CN203827003U - Series connection storage battery group charge and discharge equalizing system - Google Patents
Series connection storage battery group charge and discharge equalizing system Download PDFInfo
- Publication number
- CN203827003U CN203827003U CN201420069387.1U CN201420069387U CN203827003U CN 203827003 U CN203827003 U CN 203827003U CN 201420069387 U CN201420069387 U CN 201420069387U CN 203827003 U CN203827003 U CN 203827003U
- Authority
- CN
- China
- Prior art keywords
- current
- reverse
- pin
- current switch
- charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004065 semiconductor Substances 0.000 claims description 9
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 208000028659 discharge Diseases 0.000 description 21
- 238000007599 discharging Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Abstract
The utility model relates to a series connection storage battery group charge and discharge equalizing system comprising a system control unit, current generators and a storage battery group. The series connection storage battery group charge and discharge equalizing system is characterized in that the storage battery group consists of a number of storage batteries that are connected in series, each of the storage batteries other than the topmost one is connected with one current generator, and each current generator is connected with the control unit and is controlled by the control unit; the current generators consist of forward current switches, forward follow current devices, reverse current switches, reverse follow current devices and current equalizing devices; one ends of the current equalizing devices are connected to output ends of the current generators; the other ends are connected with the forward current switches, the forward follow current devices, the reverse current switches and the reverse follow current devices; the forward current switches are connected with the forward follow current devices in parallel, and the reverse current switches are connected with the reverse follow current devices in parallel. The series connection storage battery group charge and discharge equalizing system is advantageous in that when the system is charged, batteries different in capacity can be charged in an individualized manner, and that each battery can be fully charged is ensured; when the system is discharged, batteries low in capacity can be subjected to current compensation and can be prolonged in discharge time, and electric energy of batteries high in capacity can be released as much as possible.
Description
Technical field
The utility model relates to a kind of charge and discharge balancing technology of series-connected batteries.
Background technology
Batteries is widely used in the fields such as electric power, telecommunications, building, electric automobile, naval vessel, space flight, back-up source as system uses, batteries adopts the connected mode of series connection mostly, due to the quality discrepancy of battery, after causing repeatedly discharging and recharging, part battery capacity declines, the phenomenon that even exists part to damage.If there is the battery damaging in the battery pack of series connection, in the time of electric discharge, can cause system to start too early discharge prevention; and stop discharging; now most of good battery, still have the capacity of a lot of affluences not to be released, and the system making does not play the effect of due stand-by power supply.In the time of charging, because the low battery of capacity is more early full of, cause system to enter floating charge state, battery capacious so just can not be full of.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of charge and discharge balancing system with series-connected batteries is provided, and this system, in the time of charging, can be carried out personalization charging to the battery of different capabilities, guarantees that each battery all can be full of.In the time of electric discharge, can also carry out current compensation to the low battery of capacity, make the battery of low capacity can extend discharge time, the battery energy capacity of high power capacity discharges as far as possible.Under extreme case, if there are indivedual batteries open circuits when electric discharge, native system still can continuous discharge, until battery capacity drains.
System described in the utility model is input as direct current, and during by the charging input end of the system of the output access of battery pack, system can realize the equilibrium control in discharge process.Due to this programme need not Switching Power Supply, transformer, therefore system have powerful, the advantage that cost is low.
The utility model is achieved through the following technical solutions: a kind of cell Equalization Methods for Charge of series-connected batteries, comprise the storage battery and the power supply that is connected to N storage battery two ends of connecting of N series connection, it is characterized in that: a controller is set, N-1 current feedback circuit of controller control connection, current feedback circuit is attempted by between two storage batterys, current feedback circuit can to and connect end the input or output current, current feedback circuit has an output current end to connect positive terminal or the negative terminal of power supply.When power supply is put the charge in batteries of N series connection, the detection of dynamic data of storage battery are sent controller, be connected to the current feedback circuit at the upper and lower two ends of storage battery under the control of controller, rated current curve according to accumulator cell charging and discharging is dynamically adjusted the current value discharging and recharging, and meets this accumulator cell charging and discharging optimum state.The current feedback circuit that the first storage battery of the storage battery of N series connection is only connected by its rear end is dynamically adjusted the current value discharging and recharging.The current feedback circuit that an end storage battery of the storage battery of N series connection is only connected by its front end is dynamically adjusted the current value discharging and recharging.Realize the charge and discharge balancing system of the series-connected batteries of method described in claim 1, comprise system control unit 1, current feedback circuit 2, storage battery 3 (or battery module 9), it is characterized in that: batteries is composed in series by some joint storage batterys 3 (or battery module 9), each storage battery 3 (or battery module 9) is connected to respectively a current feedback circuit 2.Current feedback circuit 2 connects charging input anodal 5 and charging input negative pole 8, and M pin and the P pin of each current feedback circuit 2 are connected to control unit.Comprise forward current switch 11 and forward afterflow device 12, reverse current switch 13 and oppositely afterflow device 14 and current equalizer 15, it is characterized in that: one end of current equalizer 15 is connected to output pin O pin, one end connects forward current switch 11, forward afterflow device 12, reverse current switch 13, reverse afterflow device 14 in addition.Forward current switch 11 is in parallel with forward afterflow device 12.Reverse current switch 13 and reverse afterflow device 14.The control end of forward current switch 11 is connected to P pin.The control pin of reverse current switch 13 is connected to M pin.Wherein forward current switch, reverse current switch, can realize with metal-oxide-semiconductor.Forward afterflow device, reverse afterflow device can be realized with diode.Wherein forward current switch, forward afterflow device can be realized with the metal-oxide-semiconductor with integrated fly-wheel diode, reverse current switch, and oppositely afterflow device can be realized with the metal-oxide-semiconductor with integrated fly-wheel diode.Current equalizer 15 can be realized with inductance.Can also adopt hierarchy, regard the charge and discharge balancing system of series-connected batteries described in claims 2 as a battery module 9, multiple battery modules 9 connect according to the structure of charge and discharge balancing system described in claims 2, form the nested system configuration of cascade.
The utlity model has following beneficial effect: 1, simple in structure, in current feedback circuit 2, forward current switch 11 and forward afterflow device 12, reverse current switch 13 and reverse afterflow device 14 can adopt the metal-oxide-semiconductor of integrated fly-wheel diode, now current feedback circuit 2 only has three elements, simple in structure, cheap, powerful.2, this system, in the time of charging, can be carried out personalization charging to the battery of different capabilities, guarantees that each battery all can be full of.3 in the time of electric discharge, can carry out current compensation to the low battery of capacity if the output of batteries is connected to charging input 5, makes the battery of low capacity can extend discharge time, and the battery energy capacity of high power capacity discharges as far as possible.Under extreme case, if there are indivedual batteries open circuits when electric discharge, native system still can continuous discharge, until battery capacity drains.3, this technology can also connect in classification, it is a battery module 9 that one group of circuit as shown in figure mono-is regarded as, storage battery 3 in alternate figures one, the more massive batteries of rear formation, as shown in Figure 3, the charging voltage that only need bear battery module 9 due to the metal-oxide-semiconductor in the current feedback circuit 2 of each battery module 9 inside, and without bearing charging input voltage total in figure tri-, therefore can select conducting resistance less, withstand voltage lower, the metal-oxide-semiconductor that cost is lower, the therefore system syndeton of this classification, can further reduce the cost of system.
Brief description of the drawings
Accompanying drawing 1 is systematic schematic diagram of the present utility model.
Accompanying drawing 2 is current feedback circuit schematic diagram of the present utility model.
Accompanying drawing 3 is multilevel system catenation principle figure of the present utility model.
Below in conjunction with embodiment, the utility model is elaborated.
Embodiment
A kind of cell Equalization Methods for Charge of series-connected batteries, comprise the storage battery and the power supply that is connected to N storage battery two ends of connecting of N series connection, it is characterized in that: a controller is set, N-1 current feedback circuit of controller control connection, current feedback circuit is attempted by between two storage batterys, current feedback circuit can to and connect end the input or output current, current feedback circuit has an output current end to connect positive terminal or the negative terminal of power supply.When power supply is put the charge in batteries of N series connection, the detection of dynamic data of storage battery are sent controller, be connected to the current feedback circuit at the upper and lower two ends of storage battery under the control of controller, rated current curve according to accumulator cell charging and discharging is dynamically adjusted the current value discharging and recharging, and meets this accumulator cell charging and discharging optimum state.The current feedback circuit that the first storage battery of the storage battery of N series connection is only connected by its rear end is dynamically adjusted the current value discharging and recharging.The current feedback circuit that an end storage battery of the storage battery of N series connection is only connected by its front end is dynamically adjusted the current value discharging and recharging.A kind of charge and discharge balancing system of series-connected batteries, as figure mono-, comprises that control unit 1, current feedback circuit 2, storage battery 3 form, and is characterized in that: more piece storage battery 3 adopts the mode that is connected in series.The output O pin of each current feedback circuit 2 connects corresponding battery positive voltage 6.The V pin of current feedback circuit 2 connects charging input positive pole 5, and the G pin of current feedback circuit 2 connects charging input negative pole 8.P pin and the M pin of all current feedback circuits 2 are connected to control unit 1.Many one than current feedback circuit 2 quantity of storage battery 3 quantity, the storage battery 3 of the top of series-connected batteries does not connect current feedback circuit 2, directly connects charging input anodal 5.
Control unit 1 is one and has the circuit module that drives multiple current switches, can control the size and Orientation of the output current of each current feedback circuit 2.
