CN103072488A - Composite power source - Google Patents
Composite power source Download PDFInfo
- Publication number
- CN103072488A CN103072488A CN2013100380792A CN201310038079A CN103072488A CN 103072488 A CN103072488 A CN 103072488A CN 2013100380792 A CN2013100380792 A CN 2013100380792A CN 201310038079 A CN201310038079 A CN 201310038079A CN 103072488 A CN103072488 A CN 103072488A
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- Prior art keywords
- power source
- secondary battery
- super capacitor
- composite power
- management system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention relates to a composite power source, which is applied to a new-energy automobile. A super capacitor group is serially connected with a secondary battery group. When the discharging voltage of a power source system reaches the lower limit of the starting voltage of a motor, the electricity in the super capacitors is almost completely discharged, so the utilization rate of super capacitors is improved, and the cost of the power source system is reduced. Since the super capacitors are used, the usage amount of batteries is reduced, and the safety of the system is improved. The batteries are serially connected with the super capacitors in use, so the batteries can work in an optimum SOC (system-on-chip) area through the management of a power source management system, and the service life of each battery is prolonged.
Description
Technical field
The present invention relates to a kind of composite power source, can be used in new-energy automobile.
Background technology
The correlative study of ultracapacitor and greatly developing have in recent years been complied with human demand to novel energy, ultracapacitor is a kind of novel high-power energy storage device, compares battery, has larger power density values, compare traditional electrostatic condenser, have higher energy density; Have simultaneously abrupt release ultrahigh current characteristic, the excellent performances such as charge discharge efficiency is high, have extended cycle life, safety are widely used in the new forms of energy industry, especially new-energy automobile and wind-powered electricity generation, the defeated field of photoelectricity storage in recent years.Existing new forms of energy car uses super capacitor or uses secondary battery or use super capacitor and cell parallel as car load propulsion source or auxiliary power source.
Use super capacitor as the new-energy automobile of propulsion source or auxiliary power source, because the specific energy of super capacitor is lower than battery, the car load motor has again certain operating range requirement, when super capacitor voltage is lower than electric motor starting voltage, the energy that stores in the super capacitor is not used and is wasted, have to again increase electric capacity quantity in order to satisfy the car load energy requirement, integral vehicle cost is increased; Use battery as the new-energy automobile of propulsion source or auxiliary power source, owing to using number of batteries numerous, the conformability of battery, safety, heat management, life-span etc. can not be guaranteed, and can not be widely used; Use super capacitor and cell parallel as the new-energy automobile of car load propulsion source or auxiliary power source, although brought into play the advantage of the two, but the quantity of the two does not reduce, and safety etc. still can not be guaranteed, and car load power-supply system cost becomes higher.
Summary of the invention
The purpose of this invention is to provide a kind of composite power source, too fast owing to the capacitive strike voltage drop to solve in the prior art, stored energy is not fully utilized, and causes the power-supply system high cost, and the battery use amount is too much, and the power-supply system potential safety hazard that causes becomes the problem of large and the lost of life.
For achieving the above object, the solution of the present invention is: a kind of composite power source, comprise a super capacitor group that is formed by the super capacitor series connection, a secondary battery or two secondary battery that above secondary battery is in series, a secondary battery is connected with described super capacitor group; Perhaps the plural secondary battery total secondary battery that consists of in parallel is connected with described super capacitor group.
Described composite power source also comprises power-supply management system, and the sampling setup that is used for gathering each monomer super capacitor voltage and monomer secondary battery voltage, and described sampling setup communication connects described power-supply management system.
That described composite power source comprises is in parallel with described secondary battery, be the independent charging paths of charging of super capacitor group, and string is provided with independent charging high-voltage relay, the described independent charging high-voltage relay of described power-supply management system control linkage on this charging paths.
Described each secondary battery all is in series with corresponding control high-voltage relay, the described control high-voltage relay of described power-supply management system control linkage.
Described sampling setup is connected with the power-supply management system communication by the CAN bus.
The present invention adopts the super capacitor group to connect with secondary battery, when the power-supply system sparking voltage reaches the electric motor starting lower voltage limit, electric weight in the super capacitor is approached emits fully, improve the degree of utilization of super capacitor, reduce the cost of power-supply system, owing to having used super capacitor to reduce the use amount of battery, having improved Security of the system.The battery use of connecting with super capacitor, the management by power-supply management system can make battery operated in best SOC district, has prolonged the service life of battery.
Secondary battery can but to be not limited to be lead-acid battery, Ni-MH battery, lithium ion battery, lithium polymer battery etc., in order to cooperate the horsepower characteristic of super capacitor, above-mentioned secondary battery can adopt larger capacity batteries, the mode that also can adopt small-capacity cells to be connected in parallel.
The composite power source long period that super capacitor is connected with battery is the time spent not, because the super capacitor self-discharge is larger, the electric weight in the super capacitor and the carrying capacity of battery may not mate, and do not mate when power-supply management system detects, when car load charges to power-supply system, power-supply management system control is the charging high-voltage relay separately, switches charge circuit, separately super capacitor is charged, when the super capacitor electric weight reaches requirement, commutation circuit, super capacitor is worked with battery, consists of composite power source.
Description of drawings
Fig. 1 is the schematic circuit diagram of embodiment 1;
The schematic circuit diagram of Fig. 2 embodiment 2.
The specific embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
Embodiment 1
A kind of composite power source as shown in Figure 1 comprises super capacitor group and a secondary battery that is formed by the secondary battery series connection that is formed by the super capacitor series connection, and secondary battery is connected with the super capacitor group.Composite power source also comprises power-supply management system, and the sampling setup that is used for gathering each monomer super capacitor and monomer secondary battery voltage, sampling setup is connected by the CAN bus communication with power-supply management system, power-supply management system not only can the monitoring super capacitance voltage, secondary battery voltage, can also monitoring temperature, SOC, electric current etc.Secondary battery is in parallel with a charging paths, and this charging paths can the bypass secondary battery, and for the super capacitor group is charged separately, string is provided with a separately charging high-voltage relay on this charging paths.The power-supply management system control linkage high-voltage relay that charges separately.Also be provided with the control high-voltage relay on the main line of composite power source, when the high-voltage relay that charges separately disconnection, the adhesive of control high-voltage relay, composite power source discharges to external world as a whole or accepts charging.
The mode of operation of composite power sources is described below in conjunction with the various operating modes of automobile.
Operating mode 1: system does not use for a long time, the first use, it is excessively low that power-supply management system detects super capacitor voltage group by inner CAN line, the SOC of secondary battery is moderate, power-supply management system sends the charging request, car load charges to composite power source, after reaching the regulation charging valtage, power-supply management system sends and stops the charging request, and composite power source is in dormant state; When detecting secondary battery SOC by inner CAN line, power-supply management system is in upper control limit and super capacitor group voltage below level, power-supply management system control control high-voltage relay disconnects, the charging high-voltage relay is connected separately simultaneously, send the charging request, the rechargeable energy that car load provides only offers the super capacitor group, super capacitor group voltage reaches in limited time, and power-supply management system sends and stops the charging request, and composite power source is in dormant state.
Operating mode 2: when car load started, composite power source output electric energy drove starter motor, drives driving engine or main motor, and car load is started.
Operating mode 3: during the car load low cruise, composite power source drives main motor, make the car load operation under the pure motoring condition, when detecting composite power source voltage, power-supply management system is lower than setting down in limited time, send the charging request, engine starting drives the electrical generator generating and is the composite power source charging, composite power source voltage reaches and stops charging in limited time, continues to drive car load by composite power source.
Operating mode 4: when car load traveled at the uniform speed, car load was by engine drive, when power-supply management system detects the composite power source low voltage, send the charging request, the driven by engine battery charger is the charging of whole composite power source, be charged to suitable voltage after, composite power source is in dormant state.
Operating mode 5: car load accelerates or climbs when moving, and composite power source drives main motor and drives car load acceleration or climbing with driving engine.
Operating mode 6: when car load deceleration or braking, the electric energy that electrical generator produces is filled with in the whole composite power source, and energy is reclaimed.
Embodiment 2
Such as Fig. 2, when the self-discharge rate of secondary battery and super capacitor does not mate, in the composite power source a plurality of secondary battery can be set, connect with the super capacitor group after the secondary battery parallel connection.Each secondary battery all is in series with corresponding control high-voltage relay, and each is controlled high-voltage relay and all is controlled by power-supply management system.By controlling the switching array mode of these control high-voltage relays, can realize secondary battery and the super capacitor combination of varying number; Also be conducive to maintenance, can carry out a certain group of secondary battery separately when making maintenance, system still can power.A plurality of secondary battery parallel connections are avoided because excessive secondary battery heating and the lost of life of causing of electric current to improve the power out-put characteristic of secondary battery.
As other embodiments, if there is not self-discharge difference between super capacitor and the secondary battery, then composite power source can be unworthy of the stand by power source management system and by the high-voltage relay of power-supply management system control.
Claims (5)
1. a composite power source is characterized in that, comprises a super capacitor group that is formed by the super capacitor series connection, a secondary battery or two secondary battery that above secondary battery is in series, and a secondary battery is connected with described super capacitor group; Perhaps the plural secondary battery total secondary battery that consists of in parallel is connected with described super capacitor group.
2. a kind of composite power source according to claim 1, it is characterized in that, described composite power source also comprises power-supply management system, and the sampling setup that is used for gathering each monomer super capacitor voltage and monomer secondary battery voltage, and described sampling setup communication connects described power-supply management system.
3. a kind of composite power source according to claim 2, it is characterized in that, that described composite power source comprises is in parallel with described secondary battery, be the independent charging paths of charging of super capacitor group, string is provided with independent charging high-voltage relay, the described independent charging high-voltage relay of described power-supply management system control linkage on this charging paths.
4. a kind of composite power source according to claim 1 is characterized in that, described each secondary battery all is in series with corresponding control high-voltage relay, the described control high-voltage relay of described power-supply management system control linkage.
5. a kind of composite power source according to claim 2 is characterized in that, described sampling setup is connected with the power-supply management system communication by the CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038079.2A CN103072488B (en) | 2013-01-31 | 2013-01-31 | Composite power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038079.2A CN103072488B (en) | 2013-01-31 | 2013-01-31 | Composite power source |
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| CN103072488A true CN103072488A (en) | 2013-05-01 |
| CN103072488B CN103072488B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310038079.2A Expired - Fee Related CN103072488B (en) | 2013-01-31 | 2013-01-31 | Composite power source |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825325A (en) * | 2014-02-10 | 2014-05-28 | 广西三立科技发展有限公司 | Super-capacitor system |
| CN107117040A (en) * | 2017-04-13 | 2017-09-01 | 江苏大学 | A kind of control device and control method driven for electric automobile with brakes |
| CN108482153A (en) * | 2018-03-28 | 2018-09-04 | 吉利汽车研究院（宁波）有限公司 | Hybrid vehicle is for electric installation, system and automobile |
| CN111152668A (en) * | 2020-01-08 | 2020-05-15 | 青岛昌轮变速器有限公司 | Dual hybrid battery pack suitable for motor driving apparatus |
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| JP2000181553A (en) * | 1998-12-14 | 2000-06-30 | Elna Co Ltd | Power source circuit using capacitor |
| CN101357592A (en) * | 2008-09-04 | 2009-02-04 | 上海中上汽车科技有限公司 | Vehicle power for driving electric wheel driven vehicle and entire vehicle electric and drive control system |
| CN101714785A (en) * | 2009-12-18 | 2010-05-26 | 深圳市今朝时代新能源技术有限公司 | Voltage regulation method of power supply system containing super capacitor |
| CN101716879A (en) * | 2009-12-18 | 2010-06-02 | 深圳市今朝时代新能源技术有限公司 | Method for charging and discharging super capacitor module of a hybrid power automobile |
| CN101752620A (en) * | 2009-12-23 | 2010-06-23 | 奇瑞汽车股份有限公司 | Vehicle-mounted lithium battery charging system |
| CN201594767U (en) * | 2009-12-18 | 2010-09-29 | 深圳市今朝时代新能源技术有限公司 | Electric automobile power supply system comprising super capacitor |
| WO2011042785A1 (en) * | 2009-10-05 | 2011-04-14 | パナソニック電工株式会社 | Electric power management system |
| CN203157751U (en) * | 2013-01-31 | 2013-08-28 | 郑州宇通客车股份有限公司 | Hybrid power supply system |
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2013
- 2013-01-31 CN CN201310038079.2A patent/CN103072488B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000181553A (en) * | 1998-12-14 | 2000-06-30 | Elna Co Ltd | Power source circuit using capacitor |
| CN101357592A (en) * | 2008-09-04 | 2009-02-04 | 上海中上汽车科技有限公司 | Vehicle power for driving electric wheel driven vehicle and entire vehicle electric and drive control system |
| WO2011042785A1 (en) * | 2009-10-05 | 2011-04-14 | パナソニック電工株式会社 | Electric power management system |
| CN101714785A (en) * | 2009-12-18 | 2010-05-26 | 深圳市今朝时代新能源技术有限公司 | Voltage regulation method of power supply system containing super capacitor |
| CN101716879A (en) * | 2009-12-18 | 2010-06-02 | 深圳市今朝时代新能源技术有限公司 | Method for charging and discharging super capacitor module of a hybrid power automobile |
| CN201594767U (en) * | 2009-12-18 | 2010-09-29 | 深圳市今朝时代新能源技术有限公司 | Electric automobile power supply system comprising super capacitor |
| CN101752620A (en) * | 2009-12-23 | 2010-06-23 | 奇瑞汽车股份有限公司 | Vehicle-mounted lithium battery charging system |
| CN203157751U (en) * | 2013-01-31 | 2013-08-28 | 郑州宇通客车股份有限公司 | Hybrid power supply system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825325A (en) * | 2014-02-10 | 2014-05-28 | 广西三立科技发展有限公司 | Super-capacitor system |
| CN107117040A (en) * | 2017-04-13 | 2017-09-01 | 江苏大学 | A kind of control device and control method driven for electric automobile with brakes |
| CN108482153A (en) * | 2018-03-28 | 2018-09-04 | 吉利汽车研究院（宁波）有限公司 | Hybrid vehicle is for electric installation, system and automobile |
| CN111152668A (en) * | 2020-01-08 | 2020-05-15 | 青岛昌轮变速器有限公司 | Dual hybrid battery pack suitable for motor driving apparatus |
| CN111152668B (en) * | 2020-01-08 | 2023-01-13 | 青岛昌轮变速器有限公司 | Dual hybrid battery pack suitable for motor driving apparatus |
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| Publication number | Publication date |
|---|---|
| CN103072488B (en) | 2015-06-10 |
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