CN104081615A - Method for realizing energy storage of power grid - Google Patents
Method for realizing energy storage of power grid Download PDFInfo
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- CN104081615A CN104081615A CN201280059551.4A CN201280059551A CN104081615A CN 104081615 A CN104081615 A CN 104081615A CN 201280059551 A CN201280059551 A CN 201280059551A CN 104081615 A CN104081615 A CN 104081615A
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- Prior art keywords
- battery bag
- power network
- group
- battery
- energy storage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A method for realizing the energy storage of power grid comprises following steps of obtaining (101) the power value of the power grid; reading (102) basic parameters of the battery packs in all the groups in a parallel link, wherein the groups are connected with other groups through a multi-secondary-winding transformer; judging (103) whether all the battery packs in the groups in the parallel link are normal; if yes, sending (104) control commands to control all the battery packs in the groups in the parallel link to supply power to the power grid according to the power value of the power grid. Using the method for realizing the energy storage of the power grid can maximize the reuse of the decommission batteries in electric vehicles, utilize their remaining capacity, save cost, realize reusing resources and reduce pollution.
Description
A kind of method and technology field for realizing power network energy storage
The present invention relates to technical field of battery management, more particularly to a kind of method for realizing power network energy storage.Background technology
One batteries of electric automobile bag is considered as having reached the terminal in its automobile-used life-span when its battery capacity decays to the 70% of new battery bag energy or peak power.Actually the battery also has many residual capacities, they can be fixed on energy-storage units with the power network not high to power requirement.The application of fixed energy-storage battery is often without weight and volume limitation harsh under electric automobile use condition, and this means that the requirement to cell power density and energy density can be reduced.The pure electronic, plug-in hybrid and the quantity of ordinary hybrid car gone into operation due to future can be more and more, and secondary use of batteries of electric automobile just seems especially feasible.
Why lithium ion battery bag is widely used in electric automobile, plug-in hybrid automobile and hybrid vehicle, exactly because lithium ion battery can provide higher capacity and charging and discharging capabilities.In order to realize the vehicle performance standard of height, reach high safety and reliability standard, reduce cost and maximized extension battery life, being employed during design hybrid power or pure electric automobile battery bag improves or optimizes the advanced battery detection and management system of energy transmission system general function, if the system of this complex and expensive is not used again during secondary use, it is unfavorable for the recycling of resource.
However, can cause the capacity volume variance between battery bag the problems such as capacity attenuation different between single battery core in the design difference existed due to pure electric automobile/plug-in hybrid automobile/ordinary hybrid garage, off-gauge battery module, different operating cycle, same battery bag.Existing method is to carry out secondary before use, first breaking these batteries to these batteries, then is screened, sorted, tested, and configuration is then re-assemblied again and is used.In the process, it is a labor-intensive process that test and old and useless battery, which dismount conversion, these battery bags for re-assemblying will need brand-new battery detection and management system in addition, and the retired battery bag got off of different automobile types, also need to redesign different cell tubes
Reason system, these technical problems and economic feasibility are the biggest obstacles of batteries of electric automobile secondary application in energy storage field.The content of the invention
The embodiments of the invention provide a kind of method for realizing power network energy storage, can substantially the secondary retired battery of use electric automobile utilizes its residual capacity on the premise of without carrying out numerous and diverse test to battery, cost has been saved, resource reutilization is realized, pollution is reduced.
To reach above-mentioned purpose, the invention provides a kind of method for realizing power network energy storage, including：Obtain the performance number of power network；
The basic parameter of battery bag in all groups on parallel links is read, the group is connected with group by way of many secondary winding transformers；
The whether normal of battery bag in all groups judged on the parallel links；
If normal, control command is issued, controls on the parallel links that battery bag is energized to the power network in all groups.
The method that what the present invention was provided realize power network energy storage, by the way that same type of battery bag is together in parallel, it is in parallel again with another group of different types of batteries in parallel connection bag again, and the connection by the way of many secondary winding transformers to realize between different battery bags, switching connection energy supply between the bidirectional, dc/AC converter and battery bag group and power network that are managed by central control system, substantially the secondary retired battery of use electric automobile utilizes its residual capacity, cost is saved, resource reutilization is realized, pollution is reduced.Brief description of the drawings
For the technical scheme of the clearer explanation embodiment of the present invention, the accompanying drawing used required in being described below to embodiment makees the introduction of cylinder list, obviously, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart for the method for realizing power network energy storage in the embodiment of the present invention one；
Fig. 2 be the embodiment of the present invention two in realize that different battery bags are connected to the flow chart that power network is powered using the mode of how secondary winding transformer；
Fig. 3 be the embodiment of the present invention two in realize that different battery bags are connected to the schematic diagram that power network is powered using the mode of how secondary winding transformer；
Fig. 4 is the flow chart of battery bag state-detection in a group in the embodiment of the present invention three.Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention; clear, complete description is carried out to the technical scheme in the embodiment of the present invention; obviously described embodiment is only a part of embodiment of the present invention; the embodiment being not all of; based on the embodiment in the present invention; the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not paid, belongs to the scope of protection of the invention.
The embodiment of the present invention one provide a kind of flow chart for the method for realizing power network energy storage, implement process as shown in figure 1, including：
Step 101:Obtain the performance number of power network.
Step 102:The basic parameter of battery bag in all groups on parallel links is read, the group is connected with group by way of many secondary winding transformers,
The basic parameter of battery bag includes：Current value, magnitude of voltage and resistance value.
The group is composed in parallel by 8-16 same type of battery bags, and group battery bag is detected, is specifically included：Obtain the same kind battery pack current and voltage parameter；Compare the voltage parameter of the same kind battery bag；The switching control state of the same kind battery bag is judged according to the voltage parameter of the battery bag；The same kind battery pack current parameter is monitored, weak and weary battery bag is judged and perfects battery bag；If new perfecting battery bag it was found that being replaced with if weak and weary battery bag；Perfect battery bag and compose in parallel a group with the new battery bag that perfects.
It is different types of battery bag between group and group, realizes that multiple groups are connected using the mode of how secondary winding transformer.Battery bag between the group performs data communication by CAN controller LAN protocol, LIN local internet protocols, Flexray In-vehicle networking agreements of future generation or Ethernet Ethernet protocols with the same type of battery bag.
Step 103:The whether normal of battery bag in all groups judged on the parallel links, compare on the parallel links of reading in all groups the basic parameter of battery bag with composing in parallel whether the basic parameter of each corresponding battery bag before group changes, if unchanged, normally.
Step 104:If normal, then issue control command, energized according to battery bag in all groups on the performance number of the power network control parallel links to the power network, the method for realizing power network energy storage provided especially by bidirectional, dc/AC converter the present embodiment, by the way that same type of battery bag is together in parallel, it is in parallel again with another group of different types of batteries in parallel connection bag again, and the connection by the way of many secondary winding transformers to realize between different battery bags, switching connection energy supply between the bidirectional, dc/AC converter and battery bag group and power network that are managed by central control system, substantially the secondary retired battery of use electric automobile utilizes its residual capacity, cost is saved, realize resource reutilization, reduce pollution.
The embodiment of the present invention two is provided realizes that different battery bags are connected to the flow chart that power network is powered using the mode of many secondary winding transformers, implement process as shown in Fig. 2 including：
Step 201, the parallel connection of same type battery bag formed into a group, the group composes in parallel for the battery bag of 8-16 same type.
Step 202, different type battery bag are attached by way of many secondary winding transformers.
Step 203, the performance number for obtaining power network, realization energy supply is connected by battery bag in all groups on bidirectional, dc/AC converter and the parallel links with power network switching.
Fig. 3 be the present embodiment in realize that different battery bags are connected to the schematic diagram that power network is powered using the mode of how secondary winding transformer
Battery A- batteries C in Fig. 3 is respectively different types of battery bag, cited battery A- batteries C, which is not suggested that, in Fig. 3 to be attached different types of battery bag in 3 by way of many secondary winding transformers, user can according to the need for itself and power network watt level, add multiple different types of battery bags and be attached again by way of many secondary winding transformers.Specific work process includes：By step 201, by battery A- batteries C, parallel connection forms a group respectively.
It is attached by way of battery A- batteries C to be used to step 202 many secondary winding transformers.The performance number of power network is obtained by step 203, realization energy supply is connected with power network switching by battery bag in all groups on bidirectional, dc/AC converter and the parallel links.
The modes of many secondary winding transformers of use that the present embodiment is provided realizes that different battery bags are connected to what power network was powered, and battery bag retired from different automobile types in reality is together in parallel, power network stored energy application is realized.
The flow chart of battery bag state-detection in group, implementation process are provided in the embodiment of the present invention three as shown in figure 4, including：
Step 301, the acquisition same kind battery pack current and voltage parameter.
The voltage parameter of step 302, relatively more described same kind battery bag.
Step 303, the switching control state for judging according to the voltage parameter of the battery bag same kind battery bag.
Step 304, the monitoring same kind battery pack current parameter, judge weak and weary battery bag and perfect battery bag.
Step 305, it is replaced with if weak and weary battery bag is found and new perfects battery bag.
Step 306, perfect battery bag and compose in parallel a group with the new battery bag that perfects.
Cell parallel often has identical voltage, but state-of-charge and those batteries fitness regime can due to the past on former vehicle different use intensities and cause different degree of degenerations.When detecting a battery bag and reaching its service life terminal, then for weak and weary battery bag, it is necessary to be replaced with the battery for perfecting state, when all battery bags are to perfect battery bag to will be helpful to improve system effectiveness in a group, increase the service life.
The flow chart of battery bag state-detection in a group is provided in the embodiment of the present invention three, is detected by the state to battery bag, the battery bag for perfecting state in weak battery bag, switching is investigated, improves system effectiveness, extend service life.
Disclosed above is only the specific embodiment of the present invention, and still, the present invention is not limited to this, and the changes that any person skilled in the art can think of should all fall into protection scope of the present invention.
Claims (1)
- Claim1st, a kind of method for realizing power network energy storage, it is characterised in that comprise the following steps：Obtain the performance number of power network；The basic parameter of battery bag in all groups on parallel links is read, the group is connected with group by way of many secondary winding transformers；The whether normal of battery bag in all groups judged on the parallel links；If normal, control command is issued, is energized according to battery bag in all groups on the performance number of the power network control parallel links to the power network.2nd, a kind of method for realizing power network energy storage as claimed in claim 1, it is characterised in that the group includes：It is 8-16 that same type of battery bag, which composes in parallel same type of battery bag quantity in a group, the group,.3rd, a kind of method for realizing power network energy storage as claimed in claim 2, it is characterised in that the same type of battery bag, which composes in parallel a group, to be included：Battery bag state-detection, is specifically included：Obtain the same kind battery pack current and voltage parameter；Compare the voltage parameter of the same kind battery bag；The switching control state of the same kind battery bag is judged according to the voltage parameter of the battery bag；The same kind battery pack current parameter is monitored, weak and weary battery bag is judged and perfects battery bag；If new perfecting battery bag it was found that being replaced with if weak and weary battery bag；Perfect battery bag and compose in parallel a group with the new battery bag that perfects.4th, a kind of method for realizing power network energy storage as claimed in claim 2, it is characterised in that the same type of battery bag, which composes in parallel a group, to be included：Data communication is performed with the same type of battery bag by CAN controller LAN protocol, LIN local internet protocols, Flexray In-vehicle networking agreements of future generation or Ethernet Ethernet protocols.5th, a kind of method for realizing power network energy storage as claimed in claim 1, it is characterised in that battery bag includes to power network energy supply in all groups on the control parallel links： Pass through bidirectional, dc/exchange conversionEnergy supply is realized in power network switching connection.6th, a kind of method for realizing power network energy storage as claimed in claim 1, it is characterised in that the group and group be connected by way of many secondary winding transformers including：It is different types of battery bag between group and group, realizes that multiple groups are connected using the mode of how secondary winding transformer.7th, a kind of method for realizing power network energy storage as claimed in claim 1, it is characterised in that whether normally including for battery bag in all groups judged on the parallel links：Compare on the parallel links of reading in all groups the basic parameter of battery bag with composing in parallel whether the basic parameter of each corresponding battery bag before group changes；If unchanged, normally.8th, a kind of method for realizing power network energy storage as claimed in claim 1, it is characterised in that the basic parameter of the battery bag includes：Current value, magnitude of voltage and resistance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201280059551.4A CN104081615A (en) | 2012-03-30 | 2012-04-10 | Method for realizing energy storage of power grid |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210090853 | 2012-03-30 | ||
| CN201210090853.X | 2012-03-30 | ||
| PCT/CN2012/073692 WO2013143165A1 (en) | 2012-03-30 | 2012-04-10 | Method for realizing energy storage of power grid |
| CN201280059551.4A CN104081615A (en) | 2012-03-30 | 2012-04-10 | Method for realizing energy storage of power grid |
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| CN104081615A true CN104081615A (en) | 2014-10-01 |
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| CN201280059551.4A Pending CN104081615A (en) | 2012-03-30 | 2012-04-10 | Method for realizing energy storage of power grid |
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| WO (1) | WO2013143165A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107634559A (en) * | 2017-10-25 | 2018-01-26 | 上海伊控动力系统有限公司 | A kind of echelon of new-energy automobile old and useless battery utilizes system and application method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109494818A (en) * | 2017-09-11 | 2019-03-19 | 上海国际汽车城（集团）有限公司 | A kind of retired battery gradient utilization system of hot swap type and method |
| EP4003776A1 (en) * | 2019-07-22 | 2022-06-01 | Eco Stor AS | System and method for reusing an electric vehicle battery |
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| CN101442207A (en) * | 2008-12-30 | 2009-05-27 | 上海市电力公司 | Novel energy storage apparatus |
| JP2011259623A (en) * | 2010-06-09 | 2011-12-22 | Fuji Electric Co Ltd | Abnormality detection device for power storage apparatus |
| CN102315648A (en) * | 2011-09-05 | 2012-01-11 | 上海市电力公司 | 100-kilowatt nickel-hydrogen energy storage monitoring system and monitoring method thereof |
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| CN101567564B (en) * | 2009-06-09 | 2011-04-20 | 华中科技大学 | Voltage and power regulator based on the composite energy storage of storage battery and super capacitor |
| CN201726205U (en) * | 2010-06-09 | 2011-01-26 | 王新保 | AC energy storage cabinet and energy storage power station system |
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- 2012-04-10 WO PCT/CN2012/073692 patent/WO2013143165A1/en active Application Filing
- 2012-04-10 CN CN201280059551.4A patent/CN104081615A/en active Pending
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| CN101442207A (en) * | 2008-12-30 | 2009-05-27 | 上海市电力公司 | Novel energy storage apparatus |
| JP2011259623A (en) * | 2010-06-09 | 2011-12-22 | Fuji Electric Co Ltd | Abnormality detection device for power storage apparatus |
| CN102315648A (en) * | 2011-09-05 | 2012-01-11 | 上海市电力公司 | 100-kilowatt nickel-hydrogen energy storage monitoring system and monitoring method thereof |
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| WO2013143165A1 (en) | 2013-10-03 |
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