CN106849259A - Ups system and its ups system intellectuality charge-discharge circuit - Google Patents
Ups system and its ups system intellectuality charge-discharge circuit Download PDFInfo
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- CN106849259A CN106849259A CN201710153816.1A CN201710153816A CN106849259A CN 106849259 A CN106849259 A CN 106849259A CN 201710153816 A CN201710153816 A CN 201710153816A CN 106849259 A CN106849259 A CN 106849259A
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- Prior art keywords
- ups system
- switching tube
- charge
- batteries
- intellectuality
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J9/061—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 DC powered loads
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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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- 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 ups system and its ups system intellectuality charge-discharge circuit, for providing electric energy conversion in ups system, to realize the discharge and recharge of the batteries in ups system, the ups system includes dc source, controller, communication unit, some batteries and load；The controller inside includes DSP module, positive electrode bus, negative electrode bus and power energy monitoring and controlling module；The power energy monitoring and controlling module includes ups system intellectuality charge-discharge circuit, drive circuit, current sample module and voltage sample module；Characterized in that, the ups system intellectuality charge-discharge circuit is provided with anode connection terminal, energy storage end, adjustable side and shorted end；The ups system intellectuality charge-discharge circuit includes electric capacity C1, switching tube Q1, Q2 and inductance L1；Ups system of the invention and its ups system intellectuality charge-discharge circuit make the battery of multigroup different size in ups system can discharge and recharge simultaneously, it is to avoid discharge and recharge of the abnormal batteries to other batteries is impacted.
Description
Technical field
The present invention relates to UPS charging circuits field, espespecially a kind of ups system and its ups system intellectuality charge-discharge circuit.
Background technology
In high power UPS system application, to ensure that the power supply for providing stabilization, general preparation time can be continued during city's electrical anomaly
It is more long, also imply that batteries are more.In whole power-supply system, the cost of battery section is often several times as much as UPS electricity
Source, accounts for the major part of system cost.In Communication Power Equipment installing engineering design specification, to have to batteries clearly
Ask：Different manufacturers, different capabilities, different model, the batteries of different times forbid it is used in parallel because multiple batteries
During charged in parallel, if any one battery cell exception, the voltage of other batteries will cannot be charged by clamper, many
During individual batteries parallel discharge, may be discharged by other batteries diversified in specifications per Battery pack group；And battery is most
Multi-parallel group number does not exceed 4 groups.This means the replacing of power-supply system batteries is often batch replacement, cause much to have
Effect battery cannot be utilized, and cause great economic loss.
The content of the invention
Based on this, the present invention provide a kind of battery that can allow multigroup different size can and meanwhile the ups system that works and its
Ups system intellectuality charge-discharge circuit.
In order to realize the purpose of the present invention, the present invention uses following technical scheme：
A kind of ups system and its ups system intellectuality charge-discharge circuit, for providing electric energy conversion in ups system, with
The discharge and recharge of the batteries in ups system is realized, the ups system includes dc source, connects the control of the dc source
Device, the communication unit for connecting the controller, some batteries for connecting the controller and connect the negative of the controller
Carry；The controller is provided with electrical energy inputs, signal end, test side, some battery terminal connections and load connection end；The UPS
Some cell stations are provided with system, the cell station is used to place the battery；The cell station and the control
The battery terminal connections correspondence of device；The controller inside includes DSP module, positive electrode bus, negative electrode bus and power energy monitoring and controlling mould
Block；The power energy monitoring and controlling module includes ups system intellectuality charge-discharge circuit, connects the ups system intellectuality discharge and recharge electricity
The drive circuit on road, the current sample module and voltage sample module that connect the ups system intellectuality charge-discharge circuit；It is special
Levy and be, the ups system intellectuality charge-discharge circuit is provided with anode connection terminal, energy storage end, adjustable side and shorted end；It is described
Ups system intellectuality charge-discharge circuit energy storage end as the controller battery terminal connections；The ups system intellectuality is filled
The anode connection terminal of discharge circuit is connected with the positive electrode bus；The energy storage end of ups system intellectuality charge-discharge circuit with
The positive pole connection of the batteries.
Ups system of the invention and its ups system intellectuality charge-discharge circuit are by the every group storage battery in for ups system
Group sets corresponding ups system intellectuality charge-discharge circuit, makes the battery of multigroup different size in ups system can be simultaneously
Discharge and recharge, it is to avoid discharge and recharge of the abnormal batteries to other batteries is impacted, and be it also avoid batteries and is passed through
Other batteries are discharged；Meanwhile, by the control to ups system intellectuality charge-discharge circuit, make each in ups system
Batteries can carry out discharge and recharge under given voltage or electric current, and each batteries can synchronize or be grouped etc. discharge and recharge side
Formula.
Wherein in one embodiment, the ups system intellectuality charge-discharge circuit includes electric capacity C1, switching tube Q1, Q2
And inductance L1；Described switching tube Q1, Q2 are provided with the first connection end, the second connection end and the 3rd connection end；The one of the electric capacity C1
Hold the anode connection terminal as ups system intellectuality charge-discharge circuit；One end of the electric capacity C1 and the positive electrode bus
Connection；First connection end of the switching tube Q1 is connected with one end of the electric capacity C1；Second connection end of the switching tube Q1
The first connection end with the switching tube Q2 is connected；Second connection end of the switching tube Q2 connects with the other end of the electric capacity C1
Connect；Second connection end of the switching tube Q2 is also connected with the negative electrode bus；Second connection end of the switching tube Q1 also with
One end connection of the inductance L1；The other end of the inductance L1 as the ups system intellectuality charge-discharge circuit energy storage
End；The other end of the inductance L1 is connected with the positive pole of the battery.
Wherein in one embodiment, described switching tube Q1, Q2 are the power transistor with internal diode, the switch
First connection end of pipe Q1, Q2 is colelctor electrode, and second connection end of described switching tube Q1, Q2 is emitter-base bandgap grading, described switching tube Q1, Q2
The 3rd connection end be base stage；The colelctor electrode of the switching tube Q1 is connected with one end of the electric capacity C1；The switching tube Q1's
Emitter-base bandgap grading is connected with the colelctor electrode of the switching tube Q2；The emitter-base bandgap grading of the switching tube Q2 is connected with the other end of the electric capacity C1；Institute
The emitter-base bandgap grading for stating switching tube Q2 is also connected with the negative electrode bus；The emitter-base bandgap grading of the switching tube Q1 also connects with one end of the inductance L1
Connect.
Wherein in one embodiment, the communication unit is to described some to the DSP module transmission in the controller
Battery pack characteristic parameters in series；It is corresponding with a cell station per Battery pack characteristic parameters in series；The battery behavior parameters in series
Including rated capacity CN, charging voltage VBN, cut-off protection voltage VPN, limit charging current IBNAnd limit discharge current IPN。
Wherein in one embodiment, described in the drive circuit and the ups system intellectuality charge-discharge circuit
Switching tube Q1, Q2 are connected；The drive circuit sends the first pulse signal to described switching tube Q1, Q2 respectively and the second pulse is believed
Number；First pulse signal and the second pulse signal control the on off operating mode of described switching tube Q1, Q2 respectively.
Wherein in one embodiment, the ups system is using the electric energy of the dc source for the batteries are filled
When electric, the ups system intellectuality charge-discharge circuit has two kinds of working conditions of charging accumulation of energy process and charging exoergic process；Institute
State during charging accumulation of energy, the switching tube Q1 is open-minded, the switching tube Q2 shut-offs；It is described in the charging exoergic process
Switching tube Q1 is turned off, the switching tube Q2 shut-offs；The ups system intellectuality charge-discharge circuit plays antihypertensive effect.
Wherein in one embodiment, the ups system is using the storing energy of the batteries for the load is carried
During power supply energy, the ups system intellectuality charge-discharge circuit has electric discharge accumulation of energy process and electric discharge two kinds of working conditions of exoergic process；
During accumulation of energy of discharging, the switching tube Q1 shut-offs, the switching tube Q2 is open-minded；It is described in the electric discharge exoergic process
Switching tube Q1 is turned off, the switching tube Q2 shut-offs；The ups system intellectuality charge-discharge circuit raising voltage effect.
Wherein in one embodiment, transmitted to the DSP module in the controller by the communication unit
After the corresponding battery behavior parameters in series, when the electric energy that the dc source is utilized in the ups system is the electric power storage
When under the group charged state of pond, the DSP module adjusts the UPS systems by controlling the corresponding drive circuit of each cell station
The intelligent charge-discharge circuit of system, makes the charging voltage in the voltage at the batteries two ends and the battery behavior parameters in series
VBNIt is close or consistent；The ups system using the batteries storing energy for it is described load electricity is provided when, it is described
The voltage that DSP module passes through batteries two ends described in the voltage sample module samples, but the batteries two ends electricity
Force down the cut-off protection voltage V in the battery behavior parameters in seriesPNWhen, the DSP module makes the batteries corresponding
The drive circuit stop output the first pulse signal and the second pulse signal, make the batteries stop output current.
Wherein in one embodiment, when the electric energy that the dc source is utilized in the ups system is the electric power storage
During the group charged state of pond, each batteries can be using synchronous charging and packet two kinds of charge modes of charging；In synchronous charging
Under pattern, rated capacity C of the DSP module in the corresponding battery behavior parameters in series of each batteriesN
The electric current that size distribution is exported by the dc source, the DSP module adjusts each UPS systems by the drive circuit
The working condition of the intelligent charge-discharge circuit of system, actual charge current size and its rated capacity that order passes through the batteries
Size is directly proportional；In the case where charge mode is grouped, the DSP module is according to the corresponding battery behavior series of the batteries
Restriction charging current I in parameterBN, the work of the ups system intellectuality charge-discharge circuit is adjusted by the drive circuit
State, order is charged electric by the restriction in the actual charge current size of the batteries and the battery behavior parameters in series
Stream IBNIt is close or consistent.
Wherein in one embodiment, when the ups system is the load using the storing energy of the batteries
When providing electric energy, each batteries can be using synchronous discharge and packet two kinds of discharge modes of electric discharge；In synchronous discharge pattern
Under, rated capacity C of the DSP module in the corresponding battery behavior parameters in series of each batteriesN's
Size, the working condition of each ups system intellectuality charge-discharge circuit is adjusted by the drive circuit, and order passes through the storage
The actual discharge size of current of battery pack and its rated capacity CNSize is directly proportional；In the case where discharge mode is grouped, the DSP module
According to the restriction discharge current I in the corresponding battery behavior parameters in series of the batteriesPN, by the drive circuit
The working condition of the ups system intellectuality charge-discharge circuit is adjusted, is made big by the actual discharge electric current of the batteries
It is small with the battery behavior parameters in series in restriction charging current IBNIt is close or consistent.
Brief description of the drawings
Fig. 1 is the structure chart of the ups system for setting and being related to of the invention；
Fig. 2 is the cut-away view of the controller in the ups system shown in Fig. 1；
Fig. 3 is the circuit diagram of the ups system intellectuality charge-discharge circuit in the controller shown in Fig. 2.
Specific embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.But, the present invention can be with perhaps
More different form is realized, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make
Understanding to the disclosure is more thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article with belong to technical field of the invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Fig. 1 is referred to, is the structure chart of ups system involved in the present invention, the ups system includes dc source 10, connects
The controller 20 for connecing the dc source 10, the communication unit 30 for connecting the controller 20, the storage for connecting the controller 20
The load 50 of battery pack 40 and the connection controller 20.Some cell stations 41 are provided with the ups system；The battery work
Position 41 is used to place the batteries 40；It is the battery that the ups system can utilize the electric energy of the dc source 10
Group 40 charges；The ups system can utilize the energy in the batteries 40 for the load 50 is powered；The ups system
Using the electric energy of the dc source 10 for the load 50 is powered.The dc source 10 includes positive output end and negative output
End；The controller 20 is used to realize the conversion of DC voltage；The dc source 10 is provided with positive output end and negative output terminal；Institute
State controller 20 and be provided with electrical energy inputs, signal end, test side, some battery terminal connections and load connection end；The load 50
It is provided with positive input terminal and negative input end；The electrical energy inputs of the controller 20 connect with the positive output end of the dc source 10
Connect；The signal end of the controller 20 is connected with the communication unit 30；The test side of the controller 20 and the direct current
The negative output terminal connection in source 10；The battery terminal connections are corresponding with the cell station 41；The battery connection of the controller 20
Hold and be connected with the positive pole of the batteries 40 in the corresponding cell station 41；The negative pole of the batteries 40 with it is described
The negative output terminal connection of dc source 10；The positive input terminal of the load 50 is connected with the load connection end of the controller 20；
The negative input end of the load 50 is connected with the negative output terminal of the dc source 10.
Fig. 2 is referred to, is the cut-away view of the controller 20 in ups system, the controller 20 includes DSP module
60th, positive electrode bus 70, negative electrode bus 80 and some power energy monitoring and controlling modules 90；One end of the positive electrode bus 70 is used as the control
The electrical energy inputs of device 20；The other end of the positive electrode bus 70 as the controller 20 load connection end；The negative pole
One end of bus 80 as the controller 20 test side；The DSP module 60 by the signal end of the controller 20 with
The communication unit 30 is connected；The power energy monitoring and controlling module 90 includes that ups system intellectuality charge-discharge circuit 91, connection are described
The drive circuit 92 of ups system intellectuality charge-discharge circuit 91, the electric current for connecting the ups system intellectuality charge-discharge circuit 91
Sampling module 93 and voltage sample module 94；
The ups system intellectuality charge-discharge circuit 91 is provided with anode connection terminal, energy storage end, adjustable side and shorted end；Institute
The anode connection terminal for stating ups system intellectuality charge-discharge circuit 91 is connected with the positive electrode bus 70；The ups system is intelligent
The energy storage end of charge-discharge circuit 91 as the controller 20 battery terminal connections；The ups system intellectuality charge-discharge circuit
91 shorted end is connected with the negative electrode bus 80；The drive circuit 92 and ups system intellectuality charge-discharge circuit 91
Adjustable side connection；The drive circuit 92 is also connected with the DSP module 60；One end connection of the current sample module 93
The energy storage end of the ups system intellectuality charge-discharge circuit 91；The other end of the current sample module 93 and the DSP module
60 connections；One end of the voltage sample module 94 connects the energy storage end of the ups system intellectuality charge-discharge circuit 91；It is described
Voltage sample module 94 is also connected with the negative electrode bus 80；The voltage sample module 94 is also connected with the DSP module 60；
The power energy monitoring and controlling module 90 is corresponded with the cell station 41.
Fig. 3 is referred to, is the circuit diagram of the ups system intellectuality charge-discharge circuit 91.The ups system intellectuality is filled
Discharge circuit 91 includes electric capacity C1, switching tube Q1, Q2 and inductance L1；One end of the electric capacity C1 is used as the ups system intelligence
Change the anode connection terminal of charge-discharge circuit 91；One end of the electric capacity C1 is connected with the positive electrode bus 70；The switching tube Q1,
Q2 is respectively provided with the first connection end, the second connection end and the 3rd connection end；Wherein in a kind of embodiment, described switching tube Q1, Q2
It is the power transistor with internal diode, first connection end of described switching tube Q1, Q2 is colelctor electrode, the switching tube Q1,
Second connection end of Q2 is emitter-base bandgap grading, and the 3rd connection end of described switching tube Q1, Q2 is base stage；The colelctor electrode of the switching tube Q1 with
One end connection of the electric capacity C1；The emitter-base bandgap grading of the switching tube Q1 is connected with the colelctor electrode of the switching tube Q2；The switching tube
The emitter-base bandgap grading of Q2 is connected with the other end of the electric capacity C1；The emitter-base bandgap grading of the switching tube Q2 is also connected with the negative electrode bus 80；Institute
The one end of the emitter-base bandgap grading of switching tube Q1 also with the inductance L1 is stated to be connected；The base stage of described switching tube Q1, Q2 is respectively as the UPS
The adjustable side of system intelligent charge-discharge circuit 91；The other end of the inductance L1 is used as ups system intellectuality discharge and recharge
The energy storage end of circuit 91；The other end of the inductance L1 is connected with the positive pole of the battery.
The voltage sample module 94 is used for the batteries being installed in the corresponding battery station 41 of sampling
Voltage V between 40 positive poles and negative poleBAnd fed back to the DSP module 60；The current sample module 93 is installed on for sampling
The electric current of the batteries 40 in the corresponding cell station 41 simultaneously feeds back to the DSP module 60；The DSP module 60
Control command is transmitted to the drive circuit 92；The drive circuit 92 produces phase according to the control command of the DSP module 60
The first pulse signal and the second pulse signal answered；First pulse signal is used to control the switching tube Q1 to produce accordingly
Break-make switches；Second pulse signal is used to control the switching tube Q2 to produce corresponding break-make to switch.
The communication unit 30 is used to transmit some Battery pack characteristic series ginsengs to the DSP module 60 in the controller 20
Number；The battery behavior parameters in series is corresponding with the cell station 41；The battery behavior parameters in series includes rated capacity
CN, charging voltage VBN, cut-off protection voltage VPN, limit charging current IBNAnd limit discharge current IPN；Each power energy monitoring and controlling
Module 90 can be managed independently by coordinating to carry out the battery in the corresponding electric power storage group station to the DSP module 60.
When the ups system is that the batteries 40 charge using the electric energy of the dc source 10, the ups system
The cycle that one break-make of switching tube Q1, Q2 of intelligent charge-discharge circuit 91 is changed is charging make and break period；The switching tube
The charging make and break period of Q1, Q2 is divided into charging accumulation of energy process and charging exoergic process；It is described to open during the charging accumulation of energy
Close pipe Q1 open-minded, the switching tube Q2 shut-offs are described due to the Voltage unbalance between dc source 10 and the batteries 40
Produce the size of electric current and the electric current cumulative on inductance L1, while being produced on the inductance L1 consistent with voltage direction on battery
Voltage, the storage consistent by the sense of current of the batteries 40 and the builtin voltage direction of the batteries 40
Battery pack 40 does negative work, makes the storing energy of the batteries 40 be lifted；Described filling is converted to from the charging accumulation of energy process
After electric exoergic process, the switching tube Q1 shut-offs, the switching tube Q2 shut-offs, the electric current in the inductance L1 passes through the switch
The internal diode continuousing flow of Q2, now by the builtin voltage of the sense of current of the batteries 40 and the batteries 40
Direction is consistent, and the batteries 40 do negative work, continue to lift up the storing energy of batteries 40；The ups system intelligence
Change charge-discharge circuit 91 in charging make and break period, the voltage that the two ends of the batteries 40 are born is less than the dc source 10
Output voltage, ups system intellectuality charge-discharge circuit 91 serves antihypertensive effect.
The DSP module 60 will sample the voltage V at the two ends of the batteries 40 by voltage sample module 94BWith from
Charging voltage V in the battery behavior parameters in series that the communication unit 30 is obtainedBNIt is compared, the DSP module 60
The first pulse signal and the second pulse signal produced by by control command adjusting the drive circuit 92 according to comparative result；
The change of first pulse signal and the second pulse signal makes the charging in the charging make and break period of the switching tube Q1 and Q2
The time scale of accumulation of energy process and charging exoergic process is adjusted, and is made in the batteries 40 in charging process, electric power storage
The voltage V at the two ends of pond group 40BWith given charging voltage VBNIt is close or consistent.
When the batteries 40 charge, there are two kinds of charge modes, including synchronous charging pattern and packet charge mode；
Under the synchronous charging pattern, rated capacity C of the DSP module 60 according to each batteries 40NAccount for all described
The rated capacity C of batteries 40NThe electric current of the output of dc source 10 described in the pro rate of sum；The DSP module 60 is led to
Cross the working condition that the drive circuit 92 adjusts the corresponding ups system intellectuality charge-discharge circuit 91, order is from described straight
The electric current of stream power supply 10 positive pole outflow presses the rated capacity C of each batteries 40NSize is diverted through each battery
Group 40；Under the packet charge mode, the DSP module 60 will be sampled by the electric power storage by current sample module 93
The electric current I of pond group 40BWith from the charging current I in the battery behavior parameters in series that the communication unit 30 is obtainedBNCarry out
Compare, the DSP module 60 drive circuit 92 is adjusted by control command according to comparative result produced by the first pulse
Signal and the second pulse signal；The change of first pulse signal and the second pulse signal makes filling for the switching tube Q1 and Q2
The time scale of charging accumulation of energy process and charging exoergic process in electric make and break period is adjusted, and is made in the batteries 40
In charging process, by the electric current I at the two ends of the batteries 40BWith given restriction charging current IBNIt is close or consistent.
It is described when the ups system provides electric energy using the storing energy of the batteries 40 for the load 50
The process that one break-make of switching tube Q1, Q2 of ups system intellectuality charge-discharge circuit 91 is changed is an electric discharge make and break period；Institute
The electric discharge make and break period for stating switching tube Q1, Q2 is divided into electric discharge accumulation of energy process and electric discharge exoergic process；In the electric discharge accumulation of energy process
In, the switching tube Q1 shut-offs, the switching tube Q2 is open-minded, and the batteries 40 are individually formed loop with the inductance L1,
Produce the size of electric current and the electric current cumulative on the inductance L1, voltage and the batteries 40 at the inductance L1 two ends
Voltage direction is opposite；After being converted to the electric discharge exoergic process from the electric discharge accumulation of energy process, the switching tube Q1 shut-offs are described
Switching tube Q2 is turned off, and the electric current of the inductance L1 passes through the internal diode continuousing flow of the switching tube Q1, now by the electricity
The electric current for feeling L1 declines, and the voltage at the inductance L1 two ends is consistent with the voltage direction of the batteries 40, makes the load
Voltage of the voltage more than the two ends of the batteries 40 between 50 positive input terminal and negative input end, the ups system is intelligent
Charge-discharge circuit 91 serves boosting.
It is described when the ups system provides electric energy using the storing energy of the batteries 40 for the load 50
Voltage sample module 94 is sampled the voltage V at the two ends of the batteries 40BAnd fed back to the DSP module 60；The DSP module
60 by the voltage V at the two ends of the batteries 40BWith the cut-off protection voltage V in the battery behavior parameters in seriesPNCompared
Compared with as the voltage V at the two ends of the batteries 40BLess than the cut-off protection voltage V in the battery behavior parameters in seriesPNWhen,
The DSP module 60 make the drive circuit 92 stop produce the first pulse signal and the second pulse signal, the switching tube Q1,
Q2 is held off, and the batteries 40 of undertension stop output energy.
When the batteries 40 are discharged, there is two kinds of discharge modes of batteries 40, including synchronous discharge pattern and point
Group discharge mode；Under the synchronous discharge pattern, rated capacity C of the DSP module 60 according to each batteries 40N
Account for the rated capacity C of all batteries 40NThe corresponding ups system intellectuality charge-discharge circuit 91 of ratio adjustment
Working condition, size and its rated capacity C of the order from the electric current of the individual batteries 40 outputNIn all batteries
The rated capacity C of group 40NAccounting in sum is directly proportional；Under the packet charge mode, the DSP module 60 will be by electricity
Stream sampling module 93 is sampled by the electric current I of the batteries 40BWith the battery obtained from the communication unit 30
Restriction discharge current I in characteristic parameters in seriesPNIt is compared, the DSP module 60 passes through control command according to comparative result
Adjust the first pulse signal and the second pulse signal produced by the drive circuit 92；First pulse signal and the second arteries and veins
Rush signal change make electric discharge accumulation of energy process in the charging make and break period of described switching tube Q1, Q2 and electric discharge exoergic process when
Between ratio adjust, make in the batteries 40 in charging process, by the electric current I of the batteries 40BWith institute
State the corresponding restriction charging current I of batteries 40PNIt is close or consistent.
The batteries 40 in each cell station 41 can single group or multigroup while being charged；The UPS systems
System using the electric energy of the dc source 10 in the charging process of the batteries 40, each described battery that need to be charged
Group 40 can be charged under synchronous charging pattern or packet charge mode, when switching tube Q1 is connected, due to the direct current
Source 10 is in series with inductance L1 between the batteries 40 respectively, even if in the abnormal situation of the monomer of batteries described in one 40
Under, because the inductance L1 two ends have pressure drop, the voltage of the positive electrode bus 70 the abnormal battery will not be occurred
40 clampers of group, other described batteries 40 can continue to charge normal.
The batteries 40 in each cell station 41 can single group or multigroup while being discharged；The UPS systems
During system provides electric energy using the storing energy of the batteries 40 for the load 50, what need to be discharged is each described
Batteries 40 can be discharged under synchronous discharge pattern or packet discharge mode, when switching tube Q1 is connected, the electric power storage
Inductance L1 is included in pond group 40 and the loop of other batteries 40, even if in the abnormal feelings of the monomer of the batteries 40
Under condition, the voltage of the positive electrode bus 70 abnormal 40 clampers of the batteries, other described batteries will not be occurred
Group 40 can continue regular picture.
During the ups system provides electricity using the storing energy of the batteries 40 for the load 50,
In the case where the battery pack needs electric discharge, by adjusting the time of the electric discharge accumulation of energy process and electric discharge exoergic process, can
Make after the switching tube Q1 is connected, the positive pole connection voltage of each ups system intellectuality charge-discharge circuit is close, it is to avoid the storage
Battery pack 40 forms discharge loop by other described batteries 40；If the corresponding ups system intelligence of batteries 40 described in
Can change after charge-discharge circuit 91 is stopped, the switching tube Q1 shut-offs in the ups system intellectuality charge-discharge circuit 91, due to
The negative electrode of the internal diode of the switching tube Q1 is connected with the positive electrode bus 70, and other described batteries 40 cannot pass through
The batteries 40 that corresponding ups system intellectuality charge-discharge circuit 91 is stopped form discharge loop.
Ups system of the invention and its ups system intellectuality charge-discharge circuit are by the every group storage battery in for ups system
Group sets corresponding ups system intellectuality charge-discharge circuit, makes the battery of multigroup different size in ups system can be simultaneously
Discharge and recharge, it is to avoid discharge and recharge of the abnormal batteries to other batteries is impacted, and be it also avoid batteries and is passed through
Other batteries are discharged.Meanwhile, by the control to ups system intellectuality charge-discharge circuit, make each in ups system
Batteries can carry out discharge and recharge under given voltage or electric current, and each batteries can synchronize or be grouped etc. discharge and recharge side
Formula.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of ups system, it is characterised in that the ups system includes dc source, the controller that connects the dc source,
The communication unit for connecting the controller, some batteries for connecting the controller and the load for connecting the controller；
The ups system is the battery charging using dc source；The ups system is load supplying using batteries；
The controller is provided with electrical energy inputs, signal end, test side, some battery terminal connections and load connection end；The ups system
In be provided with some cell stations, the cell station is used to place the battery；The cell station and the controller
Battery terminal connections correspondence；The controller inside includes DSP module, positive electrode bus, negative electrode bus and some power energy monitoring and controlling moulds
Block；The power energy monitoring and controlling module includes ups system intellectuality charge-discharge circuit, connects the ups system intellectuality discharge and recharge electricity
The drive circuit on road, the current sample module and voltage sample module that connect the ups system intellectuality charge-discharge circuit, it is described
Ups system intellectuality charge-discharge circuit is provided with anode connection terminal, energy storage end, adjustable side and shorted end；The ups system is intelligent
The energy storage end of charge-discharge circuit is connected with the positive pole of the battery；The communication unit is to the DSP module in the controller
Some Battery pack characteristic parameters in series are transmitted, per Battery pack characteristic parameters in series with the cell station and the ups system intelligence
Charge-discharge circuit one-to-one corresponding can be changed.
2. ups system according to claim 1, it is characterised in that the ups system intellectuality charge-discharge circuit includes electricity
Hold C1, switching tube Q1, Q2 and inductance L1；Switching tube Q1, Q2 are provided with the first connection end, the second connection end and the 3rd connection end.
3. ups system according to claim 2, it is characterised in that described switching tube Q1, Q2 are the electricity with internal diode
Power transistor, first connection end of described switching tube Q1, Q2 is colelctor electrode, and second connection end of described switching tube Q1, Q2 is to penetrate
Pole, the 3rd connection end of described switching tube Q1, Q2 is base stage；The colelctor electrode of the switching tube Q1 connects with one end of the electric capacity C1
Connect；The emitter-base bandgap grading of the switching tube Q1 is connected with the colelctor electrode of the switching tube Q2；The emitter-base bandgap grading of the switching tube Q2 and the electric capacity
The other end connection of C1；The emitter-base bandgap grading of the switching tube Q2 is also connected with the negative electrode bus；The emitter-base bandgap grading of the switching tube Q1 also with
One end connection of the inductance L1.
4. ups system according to claim 1, it is characterised in that the DSP module receives described from the communication unit
After battery behavior parameters in series, the DSP module adjusts the ups system intellectuality and fills according to the battery behavior parameters in series
Discharge circuit working characteristics.
5. ups system according to claim 4, it is characterised in that when the ups system is the storage using dc source
When battery pack charges, the DSP module adjusts the ups system intellectuality discharge and recharge electricity according to the battery behavior parameters in series
The energy storage terminal voltage on road；When the ups system is load supplying using batteries, the DSP module is according to the ups system
The energy storage terminal voltage of intelligent charge-discharge circuit judges whether to need the corresponding ups system intellectuality charge-discharge circuit of order to stop
Work.
6. ups system according to claim 4, it is characterised in that when the ups system is the storage using dc source
When battery pack charges, the ups system can implement synchronous charging pattern or packet charge mode for each batteries；
Under the synchronous charging pattern, the DSP module and ups system intellectuality charge-discharge circuit are according to the battery behavior system
Row parameter distributes by each batteries the electric current in positive electrode bus；In the case where charge mode is grouped, the DSP module root
According to the electric current that battery behavior parameters in series adjustment passes through the energy storage end of the corresponding ups system intellectuality charge-discharge circuit.
7. ups system according to claim 4, it is characterised in that when the ups system using batteries for load is supplied
When electric, the ups system can implement synchronous discharge pattern or packet discharge mode for each batteries；In synchronous discharge
Under pattern, the DSP module is according to all of each ups system intellectuality discharge and recharge of battery behavior parameters in series adjustment
The energy storage end of circuit by size of current relation；In the case where discharge mode is grouped, the DSP module is according to the battery behavior system
The energy storage end of the corresponding ups system intellectuality charge-discharge circuit of row parameter adjustment by electric current.
8. a kind of ups system intellectuality charge-discharge circuit, for realizing transformation of electrical energy in ups system, the ups system is provided with
Controller, batteries, some ups system intellectuality charge-discharge circuits are arranged in the controller, and the controller is also wrapped
Include DSP module, positive electrode bus, negative electrode bus, current sample module and voltage sample module, it is characterised in that the ups system
Intelligent charge-discharge circuit includes electric capacity C1, switching tube Q1, Q2 and inductance L1；Switching tube Q1, Q2 are provided with the first connection end, second
Connection end and the 3rd connection end.
9. ups system according to claim 8 intellectuality charge-discharge circuit, it is characterised in that one end of the electric capacity C1
It is connected with the positive electrode bus；First connection end of the switching tube Q1 is connected with one end of the electric capacity C1；The switching tube
Second connection end of Q1 is connected with first connection end of the switching tube Q2；Second connection end of the switching tube Q2 and the electricity
Hold the other end connection of C1；Second connection end of the switching tube Q2 is also connected with the negative electrode bus；The switching tube Q1's
The one end of second connection end also with the inductance L1 is connected；The other end of the inductance L1 connects with the positive pole of the batteries
Connect.
10. ups system according to claim 9 intellectuality charge-discharge circuit, it is characterised in that described switching tube Q1, Q2
It is the power transistor with internal diode, first connection end of described switching tube Q1, Q2 is colelctor electrode, the switching tube Q1,
Second connection end of Q2 is emitter-base bandgap grading, and the 3rd connection end of described switching tube Q1, Q2 is base stage；The colelctor electrode of the switching tube Q1 with
One end connection of the electric capacity C1；The emitter-base bandgap grading of the switching tube Q1 is connected with the colelctor electrode of the switching tube Q2；The switching tube
The emitter-base bandgap grading of Q2 is connected with the other end of the electric capacity C1；The emitter-base bandgap grading of the switching tube Q2 is also connected with the negative electrode bus；It is described
The one end of the emitter-base bandgap grading of switching tube Q1 also with the inductance L1 is connected.
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| CN106849259B (en) | 2019-04-02 |
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