CN114069782A - Power supply control system and control method of lithium capacitor - Google Patents
Power supply control system and control method of lithium capacitor Download PDFInfo
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- CN114069782A CN114069782A CN202111345620.5A CN202111345620A CN114069782A CN 114069782 A CN114069782 A CN 114069782A CN 202111345620 A CN202111345620 A CN 202111345620A CN 114069782 A CN114069782 A CN 114069782A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 20
- 239000003990 capacitor Substances 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000012216 screening Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 210000004556 brain Anatomy 0.000 claims abstract description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- 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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a power supply control system and a power supply control method of a lithium capacitor, and the power supply control system comprises a main controller, an external controller, a high-voltage controller, a motor, a BDU (brain-based data unit), a charger, a secondary controller II, a cell II, a switch, a cell I, a cell controller I, a secondary controller I, an external interface and an external instrument, wherein the cell controller I and the cell controller II are directly connected in series with the cell I and the cell II, the switch is arranged between the cell controller I and the cell controller II, the size of discharge current of a single cell I or the cell II can be respectively controlled and monitored in real time, and data signals are transmitted to the secondary controller I and the secondary controller II for screening and signal processing. The main controller of the invention completes data transmission by adopting an internal CAN protocol, and each device is provided with an independent controller to complete data acquisition, screening and processing and transmits the data to the main controller for unified command by adopting the internal CAN protocol.
Description
Technical Field
The invention belongs to the technical field of power supply control systems, and particularly relates to a power supply control system and a control method of a lithium capacitor.
Background
Along with the continuous development of the technology, the environmental protection consciousness of people is continuously enhanced, the application range of a lithium capacitor is continuously expanded, attention is paid to the fields of night illumination, storage transportation, logistics transportation and the like, a power supply control system stores electric power and timely controls the lithium capacitor to perform discharge operation with corresponding power according to information feedback to complete the work of specified equipment, the traditional lead storage battery has the advantages of small stored electric energy, large volume, heavy whole body and short service life, and the electrolyte has certain corrosivity; traditional power control system carries out unified control to a plurality of electric core groups, and the controller reacts when needing to cut off when emergency takes place for single electric core group and cuts off whole electric core groups, and the equipment condition in service is unknown just this moment, directly cuts off power and takes place danger easily.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a power supply control system and a power supply control method for a lithium capacitor.
In order to achieve the purpose, the invention adopts the technical scheme that:
a power control system and a control method of a lithium capacitor are disclosed, which comprises the following steps: the device comprises a main controller, an external controller, a high-voltage controller, a motor, a BDU (brain-based bus) controller, a charger, a secondary controller II, a cell II, a switch, a cell I, a cell controller I, a secondary controller I, an external interface and an external instrument, wherein the cell controller I and the cell controller II are directly connected in series with the cell I and the cell II, the switch is arranged between the cell controller I and the cell controller II and CAN respectively control and monitor the magnitude of discharge current of a single cell I or the cell II in real time, data signals are transmitted to the secondary controller I and the secondary controller II for screening and signal processing, signals collected by the secondary controller I and the secondary controller II are input into the main controller for unified command, and the main controller, the external controller, the high-voltage controller, the BDU, the secondary controller II, the secondary controller I, the external interface and the external instrument adopt an internal CAN protocol for data transmission, the main controller receives the data signals of the power supply control modules, processes the data, feeds the processed data back to the power supply modules, and outputs the signals to the external controller, the external instrument and the external interface.
The high-voltage controller and the BDU jointly form a battery protection module, so that a circuit can be protected from instantaneous large current impact during system electrification in the charging and discharging process, and equipment damage caused by high voltage generated by overload is prevented.
The BDU provides the interface for BMS power management system's main power, and the BDU receives the control signal of main control unit output, and control BDU closes or breaks off main road direct current to stop or start-up of control motor, the machine charges for electric core I and electric core II through BDU, and BDU measures and calculates electric core I and electric core II capacity control machine current's size through electric core controller I and electric core controller II, can break off automatically after being full of.
A power supply control method of a lithium capacitor comprises the following steps:
1) all instructions are sent by the BMS main controller, the slave controllers and the battery core controller are responsible for acquiring signals, screening and processing the signals, and the acquired signals are input into the main controller and are uniformly commanded by the main controller.
2) The battery core controller collects actual operation parameters of the battery core, when the parameters are abnormal, the main controller sends out instructions, corresponding measures are taken, the battery core controller is connected with the battery core in series, and the battery core group can be cut off in emergency, and an alarm instruction is sent out through the main controller.
3) The electric core controller can control the electric core discharge current size in real time, the main controller determines the discharge current size after calculating according to the feedback parameters of each module, and the instructions are transmitted to the electric core controller and then executed by the electric core controller.
4) BDU module group is battery package open circuit module, specially is battery package internal design, by its operation of main control unit control, provides the interface for BMS power management system's main power, includes:
the main circuit contactor of the system opens or cuts off the main circuit direct current.
And secondly, a pre-charging relay protects the high-voltage circuit from instantaneous large current impact during system power-on.
And the current sensor is used for measuring and calculating the capacity of the battery pack.
5) The main controller and each power control module use an internal CAN protocol, and the data link layer mainly refers to the CAN2.0B and the related regulation of SAE J1939-SAE standard, adopts a transmission rate of 250kbps, uses a 29-bit identifier of a CAN extended frame, and performs redefinition.
Preferably, the logic operation module of the main controller adopts a RAM read-write preset mode, an engineer writes a logic operation program, and the logic operation program is input into the RAM of the main controller after passing detection, and the RAM has anti-erasing protection measures.
Compared with the prior art, the invention has the beneficial effects that:
1) the power supply control system improves the working efficiency and prolongs the service life of equipment by connecting the main controller with each control module and automatically carrying out the fact of an optimal scheme through the arrangement and calculation of the main controller according to the data signals of each module;
2) through setting up multiunit electricity core controller, can the fact control electricity core discharge current size, main control unit is according to the data parameter of each module after the operation, decides the discharge current size, is carried out by electricity core controller control electricity core behind the electricity core controller with instruction signal transmission, and the access of electricity core controller has slowed down lithium electric capacity's discharge rate greatly, has increased lithium electric capacity discharge time, makes equipment duration longer.
Drawings
Fig. 1 is a schematic structural diagram of a power control system and a control method of a lithium capacitor according to the present invention;
in the figure: 10. a main controller; 11. an external controller; 12. a high voltage controller; 13. a motor; 14. a BDU; 15. a charger; 16. a slave controller II; 17. a cell controller II; 18. a battery core II; 19. a switch; 20. a battery core I; 21. a cell controller I; 22. a slave controller I; 23. an external interface; 24. an external meter.
Detailed Description
In order to facilitate understanding of those skilled in the art, the technical solution of the present invention is further specifically described below with reference to fig. 1.
A power control system and a control method of a lithium capacitor are disclosed, which comprises the following steps: the device comprises a main controller 10, an external controller 11, a high-voltage controller 12, a motor 13, a BDU14, a charger 15, a slave controller II 16, a cell controller II 17, a cell II 18, a switch 19, a cell I20, a cell controller I21, a slave controller I22, an external interface 23 and an external instrument 24, wherein the cell controller I21 and the cell controller II 17 are directly connected with the cell I20 and the cell II 18 in series, the switch 19 is arranged between the cell controller I21 and the cell controller II 17, the device can respectively control and monitor the discharge current of a single cell I20 or a cell II 18 in real time, data signals are transmitted to the slave controller I22 and the slave controller II 16 for screening and signal processing, signals collected by the slave controller I22 and the slave controller II 16 are input to the main controller 10 for unified command, and the main controller 10, the external controller 11, the high-voltage controller 12, the cell controller I21 and the cell controller II 17 are connected with the slave controller II 18 for unified command, The BDU14, the slave controller II 16, the slave controller I22, the external interface 23 and the external instrument 24 all adopt an internal CAN protocol to transmit data, and the master controller 10 receives data signals of all power supply control modules, processes the data signals, feeds the processed data signals back to all power supply modules, and outputs the signals to the external controller 11, the external instrument 24 and the external interface 23.
The high-voltage controller 12 and the BDU14 jointly form a battery protection module, so that in the charging and discharging process, a circuit can be protected from instantaneous large current impact during system electrification, and equipment damage caused by high voltage generated by overload is prevented.
The BDU14 provides an interface for the main power of the BMS power management system, the BDU14 receives a control signal output by the main controller 10 and controls the BDU14 to close or disconnect the main direct current so as to control the motor 13 to stop or start, the charger 15 charges the battery cell I20 and the battery cell II 18 through the BDU14, and the BDU14 measures and calculates the capacities of the battery cell I20 and the battery cell II 18 through the battery cell controller I21 and the battery cell controller II 17 to control the current of the charger 15, and can be automatically disconnected after being fully charged.
A power supply control method of a lithium capacitor comprises the following steps:
1) all instructions are sent by the BMS main controller, the slave controllers and the battery core controller are responsible for acquiring signals, screening and processing the signals, and the acquired signals are input into the main controller and are uniformly commanded by the main controller.
2) The battery core controller collects actual operation parameters of the battery core, when the parameters are abnormal, the main controller sends out instructions, corresponding measures are taken, the battery core controller is connected with the battery core in series, and the battery core group can be cut off in emergency, and an alarm instruction is sent out through the main controller.
3) The electric core controller can control the electric core discharge current size in real time, the main controller determines the discharge current size after calculating according to the feedback parameters of each module, and the instructions are transmitted to the electric core controller and then executed by the electric core controller.
4) BDU module group is battery package open circuit module, specially is battery package internal design, by its operation of main control unit control, provides the interface for BMS power management system's main power, includes:
the main circuit contactor of the system opens or cuts off the main circuit direct current.
And secondly, a pre-charging relay protects the high-voltage circuit from instantaneous large current impact during system power-on.
And the current sensor is used for measuring and calculating the capacity of the battery pack.
5) The main controller and each power control module use an internal CAN protocol, and the data link layer mainly refers to the CAN2.0B and the related regulation of SAE J1939-SAE standard, adopts a transmission rate of 250kbps, uses a 29-bit identifier of a CAN extended frame, and performs redefinition.
The main controller 10 logic operation module adopts RAM read-write preset mode, the engineer writes logic operation program, the program is inputted into the main controller RAM after passing the detection, and the RAM has anti-erasing protective measures.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (5)
1. A power control system and a control method of a lithium capacitor are disclosed, which comprises the following steps: the device comprises a main controller, an external controller, a high-voltage controller, a motor, a BDU (brain-based bus) controller, a charger, a secondary controller II, a cell II, a switch, a cell I, a cell controller I, a secondary controller I, an external interface and an external instrument, and is characterized in that the cell controller I and the cell controller II are directly connected with the cell I and the cell II in series, a switch is arranged between the cell controller I and the cell controller II and CAN respectively control and monitor the discharge current of a single cell I or cell II in real time, data signals are transmitted to the secondary controller I and the secondary controller II for screening and signal processing, signals collected by the secondary controller I and the secondary controller II are input into the main controller for unified command, and the main controller and the external controller, the high-voltage controller, the BDU, the secondary controller II, the secondary controller I, the external interface and the external instrument adopt an internal CAN protocol for data transmission, the main controller receives the data signals of the power supply control modules, processes the data, feeds the processed data back to the power supply modules, and outputs the signals to the external controller, the external instrument and the external interface.
2. The power control system and the power control method of the lithium capacitor as claimed in claim 1, wherein the high voltage controller and the BDU together form a battery protection module, which can protect a circuit from an instantaneous large current impact during system power-on during charging and discharging, and prevent a device from being damaged due to a high voltage generated by an overload.
3. The power control system and the control method of the lithium capacitor of claim 1, wherein the BDU provides an interface for main power of a BMS power management system, the BDU receives a control signal output by a main controller and controls the BDU to turn on or off main circuit direct current so as to control stopping or starting of a motor, the charger charges a cell i and a cell ii through the BDU, the BDU measures and calculates capacities of the cell i and the cell ii through the cell controller i and the cell controller ii to control the magnitude of the current of the charger, and the BDU can be automatically turned off after being fully charged.
4. The power control system and the control method of the lithium capacitor according to claim 1, wherein the power control method of the lithium capacitor comprises:
1) all instructions are sent by the BMS master controller, the slave controllers and the battery cell controllers are responsible for acquiring signals, screening and processing the signals, and the acquired signals are input into the master controller and are uniformly commanded by the master controller;
2) the cell controller collects actual operation parameters of the cell, when the parameters are abnormal, the main controller sends an instruction, corresponding measures are taken, the cell controller is connected with the cell in series, and in case of emergency, the cell group can be cut off, and an alarm instruction is sent out through the main controller;
3) the cell controller can control the magnitude of the cell discharge current in real time, the main controller determines the magnitude of the discharge current after calculating according to the feedback parameters of each module, and the command is transmitted to the cell controller and then executed by the cell controller;
4) BDU module group is battery package open circuit module, specially is battery package internal design, by its operation of main control unit control, provides the interface for BMS power management system's main power, includes:
a main circuit contactor of the system opens or cuts off main circuit direct current;
a pre-charging relay protects the high-voltage circuit from instantaneous large current impact when the system is powered on;
the current sensor is used for measuring and calculating the capacity of the battery pack;
5) the main controller and each power control module use an internal CAN protocol, and the data link layer mainly refers to the CAN2.0B and the related regulation of SAE J1939-SAE standard, adopts a transmission rate of 250kbps, uses a 29-bit identifier of a CAN extended frame, and performs redefinition.
5. The power control system and the power control method for the lithium capacitor according to claim 1, wherein the logic operation module of the main controller adopts a RAM read-write preset mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345620.5A CN114069782A (en) | 2021-11-15 | 2021-11-15 | Power supply control system and control method of lithium capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345620.5A CN114069782A (en) | 2021-11-15 | 2021-11-15 | Power supply control system and control method of lithium capacitor |
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| CN114069782A true CN114069782A (en) | 2022-02-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116190158A (en) * | 2023-04-25 | 2023-05-30 | 武汉嘉晨电子技术有限公司 | BDU fuse and control method |
| WO2024037382A1 (en) * | 2022-08-17 | 2024-02-22 | 华为技术有限公司 | Battery management method, apparatus, and system |
-
2021
- 2021-11-15 CN CN202111345620.5A patent/CN114069782A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024037382A1 (en) * | 2022-08-17 | 2024-02-22 | 华为技术有限公司 | Battery management method, apparatus, and system |
| CN116190158A (en) * | 2023-04-25 | 2023-05-30 | 武汉嘉晨电子技术有限公司 | BDU fuse and control method |
| CN116190158B (en) * | 2023-04-25 | 2023-07-18 | 武汉嘉晨电子技术有限公司 | BDU fuse and control method |
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Effective date of registration: 20240409 Address after: 276017 yindanzi village, Fuzhuang street, Luozhuang District, Linyi City, Shandong Province Applicant after: Shandong Shengyang Construction Machinery Co.,Ltd. Country or region after: China Address before: 276017 intersection of Longshan road and Yice Road, Fuzhuang office, Luozhuang District, Linyi City, Shandong Province (New Material Industrial Park, Luozhuang Economic Development Zone) Applicant before: Shandong Shengrong New Energy Technology Co.,Ltd. Country or region before: China |
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