CN201975483U - Discharging energy recycling system - Google Patents
Discharging energy recycling system Download PDFInfo
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- CN201975483U CN201975483U CN2011200957626U CN201120095762U CN201975483U CN 201975483 U CN201975483 U CN 201975483U CN 2011200957626 U CN2011200957626 U CN 2011200957626U CN 201120095762 U CN201120095762 U CN 201120095762U CN 201975483 U CN201975483 U CN 201975483U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a discharging energy recycling system which comprises an energy management unit and N substrates which are arranged side by side. The N substrates which are arranged side by side are respectively connected with the energy management unit through communication buses, wherein N is a natural number greater than 1. The discharging energy recycling system has high reliability, strong adaptability, low technical loss and high recovery efficiency.
Description
Technical field
The present invention relates to a kind of discharge energy recovery and utilize system again, belong to the technical field that the lithium ion battery battery energy recovery is utilized again.
Background technology
Lithium ion polymer secondary cell is a kind of advanced battery that grows up in early 1990s, and it has the voltage height, specific energy is big, the life-span is long and characteristics such as memory-less effect.Since 1991, the following battery of 2AH capacity obtains extensive use on mobile phone, notebook computer and 8mm video camera, and its electrical property and security performance are accepted by the user.
Be directed to the charging/discharging apparatus of lithium ion battery, the producer of domestic production is also a lot, and a day electrical equipment academy of sciences, the reliable instrument plant in Hangzhou or the like are held up in the more famous Guangzhou that has.Traditional numerous Electrical Discharge Machines do not possess energy recovery and utilize these characteristics again, in general, the electric energy that lithium battery discharges all directly consumes on consumption-type devices such as power resistor, so not only cause wasting on the electric energy, the heating of consumers such as power resistor also can exert an influence to performances such as the precision of equipment, stability.
Discharge energy recovery re-use device is combined with virtual technical device, power electronic technology and singlechip technology, and the electric energy that lithium battery discharges is changed, stores, utilized.Promptly in traditional lithium ion battery constant-current discharge process procedure, directly the energy of loss on consumption-type devices such as power resistor finished the recycling process.
Nowadays, global warming trend is day by day serious, and each state is all in the action of supporting energy-saving and emission-reduction energetically, and the discharge energy recovery is utilized arising at the historic moment of system again, has not only broken traditional Design Thinking, also meets the energy-saving and emission-reduction theory.
Summary of the invention
The present invention seeks to provides a kind of discharge energy recovery to utilize system again at the defective that prior art exists.
The present invention adopts following technical scheme for achieving the above object:
The present invention's energy recovery of discharging is utilized system again, it is characterized in that comprising energy management unit and N substrate that is set up in parallel, and described N substrate that is set up in parallel is connected with energy management unit by communication bus respectively, and wherein N is the natural number greater than 1.
Preferably, a described N board structure is identical, each substrate all comprises battery management system, dividing cell, switch unit and a plurality of energy-storage units, battery management system is controlled dividing cell and switch unit respectively, and direct correspondence is set up in parallel a plurality of energy-storage units between dividing cell and the switch unit.
Preferably, described dividing cell constitutes by the metal-oxide-semiconductor drive circuit and with the mutually corresponding metal-oxide-semiconductor array of energy-storage units, and the gate pole of each metal-oxide-semiconductor is connected with the output of metal-oxide-semiconductor drive circuit respectively, corresponding with the energy-storage units respectively connection of the source electrode of each metal-oxide-semiconductor.
Preferably, described switch unit comprises discharge loop and the charge circuit that structure is identical, each loop all is set up in parallel by the metal-oxide-semiconductor identical with the energy-storage units number and constitutes, the gate pole of each metal-oxide-semiconductor is connected with the control signal output ends of battery management system respectively, corresponding with the energy-storage units respectively connection of the source electrode of each metal-oxide-semiconductor.
Preferably, described energy-storage units is made up of two groups of lead-acid battery groups, cell charging parallel connection in the battery pack, discharge series connection.
