Rapid detection method and system for energy storage equipment

Abstract

The invention provides a rapid detection method and system for energy storage equipment, and relates to the technical field of batteries. The rapid detection method of the energy storage device is used for detecting the trickle charging function of the energy storage device. The rapid detection method comprises the steps of obtaining an electric quantity parameter of the energy storage equipment in real time; controlling the energy storage equipment to discharge according to the electric quantity parameter; when the electric quantity parameter is in the trickle charging range, controlling the energy storage equipment to charge; when the energy storage equipment is charged, acquiring and recording charging parameters of the energy storage equipment in real time; wherein the charging parameters comprise charging current and electric quantity parameters; and detecting whether the trickle charging function of the energy storage equipment is qualified or not according to the charging parameters. According to the technical scheme, the energy storage equipment is controlled to discharge according to the electric quantity parameter of the energy storage equipment acquired in real time, so that the detection efficiency and the detection accuracy of detecting the trickle charging function of the energy storage equipment can be improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of batteries, and in particular, to a fast detection method and system for an energy storage device. Background Art

[0002] Trickle charging of a battery is a charging mode for batteries such as lithium batteries and lead-acid batteries, mainly used for small-current slow charging when the remaining battery power is 0% or the battery is over-discharged, in order to protect the battery, extend the battery life and ensure safety.

[0003] In the prior art, the method for detecting the trickle charging function of a battery is mainly to discharge the battery module to the cut-off voltage through stepped discharge, and then let the battery module stand still to wait for the voltage of the battery module to naturally drop to the trickle charging threshold, and then connect a charging power supply to detect whether the trickle charging function of the battery is triggered.

[0004] However, the method for detecting the trickle charging function of a battery in the prior art has technical defects. First of all, it usually takes more than 24 hours to let the battery module stand still so that the voltage of the battery module naturally drops to the trickle charging threshold, resulting in a long test cycle and low detection efficiency; secondly, the change of the ambient temperature during the standing period of the battery module is likely to cause voltage drift of the battery module, thus affecting the accuracy of the test results. Summary of the Invention

[0005] The present invention provides a fast detection method and system for an energy storage device to improve the detection efficiency and accuracy of detecting the trickle charging function of the energy storage device.

[0006] The first aspect of the present invention provides a fast detection method for an energy storage device, which is used to detect the trickle charging function of the energy storage device; the fast detection method includes:

[0007] Real-time obtain the power parameter of the energy storage device;

[0008] According to the power parameter, control the energy storage device to discharge;

[0009] When the power parameter is within the trickle charging range, control the energy storage device to charge;

[0010] When the energy storage device is charging, real-time obtain and record the charging parameter of the energy storage device; wherein, the charging parameter includes charging current and the power parameter;

[0011] According to the charging parameter, detect whether the trickle charging function of the energy storage device is qualified.

[0012] Optionally, the energy storage device includes a plurality of battery cells;

[0013] The power parameters include at least one of the remaining power, total voltage, and cell voltage of the energy storage device.

[0014] Optionally, controlling the energy storage device to discharge according to the power parameters includes:

[0015] When the power parameters are within a first power range, controlling the energy storage device to discharge at a first discharge current; when the power parameters are within a second power range, controlling the energy storage device to discharge at a second discharge current;

[0016] Wherein, the lower limit value of the first power range is greater than or equal to the upper limit value of the second power range, and the first discharge current is greater than the second discharge current.

[0017] Optionally, the second power range is equal to the trickle charge range.

[0018] Optionally, when the power parameters are within the trickle charge range, controlling the energy storage device to charge includes:

[0019] When the power parameters are in the trickle charge range for the second time, controlling the energy storage device to charge.

[0020] Optionally, after controlling the energy storage device to charge when the power parameters are within the trickle charge range, it further includes:

[0021] Continuing to control the energy storage device to discharge according to the power parameters until the charging power of the energy storage device reaches a first power threshold, and then controlling the energy storage device to stop discharging.

[0022] Optionally, before real-time obtaining the power parameters of the energy storage device, it further includes:

[0023] Controlling the energy storage device to stop charging.

[0024] Optionally, before real-time obtaining the power parameters of the energy storage device, it further includes:

[0025] Obtaining the model of the energy storage device, and obtaining the trickle charge parameters of the energy storage device according to the model of the energy storage device; the trickle charge parameters include the trickle charge range and the trickle current range;

[0026] Detecting whether the trickle charging function of the energy storage device is qualified according to the charging parameters includes:

[0027] Detecting whether the trickle charging function of the energy storage device is qualified according to the charging parameters and the trickle charge parameters.

[0028] Optionally, according to the charging parameter and the trickle charging parameter, detecting whether the trickle charging function of the energy storage device is qualified includes:

[0029] Judging whether the charging current of the energy storage device is within the trickle range when the power parameter is within the trickle charging range;

[0030] If the charging current of the energy storage device is not within the trickle range when the power parameter is within the trickle charging range, it is determined that the trickle charging function of the energy storage device is unqualified.

[0031] Optionally, according to the charging parameter and the trickle charging parameter, detecting whether the trickle charging function of the energy storage device is qualified further includes:

[0032] If the charging current of the energy storage device is within the trickle range when the power parameter is within the trickle charging range, judging whether the charging current of the energy storage device is greater than the upper limit value of the trickle range when the power parameter is greater than the upper limit value of the trickle charging range;

[0033] If the charging current of the energy storage device is greater than the upper limit value of the trickle range when the power parameter is greater than the upper limit value of the trickle charging range, it is determined that the trickle charging function of the energy storage device is qualified;

[0034] If the charging current of the energy storage device is less than or equal to the upper limit value of the trickle range when the power parameter is greater than the upper limit value of the trickle charging range, it is determined that the trickle charging function of the energy storage device is unqualified.

[0035] Optionally, after controlling the energy storage device to charge when the power parameter is within the trickle charging range, it further includes:

[0036] Judging whether the power parameter reaches a first power threshold;

[0037] If the power parameter reaches the first power threshold, controlling the energy storage device to stop charging.

[0038] A second aspect of the present invention provides a fast detection system for an energy storage device, which is used to detect the trickle charging function of the energy storage device; the fast detection system includes: a power supply module, a charging switch, a discharge switch, a load and a control device;

[0039] The DC output end of the power supply module is electrically connected to the first end of the charging switch, and the second end of the charging switch is used to connect to the first power supply end of the energy storage device; the control end of the charging switch is electrically connected to the first control output end of the control device;

[0040] The first end of the discharge switch is used to connect to the power supply end of the energy storage device, and the second end of the discharge switch is electrically connected to the second power supply end of the load; the control end of the discharge switch is electrically connected to the second control output end of the control device;

[0041] The control device further includes a first communication end, and the first communication end is used for communication connection with the second communication end of the energy storage device; the control device is used to execute the rapid detection method of the energy storage device according to any one of claims 1-11.

[0042] The technical solution of the present invention can, by obtaining the power parameter of the energy storage device in real time, control the energy storage device to discharge according to the power parameter, so that the voltage of the energy storage device can be quickly reduced to the trickle charging range, ensuring that the energy storage device can reach the over-discharge state, creating conditions for subsequent detection of the trickle charging function of the energy storage device, and at the same time avoiding a long static time of the energy storage device, shortening the detection period for detecting the trickle charging function of the energy storage device and improving the detection efficiency. And by controlling the energy storage device to charge when the power parameter is in the trickle charging range, the speed of the energy storage device entering the trickle charging is increased. In addition, by obtaining and recording the charging parameters of the energy storage device in real time when the energy storage device is charging, the charging parameters include the charging current and the power parameter, so as to facilitate analyzing the change trend of the charging current with the power parameter during the charging process of the energy storage device, and thus being able to detect whether the trickle charging function of the energy storage device is qualified according to the charging parameters, avoiding the insufficient test accuracy caused by voltage drift or unrealistic simulated working conditions, and improving the test accuracy of the trickle charging function test.

[0043] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 It is a schematic structural diagram of a rapid detection system for an energy storage device provided in Embodiment 1 of the present invention;

[0046] Figure 2 It is a schematic flow diagram of a rapid detection method for an energy storage device provided in Embodiment 2 of the present invention;

[0047] Figure 3It is a schematic flow chart of a rapid detection method for an energy storage device provided in Embodiment 3 of the present invention;

[0048] Figure 4 It is a schematic flow chart of a rapid detection method for an energy storage device provided in Embodiment 4 of the present invention. Detailed implementation manners

[0049] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0051] Embodiment 1

[0052] Figure 1 It is a schematic structural diagram of a rapid detection system for an energy storage device provided in Embodiment 1 of the present invention. The rapid detection system for the energy storage device is used to detect the trickle charging function of the energy storage device 00. As Figure 1 shown, the rapid detection system includes: a power supply module 1, a charging switch 2, a discharging switch 3, a load 4, and a control device 5; the DC output terminal 101 of the power supply module 1 is electrically connected to the first end 201 of the charging switch 2, and the second end 202 of the charging switch 2 is used to connect to the first power supply terminal 001 of the energy storage device 00; the control terminal 203 of the charging switch 2 is electrically connected to the first control output terminal 501 of the control device 5; the first end 301 of the discharging switch 3 is used to connect to the power supply terminal 002 of the energy storage device 00, and the second end 302 of the discharging switch 3 is electrically connected to the second power supply terminal 401 of the load 4; the control terminal 303 of the discharging switch 3 is electrically connected to the second control output terminal 502 of the control device 5; the control device 5 further includes a first communication terminal 503, and the first communication terminal 503 is used to communicate with the second communication terminal 003 of the energy storage device 00.

[0053] Among them, the energy storage device 00 can specifically be understood as a device that can store electrical energy and release it when needed. Exemplarily, the energy storage device 00 may include a battery module, such as a lithium battery or a lead-acid battery, etc., and a battery management system (Battery Management System, BMS). Trickle charging can specifically be understood as the initial charging carried out when the remaining power of the battery module is close to 0% or the battery module is in an over-discharged state, which directly affects the performance, lifespan, and safety of the battery module. Therefore, it is necessary to detect whether the trickle charging function of the energy storage device 00 works normally according to the design logic through a fast detection system.

[0054] The power module 1 can specifically be understood as a power supply device that provides direct current power for the energy storage device 00. Exemplarily, the power module 1 may include an AC / DC converter, so that the power module 1 can convert the alternating current input from the mains or photovoltaic into direct current, thereby providing a stable charging voltage and charging current for the energy storage device 00. The charging switch 2 can specifically be understood as a switching device that controls the on / off of the charging circuit. Exemplarily, the charging switch 2 can be a switching device such as a relay or a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET). Specifically, the DC output terminal 101 of the power module 1 is electrically connected to the first terminal 201 of the charging switch 2, and the second terminal 202 of the charging switch 2 is used to connect to the first power supply terminal 001 of the energy storage device 00, so as to be able to control the start or stop of the charging process of the energy storage device 00 by closing or disconnecting the charging switch 2. During the detection process of the trickle charging function of the energy storage device 00, when the voltage of the energy storage device 00 reaches the trickle charging range, the charging switch 2 is closed, so that the power module 1 can provide the direct current obtained by converting the mains or photovoltaic to the first power supply terminal of the energy storage device 00 to start trickle charging; when the test is over or it is necessary to pause the charging of the energy storage device 00, the charging switch 2 is disconnected.

[0055] The load 4 can specifically be understood as a device for consuming the electric energy of the energy storage device 00, so that the energy storage device 00 can quickly discharge through the load 4. Exemplarily, the load 4 can be a DC electronic load, and the DC electronic load can precisely control the discharge current of the energy storage device 00 in the constant current (CC) mode, so that the voltage of the energy storage device 00 can quickly drop to the trickle charge range. The discharge switch 3 can specifically be a switch device for controlling the on / off state of the discharge circuit. Exemplarily, the discharge switch 3 can be a switch device such as a relay or a MOSFET. Specifically, the first end 301 of the discharge switch 3 is used to connect to the power supply end 002 of the energy storage device 00, and the second end 302 of the discharge switch 3 is electrically connected to the second power supply end 401 of the load 4, so as to be able to control the start or stop of the discharge process of the energy storage device 00 by closing or opening the discharge switch 3. During the detection process of the trickle charge function of the energy storage device 00, the positive electrode and the negative electrode of the battery module in the energy storage device 00 can be respectively connected to the corresponding positive electrode and negative electrode of the DC electronic load through a cable, and the discharge switch 3 is connected in series in the cable to form a discharge circuit of the energy storage device 00. Exemplarily, at the initial stage of detection, the discharge switch 3 is closed to make the energy storage device 00 quickly discharge through the load 4, so as to quickly reduce the voltage of the energy storage device 00 to the trickle charge range; when the energy storage device 00 enters the trickle charge stage, the discharge switch 3 is opened to stop the discharge of the energy storage device 00.

[0056] The control device 5 can specifically be understood as a device for monitoring the working condition of the energy storage device 00 and controlling the on / off states of the charging switch 2 and the discharge switch 3. Among them, the control device 5 includes but is not limited to a microcontroller unit (MCU), a microprocessor unit (MPU), etc., and can be, for example, an upper computer such as a computer or an industrial personal computer. Specifically, the first communication end 503 of the control device 5 is communicatively connected to the second communication end 003 of the energy storage device 00, so that the control module 5 can obtain the power parameters of the energy storage device 00 in real time through protocols such as USB and CAN. The power parameters can include the remaining power, the total voltage, etc. of the energy storage device 00. At the same time, the control end 203 of the charging switch 2 is electrically connected to the first control output end 501 of the control device 5, and the control end 303 of the discharge switch 3 is electrically connected to the second control output end 502 of the control device 5, so that the control device 5 can also control the on / off states of the charging switch 2 and the discharge switch 3 according to the power parameters of the energy storage device 00 obtained in real time, so as to realize the rapid detection of the trickle charge function of the energy storage device 00.

[0057] It can be understood that the control device in the rapid detection system of the energy storage device can execute the rapid detection method of the energy storage device provided by the embodiments of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. For the technical details not described in detail in this embodiment, reference can be made to the rapid detection method of the energy storage device described in the following embodiments.

[0058] Embodiment 2

[0059] Figure 2 FIG. is a schematic flowchart of a rapid detection method for an energy storage device provided by Embodiment 2 of the present invention. This embodiment can be used to control the rapid detection system of the energy storage device in the above embodiment. The rapid detection method for the energy storage device is used to detect the trickle charging function of the energy storage device. This method can be executed by a rapid detection device of the energy storage device. The device can be implemented in a software and / or hardware manner and is generally integrated in the control device of the rapid detection system of the energy storage device. Correspondingly, as Figure 2 shown, the rapid detection method for the energy storage device may include:

[0060] S101. Obtain the power parameters of the energy storage device in real time.

[0061] Specifically, the control device communicatively connected to the energy storage device obtains the power parameters of the energy storage device in real time. Among them, the power parameters include, but are not limited to, the remaining power (State of Charge, SOC), total voltage, etc. of the battery module in the energy storage device. By obtaining the power parameters of the energy storage device in real time, accurate data support is provided for subsequent controlling the energy storage device to discharge according to the power parameters.

[0062] Optionally, the energy storage device includes a plurality of battery cells; the power parameters include at least one of the remaining power, total voltage, and battery cell voltage of the energy storage device.

[0063] Among them, the battery cell can be specifically understood as the basic unit constituting the battery module in the energy storage device. A plurality of battery cells are combined in series or in parallel to form a battery module to meet the requirements of the energy storage device for voltage, capacity, and power. The power parameters include at least one of the remaining power, total voltage, and battery cell voltage of the energy storage device. The remaining power of the energy storage device can be specifically understood as the percentage of the current power of the battery module in the total capacity. The battery cell voltage can be specifically understood as the voltage of a single battery cell. The total voltage can be specifically the voltage of the entire battery module, which is determined by the voltages of the battery cells connected in series or in parallel in the battery module. Combining the remaining power and the total voltage provides comprehensive state information of the battery module. By the control device obtaining the remaining power, total voltage, and battery cell voltage of the energy storage device in real time, it is possible to accurately determine whether the voltage of the energy storage device reaches the trickle charging range, improving the detection accuracy of detecting the trickle charging function of the energy storage device.

[0064] S102. Control the energy storage device to discharge according to the power parameter.

[0065] Specifically, the control device can judge the initial power state and overall voltage of the energy storage device according to the power parameter of the energy storage device obtained in real time, so as to determine whether the energy storage device needs to discharge. Exemplarily, when the control device determines that the SOC of the energy storage device is 0% according to the power parameter, it indicates that the energy storage device has been fully discharged and reached the lowest safety voltage, but still needs to be further discharged to ensure that the energy storage device enters the over-discharge state required for trickle charging; when the control device determines that the SOC of the energy storage device > 0% according to the power parameter, it indicates that the energy storage device still has a certain amount of power, and it is necessary to discharge to make the voltage of the energy storage device drop to the trickle charging range. Therefore, when the control device determines that the SOC = 0% or the SOC of the energy storage device > 0% according to the power parameter of the energy storage device obtained in real time, the control discharges the switch to close, so as to be able to use the load to control the energy storage device to discharge, so that the voltage of the energy storage device can be quickly reduced to the trickle charging range, ensuring that the energy storage device can reach the over-discharge state and creating conditions for subsequent detection of the trickle charging function of the energy storage device.

[0066] It can also be understood that by using the load to control the energy storage device to discharge, the voltage of the energy storage device can be quickly reduced to the trickle charging range, without the need to wait for more than 24 hours in the traditional method, thus shortening the detection period for detecting the trickle charging function of the energy storage device and improving the detection efficiency. In addition, the control device can also adjust the discharge current of the energy storage device in real time according to the power parameter of the energy storage device. Exemplarily, when the control device determines that the overall voltage of the control device is relatively large according to the power parameter of the energy storage device obtained in real time, the control device can increase the discharge current of the energy storage device; when the control device determines that the overall voltage of the control device is relatively small according to the power parameter of the energy storage device obtained in real time, the control device can reduce the discharge current of the energy storage device, so that the fast detection system of the energy storage device can adapt to various energy storage devices, while ensuring a stable and efficient discharge process of the energy storage device and improving the detection accuracy of detecting the trickle charging function of the energy storage device.

[0067] S103. Control the energy storage device to charge when the power parameter is within the trickle charging range.

[0068] Among them, the trickle charge range can be understood as the range of power parameters for the energy storage device to enter the trickle charging mode. Different models of energy storage devices may correspond to different trickle charge ranges. In an alternative implementation, the trickle charge range of the energy storage device can be determined according to the model of the energy storage device. Exemplarily, the trickle charge range may include: the total voltage of the energy storage device is less than or equal to (n × 2.15) V, where n is the number of battery cells, the cell voltage of the energy storage device is between 1.8 V and 3.0 V, and the SOC of the energy storage device is between 0% and 5%, etc., which are low power ranges.

[0069] Specifically, when the control device determines that at least one of the SOC, total voltage, or cell voltage of the energy storage device is within the trickle charge range according to the power parameters of the energy storage device obtained in real time, it indicates that the energy storage device can achieve trickle charging at this time. The control device controls the charging switch to close, so as to be able to use the power module to control the charging of the energy storage device, laying a foundation for subsequent detection of the trickle charging function of the energy storage device.

[0070] Exemplarily, the power supply method for the energy storage device can be mains power, photovoltaic power, or other battery modules for power supply, so that the fast detection system of the energy storage device can be applicable to various energy storage devices and test environments. By controlling the energy storage device to be powered according to the power parameters by the control device, the speed of the energy storage device entering the trickle charging is increased, thereby improving the efficiency of the trickle charging function test. At the same time, by continuously monitoring the power parameters of the energy storage device by the control device, the drift of the voltage of the energy storage device caused by temperature changes in the traditional static method is avoided, thereby improving the test accuracy of the trickle charging function test.

[0071] S104. When the energy storage device is charging, obtain and record the charging parameters of the energy storage device in real time.

[0072] Among them, the charging parameters include charging current and power parameters.

[0073] Specifically, during the charging of the energy storage device, the control module obtains and records the charging parameters of the energy storage device in real time, providing data support for subsequent detection of whether the trickle charging function of the energy storage device is qualified. The charging parameters include charging current and power parameters. The charging current can be specifically understood as the current flowing through the energy storage device during the charging process. The power parameters can include at least one of the SOC, total voltage, and cell voltage of the energy storage device. The control device can collect the charging current and power parameters of the energy storage device from the BMS at a high frequency, such as once per second or per millisecond. By obtaining and recording the charging current and power parameters of the energy storage device at the same moment, it is ensured that the data can reflect the real-time correlation between the charging current and power parameters of the energy storage device, facilitating the analysis of the change trend of the charging current with the power parameters during the charging process of the energy storage device, thereby improving the test accuracy of the trickle charging function test.

[0074] S105. Detect whether the trickle charging function of the energy storage device is qualified according to the charging parameters.

[0075] Specifically, when the energy storage device is charging, the control device obtains and records the charging parameters of the energy storage device in real time to detect whether the trickle charging function of the energy storage device is qualified. Exemplarily, when the trickle charging range of the energy storage device is that the total voltage of the energy storage device is between 22V and 24V and the cell voltage of the energy storage device is between 1.8V and 3.0V, and the trickle charging current of the energy storage device is 2A ± 0.2A, if it is determined according to the charging parameters that the total voltage of the energy storage device is between 22V and 24V, or the cell voltage of the energy storage device is between 1.8V and 3.0V, and the charging current of the energy storage device is 2A ± 0.2A, it can be explained that when the power parameter of the energy storage device is within the trickle charging range, the energy storage device enters the trickle charging mode, thus indicating that the trickle charging function of the energy storage device is qualified. On the contrary, if it is determined according to the charging parameters that when the total voltage of the energy storage device is between 22V and 24V, or the cell voltage of the energy storage device is between 1.8V and 3.0V, the charging current of the energy storage device is not within the range of 2A ± 0.2A, it can be explained that when the power parameter of the energy storage device is within the trickle charging range, the energy storage device does not correctly enter the trickle charging mode, thus indicating that the trickle charging function of the energy storage device is unqualified. Detecting whether the trickle charging function of the energy storage device is qualified according to the charging parameters avoids the insufficient test accuracy caused by voltage drift or unrealistic simulated working conditions in the traditional method, improves the test accuracy of the trickle charging function test, and at the same time shortens the detection period of the trickle charging function detection and improves the detection efficiency.

[0076] Optionally, before obtaining the power parameter of the energy storage device in real time, it further includes: controlling the energy storage device to stop charging. Specifically, before obtaining the power parameter of the energy storage device in real time, first, the control device controls the charging switch to be disconnected to control the energy storage device to stop charging, so as to ensure that the power parameter of the energy storage device obtained by the control device in real time can reflect the real state of the energy storage device and is not affected by the charging current, thereby providing a reliable basis for subsequent controlling the energy storage device to discharge according to the power parameter and obtaining and recording the charging parameters of the energy storage device, and improving the accuracy of the trickle charging function detection.

[0077] In this embodiment, by obtaining the power parameter of the energy storage device in real time, the energy storage device can be controlled to discharge according to the power parameter, so that the voltage of the energy storage device can be quickly reduced to the trickle charging range, ensuring that the energy storage device can reach the over-discharge state, creating conditions for subsequent detection of the trickle charging function of the energy storage device, and at the same time avoiding a long static time of the energy storage device, shortening the detection cycle for detecting the trickle charging function of the energy storage device, and improving the detection efficiency. And by controlling the energy storage device to charge when the power parameter is in the trickle charging range, the speed of the energy storage device entering the trickle charging is increased. In addition, by obtaining and recording the charging parameters of the energy storage device in real time when the energy storage device is charging, the charging parameters include the charging current and the power parameter, so as to facilitate analyzing the change trend of the charging current with the power parameter during the charging process of the energy storage device, and thus the trickle charging function of the energy storage device can be detected according to the charging parameters whether it is qualified, avoiding the insufficient test accuracy caused by voltage drift or unrealistic simulated working conditions, and improving the test accuracy of the trickle charging function.

[0078] Embodiment III

[0079] Figure 3 FIG. 7 is a schematic flow chart of a fast detection method for an energy storage device provided in Embodiment III of the present invention. On the basis of the above embodiments, this embodiment details the method for controlling the energy storage device to discharge and the method for controlling the energy storage device to charge. Correspondingly, as Figure 3 shown, the fast detection method for the energy storage device in this embodiment may include:

[0080] S201. Obtain the power parameter of the energy storage device in real time.

[0081] S202. When the power parameter is in the first power range, control the energy storage device to discharge at the first discharge current; when the power parameter is in the second power range, control the energy storage device to discharge at the second discharge current.

[0082] Wherein, the lower limit value of the first power range is greater than or equal to the upper limit value of the second power range, and the first discharge current is greater than the second discharge current.

[0083] Specifically, the control device can control the energy storage device to discharge at different discharge currents in different power ranges according to the power parameter of the energy storage device obtained in real time. For example, when the control device determines according to the power parameter that the power state or the overall voltage of the energy storage device is in the first power range, control the energy storage device to discharge at the first discharge current; when the control device determines according to the power parameter that the SOC or the overall voltage of the energy storage device is in the second power range, control the energy storage device to discharge at the second discharge current, so as to efficiently and stably reduce the voltage of the energy storage device to the trickle charging range by controlling the energy storage device to discharge in stages.

[0084] It can be understood that the lower limit value of the first power range is greater than or equal to the upper limit value of the second power range, that is, the first power range corresponds to a higher overall voltage or power state, and the second power range corresponds to a lower overall voltage or power state, approaching the trickle charge range. The first discharge current is greater than the second discharge current, that is, when the overall voltage or power state of the energy storage device is relatively high, the energy storage device is controlled to discharge with a larger discharge current to quickly consume the power of the energy storage device and accelerate the decline of the overall voltage of the energy storage device, thereby shortening the test time; when the overall voltage or power state of the energy storage device is relatively low and approaching the trickle charge range, the energy storage device is controlled to discharge with a smaller discharge current. Exemplarily, the value range of the second discharge current can be between 0.5 A and 1 A, so that the energy storage device discharges slowly when approaching the trickle charge range, thereby avoiding the drastic change in the overall voltage of the energy storage device when the subsequent control of the energy storage device to stop discharging, avoiding the voltage rebound caused by the drastic change in the overall voltage of the energy storage device, ensuring that the overall voltage of the energy storage device can be stably within the trickle charge range, thereby improving the accuracy and stability of the trickle charge function detection.

[0085] Optionally, the second power range is equal to the trickle charge range.

[0086] Specifically, the second power range can be equal to the trickle charge range, that is, when the control device determines that the power state or overall voltage of the energy storage device is within the trickle charge range according to the power parameter, the energy storage device is controlled to discharge with a smaller discharge current. Thus, before the power state or overall voltage of the energy storage device is within the trickle charge range, it discharges with a larger discharge current to reduce the inefficient small-current discharge time, further accelerating the decline speed of the overall voltage of the energy storage device, thereby more effectively shortening the detection period of the trickle charge function detection, improving the detection efficiency, and at the same time avoiding the drastic change in the overall voltage of the energy storage device and voltage rebound when the subsequent control of the energy storage device to stop discharging, improving the accuracy and stability of the trickle charge function detection.

[0087] S203. When the power parameter is within the trickle charge range for the second time, control the energy storage device to charge.

[0088] Specifically, when the control device determines that the power parameter of the energy storage device is within the trickle charging range for the first time based on the power parameter, it controls the energy storage device to discharge with a relatively small discharge current. When the energy storage device switches from high-current discharge to low-current discharge, the electrochemical reaction or charge redistribution inside the energy storage device may cause a temporary voltage rebound of the overall voltage of the energy storage device. If the energy storage device is immediately controlled to charge at this time, the overall voltage of the energy storage device may quickly exceed the trickle charging range due to the voltage rebound of the energy storage device, and the energy storage device will immediately exit the trickle charging mode. A too short trickle charging time of the energy storage device will cause the control device to be insufficient to stably record the charging parameters of the energy storage device in the trickle charging mode, thus affecting the integrity of the trickle charging function detection. Therefore, when the energy storage device switches from high-current discharge to low-current discharge and the overall voltage of the energy storage device temporarily rebounds, when the power parameter of the energy storage device is within the trickle charging range for the second time, the power parameter of the energy storage device will be stable within the trickle charging range. At this time, the control device is used to control the energy storage device to charge, so that the energy storage device can maintain the trickle charging mode for a long time, thereby facilitating the control device to stably record the charging parameters of the energy storage device in the trickle charging mode and improving the stability and accuracy of the trickle charging function detection.

[0089] It can also be understood that if the second power range is not equal to the trickle charging range, for example, when the second power range is slightly higher than the trickle charging range, the energy storage device will not enter the trickle charging mode when the power parameter of the energy storage device is within the second power range. Therefore, when the power parameter of the energy storage device is within the second power range, the temporary voltage rebound of the overall voltage caused by the energy storage device switching from high-current discharge to low-current discharge will not result in too short a trickle charging time of the energy storage device. And when the energy storage device discharges with a small current and the power parameter of the energy storage device is within the trickle power range for the first time, the overall voltage of the energy storage device has tended to be stable. Therefore, if the second power range is not equal to the trickle charging range, the energy storage device can be controlled to charge when the power parameter of the energy storage device is within the trickle charging range for the first time.

[0090] S204. Continue to control the energy storage device to discharge according to the power parameter until the charging power of the energy storage device reaches the first power threshold, and then control the energy storage device to stop discharging.

[0091] Specifically, at the initial stage when the energy storage device enters the trickle charging mode, the charging power of the energy storage device is relatively small. At this time, continue to control the energy storage device to discharge to prevent the voltage of the energy storage device from briefly rebounding when controlling the energy storage device to stop charging, which may cause the overall voltage of the energy storage device to quickly exceed the trickle charging range, and the energy storage device will immediately exit the trickle charging mode. If the trickle charging time of the energy storage device is too short, the control device will not be able to stably record the charging parameters of the energy storage device in the trickle charging mode, thus affecting the integrity of the detection of the trickle charging function. After the control device determines that the charging power of the energy storage device reaches the first power threshold according to the obtained charging current and voltage of the energy storage device, it indicates that the trickle charging mode of the energy storage device has reached a stable state at this time. Stopping charging at this time will not cause the voltage of the energy storage device to rebound and exceed the trickle charging range. Therefore, at this time, the control device disconnects the discharge switch to make the energy storage device stop discharging, so that the energy storage device enters the normal trickle charging mode, ensuring that the control device can stably record the charging parameters of the energy storage device in the trickle charging mode, improving the stability and accuracy of the detection of the trickle charging function, and at the same time improving the detection efficiency of the trickle charging function detection.

[0092] Among them, the first power threshold can be set according to experience or actual detection requirements, and the present invention does not make specific limitations in this regard. Exemplarily, the first power threshold can be 10W.

[0093] S205. When the energy storage device is charging, real-time obtain and record the charging parameters of the energy storage device.

[0094] S206. According to the charging parameters, detect whether the trickle charging function of the energy storage device is qualified.

[0095] In this embodiment, by controlling the energy storage device to discharge at the first discharge current when the power parameter is within the first power range, and controlling the energy storage device to discharge at the second discharge current when the power parameter is within the second power range, when the overall voltage or power state of the energy storage device is relatively low, the energy storage device is controlled to discharge at a relatively small discharge current, thus avoiding the voltage rebound caused by the drastic change of the overall voltage of the energy storage device, ensuring that the overall voltage of the energy storage device can be stably within the trickle charging range, and thus improving the stability of the detection of the trickle charging function. And by controlling the energy storage device to charge when the power parameter is within the trickle charging range for the second time, the energy storage device can maintain the trickle charging mode for a long time, thus facilitating the control device to stably record the charging parameters of the energy storage device in the trickle charging mode. In addition, by continuing to control the energy storage device to discharge according to the power parameter until the charging power of the energy storage device reaches the first power threshold and then controlling the energy storage device to stop discharging, the stability of the trickle charging mode of the energy storage device is ensured, the accuracy of the detection of the trickle charging function is improved, and at the same time the detection efficiency of the trickle charging function detection is improved.

[0096] Example 4

[0097] Figure 4 FIG. is a schematic flow chart of a rapid detection method for an energy storage device provided in Example 4 of the present invention. On the basis of the above embodiments, this embodiment details the method for detecting whether the trickle charging function of the energy storage device is qualified. Correspondingly, as Figure 4 shown, the rapid detection method for the energy storage device in this embodiment may include:

[0098] S301. Obtain the model of the energy storage device, and obtain the trickle charging parameters of the energy storage device according to the model of the energy storage device.

[0099] Among them, the trickle charging parameters include the trickle charging range and the trickle current range.

[0100] Specifically, before obtaining the power parameter of the energy storage device in real time, the control device will also obtain the model of the energy storage device, and obtain the trickle charging parameters of the energy storage device according to the model of the energy storage device, so as to ensure that the rapid detection system of the energy storage device can set the correct test conditions for the trickle charging function according to the specific characteristics of the energy storage device, improving the pertinence and accuracy of the trickle charging function test. The trickle charging parameters include the trickle charging range and the trickle current range. The trickle current range can be specifically understood as the current range in the trickle charging mode of the energy storage device. Different models of energy storage devices may correspond to different trickle current ranges. For example, the more series-connected battery cells in the energy storage device, the higher the trickle current range of the energy storage device. Exemplarily, the trickle current range of the energy storage device can be 2A ± 0.2A.

[0101] S302. Obtain the power parameter of the energy storage device in real time.

[0102] S303. Control the energy storage device to discharge according to the power parameter.

[0103] S304. When the power parameter is within the trickle charging range, control the energy storage device to charge.

[0104] Optionally, after controlling the energy storage device to charge when the power parameter is within the trickle charging range, it further includes: judging whether the power parameter reaches the first power threshold; if the power parameter reaches the first power threshold, control the energy storage device to stop charging.

[0105] Specifically, after the control device determines that the power parameter of the energy storage device is within the trickle charging range based on the power parameter of the energy storage device obtained in real time and controls the energy storage device to charge, the control device will continue to obtain the power parameter of the energy storage device in real time to determine whether the power parameter reaches the first power threshold, and can disconnect the charging switch after the power parameter reaches the first power threshold to stop the energy storage device from charging. Among them, the first power threshold can be specifically understood as the lowest power threshold at which the energy storage device can meet the charging function test requirements. After the power parameter of the energy storage device reaches the first power threshold, it indicates that the control device has stably obtained and recorded the charging parameters of the energy storage device in the trickle charging mode. The first power threshold can be set according to experience or actual detection requirements, and the present invention does not make specific limitations in this regard.

[0106] Exemplarily, the first power threshold may include a first total voltage threshold, a first cell voltage threshold, and a first remaining power threshold. When the control device determines that the total voltage of the energy storage device reaches the first total voltage threshold, the cell voltage of the energy storage device reaches the first cell voltage threshold, or the remaining power of the energy storage device reaches the first remaining power threshold, the control device will control the energy storage device to stop charging without fully charging the energy storage device, so as to reduce energy consumption and environmental impact on the premise of meeting the trickle charging function test requirements, and improve the sustainability of the fast detection system of the energy storage device. At the same time, by controlling the energy storage device to stop charging when the power parameter reaches the first power threshold, the time for discharging the energy storage device to make the electrical parameters of the energy storage device enter the trickle charging range in the next trickle charging function test can be shortened, thereby shortening the detection cycle of the trickle charging function detection and improving the detection efficiency.

[0107] It can also be understood that if a large-capacity floating charge test needs to be performed on the energy storage device in the future, for example, the energy storage device needs to be charged to SOC = 100%, it is not necessary to set the first power threshold to control the energy storage device to stop charging, so that the fast detection system of the energy storage device can be applicable to multiple test scenarios and improve the flexibility of the fast detection system of the energy storage device.

[0108] S305. When the energy storage device is charging, obtain and record the charging parameters of the energy storage device in real time.

[0109] S306. Detect whether the trickle charging function of the energy storage device is qualified according to the charging parameters and the trickle charging parameters.

[0110] Specifically, by comparing and recording in real time the charging parameters of the energy storage device in the trickle charging mode and the trickle charging parameters of the energy storage device, the control system can detect whether the trickle charging function of the energy storage device is qualified, enabling the fast detection system of the energy storage device to be applicable to various energy storage devices, ensuring that the test of the trickle charging function targets the characteristics of specific energy storage devices, avoiding the deviation of using general test conditions, and thus improving the accuracy of the detection of the trickle charging function. At the same time, the comparison of the charging parameters and the trickle charging parameters can achieve the fast detection of whether the trickle charging function of the energy storage device is qualified without manual intervention, thereby shortening the detection cycle of the trickle charging function detection and improving the detection efficiency.

[0111] Optionally, detecting whether the trickle charging function of the energy storage device is qualified according to the charging parameters and the trickle charging parameters includes: determining whether the charging current of the energy storage device is within the trickle range when the power parameter is within the trickle charging range; if the charging current of the energy storage device is not within the trickle range when the power parameter is within the trickle charging range, it is determined that the trickle charging function of the energy storage device is unqualified.

[0112] Specifically, the control device can detect whether the trickle charging function of the energy storage device is qualified according to the power parameter of the energy storage device, the charging current of the energy storage device, the trickle charging range, and the trickle range. Exemplarily, the trickle charging range of the energy storage device can be that the total voltage of the energy storage device is between 22V and 24V and the cell voltage of the energy storage device is between 1.8V and 3.0V, and the trickle range of the energy storage device can be 2A ± 0.2A. When the control device determines that the power parameter is within the trickle charging range according to the charging parameters of the energy storage device, that is, when it is determined according to the charging parameters that the total voltage of the energy storage device is between 22V and 24V, or the cell voltage of the energy storage device is between 1.8V and 3.0V, the control device will determine whether the charging current of the energy storage device is within the trickle range. If the control device determines according to the charging parameters of the energy storage device that the charging current of the energy storage device is not within the trickle range, that is, the charging current of the energy storage device is not within the range of 2A ± 0.2A, it indicates that the energy storage device does not correctly enter the trickle charging mode when the power parameter is within the trickle charging range, and it is determined that the trickle charging function of the energy storage device is unqualified; if the control device determines according to the charging parameters of the energy storage device that the charging current of the energy storage device is within the trickle range, that is, the charging current of the energy storage device is within the range of 2A ± 0.2A, it indicates that the energy storage device enters the trickle charging mode when the power parameter is within the trickle charging range, and it is determined that the trickle charging function of the energy storage device is qualified.

[0113] Optionally, according to the charging parameter and trickle charging parameter, it is detected whether the trickle charging function of the energy storage device is qualified, and it further includes: when the power parameter is within the trickle charging range, if the charging current of the energy storage device is within the trickle range, it is judged whether the charging current of the energy storage device is greater than the upper limit of the trickle range when the power parameter is greater than the upper limit of the trickle charging range; when the power parameter is greater than the upper limit of the trickle charging range, if the charging current of the energy storage device is greater than the upper limit of the trickle range, it is determined that the trickle charging function of the energy storage device is qualified; when the power parameter is greater than the upper limit of the trickle charging range, if the charging current of the energy storage device is less than or equal to the upper limit of the trickle range, it is determined that the trickle charging function of the energy storage device is unqualified.

[0114] Specifically, after the control device determines that the power parameter is within the trickle charging range and the charging current of the energy storage device is within the trickle range according to the charging parameter of the energy storage device, the control device will further judge whether the charging current of the energy storage device is greater than the upper limit of the trickle range when the power parameter is greater than the upper limit of the trickle charging range, so as to verify whether the energy storage device can correctly exit the trickle charging mode and enter the normal large current charging mode, so as to comprehensively detect the trigger, execution and exit logic of the trickle charging function of the energy storage device, realize a more comprehensive evaluation of the trickle charging function of the energy storage device, and improve the accuracy and reliability of the trickle charging function test.

[0115] Exemplarily, the trickle charging range of the energy storage device can be that the total voltage of the energy storage device is between 22V and 24V and the cell voltage of the energy storage device is between 1.8V and 3.0V, and the trickle range of the energy storage device can be 2A±0.2A. After the control device determines according to the charging parameter of the energy storage device that the total voltage of the energy storage device is between 22V and 24V, or the cell voltage of the energy storage device is between 1.8V and 3.0V, and the charging current of the energy storage device is within the range of 2A±0.2A, the control device will further judge whether the charging current of the energy storage device is greater than 2.2A when the cell voltage of the energy storage device is greater than 3V, or the total voltage of the energy storage device is greater than 24V. If the control device determines according to the charging parameter of the energy storage device that the charging current of the energy storage device is greater than 2.2A, indicating that the energy storage device can correctly exit the trickle charging mode and enter the normal large current charging mode when the power parameter is greater than the upper limit of the trickle charging range, it is determined that the trickle charging function of the energy storage device is qualified; if the control device determines according to the charging parameter of the energy storage device that the charging current of the energy storage device is less than or equal to 2.2A, indicating that the energy storage device does not correctly exit the trickle charging mode when the power parameter is greater than the upper limit of the trickle charging range and still remains in the small current charging mode, it is determined that the trickle charging function of the energy storage device is unqualified.

[0116] In this embodiment, before obtaining the power parameter of the energy storage device in real time, the energy storage device is controlled to stop charging to ensure that the power parameter can reflect the true state of the energy storage device. Before obtaining the power parameter of the energy storage device in real time, the model of the energy storage device is obtained, and according to the model of the energy storage device, the trickle charging parameter of the energy storage device is obtained to ensure that the fast detection system of the energy storage device can set the test conditions for the correct trickle charging function according to the specific characteristics of the energy storage device. By judging whether the power parameter reaches the first power threshold, if the power parameter reaches the first power threshold, the energy storage device is controlled to stop charging, so as to reduce energy consumption and environmental impact on the premise of meeting the test requirements of the trickle charging function, and improve the sustainability of the fast detection system of the energy storage device. In addition, by detecting whether the trickle charging function of the energy storage device is qualified according to the charging parameter and the trickle charging parameter, the fast detection system of the energy storage device can be applied to a variety of energy storage devices, ensuring that the test of the trickle charging function is targeted at the characteristics of specific energy storage devices and avoiding the deviation of using general test conditions. At the same time, the comparison of the charging parameter and the trickle charging parameter does not require manual intervention, shortening the detection cycle of the trickle charging function detection and improving the detection efficiency. By judging whether the charging current of the energy storage device is within the trickle range when the power parameter is within the trickle range, and whether the charging current of the energy storage device is greater than the upper limit value of the trickle range when the power parameter is greater than the upper limit value of the trickle range, it is detected whether the trickle charging function of the energy storage device is qualified, so as to realize a more comprehensive evaluation of the trickle charging function of the energy storage device and improve the accuracy and reliability of the trickle charging function test.

[0117] It should be understood that the various forms of the processes shown above can be used, steps can be reordered, added or deleted. For example, the steps described in the present invention can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions disclosed in the present invention can be achieved, and no limitation is made herein.

[0118] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rapid detection method for energy storage equipment, characterized in that: Used to detect the trickle charging function of the energy storage device; the rapid detection method includes: Acquire the power parameters of the energy storage device in real time; According to the electric quantity parameter, controlling the energy storage device to discharge; When the power parameter is in the trickle charging range, controlling the energy storage device to charge; When the energy storage device is charging, the charging parameters of the energy storage device are acquired and recorded in real time; wherein the charging parameters include the charging current and the power parameters; According to the charging parameters, it is detected whether the trickle charging function of the energy storage device is qualified.

2. The rapid detection method for energy storage equipment according to claim 1, characterized in that: The energy storage device comprises a plurality of battery cells; The power parameter includes at least one of the remaining power, total voltage, and cell voltage of the energy storage device.

3. The rapid detection method for energy storage equipment according to claim 1, characterized in that: According to the power parameter, controlling the energy storage device to discharge includes: When the electric quantity parameter is in a first electric quantity range, controlling the energy storage device to discharge with a first discharge current; when the electric quantity parameter is in a second electric quantity range, controlling the energy storage device to discharge with a second discharge current; The lower limit value of the first power range is greater than or equal to the upper limit value of the second power range, and the first discharge current is greater than the second discharge current.

4. The rapid detection method for energy storage equipment according to claim 3, characterized in that: The second power range is equal to the trickle charge range.

5. The rapid detection method for energy storage equipment according to claim 4, characterized in that: When the power parameter is within the trickle charge range, controlling the energy storage device to charge includes: When the electric quantity parameter is in the trickle charging range for the second time, the energy storage device is controlled to be charged.

6. The rapid detection method for energy storage equipment according to claim 1, characterized in that: When the power parameter is in the trickle charge range, after controlling the energy storage device to charge, the method further includes: Continue to control the energy storage device to discharge according to the power parameter until the charging power of the energy storage device reaches a first power threshold, and then control the energy storage device to stop discharging.

7. The rapid detection method for energy storage equipment according to claim 1, characterized in that: Before obtaining the power parameters of the energy storage device in real time, the method further includes: Control the energy storage device to stop charging.

8. The rapid detection method for energy storage equipment according to claim 1, characterized in that: Before obtaining the power parameters of the energy storage device in real time, the method further includes: Obtaining the model of the energy storage device, and obtaining the trickle charging parameters of the energy storage device according to the model of the energy storage device; the trickle charging parameters include a trickle charging range and a trickle current range; According to the charging parameters, detecting whether the trickle charging function of the energy storage device is qualified includes: According to the charging parameter and the trickle charging parameter, it is detected whether the trickle charging function of the energy storage device is qualified.

9. The rapid detection method for energy storage equipment according to claim 8, characterized in that: According to the charging parameter and the trickle charging parameter, detecting whether the trickle charging function of the energy storage device is qualified includes: Determining whether the charging current of the energy storage device is within the trickle charge range when the power parameter is within the trickle charge range; If the charging current of the energy storage device is not within the trickle charging range when the power parameter is within the trickle charging range, it is determined that the trickle charging function of the energy storage device is unqualified.

10. The rapid detection method for energy storage equipment according to claim 8, characterized in that: According to the charging parameter and the trickle charging parameter, detecting whether the trickle charging function of the energy storage device is qualified also includes: If the charging current of the energy storage device is in the trickle range when the power parameter is in the trickle charging range, then determining whether the charging current of the energy storage device is greater than the upper limit value of the trickle range when the power parameter is greater than the upper limit value of the trickle charging range; If, when the electric quantity parameter is greater than the upper limit of the trickle charging range, the charging current of the energy storage device is greater than the upper limit of the trickle charging range, it is determined that the trickle charging function of the energy storage device is qualified; If the charging current of the energy storage device is less than or equal to the upper limit of the trickle range when the power parameter is greater than the upper limit of the trickle charging range, it is determined that the trickle charging function of the energy storage device is unqualified.

11. The rapid detection method for energy storage equipment according to claim 1, characterized in that: When the power parameter is in the trickle charge range, after controlling the energy storage device to charge, the method further includes: Determining whether the power parameter reaches a first power threshold; If the power parameter reaches a first power threshold, the energy storage device is controlled to stop charging.

12. A rapid detection system for energy storage equipment, characterized in that: Used to detect the trickle charging function of energy storage equipment; the rapid detection system includes: a power module, a charging switch, a discharging switch, a load and a control device; The DC output end of the power module is electrically connected to the first end of the charging switch, and the second end of the charging switch is used to connect to the first power supply end of the energy storage device; the control end of the charging switch is electrically connected to the first control output end of the control device; The first end of the discharge switch is used to connect to the power supply end of the energy storage device, and the second end of the discharge switch is electrically connected to the second power supply end of the load; the control end of the discharge switch is electrically connected to the second control output end of the control device; The control device also includes a first communication terminal, which is used to communicate with the second communication terminal of the energy storage device; the control device is used to execute the rapid detection method of the energy storage device according to any one of claims 1-11.

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