CN103887833A - Control device suitable for lithium battery and supercapacitor composite power source - Google Patents
Control device suitable for lithium battery and supercapacitor composite power source Download PDFInfo
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- CN103887833A CN103887833A CN201210556097.5A CN201210556097A CN103887833A CN 103887833 A CN103887833 A CN 103887833A CN 201210556097 A CN201210556097 A CN 201210556097A CN 103887833 A CN103887833 A CN 103887833A
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Abstract
The invention relates to a control device which is suitable for a lithium battery and supercapacitor composite power source. The control device comprises a device box. The device box is provided with a dustproof cover. The control device is characterized in that a battery accommodating assembly is arranged in the device box, the positive port of the battery accommodating assembly is connected with the input end of a digital circuit control assembly, and the output end of the digital circuit control assembly is provided with a current direction control assembly and connected with a load interface, and at the same time, the load interface is connected with the input end of a direct-current step-up assembly through a field effect auxiliary assembly, the output end of the direct-current step-up assembly is connected with the input end of a voltage stabilization assembly, and the output end of the voltage stabilization assembly passes through the current direction control assembly and then is connected to a supercapacitor so as to recover energy. Thus, two power sources including a supercapacitor assembly and a lithium ion battery of different performance characteristics can be combined together according to respective advantages of the two power sources, and a large current and a small current can be outputted separately according to the needs.
Description
Technical field
The present invention relates to a kind of control device, relate in particular to one and be applicable to lithium battery super capacitor composite power source control device.
Background technology
In modern many application, such as mobile electronic equipment, communications equipment, Aero-Space power-supply system and motor vehicle etc., their load has that a common trait---peak power is obviously greater than average power.In the middle of existing battery supply, lead-acid battery energy density is lower, seriously polluted.Although fuel cell energy density is high, so it need to be restricted in very long start-up time of the slow application of response speed.Other two kinds of novel battery power supplys---lithium ion battery and super capacitor, the former has higher energy density, and the latter has very high power density, long-life.But, do not have at present a kind of device above-mentioned various battery apparatus preferably can be integrated.
Summary of the invention
Object of the present invention is exactly in order to solve the above-mentioned problems in the prior art, provides one to be applicable to lithium battery super capacitor composite power source control device.
Object of the present invention is achieved through the following technical solutions:
One is applicable to lithium battery super capacitor composite power source control device, include device box body, on described device box body, be provided with dust cap, wherein: in described device box body, be provided with battery accommodating assembly, the anodal port of described battery accommodating assembly is connected with the input of Digital Circuit Control assembly, the output of described Digital Circuit Control assembly is provided with sense of current control assembly and is connected with load port, described loading interfaces is connected with the input of DC boosting assembly by field effect accessory part, the output of described DC boosting assembly connects the input of stabipack, then the output of described stabipack is connected to ultracapacitor with recuperated energy by sense of current control assembly, described Digital Circuit Control assembly is provided with auxiliary control port, described auxiliary control port connects the negative pole port of battery accommodating assembly by super capacitor assembly.
Further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: described Digital Circuit Control assembly includes energy resource supply port, described energy resource supply port one side is connected with battery accommodating assembly, described energy resource supply port opposite side is connected with the input of circuit control module, the output of described circuit control module is connected into the output of Digital Circuit Control assembly, described circuit control module includes electric current adjusting part, on described electric current adjusting part, is connected with N-type metal-oxide-semiconductor field effect t.
Further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: in described Digital Circuit Control assembly, be provided with auxiliary current direction control module.
Further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: described super capacitor assembly is composed in series by monomer super capacitor, or is made up of monomer super capacitor institute in parallel.
Again further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: described battery accommodating assembly includes battery accommodating box, is provided with cell lithium ion battery group in series in described battery accommodating box; Or in described battery accommodating box, be provided with the cell lithium ion battery group forming in parallel.
Further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: described device box body side surface is provided with ventilation hole.
Further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: in described device box body, be provided with radiating subassembly.
Again further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: described radiating subassembly includes fin, on described fin, is provided with radiator fan.
Again further, above-mentioned one is applicable to lithium battery super capacitor composite power source control device, wherein: in described device box body, be provided with reinforcement.
The advantage of technical solution of the present invention is mainly reflected in: rely on coordinating between battery accommodating assembly and super capacitor assembly, can allow super capacitor assembly and lithium ion battery advantage separately that the power supply of these two kinds of different performance features is combined, can export respectively as required the little electric current of large electric current.Meanwhile, different depth of discharges meet the stability of peak power output.Moreover this practical neotectonics is simple, be easy to promote.
Accompanying drawing explanation
Object of the present invention, advantage and disadvantage, by for illustration and explanation the non-limitative illustration by preferred embodiment below.These embodiment are only the prominent examples of application technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and form, within all dropping on the scope of protection of present invention.In the middle of these accompanying drawings,
Fig. 1 is the organigram that is originally applicable to lithium battery super capacitor composite power source control device;
Fig. 2 is according to setting electric current when output sense of current control assembly voltage (UCVoltage) graph of a relation in time in embodiment mono-;
Fig. 3 is according to setting electric current when output lithium ion battery group voltage (Li Voltage) graph of a relation in time in embodiment mono-;
Fig. 4 is maximum power (Power) value of the lower system output of the different depth of discharges of system (Depth of Discharge) in embodiment bis-;
Fig. 5 is the principle schematic that is originally applicable to lithium battery super capacitor composite power source control device.
1 device box body 2 battery accommodating assemblies
3 Digital Circuit Control assembly 4 sense of current control assemblys
5 stabipack 6 DC boosting assemblies
7 field effect accessory part 8 loading interfaces
9 super capacitor assembly 10 electric current adjusting parts
11 N-type metal oxide fields are imitated 12 auxiliary current direction controls and are answered control module
13 ventilation hole 14 fin
15 radiator fan 16 reinforcements
Embodiment
One as shown in Fig. 1～5 is applicable to lithium battery super capacitor composite power source control device, include device box body 1, on device box body, be provided with dust cap, its unusual part is: in this practical new adopted device box body 1, be provided with battery accommodating assembly 2.Consider and can coordinate follow-up super capacitor assembly 9 to mix coupling with battery accommodating assembly 2 as power supply, preferably Electronic Control is provided, be connected with the input of Digital Circuit Control assembly 3 at the anodal port of described battery accommodating assembly 2.Meanwhile, the output of Digital Circuit Control assembly 3 is provided with the input of sense of current control assembly 4, and the output of sense of current control assembly 4 is connected with the input of stabipack 5 (linear voltage regulater).And, consider the needs that braking energy reclaims, the output of stabipack 5 is connected with DC boosting assembly 6, and (input of (DC booster), the output of DC boosting assembly 6 is connected with loading interfaces 8 by field effect accessory part 7.In order effectively to realize cooperatively interacting of super capacitor assembly 9 (supercapacitors) and battery accommodating assembly 2, Digital Circuit Control assembly 3 is provided with auxiliary control port, and auxiliary control port connects the negative pole port of battery accommodating assembly 2 by super capacitor assembly 9.
With regard to preferably execution mode of the present invention one, hold the work of assembly 2 for the ease of matching battery, Digital Circuit Control assembly 3 includes energy resource supply port, and energy resource supply port one side is connected with battery accommodating assembly 2, and energy resource supply port opposite side is connected with the input of circuit control module.Meanwhile, be connected into the output of Digital Circuit Control assembly 3 at the output of circuit control module.Specifically, in order to improve overall regulating effect, circuit control module includes electric current adjusting part 10, is connected with N-type metal-oxide-semiconductor field effect t 11 on electric current adjusting part 10, both NMOS field effect transistor.Adopting NMOS field effect transistor is to realize the large flow of Small current control as the object of switch element, can connect and realize digital control practical interlock circuit in new.
And, consider the flow direction that can effectively control electric current, promote the quality of application, in Digital Circuit Control assembly 3, be provided with auxiliary current direction control module 12.Certainly,, for the facility of production and assembly, sense of current control assembly 4 all can adopt diode (DIODE) with auxiliary current direction control module 12.
Further, consider the facility of whole implementation, can adapt to different application needs, what meet different depth of discharges is user demand, promotes through-put power, and super capacitor assembly 9 is composed in series by monomer super capacitor.Or institute in parallel forms by monomer super capacitor.
Same, in order to promote the charging and discharging energy storage effect of battery accommodating assembly 2, this practical new adopted battery accommodating assembly 2 includes battery accommodating box, is provided with cell lithium ion battery group in series in battery accommodating box.Or, in described battery accommodating box, be provided with the cell lithium ion battery group forming in parallel.
Again further, the various assembly modules that the present invention adopts, in the time processing corresponding super capacitor assembly 9 with lithium ion battery group operating state, easily produce heat, cause the work fatigue of components and parts, in order effectively to dispel the heat, device box body 1 side is provided with ventilation hole 13.Certainly,, for better improving radiating effect, in device box body 1, be provided with radiating subassembly.Specifically, this practical new adopted radiating subassembly includes fin 14, is provided with radiator fan 15 on fin 14.There is this, can improve air change efficiency, when cooling, promote the life-span.
Moreover, in order to promote bulk strength of the present invention, adapt to different installation station needs, prevent from falling or occur unexpected cracking, can improve the ability of device box body 1 anti-stress, in device box body 1, be provided with reinforcement 16.Like this, the effectively firm degree of lifting device box body 1.Moreover, rely on the existence of reinforcement 16, can carry out suitable location to the assembly in device box body 1, prevent vibration displacement, improve useful life.
In conjunction with actual service condition of the present invention:
Embodiment mono-:
Ion battery monomer nominal voltage is 4.2V, adopts 3 joint series connection then in parallel with other 3 joints, initially total the and about 12.4V of virtual voltage.Ultracapacitor monomer nominal voltage is 2.5V, adopts 5 joint series connection, and initial virtual voltage is in 12.5V left and right.Loading interfaces connects Arbin tester.By the control of Arbin tester, system is exported the little current-mode of large electric current to it, and Arbin tester test voltage current value.
Sense of current control assembly voltage (UCVoltage) and lithium ion battery group voltage (Li Voltage) graph of a relation in time when Fig. 2 and Fig. 3 are respectively according to the output of setting electric current.Be 0A from 0～14s electric current, start the large electric current of externally export-20A of system (negative value represents electric discharge) from 14s, the duration is 10s; Subsequently until the interior little electric current of externally export-2A of system of 593s time (negative value represents electric discharge); In 593s～603s, the large electric current of externally export-20A of system; In 603s～1168s, the little electric current of externally export-2A of system; After 1168s, electric discharge finishes, and current value is 0A.In Fig. 2, be that system leaves standstill the stage from 0～14s, now sense of current control assembly voltage stabilization is in 12.5V left and right; In 14s～24s, by the externally large electric current of output of bank of super capacitors, can see bank of super capacitors lower voltage clearly.After heavy-current discharge finishes, by system control, lithium ion battery group is charged to bank of super capacitors, can from Fig. 2, see bank of super capacitors voltage rising by 24s～593s, in the time charging to bank of super capacitors voltage and equal lithium ion battery group voltage (about 11.2V), charging finishes and voltage stabilization; In 593s～603s, externally exporting large electric current by ultracapacitor, its lower voltage is obvious; From 603s～1168s, by system control, lithium ion battery group is charged to bank of super capacitors, its voltage rising, in the time charging to bank of super capacitors voltage and equal lithium ion battery group voltage (about 11V), charging finishes and voltage stabilization.In Fig. 3, be that lithium ion battery group leaves standstill the stage from 0～24s, its voltage stabilization is in 12.4V left and right; From 24s～593s, by system control, lithium ion battery group is charged and the externally little electric current of output of lithium ion battery group to bank of super capacitors, can from Fig. 3, see that lithium ion battery group voltage very slowly reduces; In 593s～603s, lithium ion battery is not worked, and can see that its voltage returns to 11.4V by 11V; From 603s～1168s, by system control, lithium ion battery group is charged and the externally little electric current of output of lithium ion battery group to bank of super capacitors, its voltage very slowly reduces; After 1168s, for system discharge stops, now lithium ion battery group voltage returns to 11.2V by 11V.
Control procedure is as follows:
Be that system leaves standstill the stage from 0～14s; From 14s～24s, shown in Fig. 5, to first input end input high level, make NMOS 1 open conducting work, bank of super capacitors is exported large electric current to Arbin tester; From 24s～593s, make it end not conducting to first input end input low level, make NMOS 2 open conducting work to the second input input high level, lithium ion battery group is exported little electric current to Arbin tester, make NMOS 3 open conducting work to the 3rd input input high level simultaneously, lithium ion battery group is charged to bank of super capacitors at the little electric current of output simultaneously.From 593s～603s, to first input end input high level, make NMOS 1 open conducting work, bank of super capacitors is exported large electric current to Arbin tester, makes NMOS 2 and NMOS 3 end not conducting to the second input and 3 input low levels simultaneously.From 603s～1168s, make it end not conducting to first input end input low level, make NMOS 2 open conducting work to the second input input high level, lithium ion battery group is exported little electric current to Arbin tester, make NMOS 3 open conducting work to the 3rd input input high level simultaneously, lithium ion battery group is charged to bank of super capacitors at the little electric current of output simultaneously.It after 1168s, is system discharge termination.
Embodiment bis-:
Lithium-ion battery monomer nominal voltage is 4.2V, adopts 3 joint series connection, the total and about 12.5V of initial virtual voltage.Ultracapacitor monomer nominal voltage is 2.5V, adopts 5 joint series connection, controls its initial virtual voltage in 9V left and right after electric discharge.First lithium ion battery group is carried out to constant current charge to 12.6V, then constant voltage charge a period of time, then lithium ion battery group is carried out to constant current (2A) and be discharged to 9V, measure total electric weight, record the lithium ion battery group magnitude of voltage under different depth of discharges, as shown in the table.
| |
10％ | 20％ | 30％ | 40％ | 50％ | 60％ | 70％ | 80％ | 90％ |
| Voltage | 10.7 | 10.4 | 10.1 | 9.94 | 9.77 | 9.65 | 9.53 | 9.42 | 9.26 |
| (V) | 4 | 5 | 7 | ? | ? | ? | ? | ? | ? |
。
Next to lithium ion battery group constant current charge, constant voltage charge.Then to lithium ion battery group constant-current discharge to magnitude of voltage corresponding under different DOD, super capacitor is carried out to maximum power value output.The result of measuring as shown in Figure 4.Can see, for the system of 12.6V, still can export the power of more than 100 watt at different depth of discharges, actual application value is very high.
Control procedure is as follows: as shown in Figure 5, load (Load) is connect to Arbin tester, the second input input high level is made to NMOS 2 conducting work, enables Arbin tester, to lithium ion battery group constant current charge (2A) to 12.6V; Control Arbin tester to lithium ion battery group constant voltage (12.6V) charging a period of time; Control Arbin tester and make lithium ion battery group constant-current discharge (2A) to 9V, Arbin tester records lithium ion battery group voltage and discharge electricity amount, finds out the magnitude of voltage that different depth of discharges (DOD) are corresponding, as shown above.
Then controlling Arbin tester makes lithium ion battery group constant current (2A) be discharged to 10.74V, make NMOS 2 end not conducting to the second input input low level, the 3rd input input high level is made to NMOS 3 conductings, make lithium ion battery group charge to balance to bank of super capacitors; Make NMOS 3 end not conducting to the 3rd input input low level, first input end input high level is made to NMOS 1 unlatching work, control Arbin tester and make bank of super capacitors carry out maximum power electric discharge, recording powers of laser beam; To first input end input low level, NMOS 1 is ended and do not work, the second input input high level is made to NMOS 2 conducting work, lithium ion battery group constant-current discharge is to 10.45V.To the second input input low level, NMOS 2 is ended and do not work, the 3rd input input high level is made to NMOS 3 unlatching work, lithium ion battery group charges to balance to bank of super capacitors; Make NMOS 3 end not conducting to the 3rd input input low level, first input end input high level is made to NMOS 1 unlatching work, control Arbin tester and make bank of super capacitors carry out maximum power electric discharge, recording powers of laser beam; To first input end input low level, NMOS 1 being ended does not work, the second input input high level is made to NMOS 2 conducting work, the constant current of lithium ion battery group repeats respectively above-mentioned steps and is discharged to magnitude of voltage (10.17～9.26) recording powers of laser beam respectively that different depth of discharges (DOD) are corresponding, and result as shown in Figure 4.
Can find out by above-mentioned character express, adopt after the present invention, rely on coordinating between battery accommodating assembly and super capacitor assembly, can allow super capacitor assembly and lithium ion battery advantage separately that the power supply of these two kinds of different performance features is combined, can export respectively as required the little electric current of large electric current.Meanwhile, different depth of discharges meet the stability of peak power output.Moreover this practical neotectonics is simple, be easy to promote.
Claims (9)
1. one kind is applicable to lithium battery super capacitor composite power source control device, include device box body, on described device box body, be provided with dust cap, it is characterized in that: in described device box body, be provided with battery accommodating assembly, the anodal port of described battery accommodating assembly is connected with the input of Digital Circuit Control assembly, the output of described Digital Circuit Control assembly is provided with sense of current control assembly and is connected with load port, described loading interfaces is connected with the input of DC boosting assembly by field effect accessory part, the output of described DC boosting assembly connects the input of stabipack, then the output of described stabipack is connected to ultracapacitor with recuperated energy by sense of current control assembly, described Digital Circuit Control assembly is provided with auxiliary control port, described auxiliary control port connects the negative pole port of battery accommodating assembly by super capacitor assembly.
2. one according to claim 1 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: described Digital Circuit Control assembly includes energy resource supply port, described energy resource supply port one side is connected with battery accommodating assembly, described energy resource supply port opposite side is connected with the input of circuit control module, the output of described circuit control module is connected into the output of Digital Circuit Control assembly, described circuit control module includes electric current adjusting part, on described electric current adjusting part, be connected with N-type metal-oxide-semiconductor field effect t.
3. one according to claim 2 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: in described Digital Circuit Control assembly, be provided with auxiliary current direction control module.
4. one according to claim 1 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: described super capacitor assembly is composed in series by monomer super capacitor, or is made up of monomer super capacitor institute in parallel.
5. one according to claim 1 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: described battery accommodating assembly includes battery accommodating box, in described battery accommodating box, be provided with cell lithium ion battery group in series; Or in described battery accommodating box, be provided with the cell lithium ion battery group forming in parallel.
6. one according to claim 1 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: described device box body side surface is provided with ventilation hole.
7. one according to claim 1 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: in described device box body, be provided with radiating subassembly.
8. one according to claim 7 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: described radiating subassembly includes fin, on described fin, is provided with radiator fan.
9. one according to claim 1 is applicable to lithium battery super capacitor composite power source control device, it is characterized in that: in described device box body, be provided with reinforcement.
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| CN201210556097.5A CN103887833A (en) | 2012-12-20 | 2012-12-20 | Control device suitable for lithium battery and supercapacitor composite power source |
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| CN201210556097.5A CN103887833A (en) | 2012-12-20 | 2012-12-20 | Control device suitable for lithium battery and supercapacitor composite power source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107054103A (en) * | 2016-12-15 | 2017-08-18 | 山东贝格新能源科技有限公司 | A kind of new automobile-used composite power source control strategy |
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| JP2003079004A (en) * | 2001-09-05 | 2003-03-14 | Nissan Motor Co Ltd | Generation drive control device for vehicle |
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Application publication date: 20140625 |