CN112151888B - Carrier rocket lithium battery intelligent management equipment - Google Patents
Carrier rocket lithium battery intelligent management equipment Download PDFInfo
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- CN112151888B CN112151888B CN202011025112.4A CN202011025112A CN112151888B CN 112151888 B CN112151888 B CN 112151888B CN 202011025112 A CN202011025112 A CN 202011025112A CN 112151888 B CN112151888 B CN 112151888B
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- 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
- H01M10/443—Methods for charging or discharging in response to temperature
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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
- H02J7/007—Regulation of charging or discharging current or voltage
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- 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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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a carrier rocket lithium battery intelligent management device which comprises a device body, wherein the device body is electrically connected with rocket lithium batteries with different specifications and different interfaces through different adapter cables; the equipment body comprises a portable shell, a main control module and a power supply module, wherein the main control module and the power supply module are arranged in the shell; the main control module is electrically connected with the power supply module; the main control module is used for receiving the actual temperature of the lithium battery on the arrow and judging whether the actual temperature meets the requirement of charging temperature; when the actual temperature does not meet the requirement of the charging temperature, power supply control is firstly carried out on a heating part in the lithium battery on the arrow through a power supply module so as to realize heating control on the lithium battery on the arrow; and when the actual temperature meets the requirement of the charging temperature, performing charging and discharging control on the lithium battery on the rocket through the power supply module according to the selected charging and discharging mode. The invention realizes the intelligent charging management mode of the lithium battery on the rocket, which is portable, universal, multifunctional, remote and the like.
Description
Technical Field
The invention relates to the field of rocket battery management systems, in particular to intelligent management equipment for a lithium battery of a carrier rocket.
Background
The battery on the carrier rocket is complex to operate, and after each test is finished, the battery needs to be disassembled from the rocket body and then is charged nearby by using a short cable.
When the battery needs to be discharged, a set of discharging equipment needs to be configured separately for operation. In addition, the rocket battery is in a low-temperature environment, and when charging and discharging are carried out, the rocket battery needs to reach the temperature required by charging and discharging, so that the temperature of the rocket battery needs to be controlled, and further the temperature in the rocket battery needs to be monitored, so that the charging and discharging control is carried out after the rocket battery meets the temperature requirement of charging and discharging. However, when the battery on the arrow is used for heating control, the battery needs to be powered by a power supply in the ground test and launch control system to realize heating, and the method cannot meet the requirements of simple operation, repeated test, unattended online charging, quick launching and the like of products.
The modern carrier rocket is developed in the direction of rapidness and maneuverability, various charging management devices, complex heating modes of lithium batteries on the rocket, requirement of manual repeated operation and the like all become important factors for restricting the rapid maneuvering launching of the carrier rocket. In the field of carrier rocket test and launch control systems, no description or report of similar technologies to the carrier rocket test and launch control system is found at present, and similar data at home and abroad are not collected.
Disclosure of Invention
The embodiment of the application provides a carrier rocket lithium battery intelligent management device, the problem of complex operation of charging the battery on the existing rocket repeatedly by going up and down the rocket is solved, wherein, the internal connection relation of the battery heating device is complex, the battery is charged, discharged, heated and balanced device is separated and can not be used in general, and the technical problems that the battery can only be operated in a short distance through a short cable are solved.
The embodiment of the application provides intelligent management equipment for lithium batteries of a carrier rocket, which comprises an equipment body, wherein the equipment body is connected with lithium batteries on the rocket with different specifications and different interfaces through different adapter cables; the equipment body comprises a portable shell, a main control module and a power supply module, wherein the main control module and the power supply module are arranged in the shell; the main control module is electrically connected with the power supply module;
the main control module is used for receiving the actual temperature of the lithium battery on the arrow and judging whether the actual temperature meets the requirement of charging temperature; when the actual temperature does not meet the requirement of the charging temperature, power supply control is firstly carried out on heating parts in the lithium battery on the arrow through the power supply module so as to realize heating control on the lithium battery on the arrow; when the actual temperature meets the requirement of the charging temperature, performing charging and discharging control on the lithium battery on the rocket through the power supply module according to the selected charging and discharging mode; wherein, the charge-discharge mode includes: a charging mode, a charging equalization mode and a discharging mode.