As shown in Figure 2, by forward current switch 11 and forward afterflow device 12, reverse current switch 13 and oppositely afterflow device 14 and current equalizer 15 form the structure of current feedback circuit 2.One end of current equalizer 15 is connected to output pin O pin, and one end connects forward current switch 11, forward afterflow device 12, reverse current switch 13, reverse afterflow device 14 in addition.Forward current switch 11 is in parallel with forward afterflow device 12.Reverse current switch 13 is with oppositely afterflow device 14 is in parallel.The control end of forward current switch 11 is connected to P pin.The control pin of reverse current switch 13 is connected to M pin.Forward afterflow device 12 and the oppositely effect of afterflow device 14 are: in the time that forward current switch 11, reverse current switch 13 are closed for current equalizer 15 in electric current the path of releasing is provided.
When current feedback circuit 2 normal use, V pin connects anodal 5, the G pin connection of charging input charging input negative pole 8.M pin, P pin connection control unit 1.Output pin O pin is connected to anode.When circuit working, anodal 5 current potentials of charging input should be higher than the current potential of output pin O pin, and the current potential of output pin O pin is higher than the current potential of charging input negative pole 8.The effect of current equalizer 15 is electric currents of stable output.
When 11 conductings of forward current switch and reverse current switch 13 while disconnecting, due to the voltage difference of V pin and O pin, and on current equalizer 15, produce the electric current that flows out O pin, now when forward current switch 11 disconnects, self-reversal afterflow device 14 provides the electric current of current equalizer 15, therefore in the time there is the square wave of consecutive PWM of appropriate frequency and suitable duty ratio on P pin, on O pin, controlled outflow electric current continuously will be produced.
Otherwise, when 13 conductings of reverse current switch and forward current switch 11 while disconnecting, due to the voltage difference of O pin and G pin, and on current equalizer 15, produce the electric current that flows into O pin, now when reverse current switch 13 disconnects, the electric current of current equalizer 15 is provided from forward afterflow device 12, therefore, in the time there is the square wave of consecutive PWM of appropriate frequency and suitable duty ratio on M pin, on O pin, will produces controlled inflow current continuously.
From forward afterflow device 12 or the electric current that oppositely afterflow device 14 flows through the energy between balanced each battery is also had to important function, with the currents combination control in current equalizer 15, can realize equalizing charge or balanced discharge to every batteries.
Especially, if in the time that forward afterflow device 12 has electric current to flow through, close forward current switch 11.And in the time that oppositely afterflow device 14 has electric current to flow through, close reverse current switch 13.To contribute to greatly to reduce the power consumption of reverse afterflow device 14, forward afterflow device 12, can system effectiveness reach higher.
Therefore current feedback circuit can produce the controlled electric current of size and Orientation.In the time of connected system according to the method described above, except the storage battery 3 of epimere, each storage battery 3 connects a current feedback circuit 2, those skilled in the art is understood that according to circuit theory if can control the electric current of each current feedback circuit 2, can controls the electric current that flows through each storage battery.
Claims (6)
1. the charge and discharge balancing system of series-connected batteries, comprise system control unit (1), current feedback circuit (2), storage battery (3) or battery module (9), it is characterized in that: batteries is composed in series by some joint storage batterys (3) or battery module (9), each storage battery (3) or battery module (9) are connected to respectively a current feedback circuit (2); Current feedback circuit (2) connects charging input anodal (5) and charging input negative pole (8), and M pin and the P pin of each current feedback circuit (2) are connected to control unit.
2. by the charge and discharge balancing system of series-connected batteries claimed in claim 1, it is characterized in that: described current feedback circuit (2), comprise forward current switch (11) and forward afterflow device (12), reverse current switch (13) and oppositely afterflow device (14) and current equalizer (15), one end of current equalizer (15) is connected to output pin O pin, and one end connects forward current switch (11), forward afterflow device (12), reverse current switch (13), reverse afterflow device (14) in addition; Forward current switch (11) is in parallel with forward afterflow device (12); Reverse current switch (13) and reverse afterflow device (14); The control end of forward current switch (11) is connected to P pin; The control pin of reverse current switch (13) is connected to M pin.
3.
pressthe charge and discharge balancing system of series-connected batteries claimed in claim 2, is characterized in that: wherein forward current switch, reverse current switch, can realize with metal-oxide-semiconductor; Forward afterflow device, reverse afterflow device are realized with diode.
4.
pressthe charge and discharge balancing system of series-connected batteries claimed in claim 2, it is characterized in that: wherein forward current switch, forward afterflow device can be realized with the metal-oxide-semiconductor with integrated fly-wheel diode, reverse current switch, oppositely afterflow device is realized with the metal-oxide-semiconductor with integrated fly-wheel diode.
