CN203632337U - Super capacitor and lithium battery parallel circuit of hybrid power bus - Google Patents
Super capacitor and lithium battery parallel circuit of hybrid power bus Download PDFInfo
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- CN203632337U CN203632337U CN201320858353.6U CN201320858353U CN203632337U CN 203632337 U CN203632337 U CN 203632337U CN 201320858353 U CN201320858353 U CN 201320858353U CN 203632337 U CN203632337 U CN 203632337U
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- Prior art keywords
- lithium battery
- super capacitor
- parallel
- circuit
- hybrid power
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- 239000003990 capacitor Substances 0.000 title claims abstract description 44
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 40
- 238000005070 sampling Methods 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a super capacitor and lithium battery parallel circuit of a hybrid power bus. The circuit comprises the following structures: a super capacitor, a lithium battery, a DC-DC converter, a BUCK circuit and a BOOST circuit; the DC-DC converter is connected between the super capacitor and the lithium battery, an IGBT module T1, an IGBT module T2 and an inductor L1 form the DC-DC converter together, one end of the inductor L1 is connected with a connection line between the T1 and the T2, and the other end of the inductor L1 is connected with an anode of the lithium battery; the T1 and the L1 form the BUCK circuit, and the T2 and the L1 form the BOOST circuit, so the super capacitor and the lithium battery is connected in parallel; and an access of the super capacitor is equipped with a current sampling unit, a lithium battery access is also equipped with a current sampling circuit, and a large-capacity energy storage capacitor connected at two ends of the battery in parallel. The super capacitor and lithium battery parallel circuit can play good roles in improving fuel consumption of a whole vehicle, protecting the lithium battery, preventing large-current charge and discharge and prolonging the service life of the hybrid power bus, and has a wide application range.
Description
Technical field
The utility model relates to a kind of hybrid power public transport super capacitor and lithium battery parallel circuits, belongs to automobile circuit field.
Background technology
On current existing hybrid-power bus, super capacitor is mainly used in car load starting and brake energy recovery, lithium battery participates in the car load in the time that super capacitor electric weight is not enough in driving process and drives, but not participating in energy reclaims, main cause is long settling time based on lithium cell charging, and organic efficiency is low.Super capacitor can be realized the fast charging and discharging of large electric current, does not have the problem of efficiency, but still has a kind of possibility, and in the time of super capacitor energy foot, recovery effect was lost efficacy, and produced braking energy and ran off.Super capacitor is realized scheme in parallel with lithium battery by bi-directional DC-DC, between electric capacity and battery, can realize exchange energy, both can realize electric capacity electric weight deficiency time, battery participated in car load driving, when at capacitive energy foot, can utilize again DC-DC slowly to realize energy supplement to battery simultaneously, increase car load energy recovery efficiency.
Utility model content
The utility model provides a kind of hybrid power public transport super capacitor and lithium battery parallel circuits, and described circuit comprises following structure: super capacitor; Lithium battery; The DC-DC transducer that possesses IGBT module T1, T2 and inductance L 1 common composition between super capacitor and lithium battery, inductance L 1 one end connects the connecting line of T1 and T2, and the other end connects the positive pole of described lithium battery; T1 and L1 composition BUCK reduction voltage circuit T2 and L1 form BOOST booster circuit, thereby it is in parallel with lithium battery to realize super capacitor, the path of described super capacitor is with current sampling unit, equally also belt current sample circuit and large capacity storage capacitor in described battery two ends of lithium battery path.
Further, the drive end of described IGBT module TVS pipe in parallel and resistance capacitance play voltage-limiting protection effect.
Further, described current sampling unit adopts instrument transformer, for gathering capacitive path charge and discharge electric current.
Further, described circuit further comprises generator and the generating switch S 1 of series connection, is connected in parallel on described IGBT module T2 and the T1 two ends of series connection after described generator and 1 series connection of generating switch S.
Described circuit further comprises frequency converter, drive motors and the generating switch S 1 of series connection, is connected in parallel on described IGBT module T2 and the T1 two ends of series connection after described frequency converter, drive motors and discharge switch S2 series connection.
When charging the battery, described super capacitor selects BUCK step-down mode, when generating, and generating switch S 1 closure, discharge switch S2 opens, and now electric capacity preferentially charges, in the time that electric capacity is full of, described Frequency Converter Control IGBT module is opened battery charging path, clump and realize battery charging; When electric discharge, closed and the generating switch opens of drive motors end discharge switch, battery supplements as follow-up, in the time that electric capacity over-discharge can approaches cell voltage, can control battery discharge current by BOOST boosting mode by inductance the anti-paralleled diode between collector electrode and the emitter of T1 power to super capacitor or load.
If use separately super capacitor complete car load starting and absorb braking energy work; can realize rate of economizing gasoline 20% left and right according to current data; and use ultracapacitor auxiliary power as hybrid power public transport in parallel with lithium battery; can realize rate of economizing gasoline 25%-30%; for improving car load fuel consume; protection lithium battery is avoided high current charge-discharge, extends its useful life and can play good result.Utilization scope also can suitably be expanded, not only can with current conventional diesel public transport, natural gas public transport, dynamical system is equally also applicable to pure electric type bus, pure electric type fork truck etc.
Accompanying drawing explanation
By describing in more detail exemplary embodiment of the present utility model with reference to accompanying drawing, above and other aspect of the present utility model and advantage will become more and be readily clear of, in the accompanying drawings:
Fig. 1 is that energy of the present utility model reclaims schematic diagram;
Fig. 2 is circuit theory diagrams of the present utility model;
Fig. 3 is BOOST pattern equivalent current schematic diagram of the present utility model;
Fig. 4 is BUCK pattern equivalent current schematic diagram of the present utility model.
Embodiment
Hereinafter, now with reference to accompanying drawing, the utility model is described more fully, various embodiment shown in the drawings.But the utility model can be implemented in many different forms, and should not be interpreted as being confined to embodiment set forth herein.On the contrary, it will be thorough with completely providing these embodiment to make the disclosure, and scope of the present utility model is conveyed to those skilled in the art fully.
Hereinafter, exemplary embodiment of the present utility model is described with reference to the accompanying drawings in more detail.
Super capacitor is in parallel with lithium battery to be realized energy and turns mutually, and lithium battery can charge to super capacitor, and super capacitor become can be energy storage in lithium battery, thereby can reclaim the energy collecting as far as possible braking, save car load oil consumption.The schematic diagram that above-mentioned energy reclaims as shown in Figure 1.
As shown in Figure 2, the utility model provides a kind of hybrid power public transport super capacitor and lithium battery parallel circuits, and described circuit comprises following structure: super capacitor; Lithium battery; The DC-DC transducer that possesses IGBT module T1, T2 and inductance L 1 common composition between super capacitor and lithium battery, inductance L 1 one end connects the connecting line of T1 and T2, and the other end connects the positive pole of described lithium battery; T1 and L1 composition BUCK reduction voltage circuit T2 and L1 form BOOST booster circuit, thereby it is in parallel with lithium battery to realize super capacitor, the path of described super capacitor is with current sampling unit, equally also belt current sample circuit and large capacity storage capacitor in described battery two ends of lithium battery path.Drive end TVS pipe in parallel and the resistance capacitance of described IGBT module play voltage-limiting protection effect.Described current sampling unit adopts instrument transformer, for gathering capacitive path charge and discharge electric current.Described circuit further comprises generator and the generating switch S 1 of series connection, after described generator and 1 series connection of generating switch S, be connected in parallel on described IGBT module T2 and the T1 two ends of series connection, described circuit further comprises the frequency converter of series connection, drive motors and generating switch S 1, described frequency converter, after drive motors and discharge switch S2 series connection, be connected in parallel on described IGBT module T2 and the T1 two ends of series connection, when charging the battery, described super capacitor selects BUCK step-down mode, when generating, generating switch S 1 closure, discharge switch S2 opens, now electric capacity preferentially charges, in the time that electric capacity is full of, described Frequency Converter Control IGBT module is opened battery charging path, clump and realize battery charging, when electric discharge, closed and the generating switch opens of drive motors end discharge switch, battery supplements as follow-up, in the time that electric capacity over-discharge can approaches cell voltage, can control battery discharge current by BOOST boosting mode by inductance the anti-paralleled diode between collector electrode and the emitter of T1 power to super capacitor or load.
The foregoing is only embodiment of the present utility model, be not limited to the utility model.The utility model can have various suitable changes and variation.All any modifications of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model within spirit of the present utility model and principle.
Claims (4)
1. hybrid power public transport super capacitor and lithium battery parallel circuits, is characterized in that:
Described circuit comprises following structure: super capacitor; Lithium battery; The DC-DC transducer that possesses IGBT module T1, T2 and inductance L 1 common composition between super capacitor and lithium battery, inductance L 1 one end connects the connecting line of T1 and T2, and the other end connects the positive pole of described lithium battery; T1 and L1 composition BUCK reduction voltage circuit T2 and L1 form BOOST booster circuit, thereby it is in parallel with lithium battery to realize super capacitor, the path of described super capacitor is with current sampling unit, equally also belt current sample circuit and large capacity storage capacitor in described battery two ends of lithium battery path.
2. hybrid power public transport super capacitor according to claim 1 and lithium battery parallel circuits, is characterized in that:
Drive end TVS pipe in parallel and the resistance capacitance of described IGBT module.
3. hybrid power public transport super capacitor according to claim 1 and 2 and lithium battery parallel circuits, is characterized in that:
Described current sampling unit adopts instrument transformer.
4. hybrid power public transport super capacitor according to claim 3 and lithium battery parallel circuits, is characterized in that:
Described circuit further comprises generator and the generating switch S 1 of series connection, is connected in parallel on described IGBT module T2 and the T1 two ends of series connection after described generator and 1 series connection of generating switch S,
Described circuit further comprises frequency converter, drive motors and the generating switch S 1 of series connection, is connected in parallel on described IGBT module T2 and the T1 two ends of series connection after described frequency converter, drive motors and discharge switch S2 series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858353.6U CN203632337U (en) | 2013-12-24 | 2013-12-24 | Super capacitor and lithium battery parallel circuit of hybrid power bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858353.6U CN203632337U (en) | 2013-12-24 | 2013-12-24 | Super capacitor and lithium battery parallel circuit of hybrid power bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632337U true CN203632337U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858353.6U Expired - Lifetime CN203632337U (en) | 2013-12-24 | 2013-12-24 | Super capacitor and lithium battery parallel circuit of hybrid power bus |
Country Status (1)
| Country | Link |
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| CN (1) | CN203632337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683457A (en) * | 2013-12-24 | 2014-03-26 | 厦门市福工动力技术有限公司 | Hybrid power public transport super-capacitor and lithium battery parallel circuit |
-
2013
- 2013-12-24 CN CN201320858353.6U patent/CN203632337U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683457A (en) * | 2013-12-24 | 2014-03-26 | 厦门市福工动力技术有限公司 | Hybrid power public transport super-capacitor and lithium battery parallel circuit |
| CN103683457B (en) * | 2013-12-24 | 2016-05-04 | 厦门市福工动力技术有限公司 | Hybrid power public transport super capacitor and lithium battery parallel circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 361000, No. 123, Cao Tong Road, industrial concentration area, Tongan District, Fujian, Xiamen Patentee after: XIAMEN FUGONG POWER TECHNOLOGY Co.,Ltd. Address before: 361000 Fujian Province, Xiamen city Tongan Industrial Zone Chi Ping Road No. 2890 Patentee before: XIAMEN FUGONG POWER TECHNOLOGY Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |