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CN106849259B - UPS system and intelligent charging and discharging circuit thereof - Google Patents

UPS system and intelligent charging and discharging circuit thereof Download PDF

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Publication number
CN106849259B
CN106849259B CN201710153816.1A CN201710153816A CN106849259B CN 106849259 B CN106849259 B CN 106849259B CN 201710153816 A CN201710153816 A CN 201710153816A CN 106849259 B CN106849259 B CN 106849259B
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CN
China
Prior art keywords
ups system
battery
charging
discharging circuit
intelligent charging
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Application number
CN201710153816.1A
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Chinese (zh)
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CN106849259A (en
Inventor
裴少华
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East Group Co Ltd
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East Group Co Ltd
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Priority to CN201710153816.1A priority Critical patent/CN106849259B/en
Publication of CN106849259A publication Critical patent/CN106849259A/en
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Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to a UPS system and an intelligent charging and discharging circuit thereof, which are used for providing electric energy conversion in the UPS system so as to realize the charging and discharging of a storage battery pack in the UPS system, wherein the UPS system comprises a direct-current power supply, a controller, a communication unit, a plurality of storage battery packs and a load; the controller internally comprises a DSP module, a positive bus, a negative bus and an electric energy monitoring module; the electric energy monitoring module comprises an intelligent charging and discharging circuit of the UPS system, a driving circuit, a current sampling module and a voltage sampling module; the intelligent charging and discharging circuit of the UPS system is characterized by being provided with a positive connecting end, an energy storage end, an adjusting end and a short-circuit end; the intelligent charging and discharging circuit of the UPS system comprises a capacitor C1, switching tubes Q1, Q2 and an inductor L1; the UPS system and the intelligent charging and discharging circuit of the UPS system enable a plurality of groups of storage batteries with different specifications in the UPS system to be charged and discharged simultaneously, and avoid the influence of abnormal storage battery groups on the charging and discharging of other storage battery groups.

Description

Ups system and its ups system intelligence charge-discharge circuit
Technical field
The present invention relates to UPS charging circuit field, espespecially a kind of ups system and its ups system intelligence charge-discharge circuit.
Background technique
In the application of high power UPS system, persistently to provide stable power supply, general preparation time when guaranteeing city's electrical anomaly It is longer, also mean that battery group is more.In entire 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, has to battery group and explicitly want Ask: different manufacturers, different capabilities, different model, the battery group of different times forbid it is used in parallel, because of multiple battery groups When charged in parallel, if any one battery cell is abnormal, the voltage of other battery groups will can not be charged by clamper, more When a battery group parallel discharge, every group of battery pack may be discharged by other battery groups diversified in specifications；And battery is most Multi-parallel group number does not exceed 4 groups.This means that the replacement of power-supply system battery group is often batch replacement, cause much to have Effect battery can not utilize, and cause great economic loss.
Summary of the invention
Based on this, the present invention provide a kind of ups system that can allow the battery of multiple groups different size that can work at the same time and its Ups system intelligence charge-discharge circuit.
In order to achieve the object of the present invention, the invention adopts the following technical scheme:
A kind of ups system and its ups system intelligence charge-discharge circuit, for providing electric energy conversion in ups system, with Realize the charge and discharge of the battery group in ups system, which includes the control of DC power supply, the connection DC power supply If the communication unit of device, the connection controller connects the dry battery group of the controller and connects the negative of the controller It carries；The controller is equipped with electrical energy inputs, signal end, test side, several battery terminal connections and load connecting pin；The UPS Several cell stations are equipped in system, the cell station is for placing the battery；The cell station and the control The battery terminal connections of device are corresponding；It include DSP module, positive electrode bus, negative electrode bus and power energy monitoring and controlling mould inside the controller Block；The power energy monitoring and controlling module includes ups system intelligence charge-discharge circuit, the connection ups system intelligence charge and discharge electricity The driving circuit on road, the current sampling module and voltage sample module for connecting the ups system intelligence charge-discharge circuit；It is special Sign is that the ups system intelligence charge-discharge circuit is equipped with anode connection terminal, energy storage end, adjustable side and shorted end；It is described Battery terminal connections of the energy storage end of ups system intelligence charge-discharge circuit as the controller；The ups system intelligence is filled The anode connection terminal of discharge circuit is connect with the positive electrode bus；The energy storage end of the ups system intelligence charge-discharge circuit with The anode connection of the battery group.
Ups system and its ups system intelligence charge-discharge circuit of the invention is by for each battery in ups system Corresponding ups system intelligence charge-discharge circuit is arranged in group, enables the battery energy of the multiple groups different size in ups system can be simultaneously Charge and discharge avoid abnormal battery group and impact to the charge and discharge of other battery groups, also avoid battery group and pass through Other battery group electric discharges；Meanwhile by the control to the ups system intelligence charge-discharge circuit, enable each in ups system Battery group can carry out charge and discharge under given voltage or electric current, and each battery group can be carried out the charge and discharge sides such as synchronous or grouping Formula.
The ups system intelligence charge-discharge circuit includes capacitor C1, switching tube Q1, Q2 in one of the embodiments, And inductance L1；Described switching tube Q1, Q2 are equipped with the first connecting pin, second connection end and third connecting pin；The one of the capacitor C1 Hold the anode connection terminal as the ups system intelligence charge-discharge circuit；One end of the capacitor C1 and the positive electrode bus Connection；The first connecting pin of the switching tube Q1 is connect with one end of the capacitor C1；The second connection end of the switching tube Q1 It is connect with the first connecting pin of the switching tube Q2；The other end of the second connection end of the switching tube Q2 and the capacitor C1 connect It connects；The second connection end of the switching tube Q2 is also connect with the negative electrode bus；The second connection end of the switching tube Q1 also with One end of the inductance L1 connects；Energy storage of the other end of the inductance L1 as the ups system intelligence charge-discharge circuit End；The other end of the inductance L1 is connect with the anode of the battery.
Described switching tube Q1, Q2 are the power transistor with internal diode, the switch in one of the embodiments, The first connecting pin of pipe Q1, Q2 are collector, and the second connection end of described switching tube Q1, Q2 are emitter-base bandgap grading, described switching tube Q1, Q2 Third connecting pin be base stage；The collector of the switching tube Q1 is connect with one end of the capacitor C1；The switching tube Q1's Emitter-base bandgap grading is connect with the collector of the switching tube Q2；The emitter-base bandgap grading of the switching tube Q2 is connect with the other end of the capacitor C1；Institute The emitter-base bandgap grading for stating switching tube Q2 is also connect with the negative electrode bus；The emitter-base bandgap grading of the switching tube Q1 also connects with one end of the inductance L1 It connects.
The communication unit is several to the DSP module transmission into the controller in one of the embodiments, Group battery behavior parameters in series；Every group of battery behavior parameters in series is corresponding with a cell station；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。
In one of the embodiments, the driving circuit with it is described in the ups system intelligence charge-discharge circuit Switching tube Q1, Q2 connection；The driving circuit issues the first pulse signal and the second pulse letter to described switching tube Q1, Q2 respectively Number；First pulse signal and the second pulse signal control the on off operating mode of described switching tube Q1, Q2 respectively.
The ups system is that the battery group is filled using the electric energy of the DC power supply in one of the embodiments, When electric, the ups system intelligence charge-discharge circuit has charging accumulation of energy process and charging two kinds of working conditions of exoergic process；Institute During stating charging accumulation of energy, the switching tube Q1 is open-minded, the switching tube Q2 shutdown；It is described in the charging exoergic process Switching tube Q1 shutdown, the switching tube Q2 shutdown；The ups system intelligence charge-discharge circuit plays antihypertensive effect.
The ups system is that the load mentions using the storing energy of the battery group in one of the embodiments, When for electric energy, the ups system intelligence charge-discharge circuit has electric discharge accumulation of energy process and electric discharge two kinds of working conditions of exoergic process； During discharging accumulation of energy, the switching tube Q1 is turned off, and the switching tube Q2 is open-minded；It is described in the electric discharge exoergic process Switching tube Q1 shutdown, the switching tube Q2 shutdown；The ups system intelligence charge-discharge circuit raising voltage effect.
It is transmitted in one of the embodiments, by the communication unit to the DSP module into the controller It is the electric power storage when being in the ups system using the electric energy of the DC power supply after the corresponding battery behavior parameters in series When under the group charged state of pond, the DSP module adjusts the UPS system by controlling each corresponding driving circuit of the cell station The intelligent charge-discharge circuit of system, the voltage for enabling battery group both ends and the charging voltage in the battery behavior parameters in series VBNIt is close or consistent；It is described when the ups system provides electricity using the storing energy of the battery group for the load DSP module is by the voltage at battery group both ends described in the voltage sample module samples, but the electricity at battery group both ends Force down the cut-off protection voltage V in the battery behavior parameters in seriesPNWhen, the DSP module keeps the battery group corresponding The driving circuit stop output the first pulse signal and the second pulse signal, enable the battery group stop output electric current.
It is in one of the embodiments, the electric power storage when utilizing the electric energy of the DC power supply in the ups system When the group charged state of pond, synchronous charging and grouping two kinds of charge modes of charging are can be used in each battery group；In synchronous charging Under mode, the DSP module is according to the rated capacity C in each battery group accordingly the battery behavior parameters in seriesN Size distributes the electric current exported by the DC power supply, and the DSP module adjusts each UPS system by the driving circuit The working condition of the intelligent charge-discharge circuit of system, enables the actual charge current size and its rated capacity for passing through the battery group Size is directly proportional；In the case where being grouped charge mode, the battery behavior is serial accordingly according to the battery group for the DSP module Restriction charging current I in parameterBN, the work of the ups system intelligence charge-discharge circuit is adjusted by the driving circuit State is enabled through the restriction charging electricity in the actual charge current size of the battery group and the battery behavior parameters in series Flow IBNIt is close or consistent.
It is in one of the embodiments, the load using the storing energy of the battery group when the ups system When providing electric energy, synchronous discharge and grouping two kinds of discharge modes of electric discharge are can be used in each battery group；In synchronous discharge mode Under, the DSP module is according to the rated capacity C in each battery group accordingly the battery behavior parameters in seriesN's Size adjusts the working condition of each ups system intelligence charge-discharge circuit by the driving circuit, enables and passes through the storage The actual discharge size of current and its rated capacity C of battery packNSize is directly proportional；In the case where being grouped discharge mode, the DSP module According to the restriction discharge current I in the battery group accordingly the battery behavior parameters in seriesPN, pass through the driving circuit The working condition of the ups system intelligence charge-discharge circuit is adjusted, is enabled big by the actual discharge electric current of the battery group The small restriction charging current I with the battery behavior parameters in seriesBNIt is close or consistent.
Detailed description of the invention
Fig. 1 is the structure chart for setting the ups system being related to of the invention；
Fig. 2 is the internal structure chart of the controller in ups system shown in FIG. 1；
Fig. 3 is the circuit diagram of the ups system intelligence charge-discharge circuit in controller shown in Fig. 2.
Specific embodiment
It to facilitate the understanding of the present invention, below will be to invention is more fully described.But the present invention can be to be permitted Mostly different form is realized, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes It is more thorough and comprehensive to the understanding of the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Referring to Fig. 1, being the structure chart of ups system according to the present invention, which includes DC power supply 10, connects Connect the storage of the controller 20 of the DC power supply 10, the communication unit 30 of the connection controller 20, the connection controller 20 The load 50 of battery pack 40 and the connection controller 20.Several cell stations 41 are equipped in the ups system；The battery work Position 41 is for placing the battery group 40；The ups system can be the battery using the electric energy of the DC power supply 10 40 charging of group；The ups system can be 50 power supply of load using the energy in the battery group 40；The ups system Electric energy using the DC power supply 10 is 50 power supply of load.The DC power supply 10 includes positive output end and negative output End；The controller 20 for realizing DC voltage conversion；The DC power supply 10 is equipped with positive output end and negative output terminal；Institute Controller 20 is stated equipped with electrical energy inputs, signal end, test side, several battery terminal connections and load connecting pin；The load 50 Equipped with positive input terminal and negative input end；The positive output end of the electrical energy inputs of the controller 20 and the DC power supply 10 connects It connects；The signal end of the controller 20 is connect with the communication unit 30；The test side of the controller 20 and the direct current The negative output terminal in source 10 connects；The battery terminal connections are corresponding with the cell station 41；The battery of the controller 20 connects It holds and is connect with the anode of the battery group 40 in the corresponding cell station 41；The cathode of the battery group 40 with it is described The negative output terminal of DC power supply 10 connects；The positive input terminal of the load 50 is connect with the load connecting pin of the controller 20； The negative input end of the load 50 is connect with the negative output terminal of the DC power supply 10.
Referring to Fig. 2, the controller 20 includes DSP module for the internal structure chart of the controller 20 in ups system 60, positive electrode bus 70, negative electrode bus 80 and several power energy monitoring and controlling modules 90；One end of the positive electrode bus 70 is as the control The electrical energy inputs of device 20；Load connecting pin of the other end of the positive electrode bus 70 as the controller 20；The cathode Test side of the one end of bus 80 as the controller 20；The DSP module 60 by the signal end of the controller 20 with The communication unit 30 connects；The power energy monitoring and controlling module 90 is including described in ups system intelligence charge-discharge circuit 91, connection The driving circuit 92 of ups system intelligence charge-discharge circuit 91, the electric current for connecting the ups system intelligence charge-discharge circuit 91 Sampling module 93 and voltage sample module 94；
The ups system intelligence charge-discharge circuit 91 is equipped with anode connection terminal, energy storage end, adjustable side and shorted end；Institute The anode connection terminal for stating ups system intelligence charge-discharge circuit 91 is connect with the positive electrode bus 70；The ups system is intelligent Battery terminal connections of the energy storage end of charge-discharge circuit 91 as the controller 20；The ups system intelligence charge-discharge circuit 91 shorted end is connect with the negative electrode bus 80；The driving circuit 92 and the ups system intelligence charge-discharge circuit 91 Adjustable side connection；The driving circuit 92 is also connect with the DSP module 60；One end of the current sampling module 93 connects The energy storage end of the ups system intelligence charge-discharge circuit 91；The other end of the current sampling 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 intelligence charge-discharge circuit 91；It is described Voltage sample module 94 is also connect with the negative electrode bus 80；The voltage sample module 94 is also connect with the DSP module 60； The power energy monitoring and controlling module 90 is corresponded with the cell station 41.
Referring to Fig. 3, being the circuit diagram of the ups system intelligence charge-discharge circuit 91.The ups system intelligence is filled Discharge circuit 91 includes capacitor C1, switching tube Q1, Q2 and inductance L1；One end of the capacitor C1 is as the ups system intelligence Change the anode connection terminal of charge-discharge circuit 91；One end of the capacitor C1 is connect with the positive electrode bus 70；The switching tube Q1, Q2 is respectively provided with the first connecting pin, second connection end and third connecting pin；In a kind of wherein embodiment, described switching tube Q1, Q2 For the power transistor with internal diode, the first connecting pin of described switching tube Q1, Q2 are collector, the switching tube Q1, The second connection end of Q2 is emitter-base bandgap grading, and the third connecting pin of described switching tube Q1, Q2 are base stage；The collector of the switching tube Q1 with One end of the capacitor C1 connects；The emitter-base bandgap grading of the switching tube Q1 is connect with the collector of the switching tube Q2；The switching tube The emitter-base bandgap grading of Q2 is connect with the other end of the capacitor C1；The emitter-base bandgap grading of the switching tube Q2 is also connect with the negative electrode bus 80；Institute The emitter-base bandgap grading for stating switching tube Q1 is also connect with one end of the inductance L1；The base stage of described switching tube Q1, Q2 are respectively as the UPS The adjustable side of system intelligent charge-discharge circuit 91；The other end of the inductance L1 is as the ups system intelligence charge and discharge The energy storage end of circuit 91；The other end of the inductance L1 is connect with the anode of the battery.
The voltage sample module 94 is used to sample the battery group being installed in the corresponding battery station 41 Voltage V between 40 positive electrode and negative electrodeBAnd it is fed back to the DSP module 60；The current sampling module 93 is installed on for sampling The electric current of the battery group 40 in the corresponding cell station 41 is simultaneously fed back to the DSP module 60；The DSP module 60 Control command is transmitted to the driving circuit 92；The driving circuit 92 generates phase according to the control command of the DSP module 60 The first pulse signal and the second pulse signal answered；First pulse signal generates accordingly for controlling the switching tube Q1 On-off switching；Second pulse signal generates corresponding on-off switching for controlling the switching tube Q2.
The communication unit 30 transmits several groups battery behavior series ginseng for the DSP module 60 into 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 by managing the battery implementation in the corresponding electric power storage group station independently to the DSP module 60 cooperation.
When the ups system is charged using the electric energy of the DC power supply 10 for the battery group 40, the ups system The period of the on-off conversion of switching tube Q1, Q2 of intelligent charge-discharge circuit 91 is charging make and break period；The switching tube The charging make and break period of Q1, Q2 are divided into charging accumulation of energy process and charging exoergic process；It is described to open during the charging accumulation of energy It is open-minded to close pipe Q1, the switching tube Q2 shutdown is described due to the Voltage unbalance between DC power supply 10 and the battery group 40 Electric current is generated on inductance L1 and the size of the electric current is cumulative, while being generated on the inductance L1 consistent with voltage direction on battery Voltage, the storage consistent with the builtin voltage direction of the battery group 40 by the current direction of the battery group 40 Battery pack 40 does negative work, and the storing energy of the battery group 40 is enabled to be promoted；Described fill is converted to from the charging accumulation of energy process After electric exoergic process, the switching tube Q1 shutdown, the switching tube Q2 is turned off, and the electric current in the inductance L1 passes through the switch The internal diode continuousing flow of Q2 passes through the builtin voltage of the current direction of the battery group 40 and the battery group 40 at this time Direction is consistent, and the battery group 40 does negative work, continues to lift up the storing energy of battery group 40；The ups system intelligence Change charge-discharge circuit 91 in charging make and break period, the voltage that 40 both ends of battery group are born is less than the DC power supply 10 Output voltage, the ups system intelligence charge-discharge circuit 91 plays antihypertensive effect.
The DSP module 60 will sample the voltage V at 40 both ends of battery group by voltage sample module 94BWith from The charging voltage V in the battery behavior parameters in series that the communication unit 30 obtainsBNIt is compared, the DSP module 60 The first pulse signal caused by the driving circuit 92 and the second pulse signal are adjusted by control command according to comparison result； The variation of first pulse signal and the second pulse signal enables the charging in the charging make and break period of the switching tube Q1 and Q2 Accumulation of energy process and charge exoergic process time scale adjust, make the battery group 40 during the charging process, electric power storage The voltage V at 40 both ends of pond groupBWith given charging voltage VBNIt is close or consistent.
In the battery group 40 charging, there are two types of charge modes, including synchronous charging mode and grouping charge mode； Under the synchronous charging mode, the DSP module 60 is according to the rated capacity C of each battery group 40NIt accounts for all described The rated capacity C of battery group 40NThe sum of pro rate described in DC power supply 10 export electric current；The DSP module 60 is logical The working condition that the driving circuit 92 adjusts the corresponding ups system intelligence charge-discharge circuit 91 is crossed, is enabled from described straight The electric current of 10 anode outflow of galvanic electricity source presses the rated capacity C of each battery group 40NSize is diverted through each battery Group 40；Under the grouping charge mode, the DSP module 60 will be sampled by current sampling module 93 through the electric power storage 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 obtainsBNIt carries out Compare, the DSP module 60 adjusts the first pulse caused by the driving circuit 92 by control command according to comparison result Signal and the second pulse signal；The variation of first pulse signal and the second pulse signal enables filling for the switching tube Q1 and Q2 The time scale of charging accumulation of energy process and the exoergic process that charges in electric make and break period adjusts, and makes in the battery group 40 During the charging process, pass through the electric current I at 40 both ends of battery groupBWith given restriction charging current IBNIt is close or consistent.
It is described when it is that the load 50 provides electric energy that the ups system is using the storing energy of the battery group 40 The process that an on-off of switching tube Q1, Q2 of ups system intelligence charge-discharge circuit 91 are converted 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 shutdown, the switching tube Q2 is open-minded, and the battery group 40 and inductance L1 is individually formed circuit, Electric current is generated on the inductance L1 and the size of the electric current is cumulative, the voltage at the both ends the inductance L1 and the battery group 40 Voltage direction is opposite；After the electric discharge exoergic process is converted to from the electric discharge accumulation of energy process, the switching tube Q1 shutdown is described Switching tube Q2 shutdown, the electric current of the inductance L1 pass through the internal diode continuousing flow of the switching tube Q1, pass through the electricity at this time Feel the electric current decline of L1, the voltage at the both ends the inductance L1 is consistent with the voltage direction of the battery group 40, enables the load Voltage between 50 positive input terminal and negative input end is greater than the voltage at 40 both ends of battery group, and the ups system is intelligent Charge-discharge circuit 91 plays boosting.
It is described when it is that the load 50 provides electric energy that the ups system is using the storing energy of the battery group 40 Voltage sample module 94 samples the voltage V at 40 both ends of battery groupBAnd it is fed back to the DSP module 60；The DSP module 60 by the voltage V at 40 both ends of battery groupBVoltage V is protected with the cut-off in the battery behavior parameters in seriesPNCompared Compared with as the voltage V at 40 both ends of battery groupBVoltage V is protected less than the cut-off in the battery behavior parameters in seriesPNWhen, The DSP module 60 enables the driving circuit 92 stop generating the first pulse signal and the second pulse signal, the switching tube Q1, Q2 is held off, and the battery group 40 of undertension stops output energy.
In the battery group 40 electric discharge, there are two types of 40 discharge mode of battery group, including synchronous discharge mode and point Group discharge mode；Under the synchronous discharge mode, the DSP module 60 is according to the rated capacity C of each battery group 40N Account for the rated capacity C of all battery groups 40NRatio adjust the corresponding ups system intelligence charge-discharge circuit 91 Working condition, enable the size and its rated capacity C of the electric current exported from a battery group 40NIn all batteries The rated capacity C of group 40NThe sum of in accounting it is directly proportional；Under the grouping charge mode, the DSP module 60 will pass through electricity Stream sampling module 93 samples the electric current I by the battery group 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 comparison result Adjust the first pulse signal caused by the driving circuit 92 and the second pulse signal；First pulse signal and the second arteries and veins Rush signal variation enable described switching tube Q1, Q2 charging make and break period in electric discharge accumulation of energy process and discharge exoergic process when Between ratio adjust, make the battery group 40 during the charging process, pass through the electric current I of the battery group 40BWith institute State the corresponding restriction charging current I of battery group 40PNIt is close or consistent.
The battery group 40 in each cell station 41 can single group or multiple groups charge simultaneously；The UPS system Each battery that system in 40 charging process of battery group, need to be charged using the electric energy of the DC power supply 10 Group 40 can charge under synchronous charging mode or grouping charge mode, when switching tube Q1 is connected, due to the direct current Source 10 is in series with inductance L1 between the battery group 40 respectively, even if in the situation of 40 monomer of a battery group exception Under, since the both ends the inductance L1 are there are pressure drop, the voltage of the positive electrode bus 70 the abnormal battery will not be occurred 40 clampers of group, other battery groups 40 can continue to charge normal.
The battery group 40 in each cell station 41 can single group or multiple groups discharge simultaneously；The UPS system System is during the load 50 provides electric energy using the storing energy of the battery group 40, and what need to be discharged is each described Battery group 40 can discharge under synchronous discharge mode or grouping discharge mode, when switching tube Q1 is connected, the electric power storage It include inductance L1 in the circuit of pond group 40 and other battery groups 40, even if in the feelings of 40 monomer of the battery group exception Under condition, the voltage of the positive electrode bus 70 abnormal 40 clampers of the battery group, other batteries will not be occurred Group 40 can continue regular picture.
During the ups system provides electricity using the storing energy of the battery group 40 for the load 50, It, can by adjusting the time of the electric discharge accumulation of energy process and exoergic process of discharging in the case where the battery pack needs to discharge Make after the switching tube Q1 is connected, the anode connection voltage of each ups system intelligence charge-discharge circuit is close, avoids the storage Battery pack 40 forms discharge loop by other battery groups 40；If the corresponding ups system intelligence of the battery group 40 The switching tube Q1 shutdown in the ups system intelligence charge-discharge circuit 91 after charge-discharge circuit 91 stops working can be changed, due to The cathode of the internal diode of the switching tube Q1 is connect with the positive electrode bus 70, and other battery groups 40 can not pass through The battery group 40 that corresponding ups system intelligence charge-discharge circuit 91 stops working forms discharge loop.
Ups system and its ups system intelligence charge-discharge circuit of the invention is by for each battery in ups system Corresponding ups system intelligence charge-discharge circuit is arranged in group, enables the battery energy of the multiple groups different size in ups system can be simultaneously Charge and discharge avoid abnormal battery group and impact to the charge and discharge of other battery groups, also avoid battery group and pass through Other battery group electric discharges.Meanwhile by the control to the ups system intelligence charge-discharge circuit, enable each in ups system Battery group can carry out charge and discharge under given voltage or electric current, and each battery group can be carried out the charge and discharge sides such as synchronous or grouping Formula.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies 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, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (7)

1.一种UPS系统，其特征在于，该UPS系统包括直流电源、连接所述直流电源的控制器、连接所述控制器的通讯单元、连接所述控制器的若干蓄电池组及连接所述控制器的负载；所述UPS系统利用直流电源为所述蓄电池组充电；所述UPS系统利用蓄电池组为负载供电；所述控制器设有电能输入端、信号端、检测端、若干电池连接端及负载连接端；所述UPS系统中设有若干电池工位，所述电池工位用于放置所述蓄电池；所述电池工位与所述控制器的电池连接端对应；所述控制器内部包括DSP模块、正极母线、负极母线、及若干电能监控模块；所述电能监控模块包括UPS系统智能化充放电电路、连接所述UPS系统智能化充放电电路的驱动电路、连接所述UPS系统智能化充放电电路的电流采样模块及电压采样模块，所述UPS系统智能化充放电电路设有正极连接端、储能端、调节端及短接端；所述UPS系统智能化充放电电路的储能端与所述蓄电池的正极连接；所述通讯单元向所述控制器中的DSP模块传输若干组电池特性系列参数，每组电池特性系列参数与所述电池工位及所述UPS系统智能化充放电电路一一对应。1. A UPS system, characterized in that the UPS system comprises a DC power supply, a controller connected to the DC power supply, a communication unit connected to the controller, several battery packs connected to the controller, and a controller connected to the controller. The UPS system uses the DC power supply to charge the battery pack; the UPS system uses the battery pack to supply power for the load; the controller is provided with a power input terminal, a signal terminal, a detection terminal, a number of battery connection terminals and a load connection end; the UPS system is provided with a number of battery stations, the battery stations are used to place the battery; the battery stations correspond to the battery connection ends of the controller; the controller includes DSP module, positive bus, negative bus, and several power monitoring modules; the power monitoring module includes an intelligent charging and discharging circuit of the UPS system, a drive circuit connected to the intelligent charging and discharging circuit of the UPS system, and an intelligent charging and discharging circuit connected to the UPS system. The current sampling module and the voltage sampling module of the charging and discharging circuit, the intelligent charging and discharging circuit of the UPS system is provided with a positive connection terminal, an energy storage terminal, a regulating terminal and a shorting terminal; the energy storage of the intelligent charging and discharging circuit of the UPS system The terminal is connected to the positive pole of the battery; the communication unit transmits several groups of battery characteristic series parameters to the DSP module in the controller, each group of battery characteristic series parameters is related to the battery station and the UPS system intelligent charging The discharge circuits correspond one-to-one. 2.根据权利要求1所述的UPS系统，其特征在于，所述UPS系统智能化充放电电路包括电容C1、开关管Q1、Q2及电感L1；开关管Q1、Q2设有第一连接端、第二连接端及第三连接端。2. The UPS system according to claim 1, wherein the intelligent charging and discharging circuit of the UPS system comprises a capacitor C1, switch tubes Q1, Q2 and an inductance L1; the switch tubes Q1, Q2 are provided with a first connection end, The second connection end and the third connection end. 3.根据权利要求2所述的UPS系统，其特征在于，所述开关管Q1、Q2为带体内二极管的电力晶体管，所述开关管Q1、Q2的第一连接端为集电极，所述开关管Q1、Q2的第二连接端为射极，所述开关管Q1、Q2的第三连接端为基极；所述开关管Q1的集电极与所述电容C1的一端连接；所述开关管Q1的射极与所述开关管Q2的集电极连接；所述开关管Q2的射极与所述电容C1的另一端连接；所述开关管Q2的射极还与所述负极母线连接；所述开关管Q1的射极还与所述电感L1的一端连接。