CN106300626B - A kind of double power-supply system of UPS, UPS equipment and its control method - Google Patents
A kind of double power-supply system of UPS, UPS equipment and its control method Download PDFInfo
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- CN106300626B CN106300626B CN201510254871.0A CN201510254871A CN106300626B CN 106300626 B CN106300626 B CN 106300626B CN 201510254871 A CN201510254871 A CN 201510254871A CN 106300626 B CN106300626 B CN 106300626B
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Abstract
The invention discloses the double power-supply system of UPS a kind of, UPS equipment and its control method, the double power-supply system of the UPS includes the first battery pack (4), the second battery pack (1), measure and control device (2) and logic interfacing (3)；First battery pack is secondary cell, is electrically connected the power input of logic interfacing (3) and the UPS；Second battery pack includes one-shot battery, is electrically connected the power input of measure and control device (2)；The output end of the measure and control device (2) is electrically connected first battery pack (4) or is electrically connected the first battery pack by logic interfacing (3)；The measure and control device can acquire, handle the real-time status signal of first battery pack, realize control the second battery pack (1) to the first battery pack (4) electric energy supplement in setting logic state.The UPS equipment contains at least a set of double power-supply system.The present invention effectively adapts to the equipment configratioin requirement of high-end UPS.
Description
Technical field
The present invention relates to the power supply design field of UPS, in particular to a kind of double power-supply system of UPS contains the dual power supply
The UPS equipment and its control method of system.
Background technique
The widely applied uninterruptible power supply in market, industry are often referred to simply as UPS (Uninterruptible Power
System/Uninterruptible Power Supply), be it is a kind of battery is connected with host, pass through host inversion
Direct current is converted into the system equipment of alternating current by the modular circuits such as device, is widely used in communication apparatus, single computer, computer
Network system or other power electronic equipments such as solenoid valve, pressure transmitter etc. provide for these installations and facilities and stablize, is uninterrupted
Power supply.When electric main input is normal, UPS is that the reserve battery charging of internal configuration (may be designed as alternating current is steady
It is supplied to load to use after pressure)；When commercial power interruption (forced outage), UPS by the direct current energy of battery, passes through inversion zero immediately
The square normal load of switching conversion continues to supply 220V alternating current, and load is made to maintain to work normally and protect the soft and hardware of load
It is not damaged.
UPS equipment is more and more important in the application status of modern society, and application technology is also constantly upgrading, such as UPS
Monitoring system, this kind of UPS monitoring system has become the important component of current middle and high end ups power system；UPS monitoring system
One exemplary applications of system are battery data logging devices, are a kind of real-time, perfect on-line checking to be carried out for power-supply system battery
With the device of management, wide technical application has been obtained at present.
In UPS equipment, a hard nut to crack is reserve battery configuration, by taking the ups power of communication equipment station as an example, is usually needed
Configure 500Ah battery pack, the large capacity demand can only almost select plumbic acid maintenance-free battery (following abbreviation lead battery again or
Lead-acid battery).Since lead is toxic metals, there is apparent environmental pollution in manufacture link in lead-acid battery again, in use and or
More or less evolution sulfuric acid mist corrodes peripheral equipment, and industry wishes to use other environment-friendly batteries instead for many years, such as attempts with lithium electricity
Pond substitutes plumbic acid maintenance-free battery；But no matter bypassing, lithium battery valence is high, safety coefficient is low, only large capacity demand one
Lithium battery is had little scope for one's talents, " high-capacity lithium battery " at this stage is by the mould of numerous " low capacity monomers " split in parallel
Block, when use, need to add complicated battery management system, once battery management system fails, because seriously imitating caused by overcharge
Fruit will be hardly imaginable.
Many industries such as communication equipment station require the battery capacity that UPS is configured increasing in recent years, such as require to match
1000Ah, 2000Ah even 3000-5000Ah are set, even if manufacturing 1000Ah for the lead-acid battery of suitable manufacture large capacity
The equipment requirement of the above high capacity cell can also rise sharply, and for the demand for coping with battery with ultra large capacity, mainly lean on currently on the market
The scheme for increasing number of batteries (such as parallel connection more than two) solves, but its that there are technology incomes is low, deployment cost is high lacks
It falls into；By taking the battery pack of communication equipment station UPS equipment configuration as an example, although Technical specifications require discharge time 10 hours, companion
It is implemented with the technological progress of power department and management measure, seldom there is a situation where power off more than 1 hour, thus much for alternating current
Application industry wish to seek to one kind the requirement not only met Technical specifications to battery capacity, it is practical in but also battery can be reduced
The technical solution of use cost.
Summary of the invention
The purpose of the present invention is to adapt to the requirement increasing to reserve battery capacity of existing UPS equipment, provides one kind
Power supply architecture is different from traditional single battery pack, is the scheme that UPS increases equipment task time by double power-supply system；Together
When, the implementation of technical solution of the present invention can make the industries such as communication equipment station meet Technical specifications to battery capacity requirement
Under the premise of, the buying use cost of reserve battery is effectively reduced.
To achieve the above object, the present invention provides the double power-supply system of UPS a kind of, the double power-supply system packets of the UPS
Include the first battery pack 4, the second battery pack 1, measure and control device 2 and logic interfacing 3；First battery pack is secondary cell, electricity
Connect the power input of logic interfacing (3) and the UPS；Second battery pack 1 includes one-shot battery, is electrically connected observing and controlling
The power input of device 2；The output end of the measure and control device 2 is electrically connected first battery pack 4 or by 3 electricity of logic interfacing
Connect the first battery pack 4；The signal input part of the measure and control device 2 connects the first battery pack 4 or by the connection of logic interfacing 3 the
One battery pack 4.The measure and control device 2 can acquire the real-time status signal of first battery pack 4, and handle signal,
Realize the second battery pack 1 of control to 4 electric energy supplement of the first battery pack in setting logic state.
The one-shot battery is the disposable battery without charging.
First battery pack 4 includes the secondary cell used that can arbitrarily charge repeatedly.
A kind of improvement as above-mentioned technical proposal, the measure and control device 2 include filtering protection module 2a, at signal acquisition
Manage module 2b and DC/DC charging module 2c；The signal acquisition process module 2b includes that voltage collection circuit and/or battery hold
Measure Acquisition Circuit；The DC/DC charging module 2c includes output voltage constant circuit and output current limit circuit.It is above-mentioned
Each discrete setting of module selective or shared integrated module realize its function.
Preferably, the discrete setting of DC/DC charging module 2c, power input are electrically connected the second battery pack 1, electricity
Source output terminal is electrically connected the first battery pack 4 of logic interfacing 3 or the ups power, signal input part connection signal acquisition process
Module 2b.
Preferably, the unlimited waveform of output electric current, frequency and the duty ratio of the DC/DC charging module.
Another improvement as above-mentioned technical proposal, the double power-supply system further includes voltage increase module 5；Voltage
Hoisting module 5 includes power output end, power input and signal input part, and power output end is electrically connected the second battery pack 1,
Its power input is electrically connected DC/DC charging module 2c, and signal input part connects measure and control device 2.In the dual power supply system
In system be arranged voltage increase module 5, be applied to second battery pack 1 voltage it is lower than 4 voltage of the first battery pack
Situation.
Preferably, the discrete setting of voltage increase module 5, part logic function or whole logic functions can integrate
In measure and control device 2.
Another improvement as above-mentioned technical proposal, the double power-supply system further includes capacitor 6, the capacitor 6
It is electrically connected with the input terminal of measure and control device 2 or/and output end parallel connection.
Preferably, second battery pack 1 further includes secondary cell or/and device for converting electric energy；The electric energy conversion
Device includes hydrogen storage device for converting electric energy, fuel electric generating apparatus, device of solar generating or wind electricity generating system.
Preferably, when second battery pack 1 selects secondary cell, the double power-supply system further includes supplement Denso
Set 7；Supplementing electric installation 7 includes power output end, power input and signal input part, the second electricity of power output end electrical connection
Pond group 1, power input are electrically connected logic interfacing 3 or first battery pack 4, and signal input part connects measure and control device
2.The setting supplement electric installation 7 in the double power-supply system is to be applied to (select secondary cell to second battery pack 1
In the case where) carry out supplement electricity；
The invention also discloses the UPS equipment for containing any of the above-described double power-supply system, the UPS equipment is at least arranged one
The set double power-supply system.UPS equipment of the present invention power supply containing there are two types of, first is that by conventional battery series and parallel group
At the first battery pack 4, second is that second battery pack 1, the dual power supply of two kinds of electric power generating compositions UPS equipment of the present invention is protected
Barrier, keeps the spare working time of UPS equipment of the present invention longer.
Preferably, in the UPS equipment, the measure and control device 2 inside the double power-supply system is independently arranged, and can also be incited somebody to action
The part logic function of measure and control device 2 or whole logic functions are integrated in the central control system of the UPS equipment.
The invention also discloses a kind of control method of the double power-supply system of aforementioned UPS, this method is by the measure and control device 2
Real-time status monitoring is carried out to first battery pack 4, and passes through second electricity of the control of measure and control device 2 under the logic state of setting
The electric discharge of pond group 1 is 4 electric energy supplement of the first battery pack.
Preferably, the measure and control device 2 is monitored the real-time voltage state of the first battery pack 4, when measure and control device 2 is supervised
When measuring the real-time voltage of the first battery pack 4 lower than set threshold values, control the second battery pack 1 electric discharge is the first battery pack 4
Electric energy supplement.
Preferably, the measure and control device 2 is monitored the real time capacity state of the first battery pack 4, when measure and control device 2 is supervised
When measuring the real time capacity of the first battery pack 4 lower than set threshold values, control the second battery pack 1 electric discharge is the first battery pack 4
Electric energy supplement.
It is furthermore preferred that the measure and control device 2 to the real-time voltage state and real time capacity state of the first battery pack 4 simultaneously into
Row monitoring, the real-time voltage or any monitor value of real time capacity for monitoring the first battery pack 4 when measure and control device 2 are lower than set
When threshold values, control the second battery pack 1 electric discharge is 4 electric energy supplement of the first battery pack.
The configurable conventional UPS equipment of the double power-supply system of UPS of the present invention uses, and when use substitutes double power-supply system normal
Advise the battery backup (being equivalent to the first battery pack 4 in double power-supply system of the present invention) in UPS equipment；When alternating current is disconnected
Electricity, the first battery pack 4 capacity consumption it is complete when, the second battery pack 1 is born as 4 electric energy supplement of the first battery pack, makes conventional UPS
The effect that equipment works on considerably increases the non-stop run time of conventional UPS equipment, it will be appreciated that is that conventional UPS is set
It is standby to provide a kind of " dual fail-safe battery pack ".
The present invention can also be fabricated to a kind of super UPS equipment matched of reserve battery capacity, be considered as and design base in conventional UPS equipment
The standby power system that a kind of super capacity has been selected on plinth, for replacing the single battery pack of conventional configuration UPS equipment；As before
Example is stated, the UPS at communication equipment station is rarely encountered there is a situation where powering off more than 1 hour, but Technical specifications require configuration
Battery capacity will reach discharge time 10 hours, thus considerably increase the buying use cost of battery, but thoroughly ensure
The safe operation of communication equipment station, and Technical specifications cannot be reduced to the capacity requirement of configuration battery group, the present invention is to solve
This existing contradiction, provide a kind of configuration battery group capacity not only met Technical specifications, it is practical in but also battery can be reduced
The technical solution of cost.In UPS equipment of the present invention containing double power-supply system, battery spare capacity is respectively derived from often
The first battery pack 4 and the second battery pack 1 of rule, such as can be designed as: the first battery pack 4 is conceived to reply in double power-supply system
The case where powering off 1 hour and design capacity, the second battery pack 1 be conceived to reply power-off 1 hour after situation and design enough 10
Hour or more discharge time capacity, due to the preferred one-shot battery of the second battery pack 1, and the price of one-shot battery is much than secondary
Battery is low, thus can substantially reduce the purchase cost and operation cost of communication equipment station ups power.
For the market demands that many industries such as communication equipment station are increasing to UPS configuration battery capacity, institute of the present invention
The double power-supply system of the UPS stated or the UPS equipment containing double power-supply system can meet market more easily and hold to battery
Amount increases the requirement matched；Because of certain types in one-shot battery, such as lead air cell, not only low cost, but also design technology
It is very suitable to the high capacity cell of magnitude when manufacture kilo-ampere, the present invention provides a kind of feasible skill to solve this kind of market demand
Art scheme is allowed to that more effective power supply guarantee can be achieved.
The preferred one-shot battery of the second battery pack 1 of double power-supply system of the present invention is based on one-shot battery technology in recent years
The status and prospect of development；Compared with secondary cell, the specific energy of one-shot battery is sufficiently high at this stage, readily satisfies described double
High requirement of the power-supply system to the second battery pack idle capacity, the one-shot battery such as zinc-air battery, aluminium air electricity
Pond etc.；Secondary cell also may be selected in second battery pack 1, and the secondary cell includes the use that can charge repeatedly after all electric discharges
Battery, such as lithium battery, lead battery, nickel-based battery and metal hydrogen storage battery etc., preferably specific energy is higher than first battery
The secondary cell of group 4 (usually using plumbic acid maintenance-free battery), such as when the first battery pack uses lead-acid battery, may be selected
Lithium battery is as the second battery pack 1；Second battery pack 1 (such as hydrogen storage electric energy conversion it is also an option that various fuel cells
Device) and any form of device for converting electric energy such as fuel electric generating apparatus, device of solar generating, wind electricity generating system.
The present invention has the advantages that routine can be effectively increased by adding the double power-supply system to conventional UPS equipment
The working time of UPS equipment；UPS equipment structure to add double power-supply system scheme manufacture is simple, combination diversification,
It is at low cost, adapt to the equipment configratioin requirement of high-end UPS.
Detailed description of the invention
Fig. 1 a is a kind of foundation structure schematic diagram of the invention.
Fig. 1 b is another foundation structure schematic diagram of the invention.
Fig. 1 c is the foundation structure schematic diagram of the present invention two sets of double power-supply systems of setting.
Fig. 2 is a kind of logic control constructs schematic diagram of the invention.
Fig. 3 is the logic control constructs schematic diagram that DC/DC charging module is independently arranged.
Fig. 4 adds a kind of logic control constructs schematic diagram of voltage increase module.
Fig. 5 is a kind of logic control constructs schematic diagram that DC/DC charges, voltage increase module is independently arranged.
Fig. 6 is the capacitor schematic diagram in parallel with measure and control device output end.
Fig. 7 is the logic control constructs schematic diagram that two filtering protection modules are arranged.
Fig. 8 is a kind of logic control constructs schematic diagram for adding supplement electric installation.
Attached drawing mark:
1, the second battery pack；2, measure and control device；2a, filtering protection module；2b, signal acquisition process module；2c,DC/DC
Charging module；3, logic interfacing；4, the first battery pack；5, voltage increase module；6, capacitor；7, the supplement electricity of the second battery pack
Device.
Specific embodiment
Further the present invention is described in detail with reference to the accompanying drawings and examples.
Referring to Fig. 1 a, a kind of foundation structure of the double power-supply system of UPS of the present invention, the basic components of double power-supply system
Including the second battery pack 1, measure and control device 2 and logic interfacing 3, the first battery pack of signal input part connection 4 of measure and control device 2 is (often
Advise the backup power source form of UPS equipment configuration)；Another foundation structure of the double power-supply system is as shown in Figure 1 b, observing and controlling dress
The signal input part for setting 2 connects the first battery pack by logic interfacing 3.The double power-supply system, including inside correspondence system
The various combination mode of multiple components, Fig. 1 c are a kind of setting one the first battery pack, 4, two the second battery packs, 1, two observing and controlling
Device 2, the combination examples for sharing logic interfacing 3.Second battery pack includes the higher one-shot battery of specific energy, can also be with
It is preferred that the secondary cell that specific energy is high compared with the first battery pack；When the similar (choosing of the specific energy of the second battery pack and the first battery pack
Type is identical) in addition the second battery pack specific energy be lower than the first battery pack when, technology implementation result of the invention can be reduced.
The power supply of existing market UPS equipment configuration is mainly secondary cell, and secondary cell needs normality floating charge because self discharge is big
Electricity or regular replenishment electric energy, wherein what it is because of cost performance Gao Erzhan leading market status is plumbic acid maintenance-free battery, specific energy
It is lower, about 35VAh/Kg；Although lithium battery monomer specific energy can achieve 100~120VAh/Kg, but it is practical in need tube-carrier
Reason system；Monomer specific energy about 60~70VAh/Kg of nickel-metal hydride battery, but it is practical in equally need additional management system；A few class batteries
Using respectively there is its advantage and disadvantage in UPS equipment, when UPS equipment configures large capacity reserve battery, lithium battery and nickel-metal hydride battery are all
There are security risks well known to industry.
One-shot battery is clearly advantageous that specific energy compared with high, self discharge is small, such as the theoretical specific energy of aluminium-air cell can
To reach 8000VAh/Kg or more, the specific energy for the aluminium-air cell product that recent market occurs also have reached 1000VAh/Kg with
On, this kind of one-shot battery is also universal with the big defect of internal resistance, though specific energy is high, large current discharging capability is especially instantaneous big
Electric current (pulse high current) discharge capability can not show a candle to above-mentioned several conventional secondary cells, but as the second battery pack, can hold completely
Load is to the first battery pack electric energy supplement or in parallel with the first battery pack meets the needs of UPS equipment is to discharge performance.With technology
Development, certain one-shot batteries at this stage be possible to realize can charge repeatedly, such as recent aluminium ion battery forward position research and development
It has made a breakthrough.
Fig. 2 be UPS of the present invention double power-supply system a kind of logic control constructs schematic diagram, measure and control device 2 it is interior
Portion's structure includes the common filtering protection module 2a of industry, signal acquisition process module 2b and DC/DC charging module 2c；It is described
The logic function of signal acquisition process module 2b includes being allowed to the signal acquisition of 4 real-time status of the first battery pack, processing
Logic basis is provided to the first battery pack electric energy supplement in setting state to realize；The real-time voltage of first battery pack 4 and
Real time capacity state can select a monitoring, can also monitor simultaneously, can continuously monitor also with periodic monitor, to collected signal
It carries out data to compare and handle, starts the second battery pack in the case where setting logical condition and charge to the DC/DC of the first battery pack.
The DC/DC is charged as DC power supply well known to industry to the charging technique of battery, when measure and control device 2 is with one
When body module realizes inside function, the function is realized by the CPU programming to measure and control device 2.
The measure and control device 2 monitors the first battery pack 4 inside the real-time voltage of the first battery pack 4, such as certain UPS and uses mark
Operating voltage is referred to as the lead-acid battery of 48V, and normal working voltage section is 43.20V to 53.52V (conventional online float charge voltage
Generally 53.52V, final discharging voltage are generally 43.2V), the threshold voltage of electricity is supplemented as 43.2V when setting the ups power
When, as long as signal acquisition process module 2b monitors that the real-time voltage of the ups power (the first battery pack 4) drops to 43.2V, i.e.,
Issue corresponding logical process signal.
Known in industry, the real-time voltage and real time capacity and non-linear relation of battery pack work as plumbic acid by taking lead-acid battery as an example
When softening, a large amount of dehydrations of electrolyte or negative plate generation sulphate crystal salinization phenomenon occur for inside battery positive plate, having can
Voltage virtual height can be shown as, but storage capacity is very low, measure and control device 2 monitors the real-time voltage of the first battery pack 4 simultaneously at this time
Untrue its storage capacity status of reflection, therefore the real-time of the first battery pack should be monitored to the higher double power-supply system of technical requirements
Capacity, and in the work-based logic condition set as the first battery pack electric energy supplement；The technology of conventional detection battery capacity is to use
Proton differential flow data comparing method has the capacity tester and integrated circuit testing module of various precision in the market, by itself and
One battery pack parallel connection can read capacity signal；When practical, capacity tester or test module need not be with the first battery pack normalities
Parallel connection is preferably set as timing (such as at interval of 15 minutes) first battery pack of connection in parallel in the middle control platform of measure and control device
Read capacity signal；Such as the fullcharging capacity of the first battery pack inside certain UPS is 500Ah, as long as measure and control device reads the
The capacity of one battery pack drops to 50Ah, and signal acquisition process module 2b issues corresponding logical process signal.