5.
pressthe charge and discharge balancing system of series-connected batteries claimed in claim 2, is characterized in that: current equalizer (15) is realized with inductance.
6.
pressthe charge and discharge balancing system of series-connected batteries claimed in claim 1, it is characterized in that: adopt hierarchy, regard the charge and discharge balancing system of series-connected batteries described in claim 1 as a battery module (9), multiple battery modules (9) connect according to the structure of charge and discharge balancing system described in claim 1, form the nested system configuration of cascade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069387.1U CN203827003U (en) | 2014-02-18 | 2014-02-18 | Series connection storage battery group charge and discharge equalizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069387.1U CN203827003U (en) | 2014-02-18 | 2014-02-18 | Series connection storage battery group charge and discharge equalizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203827003U true CN203827003U (en) | 2014-09-10 |
Family
ID=51482465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420069387.1U Expired - Lifetime CN203827003U (en) | 2014-02-18 | 2014-02-18 | Series connection storage battery group charge and discharge equalizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203827003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505663A (en) * | 2016-11-04 | 2017-03-15 | 李锐 | Series battery equalizing system and its method |
-
2014
- 2014-02-18 CN CN201420069387.1U patent/CN203827003U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505663A (en) * | 2016-11-04 | 2017-03-15 | 李锐 | Series battery equalizing system and its method |
| CN106505663B (en) * | 2016-11-04 | 2019-01-25 | 重庆雅讯电源技术有限公司 | Series-connected cell group equilibrium system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109510319B (en) | Energy storage battery system composed of super capacitor, lithium battery and lead-acid battery | |
| CN104201744A (en) | Equalizing charge circuit and battery pack | |
| CN203840581U (en) | LED lamp driving power supply having redundancy function | |
| CN103606998A (en) | Cell voltage equalizing control method using dynamic reference | |
| CN203104011U (en) | Charge/discharge managing and equalizing system for storage battery or capacitor | |
| CN109245220A (en) | A kind of the charge and discharge current limliting battery pack parallel control device and control method of minimal switches | |
| CN108321889A (en) | Super capacitance cell equilibrium high efficiency power system and its method of supplying power to | |
| CN209088562U (en) | A kind of charge and discharge current limliting battery pack parallel control device of minimal switches | |
| CN104270085A (en) | DC/DC conversion circuit in solar photovoltaic power generation system | |
| CN105006860A (en) | Controllable charge and discharge apparatus and voltage-equalizing circuit of a supercapacitor based on apparatus | |
| CN202856422U (en) | Bidirectional electrical energy transfer circuit | |
| CN204794241U (en) | Controllable discharge device that fills reaches equalizer circuit based on super capacitor of this device | |
| CN203827003U (en) | Series connection storage battery group charge and discharge equalizing system | |
| CN201402990Y (en) | Storage battery equalizer | |
| CN103647314B (en) | A kind of super-capacitor charge protection device | |
| CN203760568U (en) | Circuit structure for inhibiting impact current of vanadium battery energy storage system | |
| CN203911511U (en) | Parallel charging circuit for multiple lithium batteries | |
| CN207573066U (en) | A kind of photovoltaic energy storage type DC charging column | |
| CN203827031U (en) | Battery group equalization circuit based on multi-secondary transformer | |
| CN103607004B (en) | The two-way non-dissipative equalizing of accumulator battery and pulse activated system | |
| CN203339947U (en) | Switch circuit and communication power supply | |
| CN106849332B (en) | Charging control method of uninterruptible power supply | |
| CN202153651U (en) | High-voltage energy storage device of off-grid new energy power generation system | |
| CN104852411A (en) | Cascade storage battery charge/discharge balancing system | |
| CN104716674A (en) | Charging and discharging compensation system for series storage battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160906 Address after: 201507, 5, building 343, building 3688, Ting Wei Road, Cao Jing Town, Shanghai, Jinshan District Patentee after: Shanghai Baoxing Yimaijie Enterprise Development Co.,Ltd. Address before: Fengxian District Zhelin town Shanghai City Hu Zhuang 200032 branch No. 67 building fifth Patentee before: BAOXING ELECTRIC (SHANGHAI) CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170516 Address after: 200237, Shanghai, Minhang District Hongmei South Road, No. 1755, a layer of PA1057 room Patentee after: SHANGHAI YIYU ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 201507, 5, building 343, building 3688, Ting Wei Road, Cao Jing Town, Shanghai, Jinshan District Patentee before: Shanghai Baoxing Yimaijie Enterprise Development Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200237 room pa1057, 1st floor, building 1, 1755 Hongmei South Road, Minhang District, Shanghai Patentee after: Baoxing Intelligent Technology (Shanghai) Co.,Ltd. Address before: 200237 room pa1057, 1st floor, building 1, 1755 Hongmei South Road, Minhang District, Shanghai Patentee before: SHANGHAI YIYU ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |