Remote capacity checking test system, method and device for storage battery

Abstract

The invention discloses a remote capacity checking test system, method and device for a storage battery. The system comprises a power supply module, a capacity checking discharge control module, a data acquisition module and a circuit protection module, and the power supply module is used for providing electric energy for the capacity checking discharge control module, the data acquisition module and the circuit protection module through a direct current bus; the capacity checking discharge control module is used for responding to a capacity checking instruction sent by the remote monitoring center and carrying out capacity checking test on the storage battery according to the capacity checking instruction; the data acquisition module is used for acquiring the electric power parameters and the discharge duration of the storage battery in the process of carrying out the capacity check test on the storage battery, and transmitting the electric power parameters and the discharge duration to the remote monitoring center; and the circuit protection module is used for protecting the test circuit in the process of carrying out the capacity check test on the storage battery. The technical problem that the capacity of the storage battery in the power distribution network switch cabinet cannot be detected according to regulations is solved.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to a remote core capacity testing system, method and device for a storage battery. Background Art

[0002] At present, batteries provide reliable DC power supply for signal protection, automatic devices and emergency lighting in distribution network switch cabinets. The reliability of batteries plays a vital role in the safe operation of distribution network switch cabinets. According to the regulations of the power industry, a full-capacity verification discharge test should be carried out for newly installed or overhauled batteries during acceptance, and a full-capacity verification discharge test should be carried out at least once every two years thereafter. For batteries that have been in operation for four years, a full-capacity verification discharge test should be carried out once a year.

[0003] In the related art, the batteries in the distribution network switch cabinets are usually subjected to verification discharge tests by operation and maintenance personnel. However, due to the increase in the number of switch cabinets in the distribution network, the limited operation and maintenance personnel are unable to perform a long-term verification discharge test at least once a year at each site, resulting in the lack of capacity monitoring of the batteries in the distribution network switch cabinets. There is a technical problem that the capacity of the batteries in the distribution network switch cabinets cannot be detected as required.

[0004] With respect to the above-mentioned technical problem that the capacity of the battery in the switch cabinet of the distribution network cannot be detected according to regulations, no effective solution has been proposed so far. Summary of the invention

[0005] The embodiments of the present invention provide a remote capacity testing system, method and device for a battery, so as to at least solve the technical problem in the related art that the capacity of a battery in a distribution network switch cabinet cannot be detected as required.

[0006] According to one aspect of an embodiment of the present invention, a remote core capacity test system for a battery is provided, the system comprising: a power module, a core capacity discharge control module, a data acquisition module and a circuit protection module, wherein the power module is used to provide power to the core capacity discharge control module, the data acquisition module and the circuit protection module through a DC bus; the core capacity discharge control module is used to respond to a core capacity instruction sent by a remote monitoring center, and perform a capacity verification test on the battery according to the core capacity instruction; the data acquisition module is used to collect power parameters and discharge duration of the battery during the process of performing a capacity verification test on the battery, and transmit the power parameters and discharge duration to the remote monitoring center; the circuit protection module is used to protect the test circuit during the process of performing a capacity verification test on the battery.

[0007] Optionally, the power module includes: an AC power supply and an AC-DC converter, the AC power supply is used to provide AC power; the AC-DC converter is connected to the AC power supply and is used to convert the AC power into DC power.

[0008] Optionally, the core capacity discharge control module includes: a battery, a DC boost circuit, a constant current control circuit and an energy consumption resistor, the battery is used to switch from a charging state to a discharging state when the power module stops providing power; the DC boost circuit is connected to the battery, and is used to increase the battery voltage to a level higher than the DC bus voltage during a capacity verification test of the battery; the constant current control circuit is connected to the battery, and is used to adjust the discharge current during a capacity verification test of the battery; the energy consumption resistor is connected to the battery, and is used to consume excess electrical energy of the battery during a capacity verification test of the battery, wherein the excess electrical energy is used to characterize the remaining electrical energy of the battery after being used by the load.

[0009] Optionally, the data acquisition module includes: a data collector and an integrated controller, the data collector being used to collect power parameters and discharge duration of the battery during a capacity verification test of the battery, wherein the power parameters include at least the discharge voltage and discharge current of the battery; the integrated controller being connected to the data collector and being used to transmit the power parameters and discharge duration of the battery collected by the data collector to a remote monitoring center.

[0010] Optionally, the circuit protection module includes: a normally closed contactor and a diode, one end of the normally closed contactor is connected to the DC bus, and the other end of the normally closed contactor is connected to the battery, and when the battery is in normal operation, the normally closed contactor is in a closed state, and when the battery is in a capacity verification test state, the normally closed contactor is in an open state; the positive pole of the diode is connected to the positive pole of the battery, and the negative pole of the diode is connected to the DC bus, which is used to prevent the current from flowing in reverse during the capacity verification test of the battery.

[0011] According to another aspect of an embodiment of the present invention, a remote capacity test method for a battery is also provided. The method comprises: in response to receiving a capacity command from a remote monitoring center, controlling the power module to stop providing power to the capacity discharge control module, and controlling the capacity discharge control module to start a capacity verification test on the battery; in the process of performing a capacity verification test on the battery, controlling the data acquisition module to collect the power parameters and discharge duration of the battery, and controlling the circuit protection module to protect the test circuit; in response to the power parameter reaching a preset value and the discharge duration reaching a preset duration, controlling the capacity discharge control module to end the capacity verification test on the battery; transmitting the power parameter and discharge duration to the remote monitoring center, wherein the remote monitoring center is used to evaluate the actual capacity of the battery according to the power parameter and discharge duration.

[0012] Optionally, the core capacity discharge control module is controlled to start a capacity verification test on the battery, including: controlling the DC boost circuit in the core capacity discharge module to increase the voltage of the battery to be higher than the DC bus voltage; controlling the constant current control circuit in the core capacity discharge module to adjust the discharge current of the battery; controlling the energy consumption resistor in the core capacity discharge module to consume excess electrical energy of the battery, wherein the excess electrical energy is used to characterize the remaining electrical energy of the battery after being used by the load.

