CN109921117B - Online pulse activation device and system for single storage battery - Google Patents
Online pulse activation device and system for single storage battery Download PDFInfo
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- CN109921117B CN109921117B CN201910312865.4A CN201910312865A CN109921117B CN 109921117 B CN109921117 B CN 109921117B CN 201910312865 A CN201910312865 A CN 201910312865A CN 109921117 B CN109921117 B CN 109921117B
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- 230000004913 activation Effects 0.000 title claims abstract description 81
- 238000012545 processing Methods 0.000 claims abstract description 51
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 15
- 230000001447 compensatory effect Effects 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000004073 vulcanization Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to the technical field of storage battery maintenance, in particular to an online pulse activation device and system for a single storage battery. The device comprises: a central processing unit and a charging and discharging module; the central processing unit is connected with the charging and discharging module; the charge-discharge module is respectively connected with an external power supply and the single storage battery; the central processing unit is used for acquiring the characteristic parameters of the single storage battery in real time through the charge and discharge module, entering a corresponding mode according to the characteristic parameters and a preset mode conversion mechanism, sending a control instruction corresponding to the mode of the charge and discharge module in the entered mode, and controlling the charge and discharge module to execute the operation corresponding to the control instruction. The device provided by the invention can realize the detection of each single storage battery in the storage battery pack and perform individualized management and maintenance on each single storage battery according to the detection result of each single storage battery.
Description
Technical Field
The invention relates to the technical field of storage battery maintenance, in particular to an online pulse activation device and system for a single storage battery.
Background
The direct current power supplies adopted by the electric power operation power supplies in the power plant and the transformer substation are all provided by the direct current screen, and can provide power supplies for control loads, power loads, direct current accident lighting loads and the like. A storage battery pack in the direct current screen is used as a backup power supply, so that a safe, stable and reliable backup power supply can be provided for various important secondary system loads when the mains supply is powered off, and the normal operation of a high-voltage equipment operation loop, relay protection equipment and communication equipment is ensured. By detecting the storage battery pack, potential faults are found in time and the storage battery pack is maintained, so that serious power failure accidents caused by the fact that the storage battery pack cannot normally supply power when the mains supply is powered off can be avoided.
The inventor finds that the vulcanization phenomenon of the single storage battery is the main reason of the failure of the storage battery pack in normal power supply, and the currently adopted detection and maintenance method is mainly performed on the storage battery pack, so that the detection of each single storage battery in the storage battery pack cannot be accurately realized, and the individual management and maintenance of each single storage battery can be performed according to the detection result of each single storage battery.
Disclosure of Invention
In view of the above, the present invention provides an on-line pulse activation device for single storage batteries, which is used to implement detection of each single storage battery in a storage battery pack, and perform personalized management and maintenance on each single storage battery according to a detection result of each single storage battery.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
an on-line pulse activation device for a single storage battery comprises:
a central processing unit and a charging and discharging module;
the central processing unit is connected with the charging and discharging module;
the charge-discharge module is respectively connected with an external power supply and the single storage battery;
the central processing unit is used for acquiring the characteristic parameters of the single storage battery in real time through the charging and discharging module, entering a pulse mode when the characteristic parameters meet preset pulse mode characteristic parameter standards, and sending a first control instruction corresponding to the pulse mode to the charging and discharging module in the pulse mode so as to control the charging and discharging module to continuously send current pulses to the single storage battery and carry out floating charging on the single storage battery; when the entering time length of the pulse mode reaches a preset time threshold, entering a balanced charge-discharge mode, and sending a second control instruction corresponding to the balanced charge-discharge mode to the charge-discharge module in the balanced charge-discharge mode to control the charge-discharge module to discharge and charge the single storage battery until the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value; when the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value, judging whether the change rule of the characteristic parameters of the single storage battery acquired in the balanced charge-discharge mode accords with the preset change rule of the characteristic parameters of the vulcanized battery; when not, returning to the pulse mode; when the current state of the single storage battery is consistent with the current state of the single storage battery, entering an activation mode, and sending a third control instruction corresponding to the activation mode to the charge and discharge module in the activation mode so as to control the charge and discharge module to perform compensatory discharge and compensatory charge on the single storage battery; judging whether the characteristic parameters of the single storage battery obtained at the end time of the activation mode meet the preset abandoned battery characteristic parameter standard or not at the end time of the activation mode; when not satisfied, returning to the pulse mode; when satisfied, sending a request for battery replacement information.
The above apparatus, optionally, the central processing unit is further configured to:
and detecting whether the single storage battery online pulse activation device fails or not, and sending failure information when detecting that the single storage battery online pulse activation device fails.
The above device, optionally, the charge-discharge module includes:
the device comprises a positive switch K1, a negative switch K2, a current-limiting resistor R1, a resistor R2, a resistor R3, a discharge switch K3, a charge switch K4 and a voltage reduction subunit;
the first end of the positive switch K1 is connected with the positive electrode of the single storage battery, the second end of the positive switch K1 is connected with the second end of the central processing unit, and the third end of the positive switch K1 is connected to an external power supply through the current-limiting resistor R1, the charging switch K4 and the voltage-reducing subunit in sequence;
the second end of the charging switch K4 is connected with the first end of the central processing unit; the first end of the discharge switch K3 is connected with the first end of the charge switch K4, the second end is connected with the fourth end of the central processing unit, and the third end is grounded;
one end of the resistor R2 is connected with the third end of the positive switch K1, the other end of the resistor R2 is respectively connected with the third end of the central processing unit and one end of the resistor R3, and the other end of the resistor R3 is grounded;
the first end of the negative switch K2 is connected with the negative pole of the single storage battery, the second end is connected with the fifth end of the central processing unit, and the third end is grounded.
The above apparatus, optionally, the voltage dropping subunit includes:
an IN4007 diode and an IN4819 diode;
one end of the IN4007 diode is connected with the third end of the charging switch K4, and the other end of the IN4007 diode is connected to an external power supply through the IN4819 diode.
The above apparatus, optionally, further comprises:
a communication module;
the communication module is respectively connected with the upper computer and the central processing unit and used for uploading the information of requesting to replace the battery to the upper computer when receiving the information of requesting to replace the battery sent by the central processing unit.
The above apparatus, optionally, the communication module includes:
an optical coupler and an RS485 chip;
the optical coupler is respectively connected with the central processing unit and the RS485 chip;
and the RS485 chip is connected with an upper computer.
An on-line pulse activation system for a single storage battery, comprising:
the upper computer and a plurality of single storage battery online pulse activation devices are arranged on the upper computer;
and each single storage battery online pulse activation device is connected with the upper computer and respectively connected to different single storage batteries.
Compared with the prior art, the invention has the following advantages:
the invention provides an on-line pulse activation device for a single storage battery, which comprises: a central processing unit and a charging and discharging module; the central processing unit is connected with the charging and discharging module; the charge-discharge module is respectively connected with an external power supply and the single storage battery;
the central processing unit is used for acquiring the characteristic parameters of the single storage battery in real time through the charging and discharging module, entering a pulse mode when the characteristic parameters meet preset pulse mode characteristic parameter standards, and sending a first control instruction corresponding to the pulse mode to the charging and discharging module in the pulse mode so as to control the charging and discharging module to continuously send current pulses to the single storage battery and carry out floating charging on the single storage battery; when the entering time length of the pulse mode reaches a preset time threshold, entering a balanced charge-discharge mode, and sending a second control instruction corresponding to the balanced charge-discharge mode to the charge-discharge module in the balanced charge-discharge mode to control the charge-discharge module to discharge and charge the single storage battery until the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value; when the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value, judging whether the change rule of the characteristic parameters of the single storage battery acquired in the balanced charge-discharge mode accords with the preset change rule of the characteristic parameters of the vulcanized battery; when not, returning to the pulse mode; when the current state of the single storage battery is consistent with the current state of the single storage battery, entering an activation mode, and sending a third control instruction corresponding to the activation mode to the charge and discharge module in the activation mode so as to control the charge and discharge module to perform compensatory discharge and compensatory charge on the single storage battery; judging whether the characteristic parameters of the single storage battery obtained at the end time of the activation mode meet the preset abandoned battery characteristic parameter standard or not at the end time of the activation mode; when not satisfied, returning to the pulse mode; when satisfied, sending a request for battery replacement information.
By applying the device provided by the invention, the characteristic parameters of the single storage battery are acquired in real time, when the characteristic parameters meet the preset pulse mode characteristic parameter standard, the pulse mode is entered, and current pulses are continuously sent to the single storage battery in the pulse mode to float and charge the single storage battery; when the pulse mode is started and a preset time threshold is reached, a balanced charge-discharge mode is started, and a charge-discharge module is controlled to discharge and charge the single storage battery in a circulating mode until the voltage value of the single storage battery reaches a preset average voltage value; when the voltage value of the single storage battery meets a preset average voltage value, judging whether the change rule of the characteristic parameter acquired in the balanced charge-discharge mode meets a preset change rule of the vulcanized battery characteristic parameter; when the conditions are met, entering an activation mode, and controlling the charge and discharge module to circularly carry out compensatory discharge and compensatory charge on the single storage battery; judging whether the characteristic parameters obtained at the end time of the activation mode meet the preset abandoned battery characteristic parameter standard or not at the end time of the activation mode, namely judging whether the vulcanized single storage battery can still be used after being activated; when not satisfied, returning to the pulse mode; when satisfied, sending a request for battery replacement information. The detection of each single storage battery in the storage battery pack is realized, and the individual management and maintenance are carried out on each single storage battery according to the detection result of each single storage battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an on-line pulse activation device for a single storage battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an on-line pulse activation device for a single storage battery according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an on-line pulse activation device for a single storage battery according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating an operation of an on-line pulse activation apparatus for a single battery according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an on-line pulse activation system for a single storage battery according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiment of the invention provides an on-line pulse activation device for a single storage battery, which is shown in fig. 1 in a schematic structural diagram and specifically comprises the following components:
a central processing unit 101 and a charging and discharging module 102;
the central processing unit 101 is connected with the charging and discharging module 102;
the charge-discharge module 102 is respectively connected with an external power supply and a single storage battery;
the central processing unit 101 is configured to obtain a characteristic parameter of the single storage battery in real time through the charge and discharge module 102, enter a pulse mode when the characteristic parameter meets a preset pulse mode characteristic parameter standard, and send a first control instruction corresponding to the pulse mode to the charge and discharge module 102 in the pulse mode to control the charge and discharge module 102 to continuously send a current pulse to the single storage battery, so as to perform floating charge on the single storage battery; when the entering duration of the pulse mode reaches a preset time threshold, entering a balanced charge-discharge mode, and sending a second control instruction corresponding to the balanced charge-discharge mode to the charge-discharge module 102 in the balanced charge-discharge mode to control the charge-discharge module to discharge and charge the single storage battery until the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value; when the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value, judging whether the change rule of the characteristic parameters of the single storage battery acquired in the balanced charge-discharge mode accords with the preset change rule of the characteristic parameters of the vulcanized battery; when not, returning to the pulse mode; when the current state meets the preset condition, entering an activation mode, and sending a third control instruction corresponding to the activation mode to the charge-discharge module 102 in the activation mode to control the charge-discharge module 102 to perform compensatory discharge and compensatory charge on the single storage battery; judging whether the characteristic parameters of the single storage battery obtained at the end time of the activation mode meet the preset abandoned battery characteristic parameter standard or not at the end time of the activation mode; when not satisfied, returning to the pulse mode; when satisfied, sending a request for battery replacement information.
In the device provided by the embodiment of the invention, the central processing unit can be a CPU, a singlechip and an integrated control circuit.
The device provided by the embodiment of the invention comprises a pulse mode, a balanced charge-discharge mode and an activation mode, wherein the central processing unit can acquire the characteristic parameters of the single storage battery through the charge-discharge module and control the charge-discharge module to perform corresponding operation on the single storage battery according to the characteristic parameters of the single storage battery when entering the corresponding mode, and the acquired characteristic parameters can comprise the voltage of the single storage battery and the battery capacity of the single storage battery.
By applying the on-line pulse activation device for the single storage battery provided by the embodiment of the invention, the characteristic parameters of the single storage battery are obtained in real time; when the characteristic parameters of the single storage battery accord with preset pulse mode characteristics, namely the single storage battery can be normally used and the battery capacity reaches a certain capacity threshold value, entering a pulse mode, continuously sending current pulses to float and charge the single storage battery in the pulse mode, and supplementing the battery capacity consumed by self-discharge of the single storage battery; for the monomer storage batteries which are not vulcanized, the continuous current pulse can play a role of vulcanization prevention, the consistency of internal resistance and voltage of each monomer storage battery is improved, the on-grid running time of the monomer storage batteries is prolonged, and the probability of quality problems of the monomer storage batteries is reduced; for the single storage battery which is vulcanized, the continuous current pulse can play a role of gradually removing sulfur, and the battery capacity of the vulcanized battery is recovered to a certain extent, so that the vulcanized battery can be continuously used;
and when the market entering the pulse mode reaches a preset time threshold, entering the balanced charge-discharge mode, and discharging and charging the single storage battery in the balanced charge-discharge mode until the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value. The single storage battery is discharged and charged regularly, so that the single storage battery is prevented from being in an inoperative state for a long time and being out of order;
discharging and charging the single storage battery in a balanced charge-discharge mode until the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value, and judging whether the change rule of the characteristic parameter of the single storage battery acquired in the balanced charge-discharge mode accords with the preset change rule of the characteristic parameter of the vulcanized battery; if the situation is met, the single storage battery has a certain vulcanization phenomenon and influences the normal use of the single storage battery, the single storage battery enters an activation mode, and the single storage battery is subjected to compensatory discharge and compensatory charge in the activation mode to be activated; during the balanced charge-discharge mode, if the voltage and the battery capacity of the single storage battery are sharply reduced during discharge, and the voltage and the battery capacity are rapidly increased during charge, the single storage battery is vulcanized to a certain extent; the specific change rule of the characteristic parameters of the vulcanized battery can be flexibly set according to different models of the single storage batteries;
the vulcanization of the single storage battery has certain irreversibility, and when the activation of the single storage battery is finished, whether the characteristic parameters of the single storage battery obtained at the end moment of the activation mode meet the preset abandoned battery characteristic parameter standard is further judged; when the voltage does not meet the requirement, the single storage battery can still be used after being activated, and the pulse mode is returned; when the single storage battery is in a satisfied state, the vulcanization degree of the single storage battery is serious, the normal use requirement is still not met after the single storage battery is activated, the battery replacement request information is sent, and a worker is prompted to replace the single storage battery which cannot be used continuously.
Based on the on-line pulse activation device for the single storage battery provided in the foregoing embodiment, the on-line pulse activation device for the single storage battery provided in the embodiment of the present invention, the central processing unit may further be configured to:
and detecting whether the single storage battery online pulse activation device fails or not, and sending failure information when detecting that the single storage battery online pulse activation device fails.
Based on the single storage battery online pulse activation device provided in the foregoing embodiment, the single storage battery online pulse activation device provided in the embodiment of the present invention illustrates a specific structure of a charge-discharge module, and a schematic structural diagram of the charge-discharge module is shown in fig. 2, and specifically may include:
the device comprises a positive switch K1, a negative switch K2, a current-limiting resistor R1, a resistor R2, a resistor R3, a discharge switch K3, a charge switch K4 and a voltage reduction subunit;
the first end of the positive switch K1 is connected with the positive electrode of the single storage battery, the second end of the positive switch K1 is connected with the second end of the central processing unit, and the third end of the positive switch K1 is connected to an external power supply through the current-limiting resistor R1, the charging switch K4 and the voltage-reducing subunit in sequence;
the second end of the charging switch K4 is connected with the first end of the central processing unit; the first end of the discharge switch K3 is connected with the first end of the charge switch K4, the second end is connected with the fourth end of the central processing unit, and the third end is grounded;
one end of the resistor R2 is connected with the third end of the positive switch K1, the other end of the resistor R2 is respectively connected with the third end of the central processing unit and one end of the resistor R3, and the other end of the resistor R3 is grounded;
the first end of the negative switch K2 is connected with the negative pole of the single storage battery, the second end is connected with the fifth end of the central processing unit, and the third end is grounded.
According to the device provided by the embodiment of the invention, the positive switch K1, the negative switch K2, the discharge switch K3 and the charge switch K4 are all solid-state non-contact relays, so that arc discharge and open fire are avoided, and the service life is long; the discharging switch K3 and the charging switch K4 are optical coupling relays.
Based on the on-line pulse activation device for the single storage battery provided by the foregoing embodiment, the embodiment of the present invention illustrates a specific structure of a voltage reduction subunit, where the voltage reduction subunit may specifically include:
an IN4007 diode and an IN4819 diode;
one end of the IN4007 diode is connected with the third end of the charging switch K4, and the other end of the IN4007 diode is connected to an external power supply through the IN4819 diode.
Based on the on-line pulse activation device for the single storage battery provided by the foregoing embodiment, the on-line pulse activation device for the single storage battery provided by the embodiment of the present invention may further include:
a communication module;
the communication module is respectively connected with the upper computer and the central processing unit and used for uploading the information of requesting to replace the battery to the upper computer when receiving the information of requesting to replace the battery sent by the central processing unit.
Based on the on-line pulse activation device for the single storage battery provided by the foregoing embodiment, the on-line pulse activation device for the single storage battery provided by the embodiment of the present invention illustrates a specific structure of a communication module, and the communication module may specifically include:
an optical coupler and an RS485 chip;
the optical coupler is respectively connected with the central processing unit and the RS485 chip;
and the RS485 chip is connected with an upper computer.
According to the device provided by the embodiment of the invention, the optical coupler can realize electric-optical-electric conversion, and the physical isolation of the communication module and other circuits is realized, so that the communication module has good electric insulation capacity and anti-interference capacity.
Fig. 3 is another schematic structural diagram of an on-line pulse activation device for a single storage battery according to an embodiment of the present invention, and fig. 4 is a flowchart of an operation of the on-line pulse activation device for a single storage battery according to an embodiment of the present invention; the following describes the complete operation process of the on-line pulse activation device for single batteries according to the embodiment of the present invention with reference to fig. 3 and 4.
The on-line pulse activation device for the single storage battery provided by the embodiment of the invention comprises:
a central processing unit 301, a charging and discharging module 302, and a communication module 303;
the charge and discharge module 302 comprises a positive switch K1, a negative switch K2, a current limiting resistor R1, a resistor R2, a resistor R3, a discharge switch K3, a charge switch K4 and a voltage reduction subunit;
the first end of the positive switch K1 is connected with the positive electrode of the single storage battery, the second end of the positive switch K1 is connected with the second end of the central processing unit, and the third end of the positive switch K1 is connected to an external power supply through the current-limiting resistor R1, the charging switch K4 and the voltage-reducing subunit in sequence;
the second end of the charging switch K4 is connected with the first end of the central processing unit; the first end of the discharge switch K3 is connected with the first end of the charge switch K4, the second end is connected with the fourth end of the central processing unit, and the third end is grounded;
one end of the resistor R2 is connected with the third end of the positive switch K1, the other end of the resistor R2 is respectively connected with the third end of the central processing unit and one end of the resistor R3, and the other end of the resistor R3 is grounded;
the first end of the negative switch K2 is connected with the negative electrode of the single storage battery, the second end is connected with the fifth end of the central processing unit, and the third end is grounded;
the communication module 303 comprises an optical coupler and an RS485 chip;
the optical coupler is respectively connected with the central processing unit and the RS485 chip;
and the RS485 chip is connected with an upper computer.
The on-line pulse activation device for the single storage battery provided by the embodiment of the invention has the following complete working process:
acquiring characteristic parameters of the single storage battery in real time;
when the characteristic parameters of the single storage battery meet the preset pulse mode characteristic parameter standard, entering a pulse mode, continuously sending current pulses to the single storage battery in the pulse mode, and carrying out floating charging on the current pulses; when the single storage battery is in a pulse mode, the positive switch K1, the negative switch K2 and the charging switch K4 are all closed, the discharging switch K3 is opened, the voltage generated by current pulses in real time is 2.35V-2.40V, and the current is generally 0.05 times-0.2 times of the rated current of the single storage battery;
when the entering duration of the pulse mode reaches a preset time threshold, entering a balanced charge-discharge mode, and discharging and charging the single storage battery in the balanced charge-discharge mode until the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value; when the single storage battery is in the balanced charging and discharging mode, the voltage value of the single storage battery is compared with a preset average voltage value, if the voltage value is lower than the average voltage value, the single storage battery is charged preferentially, the positive switch K1, the negative switch K2 and the charging switch K4 are closed during charging, and the discharging switch K3 is opened; when the voltage is higher than the average voltage value after charging, discharging is carried out on the voltage, and when discharging is carried out, the positive switch K1, the negative switch K2 and the discharge switch K3 are closed, the charge switch K4 is opened, large current is used for discharging, and the discharge current value is generally 0-30A; circulating the charging and discharging processes until the battery capacity of the single storage battery is full and the voltage value reaches the preset average voltage; in the cyclic charge-discharge process, the charge and the discharge are independent and cannot be carried out simultaneously;
when the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value, judging whether the change rule of the characteristic parameters of the single storage battery acquired in the balanced charge-discharge mode accords with the preset change rule of the characteristic parameters of the vulcanized battery; when the pulse mode is not consistent, returning to the pulse mode; entering an activation mode when the current state of the single storage battery is met, and performing compensatory discharge and compensatory charge on the single storage battery in the activation mode to activate the single storage battery;
at the end time of the activation mode, judging whether the characteristic parameters of the single storage battery obtained at the end time of the activation mode meet the preset abandoned battery characteristic parameter standard, namely judging whether the single storage battery can be continuously used after being activated; if the voltage does not meet the preset requirement, the single storage battery can be continuously used after being activated, and the pulse mode is returned; when the single storage battery is used, the vulcanization degree of the single storage battery is serious, the normal use requirement can not be met after the single storage battery is activated, the request for replacing the battery information is sent, the request for replacing the battery information is uploaded to the upper computer through the communication module, and the working personnel is prompted to replace the single storage battery which can not be used continuously.
When the single storage battery online pulse activation device works, whether the single storage battery online pulse activation device breaks down or not can be detected in real time, and when the single storage battery online pulse activation device breaks down, fault information is sent to prompt a worker to maintain the single storage battery online pulse activation device which breaks down.