System of the present invention is made up of energy-storage units, energy management unit and base board unit three parts, and system utilizes the MOSFET control technology to realize shunting, gives batteries charging again, finishes the energy recuperation process; Handoff technique is realized the charge/discharge conversion of battery pack, finishes energy and utilizes process again.Reliability height of the present invention, adaptability is strong, technological attrition is low, the organic efficiency height.
Description of drawings
Fig. 1 is a system construction drawing, and the concrete formation and the operation principle of system has been described.
Fig. 2 is the substrate pie graph, and the effect of dividing cell in the substrate has been described.
Fig. 3 is the shunting principle schematic diagram, has illustrated how to realize shunting.
Fig. 4 is the dividing cell schematic diagram, and the detailed method that realizes shunting on the hardware has been described.
Fig. 5 is the switch unit schematic diagram, and the conversion that how to realize the charge/discharge state has been described.
Embodiment
As shown in Figure 1, system is based on traditional RS485 principal and subordinate topological structure, and monitoring station adopts mode and each piece substrate of patrolling and examining to carry out data communication.Each piece substrate has shunting, switches two big units, and is independent between substrate.After substrate receives the home site order, will finish the pairing of physical address automatically, successful matching is then analyzed order and is responded, otherwise, abandon this order.Well like this guaranteed to have only on any time bus substrate, avoided substrate generation communication link to block up and cause paralysis with home site communication success.The substrate bottom communication adopts the CRC16 checking algorithm, and monitoring station BMS application software adopts the development platform based on the LABVIEW graphic programming, has both improved reliability, has also enriched human-computer interaction interface.
Energy management unit (BMS)
By calling the VISA communication port of LABVIEW, in conjunction with the RS485 bus protocol, finish host computer and be connected with networking between a plurality of substrates, finally realize transfer of data.Energy management unit has defined application layer protocol and physical link layer protocol based on the communication network of RS485 bus, has finished batteries charging electric current, charging voltage, discharging current, discharge voltage, the isoparametric monitoring of battery pack residual capacity.
Base board unit
In conjunction with the physical characteristic of MOSFET, not only realize shunting on the hardware, finished of the conversion of big electric current to little electric current, reduced and utilized risk, stored again for energy and create conditions, can also realize switching, finish conversion of operation state between the battery pack, provide basic platform for energy utilizes again.
Be the substrate pie graph as shown in Figure 2, dividing cell is one of four big units of substrate, also is native system design core technology place.The effect of dividing cell is with the total current mean allocation, finishes the conversion process of big electric current to little electric current, for energy storage creates conditions.
As at the concrete application case of industry spot, the total current size is at random on the discharge bus.Example: the Electrical Discharge Machine of 250CH, each passage 1A constant-current discharge is under the situation of N in lithium battery quantity, the total current size also is N(0＜N≤250 on the Electrical Discharge Machine bus) A.
As Fig. 3, shunting utilizes the MOSFET array to realize, specifically with reference to Fig. 4, the MOSFET of bridge wall opens, turn-offs and finish by controlling up and down.Consider the randomness of electric current on the bus,, promptly shunt according to the size of bus current in real time so the full-bridge circuit of deriving must possess the current following function.Mid portion is a safety return circuit, when the full-bridge loop of deriving all break down in emergency circumstances open-minded, guiding shunting.Bridge wall MOSFET drives and adopts the ground mode that suspends up and down, cooperates related control algolithm to carry out, and promptly a cycle of opening is divided into the n equal portions, and sheet is taken turns to each MOSFET open-minded.Realize that with tradition shunt method compares, we possess characteristics such as reliability height, adaptability are strong.
As Fig. 5 is switch unit.Be to cooperate dividing cell to finish the switching that energy storage utilizes charge/discharge state in the process again, promptly realize being recovered to the process of utilizing again.Because have property difference between the monomer energy-storage units, so charging is carried out floatingly; In order to improve utilization ratio, do not append boosting unit during discharge, directly carry out but be together in series, just need altogether.The key technology of switch unit is exactly how to handle well in the charge/discharge state exchange, overcomes the influence that voltage differently brings.Because discharge belongs to different circuit with charging, state switches to be realized by the MOSFET array equally.During charging, the MOSFET on the charge circuit is open-minded, and each energy-storage units links to each other with the Electrical Discharge Machine bus, and the tributary electric current after the shunting directly flows to the energy-storage units storage, charges floatingly; During discharge, the MOSFET of discharge loop is open-minded, realizes discharged in series between the energy-storage units.Compare with traditional DC/DC increasing apparatus, utilize the handoff technique loss of MOSFET array low, the organic efficiency height.
Claims (5)
1. a discharge energy recovery is utilized system again, it is characterized in that comprising energy management unit and N substrate that is set up in parallel, and described N substrate that is set up in parallel is connected with energy management unit by communication bus respectively, and wherein N is the natural number greater than 1.
2. discharge energy recovery according to claim 1 is utilized system again, it is characterized in that a described N board structure is identical, each substrate all comprises battery management system, dividing cell, switch unit and a plurality of energy-storage units, battery management system is controlled dividing cell and switch unit respectively, and direct correspondence is set up in parallel a plurality of energy-storage units between dividing cell and the switch unit.
3. discharge energy recovery according to claim 2 is utilized system again, it is characterized in that described dividing cell constitutes by the metal-oxide-semiconductor drive circuit and with the mutually corresponding metal-oxide-semiconductor array of energy-storage units, the gate pole of each metal-oxide-semiconductor is connected with the output of metal-oxide-semiconductor drive circuit respectively, corresponding with the energy-storage units respectively connection of the source electrode of each metal-oxide-semiconductor.
4. discharge energy recovery according to claim 2 is utilized system again, it is characterized in that discharge loop and charge circuit that described switch unit comprises that structure is identical, each loop all is made of the metal-oxide-semiconductor device identical with the energy-storage units number, the gate pole of each metal-oxide-semiconductor is connected with the control signal output ends of battery management system respectively, corresponding with the energy-storage units respectively connection of the source electrode of each metal-oxide-semiconductor.
5. discharge energy recovery according to claim 2 is utilized system again, it is characterized in that described energy-storage units is made up of two groups of lead-acid battery groups, in the battery pack cell charging in parallel, the discharge series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200957626U CN201975483U (en) | 2011-04-02 | 2011-04-02 | Discharging energy recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200957626U CN201975483U (en) | 2011-04-02 | 2011-04-02 | Discharging energy recycling system |
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| Publication Number | Publication Date |
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| CN201975483U true CN201975483U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200957626U Expired - Lifetime CN201975483U (en) | 2011-04-02 | 2011-04-02 | Discharging energy recycling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541472A (en) * | 2018-11-28 | 2019-03-29 | 江苏金派克新能源有限公司 | Lithium battery cycle charge-discharge reutilization system |
| CN110544798A (en) * | 2019-09-12 | 2019-12-06 | 浙江齐享科技有限公司 | Battery pack parallel management module, energy storage power station and combined energy storage power station |
-
2011
- 2011-04-02 CN CN2011200957626U patent/CN201975483U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541472A (en) * | 2018-11-28 | 2019-03-29 | 江苏金派克新能源有限公司 | Lithium battery cycle charge-discharge reutilization system |
| CN110544798A (en) * | 2019-09-12 | 2019-12-06 | 浙江齐享科技有限公司 | Battery pack parallel management module, energy storage power station and combined energy storage power station |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 27, Changjiang Road, new area, Wuxi, Jiangsu Province Patentee after: Murata new energy (Wuxi) Co., Ltd. Address before: 214028 Changjiang Road No. 27, Wuxi national high tech Industrial Development Zone, Wuxi City, Jiangsu Patentee before: Sony Electronic (Wuxi) Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |