Energy storage training aid
By combining simulated battery cells and control equipment, the problem of inconsistency between self-discharge and individual cells in energy storage training tools is solved, thereby improving safety and service life. At the same time, it provides high-precision voltage regulation and fault simulation functions to meet teaching needs.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-09
Smart Images
Figure CN2025124536_09072026_PF_FP_ABST
Abstract
Description
Energy storage training aids Cross-reference to related applications
[0001] This application claims priority to Chinese Patent Application No. 202423289073.5, entitled “Energy Storage Training Aid”, filed on December 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of battery technology, specifically to an energy storage training tool. Background Technology
[0003] As an emerging automotive industry, new energy vehicles have experienced rapid development in recent years; during this period, the demand for training personnel to adapt to this industry has also increased significantly. Technical training on batteries, as the core power source of new energy vehicles, is particularly important. Therefore, there is an urgent need to provide a battery training tool to facilitate students' battery learning and improve the teaching experience and quality.
[0004] Current energy storage training equipment generally uses physical battery cells for teaching. However, physical battery cells have issues with self-discharge characteristics and inconsistent discharge between individual cells. During long-term storage, professional personnel are required to perform timely maintenance. Otherwise, it can cause uneven distribution between individual cells, and in severe cases, it can lead to bulging, leakage, and other phenomena, which greatly reduces the safety and lifespan of the energy storage training equipment. Summary of the Invention
[0005] In view of the above problems, this application provides an energy storage training tool to solve the problems of low safety and short service life of current energy storage training tools that use physical battery cells.
[0006] In a first aspect, this application provides an energy storage training tool, which includes: an energy storage device, a control device, and a test panel; the energy storage device includes multiple battery packs, each battery pack including multiple simulated battery cells connected in series; the test panel includes a measurement terminal unit, both the measurement terminal unit and the control device are electrically connected to each simulated battery cell, and the measurement terminal unit is connected in parallel with the control device; the measurement terminal unit is used to connect to an external measurement device to collect electrical parameters between two target simulated battery cells connected to the external measurement device; the control device is used to control one or more target simulated battery cells in the energy storage device to simulate the output of the target demand voltage.
[0007] The energy storage training kit designed above uses simulated battery cells without injected electrolyte. The control equipment simulates the voltage of these cells, mimicking the voltage output of a physical battery cell. This effectively avoids the self-discharge characteristics and inconsistent discharge of physical cells. Long-term storage requires timely maintenance by professionals; otherwise, uneven cell distribution can occur, leading to bulging and leakage, significantly reducing the safety and lifespan of the energy storage training kit. This design reduces maintenance costs and improves the safety and lifespan of the energy storage training kit. Furthermore, the energy storage training kit features a test panel with pre-installed measurement terminals. Connecting external measuring devices to these terminals allows for the measurement of voltage parameters between any two simulated battery cells, achieving the purpose of measurement-based training.
[0008] In some embodiments, the energy storage device further includes a cooling unit and a control cabinet; the control cabinet is electrically connected to the cooling unit and the simulated battery cells of each battery pack, and the cooling unit is connected to each battery pack through cooling pipes; the control cabinet is used to control the cooling unit to cool the target battery pack through the cooling pipes and to acquire the voltage and temperature information of each simulated battery cell.
[0009] In the above-described implementation, this solution incorporates a control cabinet and a cooling unit within the energy storage device. This allows the cooling unit to promptly remove the heat generated by the battery pack during high-power discharge, thereby stabilizing parameters such as the battery's output voltage and current, and ultimately improving the reliability and safety of the battery system.
[0010] In some embodiments, the energy storage device further includes an energy storage product cabinet; the energy storage product cabinet includes multiple housing spaces, and multiple battery packs, cooling units and control cabinets are disposed in the multiple housing spaces.
[0011] In some embodiments, the control device includes an input device and a battery voltage simulation device; the battery voltage simulation device includes an isolation connection unit, a control unit, and a conversion output unit; the input terminal of the isolation connection unit is electrically connected to the input device, the output terminal of the isolation connection unit is electrically connected to the input terminal of the control unit, the output terminal of the control unit is electrically connected to the input terminal of the conversion output unit, and the output terminal of the conversion output unit is electrically connected to a simulated battery cell; the isolation connection unit is used to electrically isolate the control unit from the input device, and receive the target demand voltage signal transmitted by the input device, and transmit the target demand voltage signal to the control unit; the control unit is used to output a pulse modulation signal with a target duty cycle to the conversion output unit in response to the target demand voltage signal; wherein, the duty cycle of the pulse modulation signal corresponding to different demand voltage signals is different; the conversion output unit is used to convert the pulse modulation signal with the target duty cycle into a corresponding voltage simulation signal, the voltage simulation signal representing the target demand voltage simulated by the connected simulated battery cell.
[0012] The above implementation method stores the correlation between different demand voltage signals and their corresponding duty cycles in the control unit. Thus, when different demand voltage signals are received, a pulse modulation signal with the corresponding duty cycle of the demand voltage can be output based on the demand voltage signal. After digital-to-analog conversion of the pulse modulation signal, the output of the simulated battery voltage can be realized. Furthermore, different simulated battery voltages can be adjusted by using pulse modulation signals with different duty cycles. This enables high-precision simulation and adjustment of battery voltage, meeting the needs of various application scenarios with high requirements for battery voltage accuracy, such as teaching experiments.
[0013] In some embodiments, the conversion output unit includes at least one digital-to-analog converter (DAC) group; wherein each DAC group includes a DAC and an operational amplifier, the input terminal of the DAC in each DAC group is electrically connected to the output terminal of the control unit, the output terminal of the DAC in each DAC group is connected to the input terminal of the operational amplifier in the corresponding DAC group, and the output terminal of each operational amplifier is used to be electrically connected to an analog battery cell; the DAC is used to convert the pulse modulation signal of the target duty cycle into a corresponding analog voltage signal and transmit it to the operational amplifier; the operational amplifier is used to amplify the analog voltage signal and output it so that the corresponding connected analog battery cell outputs the target required voltage.
[0014] In some embodiments, there are multiple digital-to-analog converter groups; each digital-to-analog converter group is connected to a corresponding analog battery cell.
[0015] In the above implementation scheme, the control unit is designed to connect to multiple analog-to-digital converters at one time, so that one control unit can perform analog adjustment of the voltage of multiple analog battery cells at one time. In this way, when sampling multiple analog battery cells for voltage simulation, the device distribution space is reduced and the device resource cost is saved.
[0016] In some embodiments, the control device further includes a display control unit, a storage unit, and a display device; the display control unit is electrically connected to the input device, the storage unit, and the display device respectively; the display control unit is used to respond to a circuit diagram query request input by the input device, obtain the circuit topology diagram of the energy storage device stored in the storage unit, and display the circuit topology diagram of the energy storage device on the display device; wherein, the storage unit pre-stores the circuit topology diagram of the energy storage device.
[0017] In the above embodiment, the storage unit stores a circuit topology diagram that matches the physical energy storage device. During the teaching process, the circuit topology diagram can be displayed through the control device, thereby facilitating the teaching and analysis of the circuit topology diagram.
[0018] In some embodiments, the measurement terminal unit includes a plurality of measurement terminals; each measurement terminal is electrically connected to a corresponding analog battery cell via a measurement line.
[0019] In some embodiments, the test panel further includes a fault setting unit; the fault setting unit includes a plurality of fault terminals, and each analog battery cell and the control device are provided with a fault terminal on the circuit connection line; the fault terminal is used to connect the corresponding analog battery cell and the control device when it is closed, and to disconnect the corresponding analog battery cell and the control device when it is open.
[0020] In the above-described implementation, this solution, through the setting of fault terminals, allows the designed energy storage training aid to be equipped with multiple fault types, providing a comprehensive range of fault types to meet teaching needs and closely resemble real-world work cases. Furthermore, the difficulty of the assessment can be appropriately adjusted according to the different teaching objects and content.
[0021] In some embodiments, the test panel further includes a stand, the stand including a first panel and a second panel opposite to the first panel, a measurement terminal unit disposed on the first panel, and a fault setting unit disposed on the second panel.
[0022] In the above implementation, this solution can label the name and pin number of the simulated battery cell corresponding to each measurement terminal on the first panel, and can also label each fault terminal on the fault setting unit of the second panel accordingly, thereby achieving consistency with the actual object and the original circuit diagram, which facilitates quick search and circuit analysis and improves training efficiency.
[0023] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0025] Figure 1 is a schematic diagram of the first structure of the energy storage training tool provided in the embodiment of this application;
[0026] Figure 2 is a schematic diagram of the second structure of the energy storage training tool provided in the embodiment of this application;
[0027] Figure 3 is a schematic diagram of the third structure of the energy storage training tool provided in the embodiment of this application;
[0028] Figure 4 is a schematic diagram of the fourth structure of the energy storage training tool provided in the embodiment of this application;
[0029] Figure 5 is a schematic diagram of the fifth structure of the energy storage training tool provided in the embodiment of this application;
[0030] Figure 6 is a schematic diagram of the sixth structure of the energy storage training tool provided in the embodiment of this application;
[0031] Figure 7 is a schematic diagram of the seventh structure of the energy storage training tool provided in the embodiment of this application;
[0032] Figure 8 is a schematic diagram of the eighth structure of the energy storage training tool provided in the embodiment of this application.
[0033] Icons: 10-Energy storage device; 110-Battery pack; 110A-Simulated battery cell; 120-Cooling unit; 130-Control cabinet; 140-Energy storage product cabinet; 1410-Accommodation space; 20-Control device; 210-Input device; 220-Battery voltage simulation device; 2210-Isolation connection unit; 2220-Control unit; 2230-Conversion output unit; 22310-Digital-to-analog converter group; 223110-Digital-to-analog converter; 223120-Operative amplifier; 230-Display control unit; 240-Storage unit; 250-Display device; 30-Test panel; 310-Measurement terminal unit; 3110-Measurement terminal; 320-Fault setting unit; 3210-Fault terminal; 330-Bench; 3310-First panel; 3320-Second panel. Detailed Implementation
[0034] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0036] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0038] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0039] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0040] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0042] As an emerging automotive industry, new energy vehicles have experienced rapid development in recent years; during this period, the demand for training personnel to adapt to this industry has also increased significantly. Technical training on batteries, as the core power source of new energy vehicles, is particularly important. Therefore, there is an urgent need to provide a battery training tool to facilitate students' battery learning and improve the teaching experience and quality.
[0043] Current energy storage training equipment generally uses physical battery cells for teaching. However, physical battery cells have issues with self-discharge characteristics and inconsistent discharge between individual cells. During long-term storage, professional personnel are required to perform timely maintenance. Otherwise, it can cause uneven distribution between individual cells, and in severe cases, it can lead to bulging, leakage, and other phenomena, which greatly reduces the safety and lifespan of the energy storage training equipment.
[0044] To address the aforementioned issues, this application designs an energy storage training tool that uses simulated battery cells without injected electrolyte. By controlling the voltage of these simulated battery cells, the voltage output of a physical battery cell is simulated, effectively avoiding the self-discharge characteristics and inconsistent discharge of physical cells. Long-term storage requires timely maintenance by professionals; otherwise, uneven cell distribution can occur, leading to bulging, leakage, and significantly reduced safety and lifespan of the energy storage training tool. This design reduces maintenance costs and improves the safety and lifespan of the energy storage training tool. Furthermore, the designed energy storage training tool includes a test panel with pre-installed measurement terminals. Connecting external measuring devices to these terminals allows for the measurement of voltage parameters between any two simulated battery cells, achieving the purpose of measurement-based training. Additionally, the test panel includes a fault setting unit. Fault terminals in this unit allow operators to set various fault conditions, simulating energy storage product malfunctions.
[0045] Based on the above ideas, this application provides an energy storage training tool, as shown in Figure 1. The energy storage training tool includes an energy storage device 10, a control device 20, and a test panel 30. The energy storage device 10 includes multiple battery packs 110, and each battery pack 110 includes multiple simulated battery cells 110A connected in series. The test panel 30 includes a measurement terminal unit 310. The measurement terminal unit 310 and the control device 20 are both electrically connected to each simulated battery cell 110A. The measurement terminal unit 310 and the control device 20 are connected in parallel, that is, each simulated battery cell 110A is electrically connected to the measurement terminal unit 310 and the control device 20 in parallel.
[0046] The energy storage training aid designed above allows the control device 20 to control one or more target simulated battery cells in the energy storage device 10 to simulate the output of the target demand voltage. Specifically, the control device 20 can receive the target demand voltage input by the operator, and in response to the input target demand voltage signal, output a pulse modulation signal with the target duty cycle corresponding to the target demand voltage signal. After digital-to-analog conversion and amplification of the pulse modulation signal with the target duty cycle, the target demand voltage can be simulated and output. The target simulated battery cells from which the control device 20 simulates the output of the target demand voltage can be any one or any multiple simulated battery cells in the energy storage device 10. When controlling multiple simulated battery cells, the target demand voltages output by different simulated battery cells can be the same or different.
[0047] In the energy storage training tool, the measurement terminal unit 310 can be connected to an external measurement device A (not shown in the figure). The external measurement device A can connect two target simulated battery cells through the measurement terminal unit 310. Then, the external measurement device can collect the electrical parameters between the two connected target simulated battery cells. The two connected target simulated battery cells can be any two simulated battery cells 110A in the energy storage device 10, and the electrical parameters can be the voltage information between the two target simulated battery cells, etc. The external measurement device A can be any electrical measurement device, such as a multimeter, a voltage meter, etc.
[0048] The energy storage training tool designed above allows instructors to first use control device 20 to control multiple simulated battery cells 110A in energy storage device 10 to simulate different target required voltages. Then, instructors or students can use external measuring equipment to measure the electrical parameters between two different target simulated battery cells through the measuring terminal unit 310 of test panel 30, thereby achieving the purpose of training.
[0049] The energy storage training kit designed above uses simulated battery cells without injected electrolyte. The control equipment simulates the voltage of these cells, mimicking the voltage output of a physical battery cell. This effectively avoids the self-discharge characteristics and inconsistent discharge of physical cells. Long-term storage requires timely maintenance by professionals; otherwise, uneven cell distribution can occur, leading to bulging and leakage, significantly reducing the safety and lifespan of the energy storage training kit. This design reduces maintenance costs and improves the safety and lifespan of the energy storage training kit. Furthermore, the energy storage training kit features a test panel with pre-installed measurement terminals. Connecting external measuring devices to these terminals allows for the measurement of voltage parameters between any two simulated battery cells, achieving the purpose of measurement-based training.
[0050] In an optional embodiment of this scheme, as shown in Figure 2, the energy storage device 10 further includes a cooling unit 120 and a control cabinet 130. The control cabinet 130 is electrically connected to the cooling unit 120 and the simulated battery cells 110A of each battery pack 110. The cooling unit 120 is connected to each battery pack 110 through cooling pipes. Specifically, the cooling unit can be a water-cooled unit or other types of cooling units, such as an air-cooled unit or an evaporative cooling unit. The specific cooling method can be adapted to the actual application scenario.
[0051] The energy storage device 10 designed above includes a control cabinet 130 that can monitor and acquire the voltage and temperature information of each simulated battery cell 110A. Specifically, the control cabinet 130 can integrate a battery management system (BMS). A voltage sensor is installed between the BMS and each simulated battery cell, and a temperature sensor is installed around each simulated battery cell. In this way, the BMS acquires the voltage and temperature information of the simulated battery cells through the voltage and temperature sensors. Furthermore, the control cabinet 130 is electrically connected to a cooling unit 120, enabling control of the cooling unit 120. Specifically, the cooling unit 120 can be controlled to cool the target battery pack through cooling pipes. For example, if the control cabinet 130 detects that the temperature of a particular simulated battery cell or several simulated battery cells is high, the control cabinet 130 can control the cooling unit 120 to cool the battery pack containing the corresponding high-temperature simulated battery cell, thereby preventing the temperature from affecting the operation of the simulated battery cells or preventing fires caused by high temperatures.
[0052] In the above-described implementation, the solution includes a control cabinet and a cooling unit in the energy storage device 10. This allows the cooling unit to promptly remove the heat generated by the battery pack when the energy storage device is discharging at high power, making the battery's output voltage, current, and other parameters more stable, thereby improving the reliability and safety of the battery system.
[0053] In an optional embodiment of this scheme, as shown in Figure 3, the energy storage device designed in this scheme may further include an energy storage product cabinet 140. The energy storage product cabinet 140 includes multiple accommodating spaces 1410, and multiple battery packs 110, cooling units 120, and control cabinets 130 are disposed within the multiple accommodating spaces 1410. The component layout of the energy storage product cabinet designed in this scheme can be consistent with that of a physical energy storage device, thereby intuitively demonstrating the connection relationship of each assembly component, facilitating the analysis of the design and performance characteristics of battery series and parallel connections, locating the installation positions and characteristics of temperature and voltage sensors, and analyzing the detection principles of voltage and temperature data. For example, continuing to refer to Figure 3, the energy storage product cabinet 140 designed in this scheme can, like a physical energy storage device, include 10 accommodating spaces, with 8 battery packs. The cooling units 120 and control cabinets 130 are distributed in the two accommodating spaces on the left side of the energy storage product cabinet 140, and the 8 battery packs are distributed in the 8 accommodating spaces on the right side of the energy storage product cabinet 140.
[0054] In an optional embodiment of this invention, as shown in FIG4, the control device 20 designed in this scheme may include an input device 210 and a battery voltage simulation device 220. The battery voltage simulation device 220 includes an isolation connection unit 2210, a control unit 2220, and a conversion output unit 2230. The input terminal of the isolation connection unit 2210 is electrically connected to the input device 210, the output terminal of the isolation connection unit 2210 is electrically connected to the input terminal of the control unit 2220, the output terminal of the control unit 2220 is electrically connected to the input terminal of the conversion output unit 2230, and the output terminal of the conversion output unit 2230 is electrically connected to the simulated battery cell 110A.
[0055] The control device designed above, the isolation connection unit 2210 can also receive the demand voltage signal transmitted by the input device 210. The demand voltage signal can be input by the user operating the input device 210. The demand voltage signal represents a digital signal that requires the analog output voltage of the analog battery cell 110A. For example, the demand voltage signal is a digital signal with a voltage of 3V.
[0056] The isolation connection unit 2210 can transmit the demand voltage signal to the control unit 2220. In response to the demand voltage signal, the control unit 2220 outputs a pulse modulation signal with a target duty cycle to the conversion output unit 2230. The control unit 2220 stores the correlation between different demand voltage signals and their corresponding duty cycles. Different demand voltage signals correspond to different duty cycles in their pulse modulation signals. Upon receiving a demand voltage signal, the control unit 2220 can look up the target duty cycle corresponding to that demand voltage signal and then output the pulse modulation signal with that target duty cycle. As one possible implementation, the control unit 2220 may include a register in which the mapping relationship between different demand voltage signals and their corresponding duty cycles can be stored. The control unit 2220 can obtain the target duty cycle corresponding to the demand voltage signal by accessing the lookup register.
[0057] Specifically, this solution can store the combination of demand voltage and duty cycle (e.g., the higher bits represent the demand voltage and the lower bits represent the corresponding duty cycle) in a register in binary code form in advance. The control unit 2220 can find the combination in the register that is the same as the demand voltage signal (digital signal) based on the demand voltage signal, thereby obtaining the duty cycle of the lower bits in the combination, and thus obtaining the target duty cycle.
[0058] After the control unit 2220 outputs the pulse modulation signal of the target duty cycle, the conversion output unit 2230 can convert the pulse modulation signal of the target duty cycle into a corresponding voltage analog signal, thereby enabling the simulated battery cell 110A to simulate the output of the required voltage. Thus, this solution can use the input device 210 and the battery voltage simulation device 220 to make the simulated battery cell 110A simulate the output of different voltages, thereby simulating the battery cell under fault voltage and realizing teaching experiments for energy storage batteries. It should be noted that, when the required voltage signal is input, this solution can also select one or more simulated battery cells 110A that output the required voltage. Specifically, different simulated battery cells can be distinguished by different identifiers or numbers, and the operator can select the simulated battery cell based on the number or identifier.
[0059] In this embodiment, the isolation connection unit 2210 may specifically include a CAN module and an isolation driver chip. The isolation driver chip is electrically connected to the input device 210 through the CAN module. The control unit 2220 may specifically be any microcontroller or CPU, such as a microcontroller with model number STM32F103 or CS32F103.
[0060] As shown in Figure 5, the conversion output unit 2230 may include at least one digital-to-analog converter group 22310, wherein each digital-to-analog converter group 22310 includes a digital-to-analog converter 223110 and an operational amplifier 223120. The input terminal of the digital-to-analog converter 223110 of each digital-to-analog converter group 22310 is electrically connected to the output terminal of the control unit 2220. The output terminal of the digital-to-analog converter 223110 of each digital-to-analog converter group 22310 is connected to the input terminal of the operational amplifier 223120 of the corresponding digital-to-analog converter group 22310. The output terminal of each operational amplifier 223120 is used to be electrically connected to an analog battery cell 110A.
[0061] In the above embodiments, the digital-to-analog converter is a device that converts digital signals into analog signals. In this application, the digital-to-analog converter 223110 can convert the pulse modulation signal (digital signal) with the target duty cycle transmitted by the control unit 2220 into a corresponding voltage analog signal and transmit it to the corresponding operational amplifier 223120. The operational amplifier 223120 amplifies the voltage analog signal and outputs it, so that the analog battery cell 110A connected to the operational amplifier 223120 can output the required voltage.
[0062] In one possible implementation, the number of digital-to-analog converters 22310 can be one, as shown in Figure 4. In this case, the control unit 2220 designed in this scheme can be electrically connected to a single analog battery cell 110A through only one digital-to-analog converter 223110 and one operational amplifier 223120, thereby enabling the control unit 2220 to control the voltage simulation of only one analog battery cell 110A.
[0063] As another possible implementation, as shown in Figure 5, the number of digital-to-analog converter groups 22310 designed in this scheme can be multiple (4 as shown in Figure 5). In this case, the control unit 2220 designed in this scheme can connect 4 digital-to-analog converter groups 22310 at one time, so that the control unit 2220 can perform analog regulation of the voltage of 4 analog battery cells 110A at one time.
[0064] In the above implementation scheme, the control unit is designed to connect to multiple analog-to-digital converters at one time, so that one control unit can perform analog adjustment of the voltage of multiple analog battery cells at one time. In this way, when sampling multiple analog battery cells for voltage simulation, the device distribution space is reduced and the device resource cost is saved.
[0065] In addition, when the number of simulated battery cells set in this solution is large, in order to reduce the burden on the control unit 2220, this solution can set up multiple battery voltage simulation devices 220, and connect a certain number of simulated battery cells through each battery voltage simulation device 220, thereby realizing a simulation scenario of a large number of battery packs.
[0066] In an optional embodiment of this invention, as shown in FIG6, the control device 20 designed in this scheme further includes a display control unit 230, a storage unit 240, and a display device 250. The display control unit 230 is electrically connected to the input device 210, the storage unit 240, and the display device 250, respectively. The storage unit 240 stores the circuit topology diagram of the energy storage device in advance. The display control unit 230 can respond to the circuit diagram query request input by the input device 210, obtain the circuit topology diagram of the energy storage device stored in the storage unit 240, and display the circuit topology diagram of the energy storage device on the display device 250.
[0067] The control device designed above has a storage unit 240 that stores a circuit topology diagram that matches the physical energy storage device. During the teaching process, the control device 20 can display the circuit topology diagram, which facilitates the teaching and analysis of the circuit topology diagram.
[0068] In an optional embodiment of this invention, as shown in FIG7, the measurement terminal unit 310 may include multiple measurement terminals 3110. Each measurement terminal 3110 is electrically connected to a corresponding analog battery cell 110A via a measurement line. Different measurement terminals 3110 are connected to different analog battery cells 110A. Specifically, each measurement terminal 3110 may be electrically connected to one analog battery cell 110A via one measurement line, or each measurement terminal 3110 may be electrically connected to multiple analog battery cells 110A via multiple measurement lines. The test panel 30 in this design also includes a fault setting unit 320, which includes multiple fault terminals 3210. Each analog battery cell 110A and the control device 20 are connected via one fault terminal 3210. When the fault terminal 3210 is closed, it connects the corresponding analog battery cell to the control device 20; when it is open, it disconnects the corresponding analog battery cell from the control device 20.
[0069] The test panel 30 designed above allows operators to set faults by manipulating the fault terminal 3210. For example, this solution can disconnect the fault terminal to create an open circuit between the simulated battery cell 110A connected to the fault terminal and the control device 20. Alternatively, a short circuit can be created by connecting the fault terminal to other normally powered terminals with wires. Based on these fault settings, operators can further connect two different measuring terminals 3110 to an external measuring device A to perform electrical measurements between the two simulated battery cells. This allows them to obtain electrical information between the simulated battery cells under fault conditions, facilitating fault analysis and training. Of course, operators can also use the external measuring device A to measure the electrical information between the two simulated battery cells under normal operating conditions.
[0070] In the above-described implementation, this solution, through the setting of fault terminals, allows the designed energy storage training aid to be equipped with multiple fault types, providing a comprehensive range of fault types to meet teaching needs and closely resemble real-world work cases. Furthermore, the difficulty of the assessment can be appropriately adjusted according to the different teaching objects and content.
[0071] In an optional embodiment of this invention, as shown in FIG8, the test panel 30 designed in this scheme may further include a stand 330. The stand 330 may include a first panel 3310 and a second panel 3320. The measurement terminal unit 310 is disposed on the first panel 3310, and the fault setting unit 320 is disposed on the second panel 3320.
[0072] In the above-described implementation, the measurement terminal unit 310 on the first panel 3310 can be designed based on the actual energy storage cabinet and the original manufacturer's circuit diagram. Each measurement terminal on the first panel 3310 is labeled with the name and pin number of the corresponding simulated battery cell, ensuring consistency with the actual device and the original manufacturer's circuit diagram. This facilitates quick troubleshooting and circuit analysis, improving training efficiency. Similarly, each fault terminal 3210 in the fault setting unit 320 of the second panel 3320 can also be labeled with the name and pin number of the corresponding simulated battery cell, ensuring consistency with the actual device and the original manufacturer's circuit diagram. Furthermore, both the measurement terminal unit 310 on the first panel 3310 and the fault setting unit 320 on the second panel 3320 can be designed in a closed manner. This effectively prevents damage to personnel and equipment due to incorrect operation and avoids the need to locate fault points during training, reducing the difficulty of practical operation.
[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application 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 or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An energy storage training tool, characterized in that, The energy storage training aid includes: an energy storage device, a control device, and a test panel; the energy storage device includes multiple battery packs, each battery pack including multiple simulated battery cells connected in series; the test panel includes a measurement terminal unit; the measurement terminal unit and the control device are both electrically connected to each simulated battery cell, and the measurement terminal unit is connected in parallel with the control device; The measurement terminal unit is used to connect to an external measurement device to collect electrical parameters between two target simulated battery cells connected to the external measurement device. The control device is used to control one or more target simulated battery cells in the energy storage device to simulate the target required voltage output.
2. The energy storage training tool according to claim 1, characterized in that, The energy storage device also includes a cooling unit and a control cabinet; the control cabinet is electrically connected to the cooling unit and the simulated battery cells of each battery pack, and the cooling unit is connected to each battery pack through cooling pipes; The control cabinet is used to control the cooling unit to cool the target battery pack through cooling pipes and to acquire the voltage and temperature information of each simulated battery cell.
3. The energy storage training tool according to claim 2, characterized in that, The energy storage device also includes an energy storage product cabinet; the energy storage product cabinet includes multiple storage spaces, and the multiple battery packs, cooling units and control cabinets are arranged in the multiple storage spaces.
4. The energy storage training tool according to claim 1, characterized in that, The control device includes an input device and a battery voltage simulation device; the battery voltage simulation device includes an isolation connection unit, a control unit, and a conversion output unit. The input terminal of the isolation connection unit is electrically connected to the input device, the output terminal of the isolation connection unit is electrically connected to the input terminal of the control unit, the output terminal of the control unit is electrically connected to the input terminal of the conversion output unit, and the output terminal of the conversion output unit is electrically connected to the analog battery cell. The isolation connection unit is used to electrically isolate the control unit from the input device, and to receive the target demand voltage signal transmitted by the input device and transmit the target demand voltage signal to the control unit; The control unit is used to output a pulse modulation signal with a target duty cycle to the conversion output unit in response to the target demand voltage signal; wherein, the duty cycle of the pulse modulation signal is different for different demand voltage signals; The conversion output unit is used to convert the pulse modulation signal of the target duty cycle into a corresponding voltage analog signal, which represents the target required voltage of the analog output of the connected analog battery cell.
5. The energy storage training tool according to claim 4, characterized in that, The conversion output unit includes at least one digital-to-analog converter group; wherein, each digital-to-analog converter group includes a digital-to-analog converter and an operational amplifier, the input terminal of the digital-to-analog converter of each digital-to-analog converter group is electrically connected to the output terminal of the control unit, the output terminal of the digital-to-analog converter of each digital-to-analog converter group is connected to the input terminal of the operational amplifier of the corresponding digital-to-analog converter group, and the output terminal of each operational amplifier is used to be electrically connected to an analog battery cell. The digital-to-analog converter is used to convert the pulse modulation signal of the target duty cycle into a corresponding voltage analog signal and transmit it to the operational amplifier; The operational amplifier is used to amplify the analog voltage signal and output it so that the corresponding connected analog battery cell outputs the target required voltage.
6. The energy storage training tool according to claim 5, characterized in that, There are multiple digital-to-analog converter groups; each digital-to-analog converter group is connected to a corresponding analog battery cell.
7. The energy storage training tool according to claim 4, characterized in that, The control device further includes a display control unit, a storage unit, and a display device; the display control unit is electrically connected to the input device, the storage unit, and the display device, respectively. The display control unit is used to respond to a circuit diagram query request input by the input device, obtain the circuit topology diagram of the energy storage device stored in the storage unit, and display the circuit topology diagram of the energy storage device in the display device; wherein, the storage unit pre-stores the circuit topology diagram of the energy storage device.
8. The energy storage training tool according to claim 1, characterized in that, The measurement terminal unit includes multiple measurement terminals; each measurement terminal is electrically connected to a corresponding analog battery cell via a measurement line.
9. The energy storage training tool according to claim 1, characterized in that, The test panel also includes a fault setting unit; the fault setting unit includes multiple fault terminals, and each simulated battery cell is provided with a fault terminal on the circuit connection line between the control device and the simulated battery cell. The fault terminal is used to connect the corresponding analog battery cell and the control device when it is closed, and to disconnect the corresponding analog battery cell and the control device when it is open.
10. The energy storage training tool according to claim 9, characterized in that, The test panel also includes a stand, which includes a first panel and a second panel opposite to the first panel. The measurement terminal unit is disposed on the first panel, and the fault setting unit is disposed on the second panel.