3 . The UPS system according to claim 2 , wherein the switch tubes Q1 and Q2 are power transistors with internal diodes, the first connection ends of the switch tubes Q1 and Q2 are collectors, and the switches The second connection ends of the transistors Q1 and Q2 are the emitters, and the third connection ends of the switch transistors Q1 and Q2 are the base electrodes; the collector of the switch transistor Q1 is connected to one end of the capacitor C1; the switch transistor The emitter of Q1 is connected to the collector of the switch tube Q2; the emitter of the switch tube Q2 is connected to the other end of the capacitor C1; the emitter of the switch tube Q2 is also connected to the negative bus bar; The emitter of the switch transistor Q1 is also connected to one end of the inductor L1. 4.根据权利要求1所述的UPS系统，其特征在于，所述DSP模块从所述通讯单元接收所述电池特性系列参数后，所述DSP模块根据所述电池特性系列参数调整所述UPS系统智能化充放电电路工作特性。4. The UPS system according to claim 1, wherein after the DSP module receives the battery characteristic series parameters from the communication unit, the DSP module adjusts the UPS system according to the battery characteristic series parameters Intelligent charging and discharging circuit working characteristics. 5.根据权利要求4所述的UPS系统，其特征在于，当所述UPS系统利用直流电源为所述蓄电池组充电时，所述DSP模块根据所述电池特性系列参数调整所述UPS系统智能化充放电电路的储能端电压；所述UPS系统利用蓄电池组为负载供电时，所述DSP模块根据所述UPS系统智能化充放电电路的储能端电压判断是否需要令相应所述UPS系统智能化充放电电路停止工作。5 . The UPS system according to claim 4 , wherein when the UPS system uses a DC power supply to charge the battery pack, the DSP module adjusts the intelligentization of the UPS system according to the battery characteristic series parameters. 6 . The energy storage terminal voltage of the charging and discharging circuit; when the UPS system uses the battery pack to supply power to the load, the DSP module determines whether it is necessary to make the corresponding UPS system intelligent according to the energy storage terminal voltage of the intelligent charging and discharging circuit of the UPS system. The chemical charging and discharging circuit stops working. 6.根据权利要求4所述的UPS系统，其特征在于，当所述UPS系统利用直流电源为所述蓄电池组充电时，所述UPS系统可为各所述蓄电池组实施同步充电模式或者分组充电模式；在所述同步充电模式下，所述DSP模块及所述UPS系统智能化充放电电路根据所述电池特性系列参数将正极母线上的电流分配通过各所述蓄电池组；在分组充电模式下，所述DSP模块根据所述电池特性系列参数调整通过相应所述UPS系统智能化充放电电路的储能端的电流。6 . The UPS system according to claim 4 , wherein when the UPS system uses a DC power supply to charge the battery packs, the UPS system can implement a synchronous charging mode or group charging for each of the battery packs. 7 . mode; in the synchronous charging mode, the DSP module and the intelligent charging and discharging circuit of the UPS system distribute the current on the positive bus through each of the battery packs according to the battery characteristic series parameters; in the group charging mode , the DSP module adjusts the current passing through the energy storage terminal of the corresponding intelligent charging and discharging circuit of the UPS system according to the battery characteristic series parameters. 7.根据权利要求4所述的UPS系统，其特征在于，当所述UPS系统利用蓄电池组为负载供电时，所述UPS系统可为各所述蓄电池组实施同步放电模式或者分组放电模式；在同步放电模式下，所述DSP模块根据所有的所述电池特性系列参数调整各所述UPS系统智能化充放电电路的储能端的通过电流大小关系；在分组放电模式下，所述DSP模块根据所述电池特性系列参数调整相应所述UPS系统智能化充放电电路的储能端的通过电流。7. The UPS system according to claim 4, characterized in that, when the UPS system uses battery packs to supply power to the load, the UPS system can implement a synchronous discharge mode or a group discharge mode for each of the battery packs; In the synchronous discharge mode, the DSP module adjusts the magnitude relationship of the passing current of the energy storage terminals of the intelligent charging and discharging circuits of each UPS system according to all the battery characteristic series parameters; in the grouping discharge mode, the DSP module adjusts according to the The battery characteristic series parameters adjust the passing current of the energy storage terminal corresponding to the intelligent charging and discharging circuit of the UPS system.
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