CN102088200A - Solar active equalization storage battery device of electrocar - Google Patents
Solar active equalization storage battery device of electrocar Download PDFInfo
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- CN102088200A CN102088200A CN2011100232880A CN201110023288A CN102088200A CN 102088200 A CN102088200 A CN 102088200A CN 2011100232880 A CN2011100232880 A CN 2011100232880A CN 201110023288 A CN201110023288 A CN 201110023288A CN 102088200 A CN102088200 A CN 102088200A
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Abstract
The invention relates to a solar active equalization storage battery device of an electrocar, the device comprises a storage battery pack, a solar battery component, a controller, a charging circuit and a plurality of analogue switches, the controller cyclically detects voltage of each storage battery by controlling the analogue switches and charges a storage battery having the lowest voltage by controlling the charging circuit so as to realize active equalization of the storage battery pack, thereby prolonging the service life of the storage battery and saving the energy source as well.
Description
Technical field
The present invention relates to the balanced accumulator plant of solar energy active of a kind of accumulator plant, particularly a kind of electric motor car.
Background technology
Electric motor car is the new traffic tool of the following direction of representative, and the bottleneck that the restriction electric motor car is promoted is the expensive and low life-span of storage battery.High-end electric motor car adopts lithium battery, and the low side electric motor car adopts lead acid accumulator.
The lead acid accumulator that the low side electric motor car adopts generally all is that a plurality of storage battery series connection are used the back in groups, even better through the consistency of screening storage battery in groups, also difference can occur after use after a while.
The way of traditional accumulator plant equalizing voltage is to improve charging voltage (promptly so-called " overcharging "), charging later stage electric current descends gradually, finish equalizing charge when charging current no longer descends, transfer floating charge to, this balanced way is become " passive equilibrium ".This balanced way is more effective to single storage battery, but concerning batteries, the cost of being paid is the high storage battery meeting dehydration of voltage, energy loss is big, periodic equilibrium causes damage to storage battery, and battery capacity is descended, even causes the thermal runaway of storage battery.
Continuous development along with electric motor car, car battery need frequently discharge and recharge, discharging current and depth of discharge tradition application all improve a lot, and batteries is not done equilibrium or adopted traditional equalization methods can not satisfy the demand, and the cycle life of storage battery and rated life time can differ greatly.
In recent years along with the improving constantly of the continuous development of solar battery technology, solar module generating efficiency, solar module also more and more widely be applied to different fields, solar electric vehicle is exactly good proof.
Solar module is installed at certain position of electric motor car, under the fine situation of weather, for electric motor car provides the electric energy of a part, is the main design thought of solar electric vehicle.
But, in actual applications, the application of solar module also faces following problem: first, be subjected to the restriction of electric motor car space, position, the installed capacity of solar module can not be too big, the electric energy of this part that therefore causes that solar module sends is less, and concerning whole electric motor car energy needed, proportion is little.The second, the electric energy that solar module sends is less to the charging current of batteries.As: the operating voltage of electric motor car mostly be 36V～96V (3～8 joint 12V lead acid accumulator), and the optimum operating voltage of the electric energy that single solar module sends is generally about 17V, after carrying out boosting inverter, when batteries is charged, charging current is less, and charging effect is unsatisfactory.
Summary of the invention
Be applied in time existing deficiency in the electric motor car at existing common lead acid accumulator and solar module, the present invention proposes a kind of balanced accumulator plant of solar energy active of electric motor car, this accumulator plant can avoid traditional because the unbalanced battery malfunction that causes of storage battery, the generation of problems such as energy loss is big, and cell batteries performance and life-span are short.
The present invention adopts following technical scheme: the solar energy of this electric motor car initiatively balanced accumulator plant comprises: the batteries that is in series by the polylith storage battery, the initiatively solar module of equalizing voltage is provided, controller, charging circuit, be respectively applied for and detect first of battery tension and solar module output voltage, the 2nd A/D modular converter, first, second hilted broadsword is thrown analog switch more, the temperature sensor of dpdt double-pole double-throw (DPDT) analog switch and measures ambient temperature, wherein, the polylith batteries is cascaded provides work required electric energy for electric motor car, the positive pole of polylith storage battery is connected with a plurality of fixed contacts that first hilted broadsword is thrown analog switch more respectively, the negative pole of polylith storage battery is connected with a plurality of fixed contacts that second hilted broadsword is thrown analog switch more respectively, first, second hilted broadsword is thrown the moving contact moving contact connection of dpdt double-pole double-throw (DPDT) analog switch respectively of analog switch more, two groups of fixed contacts of dpdt double-pole double-throw (DPDT) analog switch are connected with an A/D modular converter and charging circuit respectively, charging circuit is connected with solar module and the 2nd A/D modular converter, solar module is connected with the 2nd A/D modular converter, the output of temperature sensor is connected with controller, in order to temperature signal is passed to controller, controller is connected with the output of the first and second A/D modular converters to receive the voltage data from them, the control signal output ends of controller and first, the 2nd A/D modular converter, charging circuit, dpdt double-pole double-throw (DPDT) analog switch and two hilted broadswords are thrown analog switch more and are connected.
Controller is thrown analog switch by controlling first and second hilted broadswords more, the voltage of every storage battery and the output voltage of solar module in the dpdt double-pole double-throw (DPDT) analog switch and the first and second A/D modular converter cycle detection batteries, judge the position of the minimum single storage battery of voltage, if the output voltage of solar module reaches monolithic charge in batteries required voltage, then controller will start charging circuit to choosing, the single charge in batteries that voltage is minimum, reach the said process that then circulates after the predetermined charging interval, thereby the voltage that reaches all storage batterys is equal substantially, realize initiatively balanced, treat batteries after a period of stabilisation, repeat above-mentioned active equalization operation.As the equal and minimum storage battery of voltage of two voltages appears, then select a certain storage battery to carry out aforesaid operations at random.
Accumulator plant can also be utilized the ambient temperature around the temperature sensor measurement storage battery, and controller is then controlled charging circuit according to measurement result in good time storage battery is done temperature-compensating.
The voltage detecting precision of storage battery and solar module is controlled in the 20mv, the precision of temperature sensor is controlled at ± 1 ℃ in.
Adopt the accumulator plant of technique scheme, can break away from because the unbalanced battery malfunction that causes of storage battery; Initiatively balanced batteries no longer needs the high pressure of passive equilibrium to overcharge, can reduce maximum charging voltage, can make the storage battery dehydration still less like this, prolong the life of storage battery, and reduce the possibility of storage battery thermal runaway greatly, reduce unnecessary energy loss; After certain battery damage in the batteries, this storage battery need only be changed, change and must not put in order group, can save many expenses.This accumulator plant will make new and old battery tension be consistent operate as normal.And owing to only carry out the active equilibrium treatment at single storage battery, the solar module variation that need not to boost reduces unnecessary energy loss.The variation owing to no longer boost, even battery component power is less, charging current is also relatively large, single storage battery is carried out the equalizing charge required time also can be shorter.As long as the electric energy (mainly being voltage request) that solar module sends meets the charging requirement of monolithic storage battery, can begin charging, make full use of the energy.
Description of drawings
Fig. 1 accumulator plant structure chart of the present invention
Wherein: 1-storage battery, 2-solar module, 3-controller, 4-the 2nd A/D modular converter, 5-the one A/D modular converter, 6-first hilted broadsword is thrown analog switch more, and 7-second hilted broadsword is thrown analog switch more, the 8-charging circuit, 9-dpdt double-pole double-throw (DPDT) analog switch, 10-temperature sensor.
Embodiment
As shown in Figure 1, polylith storage battery 1 is cascaded and forms batteries in order to provide electric energy to electric motor car, providing initiatively, the solar module 2 of equalizing voltage is connected with charging circuit 8, the positive pole of polylith storage battery is connected with a plurality of fixed contacts that first hilted broadsword is thrown analog switch 6 more respectively, the negative pole of polylith storage battery is connected with a plurality of fixed contacts that second hilted broadsword is thrown analog switch 7 more respectively, first, second hilted broadsword is thrown analog switch 6 more, 7 the moving contact moving contact of dpdt double-pole double-throw (DPDT) analog switch 9 respectively connects, first, second hilted broadsword is thrown analog switch 6 more, 7 and the signal input end of dpdt double-pole double-throw (DPDT) analog switch 9 be connected with controller 3, controller 3 output control signal control analog switches 6,7 and 9 action, the one group of fixed contact that makes the moving contact of double-point double-throw switch 9 be connected with input with an A/D modular converter 5 connects, output voltage with every storage battery of cycle detection 1, this magnitude of voltage is converted to digital signal through an A/D modular converter 5 and is delivered to controller 3, controller 3 is judged the position of the minimum single storage battery of voltage according to the input of an A/D modular converter 5, the output voltage of solar module 2 is converted to digital signal through the 2nd A/D modular converter 4 and is transported to controller 3, controller judges whether the output voltage of solar module 2 satisfies the charging requirement of monolithic storage battery, if meet the demands, then controller 3 one group of fixed contact making the moving contact of dpdt double-pole double-throw (DPDT) analog switch 9 be connected with voltage output end with charging circuit 8 connects, and controls the one the second hilted broadswords and throw analog switch 6 more, 7 charge to connect the minimum storage battery of voltage.Reach the said process that then circulates after the predetermined charging interval, thereby the voltage that reaches all storage batterys is equal substantially, realizes initiatively balanced.Treat batteries after a period of stabilisation, repeat above-mentioned active balancing procedure.In balancing procedure, equate and the minimum storage battery of voltage that as two voltages occurring then controller 3 selects a certain storage battery 1 to carry out aforesaid operations at random.
Simultaneously, accumulator plant also utilizes temperature sensor 10 to measure storage battery ambient temperature on every side, and 3 of controllers are controlled 8 pairs of storage batterys of charging circuit according to measurement result in good time and done temperature-compensating.In order to reach better active portfolio effect, storage battery with 1 and the voltage detecting precision of solar module 2 be controlled in the 20mv, the certainty of measurement of temperature sensor is controlled at ± 1 ℃ in.
More than specific descriptions of the present invention are intended to illustrate the implementation of specific embodiments can not be interpreted as it is limitation of the present invention.Those of ordinary skills can make various variants on the basis of the embodiment that describes in detail under instruction of the present invention, these variants all should be included within the design of the present invention.
Claims (5)
1. the solar energy of an electric motor car balanced accumulator plant initiatively, comprise: the batteries that is in series by polylith storage battery (1), the initiatively solar module (2) of equalizing voltage is provided, controller (3), charging circuit (8), be respectively applied for the first and second A/D modular converters (5 of gathering and changing storage battery and solar module output voltage, 4), first and second hilted broadswords are thrown analog switch (6 more, 7), the temperature sensor (10) of dpdt double-pole double-throw (DPDT) analog switch (9) and measures ambient temperature, wherein, the positive pole of described polylith storage battery (1) is connected with a plurality of fixed contacts that described first hilted broadsword is thrown analog switch (6) more respectively, the negative pole of described polylith storage battery (1) is connected with a plurality of fixed contacts that described second hilted broadsword is thrown analog switch (7) more respectively, described first, second hilted broadsword is thrown analog switch (6 more, 7) moving contact is connected with the moving contact of described dpdt double-pole double-throw (DPDT) analog switch (9) respectively, two groups of fixed contacts of described dpdt double-pole double-throw (DPDT) analog switch (9) are connected with the output of a described A/D modular converter (5) and described charging circuit (8) respectively, described charging circuit (8) is connected with described solar module (2) and described the 2nd A/D modular converter (4), described solar module (2) is connected with described the 2nd A/D modular converter (4), the output of described temperature sensor (10) is connected with described controller (3), in order to temperature signal is passed to described controller (3), described controller (3) and the described first and second A/D modular converters (5,4) output connects to receive the voltage data from them, the control signal output ends of described controller (3) and described first, the 2nd A/D modular converter (5,4), described charging circuit (8), described dpdt double-pole double-throw (DPDT) analog switch (9) and described two hilted broadswords are thrown analog switch (6 more, 7) connect, described controller (3) is thrown analog switch (6 by controlling described first and second hilted broadswords more, 7), described dpdt double-pole double-throw (DPDT) analog switch (9) and the described first and second A/D modular converters (5,4) output voltage of the voltage of every storage battery (1) and described solar module (2) in the cycle detection batteries, judge the position of the minimum single storage battery of voltage, if the output voltage of solar module (2) reaches the charging required voltage, then described controller (3) will start the voltage minimum single charge in batteries of charging circuit (8) to choosing, reach the said process that then circulates after the predetermined charging interval, thereby the voltage that reaches all storage batterys is equal substantially, realize the active equilibrium of batteries, treat batteries after a period of stabilisation, repeat above-mentioned active equalization operation.
2. device as claimed in claim 1 is characterized in that: also utilize described temperature sensor (10) measures ambient temperature, described controller (3) is then controlled charging circuit (8) according to measurement result in good time and is done temperature-compensating for storage battery.
3. device according to claim 1 and 2 is characterized in that: the voltage detecting precision for storage battery (1) and solar module (2) is controlled in the 20mv, the precision of temperature sensor is controlled at ± 1 ℃ in.
4. device according to claim 1 and 2 is characterized in that: if detect identically and magnitude of voltage is minimum more than 1 battery tension, then described controller (3) selects a storage battery to charge at random.
5. electric motor car, the solar energy that it is characterized in that including each described electric motor car among the claim 1-4 is balanced accumulator plant initiatively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110023288 CN102088200B (en) | 2011-01-20 | 2011-01-20 | Solar active equalization storage battery device of electrocar |
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| CN 201110023288 CN102088200B (en) | 2011-01-20 | 2011-01-20 | Solar active equalization storage battery device of electrocar |
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| CN102088200A true CN102088200A (en) | 2011-06-08 |
| CN102088200B CN102088200B (en) | 2012-12-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364667A (en) * | 2012-06-08 | 2015-02-18 | 罗伯特·博世有限公司 | Method for determining a state of wear of a battery module, battery management system, multi-phase battery system, and motor vehicle |
| CN104901373A (en) * | 2015-06-04 | 2015-09-09 | 深圳市爱兰博功率电子有限公司 | Balanced charger and balanced charging method |
| CN105226747A (en) * | 2015-09-22 | 2016-01-06 | 河南速达电动汽车科技有限公司 | A kind of batteries of electric automobile active equalization system of photovoltaic generation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6377024B1 (en) * | 2001-03-23 | 2002-04-23 | The Boeing Company | Method and system for charge equalization of lithium-ion batteries |
| CN201639320U (en) * | 2010-01-18 | 2010-11-17 | 上海东裕电动车有限公司 | Electric vehicle and solar charging device thereof |
| CN101931254A (en) * | 2010-08-31 | 2010-12-29 | 重庆大学 | Guasi-static equalizing charge system and method for serially connected lithium battery pack |
| CN201985564U (en) * | 2011-01-20 | 2011-09-21 | 潍坊广生新能源有限公司 | Solar active equalized storage battery device for electromobile and electromobile |
-
2011
- 2011-01-20 CN CN 201110023288 patent/CN102088200B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6377024B1 (en) * | 2001-03-23 | 2002-04-23 | The Boeing Company | Method and system for charge equalization of lithium-ion batteries |
| CN201639320U (en) * | 2010-01-18 | 2010-11-17 | 上海东裕电动车有限公司 | Electric vehicle and solar charging device thereof |
| CN101931254A (en) * | 2010-08-31 | 2010-12-29 | 重庆大学 | Guasi-static equalizing charge system and method for serially connected lithium battery pack |
| CN201985564U (en) * | 2011-01-20 | 2011-09-21 | 潍坊广生新能源有限公司 | Solar active equalized storage battery device for electromobile and electromobile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364667A (en) * | 2012-06-08 | 2015-02-18 | 罗伯特·博世有限公司 | Method for determining a state of wear of a battery module, battery management system, multi-phase battery system, and motor vehicle |
| CN104364667B (en) * | 2012-06-08 | 2017-06-13 | 罗伯特·博世有限公司 | Method, battery management system, multiphase battery system and motor vehicle for determining the loss state of battery module |
| CN104901373A (en) * | 2015-06-04 | 2015-09-09 | 深圳市爱兰博功率电子有限公司 | Balanced charger and balanced charging method |
| CN104901373B (en) * | 2015-06-04 | 2018-07-13 | 深圳市爱兰博功率电子有限公司 | Balance-type charger and method |
| CN105226747A (en) * | 2015-09-22 | 2016-01-06 | 河南速达电动汽车科技有限公司 | A kind of batteries of electric automobile active equalization system of photovoltaic generation |
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| CN102088200B (en) | 2012-12-12 |
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