CN112201865A - Automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying fault reason based on PLC - Google Patents
Automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying fault reason based on PLC Download PDFInfo
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- CN112201865A CN112201865A CN202011041747.3A CN202011041747A CN112201865A CN 112201865 A CN112201865 A CN 112201865A CN 202011041747 A CN202011041747 A CN 202011041747A CN 112201865 A CN112201865 A CN 112201865A
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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
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The design is an automatic intelligent lithium battery which can arbitrarily control charging and discharging time based on PLC and can display fault reasons, and the automatic intelligent lithium battery is composed of a lithium battery module, a lithium battery BMS, a DC-DC power module, a PLC controller, a charging relay, a discharging relay, a ship-shaped switch, a wall-penetrating type connector, a PG waterproof connector, an LED indicating lamp and the like. The program is compiled through the special ladder diagram of the PLC, so that the program is simple, convenient and reliable, even non-professional personnel can compile the program under simple training, and the lithium battery can be subjected to timed charging and discharging management according to own intention.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to an automatic intelligent lithium battery which can arbitrarily control charging and discharging time and can display fault reasons based on a PLC.
Background
Since Sony successfully developed the first commercial lithium ion battery in 1992, lithium batteries have been widely used in portable electronic products due to their high energy ratio, long life, high platform voltage, and environmental friendliness. With the development of microelectronic technology, miniaturized devices are increasing day by day, in recent years, market share in the field of energy storage batteries is also increasing year by year, meanwhile, a very high requirement is provided for a power supply, lithium batteries enter a large-scale practical stage, and with the large-scale application of the lithium batteries in various environments, requirements on functionality and safety of the lithium batteries are also increasing, for example, one device is enabled to automatically operate according to set time and automatically stop after operating for a certain time. It is well known that more than 90% of lithium battery explosion accidents occur at the end of charging, because the lithium battery still continues to charge when fully charged, if the charging protection function of the BMS fails, the lithium battery exceeds the upper limit safety voltage, the lithium battery has the danger of explosion, how to automatically charge the lithium battery regularly, and the charger is automatically disconnected in time when fully charged.
In addition, the battery cannot be normally charged or discharged in the using process, and the customer is not a professional person and cannot judge where the reason appears, so that the battery needs to be sent back to a manufacturer or sent to the manufacturer for processing, and if the battery cannot be sent back or is too far away from the manufacturer, the maintenance cost is very high.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic intelligent lithium battery which can arbitrarily control the charging and discharging time based on a PLC and can display the failure reason, and the battery pack can be charged and discharged at any time point, any duration and any interval time according to a programmed program, such as timed discharging, timed discharging stopping, timed charging stopping and the like. When the battery fails, the position of a failure point of the battery can be prompted through the corresponding alarm indicator lamp, and technicians of a manufacturer can guide a client to conduct the next step of processing conveniently.
In order to achieve the purpose, the invention adopts the following technical scheme:
the design is an automatic intelligent lithium battery which can arbitrarily control charging and discharging time based on PLC and can display fault reasons, and the automatic intelligent lithium battery is composed of a lithium battery module, a lithium battery BMS, a DC-DC power module, a PLC controller, a charging relay, a discharging relay, a ship-shaped switch, a wall-penetrating type connector, a PG waterproof connector, an LED indicating lamp and the like. The lithium battery module passes through lithium battery BMS, links to each other with charging, discharge relay, is qualified for the next round of competitions through PG water joint, constitutes the charging, the functional part that discharges of lithium cell jointly, wherein lithium battery BMS controls overcharge, overdischarge, overflows, the temperature protection of lithium battery module. The DC-DC power supply module is respectively connected with the lithium battery BMS and the PLC, the DC-DC power supply provides stable working voltage for the PLC, the input quantity end of the PLC is connected with the ship switch and the MOS tube potential output point on the lithium battery BMS, the output quantity end of the PLC is respectively connected with the charging and discharging relay and the LED indicating lamp, and the charging and discharging time and the LED indicating lamp of the battery pack are controlled. The wall-penetrating type connector is connected with a communication interface of the PLC and is responsible for writing programs into the PLC to realize charging and discharging management control at different time.
The invention has the beneficial effects that: compared with the traditional lithium battery, the traditional lithium battery can only manually control the charging and discharging start and stop time, and the automation degree of the lithium battery is lower. According to the invention, by writing a programmed program into the PLC, the automatic timed discharge, timed discharge stop, timed charge and timed charge stop of the lithium battery can be realized, or the discharge is carried out in different time periods, the charge is carried out in different time periods, and all working time of the charge and discharge can be set by the program, so that the automation degree of the lithium battery equipment is greatly improved, the lithium battery can be fully charged and the charge can be stopped in time by the timed charge function, and the potential safety hazard caused by the overcharge of the lithium battery module when the protection function of the lithium battery BMS fails is prevented. In addition, the program is compiled through the special ladder diagram of the PLC, so that the method is simple, convenient and reliable, even non-professional personnel can compile the program under simple training, and the lithium battery can be subjected to timed charging and discharging management according to own intention.
In addition, if the battery runs into the situation of incapable normal work in the use process, the fault point of the battery can be accurately identified through the LED fault indicating lamp, the problem occurs inside the battery, or the problem occurs in connection of an external battery, so that a user can find the problem at the first time conveniently, and the problem is solved.
Drawings
The invention is further described with reference to the following figures and detailed description.
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic external view of the present invention;
FIG. 3 is a flowchart of the present invention.
In FIG. 1; 1. 48V100Ah lithium battery module, 2, 48V100A lithium battery BMS, 3, FR-FX3U Mitsubishi PLC controller, 4, DC48V-DC24V power module, 5, 50A charging relay, 6, 100A discharging relay, 7, ship type switch, 8, through-the-wall connector, 9, charging waterproof PG connects, 10, discharging waterproof PG connects, 11, charging MOS pipe potential point, 12, discharging MOS pipe potential point, 13, charging failure LED pilot lamp, 14, discharging failure LED pilot lamp.
Detailed Description
The invention will be further described with reference to the following figures 1 to 3 and specific examples:
1. referring to fig. 1, an internal structure of an automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying failure reasons based on a PLC is composed of a 48V100Ah lithium battery module 1, a 48V100A lithium battery BMS 2, an FR-FX3U mitsubishi PLC controller 3, a DC48V-DC24V power module 4, a 50A charging relay 5 and a 100A discharging relay 6.
2. Referring to fig. 1, a 48V100Ah lithium battery module 1 is connected with a 48V100A lithium battery BMS 2 to supply power to a DC48V-DC24V power module 4 to provide 48V working voltage, the DC48V-DC24V power module 4 is connected with an FR-FX3U mitsubishi PLC controller 3 to provide working voltage to the FR-FX3U mitsubishi PLC controller 3 by converting 48V to 24V, the input of the FR-FX3U mitsubishi PLC controller 3X 2 is connected with a charging MOS tube potential point 11, the input of the FR-FX3U mitsubishi PLC controller 3X 3 is connected with a discharging MOS tube potential point 12, the output of the FR-FX3U mitsubishi PLC controller 3Y 1 is connected with a control end of a 50 charging relay 5 to control on-off of the 50A charging relay 5, the output of the FR-FX3U mitsubishi PLC 3Y2 is connected with a discharging relay control end of a 100A to control end to control on-off the 100A discharging relay 6, the contact input end of the 50A charging relay 5 is connected with the 48V100A lithium battery BMS 2C-output to control the charging of the 48V100Ah lithium battery module 1, and the 100A discharging relay 6 is connected with the 48V100A lithium battery BMS 2P-output to control the discharging of the 48V100Ah lithium battery module 1.
3. Referring to fig. 2, the automatic intelligent lithium battery external structure capable of arbitrarily controlling charging and discharging time based on the PLC and displaying the cause of a fault is composed of a ship-shaped switch 7, a wall-through type connector 8, a charging waterproof PG joint 9, a discharging waterproof PG joint 10, a charging fault LED indicator lamp 13, and a 1 discharging fault LED indicator lamp 14.
4. Referring to the attached drawings 1 and 2, an input point of an FR-FX3U Mitsubishi PLC 3X 1 is connected with a ship-shaped switch 7, the ship-shaped switch 7 controls the working state of an input point of an FR-FX3U Mitsubishi PLC 3X 1, an output point of the FR-FX3U Mitsubishi PLC 3Y 3 is connected with a charging fault LED indicator 13, an output point of the FR-FX3U Mitsubishi PLC 3Y 4 is connected with a discharging fault LED indicator 14, a wall-through connector 8 is connected with an RS485 communication interface of the FR-FX3U Mitsubishi PLC 3, the RS485 communication interface controls the program writing of the FR-FX3U Mitsubishi PLC 3, an output end of a contact of a 50A charging relay 5 is connected with a charging waterproof PG connector 9 to serve as a charging negative of a lithium battery, an output end of a 100A discharging relay 6 contact is connected with a discharging waterproof PG connector 10 to serve as a discharging negative of the lithium battery, and a 48V100Ah lithium battery module, the 48V100Ah lithium battery module 1 is connected to the discharging waterproof PG tab 10 as the charging + of the lithium battery.
5. Referring to fig. 1 and 2, when the ship switch 7 is turned off, the input quantity X1 of the FR-FX3U mitsubishi PLC controller 3 is set to 0, the output quantities Y1 and Y2 of the FR-FX3U mitsubishi PLC controller 3 are set to 0, the 50A charging relays 5 and the 100A discharging relays 6 are in an off state, and the lithium battery has no output; when the boat switch 7 is closed, the input quantity X1 of the FR-FX3U Mitsubishi PLC controller 3 is set to 1, at this time, if the voltage of the 48V100Ah lithium battery module 1 is normal, and the function of the 48V100A lithium battery BMS 2 is normal, the charging MOS tube potential point 11 and the discharging MOS tube potential point 12 output high levels, the input quantities X2 and X3 of the FR-FX3U Mitsubishi PLC controller 3 are set to 1, the input quantities Y3 and Y4 of the FR-FX3U Mitsubishi PLC controller 3 are set to 0, and the charging fault LED indicator lamp 13 and the discharging fault LED indicator lamp 14 are extinguished. The timer 1 starts to work, when the set value is reached, the 100A discharging relay 6 is closed, the lithium battery starts to discharge, meanwhile, the timer 2 starts to work, when the set value is reached, the 100A discharging relay 6 is disconnected, the lithium battery stops discharging, meanwhile, the timer 3 starts to work, when the set value is reached, the 50A charging relay 6 is closed, the lithium battery starts to charge, meanwhile, the timer 4 starts to work, when the set value is reached, the 50A charging relay 6 is disconnected, and the lithium battery stops to charge.
5. Referring to fig. 1 and 2, if the voltage of the 48V100Ah lithium battery module 1 is too high or the 48V100A lithium battery BMS 2 charging control circuit fails, the charging MOS transistor potential point 11 outputs a low level, the FR-FX3U mitsubishi PLC controller 3 inputs X2 to set 0, and at the same time, the FR-FX3U mitsubishi PLC controller 3 inputs Y3 to set 1, and the charging failure LED indicator 13 is turned on; if the voltage of the 48V100Ah lithium battery module 1 is too low or the 48V100A lithium battery BMS 2 discharge control loop fails, the discharge MOS tube potential point 12 outputs a low level, the input quantity X3 of the FR-FX3U Mitsubishi PLC controller 3 is set to 0, the input quantity Y4 of the FR-FX3U Mitsubishi PLC controller 3 is set to 1, and the discharge failure LED indicator lamp 14 is turned on. The position of a battery fault point can be judged through the lighting condition of the fault LED indicator lamp, and the battery fault point can be checked in a targeted mode.
It should be understood that the above-described embodiments are merely preferred embodiments of the present invention, but that various changes in form and details may be made therein without departing from the scope of the appended claims, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (3)
1. An automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time based on PLC and displaying failure reasons is characterized by comprising a 48V100Ah lithium battery module (1), a 48V100A lithium battery BMS 2, an FR-FX3U Mitsubishi PLC controller 3, a DC48V-DC24V power module 4, a 50A charging relay 5, a 100A discharging relay 6, a ship-shaped switch 7, a wall-through connector 8, a charging waterproof PG connector 9, a discharging waterproof PG connector 10, a charging failure LED indicator lamp 13 and a discharging failure LED indicator lamp 14; an output point of an FR-FX3U Mitsubishi PLC Y1 is connected with a control end of a 50A charging relay to control the on-off of the 50A charging relay, an output point of an FR-FX3U Mitsubishi PLC 3Y2 is connected with a control end of a 100A discharging relay to control the on-off of a 100A discharging relay 6, an output point of an FR-FX3U Mitsubishi PLC Y3 is connected with a charging fault LED indicator lamp to control the lighting of the charging fault LED indicator lamp, and an output point of an FR-FX3U Mitsubishi PLC Y4 is connected with a discharging fault LED indicator lamp to control the lighting of the discharging fault LED indicator lamp.
2. The automatic intelligent lithium battery of claim 1, which can arbitrarily control the charging and discharging time based on PLC and display the cause of failure, it is characterized in that the state quantity of the input quantity X1 of the FR-FX3U Mitsubishi PLC controller is changed by switching on and off a ship-shaped switch, further realizes the control of the on-off of the 50A charging relay and the 100A discharging relay through the change of the output quantities Y1 and Y2 of the FR-FX3U Mitsubishi PLC controller, thereby controlling the charging and discharging time of the lithium battery, realizing the automatic intelligent work of the lithium battery, changing the state quantities of X2 and X3 input quantities of the FR-FX3U Mitsubishi PLC controller through the point position change of a charging MOS tube potential point and a discharging MOS tube potential point, and further, the control of the charging fault LED indicator lamp and the discharging fault LED indicator lamp is realized through the change of the output quantities Y3 and Y4 of the FR-FX3U Mitsubishi PLC controller.
3. The automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying fault causes based on the PLC of claim 1, wherein when the ship switch 7 is turned off, the FR-FX3U Mitsubishi PLC controller 3 inputs X1 to 0, the FR-FX3U Mitsubishi PLC controller 3 outputs Y1, Y2 to 0, the 50A charging relay 5 and the 100A discharging relay 6 are in an off state, and the lithium battery has no output; when the boat switch 7 is closed, the input quantity X1 of FR-FX3U Mitsubishi PLC controller 3 is set to 1, at this time, if the voltage of the 48V100Ah lithium battery module 1 is normal, and the function of the 48V100A lithium battery BMS 2 is normal, the potential point 11 of the charging MOS tube and the potential point 12 of the discharging MOS tube output high level, the input quantities X2 and X3 of FR-FX3U Mitsubishi PLC controller 3 are set to 1, the input quantities Y3 and Y4 of FR-FX3U Mitsubishi PLC controller 3 are set to 0, the charging failure LED indicator lamp 13 and the discharging failure LED indicator lamp 14 are extinguished, the timer 1 starts to operate, the 100A discharging relay 6 is closed when the set value is reached, the lithium battery starts to discharge, the timer 2 starts to operate, the 100A discharging relay 6 is opened when the set value is reached, the lithium battery stops discharging, the timer 3 starts to operate, the 50A charging relay 6 is closed when the set value is reached, the, when the set value is reached, the 50A charging relay 6 is turned off, and the lithium battery stops charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041747.3A CN112201865A (en) | 2020-09-28 | 2020-09-28 | Automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying fault reason based on PLC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041747.3A CN112201865A (en) | 2020-09-28 | 2020-09-28 | Automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying fault reason based on PLC |
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| CN112201865A true CN112201865A (en) | 2021-01-08 |
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| CN202011041747.3A Pending CN112201865A (en) | 2020-09-28 | 2020-09-28 | Automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying fault reason based on PLC |
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Application publication date: 20210108 |