Preferably, the power supply module comprises two parts,
the first part comprises an AC/DC converter, and the obtained 220V alternating current is input, rectified through a full bridge and then passes through the AC/DC converter to supply power to a heating component in the lithium battery on the rocket;
the second part comprises a DC/DC converter, and when the overall voltage of the lithium battery on the arrow is lower than a target voltage, the lithium battery on the arrow is charged in a constant current mode; when the overall voltage reaches the target voltage, the charging mode is switched from constant-current charging to constant-voltage charging, and when the charging current decreases below the target current, the charging is ended.
Preferably, the method for controlling the heating of the lithium battery on the arrow by using the power module comprises the following steps:
before judging whether the actual temperature meets the charging temperature requirement, the method further comprises the following steps:
detecting a plurality of preset temperature detection points through a special temperature-sensitive resistor arranged in the lithium battery on the arrow; the special temperature-sensitive resistor is electrically connected with the main control module;
the main control module receives the actual temperature detected by the special temperature-sensitive resistor, compares the actual temperature with the charging temperature and judges whether the actual temperature meets the requirement of the charging temperature;
heating control is carried out according to the comparison result; further comprising:
when the actual temperature does not meet the requirement of the charging temperature, a heating loop is directly connected to supply power to a heating part in the lithium battery on the arrow, the lithium battery on the arrow is heated through the heating part, and meanwhile, the main control module receives the actual temperatures of the plurality of temperature detection points in real time and is used for performing two-out-of-three redundancy judgment on the actual temperatures of the plurality of temperature detection points in the lithium battery on the arrow;
and when the actual temperature meets the requirement of the charging temperature, stopping supplying power to the heating part so as to automatically stop heating the lithium battery on the arrow.
Preferably, a sampling module and a signal conditioning module are arranged in the shell, and the signal conditioning module is electrically connected with the sampling module and the main control module respectively;
the sampling module is used for sampling a current signal and a voltage signal output by the power supply;
the signal conditioning module is used for conditioning the sampling signal of the sampling module to obtain sampling data;
the main control module is used for receiving sampling data; the sampling data comprises actual current, actual overall voltage and actual monomer voltage.
Preferably, a battery management module is arranged in the shell, and the main control module is electrically connected with the battery management module; the battery management module is used for monitoring the actual monomer voltage of the lithium battery on the arrow so as to perform balance control on the lithium battery monomer on the arrow.
Preferably, the power module performs single current loop control to realize constant current charging; further comprising: the main control module takes the received target current as the target current of the current loop; and transmitting the difference between the target current and the actual current to the PI regulator so as to realize that the actual output current of the power supply changes along with the change of the target current.
Preferably, the voltage loop control is performed through the power supply module to realize constant voltage charging; further comprising: the master control module takes the received target voltage as the target voltage of the voltage ring; and transmitting the difference between the target voltage and the actual voltage to the PI regulator, so that the actual output voltage of the power supply changes along with the change of the target voltage.
Preferably, a relay module is arranged in the shell, the relay module is electrically connected with the main control module, and automatic on-off of heating control and charging and discharging control is realized through the relay module.
Preferably, the casing surface is equipped with touch-control display, operating button, touch-control display operating button respectively with the host system electricity is connected, when carrying out local control, through control interface on the touch-control display perhaps operating button realizes heating control and charging control's switching, and through touch-control display sets up a plurality of parameters including target voltage, target current, charging temperature, heating temperature, control, battery monomer voltage, total voltage on the lithium cell on the arrow.
Preferably, an ethernet port is further disposed on the surface of the housing, and the ethernet port is connected to the main control module; the system is connected with an upper computer directly or indirectly through an Ethernet port access measurement and launch control system whole network, and the upper computer is used for carrying out remote charging control and remote heating control on the lithium battery on the arrow.
The intelligent management device for the lithium battery of the carrier rocket provided by the embodiment of the application at least has the following technical effects:
(1) owing to adopted portable casing to locate host system, power module, sampling module, signal conditioning module, battery management module, relay module in the casing, with this portability, the multi-functional design of realization equipment, wherein, portable embodiment is at small in size, and equipment is multiple functional, with the high integration in 1 portable quick-witted incasement of various ground equipment such as the lithium cell charge that tradition is discrete, discharge, balanced, heat, monitoring, and can expand fast, remove and receive, the simplified control mode, operating personnel's security improves.
(2) Because the equipment is connected with the lithium batteries on the arrow with different specifications and different interfaces through different adapter cables, the equipment is generalized, the application range of the equipment is expanded, and the cost is reduced.
(3) Due to the adoption of the touch display and the operation buttons, the near-end operation function is realized, and the use by an operator is facilitated.
(4) Due to the fact that the Ethernet port is arranged, the equipment can be connected to the whole network of the measurement and launch control system through the Ethernet port and is directly or indirectly connected to the upper computer, remote control over the lithium battery on the rocket through the upper computer is achieved, and a solid foundation is laid for quick response, simple use and unattended operation of the carrier rocket.
Drawings
FIG. 1 is a block diagram of an internal structure of a lithium battery intelligent management device of a launch vehicle according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a lithium battery intelligent management device of a launch vehicle according to an embodiment of the application;
fig. 3 is a schematic diagram illustrating management of a lithium battery on a launch vehicle arrow in a remote mode by the device according to the embodiment of the present application.
Reference numerals: the device comprises a device body 10, a lithium battery 20 on the arrow, a shell 11, a main control module 12, a power module 13, a battery management module 14, a sampling module 15, a signal conditioning module 16, a relay module 17 and a power supply 18.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Referring to fig. 1-3, the present embodiment provides a smart management device for a lithium battery of a launch vehicle, which includes a device body 10. The device is a set of portable multifunctional lithium battery intelligent charging management device and has the functions of charging, discharging, monomer balancing, heating control and the like.
The device body 10 in this embodiment is electrically connected with the lithium batteries 20 on the arrow with different specifications and different interfaces through different adapter cables, so as to realize the generalization of the device; the adapter cable can be a long cable, and long-distance charging and discharging management over 100m is carried out on the lithium battery 20 on the rocket through the long cable, so that various kinds of management such as charging, discharging, balancing, heating, monitoring and the like of the lithium batteries of various subsystems such as remote control, remote measurement, external security, pushing and the like on the rocket are realized remotely. The adapter cable can also be a short cable, and is directly connected with the lithium battery 20 on the arrow through the short cable, so that the near-end operation is realized.
The device body 10 comprises a portable shell 11, a main control module 12 and a power module 13 which are arranged in the shell 11; the main control module 12 is electrically connected with the power module 13. In one embodiment, the host module 12 employs an X86-based host chip.
In order to realize portability of the device, the portable housing 11 in this embodiment is a portable case with a size of 4U, and various ground devices such as charging, discharging, balancing, heating, monitoring and the like of the conventionally separated lithium battery are highly concentrated in one portable case, so that the device can be quickly controlled to perform corresponding operations on the lithium battery 20 on the arrow, and the device can be quickly evacuated, thereby ensuring safety of operators.
The main control module 12 is configured to receive an actual temperature of the lithium battery 20 on the rocket and determine whether the actual temperature meets a charging temperature requirement; when the actual temperature does not meet the requirement of the charging temperature, power supply control is firstly carried out on the heating part in the lithium battery 20 on the arrow through the power module 13 so as to realize heating control on the lithium battery 20 on the arrow; when the actual temperature meets the requirement of the charging temperature, the lithium battery 20 on the rocket is subjected to charging and discharging control through the power module 13 according to the selected charging and discharging mode; wherein, the charge-discharge mode includes: a charging mode, a charging equalization mode and a discharging mode. In one embodiment, the heating component in the arrow lithium battery 20 is a heating tape, and generates heat after being powered on to heat the arrow lithium battery 20. Wherein, the service environment based on lithium cell on the arrow is low temperature environment, and when lithium cell on the arrow need carry out operations such as charge-discharge, the temperature that needs to promote lithium cell on the arrow to the temperature requirement that satisfies the charging, consequently need carry out temperature monitoring and temperature control to lithium cell on the arrow in this embodiment to reach the charging condition who satisfies the lithium cell.
Before the control management such as charging, discharging, balancing, heating and monitoring of the rocket lithium battery 20 is performed, the intelligent management device for the carrier rocket lithium battery of the embodiment sets various control parameters, which at least include: target voltage, target current, charging temperature, heating temperature, control, cell voltage, total voltage. In addition, the lithium battery 20 on the arrow is composed of a plurality of lithium battery 20 cells on the arrow.
The intelligent management device for the lithium battery of the carrier rocket in the embodiment utilizes the power module 13 to sequentially perform heating control and charging control, and can perform charging and discharging control only after the actual temperature meets the charging temperature requirement. In order to combine the temperature control and the charge and discharge control of the lithium battery 20 on the arrow, the power module 13 in this embodiment includes two parts. The lithium battery 20 on the arrow is controlled to be heated by the first part, and the lithium battery 20 on the arrow is controlled to be charged and discharged by the second part.
The first part comprises an AC/DC (alternating current-direct current) converter, and the acquired 220V alternating current is input, rectified through a full bridge and then passes through the AC/DC converter to supply power to heating parts in the lithium battery 20 on the rocket. The AC/DC converter in this embodiment adopts a Boost PFC converter, which effectively reduces the harmonic waves of the input rectifying device of the electric device by using a Power Factor Correction (PFC) technique, and greatly reduces the total harmonic distortion coefficient of the input current, thereby greatly improving the Power Factor.
Further, the method for controlling the heating of the lithium battery 20 on the rocket by using the power module 13 comprises the following steps:
(1) before judging whether the actual temperature meets the charging temperature requirement, the method further comprises the following steps:
detecting a plurality of preset temperature detection points through a special temperature-sensitive resistor arranged in the lithium battery 20 on the arrow; the special temperature-sensitive resistor is electrically connected with the main control module 12; the main control module 12 receives the actual temperature detected by the dedicated temperature-sensitive resistor, compares the actual temperature with the charging temperature, and determines whether the actual temperature meets the charging temperature requirement.
(2) Heating control is carried out according to the comparison result; further comprising:
when the actual temperature does not meet the requirement of the charging temperature, the heating loop is directly connected to supply power to the heating part in the lithium battery 20 on the arrow, the lithium battery 20 on the arrow is heated through the heating part, and meanwhile, the main control module 12 receives the actual temperatures of the plurality of temperature detection points in real time and is used for performing two-out-of-three redundancy judgment on the actual temperatures of the plurality of temperature detection points in the lithium battery 20 on the arrow.
(3) When the actual temperature meets the charging temperature requirement, the power supply to the heating component is stopped, so that the heating of the lithium battery 20 on the arrow is automatically stopped.
The second part comprises a DC/DC (direct current to direct current power supply) converter, and when the overall voltage of the lithium battery 20 on the rocket is lower than the target voltage, the lithium battery 20 on the rocket is charged in a constant current mode; when the overall voltage reaches the target voltage, the charging mode is switched from constant-current charging to constant-voltage charging, and when the charging current decreases below the target current, the charging is ended. The target voltage in this example is 32V and the target current is 0.2A.
The power module 13 is used for single current loop control to realize constant current charging; further comprising: the main control module 12 takes the received target current as a target current of the current loop; the difference between the target current and the actual current is transmitted to the PI regulator, so that the actual output current of the power supply 18 changes along with the change of the target current.
Voltage loop control is performed through the power supply module 13 to realize constant voltage charging; further comprising: the main control module 12 takes the received target voltage as a target voltage of the voltage loop; and transmitting the difference between the target voltage and the actual voltage to the PI regulator to realize that the actual output voltage of the power supply 18 changes along with the change of the target voltage. The voltage of the remote compensation in this embodiment can be implemented as a voltage loop.
In this embodiment, a sampling module 15 and a signal conditioning module 16 are arranged in the housing 11, and the signal conditioning module 16 is electrically connected with the sampling module 15 and the main control module 12 respectively; the sampling module 15 is configured to sample a current signal and a voltage signal output by the power supply 18; the signal conditioning module 16 is configured to amplify the sampled data of the sampling module 15. The main control module 12 receives the sampling data of the sampling module 15; the sampled data includes actual current, actual bulk voltage, and actual cell voltage. Further, in the present embodiment, a signal conditioning module 16 is further provided,
in this embodiment, a battery management module 14 is disposed in the housing 11, and the main control module 12 is electrically connected to the battery management module 14; the battery management module 14 is configured to monitor an actual cell voltage of the lithium battery 20 on the arrow, so as to perform balance control on the lithium battery 20 on the arrow. In addition, in order to implement generalization of the device, the battery management module 14 in this embodiment is based on a self-adaptive design, and after the device body 10 is connected to the lithium battery 20 on the arrow, the battery management module 14 automatically identifies the number of the lithium batteries 20 on the arrow in series, so as to be applied to the lithium batteries 20 on the arrow with different specifications.
In order to realize the automatic on-off of each function of the device, a relay module 17 is arranged in the shell 11 in the embodiment, the relay module 17 is electrically connected with the main control module 12, and the automatic on-off of heating control and charging and discharging control is realized through the relay module 17.
The surface of the housing 11 in this embodiment is provided with a touch display and an operation button, so as to implement the near-end operation of the device. Based on the usage environment of the device body 10, in one embodiment, the touch display is a low temperature resistant liquid crystal touch display. The touch display and the operation buttons are respectively electrically connected with the main control module 12, and when local control is performed, switching between heating control and charging control is realized through a control interface or the operation buttons on the touch display, and a plurality of parameters including target voltage, target current, charging temperature, heating temperature, control, cell voltage and total voltage on the lithium battery 20 on the rocket are preset through the touch display. Further, the target voltage in the constant-voltage charging mode or the target current in the constant-current charging mode can be set through the touch display. For the arrow lithium batteries 20 with different specifications and different states, in this embodiment, a plurality of parameters including a target voltage, a target current, a charging temperature, a heating temperature, a control, a cell voltage, and a total voltage may be directly set through the touch display.
The surface of the housing 11 of this embodiment is further provided with an ethernet port for implementing remote control management of the device. The Ethernet port is connected with the main control module 12; the system is connected to an upper computer directly or indirectly through an Ethernet port access measurement and launch control system whole network, and the upper computer is used for carrying out remote charging control and remote heating control on the lithium battery 20 on the arrow. In this embodiment, a plurality of parameters including a target voltage, a target current, a charging temperature, a heating temperature, a control, a cell voltage, and a total voltage may be set by the upper computer, so as to realize remote charging control and remote heating control of the lithium battery 20 on the arrow.
The operation steps of the intelligent management device for the lithium battery of the carrier rocket are as follows:
step 1, in a remote operation mode, arranging an equipment body 10 in an underground equipment room of a rocket launching tower, connecting the equipment body with a lithium battery 20 on a rocket through a long rocket ground cable, accessing a total network of a measurement and launch control system through Ethernet, and directly or indirectly connecting an upper computer; in the close-range operation mode, the apparatus body 10 is directly connected with the lithium battery 20 on the arrow using a short cable.
And 2, setting various parameters of the lithium battery 20 on the arrow through the equipment body 10, wherein in the embodiment, the equipment body 10 is used for setting various parameters including target voltage, target current, charging temperature, heating temperature, control mode, cell voltage and total voltage parameters so as to realize control management of different functions of the lithium battery 20 on different arrows.
Step 3, connecting a special temperature-sensitive resistor by using the equipment body 10, wherein the special temperature-sensitive resistor is arranged in the lithium battery 20 on the arrow and used for detecting the internal temperature of the lithium battery 20 on the arrow in real time, automatically switching on a heating loop when the actual temperature value does not meet the charging and discharging requirements, performing heating control on the lithium battery 20 on the arrow, and simultaneously performing redundancy judgment on a plurality of detection points preset in the lithium battery 20 on the arrow by three-out-of-two; and when the actual temperature value meets the charge-discharge temperature requirement, automatically stopping heating control.
Step 4, switching to charge-discharge mode selection control on a touch display of the equipment body 10 after the actual temperature value meets the charge-discharge temperature requirement; the charge and discharge modes in this embodiment include a full charge mode, an equalizing charge mode, and a discharge mode.
And 5, in the charging mode, the device body 10 firstly performs constant-current mode charging according to preset target voltage and target current, and enters a constant-voltage charging mode when the total voltage reaches a threshold current.
And 6, when the equalizing charge mode is selected, the equipment body 10 performs equalizing charge and discharge on the lithium battery 20 monomer on the arrow according to preset battery monomer voltage and total voltage parameters.
And 7, when the discharge mode is selected, the device body 10 discharges the lithium battery 20 on the arrow according to preset battery monomer voltage and total voltage parameters.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The intelligent management equipment for the lithium batteries of the carrier rocket is characterized by comprising an equipment body, wherein the equipment body is electrically connected with the lithium batteries on the rocket with different specifications and different interfaces through different adapter cables; the adapter cable is a long cable or a short cable; the equipment body comprises a portable shell, a main control module and a power supply module, wherein the main control module and the power supply module are arranged in the shell; the main control module is electrically connected with the power supply module;
the main control module is used for receiving the actual temperature of the lithium battery on the arrow and judging whether the actual temperature meets the requirement of charging temperature; when the actual temperature does not meet the requirement of the charging temperature, power supply control is firstly carried out on heating parts in the lithium battery on the arrow through the power supply module so as to realize heating control on the lithium battery on the arrow; when the actual temperature meets the requirement of the charging temperature, performing charging and discharging control on the lithium battery on the rocket through the power supply module according to the selected charging and discharging mode; wherein, the charge-discharge mode includes: a charging mode, a charging equalization mode and a discharging mode;
the power supply module comprises two parts, wherein the first part comprises an AC/DC converter, and the obtained 220V alternating current is input, rectified through a full bridge and then passes through the AC/DC converter to supply power to a heating part in the lithium battery on the rocket; the second part comprises a DC/DC converter, and when the overall voltage of the lithium battery on the arrow is lower than a target voltage, the lithium battery on the arrow is charged in a constant current mode; when the overall voltage reaches the target voltage, the charging mode is changed from constant-current charging to constant-voltage charging, and when the charging current is reduced to be lower than the target current, the charging is finished;
the mode of realizing constant current charging by the power module through single current loop control is as follows: the main control module takes the received target current as the target current of the current loop; the difference between the target current and the actual current is transmitted to a PI regulator, so that the actual output current of the power supply changes along with the change of the target current;
through the power module carries out the voltage ring control and realizes that the mode of constant voltage charging does: the master control module takes the received target voltage as the target voltage of the voltage ring; and transmitting the difference between the target voltage and the actual voltage to the PI regulator, so that the actual output voltage of the power supply changes along with the change of the target voltage.
2. The intelligent management device for lithium batteries of launch vehicles according to claim 1, wherein the method for controlling the warming of the lithium batteries on the launch vehicles by using the power module comprises:
before judging whether the actual temperature meets the charging temperature requirement, the method further comprises the following steps:
detecting a plurality of preset temperature detection points through a special temperature-sensitive resistor arranged in the lithium battery on the arrow; the special temperature-sensitive resistor is electrically connected with the main control module;
the main control module receives the actual temperature detected by the special temperature-sensitive resistor, compares the actual temperature with the charging temperature and judges whether the actual temperature meets the requirement of the charging temperature;
heating control is carried out according to the comparison result; further comprising:
when the actual temperature does not meet the requirement of the charging temperature, a heating loop is directly connected to supply power to a heating part in the lithium battery on the arrow, the lithium battery on the arrow is heated through the heating part, and meanwhile, the main control module receives the actual temperatures of the plurality of temperature detection points in real time and is used for performing two-out-of-three redundancy judgment on the actual temperatures of the plurality of temperature detection points in the lithium battery on the arrow;
and when the actual temperature meets the requirement of the charging temperature, stopping supplying power to the heating part so as to automatically stop heating the lithium battery on the arrow.
3. The intelligent management device for lithium batteries of launch vehicles according to claim 1, characterized in that a sampling module and a signal conditioning module are arranged in said case, said signal conditioning module is electrically connected with said sampling module and said main control module respectively;
the sampling module is used for sampling a current signal and a voltage signal output by the power supply;
the signal conditioning module is used for conditioning the sampling signal of the sampling module to obtain sampling data;
the main control module is used for receiving sampling data; the sampling data comprises actual current, actual overall voltage and actual monomer voltage.
4. The intelligent management device for lithium batteries of launch vehicles according to claim 3, characterized in that a battery management module is arranged in said case, said main control module being electrically connected to said battery management module; the battery management module is used for monitoring the actual monomer voltage of the lithium battery on the arrow so as to perform balance control on the lithium battery monomer on the arrow.
5. The intelligent management device for lithium batteries of carrier rockets according to claim 1, wherein a relay module is arranged in said case, said relay module is electrically connected to said main control module, and said relay module is used to realize automatic on/off of heating control and charging/discharging control.
6. The intelligent management device for lithium battery of launch vehicle according to claim 1, wherein a touch display and an operation button are disposed on the surface of the case, the touch display and the operation button are electrically connected to the main control module, respectively, when performing local control, the switching between heating control and charging control is realized through the control interface on the touch display or the operation button, and the target voltage, the target current, the charging temperature parameter, the heating temperature parameter, the control parameter, the cell voltage and the total voltage parameter on the lithium battery on the launch vehicle are set through the touch display.
7. The intelligent management device for lithium batteries of launch vehicles according to claim 1, characterized in that the surface of said shell is further provided with an ethernet port, and said ethernet port is connected with said main control module; the system is connected with an upper computer directly or indirectly through an Ethernet port access measurement and launch control system whole network, and the upper computer is used for carrying out remote charging control and remote heating control on the lithium battery on the arrow.
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