CN109921103B

CN109921103B - Maintenance method and system for storage battery pack and maintenance method and system for storage battery

Info

Publication number: CN109921103B
Application number: CN201711326222.2A
Authority: CN
Inventors: 慕家骁
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2017-12-13
Filing date: 2017-12-13
Publication date: 2021-05-18
Anticipated expiration: 2037-12-13
Also published as: CN109921103A

Abstract

The utility model provides a maintenance system and a method of a storage battery pack, a maintenance system and a method of a storage battery, relating to the technical field of storage battery maintenance, wherein the storage battery pack comprises a plurality of single storage batteries which are connected in series, and the plurality of single storage batteries at least comprise a head end single storage battery and a tail end single storage battery; the system comprises: the first detection modules are respectively arranged on each single storage battery and are used for detecting first operation parameter information of the corresponding single storage battery; the second detection module is arranged on the head end or the tail end single storage battery and used for detecting second operation parameter information of the storage battery pack; and the analysis processing module is used for determining the operation state of each single storage battery according to at least one of the first operation parameter information and the second operation parameter information, and performing corresponding maintenance processing when the operation of the single storage battery is abnormal.

Description

Maintenance method and system for storage battery pack and maintenance method and system for storage battery

Technical Field

The disclosure relates to the technical field of storage battery maintenance, in particular to a storage battery pack maintenance method and system and a storage battery maintenance method and system.

Background

With the advent of the internet era, the number of battery packs operated online by network operators is increasing. However, the number of professional maintenance personnel for the battery pack has not increased, resulting in inefficient maintenance of the battery pack.

Moreover, the current maintenance means and techniques for battery packs have been delayed, and most battery packs have not been maintained as they are. For example, the capacity test work of the storage battery pack is complex, the requirements on test technology and safety are high, special instruments and vehicles such as a discharge tester and a dummy load of the storage battery pack are needed, and at least more than 2-3 technicians are needed to participate. Therefore, most storage battery packs which are operated on line currently do not carry out the maintenance work of capacity testing.

For example, in a certain local network of a certain economically developed province, 3303 groups of storage battery packs which operate on line exist, but capacity test work of 5-6 groups of storage battery packs can be performed symbolically every year, and the test rate is less than 2 per thousand. Some operators in developed economic provinces contract the work of testing the capacity of the storage battery to a third party for testing. The capacity test work of the storage battery pack is not carried out at all in the less developed economic provinces, and only a specially assigned person is used for measuring the internal resistance and the voltage of the storage battery pack monomer, but the internal resistance and the voltage of the storage battery pack monomer cannot reflect the actual discharge capacity of the storage battery pack.

In recent years, each operator group company purchases a storage battery group in a unified manner, and in order to reduce the price, manufacturers seriously reduce the quality of the storage battery group and shorten the service life of the storage battery group. Failure to manage and maintain the batteries efficiently can lead to frequent battery failure. For example, if the storage battery pack has a problem, the storage battery pack cannot normally discharge after the mains supply fails, so that serious faults such as equipment power failure and communication network breakdown are caused.

Therefore, it is necessary to provide a technical solution to achieve effective maintenance of the battery pack.

Disclosure of Invention

One object of the present disclosure is: a maintenance scheme for a battery pack is provided.

According to an aspect of the embodiments of the present disclosure, there is provided a maintenance system of a battery pack, wherein the battery pack includes a plurality of single batteries connected in series, the plurality of single batteries including at least a head-end single battery and a tail-end single battery; the system comprises: the first detection modules are respectively arranged on each single storage battery and are used for detecting first operation parameter information of the corresponding single storage battery; the second detection module is arranged on the head end or the tail end single storage battery and used for detecting second operation parameter information of the storage battery pack; and the analysis processing module is used for determining the operation state of each single storage battery according to at least one of the first operation parameter information and the second operation parameter information, and performing corresponding maintenance processing when the operation of the single storage battery is abnormal.

In some embodiments, the first operating parameter information includes a voltage of the cell battery; the analysis processing module is used for: determining that the balance abnormality occurs to the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than a first preset voltage or less than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage; and sending a balance repairing instruction to the first detection module on the single storage battery with abnormal balance.

In some embodiments, the first detection module is further configured to, after receiving the equalization repairing instruction, perform the following operations when the battery pack is in a float state: discharging the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than the first preset voltage; and under the condition that the voltage of the single storage battery is less than the second preset voltage, performing supplementary charging on the corresponding single storage battery.

In some embodiments, the first operating parameter information includes a voltage of a cell battery, and the second operating parameter information includes a total current of the battery pack; the analysis processing module is used for: determining the internal resistance of each single storage battery according to the voltage of each single storage battery and the total current of the storage battery pack; determining that the internal resistance of the corresponding single storage battery is abnormal under the condition that the internal resistance of the single storage battery is larger than the preset internal resistance; and sending an internal resistance activation repairing instruction to a first detection module on the single storage battery with abnormal internal resistance.

In some embodiments, the first detection module is further configured to, after receiving the internal resistance activation repair instruction, perform the following operations when the battery pack is in a float state: taking direct current from the positive electrode and the negative electrode of the corresponding single storage battery, and converting the direct current into pulse alternating current; and supplying the pulse current to the anode and the cathode of the corresponding single storage battery so as to activate and repair the internal resistance of the corresponding single storage battery.

In some embodiments, the analysis processing module is further configured to: under the condition that the internal resistance of the single storage battery is smaller than a first threshold value, determining that the corresponding single storage battery has a short-circuit fault; determining that the corresponding single storage battery has an open-circuit fault under the condition that the internal resistance of the single storage battery is greater than a second threshold value; and alarming under the condition that the short circuit or open circuit fault of the corresponding single storage battery is determined.

In some embodiments, the second operating parameter information includes a total voltage, a discharge current, and a discharge duration of the battery pack; the system further comprises: the control module is used for sending a first control instruction to secondary power supply equipment under the condition that commercial power is normally supplied, so that the floating charge voltage for charging the storage battery pack is reduced to a voltage corresponding to a checking discharge capacity test or a voltage corresponding to a full capacity test, and the storage battery pack is enabled to discharge; the analysis processing module is used for calculating the discharge capacity of the storage battery pack according to the discharge current and the discharge time of the storage battery pack, or according to the total voltage, the discharge current and the discharge time of the storage battery pack; and instructing the control module to send a second control instruction to the secondary power supply equipment under the condition that the discharging termination condition is met so as to charge the storage battery pack.

According to another aspect of the embodiments of the present disclosure, there is provided a maintenance method of a battery pack, wherein the battery pack includes a plurality of single batteries connected in series, the plurality of single batteries including at least a head-end single battery and a tail-end single battery; the method comprises the following steps: the first detection module arranged on each single storage battery detects first operation parameter information of the corresponding single storage battery; a second detection module arranged on the head end or the tail end single storage battery detects second operation parameter information of the storage battery pack; determining the operation state of each single storage battery according to at least one of the first operation parameter information and the second operation parameter information; and carrying out corresponding maintenance treatment when the operation of the single storage battery is abnormal.

In some embodiments, the first operating parameter information includes a voltage of the cell battery; the determining the operation state of each cell battery according to at least one of the first operation parameter information and the second operation parameter information includes: determining that the balance abnormality occurs to the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than a first preset voltage or less than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage; the corresponding maintenance treatment under the condition that the operation of the single storage battery is abnormal comprises the following steps: and sending a balance repairing instruction to the first detection module on the single storage battery with abnormal balance.

In some embodiments, the method further comprises: after receiving the balance repairing instruction, the first detection module performs the following operations under the condition that the storage battery pack is in a floating state: discharging the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than the first preset voltage; and under the condition that the voltage of the single storage battery is less than the second preset voltage, performing supplementary charging on the corresponding single storage battery.

In some embodiments, the first operating parameter information includes a voltage of a cell battery, and the second operating parameter information includes a total current of the battery pack; the determining the operating state of each cell battery according to at least one of the first operating parameter information and the second operating parameter information further includes: determining the internal resistance of each single storage battery according to the voltage of each single storage battery and the total current of the storage battery pack; determining that the internal resistance of the corresponding single storage battery is abnormal under the condition that the internal resistance of the single storage battery is larger than the preset internal resistance; the corresponding maintenance processing is carried out under the condition that the operation of the single storage battery is abnormal, and the method further comprises the following steps: and sending an internal resistance activation repairing instruction to a first detection module on the single storage battery with abnormal internal resistance.

In some embodiments, the method further comprises: after receiving the internal resistance activation restoration instruction, the first detection module performs the following operations under the condition that the storage battery pack is in a floating state: taking direct current from the positive electrode and the negative electrode of the corresponding single storage battery, and converting the direct current into pulse alternating current; and supplying the pulse current to the anode and the cathode of the corresponding single storage battery so as to activate and repair the internal resistance of the corresponding single storage battery.

In some embodiments, the determining the operating state of each cell battery based on at least one of the first operating parameter information and the second operating parameter information further comprises: under the condition that the internal resistance of the single storage battery is smaller than a first threshold value, determining that the corresponding single storage battery has a short-circuit fault; determining that the corresponding single storage battery has an open-circuit fault under the condition that the internal resistance of the single storage battery is greater than a second threshold value; the corresponding maintenance processing is carried out under the condition that the operation of the single storage battery is abnormal, and the method further comprises the following steps: and alarming under the condition that the short circuit or open circuit fault of the corresponding single storage battery is determined.

In some embodiments, the second operating parameter information includes a total voltage, a discharge current, and a discharge duration of the battery pack; the method further comprises the following steps: under the condition that commercial power is normally supplied, a first control instruction is sent to secondary power supply equipment so as to adjust the float charging voltage for charging the storage battery to the voltage corresponding to the checking discharge capacity test or the voltage corresponding to the full capacity test, and therefore the storage battery is enabled to discharge; calculating the discharge capacity of the storage battery pack according to the discharge current and the discharge time of the storage battery pack, or according to the total voltage, the discharge current and the discharge time of the storage battery pack; and sending a second control instruction to the secondary power supply equipment to charge the storage battery pack when the discharging termination condition is met.

According to still another aspect of the embodiments of the present disclosure, there is provided a maintenance system of a storage battery, wherein the storage battery includes at least one cell storage battery; the system comprises: the detection module is arranged on the single storage battery and used for detecting the operation parameter information of the single storage battery; the analysis processing module is used for determining whether the operation of the single storage battery is abnormal or not according to the operation parameter information; carrying out corresponding maintenance treatment under the condition that the operation of the single storage battery is abnormal; wherein the operating parameter information comprises at least one of: and the voltage, the temperature, the current and the discharge time of the single storage battery.

According to still another aspect of the embodiments of the present disclosure, there is provided a maintenance method of a storage battery, wherein the storage battery includes at least one cell storage battery; the method comprises the following steps: the detection module arranged on the single storage battery detects the operation parameter information of the single storage battery; determining whether the operation of the single storage battery is abnormal or not according to the operation parameter information; carrying out corresponding maintenance treatment under the condition that the operation of the single storage battery is abnormal; wherein the operating parameter information comprises at least one of: and the voltage, the temperature, the current and the discharge time of the single storage battery.

In the embodiment of the disclosure, the first detection module may detect first operation parameter information of the single storage battery, the second detection module may detect second operation parameter information of the storage battery pack, and the analysis processing module may determine an operation state of each single storage battery according to at least one of the first operation parameter information and the second operation parameter information, and then perform corresponding maintenance processing under the condition that the operation of the single storage battery pack is abnormal, thereby implementing effective maintenance on the storage battery pack, and avoiding a communication network fault caused by a fault of the storage battery pack.

The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a maintenance system for a battery pack according to one embodiment of the present disclosure;

fig. 2 shows a schematic view of a single battery provided with a first detection module;

FIG. 3 shows a schematic diagram of a battery pack provided with a first detection module and a second detection module;

FIG. 4 illustrates a schematic diagram of a network topology in which a battery pack is located, according to one embodiment of the present disclosure;

FIG. 5 is a schematic flow chart diagram of a method of maintaining a battery pack according to one embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a maintenance system for a battery according to one embodiment of the present disclosure;

fig. 7 is a schematic flow chart diagram of a maintenance method of a battery according to one embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Fig. 1 is a schematic structural diagram of a maintenance system of a secondary battery pack according to one embodiment of the present disclosure. Here, the battery pack may include a plurality of unit batteries connected in series, the plurality of unit batteries may include at least a head-end unit battery and a tail-end unit battery, and other unit batteries may be further disposed between the head-end unit battery and the tail-end unit battery.

As shown in fig. 1, the maintenance system includes a plurality of first detection modules 101 (two are schematically shown in fig. 1), a second detection module 102, and an analysis processing module 103.

The plurality of first detection modules 101 are respectively disposed on each single storage battery, and each first detection module 101 is configured to detect first operation parameter information of a corresponding single storage battery, and send the first operation parameter information to the analysis processing module 103 in a wireless or wired manner. For example, the first operation parameter information may include voltage, temperature, and the like of the cell battery. Alternatively, the first detection module 101 may be provided integrally with the corresponding battery cell.

The second detection module 102 is disposed on the head end or the tail end of the single storage battery, and is configured to detect second operation parameter information of the storage battery pack, and send the second operation parameter information to the analysis processing module 103 in a wireless or wired manner. For example, the second operation parameter information may include a total voltage, a discharge current, a discharge time period, and the like of the secondary battery pack. Alternatively, the second detection module 102 may be provided integrally with the head-end or tail-end cell battery.

The analysis processing module 103 is configured to determine an operation state of each single battery according to at least one of the first operation parameter information and the second operation parameter information, and perform corresponding maintenance processing when the operation of the single battery is abnormal.

For example, the first operating parameter information may carry identification information of the corresponding battery cell, such as a unique identifier such as a code or a two-dimensional code, so that the analysis processing module 103 distinguishes the battery cells. The second operation parameter information may also carry identification information of the storage battery pack, such as a unique identifier such as a code or a two-dimensional code, so that the analysis processing module 103 distinguishes the storage battery pack. In addition, each single storage battery and each storage battery pack can be externally attached with identification information so as to be convenient for maintenance personnel to distinguish.

The evaluation module 103 can determine the operating state of each battery cell solely from the first operating parameter information, solely from the second operating parameter information, or both from the first operating parameter information and the second operating parameter information.

In the above embodiment, the first detection module may detect first operating parameter information of the single storage battery, the second detection module may detect second operating parameter information of the storage battery pack, and the analysis processing module may determine the operating state of each single storage battery according to at least one of the first operating parameter information and the second operating parameter information, and then perform corresponding maintenance processing when the operation of the single storage battery pack is abnormal, thereby implementing effective maintenance on the storage battery pack and avoiding a communication network fault caused by a fault of the storage battery pack.

Fig. 2 shows a schematic view of a cell provided with a first detection module. As shown in fig. 2, the first sensing module 101 may be disposed (e.g., attached) between the positive electrode 211 and the negative electrode 221 of the unit storage battery 201. The cell 201 may be provided with a safety valve 231.

A plurality of connection lines, such as a positive voltage collection line 11, a positive internal resistance activation repair function line 21, a positive balance repair function line 31, a positive power supply line 41, and a positive temperature detection line 51, may be disposed between the first detection module 101 and the positive electrode 211. Similarly, a plurality of connection lines, such as the cathode voltage collection line 12, the cathode internal resistance activation and repair function line 22, the cathode equalization repair function line 32, the cathode supply line 42 and the cathode temperature detection line 52, may be respectively disposed between the first detection module 101 and the cathode 221. For example, temperature probes (not shown in the figure) may be provided at the bottom of the positive electrode 211 and the negative electrode 221, respectively, and the positive temperature detection line 51 and the negative temperature detection line 52 may be connected to the temperature probes, respectively.

Of course, other connection lines may be disposed between the first detection module 101 and the positive electrode 211 and between the first detection module 101 and the negative electrode 221 according to actual requirements, and are not exhaustive here.

Fig. 3 shows a schematic diagram of a battery pack provided with a first detection module and a second detection module. As shown in fig. 3, the battery pack may include at least a cell 201 on the right side (i.e., the head cell) and a cell 201 on the left side (i.e., the tail cell). The positive pole 211 of the leading cell can be considered the overall positive pole of the battery pack and the negative pole 221 of the trailing cell can be considered the overall negative pole of the battery pack. The overall positive cable 61 may be connected to the positive 211 of the head-end cell battery, and the overall negative cable 62 may be connected to the negative 221 of the tail-end cell battery. A hall coil 104 for detecting the total current of the battery pack may be disposed on the total positive cable 61 or the total negative cable 62, for example, the hall coil 104 may be looped around the total positive cable 61 or the total negative cable 62, and the current of the battery pack may be detected when the battery pack is discharged.

The second detection module 102 may be disposed on the head cell battery or the tail cell battery. Fig. 3 shows a case where the second detection module 102 is provided on the end cell battery. The second detection module 102 may be connected to the positive electrode 211 of the head cell and the negative electrode 221 of the tail cell so that the total voltage of the battery pack can be detected. The second detection module 102 may also be connected to the positive pole 211 of the end cell battery so that the second detection module 102 may be powered by the end cell battery. In addition, the second detection module 102 may be connected to the hall coil 104 to obtain the total current of the battery pack.

Fig. 4 shows a schematic diagram of a network topology in which a battery pack is located according to an embodiment of the present disclosure.

As shown in fig. 4, one analysis processing module 103 may be provided for each battery pack. For example, the analysis processing module 103 may be disposed on a data collector. The analysis processing module 103 may send the first operation parameter information sent by the first detection module 101, the second operation parameter information sent by the second detection module 102, and the determined operation state of the single storage battery to the data summarization platform for summarization. For example, each branch office may have a data summarization platform for summarizing information on operating parameters of the battery packs at each office station. The data summarization platform can also send the received information to a mobile maintenance terminal or a maintenance management platform so as to display the information to maintenance personnel.

Further, the total positive cable and the total negative cable may be connected to a secondary power supply device, which is connected to a load (e.g., a communication device). The secondary power supply device is used for charging the storage battery pack when the mains supply is normal, such as floating charging or even charging. And when the commercial power fails, the storage battery pack discharges to supply power to the load. As one example, the secondary power supply apparatus may include a switching power supply, an Uninterruptible Power Supply (UPS), a direct current 240V power supply, a direct current 336V power supply, and the like.

In the following, how the analysis module 103 determines the operating state of the battery cell and how to perform the corresponding maintenance process will be described for the specific first and second operating parameter information.

As one implementation, the first operating parameter information may include a voltage of the cell battery. The analysis processing module 103 may be configured to: determining that the corresponding single storage battery has abnormal balance when the voltage of the single storage battery is greater than a first preset voltage or less than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage; and after determining that the balance abnormality occurs in the corresponding single storage battery, sending a balance repairing instruction to the first detection module 101 on the single storage battery with the abnormal balance. Here, in the case where the voltage of the cell storage battery is greater than the first preset voltage, it indicates that the cell storage battery is in an overcharged state; and under the condition that the voltage of the single storage battery is less than the second preset voltage, indicating that the single storage battery is in an undercharge state.

Accordingly, the first detection module 101 may be configured to, after receiving the equalization repairing instruction, perform the following operations when the battery pack is in a floating state: under the condition that the voltage of the single storage battery is greater than a first preset voltage, discharging the corresponding single storage battery; and under the condition that the voltage of the single storage battery is less than the second preset voltage, performing supplementary charging on the corresponding single storage battery. Therefore, when the storage battery pack is in a floating charge state, the voltage of each single storage battery can be kept balanced, and the consistency of the discharge speed of each single storage battery can be ensured during discharge, so that each single storage battery is always in an optimal operation state.

The first preset voltage and the second preset voltage may be determined according to an average voltage of all the battery cells in the battery pack. For example, the first preset voltage may be greater than the average voltage, and the second preset voltage may be less than the average voltage. When the voltage of the single storage battery is greater than the first preset voltage or less than the second preset voltage, it may be determined that the voltage of the single storage battery is different from the voltages of the other single storage batteries by a relatively large amount.

In the implementation mode, under the condition that the single storage batteries are abnormal in balance, the balance of the corresponding single storage batteries can be timely repaired, so that the normal operation of the single storage batteries is ensured, and the effective maintenance of the storage battery pack is realized.

As another implementation, the first operating parameter information may include a voltage of the battery cell, and the second operating parameter information may include a total current of the battery pack. The analysis processing module 103 may also be configured to: determining the internal resistance R of each single storage battery according to the voltage (U) of each single storage battery and the total current (I) of the storage battery pack, wherein R is U/I; determining that the internal resistance of the corresponding single storage battery is abnormal, namely exceeds the standard requirement, under the condition that the internal resistance of the single storage battery is larger than the preset internal resistance; and sending an internal resistance activation and restoration instruction to the first detection module 101 on the single storage battery with abnormal internal resistance.

Correspondingly, the first detection module 101 may be further configured to, after receiving the internal resistance activation restoration instruction, perform the following operations when the storage battery pack is in a floating state: taking direct current from the positive electrode and the negative electrode of the corresponding single storage battery, and converting the direct current into pulse alternating current; and supplying the pulse current to the anode and the cathode of the corresponding single storage battery to activate and repair the internal resistance of the corresponding single storage battery until the internal resistance of the single storage battery meets the preset standard requirement. The pulse alternating current can activate sulfide crystals and sulfuric acid precipitates generated on the electrode plates in the single storage battery due to long-term floating charge, so that the internal resistance of the single storage battery reaches the standard requirement, and the service life of the single storage battery is prolonged.

In the implementation manner, on one hand, the internal resistance is determined simply and accurately; on the other hand, when the internal resistance of the single storage battery is abnormal, the corresponding single storage battery can be subjected to online internal resistance activation repair in time, so that the normal operation of the single storage battery is ensured, and the effective maintenance of the storage battery pack is realized.

As a further implementation, the analysis processing module 103, after determining the internal resistance of each cell according to the voltage of each cell and the total current of the battery pack, may further be configured to: under the condition that the internal resistance of the single storage battery is smaller than a first threshold value, determining that the corresponding single storage battery has a short-circuit fault; determining that the corresponding single storage battery has an open-circuit fault under the condition that the internal resistance of the single storage battery is greater than a second threshold value; and alarming under the condition that the short circuit or open circuit fault of the corresponding single storage battery is determined. In practical applications, the first threshold may be set to a very small value, for example as close to 0 Ω as possible; while the second threshold may be set to a large value, e.g. close to infinity.

In addition, the analysis processing module 103 may be further configured to determine that a high-temperature fault occurs in the corresponding single storage battery when the temperature of the single storage battery exceeds a preset temperature; and alarming under the condition that the corresponding single storage battery is determined to have high-temperature fault.

For example, the analysis processing module 103 may send the alarm information carrying the identifier of the single storage battery to a display of the data collector for display. The data acquisition unit can also send the alarm information to the mobile maintenance terminal for display so as to more directly remind maintenance personnel to carry out corresponding processing. In addition, the display of the data acquisition unit can also be used for displaying other information such as the total voltage, the total current, the actual capacity and the like of the storage battery pack.

In the implementation mode, the alarm is given when the short-circuit fault, the open-circuit fault or the high-temperature fault of the corresponding single storage battery is determined, and maintenance personnel can be reminded of maintaining the corresponding single storage battery in time.

In addition, the analysis processing module 103 may also alarm in time when the second operation parameter has an abnormal parameter, so as to remind a maintenance person to perform corresponding processing.

As still another implementation, the second operating parameter information may include a total voltage, a discharge current, and a discharge time period of the secondary battery pack. In this implementation, the maintenance system may further include a control module, and the control module may be disposed in the mobile maintenance terminal or the maintenance management platform. The control module is used for sending a first control instruction to the secondary power supply equipment under the condition that commercial power is normally supplied, so that the floating charge voltage for charging the storage battery pack is adjusted to the voltage corresponding to the checking discharge capacity test or the voltage corresponding to the full capacity test, and the storage battery pack is enabled to discharge. Accordingly, the analysis processing module 103 may be configured to calculate the discharge capacity of the battery pack according to the discharge current and the discharge time of the battery pack, or according to the total voltage, the discharge current, and the discharge time of the battery pack; and instructing the control module to send a second control instruction to the secondary power supply equipment to charge the storage battery pack if the discharging termination condition is met.

As one example, the discharge end condition may include a preset total voltage, a preset cell battery temperature, a preset discharge capacity, or a preset discharge time. When any one of the discharge termination conditions is reached, the analysis processing module 103 may instruct the control module to send a second control instruction to the secondary power supply device to charge the storage battery pack, such as uniform charging or floating charging. Alternatively, the analysis processing module 103 may prompt the maintenance personnel to adjust the secondary power supply device to uniformly charge or float the storage battery pack.

When the commercial power is normally supplied, the floating charging voltage of the secondary power supply equipment for charging the storage battery pack can be remotely controlled through the application on the mobile maintenance terminal so as to detect the checking discharge capacity or the full capacity of the storage battery pack. For example, the float voltage of the secondary power supply device may be adjusted down from a normal value (e.g., 53.5V or 54V) to 47V or 46V or the like to detect the checkable discharge capacity of the secondary battery. For another example, the float voltage of the secondary power supply device may be adjusted down from a normal value to 45V or the like to detect the full capacity of the battery.

When the commercial power is cut off, the storage battery pack automatically discharges. The analysis processing module 103 may calculate the discharge capacity of the battery pack or the single battery according to the following formula: the discharge capacity is I (discharge current) × H (discharge time period), and the unit of the discharge capacity is Ampere Hour (AH). The analysis processing module 103 may also calculate the discharge capacity of the battery pack or the single battery according to the following formula: the discharge capacity is I (discharge current) × H (discharge time length) × U (total voltage of the battery pack or voltage of the battery cell), and the unit of the discharge capacity is ampere-hour-volt (AHV).

The data summarizing platform can generate a table or a curve graph formed by data such as the total voltage, the discharge current, the discharge capacity, the discharge duration, the residual discharge capacity, the residual discharge duration and the like of the storage battery pack according to various information sent by the analysis processing module 103 or the data collector where the analysis processing module is located; and a table or a graph formed by data such as discharge voltage, discharge current, temperature of the single storage battery, discharge capacity, residual discharge time and the like of each single storage battery can be generated.

In addition, the data summarizing platform can compare historical data tables or curves of the storage battery pack and the single storage batteries thereof to determine the storage battery pack with reduced performance or the single storage battery with reduced performance, and further can send reminding information, for example, the reminding information is sent to an application, a mailbox and the like of the mobile maintenance terminal, so that maintenance personnel can update or modify the storage battery pack or the single storage battery.

In addition, the data summarization platform can automatically evaluate the quality of the storage battery packs of different manufacturers for reference of purchasing departments.

Fig. 5 is a schematic flow chart diagram of a maintenance method of a battery pack according to one embodiment of the present disclosure. In this embodiment, the battery pack includes a plurality of single batteries connected in series, and the plurality of single batteries includes at least a head-end single battery and a tail-end single battery.

In step 502, a first detection module provided on each battery cell detects first operating parameter information of the respective battery cell.

In step 504, a second detection module disposed on the head end or the tail end cell detects second operating parameter information of the battery pack.

In step 506, an operating state of each cell is determined based on at least one of the first operating parameter information and the second operating parameter information.

In step 508, corresponding maintenance processing is performed in case of an abnormality in the operation of the battery cells.

In the above embodiment, the first detection module may detect first operation parameter information of the single storage battery, the second detection module may detect second operation parameter information of the storage battery pack, and the operation state of each single storage battery may be determined according to at least one of the first operation parameter information and the second operation parameter information, so that corresponding maintenance processing is performed when the operation of the single storage battery pack is abnormal, thereby implementing effective maintenance of the storage battery pack, and avoiding a communication network fault caused by a fault of the storage battery pack.

Different implementations of

steps

506 and 508 are described below based on different first and second parameter information.

In one embodiment, the first operating parameter information includes a voltage of the cell battery. Step 506 may include: and determining that the balance abnormality occurs to the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than a first preset voltage or less than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage. Step 508 may include: and sending a balance repairing instruction to the first detection module on the single storage battery with abnormal balance. Correspondingly, after receiving the balance repairing instruction, the first detection module performs the following operations under the condition that the storage battery pack is in a floating state: discharging the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than a first preset voltage; and under the condition that the voltage of the single storage battery is less than the second preset voltage, performing supplementary charging on the corresponding single storage battery.

In another embodiment, the first operating parameter information includes a voltage of the battery cell and the second operating parameter information includes a total current of the battery pack. Step 506 may include: determining the internal resistance of each single storage battery according to the voltage of each single storage battery and the total current of the storage battery pack; and determining that the internal resistance of the corresponding single storage battery is abnormal under the condition that the internal resistance of the single storage battery is greater than the preset internal resistance. Step 508 may include: and sending an internal resistance activation repairing instruction to a first detection module on the single storage battery with abnormal internal resistance. Correspondingly, after receiving the internal resistance activation restoration instruction, the first detection module performs the following operations under the condition that the storage battery pack is in a floating state: taking direct current from the positive electrode and the negative electrode of the corresponding single storage battery, and converting the direct current into pulse alternating current; and supplying the pulse current to the anode and the cathode of the corresponding single storage battery so as to activate and repair the internal resistance of the corresponding single storage battery.

In yet another implementation, the first operating parameter information includes a voltage of the battery cell and the second operating parameter information includes a total current of the battery pack. Step 506 may include: under the condition that the internal resistance of the single storage battery is smaller than a first threshold value, determining that the corresponding single storage battery has a short-circuit fault; and under the condition that the internal resistance of the single storage battery is larger than the second threshold value, determining that the corresponding single storage battery has an open-circuit fault. Step 508 may include: the corresponding maintenance processing is carried out under the condition that the operation of the single storage battery is abnormal, and the method further comprises the following steps: and alarming under the condition that the short circuit or open circuit fault of the corresponding single storage battery is determined.

In yet another implementation, the second operating parameter information includes a total voltage, a discharge current, and a discharge time period of the battery pack. The method shown in fig. 5 may further include the steps of: under the condition that commercial power is normally supplied, a first control instruction is sent to secondary power supply equipment so as to adjust the float charging voltage for charging the storage battery to the voltage corresponding to the checking discharge capacity test or the voltage corresponding to the full capacity test, and therefore the storage battery discharges; calculating the discharge capacity of the storage battery pack according to the discharge current and the discharge time of the storage battery pack, or according to the total voltage, the discharge current and the discharge time of the storage battery pack; and sending a second control instruction to the secondary power supply equipment under the condition that the discharging termination condition is met so as to resume charging the storage battery pack.

Fig. 6 is a schematic structural diagram of a maintenance system for a storage battery according to an embodiment of the present disclosure. Here, the secondary battery includes at least one unit secondary battery. For example, the battery may be a battery for an automobile or an electric vehicle.

As shown in fig. 6, the maintenance system includes a detection module 601 and an analysis processing module 602.

The detection module 601 is disposed on the single storage battery and is configured to detect operation parameter information of the single storage battery. For example, the operating parameter information may include at least one of: voltage, temperature, current, discharge duration of the single storage battery.

The analysis processing module 602 is configured to determine whether the operation of the single storage battery is abnormal according to the operation parameter information; and carrying out corresponding maintenance treatment when the operation of the single storage battery is abnormal.

For example, the analysis processing module 602 may determine whether the single battery has an abnormal balance according to the voltage of the single battery, and if so, send a balance repairing instruction to the detection module 601. The detection module 601 can perform equalization restoration on the single batteries in the manner described above when the single batteries are in a float state.

For another example, the analysis processing module 602 may determine the internal resistance of the cell based on the voltage and current of the cell. The analysis processing module 602 may determine whether the internal resistance of the single storage battery is abnormal according to the internal resistance of the single storage battery, and if the internal resistance is abnormal, send an internal resistance activation repair instruction to the detection module 601. The detection module 601 may perform internal resistance activation repair on the cell battery in the above-described manner when the cell battery is in the float state.

For another example, the analysis processing module 602 may determine whether the temperature of the single storage battery is abnormal according to the temperature of the single storage battery, and if so, may perform an alarm.

For example, the analysis processing module 602 may determine whether the single storage battery has an open circuit or short circuit abnormality according to the internal resistance of the single storage battery, and if so, may alarm.

Also for example, the analysis processing module 602 may calculate the discharge capacity of the unit batteries from the voltage, the current, and the discharge time period of the unit batteries, or from the current and the discharge time period of the unit batteries. In addition, the remaining discharge capacity of the unit storage battery may also be calculated from the discharge capacity of the unit storage battery. The remaining discharge time period of the battery cell can be calculated from the remaining discharge capacity of the battery cell.

In the above embodiment, the detection module may detect the operation parameter information of the single storage battery, the analysis processing module may determine whether the single storage battery has abnormal operation according to the operation parameter information, and perform corresponding maintenance processing when the single storage battery has abnormal operation, thereby implementing effective maintenance on the storage battery.

Fig. 7 is a schematic flow chart diagram of a maintenance method of a battery according to one embodiment of the present disclosure. The battery includes at least one cell battery.

In step 702, a detection module disposed on the battery cell detects operating parameter information of the battery cell. For example, the operating parameter information may include at least one of: voltage, temperature, current, discharge duration of the single storage battery.

In step 704, determining whether the operation of the single storage battery is abnormal according to the operation parameter information;

in step 706, corresponding maintenance processing is performed when the operation of the cell battery is abnormal.

In the embodiment, whether the single storage battery has abnormal operation or not can be determined according to the operation parameter information of the single storage battery, and corresponding maintenance processing is performed under the condition that the single storage battery has abnormal operation, so that the storage battery is effectively maintained.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other. For the method embodiment, since it basically corresponds to the system embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the system embodiment.

As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

The methods and apparatus of the present disclosure may be implemented in a number of ways. For example, the methods and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A maintenance system of a storage battery pack, wherein the storage battery pack comprises a plurality of single storage batteries which are connected in series, and the plurality of single storage batteries at least comprise a head end single storage battery and a tail end single storage battery; the system comprises:

the first detection modules are respectively arranged on each single storage battery and are used for detecting first operation parameter information of the corresponding single storage battery; after receiving the internal resistance activation repairing instruction, under the condition that the storage battery pack is in a floating state, the following operations are carried out: taking direct current from the positive electrode and the negative electrode of the corresponding single storage battery, and converting the direct current into pulse alternating current; supplying the pulse current to the positive electrode and the negative electrode of the corresponding single storage battery so as to activate and repair the internal resistance of the corresponding single storage battery;

the second detection module is arranged on the head end or the tail end single storage battery and used for detecting second operation parameter information of the storage battery pack;

the analysis processing module is used for determining the operation state of each single storage battery according to at least one of the first operation parameter information and the second operation parameter information, and performing corresponding maintenance processing when the operation of the single storage battery is abnormal;

and a positive internal resistance activation and restoration function line is arranged between each first detection module and the positive electrode of the corresponding single storage battery, and a negative internal resistance activation and restoration function line is arranged between each first detection module and the negative electrode of the corresponding single storage battery.

2. The system of claim 1, wherein the first operating parameter information includes a voltage of a cell battery;

the analysis processing module is used for:

determining that the balance abnormality occurs to the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than a first preset voltage or less than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage;

and sending a balance repairing instruction to the first detection module on the single storage battery with abnormal balance.

3. The system of claim 2, wherein the first detection module is further configured to, after receiving the equalization repair instruction, perform the following operations when the battery pack is in a float state:

discharging the corresponding single storage battery under the condition that the voltage of the single storage battery is greater than the first preset voltage;

and under the condition that the voltage of the single storage battery is less than the second preset voltage, performing supplementary charging on the corresponding single storage battery.

4. The system of claim 1, wherein the first operational parameter information includes a voltage of a cell battery, and the second operational parameter information includes a total current of the battery pack;

the analysis processing module is used for:

determining the internal resistance of each single storage battery according to the voltage of each single storage battery and the total current of the storage battery pack;

determining that the internal resistance of the corresponding single storage battery is abnormal under the condition that the internal resistance of the single storage battery is larger than the preset internal resistance;

and sending an internal resistance activation repairing instruction to a first detection module on the single storage battery with abnormal internal resistance.

5. The system of claim 4, wherein the analysis processing module is further to:

under the condition that the internal resistance of the single storage battery is smaller than a first threshold value, determining that the corresponding single storage battery has a short-circuit fault;

determining that the corresponding single storage battery has an open-circuit fault under the condition that the internal resistance of the single storage battery is greater than a second threshold value;

and alarming under the condition that the short circuit or open circuit fault of the corresponding single storage battery is determined.

6. The system of claim 1, wherein the second operational parameter information includes a total voltage, a discharge current, and a discharge duration of the battery pack; the system further comprises:

the control module is used for sending a first control instruction to secondary power supply equipment under the condition that commercial power is normally supplied, so that the floating charge voltage for charging the storage battery pack is reduced to a voltage corresponding to a checking discharge capacity test or a voltage corresponding to a full capacity test, and the storage battery pack is enabled to discharge;

the analysis processing module is also used for calculating the discharge capacity of the storage battery pack according to the discharge current and the discharge time of the storage battery pack, or according to the total voltage, the discharge current and the discharge time of the storage battery pack; and instructing the control module to send a second control instruction to the secondary power supply equipment under the condition that the discharging termination condition is met so as to charge the storage battery pack.

7. A maintenance method of a storage battery pack comprises a plurality of single storage batteries which are connected in series, wherein the plurality of single storage batteries at least comprise a head end single storage battery and a tail end single storage battery; the method comprises the following steps:

the first detection module arranged on each single storage battery detects first operation parameter information of the corresponding single storage battery;

a second detection module arranged on the head end or the tail end single storage battery detects second operation parameter information of the storage battery pack;

determining the operation state of each single storage battery according to at least one of the first operation parameter information and the second operation parameter information;

carrying out corresponding maintenance treatment under the condition that the operation of the single storage battery is abnormal;

the method further comprises the following steps:

after receiving the internal resistance activation restoration instruction, the first detection module performs the following operations under the condition that the storage battery pack is in a floating state:

taking direct current from the positive electrode and the negative electrode of the corresponding single storage battery, and converting the direct current into pulse alternating current;

the pulse current is supplied to the anode and the cathode of the corresponding single storage battery to carry out activation and restoration on the internal resistance of the corresponding single storage battery,

8. The method of claim 7, wherein the first operating parameter information includes a voltage of a cell battery;

the determining the operation state of each cell battery according to at least one of the first operation parameter information and the second operation parameter information includes:

the corresponding maintenance treatment under the condition that the operation of the single storage battery is abnormal comprises the following steps:

9. The method of claim 8, further comprising:

after receiving the balance repairing instruction, the first detection module performs the following operations under the condition that the storage battery pack is in a floating state:

10. The method of claim 7, wherein the first operational parameter information includes a voltage of a cell battery, and the second operational parameter information includes a total current of the battery pack;

the determining the operating state of each cell battery according to at least one of the first operating parameter information and the second operating parameter information further includes:

the corresponding maintenance processing is carried out under the condition that the operation of the single storage battery is abnormal, and the method further comprises the following steps:

11. The method of claim 10, wherein said determining an operating condition of each cell based on at least one of said first operating parameter information and said second operating parameter information further comprises:

12. The method of claim 7, wherein the second operating parameter information includes a total voltage, a discharge current, and a discharge time period of the battery pack;

the method further comprises the following steps:

under the condition that commercial power is normally supplied, a first control instruction is sent to secondary power supply equipment so as to adjust the float charging voltage for charging the storage battery to the voltage corresponding to the checking discharge capacity test or the voltage corresponding to the full capacity test, and therefore the storage battery is enabled to discharge;

calculating the discharge capacity of the storage battery pack according to the discharge current and the discharge time of the storage battery pack, or according to the total voltage, the discharge current and the discharge time of the storage battery pack;

and sending a second control instruction to the secondary power supply equipment to charge the storage battery pack when the discharging termination condition is met.

13. A maintenance system of a storage battery, wherein the storage battery includes at least one cell storage battery; the system comprises:

the detection module is arranged on the single storage battery and used for detecting the operation parameter information of the single storage battery; after receiving the internal resistance activation restoration instruction, under the condition that the storage battery is in a floating charge state, performing the following operations: taking direct current from the positive electrode and the negative electrode of the single storage battery, and converting the direct current into pulse alternating current; supplying the pulse current to the anode and the cathode of the single storage battery to activate and repair the internal resistance of the single storage battery;

the analysis processing module is used for determining whether the operation of the single storage battery is abnormal or not according to the operation parameter information; carrying out corresponding maintenance treatment under the condition that the operation of the single storage battery is abnormal;

wherein the operating parameter information comprises at least one of: the voltage, the temperature, the current and the discharge time of the single storage battery;

the device comprises a detection module, a single storage battery and a control module, wherein an anode internal resistance activation and restoration function line is arranged between the detection module and the anode of the single storage battery, and a cathode internal resistance activation and restoration function line is arranged between the detection module and the cathode of the single storage battery.

14. A maintenance method of a storage battery, wherein the storage battery includes at least one cell storage battery; the method comprises the following steps:

the detection module arranged on the single storage battery detects the operation parameter information of the single storage battery;

determining whether the operation of the single storage battery is abnormal or not according to the operation parameter information;

the method further comprises the following steps:

after the detection module receives the internal resistance activation restoration instruction, under the condition that the storage battery is in a floating charge state, the following operations are carried out:

taking direct current from the positive electrode and the negative electrode of the single storage battery, and converting the direct current into pulse alternating current;

supplying the pulse current to the anode and the cathode of the single storage battery to activate and repair the internal resistance of the single storage battery;