[0013] According to another aspect of an embodiment of the present invention, a remote capacity test device for a battery is also provided. The device includes: a first control unit, which is used to control the power module to stop providing power to the capacity discharge control module in response to receiving a capacity instruction from a remote monitoring center, and control the capacity discharge control module to start a capacity verification test on the battery; a second control unit, which is used to control the data acquisition module to collect the power parameters and discharge duration of the battery during the capacity verification test on the battery, and control the circuit protection module to protect the test circuit; a third control unit, which is used to control the capacity discharge control module to end the capacity verification test on the battery in response to the power parameters reaching a preset value and the discharge duration reaching a preset duration; a transmission unit, which is used to transmit the power parameters and discharge duration to the remote monitoring center, wherein the remote monitoring center is used to evaluate the actual capacity of the battery according to the power parameters and discharge duration.

[0014] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the remote capacity testing method of the battery in the embodiment of the present invention.

[0015] According to another aspect of the embodiment of the present invention, a processor is provided, which is used to run a program, wherein when the program is run, the remote capacity test method of the storage battery in the embodiment of the present invention is executed.

[0016] According to another aspect of the embodiment of the present invention, a computer program product is provided, which includes computer instructions, and when the computer instructions are executed by a processor, the remote capacity test method of the storage battery in the embodiment of the present invention is implemented.

[0017] In an embodiment of the present invention, a remote core capacity test system for a battery is provided, the system comprising: a power module, a core capacity discharge control module, a data acquisition module and a circuit protection module, wherein the power module is used to provide power to the core capacity discharge control module, the data acquisition module and the circuit protection module through a DC bus; the core capacity discharge control module is used to respond to a core capacity instruction issued by a remote monitoring center, and perform a capacity verification test on the battery according to the core capacity instruction; the data acquisition module is used to collect power parameters and discharge duration of the battery during the process of performing the capacity verification test on the battery, and transmit the power parameters and discharge duration to the remote monitoring center; the circuit protection module is used to protect the test circuit during the process of performing the capacity verification test on the battery. That is to say, in an embodiment of the present invention, the remote capacity test system of the battery includes a power module, a capacity discharge control module, a data acquisition module and a circuit protection module, wherein the capacity discharge control module can perform a capacity verification test on the battery after receiving the capacity verification instruction sent by the remote monitoring center. During the process of the capacity discharge control module performing the capacity verification test on the battery, the data acquisition module can collect the power parameters and discharge time of the battery in real time, and transmit them to the remote monitoring center, so that the remote monitoring center can accurately analyze and make decisions on the capacity and health status of the battery, and during the process of performing the capacity verification test on the battery, the circuit protection module can protect the test circuit, effectively preventing the current reverse flow and circuit overload during the test, and ensuring the safety of the battery and the entire test circuit. That is to say, in the remote capacity test system of the battery, the capacity verification test can be automatically performed on the battery by sending the capacity verification instruction through the remote monitoring center, without the participation of operation and maintenance personnel, thereby improving the detection efficiency and safety, and thus solving the technical problem that the capacity of the battery in the distribution network switch cabinet cannot be detected as required in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 is a schematic diagram of a remote core capacity testing system for a battery according to an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of another remote core capacity testing system for a battery according to an embodiment of the present invention;

[0021] Figure 3 is a flow chart of another method for remote core capacity testing of a battery according to an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of a DC boost type remote automatic nuclear capacity device according to an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of an AC feedback type remote automatic nuclear capacity device according to an embodiment of the present invention;

[0024] Figure 6 Schematic diagram of a remote core capacity testing device for a battery according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] 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 are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, functional component or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, functional components or devices.

[0027] According to an embodiment of the present invention, a remote nuclear capacity testing system for a battery is provided. Figure 1 FIG. 1 is a schematic diagram of a remote core capacity test system for a battery according to an embodiment of the present invention. Figure 1 As shown, the remote nuclear capacity test system 100 includes: a power supply module 101 , a nuclear capacity discharge control module 102 , a data acquisition module 103 and a circuit protection module 104 .

[0028] The power supply module 101 is used to provide electric energy to the core capacity discharge control module, the data acquisition module and the circuit protection module through the DC bus; the core capacity discharge control module 102 is used to respond to the core capacity instruction sent by the remote monitoring center, and perform a capacity verification test on the battery according to the core capacity instruction; the data acquisition module 103 is used to collect the power parameters and discharge time of the battery during the process of performing the capacity verification test on the battery, and transmit the power parameters and discharge time to the remote monitoring center; the circuit protection module 104 is used to protect the test circuit during the process of performing the capacity verification test on the battery.

[0029] In this embodiment, when the battery is in normal working state, the power module 101 is used to provide stable DC power to each module in the system through the DC bus, including the core capacity discharge control module, the data acquisition module and the circuit protection module, to ensure that each module can operate normally. For example, the power module is used to convert the AC power input from the AC power source into DC power through an AC / DC converter (AC / DC converter), and then provide it to the core capacity discharge control module, the data acquisition module and the circuit protection module.

[0030] Optionally, when performing a battery capacity verification test, it is necessary to simulate the battery's power supply capacity in an actual emergency situation, so the power module will stop supplying power to the core capacity discharge control module, the data acquisition module, and the circuit protection module. At this time, the battery is used as a DC power supply to undertake the discharge task during the test, and also to supply power to the core capacity discharge control module, the data acquisition module, and the circuit protection module. This setting can more realistically evaluate the capacity and performance of the battery under actual discharge conditions.

[0031] Optionally, the core capacity discharge control module 102 controls the discharge process of the battery to ensure that the test is performed in accordance with the constant current discharge required by the industry standard. The data acquisition module monitors and records the key parameters of the battery such as voltage, current, and discharge time in real time, which are essential for evaluating the actual capacity of the battery. The circuit protection module continues to work throughout the test process to protect the remote core capacity test system of the battery from possible circuit failures or abnormal conditions, ensuring the safety of the test process.

[0032] Optionally, the remote monitoring center is used to send a capacity verification instruction to instruct the capacity discharge control module to start a capacity verification test on the battery, wherein the remote monitoring center can remotely communicate with the capacity discharge control module through a network or a dedicated communication line, send a capacity verification instruction to the capacity discharge control module, and remotely monitor and collect data on the test process, thereby avoiding the need for manual on-site operation and improving detection efficiency and safety.

[0033] Optionally, the core capacity discharge control module 102 is the core for performing the capacity verification test of the battery, and is used to respond to the core capacity instruction sent by the remote monitoring center and control the battery to perform a discharge test. By accurately controlling the discharge current and monitoring the discharge process, the actual capacity of the battery can be evaluated to see whether it meets the industry standard requirements. In the present invention, the core capacity discharge control module 102 integrates a DC / DC boost circuit (Di rect Current to Di rect Current Boost Converter Ci rcu it, referred to as a DC / DC boost circuit) and a MOS tube constant current control circuit, which can ensure that the discharge process meets the specifications of constant current discharge, while consuming excess current through energy consumption resistors to avoid the problem of too small current.

[0034] Optionally, the data acquisition module 103 is used to collect the power parameters (such as discharge current, discharge voltage, temperature and other parameters) and discharge duration of the battery during the capacity verification test of the battery, which are essential for evaluating the capacity and health status of the battery. After the data acquisition module collects the power parameters and discharge duration of the battery during the capacity verification test, the collected power parameters and discharge duration can be transmitted to the remote monitoring center in real time, so that the remote monitoring center can analyze and record them.

[0035] Optionally, the circuit protection module 104 is used to provide safety protection for the test circuit during the test process. For example, during the core capacity discharge test of the battery, when the test stops, the diode can prevent the load current from suddenly flowing back to the battery. Such backflow may cause additional burden to the battery in the discharge state, and even damage the internal structure of the battery.

[0036] In this system, by allowing the battery to play the role of both the test object and the power supplier in the test, the battery's remote nuclear capacity testing system can more comprehensively and accurately evaluate the battery's health status and capacity, ensuring that the battery can operate reliably in the distribution network switch cabinet.

[0037] Next, the remote nuclear capacity testing system of the battery is further introduced.

[0038] As an optional implementation, the power module includes: an AC power supply and an AC-DC converter, the AC power supply is used to provide AC power; the AC-DC converter is connected to the AC power supply and is used to convert AC power into DC power.

[0039] In this embodiment, when the battery is in a charging state, the power module provides power to the capacity discharge control module, the data acquisition module and the circuit protection module in the remote automatic capacity verification device of the battery. When the battery is in the capacity verification test process, the power module will stop supplying power.

[0040] For example, Figure 2 is a schematic diagram of another remote core capacity testing system for a battery according to an embodiment of the present invention. Figure 2 As shown, the power module 101 includes: an AC power supply 1011 and an AC-DC converter 1012, wherein the AC power supply 1011 is connected to the AC-DC converter, and the AC power output by the AC power supply 1011 can be converted into DC power after passing through the AC-DC converter 1012.

[0041] Optionally, when performing a capacity verification test on the battery, the power module will stop supplying power and the battery will serve as a DC power source instead. However, during non-test periods, the stable supply of DC power from the power module is essential for maintaining the operating state of the system. Through such a power conversion mechanism, the device can adapt to different operating modes, and can obtain power from the grid under normal circumstances, and can also rely on the power of the battery to operate in test mode.

[0042] As an optional implementation, the core capacity discharge control module includes: a battery, a DC boost circuit, a constant current control circuit and an energy consumption resistor, the battery is used to switch from a charging state to a discharging state when the power module stops providing power; the DC boost circuit is connected to the battery and is used to increase the battery voltage to a level higher than the DC bus voltage during a capacity verification test of the battery; the constant current control circuit is connected to the battery and is used to adjust the discharge current during a capacity verification test of the battery; the energy consumption resistor is connected to the battery and is used to consume excess electrical energy of the battery during a capacity verification test of the battery, wherein the excess electrical energy is used to characterize the remaining electrical energy of the battery after being used by the load.

[0043] In this embodiment, the core capacity discharge control module is the core part of the capacity verification test of the battery, which is used to control and manage the discharge process of the battery to ensure the accuracy and safety of the capacity verification test of the battery.

[0044] Optionally, during the test, the battery switches from a charging state to a discharging state. That is, the battery will serve as a power source to provide power to other modules in the battery remote capacity verification test system and external loads. In the capacity verification test, the discharge capability of the battery is the key to evaluating its capacity and health status.

[0045] Optionally, a DC boost circuit is connected to a battery, and its main function is to increase the output voltage of the battery to a level higher than the DC bus voltage in the system during the test. This ensures that even when the load demand is small, the test current can reach the constant current discharge current (such as I10) required by the industry standard. The DC boost circuit ensures the current stability and test accuracy during the test by adjusting the output voltage. The DC boost circuit can be a DC / DC DC boost circuit.

[0046] Optionally, a constant current control circuit is also connected to the battery, which is used to accurately adjust the discharge current during the capacity verification test of the battery to ensure that the discharge current remains at a constant level required by industry standards. This can be achieved by controlling the conduction state of specific electronic components (such as Metal Oxide-Semiconductor Field-Effect Transistor (MOS)) in the control circuit to maintain a stable current output. Constant current control is a key step in evaluating the capacity of a battery, because only by discharging at a constant current can the discharge time of the battery be accurately measured, and then its actual capacity can be calculated.

[0047] Optionally, by combining a DC boost circuit with a constant current control circuit, it is ensured that the battery can be discharged at a standard constant current I10 (10 hour rate discharge current) during the nuclear capacity test, meeting industry standard requirements and ensuring the reliability of the test results.

[0048] Optionally, the energy dissipation resistor is a component used to consume excess power of the battery in the test circuit for the battery capacity verification test. During the test, the discharge current of the battery may be greater than the current actually required by the load. In order to meet the requirements of the constant current discharge test, this excess current needs to be consumed on the energy dissipation resistor and converted into heat energy release. This can not only ensure the constancy of the test current, but also avoid current waste or excessive burden on other circuit components.

[0049] Alternatively, if Figure 2As shown, the core capacity discharge control module 102 includes a battery 1021, a DC boost circuit 1022, a constant current control circuit 1023, and an energy consumption resistor 1024. The core capacity discharge control module 102 realizes accurate discharge control of the battery through the coordinated work between the battery 1021, the DC boost circuit 1022, the constant current control circuit 1023, and the energy consumption resistor 1024, ensuring the constancy of the current during the test, while also safely handling excess electrical energy, providing efficient and accurate capacity testing capabilities for the remote automatic core capacity device. This design not only meets the testing requirements of industry standards, but also reduces costs by using energy consumption resistors instead of expensive grid-connected inverters, allowing remote automatic core capacity technology to be widely promoted in the field of massive distribution network switch cabinets.

[0050] As an optional implementation, the data acquisition module includes: a data collector and an integrated controller, the data collector being used to collect power parameters and discharge duration of the battery during a capacity verification test of the battery, wherein the power parameters include at least the discharge voltage and discharge current of the battery; the integrated controller being connected to the data collector and being used to transmit the power parameters and discharge duration of the battery collected by the data collector to a remote monitoring center.

[0051] In this embodiment, the data acquisition module is used to monitor and record the key parameters of the battery during the capacity verification test in real time, and transmit these data to the remote monitoring center for analysis and processing. The module consists of two main parts: a data collector and an integrated controller. The data collector and the integrated controller work together to ensure accurate data collection and efficient transmission.

[0052] Optionally, the data logger is used to collect and record the power parameters of the battery in real time during the battery capacity verification test. These power parameters include at least discharge voltage and discharge current, and may also include other indicators such as temperature and internal resistance. Discharge voltage and discharge current are two basic parameters for evaluating battery capacity and health status. By monitoring the changes in battery voltage and current during discharge, its discharge characteristics can be analyzed and the actual capacity of the battery can be calculated. Data loggers usually contain high-precision sensors and circuits that can accurately measure these parameters and digitize the data.

[0053] Optionally, the integrated controller is closely connected to the data collector to receive and process data such as power parameters and discharge duration obtained from the data collector. The integrated controller may include a microprocessor or a microcontroller that can perform data processing, storage and transmission tasks. In this embodiment, the main function of the integrated controller is to transmit the collected data to a remote monitoring center through a communication network (such as a wireless or wired network) so that the operation and maintenance personnel can remotely analyze the performance status of the battery and promptly discover and solve potential problems.

[0054] Alternatively, if Figure 2 As shown, the data acquisition module 103 includes a data acquisition unit 1031 and an integrated controller 1032, wherein the data acquisition unit 1031 and the integrated controller (Data Transmission Unit, referred to as DTU) 1032 can also be understood as part of the external load, wherein the integrated controller can be. Through the efficient operation of the data acquisition module, the remote automatic capacity verification system of the battery can automatically complete the data collection of the battery capacity test without manual intervention, which greatly improves the accuracy and efficiency of the test. At the same time, through the remote transmission function, it realizes the centralized management and monitoring of many batteries in the distribution network switch cabinet, which is of great significance for preventing power system failures caused by insufficient battery capacity. This design enables operation and maintenance personnel to respond more quickly and take timely measures to maintain and replace batteries, thereby ensuring the stable operation of the distribution network and the reliability of power supply.

[0055] As an optional implementation, the circuit protection module includes: a normally closed contactor and a diode, one end of the normally closed contactor is connected to the DC bus, and the other end of the normally closed contactor is connected to the battery, and when the battery is in normal operation, the normally closed contactor is in a closed state, and when the battery is in a capacity verification test state, the normally closed contactor is in an open state; the positive pole of the diode is connected to the positive pole of the battery, and the negative pole of the diode is connected to the DC bus, which is used to prevent the current from flowing in reverse during the capacity verification test of the battery.

[0056] In this embodiment, the circuit protection module is used in the remote nuclear capacity testing system of the battery to protect the circuit and ensure the important duty of the safe operation of the remote nuclear capacity testing system of the battery. It is composed of two key components, a normally closed contactor and a diode, which work together to protect the circuit from damage under different operating conditions.

[0057] Optionally, the normally closed contactor is an electronic switch used to control the on and off of a circuit, and under normal circumstances, the contacts of the normally closed contactor are in a closed state by default. In this embodiment, one end of the normally closed contactor is connected to the DC bus and the other end is connected to the battery. When the battery is in normal operation, the normally closed contactor remains closed, allowing current to flow from the DC bus to the battery, and also allowing the battery to supply power to the load. However, when performing a capacity verification test, in order to ensure the accuracy of the test and the safety of the system, the normally closed contactor will be disconnected by the control signal of the remote automatic capacity verification device. This cuts off the direct connection between the battery and the load, ensuring that the current will not affect the load or other circuit components during the test.

[0058] Optionally, a diode is an electronic component with unidirectional conductivity, which is usually used in a circuit to prevent reverse flow of current, that is, when the current tries to pass in the reverse direction, the diode will prevent this process. In this embodiment, the positive pole of the diode is connected to the positive pole of the battery, and the negative pole is connected to the DC bus. This connection method ensures that during the capacity verification test of the battery, even if the AC power supply is suddenly interrupted, the current will not flow back from the battery to the DC bus or the AC power grid, thereby protecting the safety and stability of the system. This function of the diode is particularly critical in preventing circuit failures and protecting the battery from reverse current shocks.

[0059] Alternatively, if Figure 2 As shown, the normally closed contactor 1041 included in the circuit protection module 104 is connected in parallel with the diode 1042, and these two components together ensure the safety and accuracy of the remote automatic capacity verification system of the battery when performing capacity verification testing. By controlling the on-off state of the contactor, the current path during the test can be effectively isolated to avoid interference with the load and other parts of the circuit. At the same time, the presence of the diode further enhances the protection capability of the circuit, prevents the reverse flow of current, and ensures the safety and stability of the entire system under various operating conditions. This design is of great significance for maintaining the normal operation of the distribution network and ensuring the reliability of power supply.

[0060] According to an embodiment of the present invention, an embodiment of a remote capacity testing method for a battery is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0061] Figure 3 is a flow chart of a remote core capacity testing method for a battery according to an embodiment of the present invention. Figure 3 As shown, the method may include the following steps:

[0062] Step S301, in response to receiving a capacity verification instruction from a remote monitoring center, controlling the power supply module to stop providing power to the capacity verification control module, and controlling the capacity verification control module to start a capacity verification test on the battery.

[0063] In the technical solution provided in the above step S301 of the present invention, according to the electric power industry standard, when the monitoring center determines that the battery in a specific switch cabinet needs to be tested for capacity verification, the monitoring center can send a capacity verification instruction to the remote capacity verification test system of the battery at the site where the switch cabinet is located. The capacity verification instruction includes a command to start the test, and possible test parameters, such as expected discharge current, test duration, etc.

[0064] Optionally, the power module is usually used in the remote nuclear capacity test system of the battery to power the nuclear capacity discharge control module to ensure its normal operation. However, when performing a capacity verification test on the battery, in order to accurately evaluate the discharge characteristics of the battery, the remote nuclear capacity test system of the battery must ensure that the discharge current of the battery is not affected by an external power source. Therefore, when the remote nuclear capacity test system of the battery receives the nuclear capacity instruction, the power module is controlled to stop supplying power to the nuclear capacity discharge control module, making the battery the only power source in the system to ensure the accuracy and reliability of the test.

[0065] Optionally, after the power module stops supplying power, the remote core capacity test system of the battery will control the core capacity discharge control module to start the capacity verification test of the battery. The core capacity discharge control module includes key components such as a DC boost circuit, a constant current control circuit, and an energy consumption resistor. During the test, the DC boost circuit increases the voltage of the battery to a level higher than the DC bus voltage to ensure that the constant current discharge test condition can be achieved even when the load demand is low. The constant current control circuit adjusts the discharge current through the MOS tube to ensure that it meets the constant current level required by industry standards. At the same time, the energy consumption resistor consumes excess current to avoid current waste and maintain the constant current state of the test. The entire process is automatically controlled by an integrated controller, which collects the power parameters and discharge duration of the battery, and uploads the data to the remote monitoring center for analysis.

[0066] In this step, the remote automatic nuclear capacity test system can respond to the instructions of the remote monitoring center, automatically stop the external power supply, and start the internal nuclear capacity discharge control process, so as to perform accurate capacity verification tests on the battery. This automated operation not only improves the efficiency and accuracy of the test, but also reduces the need for manual intervention, which is of great significance for maintaining the stable operation of the distribution network and improving the operation and maintenance management level of the power system.

[0067] Step S302, during the capacity verification test of the battery, the data acquisition module is controlled to collect the power parameters and discharge time of the battery, and the circuit protection module is controlled to protect the test circuit.

[0068] In the technical solution provided in the above step S302 of the present invention, during the process of capacity verification test on the battery, the remote capacity verification test system of the battery needs to ensure the accuracy and safety of the test, which will involve two key modules: a data acquisition module and a circuit protection module.

[0069] Optionally, the data acquisition module is used to monitor and record in real time various power parameters of the battery during the test, including but not limited to discharge voltage, discharge current, discharge duration, etc., as well as possible additional indicators such as temperature and internal resistance. These parameters are crucial for evaluating the actual capacity and health status of the battery. The data collector can accurately measure these parameters through high-precision sensors and circuits, and digitize the data for subsequent processing and transmission. The integrated controller is closely connected to the data collector. It receives the collected power parameters and discharge duration data, performs preliminary processing and storage, and uploads the data to the remote monitoring center through the communication network for operation and maintenance personnel to remotely analyze the performance status of the battery.

[0070] Optionally, the circuit protection module is used to protect the test circuit during the test, and the circuit protection module protects the test circuit by controlling the normally closed contactor and using a diode. The normally closed contactor remains closed under normal power supply, allowing current to flow from the DC bus to the battery, and the battery to supply power to the load. However, at the beginning of the capacity verification test, the normally closed contactor will be disconnected to isolate the battery and the load, so that when the load demand changes, the battery still maintains constant current discharge, that is, the crude battery meets the constant current discharge condition during the capacity verification test.

[0071] Optionally, the positive pole of the diode is connected to the positive pole of the battery, and the negative pole is connected to the DC bus. Its function is to prevent the current from flowing in reverse during the test. Even if the AC power supply is suddenly interrupted, the current will not flow back from the battery to the DC bus or the AC power grid, thereby protecting the battery's remote nuclear capacity test system from the impact of reverse current and maintaining the safety of the test and the stability of the system.

[0072] In this step, the normally closed contactor creates a stable and isolated test environment in the remote nuclear capacity test system of the battery, ensuring that the remote nuclear capacity test of the battery can be accurately performed under constant current conditions, while protecting the remote test system and load of the battery from being affected by the current during the test, ensuring the safety and controllability of the entire test process.

[0073] Step S303, in response to the power parameter reaching a preset value and the discharge duration reaching a preset duration, the core capacity discharge control module is controlled to end the capacity verification test on the battery.

[0074] In the technical solution provided in the above step S303 of the present invention, in the capacity verification test of the battery, power parameters, especially the discharge voltage and discharge current of the battery, are important references for evaluating its capacity and health status. Industry standards or system settings will predefine a series of thresholds for power parameters. For example, when the discharge voltage drops to a certain value, it is generally believed that the battery has released most of its capacity and can no longer be discharged safely. When the data acquisition module detects that the discharge voltage of the battery drops to a preset threshold, it sends a signal to the integrated controller. In addition, based on industry standards, the battery should be discharged at a constant current I10, and the integrated controller will monitor whether the discharge current remains at a preset constant current level to ensure that the test complies with industry standards.

[0075] In this embodiment, the discharge duration is another important test parameter. According to industry standards, the battery capacity verification test usually needs to last for a specific time, such as 10 hours, to ensure the accuracy of the test results. The data acquisition module will continuously record the discharge process of the battery, including the time when the discharge starts and the duration of the discharge. When the discharge duration reaches the preset standard duration, the data acquisition module will send a corresponding signal to the integrated controller.

[0076] Optionally, when the integrated controller determines that the power parameter reaches a preset value and the discharge time reaches a preset time during the capacity verification test of the battery, it will control the core capacity discharge control module to stop discharging the battery. This usually involves controlling the MOS tube constant current control circuit to close, stop consuming excess current through the energy consumption resistor, and thus interrupt the discharge process of the battery. At the same time, the integrated controller will also control the normally closed contactor to close again, restore the connection between the battery and the DC bus, allow the battery to power the load again, and also be able to charge the battery through the charger to restore its power and complete the test process.

[0077] Step S304, transmitting the power parameters and discharge duration to a remote monitoring center.

[0078] In the technical solution provided in the above step S304 of the present invention, during the process of performing capacity verification test on the battery, the data acquisition module continuously monitors and records the power parameters of the battery, including but not limited to the discharge voltage, discharge current and battery temperature, as well as the discharge duration of the test. The data acquisition module obtains this information in real time through high-precision sensors and circuits, and digitizes it for easy processing and transmission.

[0079] Optionally, when the power parameter reaches a preset value and the discharge time reaches a preset time, the data acquisition module will transmit all the collected data, namely the power parameters of the battery and detailed discharge time records, to the remote monitoring center through the remote communication network.

[0080] Optionally, the remote monitoring center receives data transmitted by the data acquisition modules of each test site, analyzes and processes the data to evaluate the capacity and health status of the battery. The monitoring center can compare the received power parameters and discharge duration with the preset standard values ​​to determine whether the battery meets the capacity requirements and whether there are aging or performance degradation problems. Based on these analysis results, the monitoring center can further formulate maintenance plans, warn of potential failure risks in advance, and ensure the safe and reliable operation of the power system.

[0081] Optionally, remote transmission of data is essential for the operation of the remote automatic nuclear capacity test system. It realizes seamless connection between on-site test data and the remote monitoring center, greatly improving the efficiency of testing and the intelligent level of operation and maintenance. By real-time monitoring of data from each test site, the remote monitoring center can timely grasp the status of batteries in the distribution network, provide a scientific basis for power system operation and maintenance decisions, reduce power failures caused by insufficient battery capacity, and ensure the stability and safety of the power grid.

[0082] In the above steps S301 to S304, after receiving the capacity control instruction sent by the remote monitoring center, the power module can be automatically controlled to stop supplying power to the capacity discharge control module, thereby triggering the capacity verification test of the battery. During the test, the power parameters and discharge duration of the battery are monitored to ensure that the test conditions meet the industry standards. At the same time, the test circuit is protected in real time by the circuit protection module to prevent any potential circuit failure or safety risks, thereby maintaining the stability and safety of the test. When the power parameter reaches the preset threshold and the discharge duration meets the preset standard, the device can automatically stop the test to avoid damage to the battery caused by excessive discharge, and transmit the acquired power parameter and discharge duration data to the remote monitoring center in real time, providing the power system operation and maintenance personnel with instant and accurate battery status information, facilitating the rapid assessment of the actual capacity and health status of the battery, and timely formulating maintenance strategies to prevent power system failures caused by insufficient battery capacity. This automated, remote and standardized test process significantly improves the efficiency and accuracy of the capacity control test, reduces the operation and maintenance costs, and at the same time improves the safety and reliability of the distribution network, meeting the growing intelligent operation and maintenance needs of the power industry.

[0083] The above method of this embodiment is further introduced below.

[0084] As an optional implementation method, step S301, controlling the core capacity discharge control module to start a capacity verification test on the battery, including: controlling the DC boost circuit in the core capacity discharge module to increase the voltage of the battery to be higher than the DC bus voltage; controlling the constant current control circuit in the core capacity discharge module to adjust the discharge current of the battery; controlling the energy consumption resistor in the core capacity discharge module to consume excess electrical energy of the battery, wherein the excess electrical energy is used to characterize the remaining electrical energy of the battery after being used by the load.

[0085] In this embodiment, the DC boost circuit is controlled to increase the battery voltage to a level higher than the DC bus voltage during normal operation. The purpose of this operation is to ensure the normal operation of the load during the test, while separating the test discharge process of the battery from the load use process. When the battery voltage is higher than the DC bus voltage, the load will be directly powered by the battery without affecting the independence and accuracy of the test.

[0086] Optionally, by controlling the on-duty cycle of the MOS tube in the constant current control circuit, the discharge current of the battery is ensured to be constant at a preset I10 standard value (i.e., a constant current corresponding to a 10-hour discharge rate). Even if the load demand changes, it will not affect the constant current discharge test of the battery. This precise control ensures the reliability and accuracy of the test results and meets the requirements for constant current discharge in the power system.

[0087] Optionally, in addition to the discharge current that meets the load requirements, the discharge current of the battery during the capacity verification test may exceed the actual requirements of the load, and this excess energy will be consumed by the energy dissipation resistor. The function of the energy dissipation resistor is to convert electrical energy into heat energy to avoid wasting battery energy or causing interference to the system. By adjusting the power of the energy dissipation resistor, it can be ensured that the discharge current of the battery during the test reaches the current value preset by the constant current control circuit, while ensuring that the excess energy is safely released, avoiding damage to the battery caused by over-discharge.

[0088] The technical solution of the embodiment of the present invention is illustrated below in conjunction with preferred implementation modes.

[0089] At present, the capacity verification test of the batteries in the switch cabinets in the distribution network is usually performed by the operation and maintenance personnel. However, due to the large number of switch cabinets in the distribution network, the limited operation and maintenance personnel are unable to perform a 10-hour verification discharge test at each site at least once a year, resulting in the capacity monitoring of the distribution network switch cabinets being ineffective. Therefore, large-scale power outages caused by insufficient battery capacity often occur.

[0090] In the related art, a DC boost type remote automatic nuclear capacity device is provided, wherein the DC boost type remote automatic nuclear capacity device includes a normally closed contactor, a diode, a DC / DC direct current boost circuit, and an integrated controller. When the integrated controller receives the remote nuclear capacity instruction, it controls the normally closed contactor to open. After the normally closed contactor opening auxiliary contact signal returns, the DC boost circuit starts to work. The output of the DC boost circuit is higher than the DC bus voltage. At this time, the current of the switching power supply is zero, and the load current is all provided by the battery. The function of the device diode is to prevent the AC power supply from being suddenly interrupted during the discharge of the nuclear capacity. At this time, the nuclear capacity stops, and a power supply circuit is naturally formed between the load, the diode, and the battery, which does not affect the power supply of the load.

[0091] Figure 4 is a schematic diagram of a DC boost type remote automatic nuclear capacity device according to an embodiment of the present invention. Figure 4 As shown, the DC boost remote automatic capacity device includes a first AC power supply 401, a first AC-DC converter 402, a first load 403, a first normally closed contactor 404, a first diode 405, a first DC boost circuit 406, a first battery 407, a first data collector 408, and a first integrated controller 409. Under normal operating conditions, the first normally closed contactor remains in a closed state, the first battery and the first load are connected through a DC bus, and the first battery provides a stable DC power supply for the first load. When receiving a capacity test instruction from the remote monitoring center, the first integrated controller will control the first normally closed contactor to open, and at the same time start the first DC boost circuit to make the output voltage higher than the DC bus voltage. At this time, the first battery starts to discharge, and the current supplied to the first load is provided by the battery, while the current of the first AC-DC converter is zero. During the discharge process, the first diode prevents current backflow, ensures continuous power supply to the load, and forms a power supply circuit even when the AC power supply is interrupted. The first integrated controller monitors and records the discharge parameters of the battery in real time, including voltage, current and temperature. These data are uploaded to the remote monitoring center for analysis and processing after the test. According to the power industry standard requirements, the constant current discharge current of the battery pack should be I 10 (the current of the 10-hour discharge rate). However, the discharge current of the DC boost type remote automatic nuclear capacity device is determined by the load. Since the DC load of the distribution network is usually small, it is difficult to meet the I10 requirement. This results in the measured battery capacity being only used as a reference, but not certain, and unable to accurately reflect the actual health status of the battery.

[0092] In the related technology, there is also provided an AC feedback remote automatic nuclear capacity device, the working principle of which is roughly the same as that of the DC boost type, with the only difference being that in the AC feedback remote automatic nuclear capacity device, when the battery is discharged at nuclear capacity, it is fed back to the AC grid through a grid-connected inverter instead of supplying power to the load.

[0093] Figure 5 is a schematic diagram of an AC feedback remote automatic nuclear capacity device according to an embodiment of the present invention. Figure 5 As shown, the AC feedback remote automatic capacity device includes: a second AC power supply 501, a second AC-DC converter 502, a second load 503, a second normally closed contactor 504, a second diode 505, a grid-connected inverter 506, a second battery 507, a second data collector 508 and a second integrated controller 509.

[0094] However, the embodiment of the present invention proposes a low-cost distribution network switch cabinet battery digital remote automatic capacity verification device, such as Figure 3 As shown, on the basis of the DC boost type remote automatic capacity verification device, a constant current control circuit and an energy consumption resistor are added. By controlling the duty cycle of the MOS tube in the constant current control circuit, constant current control of the battery discharge can be achieved. The output voltage of the DC boost circuit is higher than the DC bus voltage. Part of the battery discharge current is used for the load, and the remaining current is consumed on the energy consumption resistor. By adding the constant current control circuit and the energy consumption resistor, in the process of conducting a capacity verification discharge test on the battery, the requirements of the power industry standard for constant current discharge can be met, and the high cost of using a grid-connected inverter can be reduced. It is a practical and fully popularizable remote automatic capacity verification technology for batteries in distribution network switch cabinets.

[0095] According to an embodiment of the present invention, a remote capacity testing device for a battery is also provided. It should be noted that the remote capacity testing device for a battery can be used to execute the remote capacity testing method for a battery in the first embodiment.

[0096] Figure 6 Schematic diagram of a remote core capacity test device for a battery according to an embodiment of the present invention. Figure 6 As shown, the remote capacity testing device 600 of a storage battery may include: a first control unit 601 , a second control unit 602 , a third control unit 603 and a transmission unit 604 .

[0097] The first control unit 601 is used to control the power supply module to stop providing power to the core capacity discharge control module in response to receiving the core capacity instruction from the remote monitoring center, and control the core capacity discharge control module to start the capacity verification test on the battery.

[0098] The second control unit 602 is used to control the data acquisition module to collect the power parameters and discharge time of the battery during the capacity verification test of the battery, and control the circuit protection module to protect the test circuit.

[0099] The third control unit 603 is used to control the core capacity discharge control module to end the capacity verification test of the battery in response to the power parameter reaching a preset value and the discharge time reaching a preset time.

[0100] The transmission unit 604 is used to transmit the power parameters and the discharge duration to the remote monitoring center, wherein the remote monitoring center is used to evaluate the actual capacity of the battery according to the power parameters and the discharge duration.

[0101] Optionally, the first control unit 601 is also used to: control the DC boost circuit in the core capacity discharge module to increase the voltage of the battery to a level higher than the DC bus voltage; control the constant current control circuit in the core capacity discharge module to adjust the discharge current of the battery; control the energy consumption resistor in the core capacity discharge module to consume excess electrical energy of the battery, wherein the excess electrical energy is used to characterize the remaining electrical energy in the battery after being used by the load.

[0102] In this device, after receiving the capacity control instruction sent by the remote monitoring center, the power module can be automatically controlled to stop supplying power to the capacity discharge control module, thereby triggering the capacity verification test of the battery. During the test, the power parameters and discharge duration of the battery are monitored to ensure that the test conditions meet the industry standards. At the same time, the circuit protection module protects the test circuit in real time to prevent any potential circuit failure or safety risks, thereby maintaining the stability and safety of the test. When the power parameters reach the preset threshold and the discharge duration meets the preset standard, the device can automatically stop the test to avoid damage to the battery caused by excessive discharge, and transmit the acquired power parameters and discharge duration data to the remote monitoring center in real time, providing the power system operation and maintenance personnel with instant and accurate battery status information, facilitating the rapid assessment of the actual capacity and health of the battery, and formulating maintenance strategies in a timely manner to prevent power system failures caused by insufficient battery capacity. This automated, remote and standardized test process significantly improves the efficiency and accuracy of capacity control testing, reduces operation and maintenance costs, and at the same time improves the safety and reliability of the distribution network, meeting the growing intelligent operation and maintenance needs of the power industry.

[0103] According to an embodiment of the present invention, a computer-readable storage medium is further provided. The storage medium includes a stored program, wherein the program executes the remote capacity testing method of a storage battery in the embodiment.

[0104] According to an embodiment of the present invention, a processor is further provided. The processor is used to run a program. When the program is run, the remote nuclear capacity testing method of the battery in the embodiment is executed.

[0105] According to another aspect of the present invention, a computer program product is provided, which includes computer instructions, and when the computer instructions are executed by a processor, the remote capacity test method of the storage battery in the embodiment is implemented.

[0106] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0107] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0108] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0109] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0110] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0111] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent functional component, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software functional component, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0112] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A remote nuclear capacity test system for a battery, characterized in that: include: Power supply module, nuclear capacity discharge control module, data acquisition module and circuit protection module, among which, The power supply module is used to provide power to the nuclear capacity discharge control module, the data acquisition module and the circuit protection module through a DC bus; The core capacity discharge control module is used to respond to the core capacity instruction sent by the remote monitoring center and perform a capacity verification test on the battery according to the core capacity instruction; The data acquisition module is used to collect power parameters and discharge duration of the battery during the capacity verification test of the battery, and transmit the power parameters and discharge duration to the remote monitoring center; The circuit protection module is used to protect the test circuit during the process of performing capacity verification test on the battery.

2. The system according to claim 1, characterized in that The power module includes: an AC power supply and an AC-DC converter. The AC power supply is used to provide AC power; The AC / DC converter is connected to the AC power source and is used to convert the AC power into DC power.

3. The system according to claim 1, characterized in that The core capacity discharge control module includes: the battery, a DC boost circuit, a constant current control circuit and an energy consumption resistor. The storage battery is used to switch from a charging state to a discharging state when the power module stops providing electrical energy; The DC boost circuit is connected to the battery and is used to increase the voltage of the battery to a level higher than the DC bus voltage during a capacity verification test of the battery. The constant current control circuit is connected to the battery and is used to adjust the discharge current during the capacity verification test of the battery; The energy consumption resistor is connected to the battery and is used to consume excess electric energy of the battery during a capacity verification test of the battery, wherein the excess electric energy is used to represent the remaining electric energy of the battery after being used by the load.

4. The system according to claim 1, characterized in that The data acquisition module includes: a data collector and an integrated controller, The data collector is used to collect the power parameters and the discharge duration of the battery during the capacity verification test of the battery, wherein the power parameters at least include the discharge voltage and discharge current of the battery; The integrated controller is connected to the data collector and is used to transmit the power parameters and the discharge duration of the battery collected by the data collector to the remote monitoring center.

5. The system according to claim 1, characterized in that The circuit protection module includes: a normally closed contactor and a diode, One end of the normally closed contactor is connected to the DC bus, and the other end of the normally closed contactor is connected to the battery. When the battery is in a normal operating state, the normally closed contactor is in a closed state, and when the battery is in a capacity verification test state, the normally closed contactor is in an open state. The positive electrode of the diode is connected to the positive electrode of the battery, and the negative electrode of the diode is connected to the DC bus, so as to prevent the current from flowing in reverse during the capacity verification test of the battery.

6. A remote nuclear capacity testing method for a battery, characterized in that: include: In response to receiving a capacity verification instruction from a remote monitoring center, controlling the power supply module to stop supplying power to the capacity discharge control module, and controlling the capacity discharge control module to start a capacity verification test on the battery; During the capacity verification test of the battery, the data acquisition module is controlled to collect the power parameters and discharge duration of the battery, and the circuit protection module is controlled to protect the test circuit; In response to the power parameter reaching a preset value and the discharge duration reaching a preset duration, controlling the core capacity discharge control module to end the capacity verification test on the battery; The power parameter and the discharge duration are transmitted to the remote monitoring center, wherein the remote monitoring center is used to evaluate the actual capacity of the battery according to the power parameter and the discharge duration.

7. The method according to claim 6, characterized in that Controlling the core capacity discharge control module to start a capacity verification test on the battery includes: Controlling the DC boost circuit in the core capacity discharge module to increase the voltage of the battery to a level higher than the DC bus voltage; Controlling the constant current control circuit in the core capacity discharge module to adjust the discharge current of the battery; The energy consumption resistor in the core capacity discharge module is controlled to consume the excess electric energy of the battery, wherein the excess electric energy is used to represent the remaining electric energy of the battery after being used by the load.

8. A remote nuclear capacity test device for a battery, characterized in that: include: A first control unit, configured to control the power supply module to stop supplying power to the core capacity discharge control module in response to receiving a core capacity instruction from the remote monitoring center, and control the core capacity discharge control module to start a capacity verification test on the battery; a second control unit, used to control the data acquisition module to collect the power parameters and discharge duration of the battery, and control the circuit protection module to protect the test circuit during the capacity verification test of the battery; a third control unit, configured to control the core capacity discharge control module to end the capacity verification test on the battery in response to the power parameter reaching a preset value and the discharge duration reaching a preset duration; A transmission unit is used to transmit the power parameter and the discharge duration to the remote monitoring center, wherein the remote monitoring center is used to evaluate the actual capacity of the battery according to the power parameter and the discharge duration.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the method according to any one of claims 6 to 7.

10. An electronic device, characterized in that: include: A memory storing an executable program; A processor, configured to run the program, wherein the program executes the method according to any one of claims 6 to 7 when running.

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