The measure and control device 2 can select a setting to the real-time voltage of the first battery pack 4 or the monitoring function of real time capacity
It can design simultaneously.
DC/DC charging module 2c can be independently arranged, and market has the integrated circuit device module of various specifications；Power device
Part with logic control device is discrete is conducive to job stability, especially when charging module 2c power is larger；Fig. 3 is a kind of charging
The logic control constructs schematic diagram that module 2c is independently arranged.
When the design voltage of the second battery pack 1 is lower than the voltage of the first battery pack 4, electricity need to be added in double power-supply system
Pressure hoisting module 5, which is just able to achieve, charges to the first battery pack；Such as the ups power (the first battery pack) that communication equipment station is common is
48V500Ah counts 24000VAh, and the second battery pack uses aluminium-air cell, is suitble to production because of the specific energy of aluminium-air cell height
Large capacity, such as preferable Capacity design value are 2000Ah, and the aluminium-air cell energy the sixth of the twelve Earthly Branches for only configuring nominal 12V reaches
24000VAh can make the working time of conventional ups power extend one times；In the design example, the aluminium air electricity nominal 12V is needed
The voltage increase in pond is to 48V or more.
Fig. 4 is a kind of logic control constructs schematic diagram that voltage increase module 5 is added on the basis of Fig. 2 states example, and voltage mentions
Rising mould block is independently arranged.Fig. 5 is one kind on the basis of Fig. 3 states example, and voltage increase module 5 and DC/DC charging module 2c are independent
A kind of preferred design logic control constructs schematic diagram being arranged.
Measure and control device 2 (including be independently arranged DC/DC charging module, voltage increase module 5) signal logic control need
Operating current is wanted, static consuming electricity, (static state described herein is double power-supply system in the live signal to the first battery pack 4
Acquisition, processing status, function of the not enabled to 4 electric energy supplement of the first battery pack), which both can electricity
The first battery pack 4 can also be electrically connected by connecting the second battery pack 1, and two schemes respectively have its advantage and disadvantage, can according to specific requirement and
Design.
In double power-supply system be added capacitor technical purpose, allow for use certain large capacity one-shot batteries as
When the second battery pack, closure electric discharge moment can generate biggish dash current；In addition when UPS equipment is run, center control
System or auxiliary device (such as battery inspection system) are also possible to interfere measure and control device 2 by the first battery pack 4, add
The closure dash current and system coupling can be effectively eliminated to the influence of 2 bring of measure and control device by entering capacitor；Capacitor can be with
It is arranged in parallel the output end in measure and control device, as shown in fig. 6, it can also be arranged in parallel the input terminal in measure and control device, or both
It is arranged simultaneously.
The basic function of the logic interfacing 3 is that the second battery pack 1 passes through the first battery pack 4 of electrical connection of measure and control device 2
Circuit switch, the circuit switch generally use electrically controllable power switches and are set as logic automatic control mode；Logic interfacing 3 is simultaneously
It is channel of the measure and control device 2 to the first battery pack 4 acquisition signal, passes through the first battery pack pair to eliminate ups power central control system
The additional pulse signal of measure and control device 2 influences, and can filter in logic interfacing 3 with addition in the signal path of measure and control device 2
Protect circuit.
Filtering protection module may be provided at the either signal input channel of measure and control device, and Fig. 2 illustrates filtering protection module
A kind of design that the first battery pack 4 enters 2 input terminal of measure and control device by logic interfacing 3 is arranged in 2a；Filtering protection module 2a
Also it may be provided at the second battery pack 1 into the input channel of measure and control device 2 or two input channels while filtering protection mould be set
Block, as shown in Figure 7.
When using secondary cell as the second battery pack, because the self discharge of secondary cell is generally larger, (the general moon is put certainly
Electric rate can reach the 3-10% of nominal capacity), regular replenishment electric energy is needed, electric energy supplement can be in the double power-supply system
Dedicated supplement electric installation 7 is set to realize；The supplement electric installation can be independently arranged, also using the normality floating charge of the first battery pack 4
(including periodical charging) is the electricity that the secondary cell (the second battery pack 1) supplement is lost by self discharge, the electric skill of this kind of supplement
Art is to generally comprise well known to industry including output voltage constant circuit and output current limit circuit, if electric energy supplement
The non-straight galvanic electricity in source further includes rectification circuit；Fig. 8 is a kind of logic control constructs signal for adding supplement electric installation 7 of the present invention
Figure, accordingly the power input channel for supplementing electric installation is docked in setting to logic interfacing 3, passes through the power input for supplementing electric installation
Logic interfacing is electrically connected the first battery pack 4.The power input of supplement electric installation 7 also may be designed as being electrically connected the UPS equipment
Power input.
Above-mentioned supplement electric installation 7 generally comprises output voltage constant circuit and output current limit circuit, specifically when design
It need to flexibly use；The secondary cell for being used for example as the second battery pack 1 does not need normality floating charge, regular replenishment electric energy；Again
Such as the power input of supplement electric installation 7 and the charger output end of the first battery pack 4 are designed as interface and shared, in this way may be used
Normality floating charge or the periodicity charging system for making full use of the first battery pack 4, are similarly obtained the second battery pack 1 of secondary cell
Normality floating charge or periodic replenishment electricity.
Embodiment below is only to recommend, these several technical solutions can be used alone, can also be added or organize merging and use it
His mature technology；As long as passing through measure and control device pair according to the technical characterstic that the decline of the first battery voltage or capacity is showed
It carries out signal acquisition and data processing, starts the second battery pack under the logical condition of setting to the DC/ of the first battery pack
DC charging, can be realized the basic fundamental target of the present invention program.
It to ups power technology compared with the professional person understood in depth, is all not difficult on the basis of scheme of the present invention, lifts one
Anti- three ground deformation implementation the content of present invention.The foundation structure of double power-supply system of the present invention and its derivative technology deformation are real
It applies, protection scope of the present invention should be put into.
Embodiment
Embodiment 1,
Design a kind of double power-supply system of UPS equipment upgrading, 4 capacity of the first battery pack of the double power-supply system with should
The former design power supply capacity of UPS equipment is identical, is the plumbic acid maintenance-free battery of nominal 48V200Ah, power number meter 9600VAh.
First battery pack 4 is electrically connected the power input of the UPS equipment, and (first battery pack 4 also can be considered described in utilization
The reserve battery that first wife sets inside UPS equipment).
Second battery pack 1 of double power-supply system uses aluminium-air cell, monomer nominal voltage 1.71V, monomer capacity
1000Ah, 38 monomer series-connected the second battery packs at nominal voltage 65V, nominal capacity 1000Ah, the i.e. function of the second battery pack
Rate number meter 65000VAh；The power input of second battery pack 1 electrical connection measure and control device 2；Measure and control device 2 is internally provided with filter
Wave protective module 2a, signal acquisition process module 2b and DC/DC charging module 2c, the logic function of signal acquisition process module 2b
It include the signal acquisition process to 4 real-time status of the first battery pack, as shown in Figure 2.
Measure and control device 2 realizes that function includes to the first battery pack using integrated data processing, power module programming
The signal acquisitions of 4 real-time status, signal processing and DC/DC charging, logic working current interface pass through the electrical connection of logic interfacing 3 the
One battery pack 4.
Signal acquisition interface of the logic interfacing 3 in addition to measure and control device 2, the power interface function automatically controlled using a regular logical
Rate switch, automatically controlling logic is (open circuit) not to be closed when receiving " 0 " signal, when receiving " 1 " signal and the first battery
4 closure (circuit conducting) of group.
The control logic of DC/DC charging module 2c in measure and control device 2 is set as constant output voltage by programming
53.52V, limitation maximum output current 20A；The output loop design of charging module has starting triggering logic switch, output loop
It is stood when open circuit, synchronous averaging (the circuit conducting) when output loop is switched on.
Measure and control device 2 is that real-time voltage monitors to the signal acquisition of the first battery pack 4, processing, when the reality of the first battery pack 4
When voltage when being higher than 43.2V, measure and control device 2 exports " 0 " signal to logic interfacing 3, and double power-supply system is in static condition and (ignores
Voltage signal real-time monitoring, the power consumption of processing)；When the real-time voltage of the first battery pack 4 drops to 43.2V, measure and control device 2 is right
Logic interfacing 3 exports " 1 " signal, and logic interfacing 3 and the first battery pack 4 are closed；At the same time, the DC/DC in measure and control device 2 fills
Electric module 2c is because output loop is switched on, automatically into charged state.
The present embodiment double power-supply system has the second battery pack 1 of large capacity because of interior design, and reserve capacity number is first
6.8 times of battery pack 4 can increase the UPS equipment compared with only with the power supply of 48V200Ah lead-acid battery group (former design value)
Original designs 6.8 times of power supply of backup power source working time, and it is insufficient to have effectively adapted to a part of former design spare working time
The power supply increase-volume demand of UPS equipment.
Logic interfacing 3 described in the present embodiment can also be replaced into interactive interface manipulation form, by measure and control device
The mode of 2 pairs of 3 output signals of logic interfacing be replaced into operator prompt, such as coloured light, sound toot, number display etc., pass through
The control mode of human interface is closed logic interfacing 3.
Embodiment 2,
The reserve capacity number of the second battery pack 1 is 65000VAh in 1 double power-supply system of embodiment, when matched UPS equipment
Spare working time when not needing 6.8 times that reach former design value, the reserve capacity number of the second battery pack can be reduced；Because of aluminium
The specific energy of air cell is high, is preferably made as products with larger capacity (cost performance is high), and the present embodiment is by the second battery pack in embodiment 1
1 aluminium-air cell monomer is changed to 7,7 monomer series-connected the second batteries at nominal voltage 11.97V, nominal capacity 1000Ah
Group, i.e. the power number meter 11970VAh of the second battery pack.
DC/DC voltage increase module 5 is added in the present embodiment on that basis of example 1, is independently arranged；This kind of voltage increase
Module has the product of various specifications in market, and power number can reach the demand of the ups power, only by specification be needed to compile after purchasing
Journey, filling corresponding data can be used.In the present embodiment, the second electricity of power input electrical connection of DC/DC voltage increase module
Pond group 1, signal input part connect the signal acquisition process module 2b of measure and control device 2, and power output end is electrically connected in measure and control device 2
The input terminal of DC/DC charging submodule 2c.
Remaining is same with embodiment 1, and the present embodiment is the 1.25 of the first battery pack 4 because of the reserve capacity number of the second battery pack 1
Times, double power-supply system can increase the backup power source working time of 1.25 times of original UPS equipment after enabling.
DC/DC charging module 2c in aforementioned measure and control device 2 can also discrete design, as shown in figure 3, realizing institute by programming
The function of stating；Because the operating current of DC/DC charging module 2c reaches 20A, the discrete setting of DC/DC charging module 2c is more advantageous to letter
The job stability of number acquisition processing module 2b.
Embodiment 3,
Capacitor is continuously added in the design basis of embodiment 2, technical purpose is to eliminate matched UPS equipment to survey
2 bring system of the device coupling of control influences；Using the capacitor 6 of a 400V500UF, capacitor 6 is arranged in parallel to be filled in observing and controlling
The output end set, as shown in Figure 6.
Remaining is same with embodiment 2.
Embodiment 4,
Reference implementation example 1 designs a kind of containing double power-supply system, the super communication equipment station UPS equipment with power supply capacity.Communication
UPS equipment common power configuration in machine station is 48V500Ah, i.e., reserve capacity is 24000VAh.
The standby functions control of the present embodiment UPS equipment and battery inspection design scheme and common UPS equipment are similar, different
Be the UPS equipment using double power-supply system of the present invention；In common UPS equipment, if backup power source is led to by dry cell
It crosses series connection or adduction connection is composed (its functional structure is equivalent to the first battery pack 4 of the present invention), the present embodiment institute
This conventional backup power source of the double power-supply system substitution stated, several basic engineering data are as follows: the first battery pack is nominal using 4
The nickel-zinc cell group of 12V100Ah is composed in series the first battery pack 4 of nominal 48V100Ah, nominal power number meter 4800VAh；The
Two battery packs 1 equally use aluminium-air cell, and monomer capacity is all 1000Ah, 38 it is monomer series-connected at nominal voltage 65V, it is nominal
Capacity 1000Ah, i.e. the reserve capacity number meter 65000VAh of the second battery pack.
The DC/DC charging module 2c of the present embodiment is arranged independently of measure and control device 2, as shown in Figure 3；DC/DC charging mould
Block 2c is set as constant output voltage 53.52V, limitation maximum output current 10A by programming；The remaining design of measure and control device 2
It is similar with the design and implementation example 1 of logic interfacing 3.
UPS equipment designed by the present embodiment, due to using cheap, large capacity aluminium-air cell as second
Battery pack 1,1 idle capacity of the second battery pack in double power-supply system are 65000VAh, the first battery pack 4 (nickel-zinc cell group)
Idle capacity is 4800VAh, and battery reserve capacity reaches 69800VAh, be general communication machine station ups power (48V500Ah,
24000VAh) 2.91 times, i.e., the spare working time is 2.91 times of this kind of general communication machine station ups power.
The obvious advantage of UPS equipment designed by the present embodiment is:
1), the spare working time is longer；
2), power volume is small, light-weight；
3), opposite cost is lower；
4), battery type selecting has environment-friendly advantage.
Embodiment 5,
Measure and control device 2 is improved in the design basis of embodiment 4 to the monitoring accuracy of the first battery pack 4.
Because of the real-time voltage and real time capacity and non-critical linear relationship of battery pack, especially it is possible to when cell degradation
Voltage virtual height is shown as, measure and control device 2 monitors the real-time voltage and the first battery pack of untrue reflection of the first battery pack 4 at this time
4 storage capacity status, therefore the double power-supply system of the present embodiment monitors real-time voltage to the first battery pack 4 in measure and control device 2
In design basis, increase the function of the first battery pack real time capacity of monitoring.
A kind of commercially available integrated circuit special module for aiming at test battery capacity and designing, precision 1%, this kind of battery
Proton differential flow data comparing method is usually used in the technology of volume test module, by the test module electric power connection line and the first electricity
The two poles of the earth of pond group 4 are electrically connected (positive and negative anodes that the first battery pack 4 is paid attention to when electrical connection), and capacity signal output end connects observing and controlling dress
Set 2 signal acquisition process module 2b；Volume test module was set as by the CPU platform of measure and control device 2 at interval of 5 minutes
First battery pack 4 is connected in parallel connection, reads the real time capacity signal of the first battery pack；The observing and controlling of signal acquisition process module 2b
Logic setting are as follows: as long as the capacity that measure and control device 2 reads the first battery pack 4 drops to 5Ah, signal acquisition process module 2b is
Corresponding logical process signal is issued, the second battery pack 1 is made to pass through 4 electric energy supplement of the first battery pack of DC/DC charging module 2c.
Second battery pack 1 described in the present embodiment, type selecting can also be changed to charge repeatedly the aluminium ion battery used,
Lithium ion battery or the higher secondary cell of other specific energies.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to embodiment to the present invention into
Go detailed description, those skilled in the art should understand that, it modifies to technical solution of the present invention or equivalent
Replacement, without departure from the spirit and scope of technical solution of the present invention, is intended to be within the scope of the claims of the invention.
Claims (6)
1. a kind of double power-supply system of UPS, which is characterized in that the double power-supply system includes the first battery pack (4), the second electricity
Pond group (1), measure and control device (2) and logic interfacing (3)；First battery pack (4) is secondary cell, is electrically connected logic interfacing
(3) and the power input of the UPS；The power input of second battery pack (1) electrical connection measure and control device (2)；It is described
The output end of measure and control device (2) is electrically connected first battery pack (4) or is electrically connected the first battery pack by logic interfacing (3)
(4)；The signal input part connection the first battery pack (4) of the measure and control device (2) connects the first battery by logic interfacing (3)
Group (4)；The measure and control device (2) can acquire, handle the real-time status signal of first battery pack (4), in setting logic shape
State realizes control the second battery pack (1) to the first battery pack (4) electric energy supplement；Second battery pack (1) is primary electricity
Pond；
The measure and control device (2) includes filtering protection module (2a), signal acquisition process module (2b) and DC/DC charging module
(2c)；The signal acquisition process module (2b) includes voltage collection circuit and/or battery capacity Acquisition Circuit；Described
DC/DC charging module (2c) includes output voltage constant circuit and output current limit circuit；
The double power-supply system further includes voltage increase module (5)；The voltage increase module (5) include power input,
Power output end and signal input part, power input are electrically connected the second battery pack (1), and power output end is electrically connected DC/
DC charging module (2c), signal input part connect measure and control device (2).
2. double power-supply system according to claim 1, which is characterized in that the DC/DC charging module (2c) is discrete to be set
It sets, power input is electrically connected the second battery pack (1), and power output end is electrically connected logic interfacing (3) or the described first electricity
Pond group (4), signal input part connection signal acquisition processing module (2b).
3. double power-supply system according to claim 1, which is characterized in that described voltage increase module (5) the discrete setting,
Its part logic function or whole logic functions can be integrated in measure and control device (2).
4. a kind of UPS equipment, which is characterized in that the UPS equipment contains double electricity of the UPS as described in claims 1 to 3 is any
Source system；Measure and control device (2) discrete setting of the double power-supply system, also can by the part logic function of measure and control device (2) or
Whole logic functions are integrated in the central control system of the UPS equipment.
5. the control method of the double power-supply system based on any UPS of claims 1 to 3, this method is by the measure and control device (2)
Real-time status monitoring is carried out to the first battery pack (4), and passes through the second electricity of measure and control device (2) control under the logic state of setting
Pond group (1) electric discharge is the first battery pack (4) electric energy supplement.
6. according to the method described in claim 5, it is characterized in that, the measure and control device (2) is to the real-time of the first battery pack (4)
Condition monitoring, real-time voltage or/and real time capacity including the first battery pack (4)；The logic state set is the survey
The real-time voltage or/and real time capacity that control device (2) monitors the first battery pack (4) are lower than set threshold values.
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| CN113629840A (en) * | 2021-08-12 | 2021-11-09 | 宣城先进光伏技术有限公司 | Power supply system and power supply method applied to animal protection system |
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| CN101064363A (en) * | 2006-04-30 | 2007-10-31 | 苏州宝时得电动工具有限公司 | Batteries bag and electric tool having the same |
| CN203398867U (en) * | 2013-05-21 | 2014-01-15 | 巨人通力电梯有限公司 | Long-service-life uninterrupted power supply (UPS) |
| CN103545911A (en) * | 2013-10-25 | 2014-01-29 | 广东易事特电源股份有限公司 | Uninterrupted power system capable of conducting double-input intelligent power supply |
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| US5223351A (en) * | 1991-11-14 | 1993-06-29 | Globe-Union Inc. | Dual battery system |
| GB2384615B (en) * | 2001-08-13 | 2004-11-10 | Nec Technologies | Battery pack |
| CN102025187A (en) * | 2010-12-24 | 2011-04-20 | 深圳市华通电气设备有限公司 | Integrated UPS (Uninterrupted Power Supply) parallel system of underground weak current |
| CN203261057U (en) * | 2013-04-13 | 2013-10-30 | 王熙宁 | Novel numerical control charger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064363A (en) * | 2006-04-30 | 2007-10-31 | 苏州宝时得电动工具有限公司 | Batteries bag and electric tool having the same |
| CN203398867U (en) * | 2013-05-21 | 2014-01-15 | 巨人通力电梯有限公司 | Long-service-life uninterrupted power supply (UPS) |
| CN103545911A (en) * | 2013-10-25 | 2014-01-29 | 广东易事特电源股份有限公司 | Uninterrupted power system capable of conducting double-input intelligent power supply |
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