The embodiment of the present invention further provides an on-line pulse activation system for a single storage battery, a schematic structural diagram of which is shown in fig. 5, and the on-line pulse activation system specifically includes:
an upper computer 501 and a plurality of single storage battery online pulse activation devices 502 provided by the previous embodiments;
each single storage battery online pulse activation device is connected with the upper computer 501 and is respectively connected to different single storage batteries.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An on-line pulse activation device for a single storage battery is characterized by comprising:
a central processing unit and a charging and discharging module;
the central processing unit is connected with the charging and discharging module;
the charge-discharge module is respectively connected with an external power supply and the single storage battery;
the charge-discharge module comprises: the device comprises a positive switch K1, a negative switch K2, a current-limiting resistor R1, a resistor R2, a resistor R3, a discharge switch K3, a charge switch K4 and a voltage reduction subunit;
the first end of the positive switch K1 is connected with the positive electrode of the single storage battery, the second end of the positive switch K1 is connected with the second end of the central processing unit, and the third end of the positive switch K1 is connected to an external power supply through the current-limiting resistor R1, the charging switch K4 and the voltage-reducing subunit in sequence;
the second end of the charging switch K4 is connected with the first end of the central processing unit; the first end of the discharge switch K3 is connected with the first end of the charge switch K4, the second end is connected with the fourth end of the central processing unit, and the third end is grounded;
one end of the resistor R2 is connected with the third end of the positive switch K1, the other end of the resistor R2 is respectively connected with the third end of the central processing unit and one end of the resistor R3, and the other end of the resistor R3 is grounded;
the first end of the negative switch K2 is connected with the negative electrode of the single storage battery, the second end is connected with the fifth end of the central processing unit, and the third end is grounded;
the central processing unit is used for acquiring the characteristic parameters of the single storage battery in real time through the charging and discharging module, entering a pulse mode when the characteristic parameters meet preset pulse mode characteristic parameter standards, and sending a first control instruction corresponding to the pulse mode to the charging and discharging module in the pulse mode so as to control the charging and discharging module to continuously send current pulses to the single storage battery and carry out floating charging on the single storage battery; when the entering time length of the pulse mode reaches a preset time threshold, entering a balanced charge-discharge mode, and sending a second control instruction corresponding to the balanced charge-discharge mode to the charge-discharge module in the balanced charge-discharge mode to control the charge-discharge module to discharge and charge the single storage battery until the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value; when the battery capacity of the single storage battery is full and the voltage value reaches a preset average voltage value, judging whether the change rule of the characteristic parameters of the single storage battery acquired in the balanced charge-discharge mode accords with the preset change rule of the characteristic parameters of the vulcanized battery; when not, returning to the pulse mode; when the current state of the single storage battery is consistent with the current state of the single storage battery, entering an activation mode, and sending a third control instruction corresponding to the activation mode to the charge and discharge module in the activation mode so as to control the charge and discharge module to perform compensatory discharge and compensatory charge on the single storage battery; judging whether the characteristic parameters of the single storage battery obtained at the end time of the activation mode meet the preset abandoned battery characteristic parameter standard or not at the end time of the activation mode; when not satisfied, returning to the pulse mode; when satisfied, sending a request for battery replacement information.
2. The apparatus of claim 1, wherein the central processing unit is further configured to:
and detecting whether the single storage battery online pulse activation device fails or not, and sending failure information when detecting that the single storage battery online pulse activation device fails.
3. The apparatus of claim 1, wherein the voltage reduction subunit comprises:
an IN4007 diode and an IN4819 diode;
one end of the IN4007 diode is connected with the third end of the charging switch K4, and the other end of the IN4007 diode is connected to an external power supply through the IN4819 diode.
4. The apparatus of any one of claims 1 to 3, further comprising:
a communication module;
the communication module is respectively connected with the upper computer and the central processing unit and used for uploading the information of requesting to replace the battery to the upper computer when receiving the information of requesting to replace the battery sent by the central processing unit.
5. The apparatus of claim 4, wherein the communication module comprises:
an optical coupler and an RS485 chip;
the optical coupler is respectively connected with the central processing unit and the RS485 chip;
and the RS485 chip is connected with an upper computer.
6. An on-line pulse activation system for a single storage battery, comprising:
the upper computer and a plurality of single storage battery on-line pulse activation devices according to claim 5;
and each single storage battery online pulse activation device is connected with the upper computer and respectively connected to different single storage batteries.
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