CN110994055A - Charging and discharging system and control method - Google Patents
Charging and discharging system and control method Download PDFInfo
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- CN110994055A CN110994055A CN201911311379.7A CN201911311379A CN110994055A CN 110994055 A CN110994055 A CN 110994055A CN 201911311379 A CN201911311379 A CN 201911311379A CN 110994055 A CN110994055 A CN 110994055A
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000007599 discharging Methods 0.000 title claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 120
- 238000004891 communication Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000011112 process operation Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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
- H01M10/446—Initial charging measures
-
- 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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- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a charging and discharging system and a control method, wherein the control method of the charging and discharging system comprises the following steps: the upper computer generates a task instruction; the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction; and the one or more second chips execute the processing tasks according to the task types of the processing tasks. According to the control method of the charge and discharge system, the upper computer generates the processing tasks, the main control chip receives the processing tasks and then distributes the tasks to other control chips, and the other control chips control system hardware to execute the processing tasks, so that the technical problem that the charge and discharge system cannot be accurately controlled in the prior art is solved, the propelling difficulty of battery charge and discharge is reduced, and the effects of accurately controlling the charge and discharge system and simplifying the operation of workers are achieved.
Description
Technical Field
The embodiment of the invention relates to a charging and discharging technology, in particular to a charging and discharging system and a control method.
Background
The polar aprotic solvent used as the lithium ion battery inevitably reacts on the interface of the electrode and the electrolyte in the first charge and discharge process after the lithium ion battery is sealed, and an SEI film covering the surface of the electrode is formed. Part of lithium ions are consumed by the formation of the SEI film, so that the first charge-discharge irreversible capacity is increased, and the charge-discharge efficiency of the electrode material is reduced; on the other hand, the SEI film has organic solvent insolubility and can stably exist in an organic electrolyte solution, and solvent molecules cannot pass through the passivation film, so that co-embedding of the solvent molecules can be effectively prevented, damage to an electrode material due to the co-embedding of the solvent molecules is avoided, and the cycle performance and the service life of the electrode are greatly improved. The quality of the formed SEI film determines the quality of the SEI film, and directly influences the electrochemical properties of the battery, such as cycle life, stability, self-discharge property, safety and the like.
When the amount of generated batteries in the charge/discharge system is large, the resulting pressure is large, and it is often necessary to operate several tens of power cabinets at the same time. The control system in each power cabinet can not accurately control the formation process of each battery, and is difficult to record or give an alarm by mistake, thereby bringing high operation and management difficulty for workers.
Disclosure of Invention
The invention provides a charge-discharge system and a control method, which are used for realizing the effects of accurately controlling the charge-discharge system and simplifying the operation of a worker on the charge-discharge system.
In a first aspect, an embodiment of the present invention provides a method for controlling a charging and discharging system, where the charging and discharging system includes: host computer, first chip, one or more second chip include:
the upper computer generates a task instruction;
the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction;
and the one or more second chips execute the processing tasks according to the task types of the processing tasks.
Optionally, before the upper computer generates the processing task, the method further includes:
the first chip is connected with the upper computer in a communication mode.
Optionally, the processing task category includes: a first task, a second task, a third task, and a fourth task.
Optionally, the first task includes a first server thread task and a second server task.
Optionally, if the task is the first server thread task, the task is executed
The first chip receives a task instruction transmitted by the upper computer;
and the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction.
Optionally, if the task is a second server thread task, the task is executed
The first chip uploads the step data to the upper computer;
and the upper computer receives and stores the step data.
The first chip controls the one or more second chips to perform the processing task.
Optionally, if the processing task is the second task, the processing task is the second task
The first chip is in communication connection with the upper computer;
the first chip creates a kernel mailbox and a thread;
maintaining communication of the first chip to process the other kinds of processing tasks.
Optionally, the obtaining the processing task and determining the category to which the processing task belongs includes: if the processing task is the third task, then
The first chip establishes UDP connection and sends UDP real-time data to the upper computer;
and the upper computer updates UDP real-time data.
Optionally, the obtaining the processing task and determining the category to which the processing task belongs includes: if the processing task is the fourth task, then
The upper computer transmits the task instruction to the first chip;
the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction;
the one or more second chips execute the processing tasks according to the task types of the processing tasks;
the first chip establishes UDP connection and sends UDP real-time data to the upper computer;
and the upper computer updates UDP real-time data.
In a second aspect, an embodiment of the present invention further provides a charging and discharging system, where the system includes:
the upper computer is used for generating task instructions;
the first chip is used for receiving the task instruction and generating a processing task according to a preset rule and the task instruction;
one or more second chips for the one or more second chips to execute the processing task according to a task category of the processing task.
The embodiment of the invention discloses a charging and discharging system and a control method, wherein the control method of the charging and discharging system comprises the following steps: the upper computer generates a task instruction; the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction; and the one or more second chips execute the processing tasks according to the task types of the processing tasks. According to the control method of the charge and discharge system, the upper computer generates the processing tasks, the main control chip receives the processing tasks and then distributes the tasks to other control chips, and the other control chips control system hardware to execute the processing tasks, so that the technical problem that the charge and discharge system cannot be accurately controlled in the prior art is solved, the propelling difficulty of battery charge and discharge is reduced, and the effects of accurately controlling the charge and discharge system and simplifying the operation of workers are achieved.
Drawings
Fig. 1 is a flowchart of a control method of a charging and discharging system according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a charging and discharging system according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a charging and discharging system 300 according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. A process may be terminated when its operations are completed, but may have additional steps not included in the figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, a first chip may be referred to as a second chip, and similarly, a second chip may be referred to as a first chip, without departing from the scope of the present application. The first chip and the second chip are both chips, but they are not the same chip. The terms "first", "second", etc. are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example one
Fig. 1 is a flowchart of a control method for a charging and discharging system according to an embodiment of the present invention, where the embodiment is applicable to a situation where an upper computer generates a processing task, and a main control chip receives the processing task and controls other chips to process the charging and discharging task, and specifically includes the following steps:
and step 100, the upper computer generates a task instruction.
In this embodiment, the upper computer generates a task instruction according to the number of batteries accessed by the current charging and discharging system and the battery state, and in this embodiment, the task instruction includes, but is not limited to, charging, discharging, resting, cycling, and the like. In this embodiment, the upper computer is preferably a computer. And the first chip analyzes the task instruction after receiving the task instruction and transmits the task instruction to other control chips corresponding to the task instruction so as to control the other control chips to execute the task instruction. Illustratively, the upper computer generates a task instruction for performing formation operation on the battery to be charged in the station N, and after receiving the instruction, the first chip determines that the process operation of the station N is controlled by the nth control chip, that is, the task instruction is transmitted to the nth control chip, and the nth control chip sends a control signal to control the hardware system to perform formation operation on the battery to be charged in the station N. And when the other control chips execute the task instruction, transmitting the task data of the task instruction to the first chip in real time. In the present embodiment, the task data includes, but is not limited to, task completion time, task completion conditions, task operators, and the like.
And step 110, the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction.
In this embodiment, the first chip is a main control chip in the charging and discharging system, and is configured to receive a task instruction transmitted from an upper node, generate a processing task, and transmit the processing task to another chip to perform charging and discharging processing on an external battery to be charged. In this embodiment, the upper computer is preferably a computer. Before the charging and discharging system starts to work, the first chip is in communication connection with the upper computer in a wireless or wired communication mode. In the embodiment, the first chip type number is preferably an STM32H743IIT6 chip, the dominant frequency of the chip is up to 400Mhz, and the accuracy requirement of most embedded devices can be easily met. The chip is provided with 2MB FLASH and 1MRAM, 128MB NAND FLASH and 32MB serial FLASH and 32MB SDRAM are carried on the periphery, more task stack space can be allocated on the occasion of carrying a real-time operating system, and the performance of the system thread is maximized. The first chip receives the task instruction transmitted by the upper computer, generates a processing task according to a preset rule and distributes the processing task to each other control chip. In this embodiment, the preset rule may be preset by a worker inside the first chip, and the task types of the processing tasks include: charge, discharge, rest, and cycle. In this embodiment, the charging is to perform a charging process on the external battery, and generally uses a preset voltage or a preset current to charge the external battery. The discharge is to discharge the external battery, and generally, the discharge voltage or discharge current is controlled. The external battery is put on hold, i.e., the process is suspended, and is put in a cooling state. And the circulation is to carry out circulation charging and discharging operation on the external battery so as to test whether the external battery meets the preset factory requirements.
And step 120, the one or more second chips execute the processing task according to the task type of the processing task.
In this embodiment, the second chip is a control chip for controlling each process step flow, in this embodiment, the model of the second chip is also preferably an STM32H743IIT6 chip, and the second chip can send a control signal to control system hardware to execute a processing task. And the processing task generated by the upper computer is transmitted to the first chip, and the first chip analyzes the processing task after receiving the processing task and transmits the processing task to other control chips corresponding to the processing task so as to control the other control chips to execute the processing task. Illustratively, the upper computer generates a processing task for performing formation operation on the battery to be charged in the station N, after the first chip receives the instruction, the first chip determines that the processing operation is the process operation for controlling the station N by the nth control chip, that is, the processing task is transmitted to the nth control chip, and the nth control chip sends a control signal to control the hardware system to perform formation operation on the battery to be charged in the station N. And when the other control chips execute the processing task, transmitting the task data of the processing task to the first chip in real time. In the present embodiment, the task data includes, but is not limited to, task completion time, task completion conditions, task operators, and the like.
The embodiment of the invention provides a control method of a charge and discharge system, which comprises the following steps: receiving a processing task from an upper computer; confirming the task type of the processing task according to a preset rule; and controlling one or more second chips to execute the processing task according to the task type. According to the control method of the charge and discharge system, the upper computer generates the processing tasks, the main control chip receives the processing tasks and then distributes the tasks to other control chips, and the other control chips control system hardware to execute the processing tasks, so that the technical problem that the charge and discharge system cannot be accurately controlled in the prior art is solved, the propelling difficulty of battery charge and discharge is reduced, and the effects of accurately controlling the charge and discharge system and simplifying the operation of workers are achieved.
Example two
Fig. 2 is a flowchart of a control method of a charging and discharging system according to a second embodiment of the present invention, where this embodiment is a more detailed description of an identification process based on the second embodiment, and this embodiment is applicable to a case where a main control chip controls other chips to process charging and discharging tasks, and specifically includes the following steps:
and 200, connecting the first chip with the upper computer in a communication manner.
In this embodiment, before the upper computer generates the processing task, the system is initialized first, and the upper computer is in communication connection with the first chip.
And step 210, the upper computer generates a task instruction.
In this embodiment, the processing task may be divided into a first task, a second task, a third task, and a fourth task according to a preset rule, and the processing operations executed by each task are different.
In an alternative embodiment, if the task is a first server thread task, the first chip receives a task instruction transmitted by the upper computer; and the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction. If the task is a second server thread task, the first chip uploads the work step data to the upper computer; and the upper computer receives and stores the step data.
In an alternative embodiment, the first task is a TCPecho task, and includes a first server thread task and a second server thread task, the first server thread is a TCPecho (10001 port), the port is used for executing control instructions and devices, channels, step information, and the like which are dominant by the upper computer, and the priority is high. The second server thread is TCPecho (10002 port), and the port is used for executing the step recording instructions which are dominated by the master control board, comprises a plurality of step recording analysis instructions and uploads the step recording analysis instructions to the upper computer for storage.
In an alternative embodiment, if the processing task is a second task, the first chip maintains communication connection with the upper computer; the first chip creates a kernel mailbox and a thread; maintaining communication of the first chip to process the other kinds of processing tasks.
In an alternative embodiment, the second task uses a Tcpip thread, which is a kernel thread, with the highest priority, involving the LWIP layers. The first chip internally comprises a network card receiving thread processing, a kernel mailbox message processing, a kernel timeout processing, data packet unpacking of each layer and the like, and maintains the communication connection between the first chip and the upper computer so as to ensure the normal processing of other processing tasks.
In an alternative embodiment, if the processing task is a third task, the first chip creates a UDP connection and sends UDP real-time data to the upper computer; and the upper computer updates UDP real-time data.
In an alternative embodiment, the UDP real-time data is received by the upper computer and then updated on the display panel in real time, so that the staff can conveniently observe the record.
In an alternative embodiment, if the processing task is a fourth task, the upper computer transmits the task instruction to the first chip; the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction; the one or more second chips execute the processing tasks according to the task types of the processing tasks; the first chip establishes UDP connection and sends UDP real-time data to the upper computer; and the upper computer updates UDP real-time data.
In an alternative embodiment, the fourth task is mainly a battery processing task, and includes real-time monitoring of a battery voltage and current value, updating of a real-time state (charging, discharging, resting, and the like) of a battery of the upper computer, judgment of a charge-discharge cutoff condition, step switching logic, step cycle logic implementation, real-time issuing of instructions such as start, pause, skip, charge-discharge instructions, and the like, and the upper computer also receives UDP real-time data and updates the UDP real-time data on the display panel in real time.
And step 230, the one or more second chips execute the processing task according to the task type of the processing task.
The second embodiment of the invention provides a charge-discharge system and a control method, wherein the charge-discharge system comprises: the first chip is connected with the upper computer in a communication mode; the upper computer generates a task instruction; the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction, and the processing task type comprises the following steps: a first task, a second task, a third task and a fourth task; and the one or more second chips execute the processing tasks according to the task types of the processing tasks. According to the control method of the charge and discharge system, the upper computer generates the processing tasks, the main control chip receives the processing tasks and then distributes the tasks to other control chips, and the other control chips control system hardware to execute the processing tasks, so that the technical problem that the charge and discharge system cannot be accurately controlled in the prior art is solved, the propelling difficulty of battery charge and discharge is reduced, and the effects of accurately controlling the charge and discharge system and simplifying the operation of workers are achieved.
EXAMPLE III
The charge and discharge system provided by the third embodiment of the invention can execute the charge and discharge system control method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. Fig. 3 is a schematic structural diagram of a charging and discharging system 300 according to an embodiment of the present invention. Referring to fig. 3, a charge and discharge system 300 according to an embodiment of the present invention may specifically include:
the upper computer 310 is used for generating task instructions;
the first chip 320 is configured to receive the task instruction and generate a processing task according to a preset rule and the task instruction;
one or more second chips 300 for the one or more second chips to execute the processing task according to a task category of the processing task.
An embodiment of the present invention provides a charging and discharging system, including: the upper computer is used for generating task instructions; the first chip is used for receiving the task instruction and generating a processing task according to a preset rule and the task instruction; one or more second chips for the one or more second chips to execute the processing task according to a task category of the processing task. According to the control method of the charge and discharge system, the upper computer generates the processing tasks, the main control chip receives the processing tasks and then distributes the tasks to other control chips, and the other control chips control system hardware to execute the processing tasks, so that the technical problem that the charge and discharge system cannot be accurately controlled in the prior art is solved, the propelling difficulty of battery charge and discharge is reduced, and the effects of accurately controlling the charge and discharge system and simplifying the operation of workers are achieved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A charge-discharge system control method, the charge-discharge system comprising: host computer, first chip, one or more second chip, its characterized in that includes:
the upper computer generates a task instruction;
the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction;
and the one or more second chips execute the processing tasks according to the task types of the processing tasks.
2. The charging and discharging system control method according to claim 1, wherein before the upper computer generates the task instruction, the method further comprises:
the first chip is connected with the upper computer in a communication mode.
3. The charging and discharging system control method according to claim 1, wherein the task category of the processing task includes: a first task, a second task, a third task, and a fourth task.
4. The charging and discharging system control method according to claim 3, wherein the first task includes a first server thread task and a second server task.
5. The charging and discharging system control method according to claim 4, wherein if it is the first server thread task, then it is the first server thread task
The first chip receives a task instruction transmitted by the upper computer;
and the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction.
6. The charging and discharging system control method according to claim 4, wherein if it is a second server thread task, it is a second server thread task
The first chip uploads the step data to the upper computer;
and the upper computer receives and stores the step data.
7. The charging/discharging system control method according to claim 3, wherein if the processing task is the second task, the processing task is the second task
The first chip is in communication connection with the upper computer;
the first chip creates a kernel mailbox and a thread;
maintaining communication of the first chip to process the other kinds of processing tasks.
8. The charging and discharging system control method according to claim 3, wherein the obtaining of the processing task and the determining of the category to which the processing task belongs comprises: if the processing task is the third task, then
The first chip establishes UDP connection and sends UDP real-time data to the upper computer;
and the upper computer updates UDP real-time data.
9. The charging and discharging system control method according to claim 3, wherein the obtaining of the processing task and the determining of the category to which the processing task belongs comprises: if the processing task is the fourth task, then
The upper computer transmits the task instruction to the first chip;
the first chip receives the task instruction and generates a processing task according to a preset rule and the task instruction;
the one or more second chips execute the processing tasks according to the task types of the processing tasks;
the first chip establishes UDP connection and sends UDP real-time data to the upper computer;
and the upper computer updates UDP real-time data.
10. A charging and discharging system control system, comprising:
the upper computer is used for generating task instructions;
the first chip is used for receiving the task instruction and generating a processing task according to a preset rule and the task instruction;
one or more second chips for the one or more second chips to execute the processing task according to a task category of the processing task.
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| CN201911311379.7A CN110994055A (en) | 2019-12-18 | 2019-12-18 | Charging and discharging system and control method |
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| CN208689144U (en) * | 2018-06-27 | 2019-04-02 | 广东福德电子有限公司 | A kind of battery charging and discharging test macro based on middle-position machine control |
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- 2019-12-18 CN CN201911311379.7A patent/CN110994055A/en active Pending
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| CN208689144U (en) * | 2018-06-27 | 2019-04-02 | 广东福德电子有限公司 | A kind of battery charging and discharging test macro based on middle-position machine control |
| CN110518676A (en) * | 2019-10-24 | 2019-11-29 | 浙江纽联科技有限公司 | A kind of intelligent power management system applying to charging and discharging lithium battery control |
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| Title |
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| 刘泰廷: "母线式蓄电池化成系统的通信软件设计", 《中国优秀硕士学位论文全文数据库》 * |
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