storage modules to be replenished, illustratively, the charge states of energy storage module SM3 and energy storage module SM4 have preset charge state thresholds, and energy storage module SM3 can be first used as the energy storage module to be replenished, and energy storage module SM3 can be controlled to be in an on-state, and other energy storage modules can be controlled to be in a cut-out state. After the energy storage module SM3 is charged, if the average charge state of the batteries of the energy storage modules in the target valve device is greater than or equal to the preset charge state threshold, the charging of the energy storage modules to be replenished is stopped.

[0098] If the average state of charge of the energy storage module of the target valve device is less than the preset state of charge threshold, the energy storage module to be replenished in the target valve device is re-determined. If the re-determined energy storage module to be replenished is the energy storage module SM1 and the energy storage module SM4, the energy storage module SM1 can be first used as the energy storage module to be replenished, and the energy replenishment circuit can be controlled to charge the energy storage module SM1. After the energy storage module SM1 is charged, it is re-determined whether the average state of charge of the energy storage module of the target valve device is greater than or equal to the preset state of charge threshold. In the case where the average state of charge of the energy storage module of the target valve device is less than the preset state of charge threshold, the energy storage module to be replenished continues to be determined, and the newly determined energy storage module to be replenished is charged. In this way, the energy storage module to be replenished is determined repeatedly, and the energy storage module to be replenished is charged until the average state of charge of the energy storage module of the target valve device is greater than or equal to the preset state of charge threshold.

[0099] In another possible implementation, the energy storage module SM3 and the energy storage module SM4 can also be used as energy storage modules to be replenished at the same time, and the energy storage module SM3 and the energy storage module SM4 are controlled to be in the input state, and the other energy storage modules are controlled to be in the cut-out state, and the energy storage module SM3 and the energy storage module SM4 are charged. After the energy storage module SM3 and the energy storage module SM4 are charged, if the average state of charge of the energy storage module of the target valve device is greater than or equal to the preset state of charge threshold, the charging of the energy storage module to be replenished is stopped.

[0100] If the average state of charge of the energy storage module of the target valve device is less than the preset state of charge threshold, the energy storage module to be replenished is re-determined. If the re-determined energy storage module to be replenished is the energy storage module SM1 and the energy storage module SM4, the energy replenishment circuit is controlled to charge the energy storage module SM1 and the energy storage module SM4. After the energy storage module SM1 and the energy storage module SM4 are charged, it is further determined whether the average state of charge of the energy storage module of the target valve device is greater than or equal to the preset state of charge threshold. If the average state of charge of the energy storage module of the target valve device is less than the preset state of charge threshold, the energy storage module to be replenished is further determined. In this way, the energy storage module to be replenished of the target valve device is determined repeatedly, and the energy storage module to be replenished is charged until the average state of charge of the energy storage module of the target valve device is greater than or equal to the state of charge threshold.

[0101] In the technical solution of the embodiment of the present application, the energy storage module to be replenished is determined from the energy storage modules of the target valve device, and the energy replenishment circuit is controlled to charge the energy storage module to be replenished. In the embodiment of the present application, the controller controls the energy replenishment circuit to charge the energy storage module to be replenished, and there is no need to manually connect multiple energy replenishment devices to charge the energy storage module to be replenished, thereby improving the energy replenishment efficiency and safety of the energy storage module to be replenished.

[0102] An embodiment of the present application relates to a possible implementation method of how to control an energy replenishment circuit to charge an energy storage module to be replenished, including: controlling the energy storage module to be replenished to be in an on state, and controlling other energy storage modules to be in a cut-out state, and controlling the energy replenishment circuit to charge the energy storage module to be replenished; the other energy storage modules include energy storage modules other than the energy storage module to be replenished in multiple energy storage modules.

[0103] In the embodiment of the present application, combined with the above Figure 1 , control the energy storage module to be replenished, that is, control the upper bridge arm transistor of the energy storage module SM3 to be turned on, and control the lower bridge arm transistors of other energy storage modules to be turned on, so that the energy storage module to be replenished is in the input state, and other energy storage modules are in the cut-out state, thereby controlling the energy replenishment circuit to charge the energy storage module to be replenished.

[0104] In a possible implementation, combined with the above Figure 1, control the energy storage module to be replenished, that is, control the left upper bridge arm transistor and the right lower bridge arm transistor of the energy storage module SM3 to be turned on at the same time, control the two upper bridge arm transistors of other energy storage modules to be turned on at the same time, or control the two lower bridge arm transistors of other energy storage modules to be turned on at the same time, so that the energy storage module to be replenished is in the input state, and the other energy storage modules are in the cut-out state, thereby controlling the energy replenishment circuit to charge the energy storage module to be replenished.

[0105] In the technical solution of the embodiment of the present application, the energy storage module to be replenished is controlled to be in the input state, and the other energy storage modules are controlled to be in the cut-out state, and the energy replenishment circuit is controlled to charge the energy storage module to be replenished. In the embodiment of the present application, by controlling each energy storage module to be in a different state, the energy replenishment circuit is controlled to charge the energy storage module to be replenished in the energy storage module to be replenished. The energy replenishment method is simple, and there is no need to connect the energy replenishment circuit to each energy storage module to be replenished, thereby improving the energy replenishment efficiency of the energy storage module to be replenished.

[0106] Fig.10 FIG. 1 is a flow chart of a method for replenishing energy in an energy storage system provided in another embodiment of the present application. Fig.10 As shown, the embodiment of the present application relates to another implementation method of how to control the energy replenishment circuit to charge the energy storage module to be replenished, which may include the following steps:

[0107] S1001, control each energy storage module to be in a cut-out state, and control the energy replenishment power supply in the energy replenishment circuit to charge the reactor.

[0108] In the embodiments of the present application, Fig.11 To explain, Fig.11 The ninth structural diagram of the energy storage system provided in the embodiment of the present application is as follows Fig.11 As shown, the lower bridge arm transistors of each energy storage module are turned on to control each energy storage module to be in a cut-out state. When the AC current provided by the energy compensation power supply passes through the reactor, the inductance and capacitance of the reactor absorb and store electrical energy.

[0109] S1002, controlling the energy replenishment circuit to charge the energy storage module to be replenished, including: when the sum of the voltages of the energy replenishment power supply and the reactor is greater than the voltage across the energy storage module to be replenished, controlling the energy replenishment power supply and the reactor to charge the energy storage module to be replenished.

[0110] In an embodiment of the present application, when the sum of the voltages of the energy replenishment power supply and the reactor is greater than the voltage across the energy storage module to be replenished, the lower bridge arm transistor of the energy storage module to be replenished is controlled to be turned on, and the upper bridge arm transistors of other energy storage modules are turned on, so that the energy storage module to be replenished is in an on state, and the other energy storage modules are in a cut-out state, and the switch device corresponding to the energy storage module to be replenished is controlled to be turned on, and the switch devices of other batteries in the energy storage module to be replenished are disconnected, thereby controlling the energy replenishment power supply and the reactor to charge the energy storage module to be replenished.

[0111] In the technical solution of the embodiment of the present application, each energy storage module is controlled to be in a cut-out state, and the energy supply in the energy supply circuit is controlled to charge the reactor. When the sum of the voltages of the energy supply and the reactor is greater than the voltage at both ends of the energy storage module to be supplemented, the energy supply and the reactor are controlled to charge the energy storage module to be supplemented. In the embodiment of the present application, the energy storage module to be supplemented is charged by the energy supply and the reactor, so that the energy supply circuit can be applied to various test conditions of the valve device, thereby improving the flexibility of supplementing the energy storage module to be supplemented.

[0112] The embodiment of the present application relates to determining the test valve device as a target valve device when at least one valve device includes a test valve device and a companion test valve device.

[0113] In the embodiment of the present application, as mentioned above Figure 2 As shown, when at least one valve device includes a tested valve device and a companion tested valve device, the tested valve device is used as a target valve device, and an energy storage module to be supplemented is determined from the tested valve device.

[0114] In the technical solution of the embodiment of the present application, when at least one valve device includes a test valve device and a companion test valve device, the test valve device is determined as a target valve device.

[0115] Fig.12 A schematic diagram of a flow chart of a method for replenishing energy in an energy storage system provided in another embodiment of the present application is shown in FIG. Fig.12 As shown, the following steps are included:

[0116] S1201, determining an energy storage module to be replenished that needs to be replenished;

[0117] S1202, switching off other energy storage modules (i.e., only the lower bridge arm transistor is turned on);

[0118] S1203, controlling the energy storage module to be replenished to be put into operation (i.e., only the upper bridge arm transistor is turned on);

[0119] S1204, determining whether the average state-of-charge (SOC) of the energy storage module of the target valve device is greater than a preset SOC threshold.

[0120] In the embodiment of the present application, if the average SOC is greater than or equal to the preset SOC threshold, charging is stopped; if the average SOC is less than the first preset SOC threshold, step S1201 is executed to re-determine the energy storage module that needs to be replenished.

[0121] In the technical solution of the embodiment of the present application, the energy storage module to be replenished is determined from the energy storage module of the target valve device, and the energy replenishment circuit is controlled to charge the energy storage module to be replenished. In the embodiment of the present application, by controlling each energy storage module to be in different states, the energy replenishment circuit is controlled to charge the energy storage module to be replenished in the energy storage module to be replenished. The energy replenishment method is simple, and there is no need to manually connect multiple energy replenishment devices to charge the energy storage module to be replenished, thereby improving the energy replenishment efficiency and safety of the energy storage module to be replenished.

[0122] Fig.13 A schematic diagram of a flow chart of a method for replenishing energy in an energy storage system provided in another embodiment of the present application is shown in FIG. Fig.13 As shown, the following steps are included:

[0123] S1301, determining an energy storage module to be replenished that needs to be replenished;

[0124] S1302, switching off other energy storage modules (i.e., only the lower bridge arm transistor is turned on);

[0125] S1303, starting the energy supplement power supply to store energy in the reactor;

[0126] In the embodiment of the present application, when the sum of the voltage across the energy replenishment power supply and the voltage across the reactor is greater than the voltage across the energy storage module to be replenished, step S1304 is executed;

[0127] S1304, controlling the energy storage module to be replenished to be put into operation (i.e., only the upper bridge arm transistor is turned on);

[0128] S1305 , determining whether the average SOC of the energy storage module of the target valve device is greater than a preset SOC threshold.

[0129] In the embodiment of the present application, if the average SOC is greater than or equal to the preset SOC threshold, charging is stopped; if the average SOC is less than the preset SOC threshold, step S1301 is executed to re-determine the energy storage module that needs to be replenished.

[0130] In the technical solution of the embodiment of the present application, each energy storage module is controlled to be in a cut-out state, and the energy supply in the energy supply circuit is controlled to charge the reactor. When the sum of the voltages of the energy supply and the reactor is greater than the voltage at both ends of the energy storage module to be supplemented, the energy supply and the reactor are controlled to charge the energy storage module to be supplemented. In the embodiment of the present application, the energy storage module to be supplemented is charged by the energy supply and the reactor, so that the energy supply circuit can be applied to various test conditions of the valve device, thereby improving the flexibility of supplementing the energy storage module to be supplemented.

[0131] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0132] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0133] Determine the energy storage module to be replenished from each energy storage module of the target valve device; the target valve device is a valve device in at least one valve device;

[0134] The energy replenishment circuit is controlled to charge the energy storage module to be replenished.

[0135] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0136] The energy storage module to be replenished is controlled to be in the on state, and other energy storage modules are controlled to be in the off state, and the energy replenishment circuit is controlled to charge the energy storage module to be replenished; the other energy storage modules include energy storage modules other than the energy storage module to be replenished in the multiple energy storage modules.

[0137] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0138] Control each energy storage module to be in a cut-out state, and control the energy replenishment power supply in the energy replenishment circuit to charge the reactor;

[0139] Controlling the energy replenishment circuit to charge the energy storage module to be replenished includes:

[0140] When the sum of the voltages of the energy replenishment power supply and the reactor is greater than the voltage across the energy storage module to be replenished, the energy replenishment power supply and the reactor are controlled to charge the energy storage module to be replenished.

[0141] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0142] In a case where the at least one valve device includes a tested valve device and a companion valve device, the tested valve device is determined as a target valve device.

[0143] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0144] Determine the energy storage module to be replenished from each energy storage module of the target valve device; the target valve device is a valve device in at least one valve device;

[0145] The energy replenishment circuit is controlled to charge the energy storage module to be replenished.

[0146] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0147] The energy storage module to be replenished is controlled to be in the on state, and other energy storage modules are controlled to be in the off state, and the energy replenishment circuit is controlled to charge the energy storage module to be replenished; the other energy storage modules include energy storage modules other than the energy storage module to be replenished in the multiple energy storage modules.

[0148] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0149] Control each energy storage module to be in a cut-out state, and control the energy replenishment power supply in the energy replenishment circuit to charge the reactor;

[0150] Controlling the energy replenishment circuit to charge the energy storage module to be replenished includes:

[0151] When the sum of the voltages of the energy replenishment power supply and the reactor is greater than the voltage across the energy storage module to be replenished, the energy replenishment power supply and the reactor are controlled to charge the energy storage module to be replenished.

[0152] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0153] In a case where the at least one valve device includes a tested valve device and a companion valve device, the tested valve device is determined as a target valve device.

[0154] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0155] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An energy storage system, characterized in that: The energy storage system includes a controller, an energy replenishment circuit and at least one valve device; the valve device includes a plurality of energy storage modules connected in series, and the energy storage module includes a power unit and an energy storage unit; the controller is respectively connected to the energy replenishment circuit and each of the power units, and the energy replenishment circuit is connected to both ends of the valve device.

2. The energy storage system according to claim 1, characterized in that: The energy replenishment circuit includes an energy replenishment power supply, and the energy replenishment power supply is connected to two ends of the valve device.

3. The energy storage system according to claim 2, characterized in that: The at least one valve device comprises a tested valve device and a companion test valve device; The first end of the energy supplement power supply is connected to the high-voltage end of the tested valve device and the high-voltage end of the accompanying test valve device; The second end of the energy supplement power supply is connected to the low-pressure end of the tested valve device and the low-pressure end of the accompanying test valve device.

4. The energy storage system according to claim 3, characterized in that: The energy compensation circuit further includes a reactor, and the energy compensation power supply is connected to two ends of the valve device through the reactor.

5. The energy storage system according to claim 4, characterized in that: The reactor comprises a first reactor and a second reactor; The energy compensation power supply is connected to the high-voltage end of the tested valve device through the first reactor, and is connected to the low-voltage end of the tested valve device through the second reactor.

6. A method for replenishing energy in an energy storage system, characterized in that: The energy replenishment method is applied to the energy storage system according to any one of claims 1 to 5; the method comprises: Determine the energy storage module to be replenished from each energy storage module of the target valve device; the target valve device is a valve device in the at least one valve device; The energy replenishment circuit is controlled to charge the energy storage module to be replenished.

7. The method according to claim 6, characterized in that The controlling the energy replenishment circuit to charge the energy storage module to be replenished includes: Controlling the energy storage module to be replenished to be in an on-state, and controlling other energy storage modules to be in a cut-out state, and controlling the energy replenishment circuit to charge the energy storage module to be replenished; The other energy storage modules include energy storage modules other than the energy storage module to be replenished among the multiple energy storage modules.

8. The method according to claim 6 or 7, characterized in that: Before controlling the energy replenishment circuit to charge the energy storage module to be replenished, the method further includes: Controlling each of the energy storage modules to be in a cut-out state, and controlling the energy replenishment power supply in the energy replenishment circuit to charge the reactor; The controlling the energy replenishment circuit to charge the energy storage module to be replenished includes: When the sum of the voltages of the energy replenishment power supply and the reactor is greater than the voltage across the energy storage module to be replenished, the energy replenishment power supply and the reactor are controlled to charge the energy storage module to be replenished.

9. The method according to claim 6 or 7, characterized in that: The method further comprises: In a case where the at least one valve device includes a tested valve device and a companion valve device, the tested valve device is determined as the target valve device.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 6 to 9 are implemented.

11. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 6 to 9 are implemented.

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