CN106972618A - A kind of remote controlled type Flameproof and intrinsically safe uninterruption power source - Google Patents
A kind of remote controlled type Flameproof and intrinsically safe uninterruption power source Download PDFInfo
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- CN106972618A CN106972618A CN201710248793.2A CN201710248793A CN106972618A CN 106972618 A CN106972618 A CN 106972618A CN 201710248793 A CN201710248793 A CN 201710248793A CN 106972618 A CN106972618 A CN 106972618A
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- management system
- battery management
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- battery
- daughter board
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 37
- 229910052744 lithium Inorganic materials 0.000 claims description 37
- 230000005611 electricity Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 7
- 230000000875 corresponding Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims description 2
- 230000000087 stabilizing Effects 0.000 claims description 2
- 210000003800 Pharynx Anatomy 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000004927 fusion Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 239000003245 coal Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000000977 initiatory Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- H—ELECTRICITY
- H01—BASIC 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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—BASIC 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
-
- H—ELECTRICITY
- H01—BASIC 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—BASIC 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
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
- H02J9/065—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads for lighting purposes
-
- H—ELECTRICITY
- H01—BASIC 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—BASIC ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
-
- 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
Abstract
The present invention relates to a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source, using multiple battery pack parallel structures, internal battery pack often saves cell series connection.When colliery externally fed is powered off, provided for a long time for underground equipment, powerful uninterrupted power supply.Battery management system mainboard is connected by CAN with each battery management system daughter board, realizes centerized fusion.The battery information that mainboard is uploaded according to daughter board controls electric voltage equalization between electric voltage equalization between battery pack, daughter board control cell so that pressure difference control is in safe range between battery.Meanwhile, daughter board will gather battery pack current and temperature information, when there are the abnormalities such as excessively stream, excess temperature, disconnect charge switch or discharge switch is protected.In addition, battery data is uploaded to host computer on well, the running status of each battery pack of host computer remote monitoring by mainboard by underground ethernet ring network, and the relevant parameter of power supply unit is set, ensures that uninterruption power source is safely and steadily run.
Description
Technical field
The present invention relates to a kind of uninterruption power source, particularly a kind of remote controlled type flame proof used suitable for underground coal mine
Intrinsically safe uninterruption power source.
Background technology
With the development and the progress of mining equiment technology of coal industry, coal mine equipment automation, intelligence degree are not
It is disconnected to improve.Yet with underground coal mine inclement condition, the brown-outs caused by disaster and accident happen occasionally, to ensure coal
The normal operation of the facilities such as ore deposit underground communica tion, monitoring, illumination, blower fan, urgent danger prevention, in addition to needing power plant and supplying power with double circuit, also
Back-up source is needed to use to be powered.
The current research to underground coal mine back-up source is mainly single group battery pack and powered for equipment, and in actual use
There is problems with：1) back-up source battery capacity is small, and power-on time is short, externally fed power-off after, by lithium battery group without
Method is provided powers for a long time；2) power output is small, it is impossible to powered simultaneously for many large power-consuming equipments；3) underground coal mine standby
Power supply deployment site is disperseed, it is impossible to carry out unified monitoring management.To solve problem above, by the way of increase number of batteries,
Increase the capacity and power output of backup power supply.But with the increase of number of batteries, also will to battery management system and
Electric voltage equalization technology proposes new requirement.A kind of parallel uninterruption power source of present invention design, only load equipment is not carried
For high-power, prolonged backup, also voltage battery pack is carried out balanced.The controllable intrinsic safety output of present invention design in addition
And online remote control function, the long-range unified management to battery pack is realized, ensures that uninterruption power source can be steady safely
Fixed work, has good feasibility and wide application prospect in colliery industry.
The content of the invention
A kind of remote controlled type Flameproof and intrinsically safe used it is an object of the invention to provide a kind of suitable underground coal mine is uninterrupted
Power supply, to realize during the externally fed power-off of colliery, when can provide long by uninterruption power source for underground equipment
Between, powerful uninterrupted power supply.Uninterruption power source battery pack parallel connection is discharged there is provided 127V Alternating Current Power Supplies and
12V intrinsic safety direct current supplys, pass through electric voltage equalization, the control of battery management system daughter board between battery management system mainboard control battery pack
Electric voltage equalization between internal battery pack cell, it is possible to by the working condition of each battery pack of host computer remote monitoring, is protected
Hinder the operation of the stable safety of underground coal mine uninterruption power source.
The technical proposal for solving the technical problem of the invention is：A kind of remote controlled type Flameproof and intrinsically safe uninterrupted power supply
Power supply, including explosion-proof chamber and the battery management system mainboard, power supply unit, STS, inverse that is arranged in explosion-proof chamber
Become device, AC-DC conversion module, DC-DC modular converters and intrinsic safety module；The battery management system mainboard connects with power supply unit
Connect；The power supply unit be arranged in parallel it is multigroup, respectively including battery management system daughter board, lithium battery group and charge and discharge control mould
Block, the charge and discharge control module and battery management system daughter board are connected with lithium battery group respectively；The charge and discharge control module
Including charger, charging D.C. contactor, electric discharge D.C. contactor and Hall current sensor；The explosion-proof chamber is provided with input
With output end, the input that externally fed is connected to explosion-proof chamber is divided into three tunnels, is connected to again wherein being connected to STS all the way
The output end of explosion-proof chamber, exports AC127V；Another road is connected to AC-DC conversion module input, AC-DC conversion module output end warp
Cross diode D1 and be connected to battery management system mainboard and each battery management system daughter board, be that mainboard and daughter board provide DC24V
Power supply；The charger input of each power supply unit is also connected to all the way, and charger output connects through overcharge D.C. contactor
Corresponding lithium battery group is connected to, lithium battery group is charged；Each lithium battery group output is connected to electric discharge D.C. contactor, then passes through
Hall current sensor is connected to inverter direct-flow input end, and inverter output end is connected to STS, realizes inverse
Become output AC127V, DC12V outputs are converted to while being connected in intrinsic safety module；Other inverter direct-flow input end is connected to DC-
DC modular converter inputs, DC-DC modular converters output end is connected to battery management system mainboard and each by diode D2
Battery management system daughter board, backup is provided for battery management system.
The battery management system mainboard include microcontroller, storage chip, ethernet module, CAN module and
Display module, battery management system mainboard is connected by CAN with each battery management system daughter board；Battery management system
The data of collection are uploaded to BMS mainboards by daughter board by CAN, and the data of upload are stored in by BMS mainboards by microcontroller
Storage chip, and according to the lithium battery group information of reception, judge whether carry out electric voltage equalization between each lithium battery group；If lithium battery group
Between pressure difference it is excessive, it will voltage is carried out in battery pack charge or discharge balanced, during charging, battery management system mainboard is to electricity
Pond management system daughter board sends control command, the charge switch of the maximum lithium battery group of off voltage；Battery management system during electric discharge
Daughter board of uniting will control the discharge switch of the minimum lithium battery group of off voltage；When pressure difference is in normal range value between lithium battery group,
Stop balanced.
The battery management system daughter board is by microcontroller, battery management chip, balance protection module, current acquisition mould
Block, temperature collect module, CAN module composition；The microcontroller is connected by spi bus with battery management chip, electricity
Pond managing chip is connected with balance protection module, and be connected to by voltage acquisition line each cell of lithium electronics pond group
At lug；Balance protection module uses metal-oxide-semiconductor as equalizer switch, and discharge resistance is in parallel with each cell；Cell tube
Manage chip and detect each monomer battery voltage information, if pressure difference is excessive between cell, equalizer switch will be closed, pass through the electricity that discharges
Hinder and passive equalization discharge is carried out to the battery of overtension；In addition, microcontroller is passed by current acquisition module and Hall current
Sensor is connected, and lithium battery group output line passes through Hall current sensor, and the discharge current of lithium battery group is detected with this；Temperature acquisition
Module is connected at single battery pole ears, detects the temperature information of battery；If uninterruption power source occurred in the course of the work
Temperature, excessively stream abnormality, microcontroller will control alarm module to be alarmed, and when abnormal serious, microcontroller will be switched off electric discharge
Switch stops electric discharge.
The battery management system mainboard accesses underground ethernet ring network by ethernet module, and well is accessed by ethernet ring network
In the host computer of upper Control Room, uninterruption power source information is real-time transmitted to host computer on well by battery management system mainboard,
Can be with remote real-time monitoring underground back-up source by upper computer software.Meanwhile, down-hole power equipment can be set in upper computer software
Relevant parameter (for example：Overcharge protection value, overheat protector value, balanced start voltage, balanced close voltage etc.), then by with
Too net carries out telecommunication with battery management system mainboard, and battery management system mainboard receives and stores and pass through after configuration information
CAN is sent to battery management system daughter board, and it is dynamic that battery management system daughter board implements corresponding control according to the information of reception
Make, realize the remote control to underground uninterruption power source.
Uninterruption power source has the controllable intrinsic safety output of four tunnels, intrinsic safety module by ac-dc converter circuit, mu balanced circuit,
Current foldback circuit is constituted.Input input AC127V is by AC-DC conversion, voltage stabilizing and overcurrent protection output stabilization
DC12V.In addition, all connecting a reverse-blocking tetrode thyristor per road intrinsic safety module, reverse-blocking tetrode thyristor passes through control line and battery management system
Whether mainboard of uniting is connected, and battery management system mainboard is by controlling reverse-blocking tetrode thyristor, so as to control to export per intrinsic safety module all the way
Power supply.
Beneficial effect：A kind of remote controlled type Flameproof and intrinsically safe uninterruption power source of the present invention, uninterruption power source is adopted
With multiple battery pack parallel structures, internal battery pack often saves cell and connected.When colliery externally fed is powered off, energy
Enough provided for a long time for underground equipment by uninterruption power source, powerful uninterrupted power supply.Battery management system mainboard
It is connected by CAN with each battery management system daughter board, realizes centerized fusion.Battery management system mainboard is according to battery
Between electric voltage equalization between the battery information control battery pack that management system daughter board is uploaded, battery management system daughter board control cell
Electric voltage equalization so that pressure difference control is in safe range between battery.Meanwhile, battery management system daughter board will gather battery pack current
With temperature information, when there are the abnormalities such as excessively stream, excess temperature, disconnect charge switch or discharge switch is protected.In addition, electric
Battery data is uploaded to PC host computers on well by pond management system mainboard by underground ethernet ring network, by battery management system
Position machine software can each battery pack of remote monitoring running status, it is possible to the relevant parameter information of remotely located power supply unit,
Ease of use personnel's remote control, ensures that uninterruption power source is safely and steadily run.
Brief description of the drawings
Fig. 1 is system architecture diagram of the invention.
Fig. 2 is intrinsic safety module principle figure of the invention.
Fig. 3 is battery management system mainboard structure block diagram involved in the present invention.
Fig. 4 is battery management system daughter board structured flowchart involved in the present invention.
Fig. 5 is the balanced flow chart of battery management system mainboard control battery voltage involved in the present invention.
Fig. 6 is the balanced flow chart of battery management system daughter board control monomer battery voltage involved in the present invention.
Fig. 7 is down-hole application embodiment schematic diagram involved in the present invention.
Embodiment
The specific implementation method to the present invention is further described below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source, including explosion-proof chamber, battery management system
Unite BMS mainboards, many power supply units (particular number can be set according to bearing power), inverter, STS, AC-DC
Modular converter, the controllable intrinsic safety output of DC-DC modular converters and four tunnels.Power supply unit includes battery management system BMS daughter boards, lithium
Battery pack and charge and discharge control module.Each lithium battery group is composed in series by 16 section single lithium batteries, and charge and discharge control module is made
With being control battery charging condition, it is made up of D.C. contactor, diode, charger and Hall current sensor, direct current
Contactor as power supply unit charge switch J1 and discharge switch J2.Explosion-proof chamber is respectively equipped with input and output end, outside
The input that power supply is connected to explosion-proof chamber is divided into three tunnels, and STS is connected to all the way and is connected to output end again, AC127V is exported；
Another road is connected to AC-DC module input, and AC-DC output ends are connected to BMS mainboards and each BMS daughter boards by diode D1,
DC24V is provided for mainboard and daughter board to power；The charger input of each power supply unit, charger output are also connected to all the way
Corresponding lithium battery group is connected to through overcharge D.C. contactor, lithium battery group is charged.Each lithium battery group output, which is connected to, puts
Electric D.C. contactor, is then connected to inverter direct-flow input end by Hall current sensor, and inverter output end is connected
To STS, realize that inversion output AC127V exports DC12V with intrinsic safety.Other inverter direct-flow input end is connected to
DC-DC modular converter inputs, DC-DC output ends are connected to BMS mainboards and each BMS daughter boards by diode D2, are in BMS
Portion provides backup.When externally fed has electricity, input inputs AC127V and exports AC127V pairs by STS
Load supplying, and DC12V is exported by intrinsic safety module, if battery electric quantity is not enough in addition, all battery packs will simultaneously be filled
Electricity；When externally fed powered off, uninterruption power source will be switched to and powered, all battery packs are discharged simultaneously in power supply,
Direct current is converted to by AC127V by inverter, and it is load supplying to export DC12V by intrinsic safety module.
As shown in Fig. 2 intrinsic safety module includes ac-dc converter circuit, mu balanced circuit, current foldback circuit.Input is inputted
AC127V, first passes around transformer, rectifier bridge, and electric capacity C1 carries out Transformer Rectifier filtering, converts voltages into DC24V.So
After be linked on mu balanced circuit LM317 chips, by resistance R1 and R2 regulation, export stable DC12V voltages and 1.5A
Output current.Output protection is carried out finally by current foldback circuit, when output end current is excessive or short-circuit, electric current is by electricity
Resistance R7 causes the reverse input end voltage of LM393 voltage comparators to raise, and causes LM393 positive input voltages by resistance R4
Reduction, now LM393 output ends OUT outputs low level, makes resistance R1 shorted to earths.According to LM317 output voltage calculation formula
Understand, LM317 output ends output voltage is 1.25V, therefore to circuit formation protective effect.Simultaneously using two 12V voltage-stabiliser tubes
D5, D6 carry out duplicate protection to output voltage, prevent from increasing beyond voltage, export stable DC12V.
As shown in figure 3, BMS mainboards include microcontroller, memory, ethernet module, CAN module and display mould
Block.Microcontroller uses STM32F107 chips, and memory uses SD card data storage.BMS mainboards are using CAN and each
BMS daughter boards are connected.The data of collection are uploaded to BMS mainboards by BMS daughter boards by CAN, and microcontroller passes through spi bus
Write data into SD card, upper computer software in coal mine is then upload the data to by ethernet module.
As shown in figure 4, BMS daughter boards are by microcontroller, battery management chip, balance protection module, current acquisition module, temperature
Spend acquisition module, CAN module, alarm and protection module composition.Battery management chip uses LTC6803 chips, microcontroller
It is connected by spi bus with battery management chip, battery management chip is connected with balance protection module, and passes through voltage acquisition line
At the lug for being connected to each cell.Equalizing circuit uses metal-oxide-semiconductor as equalizer switch, by discharge resistance and each monomer
Cell parallel.Battery management chip detects each monomer battery voltage information, to occur in cell operations overvoltage, pressure difference
The abnormality such as excessive, will carry out passive equalization discharge by balance protection module to the battery of overtension.In addition, microcontroller
Device is connected by current acquisition module with Hall current sensor, and battery pack output line passes through current sensor, and electricity is detected with this
The discharge current of pond group.Temperature collect module is connected at single battery pole ears using thermistor, detects the temperature information of battery,
If there are the abnormalities such as excess temperature, excessively stream, microcontroller will control alarm module to be alarmed, when abnormal serious, microcontroller
It will be switched off discharge switch and stop electric discharge.
As shown in figure 5, BMS mainboards control battery pack between electric voltage equalization, equilibrium occur uninterruption power source charging or
In discharge process.When uninterruption power source works, first have to set battery Homogeneity between groups switch DP VopenClosed with balanced
Pressure difference Vclose, the difference v of maximum voltage and minimum voltage in battery pack is then calculated in real time.When uninterruption power source discharges,
Judge whether pressure difference v is more than Vopen, if the discharge switch of the minimum battery pack of the off voltage more than if, until pressure difference v is less than
VcloseWhen, close battery power discharge switch and recover regular picture.When uninterruption power source charges, whether pressure difference v is judged
More than Vopen, if the charge switch of the maximum battery pack of the off voltage more than if, until pressure difference v is less than VcloseWhen, close the electricity
Pond group charge switch recovers to charge normal.
As shown in fig. 6, electric voltage equalization between cell in BMS daughter boards control battery pack, equilibrium occurs in battery pack charging
During standing.Equally, before uninterruption power source work, balanced switch DP v between cell is set firstopenWith
Pressure difference v is closed in equilibriumclose, then the minimum cell of voltage found out by BMS daughter boards, voltage is designated as vmin, then calculate equilibrium
Initiation value vstart=vmin+vopen, and balanced close value vstop=vmin+vclose.Each single lithium battery passes through cell tube
Manage a chip equalizing resistance in parallel, using metal-oxide-semiconductor as equalizer switch, by battery management chip control the connection of metal-oxide-semiconductor with
Disconnect.When battery pack is in charging or stood, judge often whether section monomer battery voltage is more than vstart, should if the closure more than if
The equalizer switch that batteries are connected is by conductive discharge, until cell voltage is less than vstopWhen disconnect equalizer switch, complete single
Electric voltage equalization between body battery.
Embodiment
The course of work of the present invention is described further with reference to Fig. 7.A kind of uninterrupted power supply electricity of present invention design
Source, particularly a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source used suitable for underground coal mine.Outside colliery
During power supply power-off, it can be provided for a long time, greatly for electrical equipments such as monitoring, illumination, blower fans by underground uninterruption power source
The uninterrupted power supply of power.BMS daughter boards gather the letter such as lithium battery voltage, electric current, temperature by data acquisition line in power supply unit
Breath, then uploads to BMS mainboards, BMS mainboards are carried out real according to the battery information of upload by the information of collection by CAN
When balance protection.In addition, the battery information of collection is uploaded to Control Room PC host computers by BMS mainboards by underground ethernet ring network
In, PC installs BMS upper computer softwares, and staff can uninterruptedly be supplied by the online remote monitoring underground of BMS upper computer softwares
The running status of power supply, and battery pack essential information, it is possible to the correlation of remotely located uninterruption power source equipment
Parameter information, it is easy to control operation.Once unusual condition occurs in uninterruption power source, staff can power off maintenance in time,
Ensure uninterruption power source in the stable work of coal mine downhole safety.
Claims (5)
1. a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source, it is characterised in that including explosion-proof chamber and be arranged at every
Battery management system mainboard, power supply unit, STS, inverter, AC-DC conversion module, DC-DC conversions in blast chamber
Module and intrinsic safety module；The battery management system mainboard is connected with power supply unit；The power supply unit be arranged in parallel it is multigroup, point
Bao Kuo not battery management system daughter board, lithium battery group and charge and discharge control module, the charge and discharge control module and battery management
System daughter board is connected with lithium battery group respectively；The charge and discharge control module includes charger, charging D.C. contactor, electric discharge directly
Flow contactor and Hall current sensor；The explosion-proof chamber is provided with input and output end, and externally fed is connected to explosion-proof chamber
Input is divided into three tunnels, wherein being connected to the output end that STS is connected to explosion-proof chamber again all the way, exports AC127V；Another road
AC-DC conversion module input is connected to, AC-DC conversion module output end is connected to battery management system mainboard by diode D1
With each battery management system daughter board, provide DC24V for mainboard and daughter board and power；Each power supply unit is also connected to all the way
Charger input, charger output is connected to corresponding lithium battery group through overcharge D.C. contactor, and lithium battery group is charged；Often
Individual lithium battery group output is connected to electric discharge D.C. contactor, and being then connected to inverter direct current by Hall current sensor inputs
End, and inverter output end is connected to STS, realizes that inversion exports AC127V, is changed while being connected in intrinsic safety module
Exported for DC12V；Other inverter direct-flow input end is connected to DC-DC modular converter inputs, DC-DC modular converter output ends
Battery management system mainboard and each battery management system daughter board are connected to by diode D2, after being provided for battery management system
Available electricity.
2. a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source according to claim 1, it is characterised in that described
Battery management system mainboard by ethernet module access underground ethernet ring network, by ethernet ring network access well on Control Room it is upper
In the machine of position, uninterruption power source information is real-time transmitted to host computer on well by battery management system mainboard, remote by host computer
Journey monitors underground uninterruption power source in real time；Meanwhile, host computer sets the relevant parameter of down-hole power equipment, including overcharges guarantor
Shield value, overheat protector value, balanced startup voltage and balanced closing voltage, are then entered by Ethernet with battery management system mainboard
Row telecommunication, battery management system mainboard, which is received, to be stored after configuration information and is sent to battery management system by CAN
Daughter board, battery management system daughter board implements corresponding control action according to the information of reception, realizes to underground uninterrupted power supply electricity
The remote control in source.
3. a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source according to claim 1, it is characterised in that described
Battery management system mainboard includes microcontroller, storage chip, ethernet module, CAN module and display module, battery
Management system mainboard is connected by CAN with each battery management system daughter board；Battery management system daughter board is by collection
Data upload to BMS mainboards by CAN, and the data of upload are stored in storage chip, and root by BMS mainboards by microcontroller
According to the lithium battery group information of reception, judge whether carry out electric voltage equalization between each lithium battery group；, will if pressure difference is excessive between lithium battery group
Equilibrium can be carried out to voltage in battery pack charge or discharge, during charging, battery management system mainboard is sub to battery management system
Plate sends control command, the charge switch of the maximum lithium battery group of off voltage；Battery management system daughter board will be controlled during electric discharge
The discharge switch of the minimum lithium battery group of off voltage；When pressure difference is in normal range value between lithium battery group, stop balanced.
4. a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source according to claim 1, it is characterised in that described
Battery management system daughter board is by microcontroller, battery management chip, balance protection module, current acquisition module, temperature acquisition mould
Block, CAN module composition；The microcontroller is connected by spi bus with battery management chip, battery management chip with
The protection module that weighs is connected, and is connected to by voltage acquisition line at the lug of each cell of lithium electronics pond group；Equilibrium is protected
Shield module uses metal-oxide-semiconductor as equalizer switch, and discharge resistance is in parallel with each cell；Battery management chip detection is each
Monomer battery voltage information, if pressure difference is excessive between cell, will close equalizer switch, by discharge resistance to overtension
Battery carries out passive equalization discharge；In addition, microcontroller is connected by current acquisition module with Hall current sensor, lithium battery
Group output line passes through Hall current sensor, and the discharge current of lithium battery group is detected with this；Temperature collect module is connected on monomer electricity
Chi Jierchu, detects the temperature information of battery；If there is excess temperature, crosses throat floater shape in the course of the work in uninterruption power source
State, microcontroller will control alarm module to be alarmed, when abnormal serious, and microcontroller will be switched off discharge switch and stop electric discharge.
5. a kind of remote controlled type Flameproof and intrinsically safe uninterruption power source according to claim 1, it is characterised in that between not
Disconnected power supply has the controllable intrinsic safety output in four tunnels, and intrinsic safety module is by ac-dc converter circuit, mu balanced circuit, current foldback circuit
Composition, input input AC127V is by AC-DC conversion, voltage stabilizing and the stable DC12V of overcurrent protection output；In addition, per road sheet
Peace module all connects a reverse-blocking tetrode thyristor, and reverse-blocking tetrode thyristor is connected by control line with battery management system mainboard, cell tube
System board is managed by controlling reverse-blocking tetrode thyristor, so as to control whether export power supply per intrinsic safety module all the way.
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| CN201710248793.2A CN106972618A (en) | 2017-04-17 | 2017-04-17 | A kind of remote controlled type Flameproof and intrinsically safe uninterruption power source |
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| CN201710248793.2A CN106972618A (en) | 2017-04-17 | 2017-04-17 | A kind of remote controlled type Flameproof and intrinsically safe uninterruption power source |
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| CN107769316A (en) * | 2017-11-03 | 2018-03-06 | 许继电源有限公司 | A kind of online equalizing system of battery pack and battery |
| CN108418299A (en) * | 2018-04-10 | 2018-08-17 | 包头市北工机械有限公司 | A kind of lithium ion battery uninterruptible power supply |
| CN108847505A (en) * | 2018-06-21 | 2018-11-20 | 电子科技大学 | A kind of sodium-sulphur battery management system based on QT |
| CN109103955A (en) * | 2018-08-17 | 2018-12-28 | 秋玺能源科技（广州）有限公司 | Lead-acid accumulator equilibrium and monitoring method and system |
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| CN111131086A (en) * | 2019-12-11 | 2020-05-08 | 国网山东省电力公司日照供电公司 | Switch power supply sensing system |
| CN112332483A (en) * | 2020-10-26 | 2021-02-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Energy management control method of series lithium battery pack |
| CN112332481A (en) * | 2020-10-26 | 2021-02-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Current equalizing method of multi-battery pack parallel system |
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| CN108418299A (en) * | 2018-04-10 | 2018-08-17 | 包头市北工机械有限公司 | A kind of lithium ion battery uninterruptible power supply |
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| CN109103955A (en) * | 2018-08-17 | 2018-12-28 | 秋玺能源科技（广州）有限公司 | Lead-acid accumulator equilibrium and monitoring method and system |
| CN109466376A (en) * | 2019-01-03 | 2019-03-15 | 淮海工学院 | A kind of mine locomotive lithium battery startup power supply battery management system |
| CN110556594A (en) * | 2019-08-07 | 2019-12-10 | 威海凯瑞电气股份有限公司 | battery first-series-parallel monitoring and management system |
| CN110429705A (en) * | 2019-08-29 | 2019-11-08 | 强文 | A kind of integrated type electrical information interactive device of included UPS |
| CN111131086A (en) * | 2019-12-11 | 2020-05-08 | 国网山东省电力公司日照供电公司 | Switch power supply sensing system |
| CN112332483A (en) * | 2020-10-26 | 2021-02-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Energy management control method of series lithium battery pack |
| CN112332481A (en) * | 2020-10-26 | 2021-02-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Current equalizing method of multi-battery pack parallel system |
| WO2022188053A1 (en) * | 2021-03-10 | 2022-09-15 | 华为数字能源技术有限公司 | Distributed power supply system and control method |
| WO2022194106A1 (en) * | 2021-03-15 | 2022-09-22 | 荣耀终端有限公司 | Dual-battery charging and discharging circuit and control method, and electronic device |
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