CN112186844A - Storage battery test maintenance device, control method and power distribution station of data center - Google Patents

Storage battery test maintenance device, control method and power distribution station of data center Download PDF

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Publication number
CN112186844A
CN112186844A CN202011008320.3A CN202011008320A CN112186844A CN 112186844 A CN112186844 A CN 112186844A CN 202011008320 A CN202011008320 A CN 202011008320A CN 112186844 A CN112186844 A CN 112186844A
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China
Prior art keywords
switch
voltage
storage battery
battery
condition
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CN202011008320.3A
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Chinese (zh)
Inventor
冯宇
马斌斌
顾鹏
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Beijing Baidu Netcom Science and Technology Co Ltd
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Beijing Baidu Netcom Science and Technology Co Ltd
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Priority to CN202011008320.3A priority Critical patent/CN112186844A/en
Publication of CN112186844A publication Critical patent/CN112186844A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G01R31/386—Arrangements for measuring battery or accumulator variables using test-loads
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4242—Regeneration of electrolyte or reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285—Testing apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The application discloses a storage battery testing and maintaining device, a control method and a power distribution station of a data center, relates to the technical field of batteries, and can be applied to the data center in the field of cloud computing or cloud. The device includes: the charging loop is used for connecting the storage battery and the direct current charging equipment and is provided with a first switch; the discharging loop is used for connecting the storage battery and a discharging load and is provided with a second switch; the direct current voltage regulating module is used for regulating the output voltage of the direct current charging equipment; and the control module is in electrical communication with the first switch, the second switch and the direct-current voltage regulating module, and is used for controlling the first switch to be closed and the second switch to be opened within a first preset time period and controlling the direct-current voltage regulating module to regulate the direct-current charging equipment to the uniform charging voltage under the condition of reaching a first time condition. The technical scheme of this application embodiment can all charge and discharge to the battery regularly, has advantages such as the human cost is low, maintenance efficiency is high and the security is strong to guarantee the power supply reliability of battery.

Description

Storage battery test maintenance device, control method and power distribution station of data center
Technical Field
The application relates to the technical field of batteries, in particular to a storage battery testing and maintaining device, a control method and a power distribution station of a data center.
Background
Data center distribution stations typically employ a dc power panel to provide dc power, which is typically configured with a battery as a backup power source. In the prior art, a storage battery is usually subjected to a simulated discharge test in a manual mode, before the test, operation and maintenance personnel are required to carry out dummy load carrying and cable connection, and after the test is finished, the cables are required to be manually dismantled, and the dummy load is carried to a specified area. Therefore, the defects of high labor cost and low testing efficiency exist.
Disclosure of Invention
The application provides a storage battery testing and maintaining device, a control method and a power distribution station of a data center.
In a first aspect, an embodiment of the present application provides a storage battery test maintenance apparatus, including:
the charging loop is used for connecting the storage battery and the direct current charging equipment and is provided with a first switch;
the discharging loop is used for connecting the storage battery and a discharging load and is provided with a second switch;
the direct current voltage regulating module is used for regulating the output voltage of the direct current charging equipment;
the control module is in electrical communication with the first switch, the second switch and the direct-current voltage regulating module;
the control module is used for controlling the first switch to be switched on and the second switch to be switched off within a first preset time period under the condition that a first time condition is reached, and controlling the direct-current voltage regulating module to regulate the output voltage of the direct-current charging equipment from floating charging voltage to uniform charging voltage.
In a second aspect, an embodiment of the present application provides a control method, which is applied to a storage battery testing and maintaining device, where the storage battery testing and maintaining device includes: the charging loop is used for connecting the storage battery and the direct current charging equipment and is provided with a first switch; the discharging loop is used for connecting the storage battery and a discharging load and is provided with a second switch; the direct current voltage regulating module is used for regulating the output voltage of the direct current charging equipment;
the method comprises the following steps:
and under the condition that the first time condition is reached, the first switch is controlled to be closed and the second switch is controlled to be opened within a first preset time period, and the direct-current voltage regulating module is controlled to regulate the output voltage of the direct-current charging equipment to the uniform charging voltage.
In a third aspect, an embodiment of the present application provides a controller, including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to cause the at least one processor to perform a method provided by any of the embodiments of the present application.
In a fourth aspect, the present application provides a non-transitory computer-readable storage medium storing computer instructions, where the computer instructions are configured to cause a computer to perform a method provided in any one of the embodiments of the present application.
In a fifth aspect, an embodiment of the present application provides a power distribution station of a data center, including the storage battery test maintenance apparatus provided in any embodiment of the present application.
According to the technical scheme of this application, the technical problem that the human cost of artifical maintenance battery among the prior art is high, maintenance efficiency is low has been solved. Output voltage of the direct-current charging equipment is adjusted to the equalizing charge voltage through the control module, the storage battery can be regularly equalized and charged, the storage battery can be discharged through the control module for controlling the first switch and the second switch, and the control module has the advantages of being low in labor cost, high in maintenance efficiency, high in safety and the like, timeliness and stability are high, and power supply reliability of the data center direct-current power supply screen standby power supply is guaranteed.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present application, nor do they limit the scope of the present application. Other features of the present application will become apparent from the following description.
Drawings
The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:
FIG. 1 is a schematic diagram of a battery test maintenance apparatus according to an embodiment of the present application;
FIG. 2 is a schematic wiring diagram of a control module of the battery test maintenance apparatus according to an embodiment of the present application;
FIG. 3 is a flow chart of a control method according to an embodiment of the present application;
FIG. 4 is a flow chart of a control method according to an embodiment of the present application;
FIG. 5 is a flow chart of a control method according to an embodiment of the present application;
fig. 6 is a block diagram of a controller according to an embodiment of the present application.
Detailed Description
The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
A battery test maintenance apparatus 1 according to an embodiment of the present application is described below with reference to fig. 1 and 2. The storage battery testing and maintaining device 1 according to the embodiment of the application can be used for testing and maintaining the storage battery 2, wherein the storage battery 2 can be a lead-acid storage battery 2. More specifically, the storage battery 2 may be a backup dc power supply applied to a dc power supply panel of a power distribution station of a data center, wherein the data center may be a data center applied to cloud computing or cloud field.
As shown in fig. 1, the storage battery test maintenance apparatus 1 according to the embodiment of the present application includes a charging circuit 101, a discharging circuit 103, a dc voltage regulation module 105, and a control module 106.
Specifically, the charging circuit 101 is used to connect the battery 2 and the dc charging device 3, and the charging circuit 101 is provided with a first switch 102. The discharging circuit 103 is used for connecting the storage battery 2 and a discharging load, and the discharging circuit 103 is provided with a second switch 104. The dc voltage regulation module 105 is used to regulate the output voltage of the dc charging device 3. The control module 106 is in electrical communication with the first switch 102, the second switch 104, and the dc voltage regulation module 105. The control module 106 is configured to control the first switch 102 to be turned on and the second switch 104 to be turned off within a first preset time period when the first time condition is reached, and control the dc voltage regulating module 105 to regulate the output voltage of the dc charging apparatus 3 from the float voltage to the uniform charge voltage.
It is understood that the first switch 102 is used to switch the charging circuit 101 and the second switch 104 is used to switch the discharging circuit 103. The control module 106 controls the first switch 102 to be closed and the second switch 104 to be opened, so that the charging circuit 101 is connected and the discharging circuit 103 is disconnected, the direct current charging device 3 charges the storage battery 2, and the storage battery 2 is in the charging mode. The control module 106 controls the first switch 102 to be opened and the second switch 104 to be closed, so that the charging circuit 101 is opened and the discharging circuit 103 is closed, so that the two poles of the storage battery 2 are connected with the discharging load, and the discharging load is used for bearing the discharging current of the storage battery 2, so that the storage battery 2 is in the discharging mode.
Illustratively, the dc charging device 3 may be a dc bus, and two dc buses of the dc bus are respectively connected to the positive and negative poles of the storage battery 2 through the charging circuit 101. The dc voltage regulating module 105 is electrically connected to the dc bus to regulate an output voltage of the dc bus. In the standby state of the battery 2, the first switch 102 is closed and the second switch 104 is opened, and the dc voltage regulation module 105 regulates the output voltage of the dc charging device 3 to the float voltage, so that the battery 2 is in the float mode in the standby state. In case the first time condition is reached, the control module 106 controls the dc voltage regulating module 105 to regulate the output voltage of the dc charging device 3 to the equalizing voltage, so that the battery 2 is in the equalizing mode. Wherein, the even charging voltage is greater than the float charging voltage, and the specific numerical value of even charging voltage and float charging voltage can be set according to the festival number of battery 2. For example, the float voltage of the single battery 2 may be 2.23V, and the average charge voltage of the single battery 2 may be 2.35V.
Illustratively, the control module 106 has an operation interface, and the user can manually set the first time condition and the specific value of the first preset time duration through the operation interface. The first time condition may be set specifically according to actual conditions, and may be, for example, 90 days or 180 days, that is, the storage battery 2 is charged (i.e., equalized) once every 90 days or 180 days. The first preset time period may also be specifically set according to actual conditions, as long as the requirement that the storage battery 2 can be charged to a full state is met.
Further, in the equalizing charge mode, when the first preset time period ends, the control module 106 controls the first switch 102 to maintain the closed state and the second switch 104 to maintain the open state, and controls the dc voltage regulating module 105 to regulate the output voltage of the dc charging device 3 from the equalizing charge voltage to the float charge voltage, so as to end the equalizing charge mode, and switch the working mode of the storage battery 2 to the float charge mode.
Since the battery 2 has a self-discharge loss, the battery 2 needs to be continuously charged at a float voltage for a long time in the standby mode in order to balance the self-discharge loss of the battery 2. However, the battery 2 may cause the electrode plate to be passivated in the long-term float charging mode, thereby increasing the internal resistance and decreasing the capacity of the battery 2, and affecting the operation stability of the battery 2. Therefore, it is necessary to regularly charge the storage battery 2 so as to eliminate the voltage deviation between the respective cells of the storage battery 2 and to activate the electrode plates of the storage battery 2.
Compare in data center direct current power supply screen among the prior art and need the manual work all to fill reserve direct current power supply, need to carry out dummy load transport, cable connection promptly before the test to still need demolish the cable after the test, and with dummy load transition to appointed area, consume a large amount of time and manpower, efficiency is extremely low. The storage battery testing and maintaining device 1 of the embodiment of the application, through setting up control module 106 and direct current voltage regulating module 105, and under the condition that control module 106 triggers at the first time condition, control direct current voltage regulating module 105 adjusts the output voltage of direct current charging equipment 3 to the voltage that evenly charges, thereby regularly carry out automatic even charging to storage battery 2, need not operations such as artifical transport dummy load and wiring, can eliminate the potential safety hazard that exists among the artifical wiring process, it is low to have the human cost, advantages such as maintenance efficiency height and security are strong, and can eliminate the delay maintenance that the human factor leads to, thereby promote the timeliness and the stability of periodic maintenance, the power supply reliability of data center direct current power supply screen stand-by power supply has been guaranteed.
Furthermore, the control module 106 controls the first switch 102 to be opened and the second switch 104 to be closed, so that the storage battery 2 can enter a discharging mode, and therefore, the activation effect on the storage battery 2 can be further improved by regularly charging and discharging the storage battery 2, and the probability of failure of the storage battery 2 due to long-term float charging is further reduced.
In one embodiment, the control module 106 is configured to control the first switch 102 to be open and the second switch 104 to be closed for a second preset time period when the second time condition is reached, so as to place the battery 2 in the discharging mode.
For example, the user may manually set the second time condition and the second preset time period through the operation interface of the control module 106. The second time condition may be specifically set according to actual conditions, and may be staggered with the first time condition. For example, the second time condition may be 90 days or 180 days, and the second time condition may be separated from the first time condition by 45 days or 90 days. The second preset time period may also be specifically set according to actual conditions, as long as it is satisfied that the battery 2 can be discharged to the cut-off voltage within the second preset time period.
By controlling the first switch 102 to be opened and the second switch 104 to be closed under the second time condition by the control module 106, the storage battery 2 can be switched from the floating charge mode to the discharge mode, so that the storage battery 2 is automatically controlled to be periodically discharged. Therefore, through periodic uniform charging and discharging tests, the effect of activating the polar plate of the storage battery 2 can be achieved, single batteries with poor performance can be found and replaced and maintained in time, and therefore the service life of the storage battery 2 is prolonged, and the power supply reliability is improved.
It is understood that, in the discharging mode, when the second preset time period is over, the control module 106 controls the first switch 102 to close and the second switch 104 to open, so that the charging circuit 101 is closed and the discharging circuit 103 is opened, thereby switching the storage battery 2 from the discharging mode to the floating charging mode.
Alternatively, the secondary battery 2 includes a plurality of unit cells, i.e., a plurality of unit cells are connected in series to constitute a battery pack. Within a second preset time period, when the voltage of at least one single battery reaches the cut-off voltage, the control module 106 controls the first switch 102 to be closed and the second switch 104 to be opened, so that the charging circuit 101 is connected and the discharging circuit 103 is disconnected, and the storage battery 2 is switched from the discharging mode to the floating charging mode. The voltage information of the single battery can be obtained by detecting the battery information acquisition module. Therefore, damage caused by transient discharge of a certain single battery of the storage battery 2 can be avoided, and the storage battery 2 is protected.
In one embodiment, the storage battery testing and maintaining device 1 further includes a battery information collecting module (not shown in the figure) for collecting internal resistance information or voltage information of the storage battery 2. The control module 106 is in electrical communication with the battery information collecting module, and is configured to control the first switch 102 to be opened and the second switch 104 to be closed when the internal resistance information or the voltage information of the storage battery 2 reaches the first threshold condition, so that the storage battery 2 is switched from the floating charge mode to the discharge mode. It is understood that the internal resistance value of the battery 2 is gradually increased in the discharge mode, and the voltage value of the battery 2 is gradually decreased in the discharge mode.
In one example, the battery information collecting module may be a battery voltage collecting module for collecting voltage values of a single battery of the storage battery 2, and the first threshold condition may be 2.18V. In other words, when the voltage value of a certain battery of the storage battery 2 is less than or equal to 2.18V, the control module 106 controls the first switch 102 to be opened and the second switch 104 to be closed, so that the storage battery 2 is switched from the float mode to the discharge mode.
In another example, the battery information collecting module may be a battery internal resistance collecting module configured to collect internal resistance values of the battery cells of the storage battery 2, and the first threshold condition may be 130% of an average value of internal resistances of the battery cells when the storage battery 2 is shipped. In other words, when the internal resistance value of a certain battery of the storage battery 2 is greater than or equal to 130% of the average internal resistance value of the single battery when the storage battery 2 is shipped, the control module 106 controls the first switch 102 to be opened and the second switch 104 to be closed, so that the storage battery 2 is switched from the floating charge mode to the discharge mode.
Further, in the discharging mode, when the internal resistance information or the voltage information of the storage battery 2 reaches the second threshold condition, the trigger control module 106 controls the first switch 102 to be closed and the second switch 104 to be opened, and controls the dc voltage regulating module 105 to regulate the output voltage of the dc charging device 3 from the float voltage to the uniform charging voltage within a third preset time period, so that the storage battery 2 is switched from the discharging mode to the uniform charging mode.
It is understood that at the end of the third preset time period, the control module 106 controls the dc voltage regulating module 105 to regulate the output voltage of the dc charging device 3 from the equalizing voltage to the floating voltage, so as to switch the storage battery 2 from the equalizing mode to the floating mode.
In one example, the battery information collecting module may be a battery voltage collecting module for collecting voltage values of the single batteries of the storage battery 2, and the second threshold condition may be a cut-off voltage of discharging of the single batteries, for example, may be 1.70V. That is, in the discharging process of the storage battery 2, when the voltage value of a certain battery reaches 1.70V, the control module controls the first switch 102 to be closed and the second switch 104 to be opened, and controls the dc voltage regulating module 105 to regulate the output voltage of the dc charging device 3 from the float voltage to the uniform voltage within a third preset time period, so that the storage battery 2 is switched from the discharging mode to the uniform charging mode. The third preset time period may be specifically set by measuring a time period required for the storage battery 2 to be charged from the cutoff voltage to the full charge state.
In another example, the battery information collecting module may be a battery internal resistance collecting module configured to collect internal resistance values of the single batteries of the storage battery 2, and the second threshold condition may be 160% of an average internal resistance value of the single batteries when the storage battery 2 is shipped from a factory. That is, in the discharging process of the storage battery 2, when the internal resistance value of a certain battery reaches 160% of the average internal resistance value of a single battery when the storage battery 2 leaves the factory, the control module controls the first switch 102 to be closed and the second switch 104 to be opened, and controls the dc voltage regulating module 105 to regulate the output voltage of the dc charging device 3 from the float voltage to the uniform voltage within a third preset time period, so that the storage battery 2 is switched from the discharging mode to the uniform voltage.
In addition, the first threshold condition, the second threshold condition and the third preset time period may be set manually through an operation interface of the control module 106.
Through the technical scheme, the maintenance mode of the storage battery 2 can be triggered. Specifically, when the first threshold condition is reached, the control module 106 controls the first switch 102 and the second switch 104 to operate to switch the storage battery 2 to the discharge mode; when a second threshold condition is reached, the control module 106 controls the first switch 102, the second switch 104 and the dc voltage regulation module 105 to operate so as to switch the storage battery 2 to the uniform charging mode; at the end of the third preset time period, the control module 106 controls the first switch 102, the second switch 104 and the dc voltage regulating module 105 to operate, so as to switch the storage battery 2 to the floating charge mode. Therefore, the parameters (internal resistance or voltage value) of the storage battery 2 can be recovered to normal values, so that the purposes of maintaining and testing the storage battery 2 are achieved; and when the parameters of the single battery cannot be recovered to the normal values, the operation and maintenance personnel are reminded to replace the storage battery 2.
In one embodiment, as shown in fig. 1, the first switch 102 and the second switch 104 are both contactors, and the two contactors (i.e., the first contactor and the second contactor) are electrically interlocked.
The contactor may take various forms known to those skilled in the art, as long as it is closed or opened under the control of the control module 106. It is understood that the first switch 102 and the second switch 104 may be connected by wires to form an electrical interlock, i.e., one of the first switch 102 and the second switch 104 is closed and the other is automatically opened. Therefore, the first switch 102 and the second switch 104 can be prevented from being simultaneously closed or simultaneously opened, thereby achieving the effect of electrically protecting the battery 2.
In one example, the charging circuit 101 and the discharging circuit 103 are arranged in parallel and are both connected to both the positive and negative poles of the storage battery 2. The direct current charging device 3 includes two direct current buses, the charging circuit 101 is connected between the two direct current buses and the positive and negative poles of the storage battery 2, and the first contactor is used for simultaneously connecting or disconnecting the two direct current buses and the positive and negative poles of the storage battery 2. The discharging circuit 103 is connected between both ends of the discharging load and the positive and negative poles of the storage battery 2, and the second contactor is used to simultaneously connect or disconnect both ends of the discharging load and the positive and negative poles of the storage battery 2.
In one embodiment, the resistance of the discharge load is adjustable. Illustratively, the discharge load may be a step-adjustable load. The power of the discharging load can be adjusted by manually adjusting the resistance of the discharging load, so that the discharging load can be matched with the storage batteries 2 with different parameters, and the application range of the storage battery testing and maintaining device 1 is widened.
In one embodiment, the battery test and maintenance device 1 further comprises a heat sink. The heat dissipation device is in electrical communication with the control module 106, and the control module 106 is configured to control the heat dissipation device to be turned on or off according to the internal temperature of the storage battery testing and maintaining device 1. Exemplarily, the storage battery testing and maintaining device 1 may be disposed inside the dc power supply screen, the heat dissipation device may be a fan, and the control module 106 controls the on/off of the fan or adjusts the rotation speed of the fan according to the internal temperature of the dc power supply screen to dissipate heat inside the dc power supply screen, so as to ensure that the temperature inside the dc power supply screen is within a reasonable range.
In one embodiment, the charging circuit 101 is provided with a circuit breaker 107; and/or the discharge circuit 103 is provided with a fuse 108.
Illustratively, as shown in fig. 1, the charging circuit 101 is provided with a circuit breaker 107, and the discharging return is provided with a fuse 108. The circuit breaker 107 is a switching device capable of closing, carrying and opening/closing a current under a normal circuit condition and closing, carrying and opening/closing a current under an abnormal circuit condition within a predetermined time; the fuse 108 is configured to break the discharge circuit 103 by fusing a melt by heat generated by itself when a current of the discharge circuit 103 exceeds a predetermined value. By arranging the circuit breaker 107 and the fuse 108, the charging circuit 101 or the discharging circuit 103 can be disconnected in time when the current of the charging circuit 101 or the discharging circuit 103 is abnormal, so that the function of protecting the circuit is achieved, and the safety of the storage battery 2 in the charging process or the discharging process can be improved.
In one specific example, as shown in fig. 2, the control module 106 is in electrical communication with the contactor KM1 (i.e., the first switch 102), the contactor KM2 (i.e., the second switch 104), the internal resistance voltage acquisition module (i.e., the battery information acquisition module), the test start time setting module, the test end time setting module, and the dc voltage regulation module 105, respectively, to form a dynamic loop control system. Specifically, the control module 106 controls the first switch 102, the second switch 104 and the dc voltage regulation module 105 of the contactor to increase or decrease the voltage according to the triggering conditions, such as the time condition and the threshold condition, so as to control the floating charge, the uniform charge and the discharge of the battery pack. And whether the storage battery 2 exits the discharging mode is judged according to the feedback value of the battery information acquisition module so as to realize the protection function of the storage battery 2.
According to the storage battery test maintenance device 1 of the embodiment of the application, by adopting the scheme, the storage battery 2 can be uniformly charged and discharged at regular intervals, and the storage battery test maintenance device has the advantages of low labor cost, high maintenance efficiency, high safety and the like, and is high in timeliness and stability of regular maintenance, so that the power supply reliability of the standby power supply of the data center direct-current power supply screen is ensured.
The embodiment of the application provides a power distribution station of a data center, which comprises the storage battery testing and maintaining device 1 provided by the embodiment of the application.
For example, the distribution station of the data center may be powered by a dc power panel, and the dc power panel uses a storage battery as a backup dc power source, and the storage battery testing and maintaining apparatus 1 may be used to test and maintain the storage battery.
The storage battery testing and maintaining device 1 of the embodiment is adopted in the power distribution station of the data center, so that the testing of the standby direct-current power supply and the labor cost and the time cost of maintenance can be reduced, the timeliness and the stability of periodic maintenance can be improved, and the power supply reliability of the power distribution station of the data center is guaranteed.
A control method according to an embodiment of the present application, which can be applied to the battery test maintenance apparatus according to the above-described embodiment of the present application, is described below with reference to fig. 3 to 5.
Wherein, battery test maintenance device includes: the charging loop is used for connecting the storage battery and the direct current charging equipment and is provided with a first switch; the discharging loop is used for connecting the storage battery and a discharging load and is provided with a second switch; and the direct current voltage regulating module is used for regulating the output voltage of the direct current charging equipment.
As shown in fig. 3, the control method includes:
step S301: and under the condition that the first time condition is reached, the first switch is controlled to be closed and the second switch is controlled to be opened within a first preset time period, and the direct-current voltage regulating module is controlled to regulate the output voltage of the direct-current charging equipment to the uniform charging voltage.
By controlling the first switch to open and the second switch to close when the first time condition is reached, the battery can be put into a discharge mode from a float charge mode. Therefore, the storage battery can be automatically and uniformly charged regularly, manual test maintenance is not needed, the storage battery charging system has the advantages of low labor cost, high maintenance efficiency, high safety and the like, delay maintenance caused by human factors can be eliminated, timeliness and stability of regular maintenance are improved, and power supply reliability of the standby power supply of the data center direct-current power supply screen is guaranteed.
In one embodiment, as shown in fig. 4, the secondary battery includes a plurality of unit cells. The control method further comprises the following steps:
step S401: and under the condition that a second time condition is reached, controlling the first switch to be switched off and the second switch to be switched on within a second preset time length.
By controlling the first switch to be switched off and the second switch to be switched on when the second time condition is reached, the storage battery can be switched from the floating charge mode to the discharge mode, so that the storage battery is automatically controlled to discharge periodically. Therefore, through periodic uniform charging and discharging tests, the activation effect on the polar plate of the storage battery can be improved, and single batteries with poor performance can be found and replaced and maintained in time, so that the service life of the storage battery is prolonged, and the power supply reliability is improved.
Optionally, with continuing reference to fig. 4, the method further comprises:
step S402: and controlling the first switch to be closed and the second switch to be opened under the condition that the voltage of at least one single battery reaches the cut-off voltage within a second preset time period. The storage battery comprises a plurality of single batteries.
The first switch is controlled to be closed and the second switch is controlled to be opened when the voltage of at least one single battery reaches the cut-off voltage, so that the storage battery can finish the discharging mode, the storage battery is prevented from being damaged due to continuous discharging when the voltage of the storage battery is lower than the cut-off voltage, and the safety of the storage battery in the discharging mode is improved.
In one embodiment, the storage battery testing and maintaining device further comprises a battery information acquisition module for acquiring internal resistance information or voltage information of the storage battery.
As shown in fig. 5, the control method further includes:
step S501: under the condition that the internal resistance information or the voltage information of the storage battery reaches a first threshold value condition, controlling the first switch to be switched off and the second switch to be switched on;
step S502: and under the condition that the internal resistance information or the voltage information of the storage battery reaches a second threshold value condition, controlling the first switch to be closed and the second switch to be opened, and controlling the direct-current voltage regulating module to regulate the output voltage of the direct-current charging equipment from the float charging voltage to the uniform charging voltage within a third preset time period.
Through the technical scheme, the maintenance mode of the storage battery can be triggered. The storage battery is discharged, uniformly charged and then subjected to floating charging, so that the parameters (internal resistance value or voltage value) of the storage battery can be recovered to normal values, and the purposes of maintaining and testing the storage battery are achieved; and when the parameters of the single battery cannot be recovered to the normal values, operation and maintenance personnel are reminded to replace the storage battery so as to ensure the power supply reliability of the storage battery.
A controller and a readable storage medium are also provided according to embodiments of the present application.
As shown in fig. 6, it is a block diagram of a controller of a control method according to an embodiment of the present application. The controller is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The controller may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application that are described and/or claimed herein.
As shown in fig. 6, the controller includes: one or more processors 601, memory 602, and interfaces for connecting the various components, including a high-speed interface and a low-speed interface. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions executed within the controller, including instructions stored in or on the memory to display graphical information of the GUI on an external input/output device (such as a display device coupled to the interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple controllers may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system). In fig. 6, one processor 601 is taken as an example.
The memory 602 is a non-transitory computer readable storage medium as provided herein. The memory stores instructions executable by at least one processor to cause the at least one processor to execute the control method provided by the application. The non-transitory computer-readable storage medium of the present application stores computer instructions for causing a computer to execute the control method provided by the present application.
The memory 602, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the control method in the embodiments of the present application. The processor 601 executes various functional applications of the server and data processing by running non-transitory software programs, instructions, and modules stored in the memory 602, that is, implements the control method in the above-described method embodiments.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the controller, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 602 optionally includes memory located remotely from the processor 601, which may be connected to the controller via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The controller may further include: an input device 603 and an output device 604. The processor 601, the memory 602, the input device 603 and the output device 604 may be connected by a bus or other means, and fig. 6 illustrates the connection by a bus as an example.
The input device 603 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the controller, such as an input device like a touch screen, keypad, mouse, track pad, touch pad, pointer stick, one or more mouse buttons, track ball, joystick, etc. The output devices 604 may include a display device, auxiliary lighting devices (e.g., LEDs), and tactile feedback devices (e.g., vibrating motors), among others. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.
Various implementations of the systems and techniques described here can be realized in digital electronic circuitry, integrated circuitry, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
These computer programs (also known as programs, software applications, or code) include machine instructions for a programmable processor, and may be implemented using high-level procedural and/or object-oriented programming languages, and/or assembly/machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so as to solve the defects of high management difficulty and weak service expansibility in the traditional physical host and Virtual Private Server (VPS) service. The server may also be a server of a distributed system, or a server incorporating a blockchain.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present application may be executed in parallel, sequentially, or in different orders, as long as the desired results of the technical solutions disclosed in the present application can be achieved, and the present invention is not limited herein.
The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (16)

1. A battery test maintenance device, comprising:
the charging loop is used for connecting the storage battery and the direct-current charging equipment and is provided with a first switch;
the discharging loop is used for connecting the storage battery and a discharging load and is provided with a second switch;
the direct current voltage regulating module is used for regulating the output voltage of the direct current charging equipment;
a control module in electrical communication with the first switch, the second switch, and the DC voltage regulation module;
the control module is used for controlling the first switch to be switched on and the second switch to be switched off within a first preset time period under the condition that a first time condition is reached, and controlling the direct current voltage regulating module to regulate the output voltage of the direct current charging equipment from floating charging voltage to uniform charging voltage.
2. The battery test maintenance device of claim 1, the control module to control the first switch to open and the second switch to close for a second preset length of time if a second time condition is reached.
3. The storage battery testing and maintaining device according to claim 2, wherein the storage battery comprises a plurality of single batteries, and the control module controls the first switch to be closed and the second switch to be opened when the voltage of at least one single battery reaches a cut-off voltage within the second preset time period.
4. The battery test maintenance device of claim 1, further comprising:
the battery information acquisition module is used for acquiring internal resistance information or voltage information of the storage battery;
the control module is in electrical communication with the battery information acquisition module and is used for controlling the first switch to be switched off and the second switch to be switched on when the internal resistance information or the voltage information of the storage battery reaches a first threshold condition.
5. The storage battery testing and maintaining device according to claim 4, wherein the control module is configured to control the first switch to be turned on and the second switch to be turned off when the internal resistance information or the voltage information of the storage battery reaches a second threshold condition, and control the dc voltage regulating module to regulate the output voltage of the dc charging equipment from the floating voltage to the uniform voltage within a third preset time period.
6. A battery test maintenance device according to any of claims 1 to 5, the first switch and the second switch being contactors and the two contactors being electrically interlocked.
7. A battery test maintenance device according to any one of claims 1 to 5, the resistance of the discharging load being adjustable.
8. A battery test maintenance apparatus according to any one of claims 1 to 5, further comprising:
and the heat dissipation device is in electrical communication with the control module, and the control module is used for controlling the opening and closing of the heat dissipation device according to the internal temperature of the storage battery testing and maintaining device.
9. A battery test and maintenance device according to any of claims 1 to 5, the charging circuit being provided with a circuit breaker; and/or the presence of a gas in the gas,
the discharging loop is provided with a fuse.
10. A control method is applied to a storage battery testing and maintaining device, and the storage battery testing and maintaining device comprises the following steps: the charging loop is used for connecting the storage battery and the direct-current charging equipment and is provided with a first switch; the discharging loop is used for connecting the storage battery and a discharging load and is provided with a second switch; the direct current voltage regulating module is used for regulating the output voltage of the direct current charging equipment;
the method comprises the following steps:
and under the condition that a first time condition is reached, controlling the first switch to be closed and the second switch to be opened within a first preset time, and controlling the direct-current voltage regulating module to regulate the output voltage of the direct-current charging equipment to the uniform charging voltage.
11. The method of claim 10, further comprising:
and under the condition that a second time condition is reached, controlling the first switch to be switched off and the second switch to be switched on within a second preset time length.
12. The method of claim 11, the battery comprising a plurality of cells, the method further comprising:
and controlling the first switch to be closed and the second switch to be opened under the condition that the voltage of at least one single battery reaches a cut-off voltage within the second preset time period.
13. The method of claim 10, the battery test maintenance device further comprising: the battery information acquisition module is used for acquiring internal resistance information or voltage information of the storage battery;
the method further comprises the following steps:
under the condition that the internal resistance information or the voltage information of the storage battery reaches a first threshold value condition, controlling the first switch to be opened and the second switch to be closed;
and under the condition that the internal resistance information or the voltage information of the storage battery reaches a second threshold value condition, controlling the first switch to be switched on and the second switch to be switched off, and controlling the direct-current voltage regulating module to regulate the output voltage of the direct-current charging equipment from floating charging voltage to uniform charging voltage within a third preset time period.
14. A controller, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 10-13.
15. A non-transitory computer readable storage medium having stored thereon computer instructions for causing a computer to perform the method of any one of claims 10-13.
16. A substation of a data center, comprising the battery test maintenance apparatus of any one of claims 1 to 9.
CN202011008320.3A 2020-09-23 2020-09-23 Storage battery test maintenance device, control method and power distribution station of data center Pending CN112186844A (en)

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CN113328501A (en) * 2021-06-30 2021-08-31 港华能源投资有限公司 Flexible connecting device and framework for direct-current screen battery module of energy station
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